summaryrefslogtreecommitdiffstats
path: root/clang/lib/Serialization
diff options
context:
space:
mode:
Diffstat (limited to 'clang/lib/Serialization')
-rw-r--r--clang/lib/Serialization/CMakeLists.txt19
-rw-r--r--clang/lib/Serialization/GeneratePCH.cpp64
-rw-r--r--clang/lib/Serialization/Makefile19
-rw-r--r--clang/lib/Serialization/PCHReader.cpp3857
-rw-r--r--clang/lib/Serialization/PCHReaderDecl.cpp1600
-rw-r--r--clang/lib/Serialization/PCHReaderStmt.cpp1775
-rw-r--r--clang/lib/Serialization/PCHWriter.cpp3094
-rw-r--r--clang/lib/Serialization/PCHWriterDecl.cpp1174
-rw-r--r--clang/lib/Serialization/PCHWriterStmt.cpp1370
9 files changed, 12972 insertions, 0 deletions
diff --git a/clang/lib/Serialization/CMakeLists.txt b/clang/lib/Serialization/CMakeLists.txt
new file mode 100644
index 00000000000..a7cd4b58ee6
--- /dev/null
+++ b/clang/lib/Serialization/CMakeLists.txt
@@ -0,0 +1,19 @@
+set(LLVM_NO_RTTI 1)
+
+add_clang_library(clangSerialization
+ PCHReader.cpp
+ PCHReaderDecl.cpp
+ PCHReaderStmt.cpp
+ PCHWriter.cpp
+ PCHWriterDecl.cpp
+ PCHWriterStmt.cpp
+ )
+
+add_dependencies(clangSerialization
+ ClangAttrClasses
+ ClangAttrList
+ ClangDiagnosticFrontend
+ ClangDiagnosticLex
+ ClangDiagnosticSema
+ ClangDeclNodes
+ ClangStmtNodes)
diff --git a/clang/lib/Serialization/GeneratePCH.cpp b/clang/lib/Serialization/GeneratePCH.cpp
new file mode 100644
index 00000000000..55eaa9c0840
--- /dev/null
+++ b/clang/lib/Serialization/GeneratePCH.cpp
@@ -0,0 +1,64 @@
+//===--- GeneratePCH.cpp - AST Consumer for PCH Generation ------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the CreatePCHGenerate function, which creates an
+// ASTConsume that generates a PCH file.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Frontend/ASTConsumers.h"
+#include "clang/Serialization/PCHWriter.h"
+#include "clang/Sema/SemaConsumer.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Basic/FileManager.h"
+#include "llvm/Bitcode/BitstreamWriter.h"
+#include "llvm/Support/raw_ostream.h"
+#include <string>
+
+using namespace clang;
+
+PCHGenerator::PCHGenerator(const Preprocessor &PP,
+ bool Chaining,
+ const char *isysroot,
+ llvm::raw_ostream *OS)
+ : PP(PP), isysroot(isysroot), Out(OS), SemaPtr(0),
+ StatCalls(0), Stream(Buffer), Writer(Stream) {
+
+ // Install a stat() listener to keep track of all of the stat()
+ // calls.
+ StatCalls = new MemorizeStatCalls;
+ // If we have a chain, we want new stat calls only, so install the memorizer
+ // *after* the already installed PCHReader's stat cache.
+ PP.getFileManager().addStatCache(StatCalls,
+ /*AtBeginning=*/!Chaining);
+}
+
+void PCHGenerator::HandleTranslationUnit(ASTContext &Ctx) {
+ if (PP.getDiagnostics().hasErrorOccurred())
+ return;
+
+ // Emit the PCH file
+ assert(SemaPtr && "No Sema?");
+ Writer.WritePCH(*SemaPtr, StatCalls, isysroot);
+
+ // Write the generated bitstream to "Out".
+ Out->write((char *)&Buffer.front(), Buffer.size());
+
+ // Make sure it hits disk now.
+ Out->flush();
+
+ // Free up some memory, in case the process is kept alive.
+ Buffer.clear();
+}
+
+PCHDeserializationListener *PCHGenerator::GetPCHDeserializationListener() {
+ return &Writer;
+}
diff --git a/clang/lib/Serialization/Makefile b/clang/lib/Serialization/Makefile
new file mode 100644
index 00000000000..e89ddc38ec9
--- /dev/null
+++ b/clang/lib/Serialization/Makefile
@@ -0,0 +1,19 @@
+##===- clang/lib/Serialization/Makefile --------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+#
+# This implements the semantic analyzer and AST builder library for the
+# C-Language front-end.
+#
+##===----------------------------------------------------------------------===##
+
+CLANG_LEVEL := ../..
+LIBRARYNAME := clangSerialization
+
+include $(CLANG_LEVEL)/Makefile
+
diff --git a/clang/lib/Serialization/PCHReader.cpp b/clang/lib/Serialization/PCHReader.cpp
new file mode 100644
index 00000000000..852bbaf21aa
--- /dev/null
+++ b/clang/lib/Serialization/PCHReader.cpp
@@ -0,0 +1,3857 @@
+//===--- PCHReader.cpp - Precompiled Headers Reader -------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the PCHReader class, which reads a precompiled header.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Serialization/PCHReader.h"
+#include "clang/Serialization/PCHDeserializationListener.h"
+#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/Frontend/Utils.h"
+#include "clang/Sema/Sema.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/Type.h"
+#include "clang/AST/TypeLocVisitor.h"
+#include "clang/Lex/MacroInfo.h"
+#include "clang/Lex/PreprocessingRecord.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Lex/HeaderSearch.h"
+#include "clang/Basic/OnDiskHashTable.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/SourceManagerInternals.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Basic/Version.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Bitcode/BitstreamReader.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/System/Path.h"
+#include <algorithm>
+#include <iterator>
+#include <cstdio>
+#include <sys/stat.h>
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// PCH reader validator implementation
+//===----------------------------------------------------------------------===//
+
+PCHReaderListener::~PCHReaderListener() {}
+
+bool
+PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts) {
+ const LangOptions &PPLangOpts = PP.getLangOptions();
+#define PARSE_LANGOPT_BENIGN(Option)
+#define PARSE_LANGOPT_IMPORTANT(Option, DiagID) \
+ if (PPLangOpts.Option != LangOpts.Option) { \
+ Reader.Diag(DiagID) << LangOpts.Option << PPLangOpts.Option; \
+ return true; \
+ }
+
+ PARSE_LANGOPT_BENIGN(Trigraphs);
+ PARSE_LANGOPT_BENIGN(BCPLComment);
+ PARSE_LANGOPT_BENIGN(DollarIdents);
+ PARSE_LANGOPT_BENIGN(AsmPreprocessor);
+ PARSE_LANGOPT_IMPORTANT(GNUMode, diag::warn_pch_gnu_extensions);
+ PARSE_LANGOPT_IMPORTANT(GNUKeywords, diag::warn_pch_gnu_keywords);
+ PARSE_LANGOPT_BENIGN(ImplicitInt);
+ PARSE_LANGOPT_BENIGN(Digraphs);
+ PARSE_LANGOPT_BENIGN(HexFloats);
+ PARSE_LANGOPT_IMPORTANT(C99, diag::warn_pch_c99);
+ PARSE_LANGOPT_IMPORTANT(Microsoft, diag::warn_pch_microsoft_extensions);
+ PARSE_LANGOPT_IMPORTANT(CPlusPlus, diag::warn_pch_cplusplus);
+ PARSE_LANGOPT_IMPORTANT(CPlusPlus0x, diag::warn_pch_cplusplus0x);
+ PARSE_LANGOPT_BENIGN(CXXOperatorName);
+ PARSE_LANGOPT_IMPORTANT(ObjC1, diag::warn_pch_objective_c);
+ PARSE_LANGOPT_IMPORTANT(ObjC2, diag::warn_pch_objective_c2);
+ PARSE_LANGOPT_IMPORTANT(ObjCNonFragileABI, diag::warn_pch_nonfragile_abi);
+ PARSE_LANGOPT_IMPORTANT(ObjCNonFragileABI2, diag::warn_pch_nonfragile_abi2);
+ PARSE_LANGOPT_IMPORTANT(NoConstantCFStrings,
+ diag::warn_pch_no_constant_cfstrings);
+ PARSE_LANGOPT_BENIGN(PascalStrings);
+ PARSE_LANGOPT_BENIGN(WritableStrings);
+ PARSE_LANGOPT_IMPORTANT(LaxVectorConversions,
+ diag::warn_pch_lax_vector_conversions);
+ PARSE_LANGOPT_IMPORTANT(AltiVec, diag::warn_pch_altivec);
+ PARSE_LANGOPT_IMPORTANT(Exceptions, diag::warn_pch_exceptions);
+ PARSE_LANGOPT_IMPORTANT(SjLjExceptions, diag::warn_pch_sjlj_exceptions);
+ PARSE_LANGOPT_IMPORTANT(NeXTRuntime, diag::warn_pch_objc_runtime);
+ PARSE_LANGOPT_IMPORTANT(Freestanding, diag::warn_pch_freestanding);
+ PARSE_LANGOPT_IMPORTANT(NoBuiltin, diag::warn_pch_builtins);
+ PARSE_LANGOPT_IMPORTANT(ThreadsafeStatics,
+ diag::warn_pch_thread_safe_statics);
+ PARSE_LANGOPT_IMPORTANT(POSIXThreads, diag::warn_pch_posix_threads);
+ PARSE_LANGOPT_IMPORTANT(Blocks, diag::warn_pch_blocks);
+ PARSE_LANGOPT_BENIGN(EmitAllDecls);
+ PARSE_LANGOPT_IMPORTANT(MathErrno, diag::warn_pch_math_errno);
+ PARSE_LANGOPT_BENIGN(getSignedOverflowBehavior());
+ PARSE_LANGOPT_IMPORTANT(HeinousExtensions,
+ diag::warn_pch_heinous_extensions);
+ // FIXME: Most of the options below are benign if the macro wasn't
+ // used. Unfortunately, this means that a PCH compiled without
+ // optimization can't be used with optimization turned on, even
+ // though the only thing that changes is whether __OPTIMIZE__ was
+ // defined... but if __OPTIMIZE__ never showed up in the header, it
+ // doesn't matter. We could consider making this some special kind
+ // of check.
+ PARSE_LANGOPT_IMPORTANT(Optimize, diag::warn_pch_optimize);
+ PARSE_LANGOPT_IMPORTANT(OptimizeSize, diag::warn_pch_optimize_size);
+ PARSE_LANGOPT_IMPORTANT(Static, diag::warn_pch_static);
+ PARSE_LANGOPT_IMPORTANT(PICLevel, diag::warn_pch_pic_level);
+ PARSE_LANGOPT_IMPORTANT(GNUInline, diag::warn_pch_gnu_inline);
+ PARSE_LANGOPT_IMPORTANT(NoInline, diag::warn_pch_no_inline);
+ PARSE_LANGOPT_IMPORTANT(AccessControl, diag::warn_pch_access_control);
+ PARSE_LANGOPT_IMPORTANT(CharIsSigned, diag::warn_pch_char_signed);
+ PARSE_LANGOPT_IMPORTANT(ShortWChar, diag::warn_pch_short_wchar);
+ if ((PPLangOpts.getGCMode() != 0) != (LangOpts.getGCMode() != 0)) {
+ Reader.Diag(diag::warn_pch_gc_mode)
+ << LangOpts.getGCMode() << PPLangOpts.getGCMode();
+ return true;
+ }
+ PARSE_LANGOPT_BENIGN(getVisibilityMode());
+ PARSE_LANGOPT_IMPORTANT(getStackProtectorMode(),
+ diag::warn_pch_stack_protector);
+ PARSE_LANGOPT_BENIGN(InstantiationDepth);
+ PARSE_LANGOPT_IMPORTANT(OpenCL, diag::warn_pch_opencl);
+ PARSE_LANGOPT_BENIGN(CatchUndefined);
+ PARSE_LANGOPT_IMPORTANT(ElideConstructors, diag::warn_pch_elide_constructors);
+ PARSE_LANGOPT_BENIGN(SpellChecking);
+#undef PARSE_LANGOPT_IMPORTANT
+#undef PARSE_LANGOPT_BENIGN
+
+ return false;
+}
+
+bool PCHValidator::ReadTargetTriple(llvm::StringRef Triple) {
+ if (Triple == PP.getTargetInfo().getTriple().str())
+ return false;
+
+ Reader.Diag(diag::warn_pch_target_triple)
+ << Triple << PP.getTargetInfo().getTriple().str();
+ return true;
+}
+
+struct EmptyStringRef {
+ bool operator ()(llvm::StringRef r) const { return r.empty(); }
+};
+struct EmptyBlock {
+ bool operator ()(const PCHPredefinesBlock &r) const { return r.Data.empty(); }
+};
+
+static bool EqualConcatenations(llvm::SmallVector<llvm::StringRef, 2> L,
+ PCHPredefinesBlocks R) {
+ // First, sum up the lengths.
+ unsigned LL = 0, RL = 0;
+ for (unsigned I = 0, N = L.size(); I != N; ++I) {
+ LL += L[I].size();
+ }
+ for (unsigned I = 0, N = R.size(); I != N; ++I) {
+ RL += R[I].Data.size();
+ }
+ if (LL != RL)
+ return false;
+ if (LL == 0 && RL == 0)
+ return true;
+
+ // Kick out empty parts, they confuse the algorithm below.
+ L.erase(std::remove_if(L.begin(), L.end(), EmptyStringRef()), L.end());
+ R.erase(std::remove_if(R.begin(), R.end(), EmptyBlock()), R.end());
+
+ // Do it the hard way. At this point, both vectors must be non-empty.
+ llvm::StringRef LR = L[0], RR = R[0].Data;
+ unsigned LI = 0, RI = 0, LN = L.size(), RN = R.size();
+ (void) RN;
+ for (;;) {
+ // Compare the current pieces.
+ if (LR.size() == RR.size()) {
+ // If they're the same length, it's pretty easy.
+ if (LR != RR)
+ return false;
+ // Both pieces are done, advance.
+ ++LI;
+ ++RI;
+ // If either string is done, they're both done, since they're the same
+ // length.
+ if (LI == LN) {
+ assert(RI == RN && "Strings not the same length after all?");
+ return true;
+ }
+ LR = L[LI];
+ RR = R[RI].Data;
+ } else if (LR.size() < RR.size()) {
+ // Right piece is longer.
+ if (!RR.startswith(LR))
+ return false;
+ ++LI;
+ assert(LI != LN && "Strings not the same length after all?");
+ RR = RR.substr(LR.size());
+ LR = L[LI];
+ } else {
+ // Left piece is longer.
+ if (!LR.startswith(RR))
+ return false;
+ ++RI;
+ assert(RI != RN && "Strings not the same length after all?");
+ LR = LR.substr(RR.size());
+ RR = R[RI].Data;
+ }
+ }
+}
+
+static std::pair<FileID, llvm::StringRef::size_type>
+FindMacro(const PCHPredefinesBlocks &Buffers, llvm::StringRef MacroDef) {
+ std::pair<FileID, llvm::StringRef::size_type> Res;
+ for (unsigned I = 0, N = Buffers.size(); I != N; ++I) {
+ Res.second = Buffers[I].Data.find(MacroDef);
+ if (Res.second != llvm::StringRef::npos) {
+ Res.first = Buffers[I].BufferID;
+ break;
+ }
+ }
+ return Res;
+}
+
+bool PCHValidator::ReadPredefinesBuffer(const PCHPredefinesBlocks &Buffers,
+ llvm::StringRef OriginalFileName,
+ std::string &SuggestedPredefines) {
+ // We are in the context of an implicit include, so the predefines buffer will
+ // have a #include entry for the PCH file itself (as normalized by the
+ // preprocessor initialization). Find it and skip over it in the checking
+ // below.
+ llvm::SmallString<256> PCHInclude;
+ PCHInclude += "#include \"";
+ PCHInclude += NormalizeDashIncludePath(OriginalFileName);
+ PCHInclude += "\"\n";
+ std::pair<llvm::StringRef,llvm::StringRef> Split =
+ llvm::StringRef(PP.getPredefines()).split(PCHInclude.str());
+ llvm::StringRef Left = Split.first, Right = Split.second;
+ if (Left == PP.getPredefines()) {
+ Error("Missing PCH include entry!");
+ return true;
+ }
+
+ // If the concatenation of all the PCH buffers is equal to the adjusted
+ // command line, we're done.
+ // We build a SmallVector of the command line here, because we'll eventually
+ // need to support an arbitrary amount of pieces anyway (when we have chained
+ // PCH reading).
+ llvm::SmallVector<llvm::StringRef, 2> CommandLine;
+ CommandLine.push_back(Left);
+ CommandLine.push_back(Right);
+ if (EqualConcatenations(CommandLine, Buffers))
+ return false;
+
+ SourceManager &SourceMgr = PP.getSourceManager();
+
+ // The predefines buffers are different. Determine what the differences are,
+ // and whether they require us to reject the PCH file.
+ llvm::SmallVector<llvm::StringRef, 8> PCHLines;
+ for (unsigned I = 0, N = Buffers.size(); I != N; ++I)
+ Buffers[I].Data.split(PCHLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false);
+
+ llvm::SmallVector<llvm::StringRef, 8> CmdLineLines;
+ Left.split(CmdLineLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false);
+ Right.split(CmdLineLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false);
+
+ // Sort both sets of predefined buffer lines, since we allow some extra
+ // definitions and they may appear at any point in the output.
+ std::sort(CmdLineLines.begin(), CmdLineLines.end());
+ std::sort(PCHLines.begin(), PCHLines.end());
+
+ // Determine which predefines that were used to build the PCH file are missing
+ // from the command line.
+ std::vector<llvm::StringRef> MissingPredefines;
+ std::set_difference(PCHLines.begin(), PCHLines.end(),
+ CmdLineLines.begin(), CmdLineLines.end(),
+ std::back_inserter(MissingPredefines));
+
+ bool MissingDefines = false;
+ bool ConflictingDefines = false;
+ for (unsigned I = 0, N = MissingPredefines.size(); I != N; ++I) {
+ llvm::StringRef Missing = MissingPredefines[I];
+ if (!Missing.startswith("#define ")) {
+ Reader.Diag(diag::warn_pch_compiler_options_mismatch);
+ return true;
+ }
+
+ // This is a macro definition. Determine the name of the macro we're
+ // defining.
+ std::string::size_type StartOfMacroName = strlen("#define ");
+ std::string::size_type EndOfMacroName
+ = Missing.find_first_of("( \n\r", StartOfMacroName);
+ assert(EndOfMacroName != std::string::npos &&
+ "Couldn't find the end of the macro name");
+ llvm::StringRef MacroName = Missing.slice(StartOfMacroName, EndOfMacroName);
+
+ // Determine whether this macro was given a different definition on the
+ // command line.
+ std::string MacroDefStart = "#define " + MacroName.str();
+ std::string::size_type MacroDefLen = MacroDefStart.size();
+ llvm::SmallVector<llvm::StringRef, 8>::iterator ConflictPos
+ = std::lower_bound(CmdLineLines.begin(), CmdLineLines.end(),
+ MacroDefStart);
+ for (; ConflictPos != CmdLineLines.end(); ++ConflictPos) {
+ if (!ConflictPos->startswith(MacroDefStart)) {
+ // Different macro; we're done.
+ ConflictPos = CmdLineLines.end();
+ break;
+ }
+
+ assert(ConflictPos->size() > MacroDefLen &&
+ "Invalid #define in predefines buffer?");
+ if ((*ConflictPos)[MacroDefLen] != ' ' &&
+ (*ConflictPos)[MacroDefLen] != '(')
+ continue; // Longer macro name; keep trying.
+
+ // We found a conflicting macro definition.
+ break;
+ }
+
+ if (ConflictPos != CmdLineLines.end()) {
+ Reader.Diag(diag::warn_cmdline_conflicting_macro_def)
+ << MacroName;
+
+ // Show the definition of this macro within the PCH file.
+ std::pair<FileID, llvm::StringRef::size_type> MacroLoc =
+ FindMacro(Buffers, Missing);
+ assert(MacroLoc.second!=llvm::StringRef::npos && "Unable to find macro!");
+ SourceLocation PCHMissingLoc =
+ SourceMgr.getLocForStartOfFile(MacroLoc.first)
+ .getFileLocWithOffset(MacroLoc.second);
+ Reader.Diag(PCHMissingLoc, diag::note_pch_macro_defined_as) << MacroName;
+
+ ConflictingDefines = true;
+ continue;
+ }
+
+ // If the macro doesn't conflict, then we'll just pick up the macro
+ // definition from the PCH file. Warn the user that they made a mistake.
+ if (ConflictingDefines)
+ continue; // Don't complain if there are already conflicting defs
+
+ if (!MissingDefines) {
+ Reader.Diag(diag::warn_cmdline_missing_macro_defs);
+ MissingDefines = true;
+ }
+
+ // Show the definition of this macro within the PCH file.
+ std::pair<FileID, llvm::StringRef::size_type> MacroLoc =
+ FindMacro(Buffers, Missing);
+ assert(MacroLoc.second!=llvm::StringRef::npos && "Unable to find macro!");
+ SourceLocation PCHMissingLoc =
+ SourceMgr.getLocForStartOfFile(MacroLoc.first)
+ .getFileLocWithOffset(MacroLoc.second);
+ Reader.Diag(PCHMissingLoc, diag::note_using_macro_def_from_pch);
+ }
+
+ if (ConflictingDefines)
+ return true;
+
+ // Determine what predefines were introduced based on command-line
+ // parameters that were not present when building the PCH
+ // file. Extra #defines are okay, so long as the identifiers being
+ // defined were not used within the precompiled header.
+ std::vector<llvm::StringRef> ExtraPredefines;
+ std::set_difference(CmdLineLines.begin(), CmdLineLines.end(),
+ PCHLines.begin(), PCHLines.end(),
+ std::back_inserter(ExtraPredefines));
+ for (unsigned I = 0, N = ExtraPredefines.size(); I != N; ++I) {
+ llvm::StringRef &Extra = ExtraPredefines[I];
+ if (!Extra.startswith("#define ")) {
+ Reader.Diag(diag::warn_pch_compiler_options_mismatch);
+ return true;
+ }
+
+ // This is an extra macro definition. Determine the name of the
+ // macro we're defining.
+ std::string::size_type StartOfMacroName = strlen("#define ");
+ std::string::size_type EndOfMacroName
+ = Extra.find_first_of("( \n\r", StartOfMacroName);
+ assert(EndOfMacroName != std::string::npos &&
+ "Couldn't find the end of the macro name");
+ llvm::StringRef MacroName = Extra.slice(StartOfMacroName, EndOfMacroName);
+
+ // Check whether this name was used somewhere in the PCH file. If
+ // so, defining it as a macro could change behavior, so we reject
+ // the PCH file.
+ if (IdentifierInfo *II = Reader.get(MacroName)) {
+ Reader.Diag(diag::warn_macro_name_used_in_pch) << II;
+ return true;
+ }
+
+ // Add this definition to the suggested predefines buffer.
+ SuggestedPredefines += Extra;
+ SuggestedPredefines += '\n';
+ }
+
+ // If we get here, it's because the predefines buffer had compatible
+ // contents. Accept the PCH file.
+ return false;
+}
+
+void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI,
+ unsigned ID) {
+ PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID);
+ ++NumHeaderInfos;
+}
+
+void PCHValidator::ReadCounter(unsigned Value) {
+ PP.setCounterValue(Value);
+}
+
+//===----------------------------------------------------------------------===//
+// PCH reader implementation
+//===----------------------------------------------------------------------===//
+
+PCHReader::PCHReader(Preprocessor &PP, ASTContext *Context,
+ const char *isysroot, bool DisableValidation)
+ : Listener(new PCHValidator(PP, *this)), DeserializationListener(0),
+ SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()),
+ Diags(PP.getDiagnostics()), SemaObj(0), PP(&PP), Context(Context),
+ Consumer(0), isysroot(isysroot), DisableValidation(DisableValidation),
+ NumStatHits(0), NumStatMisses(0), NumSLocEntriesRead(0),
+ TotalNumSLocEntries(0), NumStatementsRead(0), TotalNumStatements(0),
+ NumMacrosRead(0), TotalNumMacros(0), NumSelectorsRead(0),
+ NumMethodPoolEntriesRead(0), NumMethodPoolMisses(0),
+ TotalNumMethodPoolEntries(0), NumLexicalDeclContextsRead(0),
+ TotalLexicalDeclContexts(0), NumVisibleDeclContextsRead(0),
+ TotalVisibleDeclContexts(0), NumCurrentElementsDeserializing(0) {
+ RelocatablePCH = false;
+}
+
+PCHReader::PCHReader(SourceManager &SourceMgr, FileManager &FileMgr,
+ Diagnostic &Diags, const char *isysroot,
+ bool DisableValidation)
+ : DeserializationListener(0), SourceMgr(SourceMgr), FileMgr(FileMgr),
+ Diags(Diags), SemaObj(0), PP(0), Context(0), Consumer(0),
+ isysroot(isysroot), DisableValidation(DisableValidation), NumStatHits(0),
+ NumStatMisses(0), NumSLocEntriesRead(0), TotalNumSLocEntries(0),
+ NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0),
+ TotalNumMacros(0), NumSelectorsRead(0), NumMethodPoolEntriesRead(0),
+ NumMethodPoolMisses(0), TotalNumMethodPoolEntries(0),
+ NumLexicalDeclContextsRead(0), TotalLexicalDeclContexts(0),
+ NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0),
+ NumCurrentElementsDeserializing(0) {
+ RelocatablePCH = false;
+}
+
+PCHReader::~PCHReader() {
+ for (unsigned i = 0, e = Chain.size(); i != e; ++i)
+ delete Chain[e - i - 1];
+}
+
+PCHReader::PerFileData::PerFileData()
+ : StatCache(0), LocalNumSLocEntries(0), LocalNumTypes(0), TypeOffsets(0),
+ LocalNumDecls(0), DeclOffsets(0), LocalNumIdentifiers(0),
+ IdentifierOffsets(0), IdentifierTableData(0), IdentifierLookupTable(0),
+ LocalNumMacroDefinitions(0), MacroDefinitionOffsets(0),
+ NumPreallocatedPreprocessingEntities(0), SelectorLookupTable(0),
+ SelectorLookupTableData(0), SelectorOffsets(0), LocalNumSelectors(0)
+{}
+
+void
+PCHReader::setDeserializationListener(PCHDeserializationListener *Listener) {
+ DeserializationListener = Listener;
+ if (DeserializationListener)
+ DeserializationListener->SetReader(this);
+}
+
+
+namespace {
+class PCHSelectorLookupTrait {
+ PCHReader &Reader;
+
+public:
+ struct data_type {
+ pch::SelectorID ID;
+ ObjCMethodList Instance, Factory;
+ };
+
+ typedef Selector external_key_type;
+ typedef external_key_type internal_key_type;
+
+ explicit PCHSelectorLookupTrait(PCHReader &Reader) : Reader(Reader) { }
+
+ static bool EqualKey(const internal_key_type& a,
+ const internal_key_type& b) {
+ return a == b;
+ }
+
+ static unsigned ComputeHash(Selector Sel) {
+ unsigned N = Sel.getNumArgs();
+ if (N == 0)
+ ++N;
+ unsigned R = 5381;
+ for (unsigned I = 0; I != N; ++I)
+ if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(I))
+ R = llvm::HashString(II->getName(), R);
+ return R;
+ }
+
+ // This hopefully will just get inlined and removed by the optimizer.
+ static const internal_key_type&
+ GetInternalKey(const external_key_type& x) { return x; }
+
+ static std::pair<unsigned, unsigned>
+ ReadKeyDataLength(const unsigned char*& d) {
+ using namespace clang::io;
+ unsigned KeyLen = ReadUnalignedLE16(d);
+ unsigned DataLen = ReadUnalignedLE16(d);
+ return std::make_pair(KeyLen, DataLen);
+ }
+
+ internal_key_type ReadKey(const unsigned char* d, unsigned) {
+ using namespace clang::io;
+ SelectorTable &SelTable = Reader.getContext()->Selectors;
+ unsigned N = ReadUnalignedLE16(d);
+ IdentifierInfo *FirstII
+ = Reader.DecodeIdentifierInfo(ReadUnalignedLE32(d));
+ if (N == 0)
+ return SelTable.getNullarySelector(FirstII);
+ else if (N == 1)
+ return SelTable.getUnarySelector(FirstII);
+
+ llvm::SmallVector<IdentifierInfo *, 16> Args;
+ Args.push_back(FirstII);
+ for (unsigned I = 1; I != N; ++I)
+ Args.push_back(Reader.DecodeIdentifierInfo(ReadUnalignedLE32(d)));
+
+ return SelTable.getSelector(N, Args.data());
+ }
+
+ data_type ReadData(Selector, const unsigned char* d, unsigned DataLen) {
+ using namespace clang::io;
+
+ data_type Result;
+
+ Result.ID = ReadUnalignedLE32(d);
+ unsigned NumInstanceMethods = ReadUnalignedLE16(d);
+ unsigned NumFactoryMethods = ReadUnalignedLE16(d);
+
+ // Load instance methods
+ ObjCMethodList *Prev = 0;
+ for (unsigned I = 0; I != NumInstanceMethods; ++I) {
+ ObjCMethodDecl *Method
+ = cast<ObjCMethodDecl>(Reader.GetDecl(ReadUnalignedLE32(d)));
+ if (!Result.Instance.Method) {
+ // This is the first method, which is the easy case.
+ Result.Instance.Method = Method;
+ Prev = &Result.Instance;
+ continue;
+ }
+
+ ObjCMethodList *Mem =
+ Reader.getSema()->BumpAlloc.Allocate<ObjCMethodList>();
+ Prev->Next = new (Mem) ObjCMethodList(Method, 0);
+ Prev = Prev->Next;
+ }
+
+ // Load factory methods
+ Prev = 0;
+ for (unsigned I = 0; I != NumFactoryMethods; ++I) {
+ ObjCMethodDecl *Method
+ = cast<ObjCMethodDecl>(Reader.GetDecl(ReadUnalignedLE32(d)));
+ if (!Result.Factory.Method) {
+ // This is the first method, which is the easy case.
+ Result.Factory.Method = Method;
+ Prev = &Result.Factory;
+ continue;
+ }
+
+ ObjCMethodList *Mem =
+ Reader.getSema()->BumpAlloc.Allocate<ObjCMethodList>();
+ Prev->Next = new (Mem) ObjCMethodList(Method, 0);
+ Prev = Prev->Next;
+ }
+
+ return Result;
+ }
+};
+
+} // end anonymous namespace
+
+/// \brief The on-disk hash table used for the global method pool.
+typedef OnDiskChainedHashTable<PCHSelectorLookupTrait>
+ PCHSelectorLookupTable;
+
+namespace {
+class PCHIdentifierLookupTrait {
+ PCHReader &Reader;
+ llvm::BitstreamCursor &Stream;
+
+ // If we know the IdentifierInfo in advance, it is here and we will
+ // not build a new one. Used when deserializing information about an
+ // identifier that was constructed before the PCH file was read.
+ IdentifierInfo *KnownII;
+
+public:
+ typedef IdentifierInfo * data_type;
+
+ typedef const std::pair<const char*, unsigned> external_key_type;
+
+ typedef external_key_type internal_key_type;
+
+ PCHIdentifierLookupTrait(PCHReader &Reader, llvm::BitstreamCursor &Stream,
+ IdentifierInfo *II = 0)
+ : Reader(Reader), Stream(Stream), KnownII(II) { }
+
+ static bool EqualKey(const internal_key_type& a,
+ const internal_key_type& b) {
+ return (a.second == b.second) ? memcmp(a.first, b.first, a.second) == 0
+ : false;
+ }
+
+ static unsigned ComputeHash(const internal_key_type& a) {
+ return llvm::HashString(llvm::StringRef(a.first, a.second));
+ }
+
+ // This hopefully will just get inlined and removed by the optimizer.
+ static const internal_key_type&
+ GetInternalKey(const external_key_type& x) { return x; }
+
+ static std::pair<unsigned, unsigned>
+ ReadKeyDataLength(const unsigned char*& d) {
+ using namespace clang::io;
+ unsigned DataLen = ReadUnalignedLE16(d);
+ unsigned KeyLen = ReadUnalignedLE16(d);
+ return std::make_pair(KeyLen, DataLen);
+ }
+
+ static std::pair<const char*, unsigned>
+ ReadKey(const unsigned char* d, unsigned n) {
+ assert(n >= 2 && d[n-1] == '\0');
+ return std::make_pair((const char*) d, n-1);
+ }
+
+ IdentifierInfo *ReadData(const internal_key_type& k,
+ const unsigned char* d,
+ unsigned DataLen) {
+ using namespace clang::io;
+ pch::IdentID ID = ReadUnalignedLE32(d);
+ bool IsInteresting = ID & 0x01;
+
+ // Wipe out the "is interesting" bit.
+ ID = ID >> 1;
+
+ if (!IsInteresting) {
+ // For uninteresting identifiers, just build the IdentifierInfo
+ // and associate it with the persistent ID.
+ IdentifierInfo *II = KnownII;
+ if (!II)
+ II = &Reader.getIdentifierTable().getOwn(k.first, k.first + k.second);
+ Reader.SetIdentifierInfo(ID, II);
+ II->setIsFromPCH();
+ return II;
+ }
+
+ unsigned Bits = ReadUnalignedLE16(d);
+ bool CPlusPlusOperatorKeyword = Bits & 0x01;
+ Bits >>= 1;
+ bool HasRevertedTokenIDToIdentifier = Bits & 0x01;
+ Bits >>= 1;
+ bool Poisoned = Bits & 0x01;
+ Bits >>= 1;
+ bool ExtensionToken = Bits & 0x01;
+ Bits >>= 1;
+ bool hasMacroDefinition = Bits & 0x01;
+ Bits >>= 1;
+ unsigned ObjCOrBuiltinID = Bits & 0x3FF;
+ Bits >>= 10;
+
+ assert(Bits == 0 && "Extra bits in the identifier?");
+ DataLen -= 6;
+
+ // Build the IdentifierInfo itself and link the identifier ID with
+ // the new IdentifierInfo.
+ IdentifierInfo *II = KnownII;
+ if (!II)
+ II = &Reader.getIdentifierTable().getOwn(k.first, k.first + k.second);
+ Reader.SetIdentifierInfo(ID, II);
+
+ // Set or check the various bits in the IdentifierInfo structure.
+ // Token IDs are read-only.
+ if (HasRevertedTokenIDToIdentifier)
+ II->RevertTokenIDToIdentifier();
+ II->setObjCOrBuiltinID(ObjCOrBuiltinID);
+ assert(II->isExtensionToken() == ExtensionToken &&
+ "Incorrect extension token flag");
+ (void)ExtensionToken;
+ II->setIsPoisoned(Poisoned);
+ assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword &&
+ "Incorrect C++ operator keyword flag");
+ (void)CPlusPlusOperatorKeyword;
+
+ // If this identifier is a macro, deserialize the macro
+ // definition.
+ if (hasMacroDefinition) {
+ uint32_t Offset = ReadUnalignedLE32(d);
+ Reader.ReadMacroRecord(Stream, Offset);
+ DataLen -= 4;
+ }
+
+ // Read all of the declarations visible at global scope with this
+ // name.
+ if (Reader.getContext() == 0) return II;
+ if (DataLen > 0) {
+ llvm::SmallVector<uint32_t, 4> DeclIDs;
+ for (; DataLen > 0; DataLen -= 4)
+ DeclIDs.push_back(ReadUnalignedLE32(d));
+ Reader.SetGloballyVisibleDecls(II, DeclIDs);
+ }
+
+ II->setIsFromPCH();
+ return II;
+ }
+};
+
+} // end anonymous namespace
+
+/// \brief The on-disk hash table used to contain information about
+/// all of the identifiers in the program.
+typedef OnDiskChainedHashTable<PCHIdentifierLookupTrait>
+ PCHIdentifierLookupTable;
+
+void PCHReader::Error(const char *Msg) {
+ Diag(diag::err_fe_pch_malformed) << Msg;
+}
+
+/// \brief Check the contents of the concatenation of all predefines buffers in
+/// the PCH chain against the contents of the predefines buffer of the current
+/// compiler invocation.
+///
+/// The contents should be the same. If not, then some command-line option
+/// changed the preprocessor state and we must probably reject the PCH file.
+///
+/// \returns true if there was a mismatch (in which case the PCH file
+/// should be ignored), or false otherwise.
+bool PCHReader::CheckPredefinesBuffers() {
+ if (Listener)
+ return Listener->ReadPredefinesBuffer(PCHPredefinesBuffers,
+ ActualOriginalFileName,
+ SuggestedPredefines);
+ return false;
+}
+
+//===----------------------------------------------------------------------===//
+// Source Manager Deserialization
+//===----------------------------------------------------------------------===//
+
+/// \brief Read the line table in the source manager block.
+/// \returns true if ther was an error.
+bool PCHReader::ParseLineTable(llvm::SmallVectorImpl<uint64_t> &Record) {
+ unsigned Idx = 0;
+ LineTableInfo &LineTable = SourceMgr.getLineTable();
+
+ // Parse the file names
+ std::map<int, int> FileIDs;
+ for (int I = 0, N = Record[Idx++]; I != N; ++I) {
+ // Extract the file name
+ unsigned FilenameLen = Record[Idx++];
+ std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen);
+ Idx += FilenameLen;
+ MaybeAddSystemRootToFilename(Filename);
+ FileIDs[I] = LineTable.getLineTableFilenameID(Filename.c_str(),
+ Filename.size());
+ }
+
+ // Parse the line entries
+ std::vector<LineEntry> Entries;
+ while (Idx < Record.size()) {
+ int FID = Record[Idx++];
+
+ // Extract the line entries
+ unsigned NumEntries = Record[Idx++];
+ assert(NumEntries && "Numentries is 00000");
+ Entries.clear();
+ Entries.reserve(NumEntries);
+ for (unsigned I = 0; I != NumEntries; ++I) {
+ unsigned FileOffset = Record[Idx++];
+ unsigned LineNo = Record[Idx++];
+ int FilenameID = FileIDs[Record[Idx++]];
+ SrcMgr::CharacteristicKind FileKind
+ = (SrcMgr::CharacteristicKind)Record[Idx++];
+ unsigned IncludeOffset = Record[Idx++];
+ Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID,
+ FileKind, IncludeOffset));
+ }
+ LineTable.AddEntry(FID, Entries);
+ }
+
+ return false;
+}
+
+namespace {
+
+class PCHStatData {
+public:
+ const bool hasStat;
+ const ino_t ino;
+ const dev_t dev;
+ const mode_t mode;
+ const time_t mtime;
+ const off_t size;
+
+ PCHStatData(ino_t i, dev_t d, mode_t mo, time_t m, off_t s)
+ : hasStat(true), ino(i), dev(d), mode(mo), mtime(m), size(s) {}
+
+ PCHStatData()
+ : hasStat(false), ino(0), dev(0), mode(0), mtime(0), size(0) {}
+};
+
+class PCHStatLookupTrait {
+ public:
+ typedef const char *external_key_type;
+ typedef const char *internal_key_type;
+
+ typedef PCHStatData data_type;
+
+ static unsigned ComputeHash(const char *path) {
+ return llvm::HashString(path);
+ }
+
+ static internal_key_type GetInternalKey(const char *path) { return path; }
+
+ static bool EqualKey(internal_key_type a, internal_key_type b) {
+ return strcmp(a, b) == 0;
+ }
+
+ static std::pair<unsigned, unsigned>
+ ReadKeyDataLength(const unsigned char*& d) {
+ unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d);
+ unsigned DataLen = (unsigned) *d++;
+ return std::make_pair(KeyLen + 1, DataLen);
+ }
+
+ static internal_key_type ReadKey(const unsigned char *d, unsigned) {
+ return (const char *)d;
+ }
+
+ static data_type ReadData(const internal_key_type, const unsigned char *d,
+ unsigned /*DataLen*/) {
+ using namespace clang::io;
+
+ if (*d++ == 1)
+ return data_type();
+
+ ino_t ino = (ino_t) ReadUnalignedLE32(d);
+ dev_t dev = (dev_t) ReadUnalignedLE32(d);
+ mode_t mode = (mode_t) ReadUnalignedLE16(d);
+ time_t mtime = (time_t) ReadUnalignedLE64(d);
+ off_t size = (off_t) ReadUnalignedLE64(d);
+ return data_type(ino, dev, mode, mtime, size);
+ }
+};
+
+/// \brief stat() cache for precompiled headers.
+///
+/// This cache is very similar to the stat cache used by pretokenized
+/// headers.
+class PCHStatCache : public StatSysCallCache {
+ typedef OnDiskChainedHashTable<PCHStatLookupTrait> CacheTy;
+ CacheTy *Cache;
+
+ unsigned &NumStatHits, &NumStatMisses;
+public:
+ PCHStatCache(const unsigned char *Buckets,
+ const unsigned char *Base,
+ unsigned &NumStatHits,
+ unsigned &NumStatMisses)
+ : Cache(0), NumStatHits(NumStatHits), NumStatMisses(NumStatMisses) {
+ Cache = CacheTy::Create(Buckets, Base);
+ }
+
+ ~PCHStatCache() { delete Cache; }
+
+ int stat(const char *path, struct stat *buf) {
+ // Do the lookup for the file's data in the PCH file.
+ CacheTy::iterator I = Cache->find(path);
+
+ // If we don't get a hit in the PCH file just forward to 'stat'.
+ if (I == Cache->end()) {
+ ++NumStatMisses;
+ return StatSysCallCache::stat(path, buf);
+ }
+
+ ++NumStatHits;
+ PCHStatData Data = *I;
+
+ if (!Data.hasStat)
+ return 1;
+
+ buf->st_ino = Data.ino;
+ buf->st_dev = Data.dev;
+ buf->st_mtime = Data.mtime;
+ buf->st_mode = Data.mode;
+ buf->st_size = Data.size;
+ return 0;
+ }
+};
+} // end anonymous namespace
+
+
+/// \brief Read a source manager block
+PCHReader::PCHReadResult PCHReader::ReadSourceManagerBlock(PerFileData &F) {
+ using namespace SrcMgr;
+
+ llvm::BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor;
+
+ // Set the source-location entry cursor to the current position in
+ // the stream. This cursor will be used to read the contents of the
+ // source manager block initially, and then lazily read
+ // source-location entries as needed.
+ SLocEntryCursor = F.Stream;
+
+ // The stream itself is going to skip over the source manager block.
+ if (F.Stream.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+
+ // Enter the source manager block.
+ if (SLocEntryCursor.EnterSubBlock(pch::SOURCE_MANAGER_BLOCK_ID)) {
+ Error("malformed source manager block record in PCH file");
+ return Failure;
+ }
+
+ RecordData Record;
+ while (true) {
+ unsigned Code = SLocEntryCursor.ReadCode();
+ if (Code == llvm::bitc::END_BLOCK) {
+ if (SLocEntryCursor.ReadBlockEnd()) {
+ Error("error at end of Source Manager block in PCH file");
+ return Failure;
+ }
+ return Success;
+ }
+
+ if (Code == llvm::bitc::ENTER_SUBBLOCK) {
+ // No known subblocks, always skip them.
+ SLocEntryCursor.ReadSubBlockID();
+ if (SLocEntryCursor.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+ continue;
+ }
+
+ if (Code == llvm::bitc::DEFINE_ABBREV) {
+ SLocEntryCursor.ReadAbbrevRecord();
+ continue;
+ }
+
+ // Read a record.
+ const char *BlobStart;
+ unsigned BlobLen;
+ Record.clear();
+ switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
+ default: // Default behavior: ignore.
+ break;
+
+ case pch::SM_LINE_TABLE:
+ if (ParseLineTable(Record))
+ return Failure;
+ break;
+
+ case pch::SM_SLOC_FILE_ENTRY:
+ case pch::SM_SLOC_BUFFER_ENTRY:
+ case pch::SM_SLOC_INSTANTIATION_ENTRY:
+ // Once we hit one of the source location entries, we're done.
+ return Success;
+ }
+ }
+}
+
+/// \brief Get a cursor that's correctly positioned for reading the source
+/// location entry with the given ID.
+llvm::BitstreamCursor &PCHReader::SLocCursorForID(unsigned ID) {
+ assert(ID != 0 && ID <= TotalNumSLocEntries &&
+ "SLocCursorForID should only be called for real IDs.");
+
+ ID -= 1;
+ PerFileData *F = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ F = Chain[N - I - 1];
+ if (ID < F->LocalNumSLocEntries)
+ break;
+ ID -= F->LocalNumSLocEntries;
+ }
+ assert(F && F->LocalNumSLocEntries > ID && "Chain corrupted");
+
+ F->SLocEntryCursor.JumpToBit(F->SLocOffsets[ID]);
+ return F->SLocEntryCursor;
+}
+
+/// \brief Read in the source location entry with the given ID.
+PCHReader::PCHReadResult PCHReader::ReadSLocEntryRecord(unsigned ID) {
+ if (ID == 0)
+ return Success;
+
+ if (ID > TotalNumSLocEntries) {
+ Error("source location entry ID out-of-range for PCH file");
+ return Failure;
+ }
+
+ llvm::BitstreamCursor &SLocEntryCursor = SLocCursorForID(ID);
+
+ ++NumSLocEntriesRead;
+ unsigned Code = SLocEntryCursor.ReadCode();
+ if (Code == llvm::bitc::END_BLOCK ||
+ Code == llvm::bitc::ENTER_SUBBLOCK ||
+ Code == llvm::bitc::DEFINE_ABBREV) {
+ Error("incorrectly-formatted source location entry in PCH file");
+ return Failure;
+ }
+
+ RecordData Record;
+ const char *BlobStart;
+ unsigned BlobLen;
+ switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
+ default:
+ Error("incorrectly-formatted source location entry in PCH file");
+ return Failure;
+
+ case pch::SM_SLOC_FILE_ENTRY: {
+ std::string Filename(BlobStart, BlobStart + BlobLen);
+ MaybeAddSystemRootToFilename(Filename);
+ const FileEntry *File = FileMgr.getFile(Filename);
+ if (File == 0) {
+ std::string ErrorStr = "could not find file '";
+ ErrorStr += Filename;
+ ErrorStr += "' referenced by PCH file";
+ Error(ErrorStr.c_str());
+ return Failure;
+ }
+
+ if (Record.size() < 10) {
+ Error("source location entry is incorrect");
+ return Failure;
+ }
+
+ if (!DisableValidation &&
+ ((off_t)Record[4] != File->getSize()
+#if !defined(LLVM_ON_WIN32)
+ // In our regression testing, the Windows file system seems to
+ // have inconsistent modification times that sometimes
+ // erroneously trigger this error-handling path.
+ || (time_t)Record[5] != File->getModificationTime()
+#endif
+ )) {
+ Diag(diag::err_fe_pch_file_modified)
+ << Filename;
+ return Failure;
+ }
+
+ FileID FID = SourceMgr.createFileID(File,
+ SourceLocation::getFromRawEncoding(Record[1]),
+ (SrcMgr::CharacteristicKind)Record[2],
+ ID, Record[0]);
+ if (Record[3])
+ const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile())
+ .setHasLineDirectives();
+
+ // Reconstruct header-search information for this file.
+ HeaderFileInfo HFI;
+ HFI.isImport = Record[6];
+ HFI.DirInfo = Record[7];
+ HFI.NumIncludes = Record[8];
+ HFI.ControllingMacroID = Record[9];
+ if (Listener)
+ Listener->ReadHeaderFileInfo(HFI, File->getUID());
+ break;
+ }
+
+ case pch::SM_SLOC_BUFFER_ENTRY: {
+ const char *Name = BlobStart;
+ unsigned Offset = Record[0];
+ unsigned Code = SLocEntryCursor.ReadCode();
+ Record.clear();
+ unsigned RecCode
+ = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
+
+ if (RecCode != pch::SM_SLOC_BUFFER_BLOB) {
+ Error("PCH record has invalid code");
+ return Failure;
+ }
+
+ llvm::MemoryBuffer *Buffer
+ = llvm::MemoryBuffer::getMemBuffer(llvm::StringRef(BlobStart, BlobLen - 1),
+ Name);
+ FileID BufferID = SourceMgr.createFileIDForMemBuffer(Buffer, ID, Offset);
+
+ if (strcmp(Name, "<built-in>") == 0) {
+ PCHPredefinesBlock Block = {
+ BufferID,
+ llvm::StringRef(BlobStart, BlobLen - 1)
+ };
+ PCHPredefinesBuffers.push_back(Block);
+ }
+
+ break;
+ }
+
+ case pch::SM_SLOC_INSTANTIATION_ENTRY: {
+ SourceLocation SpellingLoc
+ = SourceLocation::getFromRawEncoding(Record[1]);
+ SourceMgr.createInstantiationLoc(SpellingLoc,
+ SourceLocation::getFromRawEncoding(Record[2]),
+ SourceLocation::getFromRawEncoding(Record[3]),
+ Record[4],
+ ID,
+ Record[0]);
+ break;
+ }
+ }
+
+ return Success;
+}
+
+/// ReadBlockAbbrevs - Enter a subblock of the specified BlockID with the
+/// specified cursor. Read the abbreviations that are at the top of the block
+/// and then leave the cursor pointing into the block.
+bool PCHReader::ReadBlockAbbrevs(llvm::BitstreamCursor &Cursor,
+ unsigned BlockID) {
+ if (Cursor.EnterSubBlock(BlockID)) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+
+ while (true) {
+ unsigned Code = Cursor.ReadCode();
+
+ // We expect all abbrevs to be at the start of the block.
+ if (Code != llvm::bitc::DEFINE_ABBREV)
+ return false;
+ Cursor.ReadAbbrevRecord();
+ }
+}
+
+void PCHReader::ReadMacroRecord(llvm::BitstreamCursor &Stream, uint64_t Offset){
+ assert(PP && "Forgot to set Preprocessor ?");
+
+ // Keep track of where we are in the stream, then jump back there
+ // after reading this macro.
+ SavedStreamPosition SavedPosition(Stream);
+
+ Stream.JumpToBit(Offset);
+ RecordData Record;
+ llvm::SmallVector<IdentifierInfo*, 16> MacroArgs;
+ MacroInfo *Macro = 0;
+
+ while (true) {
+ unsigned Code = Stream.ReadCode();
+ switch (Code) {
+ case llvm::bitc::END_BLOCK:
+ return;
+
+ case llvm::bitc::ENTER_SUBBLOCK:
+ // No known subblocks, always skip them.
+ Stream.ReadSubBlockID();
+ if (Stream.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return;
+ }
+ continue;
+
+ case llvm::bitc::DEFINE_ABBREV:
+ Stream.ReadAbbrevRecord();
+ continue;
+ default: break;
+ }
+
+ // Read a record.
+ Record.clear();
+ pch::PreprocessorRecordTypes RecType =
+ (pch::PreprocessorRecordTypes)Stream.ReadRecord(Code, Record);
+ switch (RecType) {
+ case pch::PP_MACRO_OBJECT_LIKE:
+ case pch::PP_MACRO_FUNCTION_LIKE: {
+ // If we already have a macro, that means that we've hit the end
+ // of the definition of the macro we were looking for. We're
+ // done.
+ if (Macro)
+ return;
+
+ IdentifierInfo *II = DecodeIdentifierInfo(Record[0]);
+ if (II == 0) {
+ Error("macro must have a name in PCH file");
+ return;
+ }
+ SourceLocation Loc = SourceLocation::getFromRawEncoding(Record[1]);
+ bool isUsed = Record[2];
+
+ MacroInfo *MI = PP->AllocateMacroInfo(Loc);
+ MI->setIsUsed(isUsed);
+ MI->setIsFromPCH();
+
+ unsigned NextIndex = 3;
+ if (RecType == pch::PP_MACRO_FUNCTION_LIKE) {
+ // Decode function-like macro info.
+ bool isC99VarArgs = Record[3];
+ bool isGNUVarArgs = Record[4];
+ MacroArgs.clear();
+ unsigned NumArgs = Record[5];
+ NextIndex = 6 + NumArgs;
+ for (unsigned i = 0; i != NumArgs; ++i)
+ MacroArgs.push_back(DecodeIdentifierInfo(Record[6+i]));
+
+ // Install function-like macro info.
+ MI->setIsFunctionLike();
+ if (isC99VarArgs) MI->setIsC99Varargs();
+ if (isGNUVarArgs) MI->setIsGNUVarargs();
+ MI->setArgumentList(MacroArgs.data(), MacroArgs.size(),
+ PP->getPreprocessorAllocator());
+ }
+
+ // Finally, install the macro.
+ PP->setMacroInfo(II, MI);
+
+ // Remember that we saw this macro last so that we add the tokens that
+ // form its body to it.
+ Macro = MI;
+
+ if (NextIndex + 1 == Record.size() && PP->getPreprocessingRecord()) {
+ // We have a macro definition. Load it now.
+ PP->getPreprocessingRecord()->RegisterMacroDefinition(Macro,
+ getMacroDefinition(Record[NextIndex]));
+ }
+
+ ++NumMacrosRead;
+ break;
+ }
+
+ case pch::PP_TOKEN: {
+ // If we see a TOKEN before a PP_MACRO_*, then the file is
+ // erroneous, just pretend we didn't see this.
+ if (Macro == 0) break;
+
+ Token Tok;
+ Tok.startToken();
+ Tok.setLocation(SourceLocation::getFromRawEncoding(Record[0]));
+ Tok.setLength(Record[1]);
+ if (IdentifierInfo *II = DecodeIdentifierInfo(Record[2]))
+ Tok.setIdentifierInfo(II);
+ Tok.setKind((tok::TokenKind)Record[3]);
+ Tok.setFlag((Token::TokenFlags)Record[4]);
+ Macro->AddTokenToBody(Tok);
+ break;
+ }
+
+ case pch::PP_MACRO_INSTANTIATION: {
+ // If we already have a macro, that means that we've hit the end
+ // of the definition of the macro we were looking for. We're
+ // done.
+ if (Macro)
+ return;
+
+ if (!PP->getPreprocessingRecord()) {
+ Error("missing preprocessing record in PCH file");
+ return;
+ }
+
+ PreprocessingRecord &PPRec = *PP->getPreprocessingRecord();
+ if (PPRec.getPreprocessedEntity(Record[0]))
+ return;
+
+ MacroInstantiation *MI
+ = new (PPRec) MacroInstantiation(DecodeIdentifierInfo(Record[3]),
+ SourceRange(
+ SourceLocation::getFromRawEncoding(Record[1]),
+ SourceLocation::getFromRawEncoding(Record[2])),
+ getMacroDefinition(Record[4]));
+ PPRec.SetPreallocatedEntity(Record[0], MI);
+ return;
+ }
+
+ case pch::PP_MACRO_DEFINITION: {
+ // If we already have a macro, that means that we've hit the end
+ // of the definition of the macro we were looking for. We're
+ // done.
+ if (Macro)
+ return;
+
+ if (!PP->getPreprocessingRecord()) {
+ Error("missing preprocessing record in PCH file");
+ return;
+ }
+
+ PreprocessingRecord &PPRec = *PP->getPreprocessingRecord();
+ if (PPRec.getPreprocessedEntity(Record[0]))
+ return;
+
+ if (Record[1] >= MacroDefinitionsLoaded.size()) {
+ Error("out-of-bounds macro definition record");
+ return;
+ }
+
+ MacroDefinition *MD
+ = new (PPRec) MacroDefinition(DecodeIdentifierInfo(Record[4]),
+ SourceLocation::getFromRawEncoding(Record[5]),
+ SourceRange(
+ SourceLocation::getFromRawEncoding(Record[2]),
+ SourceLocation::getFromRawEncoding(Record[3])));
+ PPRec.SetPreallocatedEntity(Record[0], MD);
+ MacroDefinitionsLoaded[Record[1]] = MD;
+ return;
+ }
+ }
+ }
+}
+
+void PCHReader::ReadDefinedMacros() {
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ llvm::BitstreamCursor &MacroCursor = Chain[N - I - 1]->MacroCursor;
+
+ // If there was no preprocessor block, skip this file.
+ if (!MacroCursor.getBitStreamReader())
+ continue;
+
+ llvm::BitstreamCursor Cursor = MacroCursor;
+ if (Cursor.EnterSubBlock(pch::PREPROCESSOR_BLOCK_ID)) {
+ Error("malformed preprocessor block record in PCH file");
+ return;
+ }
+
+ RecordData Record;
+ while (true) {
+ unsigned Code = Cursor.ReadCode();
+ if (Code == llvm::bitc::END_BLOCK) {
+ if (Cursor.ReadBlockEnd()) {
+ Error("error at end of preprocessor block in PCH file");
+ return;
+ }
+ break;
+ }
+
+ if (Code == llvm::bitc::ENTER_SUBBLOCK) {
+ // No known subblocks, always skip them.
+ Cursor.ReadSubBlockID();
+ if (Cursor.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return;
+ }
+ continue;
+ }
+
+ if (Code == llvm::bitc::DEFINE_ABBREV) {
+ Cursor.ReadAbbrevRecord();
+ continue;
+ }
+
+ // Read a record.
+ const char *BlobStart;
+ unsigned BlobLen;
+ Record.clear();
+ switch (Cursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
+ default: // Default behavior: ignore.
+ break;
+
+ case pch::PP_MACRO_OBJECT_LIKE:
+ case pch::PP_MACRO_FUNCTION_LIKE:
+ DecodeIdentifierInfo(Record[0]);
+ break;
+
+ case pch::PP_TOKEN:
+ // Ignore tokens.
+ break;
+
+ case pch::PP_MACRO_INSTANTIATION:
+ case pch::PP_MACRO_DEFINITION:
+ // Read the macro record.
+ ReadMacroRecord(Chain[N - I - 1]->Stream, Cursor.GetCurrentBitNo());
+ break;
+ }
+ }
+ }
+}
+
+MacroDefinition *PCHReader::getMacroDefinition(pch::IdentID ID) {
+ if (ID == 0 || ID >= MacroDefinitionsLoaded.size())
+ return 0;
+
+ if (!MacroDefinitionsLoaded[ID]) {
+ unsigned Index = ID;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ PerFileData &F = *Chain[N - I - 1];
+ if (Index < F.LocalNumMacroDefinitions) {
+ ReadMacroRecord(F.Stream, F.MacroDefinitionOffsets[Index]);
+ break;
+ }
+ Index -= F.LocalNumMacroDefinitions;
+ }
+ assert(MacroDefinitionsLoaded[ID] && "Broken chain");
+ }
+
+ return MacroDefinitionsLoaded[ID];
+}
+
+/// \brief If we are loading a relocatable PCH file, and the filename is
+/// not an absolute path, add the system root to the beginning of the file
+/// name.
+void PCHReader::MaybeAddSystemRootToFilename(std::string &Filename) {
+ // If this is not a relocatable PCH file, there's nothing to do.
+ if (!RelocatablePCH)
+ return;
+
+ if (Filename.empty() || llvm::sys::Path(Filename).isAbsolute())
+ return;
+
+ if (isysroot == 0) {
+ // If no system root was given, default to '/'
+ Filename.insert(Filename.begin(), '/');
+ return;
+ }
+
+ unsigned Length = strlen(isysroot);
+ if (isysroot[Length - 1] != '/')
+ Filename.insert(Filename.begin(), '/');
+
+ Filename.insert(Filename.begin(), isysroot, isysroot + Length);
+}
+
+PCHReader::PCHReadResult
+PCHReader::ReadPCHBlock(PerFileData &F) {
+ llvm::BitstreamCursor &Stream = F.Stream;
+
+ if (Stream.EnterSubBlock(pch::PCH_BLOCK_ID)) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+
+ // Read all of the records and blocks for the PCH file.
+ RecordData Record;
+ bool First = true;
+ while (!Stream.AtEndOfStream()) {
+ unsigned Code = Stream.ReadCode();
+ if (Code == llvm::bitc::END_BLOCK) {
+ if (Stream.ReadBlockEnd()) {
+ Error("error at end of module block in PCH file");
+ return Failure;
+ }
+
+ return Success;
+ }
+
+ if (Code == llvm::bitc::ENTER_SUBBLOCK) {
+ switch (Stream.ReadSubBlockID()) {
+ case pch::DECLTYPES_BLOCK_ID:
+ // We lazily load the decls block, but we want to set up the
+ // DeclsCursor cursor to point into it. Clone our current bitcode
+ // cursor to it, enter the block and read the abbrevs in that block.
+ // With the main cursor, we just skip over it.
+ F.DeclsCursor = Stream;
+ if (Stream.SkipBlock() || // Skip with the main cursor.
+ // Read the abbrevs.
+ ReadBlockAbbrevs(F.DeclsCursor, pch::DECLTYPES_BLOCK_ID)) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+ break;
+
+ case pch::PREPROCESSOR_BLOCK_ID:
+ F.MacroCursor = Stream;
+ if (PP)
+ PP->setExternalSource(this);
+
+ if (Stream.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+ break;
+
+ case pch::SOURCE_MANAGER_BLOCK_ID:
+ switch (ReadSourceManagerBlock(F)) {
+ case Success:
+ break;
+
+ case Failure:
+ Error("malformed source manager block in PCH file");
+ return Failure;
+
+ case IgnorePCH:
+ return IgnorePCH;
+ }
+ break;
+ }
+ First = false;
+ continue;
+ }
+
+ if (Code == llvm::bitc::DEFINE_ABBREV) {
+ Stream.ReadAbbrevRecord();
+ continue;
+ }
+
+ // Read and process a record.
+ Record.clear();
+ const char *BlobStart = 0;
+ unsigned BlobLen = 0;
+ switch ((pch::PCHRecordTypes)Stream.ReadRecord(Code, Record,
+ &BlobStart, &BlobLen)) {
+ default: // Default behavior: ignore.
+ break;
+
+ case pch::METADATA: {
+ if (Record[0] != pch::VERSION_MAJOR && !DisableValidation) {
+ Diag(Record[0] < pch::VERSION_MAJOR? diag::warn_pch_version_too_old
+ : diag::warn_pch_version_too_new);
+ return IgnorePCH;
+ }
+
+ RelocatablePCH = Record[4];
+ if (Listener) {
+ std::string TargetTriple(BlobStart, BlobLen);
+ if (Listener->ReadTargetTriple(TargetTriple))
+ return IgnorePCH;
+ }
+ break;
+ }
+
+ case pch::CHAINED_METADATA: {
+ if (!First) {
+ Error("CHAINED_METADATA is not first record in block");
+ return Failure;
+ }
+ if (Record[0] != pch::VERSION_MAJOR && !DisableValidation) {
+ Diag(Record[0] < pch::VERSION_MAJOR? diag::warn_pch_version_too_old
+ : diag::warn_pch_version_too_new);
+ return IgnorePCH;
+ }
+
+ // Load the chained file.
+ switch(ReadPCHCore(llvm::StringRef(BlobStart, BlobLen))) {
+ case Failure: return Failure;
+ // If we have to ignore the dependency, we'll have to ignore this too.
+ case IgnorePCH: return IgnorePCH;
+ case Success: break;
+ }
+ break;
+ }
+
+ case pch::TYPE_OFFSET:
+ if (F.LocalNumTypes != 0) {
+ Error("duplicate TYPE_OFFSET record in PCH file");
+ return Failure;
+ }
+ F.TypeOffsets = (const uint32_t *)BlobStart;
+ F.LocalNumTypes = Record[0];
+ break;
+
+ case pch::DECL_OFFSET:
+ if (F.LocalNumDecls != 0) {
+ Error("duplicate DECL_OFFSET record in PCH file");
+ return Failure;
+ }
+ F.DeclOffsets = (const uint32_t *)BlobStart;
+ F.LocalNumDecls = Record[0];
+ break;
+
+ case pch::TU_UPDATE_LEXICAL: {
+ DeclContextInfo Info = {
+ /* No visible information */ 0, 0,
+ reinterpret_cast<const pch::DeclID *>(BlobStart),
+ BlobLen / sizeof(pch::DeclID)
+ };
+ DeclContextOffsets[Context->getTranslationUnitDecl()].push_back(Info);
+ break;
+ }
+
+ case pch::REDECLS_UPDATE_LATEST: {
+ assert(Record.size() % 2 == 0 && "Expected pairs of DeclIDs");
+ for (unsigned i = 0, e = Record.size(); i < e; i += 2) {
+ pch::DeclID First = Record[i], Latest = Record[i+1];
+ assert((FirstLatestDeclIDs.find(First) == FirstLatestDeclIDs.end() ||
+ Latest > FirstLatestDeclIDs[First]) &&
+ "The new latest is supposed to come after the previous latest");
+ FirstLatestDeclIDs[First] = Latest;
+ }
+ break;
+ }
+
+ case pch::LANGUAGE_OPTIONS:
+ if (ParseLanguageOptions(Record) && !DisableValidation)
+ return IgnorePCH;
+ break;
+
+ case pch::IDENTIFIER_TABLE:
+ F.IdentifierTableData = BlobStart;
+ if (Record[0]) {
+ F.IdentifierLookupTable
+ = PCHIdentifierLookupTable::Create(
+ (const unsigned char *)F.IdentifierTableData + Record[0],
+ (const unsigned char *)F.IdentifierTableData,
+ PCHIdentifierLookupTrait(*this, F.Stream));
+ if (PP)
+ PP->getIdentifierTable().setExternalIdentifierLookup(this);
+ }
+ break;
+
+ case pch::IDENTIFIER_OFFSET:
+ if (F.LocalNumIdentifiers != 0) {
+ Error("duplicate IDENTIFIER_OFFSET record in PCH file");
+ return Failure;
+ }
+ F.IdentifierOffsets = (const uint32_t *)BlobStart;
+ F.LocalNumIdentifiers = Record[0];
+ break;
+
+ case pch::EXTERNAL_DEFINITIONS:
+ // Optimization for the first block.
+ if (ExternalDefinitions.empty())
+ ExternalDefinitions.swap(Record);
+ else
+ ExternalDefinitions.insert(ExternalDefinitions.end(),
+ Record.begin(), Record.end());
+ break;
+
+ case pch::SPECIAL_TYPES:
+ // Optimization for the first block
+ if (SpecialTypes.empty())
+ SpecialTypes.swap(Record);
+ else
+ SpecialTypes.insert(SpecialTypes.end(), Record.begin(), Record.end());
+ break;
+
+ case pch::STATISTICS:
+ TotalNumStatements += Record[0];
+ TotalNumMacros += Record[1];
+ TotalLexicalDeclContexts += Record[2];
+ TotalVisibleDeclContexts += Record[3];
+ break;
+
+ case pch::TENTATIVE_DEFINITIONS:
+ // Optimization for the first block.
+ if (TentativeDefinitions.empty())
+ TentativeDefinitions.swap(Record);
+ else
+ TentativeDefinitions.insert(TentativeDefinitions.end(),
+ Record.begin(), Record.end());
+ break;
+
+ case pch::UNUSED_FILESCOPED_DECLS:
+ // Optimization for the first block.
+ if (UnusedFileScopedDecls.empty())
+ UnusedFileScopedDecls.swap(Record);
+ else
+ UnusedFileScopedDecls.insert(UnusedFileScopedDecls.end(),
+ Record.begin(), Record.end());
+ break;
+
+ case pch::WEAK_UNDECLARED_IDENTIFIERS:
+ // Later blocks overwrite earlier ones.
+ WeakUndeclaredIdentifiers.swap(Record);
+ break;
+
+ case pch::LOCALLY_SCOPED_EXTERNAL_DECLS:
+ // Optimization for the first block.
+ if (LocallyScopedExternalDecls.empty())
+ LocallyScopedExternalDecls.swap(Record);
+ else
+ LocallyScopedExternalDecls.insert(LocallyScopedExternalDecls.end(),
+ Record.begin(), Record.end());
+ break;
+
+ case pch::SELECTOR_OFFSETS:
+ F.SelectorOffsets = (const uint32_t *)BlobStart;
+ F.LocalNumSelectors = Record[0];
+ break;
+
+ case pch::METHOD_POOL:
+ F.SelectorLookupTableData = (const unsigned char *)BlobStart;
+ if (Record[0])
+ F.SelectorLookupTable
+ = PCHSelectorLookupTable::Create(
+ F.SelectorLookupTableData + Record[0],
+ F.SelectorLookupTableData,
+ PCHSelectorLookupTrait(*this));
+ TotalNumMethodPoolEntries += Record[1];
+ break;
+
+ case pch::REFERENCED_SELECTOR_POOL: {
+ ReferencedSelectorsData.insert(ReferencedSelectorsData.end(),
+ Record.begin(), Record.end());
+ break;
+ }
+
+ case pch::PP_COUNTER_VALUE:
+ if (!Record.empty() && Listener)
+ Listener->ReadCounter(Record[0]);
+ break;
+
+ case pch::SOURCE_LOCATION_OFFSETS:
+ F.SLocOffsets = (const uint32_t *)BlobStart;
+ F.LocalNumSLocEntries = Record[0];
+ // We cannot delay this until all PCHs are loaded, because then source
+ // location preloads would also have to be delayed.
+ TotalNumSLocEntries += F.LocalNumSLocEntries;
+ SourceMgr.PreallocateSLocEntries(this, TotalNumSLocEntries, Record[1]);
+ break;
+
+ case pch::SOURCE_LOCATION_PRELOADS:
+ for (unsigned I = 0, N = Record.size(); I != N; ++I) {
+ PCHReadResult Result = ReadSLocEntryRecord(Record[I]);
+ if (Result != Success)
+ return Result;
+ }
+ break;
+
+ case pch::STAT_CACHE: {
+ PCHStatCache *MyStatCache =
+ new PCHStatCache((const unsigned char *)BlobStart + Record[0],
+ (const unsigned char *)BlobStart,
+ NumStatHits, NumStatMisses);
+ FileMgr.addStatCache(MyStatCache);
+ F.StatCache = MyStatCache;
+ break;
+ }
+
+ case pch::EXT_VECTOR_DECLS:
+ // Optimization for the first block.
+ if (ExtVectorDecls.empty())
+ ExtVectorDecls.swap(Record);
+ else
+ ExtVectorDecls.insert(ExtVectorDecls.end(),
+ Record.begin(), Record.end());
+ break;
+
+ case pch::VTABLE_USES:
+ // Later tables overwrite earlier ones.
+ VTableUses.swap(Record);
+ break;
+
+ case pch::DYNAMIC_CLASSES:
+ // Optimization for the first block.
+ if (DynamicClasses.empty())
+ DynamicClasses.swap(Record);
+ else
+ DynamicClasses.insert(DynamicClasses.end(),
+ Record.begin(), Record.end());
+ break;
+
+ case pch::PENDING_IMPLICIT_INSTANTIATIONS:
+ // Optimization for the first block.
+ if (PendingImplicitInstantiations.empty())
+ PendingImplicitInstantiations.swap(Record);
+ else
+ PendingImplicitInstantiations.insert(
+ PendingImplicitInstantiations.end(), Record.begin(), Record.end());
+ break;
+
+ case pch::SEMA_DECL_REFS:
+ // Later tables overwrite earlier ones.
+ SemaDeclRefs.swap(Record);
+ break;
+
+ case pch::ORIGINAL_FILE_NAME:
+ // The primary PCH will be the last to get here, so it will be the one
+ // that's used.
+ ActualOriginalFileName.assign(BlobStart, BlobLen);
+ OriginalFileName = ActualOriginalFileName;
+ MaybeAddSystemRootToFilename(OriginalFileName);
+ break;
+
+ case pch::VERSION_CONTROL_BRANCH_REVISION: {
+ const std::string &CurBranch = getClangFullRepositoryVersion();
+ llvm::StringRef PCHBranch(BlobStart, BlobLen);
+ if (llvm::StringRef(CurBranch) != PCHBranch && !DisableValidation) {
+ Diag(diag::warn_pch_different_branch) << PCHBranch << CurBranch;
+ return IgnorePCH;
+ }
+ break;
+ }
+
+ case pch::MACRO_DEFINITION_OFFSETS:
+ F.MacroDefinitionOffsets = (const uint32_t *)BlobStart;
+ F.NumPreallocatedPreprocessingEntities = Record[0];
+ F.LocalNumMacroDefinitions = Record[1];
+ break;
+
+ case pch::DECL_REPLACEMENTS: {
+ if (Record.size() % 2 != 0) {
+ Error("invalid DECL_REPLACEMENTS block in PCH file");
+ return Failure;
+ }
+ for (unsigned I = 0, N = Record.size(); I != N; I += 2)
+ ReplacedDecls[static_cast<pch::DeclID>(Record[I])] =
+ std::make_pair(&F, Record[I+1]);
+ break;
+ }
+ }
+ First = false;
+ }
+ Error("premature end of bitstream in PCH file");
+ return Failure;
+}
+
+PCHReader::PCHReadResult PCHReader::ReadPCH(const std::string &FileName) {
+ switch(ReadPCHCore(FileName)) {
+ case Failure: return Failure;
+ case IgnorePCH: return IgnorePCH;
+ case Success: break;
+ }
+
+ // Here comes stuff that we only do once the entire chain is loaded.
+
+ // Allocate space for loaded identifiers, decls and types.
+ unsigned TotalNumIdentifiers = 0, TotalNumTypes = 0, TotalNumDecls = 0,
+ TotalNumPreallocatedPreprocessingEntities = 0, TotalNumMacroDefs = 0,
+ TotalNumSelectors = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ TotalNumIdentifiers += Chain[I]->LocalNumIdentifiers;
+ TotalNumTypes += Chain[I]->LocalNumTypes;
+ TotalNumDecls += Chain[I]->LocalNumDecls;
+ TotalNumPreallocatedPreprocessingEntities +=
+ Chain[I]->NumPreallocatedPreprocessingEntities;
+ TotalNumMacroDefs += Chain[I]->LocalNumMacroDefinitions;
+ TotalNumSelectors += Chain[I]->LocalNumSelectors;
+ }
+ IdentifiersLoaded.resize(TotalNumIdentifiers);
+ TypesLoaded.resize(TotalNumTypes);
+ DeclsLoaded.resize(TotalNumDecls);
+ MacroDefinitionsLoaded.resize(TotalNumMacroDefs);
+ if (PP) {
+ if (TotalNumIdentifiers > 0)
+ PP->getHeaderSearchInfo().SetExternalLookup(this);
+ if (TotalNumPreallocatedPreprocessingEntities > 0) {
+ if (!PP->getPreprocessingRecord())
+ PP->createPreprocessingRecord();
+ PP->getPreprocessingRecord()->SetExternalSource(*this,
+ TotalNumPreallocatedPreprocessingEntities);
+ }
+ }
+ SelectorsLoaded.resize(TotalNumSelectors);
+
+ // Check the predefines buffers.
+ if (!DisableValidation && CheckPredefinesBuffers())
+ return IgnorePCH;
+
+ if (PP) {
+ // Initialization of keywords and pragmas occurs before the
+ // PCH file is read, so there may be some identifiers that were
+ // loaded into the IdentifierTable before we intercepted the
+ // creation of identifiers. Iterate through the list of known
+ // identifiers and determine whether we have to establish
+ // preprocessor definitions or top-level identifier declaration
+ // chains for those identifiers.
+ //
+ // We copy the IdentifierInfo pointers to a small vector first,
+ // since de-serializing declarations or macro definitions can add
+ // new entries into the identifier table, invalidating the
+ // iterators.
+ llvm::SmallVector<IdentifierInfo *, 128> Identifiers;
+ for (IdentifierTable::iterator Id = PP->getIdentifierTable().begin(),
+ IdEnd = PP->getIdentifierTable().end();
+ Id != IdEnd; ++Id)
+ Identifiers.push_back(Id->second);
+ // We need to search the tables in all files.
+ for (unsigned J = 0, M = Chain.size(); J != M; ++J) {
+ PCHIdentifierLookupTable *IdTable
+ = (PCHIdentifierLookupTable *)Chain[J]->IdentifierLookupTable;
+ // Not all PCH files necessarily have identifier tables, only the useful
+ // ones.
+ if (!IdTable)
+ continue;
+ for (unsigned I = 0, N = Identifiers.size(); I != N; ++I) {
+ IdentifierInfo *II = Identifiers[I];
+ // Look in the on-disk hash tables for an entry for this identifier
+ PCHIdentifierLookupTrait Info(*this, Chain[J]->Stream, II);
+ std::pair<const char*,unsigned> Key(II->getNameStart(),II->getLength());
+ PCHIdentifierLookupTable::iterator Pos = IdTable->find(Key, &Info);
+ if (Pos == IdTable->end())
+ continue;
+
+ // Dereferencing the iterator has the effect of populating the
+ // IdentifierInfo node with the various declarations it needs.
+ (void)*Pos;
+ }
+ }
+ }
+
+ if (Context)
+ InitializeContext(*Context);
+
+ return Success;
+}
+
+PCHReader::PCHReadResult PCHReader::ReadPCHCore(llvm::StringRef FileName) {
+ Chain.push_back(new PerFileData());
+ PerFileData &F = *Chain.back();
+
+ // Set the PCH file name.
+ F.FileName = FileName;
+
+ // Open the PCH file.
+ //
+ // FIXME: This shouldn't be here, we should just take a raw_ostream.
+ std::string ErrStr;
+ F.Buffer.reset(llvm::MemoryBuffer::getFileOrSTDIN(FileName, &ErrStr));
+ if (!F.Buffer) {
+ Error(ErrStr.c_str());
+ return IgnorePCH;
+ }
+
+ // Initialize the stream
+ F.StreamFile.init((const unsigned char *)F.Buffer->getBufferStart(),
+ (const unsigned char *)F.Buffer->getBufferEnd());
+ llvm::BitstreamCursor &Stream = F.Stream;
+ Stream.init(F.StreamFile);
+ F.SizeInBits = F.Buffer->getBufferSize() * 8;
+
+ // Sniff for the signature.
+ if (Stream.Read(8) != 'C' ||
+ Stream.Read(8) != 'P' ||
+ Stream.Read(8) != 'C' ||
+ Stream.Read(8) != 'H') {
+ Diag(diag::err_not_a_pch_file) << FileName;
+ return Failure;
+ }
+
+ while (!Stream.AtEndOfStream()) {
+ unsigned Code = Stream.ReadCode();
+
+ if (Code != llvm::bitc::ENTER_SUBBLOCK) {
+ Error("invalid record at top-level of PCH file");
+ return Failure;
+ }
+
+ unsigned BlockID = Stream.ReadSubBlockID();
+
+ // We only know the PCH subblock ID.
+ switch (BlockID) {
+ case llvm::bitc::BLOCKINFO_BLOCK_ID:
+ if (Stream.ReadBlockInfoBlock()) {
+ Error("malformed BlockInfoBlock in PCH file");
+ return Failure;
+ }
+ break;
+ case pch::PCH_BLOCK_ID:
+ switch (ReadPCHBlock(F)) {
+ case Success:
+ break;
+
+ case Failure:
+ return Failure;
+
+ case IgnorePCH:
+ // FIXME: We could consider reading through to the end of this
+ // PCH block, skipping subblocks, to see if there are other
+ // PCH blocks elsewhere.
+
+ // Clear out any preallocated source location entries, so that
+ // the source manager does not try to resolve them later.
+ SourceMgr.ClearPreallocatedSLocEntries();
+
+ // Remove the stat cache.
+ if (F.StatCache)
+ FileMgr.removeStatCache((PCHStatCache*)F.StatCache);
+
+ return IgnorePCH;
+ }
+ break;
+ default:
+ if (Stream.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return Failure;
+ }
+ break;
+ }
+ }
+
+ return Success;
+}
+
+void PCHReader::setPreprocessor(Preprocessor &pp) {
+ PP = &pp;
+
+ unsigned TotalNum = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I)
+ TotalNum += Chain[I]->NumPreallocatedPreprocessingEntities;
+ if (TotalNum) {
+ if (!PP->getPreprocessingRecord())
+ PP->createPreprocessingRecord();
+ PP->getPreprocessingRecord()->SetExternalSource(*this, TotalNum);
+ }
+}
+
+void PCHReader::InitializeContext(ASTContext &Ctx) {
+ Context = &Ctx;
+ assert(Context && "Passed null context!");
+
+ assert(PP && "Forgot to set Preprocessor ?");
+ PP->getIdentifierTable().setExternalIdentifierLookup(this);
+ PP->getHeaderSearchInfo().SetExternalLookup(this);
+ PP->setExternalSource(this);
+
+ // Load the translation unit declaration
+ GetTranslationUnitDecl();
+
+ // Load the special types.
+ Context->setBuiltinVaListType(
+ GetType(SpecialTypes[pch::SPECIAL_TYPE_BUILTIN_VA_LIST]));
+ if (unsigned Id = SpecialTypes[pch::SPECIAL_TYPE_OBJC_ID])
+ Context->setObjCIdType(GetType(Id));
+ if (unsigned Sel = SpecialTypes[pch::SPECIAL_TYPE_OBJC_SELECTOR])
+ Context->setObjCSelType(GetType(Sel));
+ if (unsigned Proto = SpecialTypes[pch::SPECIAL_TYPE_OBJC_PROTOCOL])
+ Context->setObjCProtoType(GetType(Proto));
+ if (unsigned Class = SpecialTypes[pch::SPECIAL_TYPE_OBJC_CLASS])
+ Context->setObjCClassType(GetType(Class));
+
+ if (unsigned String = SpecialTypes[pch::SPECIAL_TYPE_CF_CONSTANT_STRING])
+ Context->setCFConstantStringType(GetType(String));
+ if (unsigned FastEnum
+ = SpecialTypes[pch::SPECIAL_TYPE_OBJC_FAST_ENUMERATION_STATE])
+ Context->setObjCFastEnumerationStateType(GetType(FastEnum));
+ if (unsigned File = SpecialTypes[pch::SPECIAL_TYPE_FILE]) {
+ QualType FileType = GetType(File);
+ if (FileType.isNull()) {
+ Error("FILE type is NULL");
+ return;
+ }
+ if (const TypedefType *Typedef = FileType->getAs<TypedefType>())
+ Context->setFILEDecl(Typedef->getDecl());
+ else {
+ const TagType *Tag = FileType->getAs<TagType>();
+ if (!Tag) {
+ Error("Invalid FILE type in PCH file");
+ return;
+ }
+ Context->setFILEDecl(Tag->getDecl());
+ }
+ }
+ if (unsigned Jmp_buf = SpecialTypes[pch::SPECIAL_TYPE_jmp_buf]) {
+ QualType Jmp_bufType = GetType(Jmp_buf);
+ if (Jmp_bufType.isNull()) {
+ Error("jmp_bug type is NULL");
+ return;
+ }
+ if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>())
+ Context->setjmp_bufDecl(Typedef->getDecl());
+ else {
+ const TagType *Tag = Jmp_bufType->getAs<TagType>();
+ if (!Tag) {
+ Error("Invalid jmp_bug type in PCH file");
+ return;
+ }
+ Context->setjmp_bufDecl(Tag->getDecl());
+ }
+ }
+ if (unsigned Sigjmp_buf = SpecialTypes[pch::SPECIAL_TYPE_sigjmp_buf]) {
+ QualType Sigjmp_bufType = GetType(Sigjmp_buf);
+ if (Sigjmp_bufType.isNull()) {
+ Error("sigjmp_buf type is NULL");
+ return;
+ }
+ if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>())
+ Context->setsigjmp_bufDecl(Typedef->getDecl());
+ else {
+ const TagType *Tag = Sigjmp_bufType->getAs<TagType>();
+ assert(Tag && "Invalid sigjmp_buf type in PCH file");
+ Context->setsigjmp_bufDecl(Tag->getDecl());
+ }
+ }
+ if (unsigned ObjCIdRedef
+ = SpecialTypes[pch::SPECIAL_TYPE_OBJC_ID_REDEFINITION])
+ Context->ObjCIdRedefinitionType = GetType(ObjCIdRedef);
+ if (unsigned ObjCClassRedef
+ = SpecialTypes[pch::SPECIAL_TYPE_OBJC_CLASS_REDEFINITION])
+ Context->ObjCClassRedefinitionType = GetType(ObjCClassRedef);
+ if (unsigned String = SpecialTypes[pch::SPECIAL_TYPE_BLOCK_DESCRIPTOR])
+ Context->setBlockDescriptorType(GetType(String));
+ if (unsigned String
+ = SpecialTypes[pch::SPECIAL_TYPE_BLOCK_EXTENDED_DESCRIPTOR])
+ Context->setBlockDescriptorExtendedType(GetType(String));
+ if (unsigned ObjCSelRedef
+ = SpecialTypes[pch::SPECIAL_TYPE_OBJC_SEL_REDEFINITION])
+ Context->ObjCSelRedefinitionType = GetType(ObjCSelRedef);
+ if (unsigned String = SpecialTypes[pch::SPECIAL_TYPE_NS_CONSTANT_STRING])
+ Context->setNSConstantStringType(GetType(String));
+
+ if (SpecialTypes[pch::SPECIAL_TYPE_INT128_INSTALLED])
+ Context->setInt128Installed();
+}
+
+/// \brief Retrieve the name of the original source file name
+/// directly from the PCH file, without actually loading the PCH
+/// file.
+std::string PCHReader::getOriginalSourceFile(const std::string &PCHFileName,
+ Diagnostic &Diags) {
+ // Open the PCH file.
+ std::string ErrStr;
+ llvm::OwningPtr<llvm::MemoryBuffer> Buffer;
+ Buffer.reset(llvm::MemoryBuffer::getFile(PCHFileName.c_str(), &ErrStr));
+ if (!Buffer) {
+ Diags.Report(diag::err_fe_unable_to_read_pch_file) << ErrStr;
+ return std::string();
+ }
+
+ // Initialize the stream
+ llvm::BitstreamReader StreamFile;
+ llvm::BitstreamCursor Stream;
+ StreamFile.init((const unsigned char *)Buffer->getBufferStart(),
+ (const unsigned char *)Buffer->getBufferEnd());
+ Stream.init(StreamFile);
+
+ // Sniff for the signature.
+ if (Stream.Read(8) != 'C' ||
+ Stream.Read(8) != 'P' ||
+ Stream.Read(8) != 'C' ||
+ Stream.Read(8) != 'H') {
+ Diags.Report(diag::err_fe_not_a_pch_file) << PCHFileName;
+ return std::string();
+ }
+
+ RecordData Record;
+ while (!Stream.AtEndOfStream()) {
+ unsigned Code = Stream.ReadCode();
+
+ if (Code == llvm::bitc::ENTER_SUBBLOCK) {
+ unsigned BlockID = Stream.ReadSubBlockID();
+
+ // We only know the PCH subblock ID.
+ switch (BlockID) {
+ case pch::PCH_BLOCK_ID:
+ if (Stream.EnterSubBlock(pch::PCH_BLOCK_ID)) {
+ Diags.Report(diag::err_fe_pch_malformed_block) << PCHFileName;
+ return std::string();
+ }
+ break;
+
+ default:
+ if (Stream.SkipBlock()) {
+ Diags.Report(diag::err_fe_pch_malformed_block) << PCHFileName;
+ return std::string();
+ }
+ break;
+ }
+ continue;
+ }
+
+ if (Code == llvm::bitc::END_BLOCK) {
+ if (Stream.ReadBlockEnd()) {
+ Diags.Report(diag::err_fe_pch_error_at_end_block) << PCHFileName;
+ return std::string();
+ }
+ continue;
+ }
+
+ if (Code == llvm::bitc::DEFINE_ABBREV) {
+ Stream.ReadAbbrevRecord();
+ continue;
+ }
+
+ Record.clear();
+ const char *BlobStart = 0;
+ unsigned BlobLen = 0;
+ if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen)
+ == pch::ORIGINAL_FILE_NAME)
+ return std::string(BlobStart, BlobLen);
+ }
+
+ return std::string();
+}
+
+/// \brief Parse the record that corresponds to a LangOptions data
+/// structure.
+///
+/// This routine compares the language options used to generate the
+/// PCH file against the language options set for the current
+/// compilation. For each option, we classify differences between the
+/// two compiler states as either "benign" or "important". Benign
+/// differences don't matter, and we accept them without complaint
+/// (and without modifying the language options). Differences between
+/// the states for important options cause the PCH file to be
+/// unusable, so we emit a warning and return true to indicate that
+/// there was an error.
+///
+/// \returns true if the PCH file is unacceptable, false otherwise.
+bool PCHReader::ParseLanguageOptions(
+ const llvm::SmallVectorImpl<uint64_t> &Record) {
+ if (Listener) {
+ LangOptions LangOpts;
+
+ #define PARSE_LANGOPT(Option) \
+ LangOpts.Option = Record[Idx]; \
+ ++Idx
+
+ unsigned Idx = 0;
+ PARSE_LANGOPT(Trigraphs);
+ PARSE_LANGOPT(BCPLComment);
+ PARSE_LANGOPT(DollarIdents);
+ PARSE_LANGOPT(AsmPreprocessor);
+ PARSE_LANGOPT(GNUMode);
+ PARSE_LANGOPT(GNUKeywords);
+ PARSE_LANGOPT(ImplicitInt);
+ PARSE_LANGOPT(Digraphs);
+ PARSE_LANGOPT(HexFloats);
+ PARSE_LANGOPT(C99);
+ PARSE_LANGOPT(Microsoft);
+ PARSE_LANGOPT(CPlusPlus);
+ PARSE_LANGOPT(CPlusPlus0x);
+ PARSE_LANGOPT(CXXOperatorNames);
+ PARSE_LANGOPT(ObjC1);
+ PARSE_LANGOPT(ObjC2);
+ PARSE_LANGOPT(ObjCNonFragileABI);
+ PARSE_LANGOPT(ObjCNonFragileABI2);
+ PARSE_LANGOPT(NoConstantCFStrings);
+ PARSE_LANGOPT(PascalStrings);
+ PARSE_LANGOPT(WritableStrings);
+ PARSE_LANGOPT(LaxVectorConversions);
+ PARSE_LANGOPT(AltiVec);
+ PARSE_LANGOPT(Exceptions);
+ PARSE_LANGOPT(SjLjExceptions);
+ PARSE_LANGOPT(NeXTRuntime);
+ PARSE_LANGOPT(Freestanding);
+ PARSE_LANGOPT(NoBuiltin);
+ PARSE_LANGOPT(ThreadsafeStatics);
+ PARSE_LANGOPT(POSIXThreads);
+ PARSE_LANGOPT(Blocks);
+ PARSE_LANGOPT(EmitAllDecls);
+ PARSE_LANGOPT(MathErrno);
+ LangOpts.setSignedOverflowBehavior((LangOptions::SignedOverflowBehaviorTy)
+ Record[Idx++]);
+ PARSE_LANGOPT(HeinousExtensions);
+ PARSE_LANGOPT(Optimize);
+ PARSE_LANGOPT(OptimizeSize);
+ PARSE_LANGOPT(Static);
+ PARSE_LANGOPT(PICLevel);
+ PARSE_LANGOPT(GNUInline);
+ PARSE_LANGOPT(NoInline);
+ PARSE_LANGOPT(AccessControl);
+ PARSE_LANGOPT(CharIsSigned);
+ PARSE_LANGOPT(ShortWChar);
+ LangOpts.setGCMode((LangOptions::GCMode)Record[Idx++]);
+ LangOpts.setVisibilityMode((LangOptions::VisibilityMode)Record[Idx++]);
+ LangOpts.setStackProtectorMode((LangOptions::StackProtectorMode)
+ Record[Idx++]);
+ PARSE_LANGOPT(InstantiationDepth);
+ PARSE_LANGOPT(OpenCL);
+ PARSE_LANGOPT(CatchUndefined);
+ // FIXME: Missing ElideConstructors?!
+ #undef PARSE_LANGOPT
+
+ return Listener->ReadLanguageOptions(LangOpts);
+ }
+
+ return false;
+}
+
+void PCHReader::ReadPreprocessedEntities() {
+ ReadDefinedMacros();
+}
+
+/// \brief Get the correct cursor and offset for loading a type.
+PCHReader::RecordLocation PCHReader::TypeCursorForIndex(unsigned Index) {
+ PerFileData *F = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ F = Chain[N - I - 1];
+ if (Index < F->LocalNumTypes)
+ break;
+ Index -= F->LocalNumTypes;
+ }
+ assert(F && F->LocalNumTypes > Index && "Broken chain");
+ return RecordLocation(&F->DeclsCursor, F->TypeOffsets[Index]);
+}
+
+/// \brief Read and return the type with the given index..
+///
+/// The index is the type ID, shifted and minus the number of predefs. This
+/// routine actually reads the record corresponding to the type at the given
+/// location. It is a helper routine for GetType, which deals with reading type
+/// IDs.
+QualType PCHReader::ReadTypeRecord(unsigned Index) {
+ RecordLocation Loc = TypeCursorForIndex(Index);
+ llvm::BitstreamCursor &DeclsCursor = *Loc.first;
+
+ // Keep track of where we are in the stream, then jump back there
+ // after reading this type.
+ SavedStreamPosition SavedPosition(DeclsCursor);
+
+ ReadingKindTracker ReadingKind(Read_Type, *this);
+
+ // Note that we are loading a type record.
+ Deserializing AType(this);
+
+ DeclsCursor.JumpToBit(Loc.second);
+ RecordData Record;
+ unsigned Code = DeclsCursor.ReadCode();
+ switch ((pch::TypeCode)DeclsCursor.ReadRecord(Code, Record)) {
+ case pch::TYPE_EXT_QUAL: {
+ if (Record.size() != 2) {
+ Error("Incorrect encoding of extended qualifier type");
+ return QualType();
+ }
+ QualType Base = GetType(Record[0]);
+ Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[1]);
+ return Context->getQualifiedType(Base, Quals);
+ }
+
+ case pch::TYPE_COMPLEX: {
+ if (Record.size() != 1) {
+ Error("Incorrect encoding of complex type");
+ return QualType();
+ }
+ QualType ElemType = GetType(Record[0]);
+ return Context->getComplexType(ElemType);
+ }
+
+ case pch::TYPE_POINTER: {
+ if (Record.size() != 1) {
+ Error("Incorrect encoding of pointer type");
+ return QualType();
+ }
+ QualType PointeeType = GetType(Record[0]);
+ return Context->getPointerType(PointeeType);
+ }
+
+ case pch::TYPE_BLOCK_POINTER: {
+ if (Record.size() != 1) {
+ Error("Incorrect encoding of block pointer type");
+ return QualType();
+ }
+ QualType PointeeType = GetType(Record[0]);
+ return Context->getBlockPointerType(PointeeType);
+ }
+
+ case pch::TYPE_LVALUE_REFERENCE: {
+ if (Record.size() != 1) {
+ Error("Incorrect encoding of lvalue reference type");
+ return QualType();
+ }
+ QualType PointeeType = GetType(Record[0]);
+ return Context->getLValueReferenceType(PointeeType);
+ }
+
+ case pch::TYPE_RVALUE_REFERENCE: {
+ if (Record.size() != 1) {
+ Error("Incorrect encoding of rvalue reference type");
+ return QualType();
+ }
+ QualType PointeeType = GetType(Record[0]);
+ return Context->getRValueReferenceType(PointeeType);
+ }
+
+ case pch::TYPE_MEMBER_POINTER: {
+ if (Record.size() != 2) {
+ Error("Incorrect encoding of member pointer type");
+ return QualType();
+ }
+ QualType PointeeType = GetType(Record[0]);
+ QualType ClassType = GetType(Record[1]);
+ return Context->getMemberPointerType(PointeeType, ClassType.getTypePtr());
+ }
+
+ case pch::TYPE_CONSTANT_ARRAY: {
+ QualType ElementType = GetType(Record[0]);
+ ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
+ unsigned IndexTypeQuals = Record[2];
+ unsigned Idx = 3;
+ llvm::APInt Size = ReadAPInt(Record, Idx);
+ return Context->getConstantArrayType(ElementType, Size,
+ ASM, IndexTypeQuals);
+ }
+
+ case pch::TYPE_INCOMPLETE_ARRAY: {
+ QualType ElementType = GetType(Record[0]);
+ ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
+ unsigned IndexTypeQuals = Record[2];
+ return Context->getIncompleteArrayType(ElementType, ASM, IndexTypeQuals);
+ }
+
+ case pch::TYPE_VARIABLE_ARRAY: {
+ QualType ElementType = GetType(Record[0]);
+ ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
+ unsigned IndexTypeQuals = Record[2];
+ SourceLocation LBLoc = SourceLocation::getFromRawEncoding(Record[3]);
+ SourceLocation RBLoc = SourceLocation::getFromRawEncoding(Record[4]);
+ return Context->getVariableArrayType(ElementType, ReadExpr(DeclsCursor),
+ ASM, IndexTypeQuals,
+ SourceRange(LBLoc, RBLoc));
+ }
+
+ case pch::TYPE_VECTOR: {
+ if (Record.size() != 3) {
+ Error("incorrect encoding of vector type in PCH file");
+ return QualType();
+ }
+
+ QualType ElementType = GetType(Record[0]);
+ unsigned NumElements = Record[1];
+ unsigned AltiVecSpec = Record[2];
+ return Context->getVectorType(ElementType, NumElements,
+ (VectorType::AltiVecSpecific)AltiVecSpec);
+ }
+
+ case pch::TYPE_EXT_VECTOR: {
+ if (Record.size() != 3) {
+ Error("incorrect encoding of extended vector type in PCH file");
+ return QualType();
+ }
+
+ QualType ElementType = GetType(Record[0]);
+ unsigned NumElements = Record[1];
+ return Context->getExtVectorType(ElementType, NumElements);
+ }
+
+ case pch::TYPE_FUNCTION_NO_PROTO: {
+ if (Record.size() != 4) {
+ Error("incorrect encoding of no-proto function type");
+ return QualType();
+ }
+ QualType ResultType = GetType(Record[0]);
+ FunctionType::ExtInfo Info(Record[1], Record[2], (CallingConv)Record[3]);
+ return Context->getFunctionNoProtoType(ResultType, Info);
+ }
+
+ case pch::TYPE_FUNCTION_PROTO: {
+ QualType ResultType = GetType(Record[0]);
+ bool NoReturn = Record[1];
+ unsigned RegParm = Record[2];
+ CallingConv CallConv = (CallingConv)Record[3];
+ unsigned Idx = 4;
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<QualType, 16> ParamTypes;
+ for (unsigned I = 0; I != NumParams; ++I)
+ ParamTypes.push_back(GetType(Record[Idx++]));
+ bool isVariadic = Record[Idx++];
+ unsigned Quals = Record[Idx++];
+ bool hasExceptionSpec = Record[Idx++];
+ bool hasAnyExceptionSpec = Record[Idx++];
+ unsigned NumExceptions = Record[Idx++];
+ llvm::SmallVector<QualType, 2> Exceptions;
+ for (unsigned I = 0; I != NumExceptions; ++I)
+ Exceptions.push_back(GetType(Record[Idx++]));
+ return Context->getFunctionType(ResultType, ParamTypes.data(), NumParams,
+ isVariadic, Quals, hasExceptionSpec,
+ hasAnyExceptionSpec, NumExceptions,
+ Exceptions.data(),
+ FunctionType::ExtInfo(NoReturn, RegParm,
+ CallConv));
+ }
+
+ case pch::TYPE_UNRESOLVED_USING:
+ return Context->getTypeDeclType(
+ cast<UnresolvedUsingTypenameDecl>(GetDecl(Record[0])));
+
+ case pch::TYPE_TYPEDEF: {
+ if (Record.size() != 2) {
+ Error("incorrect encoding of typedef type");
+ return QualType();
+ }
+ TypedefDecl *Decl = cast<TypedefDecl>(GetDecl(Record[0]));
+ QualType Canonical = GetType(Record[1]);
+ return Context->getTypedefType(Decl, Canonical);
+ }
+
+ case pch::TYPE_TYPEOF_EXPR:
+ return Context->getTypeOfExprType(ReadExpr(DeclsCursor));
+
+ case pch::TYPE_TYPEOF: {
+ if (Record.size() != 1) {
+ Error("incorrect encoding of typeof(type) in PCH file");
+ return QualType();
+ }
+ QualType UnderlyingType = GetType(Record[0]);
+ return Context->getTypeOfType(UnderlyingType);
+ }
+
+ case pch::TYPE_DECLTYPE:
+ return Context->getDecltypeType(ReadExpr(DeclsCursor));
+
+ case pch::TYPE_RECORD: {
+ if (Record.size() != 2) {
+ Error("incorrect encoding of record type");
+ return QualType();
+ }
+ bool IsDependent = Record[0];
+ QualType T = Context->getRecordType(cast<RecordDecl>(GetDecl(Record[1])));
+ T->Dependent = IsDependent;
+ return T;
+ }
+
+ case pch::TYPE_ENUM: {
+ if (Record.size() != 2) {
+ Error("incorrect encoding of enum type");
+ return QualType();
+ }
+ bool IsDependent = Record[0];
+ QualType T = Context->getEnumType(cast<EnumDecl>(GetDecl(Record[1])));
+ T->Dependent = IsDependent;
+ return T;
+ }
+
+ case pch::TYPE_ELABORATED: {
+ unsigned Idx = 0;
+ ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
+ NestedNameSpecifier *NNS = ReadNestedNameSpecifier(Record, Idx);
+ QualType NamedType = GetType(Record[Idx++]);
+ return Context->getElaboratedType(Keyword, NNS, NamedType);
+ }
+
+ case pch::TYPE_OBJC_INTERFACE: {
+ unsigned Idx = 0;
+ ObjCInterfaceDecl *ItfD = cast<ObjCInterfaceDecl>(GetDecl(Record[Idx++]));
+ return Context->getObjCInterfaceType(ItfD);
+ }
+
+ case pch::TYPE_OBJC_OBJECT: {
+ unsigned Idx = 0;
+ QualType Base = GetType(Record[Idx++]);
+ unsigned NumProtos = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl*, 4> Protos;
+ for (unsigned I = 0; I != NumProtos; ++I)
+ Protos.push_back(cast<ObjCProtocolDecl>(GetDecl(Record[Idx++])));
+ return Context->getObjCObjectType(Base, Protos.data(), NumProtos);
+ }
+
+ case pch::TYPE_OBJC_OBJECT_POINTER: {
+ unsigned Idx = 0;
+ QualType Pointee = GetType(Record[Idx++]);
+ return Context->getObjCObjectPointerType(Pointee);
+ }
+
+ case pch::TYPE_SUBST_TEMPLATE_TYPE_PARM: {
+ unsigned Idx = 0;
+ QualType Parm = GetType(Record[Idx++]);
+ QualType Replacement = GetType(Record[Idx++]);
+ return
+ Context->getSubstTemplateTypeParmType(cast<TemplateTypeParmType>(Parm),
+ Replacement);
+ }
+
+ case pch::TYPE_INJECTED_CLASS_NAME: {
+ CXXRecordDecl *D = cast<CXXRecordDecl>(GetDecl(Record[0]));
+ QualType TST = GetType(Record[1]); // probably derivable
+ // FIXME: ASTContext::getInjectedClassNameType is not currently suitable
+ // for PCH reading, too much interdependencies.
+ return
+ QualType(new (*Context, TypeAlignment) InjectedClassNameType(D, TST), 0);
+ }
+
+ case pch::TYPE_TEMPLATE_TYPE_PARM: {
+ unsigned Idx = 0;
+ unsigned Depth = Record[Idx++];
+ unsigned Index = Record[Idx++];
+ bool Pack = Record[Idx++];
+ IdentifierInfo *Name = GetIdentifierInfo(Record, Idx);
+ return Context->getTemplateTypeParmType(Depth, Index, Pack, Name);
+ }
+
+ case pch::TYPE_DEPENDENT_NAME: {
+ unsigned Idx = 0;
+ ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
+ NestedNameSpecifier *NNS = ReadNestedNameSpecifier(Record, Idx);
+ const IdentifierInfo *Name = this->GetIdentifierInfo(Record, Idx);
+ QualType Canon = GetType(Record[Idx++]);
+ return Context->getDependentNameType(Keyword, NNS, Name, Canon);
+ }
+
+ case pch::TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: {
+ unsigned Idx = 0;
+ ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
+ NestedNameSpecifier *NNS = ReadNestedNameSpecifier(Record, Idx);
+ const IdentifierInfo *Name = this->GetIdentifierInfo(Record, Idx);
+ unsigned NumArgs = Record[Idx++];
+ llvm::SmallVector<TemplateArgument, 8> Args;
+ Args.reserve(NumArgs);
+ while (NumArgs--)
+ Args.push_back(ReadTemplateArgument(DeclsCursor, Record, Idx));
+ return Context->getDependentTemplateSpecializationType(Keyword, NNS, Name,
+ Args.size(), Args.data());
+ }
+
+ case pch::TYPE_DEPENDENT_SIZED_ARRAY: {
+ unsigned Idx = 0;
+
+ // ArrayType
+ QualType ElementType = GetType(Record[Idx++]);
+ ArrayType::ArraySizeModifier ASM
+ = (ArrayType::ArraySizeModifier)Record[Idx++];
+ unsigned IndexTypeQuals = Record[Idx++];
+
+ // DependentSizedArrayType
+ Expr *NumElts = ReadExpr(DeclsCursor);
+ SourceRange Brackets = ReadSourceRange(Record, Idx);
+
+ return Context->getDependentSizedArrayType(ElementType, NumElts, ASM,
+ IndexTypeQuals, Brackets);
+ }
+
+ case pch::TYPE_TEMPLATE_SPECIALIZATION: {
+ unsigned Idx = 0;
+ bool IsDependent = Record[Idx++];
+ TemplateName Name = ReadTemplateName(Record, Idx);
+ llvm::SmallVector<TemplateArgument, 8> Args;
+ ReadTemplateArgumentList(Args, DeclsCursor, Record, Idx);
+ QualType Canon = GetType(Record[Idx++]);
+ QualType T;
+ if (Canon.isNull())
+ T = Context->getCanonicalTemplateSpecializationType(Name, Args.data(),
+ Args.size());
+ else
+ T = Context->getTemplateSpecializationType(Name, Args.data(),
+ Args.size(), Canon);
+ T->Dependent = IsDependent;
+ return T;
+ }
+ }
+ // Suppress a GCC warning
+ return QualType();
+}
+
+namespace {
+
+class TypeLocReader : public TypeLocVisitor<TypeLocReader> {
+ PCHReader &Reader;
+ llvm::BitstreamCursor &DeclsCursor;
+ const PCHReader::RecordData &Record;
+ unsigned &Idx;
+
+public:
+ TypeLocReader(PCHReader &Reader, llvm::BitstreamCursor &Cursor,
+ const PCHReader::RecordData &Record, unsigned &Idx)
+ : Reader(Reader), DeclsCursor(Cursor), Record(Record), Idx(Idx) { }
+
+ // We want compile-time assurance that we've enumerated all of
+ // these, so unfortunately we have to declare them first, then
+ // define them out-of-line.
+#define ABSTRACT_TYPELOC(CLASS, PARENT)
+#define TYPELOC(CLASS, PARENT) \
+ void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
+#include "clang/AST/TypeLocNodes.def"
+
+ void VisitFunctionTypeLoc(FunctionTypeLoc);
+ void VisitArrayTypeLoc(ArrayTypeLoc);
+};
+
+}
+
+void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
+ // nothing to do
+}
+void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
+ TL.setBuiltinLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ if (TL.needsExtraLocalData()) {
+ TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++]));
+ TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++]));
+ TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++]));
+ TL.setModeAttr(Record[Idx++]);
+ }
+}
+void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) {
+ TL.setStarLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
+ TL.setCaretLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
+ TL.setAmpLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
+ TL.setAmpAmpLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
+ TL.setStarLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) {
+ TL.setLBracketLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRBracketLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ if (Record[Idx++])
+ TL.setSizeExpr(Reader.ReadExpr(DeclsCursor));
+ else
+ TL.setSizeExpr(0);
+}
+void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocReader::VisitDependentSizedArrayTypeLoc(
+ DependentSizedArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocReader::VisitDependentSizedExtVectorTypeLoc(
+ DependentSizedExtVectorTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
+ TL.setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) {
+ TL.setArg(i, cast_or_null<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ }
+}
+void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
+ VisitFunctionTypeLoc(TL);
+}
+void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
+ VisitFunctionTypeLoc(TL);
+}
+void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
+ TL.setTypeofLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
+ TL.setTypeofLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+}
+void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc(
+ SubstTemplateTypeParmTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitTemplateSpecializationTypeLoc(
+ TemplateSpecializationTypeLoc TL) {
+ TL.setTemplateNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setLAngleLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRAngleLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
+ TL.setArgLocInfo(i,
+ Reader.GetTemplateArgumentLocInfo(TL.getTypePtr()->getArg(i).getKind(),
+ DeclsCursor, Record, Idx));
+}
+void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
+ TL.setKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+}
+void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
+ TL.setKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc(
+ DependentTemplateSpecializationTypeLoc TL) {
+ TL.setKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setLAngleLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRAngleLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
+ TL.setArgLocInfo(I,
+ Reader.GetTemplateArgumentLocInfo(TL.getTypePtr()->getArg(I).getKind(),
+ DeclsCursor, Record, Idx));
+}
+void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
+ TL.setNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
+ TL.setHasBaseTypeAsWritten(Record[Idx++]);
+ TL.setLAngleLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TL.setRAngleLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
+ TL.setProtocolLoc(i, SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
+ TL.setStarLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+TypeSourceInfo *PCHReader::GetTypeSourceInfo(llvm::BitstreamCursor &DeclsCursor,
+ const RecordData &Record,
+ unsigned &Idx) {
+ QualType InfoTy = GetType(Record[Idx++]);
+ if (InfoTy.isNull())
+ return 0;
+
+ TypeSourceInfo *TInfo = getContext()->CreateTypeSourceInfo(InfoTy);
+ TypeLocReader TLR(*this, DeclsCursor, Record, Idx);
+ for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc())
+ TLR.Visit(TL);
+ return TInfo;
+}
+
+QualType PCHReader::GetType(pch::TypeID ID) {
+ unsigned FastQuals = ID & Qualifiers::FastMask;
+ unsigned Index = ID >> Qualifiers::FastWidth;
+
+ if (Index < pch::NUM_PREDEF_TYPE_IDS) {
+ QualType T;
+ switch ((pch::PredefinedTypeIDs)Index) {
+ case pch::PREDEF_TYPE_NULL_ID: return QualType();
+ case pch::PREDEF_TYPE_VOID_ID: T = Context->VoidTy; break;
+ case pch::PREDEF_TYPE_BOOL_ID: T = Context->BoolTy; break;
+
+ case pch::PREDEF_TYPE_CHAR_U_ID:
+ case pch::PREDEF_TYPE_CHAR_S_ID:
+ // FIXME: Check that the signedness of CharTy is correct!
+ T = Context->CharTy;
+ break;
+
+ case pch::PREDEF_TYPE_UCHAR_ID: T = Context->UnsignedCharTy; break;
+ case pch::PREDEF_TYPE_USHORT_ID: T = Context->UnsignedShortTy; break;
+ case pch::PREDEF_TYPE_UINT_ID: T = Context->UnsignedIntTy; break;
+ case pch::PREDEF_TYPE_ULONG_ID: T = Context->UnsignedLongTy; break;
+ case pch::PREDEF_TYPE_ULONGLONG_ID: T = Context->UnsignedLongLongTy; break;
+ case pch::PREDEF_TYPE_UINT128_ID: T = Context->UnsignedInt128Ty; break;
+ case pch::PREDEF_TYPE_SCHAR_ID: T = Context->SignedCharTy; break;
+ case pch::PREDEF_TYPE_WCHAR_ID: T = Context->WCharTy; break;
+ case pch::PREDEF_TYPE_SHORT_ID: T = Context->ShortTy; break;
+ case pch::PREDEF_TYPE_INT_ID: T = Context->IntTy; break;
+ case pch::PREDEF_TYPE_LONG_ID: T = Context->LongTy; break;
+ case pch::PREDEF_TYPE_LONGLONG_ID: T = Context->LongLongTy; break;
+ case pch::PREDEF_TYPE_INT128_ID: T = Context->Int128Ty; break;
+ case pch::PREDEF_TYPE_FLOAT_ID: T = Context->FloatTy; break;
+ case pch::PREDEF_TYPE_DOUBLE_ID: T = Context->DoubleTy; break;
+ case pch::PREDEF_TYPE_LONGDOUBLE_ID: T = Context->LongDoubleTy; break;
+ case pch::PREDEF_TYPE_OVERLOAD_ID: T = Context->OverloadTy; break;
+ case pch::PREDEF_TYPE_DEPENDENT_ID: T = Context->DependentTy; break;
+ case pch::PREDEF_TYPE_NULLPTR_ID: T = Context->NullPtrTy; break;
+ case pch::PREDEF_TYPE_CHAR16_ID: T = Context->Char16Ty; break;
+ case pch::PREDEF_TYPE_CHAR32_ID: T = Context->Char32Ty; break;
+ case pch::PREDEF_TYPE_OBJC_ID: T = Context->ObjCBuiltinIdTy; break;
+ case pch::PREDEF_TYPE_OBJC_CLASS: T = Context->ObjCBuiltinClassTy; break;
+ case pch::PREDEF_TYPE_OBJC_SEL: T = Context->ObjCBuiltinSelTy; break;
+ }
+
+ assert(!T.isNull() && "Unknown predefined type");
+ return T.withFastQualifiers(FastQuals);
+ }
+
+ Index -= pch::NUM_PREDEF_TYPE_IDS;
+ assert(Index < TypesLoaded.size() && "Type index out-of-range");
+ if (TypesLoaded[Index].isNull()) {
+ TypesLoaded[Index] = ReadTypeRecord(Index);
+ TypesLoaded[Index]->setFromPCH();
+ if (DeserializationListener)
+ DeserializationListener->TypeRead(ID >> Qualifiers::FastWidth,
+ TypesLoaded[Index]);
+ }
+
+ return TypesLoaded[Index].withFastQualifiers(FastQuals);
+}
+
+TemplateArgumentLocInfo
+PCHReader::GetTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
+ llvm::BitstreamCursor &DeclsCursor,
+ const RecordData &Record,
+ unsigned &Index) {
+ switch (Kind) {
+ case TemplateArgument::Expression:
+ return ReadExpr(DeclsCursor);
+ case TemplateArgument::Type:
+ return GetTypeSourceInfo(DeclsCursor, Record, Index);
+ case TemplateArgument::Template: {
+ SourceRange QualifierRange = ReadSourceRange(Record, Index);
+ SourceLocation TemplateNameLoc = ReadSourceLocation(Record, Index);
+ return TemplateArgumentLocInfo(QualifierRange, TemplateNameLoc);
+ }
+ case TemplateArgument::Null:
+ case TemplateArgument::Integral:
+ case TemplateArgument::Declaration:
+ case TemplateArgument::Pack:
+ return TemplateArgumentLocInfo();
+ }
+ llvm_unreachable("unexpected template argument loc");
+ return TemplateArgumentLocInfo();
+}
+
+TemplateArgumentLoc
+PCHReader::ReadTemplateArgumentLoc(llvm::BitstreamCursor &DeclsCursor,
+ const RecordData &Record, unsigned &Index) {
+ TemplateArgument Arg = ReadTemplateArgument(DeclsCursor, Record, Index);
+
+ if (Arg.getKind() == TemplateArgument::Expression) {
+ if (Record[Index++]) // bool InfoHasSameExpr.
+ return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr()));
+ }
+ return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(Arg.getKind(),
+ DeclsCursor,
+ Record, Index));
+}
+
+Decl *PCHReader::GetExternalDecl(uint32_t ID) {
+ return GetDecl(ID);
+}
+
+TranslationUnitDecl *PCHReader::GetTranslationUnitDecl() {
+ if (!DeclsLoaded[0]) {
+ ReadDeclRecord(0, 0);
+ if (DeserializationListener)
+ DeserializationListener->DeclRead(1, DeclsLoaded[0]);
+ }
+
+ return cast<TranslationUnitDecl>(DeclsLoaded[0]);
+}
+
+Decl *PCHReader::GetDecl(pch::DeclID ID) {
+ if (ID == 0)
+ return 0;
+
+ if (ID > DeclsLoaded.size()) {
+ Error("declaration ID out-of-range for PCH file");
+ return 0;
+ }
+
+ unsigned Index = ID - 1;
+ if (!DeclsLoaded[Index]) {
+ ReadDeclRecord(Index, ID);
+ if (DeserializationListener)
+ DeserializationListener->DeclRead(ID, DeclsLoaded[Index]);
+ }
+
+ return DeclsLoaded[Index];
+}
+
+/// \brief Resolve the offset of a statement into a statement.
+///
+/// This operation will read a new statement from the external
+/// source each time it is called, and is meant to be used via a
+/// LazyOffsetPtr (which is used by Decls for the body of functions, etc).
+Stmt *PCHReader::GetExternalDeclStmt(uint64_t Offset) {
+ // Offset here is a global offset across the entire chain.
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ PerFileData &F = *Chain[N - I - 1];
+ if (Offset < F.SizeInBits) {
+ // Since we know that this statement is part of a decl, make sure to use
+ // the decl cursor to read it.
+ F.DeclsCursor.JumpToBit(Offset);
+ return ReadStmtFromStream(F.DeclsCursor);
+ }
+ Offset -= F.SizeInBits;
+ }
+ llvm_unreachable("Broken chain");
+}
+
+bool PCHReader::FindExternalLexicalDecls(const DeclContext *DC,
+ llvm::SmallVectorImpl<Decl*> &Decls) {
+ assert(DC->hasExternalLexicalStorage() &&
+ "DeclContext has no lexical decls in storage");
+
+ // There might be lexical decls in multiple parts of the chain, for the TU
+ // at least.
+ DeclContextInfos &Infos = DeclContextOffsets[DC];
+ for (DeclContextInfos::iterator I = Infos.begin(), E = Infos.end();
+ I != E; ++I) {
+ // IDs can be 0 if this context doesn't contain declarations.
+ if (!I->LexicalDecls)
+ continue;
+
+ // Load all of the declaration IDs
+ for (const pch::DeclID *ID = I->LexicalDecls,
+ *IDE = ID + I->NumLexicalDecls;
+ ID != IDE; ++ID)
+ Decls.push_back(GetDecl(*ID));
+ }
+
+ ++NumLexicalDeclContextsRead;
+ return false;
+}
+
+DeclContext::lookup_result
+PCHReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
+ DeclarationName Name) {
+ assert(DC->hasExternalVisibleStorage() &&
+ "DeclContext has no visible decls in storage");
+
+ llvm::SmallVector<VisibleDeclaration, 64> Decls;
+ // There might be lexical decls in multiple parts of the chain, for the TU
+ // and namespaces.
+ DeclContextInfos &Infos = DeclContextOffsets[DC];
+ for (DeclContextInfos::iterator I = Infos.begin(), E = Infos.end();
+ I != E; ++I) {
+ uint64_t Offset = I->OffsetToVisibleDecls;
+ if (Offset == 0)
+ continue;
+
+ llvm::BitstreamCursor &DeclsCursor = *I->Stream;
+
+ // Keep track of where we are in the stream, then jump back there
+ // after reading this context.
+ SavedStreamPosition SavedPosition(DeclsCursor);
+
+ // Load the record containing all of the declarations visible in
+ // this context.
+ DeclsCursor.JumpToBit(Offset);
+ RecordData Record;
+ unsigned Code = DeclsCursor.ReadCode();
+ unsigned RecCode = DeclsCursor.ReadRecord(Code, Record);
+ if (RecCode != pch::DECL_CONTEXT_VISIBLE) {
+ Error("Expected visible block");
+ return DeclContext::lookup_result(DeclContext::lookup_iterator(),
+ DeclContext::lookup_iterator());
+ }
+
+ if (Record.empty())
+ continue;
+
+ unsigned Idx = 0;
+ while (Idx < Record.size()) {
+ Decls.push_back(VisibleDeclaration());
+ Decls.back().Name = ReadDeclarationName(Record, Idx);
+
+ unsigned Size = Record[Idx++];
+ llvm::SmallVector<unsigned, 4> &LoadedDecls = Decls.back().Declarations;
+ LoadedDecls.reserve(Size);
+ for (unsigned J = 0; J < Size; ++J)
+ LoadedDecls.push_back(Record[Idx++]);
+ }
+ }
+
+ ++NumVisibleDeclContextsRead;
+
+ SetExternalVisibleDecls(DC, Decls);
+ return const_cast<DeclContext*>(DC)->lookup(Name);
+}
+
+void PCHReader::PassInterestingDeclsToConsumer() {
+ assert(Consumer);
+ while (!InterestingDecls.empty()) {
+ DeclGroupRef DG(InterestingDecls.front());
+ InterestingDecls.pop_front();
+ Consumer->HandleInterestingDecl(DG);
+ }
+}
+
+void PCHReader::StartTranslationUnit(ASTConsumer *Consumer) {
+ this->Consumer = Consumer;
+
+ if (!Consumer)
+ return;
+
+ for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) {
+ // Force deserialization of this decl, which will cause it to be queued for
+ // passing to the consumer.
+ GetDecl(ExternalDefinitions[I]);
+ }
+
+ PassInterestingDeclsToConsumer();
+}
+
+void PCHReader::PrintStats() {
+ std::fprintf(stderr, "*** PCH Statistics:\n");
+
+ unsigned NumTypesLoaded
+ = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(),
+ QualType());
+ unsigned NumDeclsLoaded
+ = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(),
+ (Decl *)0);
+ unsigned NumIdentifiersLoaded
+ = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(),
+ IdentifiersLoaded.end(),
+ (IdentifierInfo *)0);
+ unsigned NumSelectorsLoaded
+ = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(),
+ SelectorsLoaded.end(),
+ Selector());
+
+ std::fprintf(stderr, " %u stat cache hits\n", NumStatHits);
+ std::fprintf(stderr, " %u stat cache misses\n", NumStatMisses);
+ if (TotalNumSLocEntries)
+ std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n",
+ NumSLocEntriesRead, TotalNumSLocEntries,
+ ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100));
+ if (!TypesLoaded.empty())
+ std::fprintf(stderr, " %u/%u types read (%f%%)\n",
+ NumTypesLoaded, (unsigned)TypesLoaded.size(),
+ ((float)NumTypesLoaded/TypesLoaded.size() * 100));
+ if (!DeclsLoaded.empty())
+ std::fprintf(stderr, " %u/%u declarations read (%f%%)\n",
+ NumDeclsLoaded, (unsigned)DeclsLoaded.size(),
+ ((float)NumDeclsLoaded/DeclsLoaded.size() * 100));
+ if (!IdentifiersLoaded.empty())
+ std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n",
+ NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(),
+ ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100));
+ if (!SelectorsLoaded.empty())
+ std::fprintf(stderr, " %u/%u selectors read (%f%%)\n",
+ NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(),
+ ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100));
+ if (TotalNumStatements)
+ std::fprintf(stderr, " %u/%u statements read (%f%%)\n",
+ NumStatementsRead, TotalNumStatements,
+ ((float)NumStatementsRead/TotalNumStatements * 100));
+ if (TotalNumMacros)
+ std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
+ NumMacrosRead, TotalNumMacros,
+ ((float)NumMacrosRead/TotalNumMacros * 100));
+ if (TotalLexicalDeclContexts)
+ std::fprintf(stderr, " %u/%u lexical declcontexts read (%f%%)\n",
+ NumLexicalDeclContextsRead, TotalLexicalDeclContexts,
+ ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts
+ * 100));
+ if (TotalVisibleDeclContexts)
+ std::fprintf(stderr, " %u/%u visible declcontexts read (%f%%)\n",
+ NumVisibleDeclContextsRead, TotalVisibleDeclContexts,
+ ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts
+ * 100));
+ if (TotalNumMethodPoolEntries) {
+ std::fprintf(stderr, " %u/%u method pool entries read (%f%%)\n",
+ NumMethodPoolEntriesRead, TotalNumMethodPoolEntries,
+ ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries
+ * 100));
+ std::fprintf(stderr, " %u method pool misses\n", NumMethodPoolMisses);
+ }
+ std::fprintf(stderr, "\n");
+}
+
+void PCHReader::InitializeSema(Sema &S) {
+ SemaObj = &S;
+ S.ExternalSource = this;
+
+ // Makes sure any declarations that were deserialized "too early"
+ // still get added to the identifier's declaration chains.
+ if (SemaObj->TUScope) {
+ for (unsigned I = 0, N = PreloadedDecls.size(); I != N; ++I) {
+ SemaObj->TUScope->AddDecl(Action::DeclPtrTy::make(PreloadedDecls[I]));
+ SemaObj->IdResolver.AddDecl(PreloadedDecls[I]);
+ }
+ }
+ PreloadedDecls.clear();
+
+ // If there were any tentative definitions, deserialize them and add
+ // them to Sema's list of tentative definitions.
+ for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) {
+ VarDecl *Var = cast<VarDecl>(GetDecl(TentativeDefinitions[I]));
+ SemaObj->TentativeDefinitions.push_back(Var);
+ }
+
+ // If there were any unused file scoped decls, deserialize them and add to
+ // Sema's list of unused file scoped decls.
+ for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) {
+ DeclaratorDecl *D = cast<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I]));
+ SemaObj->UnusedFileScopedDecls.push_back(D);
+ }
+
+ // If there were any weak undeclared identifiers, deserialize them and add to
+ // Sema's list of weak undeclared identifiers.
+ if (!WeakUndeclaredIdentifiers.empty()) {
+ unsigned Idx = 0;
+ for (unsigned I = 0, N = WeakUndeclaredIdentifiers[Idx++]; I != N; ++I) {
+ IdentifierInfo *WeakId = GetIdentifierInfo(WeakUndeclaredIdentifiers,Idx);
+ IdentifierInfo *AliasId=GetIdentifierInfo(WeakUndeclaredIdentifiers,Idx);
+ SourceLocation Loc = ReadSourceLocation(WeakUndeclaredIdentifiers, Idx);
+ bool Used = WeakUndeclaredIdentifiers[Idx++];
+ Sema::WeakInfo WI(AliasId, Loc);
+ WI.setUsed(Used);
+ SemaObj->WeakUndeclaredIdentifiers.insert(std::make_pair(WeakId, WI));
+ }
+ }
+
+ // If there were any locally-scoped external declarations,
+ // deserialize them and add them to Sema's table of locally-scoped
+ // external declarations.
+ for (unsigned I = 0, N = LocallyScopedExternalDecls.size(); I != N; ++I) {
+ NamedDecl *D = cast<NamedDecl>(GetDecl(LocallyScopedExternalDecls[I]));
+ SemaObj->LocallyScopedExternalDecls[D->getDeclName()] = D;
+ }
+
+ // If there were any ext_vector type declarations, deserialize them
+ // and add them to Sema's vector of such declarations.
+ for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I)
+ SemaObj->ExtVectorDecls.push_back(
+ cast<TypedefDecl>(GetDecl(ExtVectorDecls[I])));
+
+ // FIXME: Do VTable uses and dynamic classes deserialize too much ?
+ // Can we cut them down before writing them ?
+
+ // If there were any VTable uses, deserialize the information and add it
+ // to Sema's vector and map of VTable uses.
+ if (!VTableUses.empty()) {
+ unsigned Idx = 0;
+ for (unsigned I = 0, N = VTableUses[Idx++]; I != N; ++I) {
+ CXXRecordDecl *Class = cast<CXXRecordDecl>(GetDecl(VTableUses[Idx++]));
+ SourceLocation Loc = ReadSourceLocation(VTableUses, Idx);
+ bool DefinitionRequired = VTableUses[Idx++];
+ SemaObj->VTableUses.push_back(std::make_pair(Class, Loc));
+ SemaObj->VTablesUsed[Class] = DefinitionRequired;
+ }
+ }
+
+ // If there were any dynamic classes declarations, deserialize them
+ // and add them to Sema's vector of such declarations.
+ for (unsigned I = 0, N = DynamicClasses.size(); I != N; ++I)
+ SemaObj->DynamicClasses.push_back(
+ cast<CXXRecordDecl>(GetDecl(DynamicClasses[I])));
+
+ // If there were any pending implicit instantiations, deserialize them
+ // and add them to Sema's queue of such instantiations.
+ assert(PendingImplicitInstantiations.size() % 2 == 0 &&
+ "Expected pairs of entries");
+ for (unsigned Idx = 0, N = PendingImplicitInstantiations.size(); Idx < N;) {
+ ValueDecl *D=cast<ValueDecl>(GetDecl(PendingImplicitInstantiations[Idx++]));
+ SourceLocation Loc = ReadSourceLocation(PendingImplicitInstantiations, Idx);
+ SemaObj->PendingImplicitInstantiations.push_back(std::make_pair(D, Loc));
+ }
+
+ // Load the offsets of the declarations that Sema references.
+ // They will be lazily deserialized when needed.
+ if (!SemaDeclRefs.empty()) {
+ assert(SemaDeclRefs.size() == 2 && "More decl refs than expected!");
+ SemaObj->StdNamespace = SemaDeclRefs[0];
+ SemaObj->StdBadAlloc = SemaDeclRefs[1];
+ }
+
+ // If there are @selector references added them to its pool. This is for
+ // implementation of -Wselector.
+ if (!ReferencedSelectorsData.empty()) {
+ unsigned int DataSize = ReferencedSelectorsData.size()-1;
+ unsigned I = 0;
+ while (I < DataSize) {
+ Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]);
+ SourceLocation SelLoc =
+ SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]);
+ SemaObj->ReferencedSelectors.insert(std::make_pair(Sel, SelLoc));
+ }
+ }
+}
+
+IdentifierInfo* PCHReader::get(const char *NameStart, const char *NameEnd) {
+ // Try to find this name within our on-disk hash tables. We start with the
+ // most recent one, since that one contains the most up-to-date info.
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ PCHIdentifierLookupTable *IdTable
+ = (PCHIdentifierLookupTable *)Chain[I]->IdentifierLookupTable;
+ if (!IdTable)
+ continue;
+ std::pair<const char*, unsigned> Key(NameStart, NameEnd - NameStart);
+ PCHIdentifierLookupTable::iterator Pos = IdTable->find(Key);
+ if (Pos == IdTable->end())
+ continue;
+
+ // Dereferencing the iterator has the effect of building the
+ // IdentifierInfo node and populating it with the various
+ // declarations it needs.
+ return *Pos;
+ }
+ return 0;
+}
+
+std::pair<ObjCMethodList, ObjCMethodList>
+PCHReader::ReadMethodPool(Selector Sel) {
+ // Find this selector in a hash table. We want to find the most recent entry.
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ PerFileData &F = *Chain[I];
+ if (!F.SelectorLookupTable)
+ continue;
+
+ PCHSelectorLookupTable *PoolTable
+ = (PCHSelectorLookupTable*)F.SelectorLookupTable;
+ PCHSelectorLookupTable::iterator Pos = PoolTable->find(Sel);
+ if (Pos != PoolTable->end()) {
+ ++NumSelectorsRead;
+ // FIXME: Not quite happy with the statistics here. We probably should
+ // disable this tracking when called via LoadSelector.
+ // Also, should entries without methods count as misses?
+ ++NumMethodPoolEntriesRead;
+ PCHSelectorLookupTrait::data_type Data = *Pos;
+ if (DeserializationListener)
+ DeserializationListener->SelectorRead(Data.ID, Sel);
+ return std::make_pair(Data.Instance, Data.Factory);
+ }
+ }
+
+ ++NumMethodPoolMisses;
+ return std::pair<ObjCMethodList, ObjCMethodList>();
+}
+
+void PCHReader::LoadSelector(Selector Sel) {
+ // It would be complicated to avoid reading the methods anyway. So don't.
+ ReadMethodPool(Sel);
+}
+
+void PCHReader::SetIdentifierInfo(unsigned ID, IdentifierInfo *II) {
+ assert(ID && "Non-zero identifier ID required");
+ assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range");
+ IdentifiersLoaded[ID - 1] = II;
+ if (DeserializationListener)
+ DeserializationListener->IdentifierRead(ID, II);
+}
+
+/// \brief Set the globally-visible declarations associated with the given
+/// identifier.
+///
+/// If the PCH reader is currently in a state where the given declaration IDs
+/// cannot safely be resolved, they are queued until it is safe to resolve
+/// them.
+///
+/// \param II an IdentifierInfo that refers to one or more globally-visible
+/// declarations.
+///
+/// \param DeclIDs the set of declaration IDs with the name @p II that are
+/// visible at global scope.
+///
+/// \param Nonrecursive should be true to indicate that the caller knows that
+/// this call is non-recursive, and therefore the globally-visible declarations
+/// will not be placed onto the pending queue.
+void
+PCHReader::SetGloballyVisibleDecls(IdentifierInfo *II,
+ const llvm::SmallVectorImpl<uint32_t> &DeclIDs,
+ bool Nonrecursive) {
+ if (NumCurrentElementsDeserializing && !Nonrecursive) {
+ PendingIdentifierInfos.push_back(PendingIdentifierInfo());
+ PendingIdentifierInfo &PII = PendingIdentifierInfos.back();
+ PII.II = II;
+ for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I)
+ PII.DeclIDs.push_back(DeclIDs[I]);
+ return;
+ }
+
+ for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) {
+ NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I]));
+ if (SemaObj) {
+ if (SemaObj->TUScope) {
+ // Introduce this declaration into the translation-unit scope
+ // and add it to the declaration chain for this identifier, so
+ // that (unqualified) name lookup will find it.
+ SemaObj->TUScope->AddDecl(Action::DeclPtrTy::make(D));
+ SemaObj->IdResolver.AddDeclToIdentifierChain(II, D);
+ }
+ } else {
+ // Queue this declaration so that it will be added to the
+ // translation unit scope and identifier's declaration chain
+ // once a Sema object is known.
+ PreloadedDecls.push_back(D);
+ }
+ }
+}
+
+IdentifierInfo *PCHReader::DecodeIdentifierInfo(unsigned ID) {
+ if (ID == 0)
+ return 0;
+
+ if (IdentifiersLoaded.empty()) {
+ Error("no identifier table in PCH file");
+ return 0;
+ }
+
+ assert(PP && "Forgot to set Preprocessor ?");
+ ID -= 1;
+ if (!IdentifiersLoaded[ID]) {
+ unsigned Index = ID;
+ const char *Str = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ PerFileData *F = Chain[N - I - 1];
+ if (Index < F->LocalNumIdentifiers) {
+ uint32_t Offset = F->IdentifierOffsets[Index];
+ Str = F->IdentifierTableData + Offset;
+ break;
+ }
+ Index -= F->LocalNumIdentifiers;
+ }
+ assert(Str && "Broken Chain");
+
+ // All of the strings in the PCH file are preceded by a 16-bit
+ // length. Extract that 16-bit length to avoid having to execute
+ // strlen().
+ // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as
+ // unsigned integers. This is important to avoid integer overflow when
+ // we cast them to 'unsigned'.
+ const unsigned char *StrLenPtr = (const unsigned char*) Str - 2;
+ unsigned StrLen = (((unsigned) StrLenPtr[0])
+ | (((unsigned) StrLenPtr[1]) << 8)) - 1;
+ IdentifiersLoaded[ID]
+ = &PP->getIdentifierTable().get(Str, StrLen);
+ if (DeserializationListener)
+ DeserializationListener->IdentifierRead(ID + 1, IdentifiersLoaded[ID]);
+ }
+
+ return IdentifiersLoaded[ID];
+}
+
+void PCHReader::ReadSLocEntry(unsigned ID) {
+ ReadSLocEntryRecord(ID);
+}
+
+Selector PCHReader::DecodeSelector(unsigned ID) {
+ if (ID == 0)
+ return Selector();
+
+ if (ID > SelectorsLoaded.size()) {
+ Error("selector ID out of range in PCH file");
+ return Selector();
+ }
+
+ if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == 0) {
+ // Load this selector from the selector table.
+ unsigned Idx = ID - 1;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ PerFileData &F = *Chain[N - I - 1];
+ if (Idx < F.LocalNumSelectors) {
+ PCHSelectorLookupTrait Trait(*this);
+ SelectorsLoaded[ID - 1] =
+ Trait.ReadKey(F.SelectorLookupTableData + F.SelectorOffsets[Idx], 0);
+ if (DeserializationListener)
+ DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]);
+ break;
+ }
+ Idx -= F.LocalNumSelectors;
+ }
+ }
+
+ return SelectorsLoaded[ID - 1];
+}
+
+Selector PCHReader::GetExternalSelector(uint32_t ID) {
+ return DecodeSelector(ID);
+}
+
+uint32_t PCHReader::GetNumExternalSelectors() {
+ // ID 0 (the null selector) is considered an external selector.
+ return getTotalNumSelectors() + 1;
+}
+
+DeclarationName
+PCHReader::ReadDeclarationName(const RecordData &Record, unsigned &Idx) {
+ DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++];
+ switch (Kind) {
+ case DeclarationName::Identifier:
+ return DeclarationName(GetIdentifierInfo(Record, Idx));
+
+ case DeclarationName::ObjCZeroArgSelector:
+ case DeclarationName::ObjCOneArgSelector:
+ case DeclarationName::ObjCMultiArgSelector:
+ return DeclarationName(GetSelector(Record, Idx));
+
+ case DeclarationName::CXXConstructorName:
+ return Context->DeclarationNames.getCXXConstructorName(
+ Context->getCanonicalType(GetType(Record[Idx++])));
+
+ case DeclarationName::CXXDestructorName:
+ return Context->DeclarationNames.getCXXDestructorName(
+ Context->getCanonicalType(GetType(Record[Idx++])));
+
+ case DeclarationName::CXXConversionFunctionName:
+ return Context->DeclarationNames.getCXXConversionFunctionName(
+ Context->getCanonicalType(GetType(Record[Idx++])));
+
+ case DeclarationName::CXXOperatorName:
+ return Context->DeclarationNames.getCXXOperatorName(
+ (OverloadedOperatorKind)Record[Idx++]);
+
+ case DeclarationName::CXXLiteralOperatorName:
+ return Context->DeclarationNames.getCXXLiteralOperatorName(
+ GetIdentifierInfo(Record, Idx));
+
+ case DeclarationName::CXXUsingDirective:
+ return DeclarationName::getUsingDirectiveName();
+ }
+
+ // Required to silence GCC warning
+ return DeclarationName();
+}
+
+TemplateName
+PCHReader::ReadTemplateName(const RecordData &Record, unsigned &Idx) {
+ TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++];
+ switch (Kind) {
+ case TemplateName::Template:
+ return TemplateName(cast_or_null<TemplateDecl>(GetDecl(Record[Idx++])));
+
+ case TemplateName::OverloadedTemplate: {
+ unsigned size = Record[Idx++];
+ UnresolvedSet<8> Decls;
+ while (size--)
+ Decls.addDecl(cast<NamedDecl>(GetDecl(Record[Idx++])));
+
+ return Context->getOverloadedTemplateName(Decls.begin(), Decls.end());
+ }
+
+ case TemplateName::QualifiedTemplate: {
+ NestedNameSpecifier *NNS = ReadNestedNameSpecifier(Record, Idx);
+ bool hasTemplKeyword = Record[Idx++];
+ TemplateDecl *Template = cast<TemplateDecl>(GetDecl(Record[Idx++]));
+ return Context->getQualifiedTemplateName(NNS, hasTemplKeyword, Template);
+ }
+
+ case TemplateName::DependentTemplate: {
+ NestedNameSpecifier *NNS = ReadNestedNameSpecifier(Record, Idx);
+ if (Record[Idx++]) // isIdentifier
+ return Context->getDependentTemplateName(NNS,
+ GetIdentifierInfo(Record, Idx));
+ return Context->getDependentTemplateName(NNS,
+ (OverloadedOperatorKind)Record[Idx++]);
+ }
+ }
+
+ assert(0 && "Unhandled template name kind!");
+ return TemplateName();
+}
+
+TemplateArgument
+PCHReader::ReadTemplateArgument(llvm::BitstreamCursor &DeclsCursor,
+ const RecordData &Record, unsigned &Idx) {
+ switch ((TemplateArgument::ArgKind)Record[Idx++]) {
+ case TemplateArgument::Null:
+ return TemplateArgument();
+ case TemplateArgument::Type:
+ return TemplateArgument(GetType(Record[Idx++]));
+ case TemplateArgument::Declaration:
+ return TemplateArgument(GetDecl(Record[Idx++]));
+ case TemplateArgument::Integral: {
+ llvm::APSInt Value = ReadAPSInt(Record, Idx);
+ QualType T = GetType(Record[Idx++]);
+ return TemplateArgument(Value, T);
+ }
+ case TemplateArgument::Template:
+ return TemplateArgument(ReadTemplateName(Record, Idx));
+ case TemplateArgument::Expression:
+ return TemplateArgument(ReadExpr(DeclsCursor));
+ case TemplateArgument::Pack: {
+ unsigned NumArgs = Record[Idx++];
+ llvm::SmallVector<TemplateArgument, 8> Args;
+ Args.reserve(NumArgs);
+ while (NumArgs--)
+ Args.push_back(ReadTemplateArgument(DeclsCursor, Record, Idx));
+ TemplateArgument TemplArg;
+ TemplArg.setArgumentPack(Args.data(), Args.size(), /*CopyArgs=*/true);
+ return TemplArg;
+ }
+ }
+
+ assert(0 && "Unhandled template argument kind!");
+ return TemplateArgument();
+}
+
+TemplateParameterList *
+PCHReader::ReadTemplateParameterList(const RecordData &Record, unsigned &Idx) {
+ SourceLocation TemplateLoc = ReadSourceLocation(Record, Idx);
+ SourceLocation LAngleLoc = ReadSourceLocation(Record, Idx);
+ SourceLocation RAngleLoc = ReadSourceLocation(Record, Idx);
+
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<NamedDecl *, 16> Params;
+ Params.reserve(NumParams);
+ while (NumParams--)
+ Params.push_back(cast<NamedDecl>(GetDecl(Record[Idx++])));
+
+ TemplateParameterList* TemplateParams =
+ TemplateParameterList::Create(*Context, TemplateLoc, LAngleLoc,
+ Params.data(), Params.size(), RAngleLoc);
+ return TemplateParams;
+}
+
+void
+PCHReader::
+ReadTemplateArgumentList(llvm::SmallVector<TemplateArgument, 8> &TemplArgs,
+ llvm::BitstreamCursor &DeclsCursor,
+ const RecordData &Record, unsigned &Idx) {
+ unsigned NumTemplateArgs = Record[Idx++];
+ TemplArgs.reserve(NumTemplateArgs);
+ while (NumTemplateArgs--)
+ TemplArgs.push_back(ReadTemplateArgument(DeclsCursor, Record, Idx));
+}
+
+/// \brief Read a UnresolvedSet structure.
+void PCHReader::ReadUnresolvedSet(UnresolvedSetImpl &Set,
+ const RecordData &Record, unsigned &Idx) {
+ unsigned NumDecls = Record[Idx++];
+ while (NumDecls--) {
+ NamedDecl *D = cast<NamedDecl>(GetDecl(Record[Idx++]));
+ AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
+ Set.addDecl(D, AS);
+ }
+}
+
+CXXBaseSpecifier
+PCHReader::ReadCXXBaseSpecifier(llvm::BitstreamCursor &DeclsCursor,
+ const RecordData &Record, unsigned &Idx) {
+ bool isVirtual = static_cast<bool>(Record[Idx++]);
+ bool isBaseOfClass = static_cast<bool>(Record[Idx++]);
+ AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]);
+ TypeSourceInfo *TInfo = GetTypeSourceInfo(DeclsCursor, Record, Idx);
+ SourceRange Range = ReadSourceRange(Record, Idx);
+ return CXXBaseSpecifier(Range, isVirtual, isBaseOfClass, AS, TInfo);
+}
+
+std::pair<CXXBaseOrMemberInitializer **, unsigned>
+PCHReader::ReadCXXBaseOrMemberInitializers(llvm::BitstreamCursor &Cursor,
+ const RecordData &Record,
+ unsigned &Idx) {
+ CXXBaseOrMemberInitializer **BaseOrMemberInitializers = 0;
+ unsigned NumInitializers = Record[Idx++];
+ if (NumInitializers) {
+ ASTContext &C = *getContext();
+
+ BaseOrMemberInitializers
+ = new (C) CXXBaseOrMemberInitializer*[NumInitializers];
+ for (unsigned i=0; i != NumInitializers; ++i) {
+ TypeSourceInfo *BaseClassInfo = 0;
+ bool IsBaseVirtual = false;
+ FieldDecl *Member = 0;
+
+ bool IsBaseInitializer = Record[Idx++];
+ if (IsBaseInitializer) {
+ BaseClassInfo = GetTypeSourceInfo(Cursor, Record, Idx);
+ IsBaseVirtual = Record[Idx++];
+ } else {
+ Member = cast<FieldDecl>(GetDecl(Record[Idx++]));
+ }
+ SourceLocation MemberLoc = ReadSourceLocation(Record, Idx);
+ Expr *Init = ReadExpr(Cursor);
+ FieldDecl *AnonUnionMember
+ = cast_or_null<FieldDecl>(GetDecl(Record[Idx++]));
+ SourceLocation LParenLoc = ReadSourceLocation(Record, Idx);
+ SourceLocation RParenLoc = ReadSourceLocation(Record, Idx);
+ bool IsWritten = Record[Idx++];
+ unsigned SourceOrderOrNumArrayIndices;
+ llvm::SmallVector<VarDecl *, 8> Indices;
+ if (IsWritten) {
+ SourceOrderOrNumArrayIndices = Record[Idx++];
+ } else {
+ SourceOrderOrNumArrayIndices = Record[Idx++];
+ Indices.reserve(SourceOrderOrNumArrayIndices);
+ for (unsigned i=0; i != SourceOrderOrNumArrayIndices; ++i)
+ Indices.push_back(cast<VarDecl>(GetDecl(Record[Idx++])));
+ }
+
+ CXXBaseOrMemberInitializer *BOMInit;
+ if (IsBaseInitializer) {
+ BOMInit = new (C) CXXBaseOrMemberInitializer(C, BaseClassInfo,
+ IsBaseVirtual, LParenLoc,
+ Init, RParenLoc);
+ } else if (IsWritten) {
+ BOMInit = new (C) CXXBaseOrMemberInitializer(C, Member, MemberLoc,
+ LParenLoc, Init, RParenLoc);
+ } else {
+ BOMInit = CXXBaseOrMemberInitializer::Create(C, Member, MemberLoc,
+ LParenLoc, Init, RParenLoc,
+ Indices.data(),
+ Indices.size());
+ }
+
+ BOMInit->setAnonUnionMember(AnonUnionMember);
+ BaseOrMemberInitializers[i] = BOMInit;
+ }
+ }
+
+ return std::make_pair(BaseOrMemberInitializers, NumInitializers);
+}
+
+NestedNameSpecifier *
+PCHReader::ReadNestedNameSpecifier(const RecordData &Record, unsigned &Idx) {
+ unsigned N = Record[Idx++];
+ NestedNameSpecifier *NNS = 0, *Prev = 0;
+ for (unsigned I = 0; I != N; ++I) {
+ NestedNameSpecifier::SpecifierKind Kind
+ = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
+ switch (Kind) {
+ case NestedNameSpecifier::Identifier: {
+ IdentifierInfo *II = GetIdentifierInfo(Record, Idx);
+ NNS = NestedNameSpecifier::Create(*Context, Prev, II);
+ break;
+ }
+
+ case NestedNameSpecifier::Namespace: {
+ NamespaceDecl *NS = cast<NamespaceDecl>(GetDecl(Record[Idx++]));
+ NNS = NestedNameSpecifier::Create(*Context, Prev, NS);
+ break;
+ }
+
+ case NestedNameSpecifier::TypeSpec:
+ case NestedNameSpecifier::TypeSpecWithTemplate: {
+ Type *T = GetType(Record[Idx++]).getTypePtr();
+ bool Template = Record[Idx++];
+ NNS = NestedNameSpecifier::Create(*Context, Prev, Template, T);
+ break;
+ }
+
+ case NestedNameSpecifier::Global: {
+ NNS = NestedNameSpecifier::GlobalSpecifier(*Context);
+ // No associated value, and there can't be a prefix.
+ break;
+ }
+ }
+ Prev = NNS;
+ }
+ return NNS;
+}
+
+SourceRange
+PCHReader::ReadSourceRange(const RecordData &Record, unsigned &Idx) {
+ SourceLocation beg = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation end = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ return SourceRange(beg, end);
+}
+
+/// \brief Read an integral value
+llvm::APInt PCHReader::ReadAPInt(const RecordData &Record, unsigned &Idx) {
+ unsigned BitWidth = Record[Idx++];
+ unsigned NumWords = llvm::APInt::getNumWords(BitWidth);
+ llvm::APInt Result(BitWidth, NumWords, &Record[Idx]);
+ Idx += NumWords;
+ return Result;
+}
+
+/// \brief Read a signed integral value
+llvm::APSInt PCHReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) {
+ bool isUnsigned = Record[Idx++];
+ return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned);
+}
+
+/// \brief Read a floating-point value
+llvm::APFloat PCHReader::ReadAPFloat(const RecordData &Record, unsigned &Idx) {
+ return llvm::APFloat(ReadAPInt(Record, Idx));
+}
+
+// \brief Read a string
+std::string PCHReader::ReadString(const RecordData &Record, unsigned &Idx) {
+ unsigned Len = Record[Idx++];
+ std::string Result(Record.data() + Idx, Record.data() + Idx + Len);
+ Idx += Len;
+ return Result;
+}
+
+CXXTemporary *PCHReader::ReadCXXTemporary(const RecordData &Record,
+ unsigned &Idx) {
+ CXXDestructorDecl *Decl = cast<CXXDestructorDecl>(GetDecl(Record[Idx++]));
+ return CXXTemporary::Create(*Context, Decl);
+}
+
+DiagnosticBuilder PCHReader::Diag(unsigned DiagID) {
+ return Diag(SourceLocation(), DiagID);
+}
+
+DiagnosticBuilder PCHReader::Diag(SourceLocation Loc, unsigned DiagID) {
+ return Diags.Report(FullSourceLoc(Loc, SourceMgr), DiagID);
+}
+
+/// \brief Retrieve the identifier table associated with the
+/// preprocessor.
+IdentifierTable &PCHReader::getIdentifierTable() {
+ assert(PP && "Forgot to set Preprocessor ?");
+ return PP->getIdentifierTable();
+}
+
+/// \brief Record that the given ID maps to the given switch-case
+/// statement.
+void PCHReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) {
+ assert(SwitchCaseStmts[ID] == 0 && "Already have a SwitchCase with this ID");
+ SwitchCaseStmts[ID] = SC;
+}
+
+/// \brief Retrieve the switch-case statement with the given ID.
+SwitchCase *PCHReader::getSwitchCaseWithID(unsigned ID) {
+ assert(SwitchCaseStmts[ID] != 0 && "No SwitchCase with this ID");
+ return SwitchCaseStmts[ID];
+}
+
+/// \brief Record that the given label statement has been
+/// deserialized and has the given ID.
+void PCHReader::RecordLabelStmt(LabelStmt *S, unsigned ID) {
+ assert(LabelStmts.find(ID) == LabelStmts.end() &&
+ "Deserialized label twice");
+ LabelStmts[ID] = S;
+
+ // If we've already seen any goto statements that point to this
+ // label, resolve them now.
+ typedef std::multimap<unsigned, GotoStmt *>::iterator GotoIter;
+ std::pair<GotoIter, GotoIter> Gotos = UnresolvedGotoStmts.equal_range(ID);
+ for (GotoIter Goto = Gotos.first; Goto != Gotos.second; ++Goto)
+ Goto->second->setLabel(S);
+ UnresolvedGotoStmts.erase(Gotos.first, Gotos.second);
+
+ // If we've already seen any address-label statements that point to
+ // this label, resolve them now.
+ typedef std::multimap<unsigned, AddrLabelExpr *>::iterator AddrLabelIter;
+ std::pair<AddrLabelIter, AddrLabelIter> AddrLabels
+ = UnresolvedAddrLabelExprs.equal_range(ID);
+ for (AddrLabelIter AddrLabel = AddrLabels.first;
+ AddrLabel != AddrLabels.second; ++AddrLabel)
+ AddrLabel->second->setLabel(S);
+ UnresolvedAddrLabelExprs.erase(AddrLabels.first, AddrLabels.second);
+}
+
+/// \brief Set the label of the given statement to the label
+/// identified by ID.
+///
+/// Depending on the order in which the label and other statements
+/// referencing that label occur, this operation may complete
+/// immediately (updating the statement) or it may queue the
+/// statement to be back-patched later.
+void PCHReader::SetLabelOf(GotoStmt *S, unsigned ID) {
+ std::map<unsigned, LabelStmt *>::iterator Label = LabelStmts.find(ID);
+ if (Label != LabelStmts.end()) {
+ // We've already seen this label, so set the label of the goto and
+ // we're done.
+ S->setLabel(Label->second);
+ } else {
+ // We haven't seen this label yet, so add this goto to the set of
+ // unresolved goto statements.
+ UnresolvedGotoStmts.insert(std::make_pair(ID, S));
+ }
+}
+
+/// \brief Set the label of the given expression to the label
+/// identified by ID.
+///
+/// Depending on the order in which the label and other statements
+/// referencing that label occur, this operation may complete
+/// immediately (updating the statement) or it may queue the
+/// statement to be back-patched later.
+void PCHReader::SetLabelOf(AddrLabelExpr *S, unsigned ID) {
+ std::map<unsigned, LabelStmt *>::iterator Label = LabelStmts.find(ID);
+ if (Label != LabelStmts.end()) {
+ // We've already seen this label, so set the label of the
+ // label-address expression and we're done.
+ S->setLabel(Label->second);
+ } else {
+ // We haven't seen this label yet, so add this label-address
+ // expression to the set of unresolved label-address expressions.
+ UnresolvedAddrLabelExprs.insert(std::make_pair(ID, S));
+ }
+}
+
+void PCHReader::FinishedDeserializing() {
+ assert(NumCurrentElementsDeserializing &&
+ "FinishedDeserializing not paired with StartedDeserializing");
+ if (NumCurrentElementsDeserializing == 1) {
+ // If any identifiers with corresponding top-level declarations have
+ // been loaded, load those declarations now.
+ while (!PendingIdentifierInfos.empty()) {
+ SetGloballyVisibleDecls(PendingIdentifierInfos.front().II,
+ PendingIdentifierInfos.front().DeclIDs, true);
+ PendingIdentifierInfos.pop_front();
+ }
+
+ // We are not in recursive loading, so it's safe to pass the "interesting"
+ // decls to the consumer.
+ if (Consumer)
+ PassInterestingDeclsToConsumer();
+ }
+ --NumCurrentElementsDeserializing;
+}
diff --git a/clang/lib/Serialization/PCHReaderDecl.cpp b/clang/lib/Serialization/PCHReaderDecl.cpp
new file mode 100644
index 00000000000..9b27b036b69
--- /dev/null
+++ b/clang/lib/Serialization/PCHReaderDecl.cpp
@@ -0,0 +1,1600 @@
+//===--- PCHReaderDecl.cpp - Decl Deserialization ---------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the PCHReader::ReadDeclRecord method, which is the
+// entrypoint for loading a decl.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Serialization/PCHReader.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/DeclVisitor.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/Expr.h"
+using namespace clang;
+
+
+//===----------------------------------------------------------------------===//
+// Declaration deserialization
+//===----------------------------------------------------------------------===//
+
+namespace clang {
+ class PCHDeclReader : public DeclVisitor<PCHDeclReader, void> {
+ PCHReader &Reader;
+ llvm::BitstreamCursor &Cursor;
+ const pch::DeclID ThisDeclID;
+ const PCHReader::RecordData &Record;
+ unsigned &Idx;
+ pch::TypeID TypeIDForTypeDecl;
+
+ uint64_t GetCurrentCursorOffset();
+
+ public:
+ PCHDeclReader(PCHReader &Reader, llvm::BitstreamCursor &Cursor,
+ pch::DeclID thisDeclID, const PCHReader::RecordData &Record,
+ unsigned &Idx)
+ : Reader(Reader), Cursor(Cursor), ThisDeclID(thisDeclID), Record(Record),
+ Idx(Idx), TypeIDForTypeDecl(0) { }
+
+ void Visit(Decl *D);
+
+ void VisitDecl(Decl *D);
+ void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
+ void VisitNamedDecl(NamedDecl *ND);
+ void VisitNamespaceDecl(NamespaceDecl *D);
+ void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
+ void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
+ void VisitTypeDecl(TypeDecl *TD);
+ void VisitTypedefDecl(TypedefDecl *TD);
+ void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
+ void VisitTagDecl(TagDecl *TD);
+ void VisitEnumDecl(EnumDecl *ED);
+ void VisitRecordDecl(RecordDecl *RD);
+ void VisitCXXRecordDecl(CXXRecordDecl *D);
+ void VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D);
+ void VisitClassTemplatePartialSpecializationDecl(
+ ClassTemplatePartialSpecializationDecl *D);
+ void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
+ void VisitValueDecl(ValueDecl *VD);
+ void VisitEnumConstantDecl(EnumConstantDecl *ECD);
+ void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
+ void VisitDeclaratorDecl(DeclaratorDecl *DD);
+ void VisitFunctionDecl(FunctionDecl *FD);
+ void VisitCXXMethodDecl(CXXMethodDecl *D);
+ void VisitCXXConstructorDecl(CXXConstructorDecl *D);
+ void VisitCXXDestructorDecl(CXXDestructorDecl *D);
+ void VisitCXXConversionDecl(CXXConversionDecl *D);
+ void VisitFieldDecl(FieldDecl *FD);
+ void VisitVarDecl(VarDecl *VD);
+ void VisitImplicitParamDecl(ImplicitParamDecl *PD);
+ void VisitParmVarDecl(ParmVarDecl *PD);
+ void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
+ void VisitTemplateDecl(TemplateDecl *D);
+ void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
+ void VisitClassTemplateDecl(ClassTemplateDecl *D);
+ void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
+ void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
+ void VisitUsingDecl(UsingDecl *D);
+ void VisitUsingShadowDecl(UsingShadowDecl *D);
+ void VisitLinkageSpecDecl(LinkageSpecDecl *D);
+ void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
+ void VisitAccessSpecDecl(AccessSpecDecl *D);
+ void VisitFriendDecl(FriendDecl *D);
+ void VisitFriendTemplateDecl(FriendTemplateDecl *D);
+ void VisitStaticAssertDecl(StaticAssertDecl *D);
+ void VisitBlockDecl(BlockDecl *BD);
+
+ std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
+ template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
+
+ // FIXME: Reorder according to DeclNodes.td?
+ void VisitObjCMethodDecl(ObjCMethodDecl *D);
+ void VisitObjCContainerDecl(ObjCContainerDecl *D);
+ void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
+ void VisitObjCIvarDecl(ObjCIvarDecl *D);
+ void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
+ void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
+ void VisitObjCClassDecl(ObjCClassDecl *D);
+ void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
+ void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
+ void VisitObjCImplDecl(ObjCImplDecl *D);
+ void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
+ void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
+ void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
+ void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
+ void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
+ };
+}
+
+uint64_t PCHDeclReader::GetCurrentCursorOffset() {
+ uint64_t Off = 0;
+ for (unsigned I = 0, N = Reader.Chain.size(); I != N; ++I) {
+ PCHReader::PerFileData &F = *Reader.Chain[N - I - 1];
+ if (&Cursor == &F.DeclsCursor) {
+ Off += F.DeclsCursor.GetCurrentBitNo();
+ break;
+ }
+ Off += F.SizeInBits;
+ }
+ return Off;
+}
+
+void PCHDeclReader::Visit(Decl *D) {
+ DeclVisitor<PCHDeclReader, void>::Visit(D);
+
+ if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) {
+ // if we have a fully initialized TypeDecl, we can safely read its type now.
+ TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtr());
+ } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
+ // FunctionDecl's body was written last after all other Stmts/Exprs.
+ if (Record[Idx++])
+ FD->setLazyBody(GetCurrentCursorOffset());
+ }
+}
+
+void PCHDeclReader::VisitDecl(Decl *D) {
+ D->setDeclContext(cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
+ D->setLexicalDeclContext(
+ cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
+ D->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ D->setInvalidDecl(Record[Idx++]);
+ if (Record[Idx++])
+ D->initAttrs(Reader.ReadAttributes(Cursor));
+ D->setImplicit(Record[Idx++]);
+ D->setUsed(Record[Idx++]);
+ D->setAccess((AccessSpecifier)Record[Idx++]);
+ D->setPCHLevel(Record[Idx++] + 1);
+}
+
+void PCHDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
+ VisitDecl(TU);
+ TU->setAnonymousNamespace(
+ cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitNamedDecl(NamedDecl *ND) {
+ VisitDecl(ND);
+ ND->setDeclName(Reader.ReadDeclarationName(Record, Idx));
+}
+
+void PCHDeclReader::VisitTypeDecl(TypeDecl *TD) {
+ VisitNamedDecl(TD);
+ // Delay type reading until after we have fully initialized the decl.
+ TypeIDForTypeDecl = Record[Idx++];
+}
+
+void PCHDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
+ VisitTypeDecl(TD);
+ TD->setTypeSourceInfo(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+}
+
+void PCHDeclReader::VisitTagDecl(TagDecl *TD) {
+ VisitTypeDecl(TD);
+ TD->IdentifierNamespace = Record[Idx++];
+ VisitRedeclarable(TD);
+ TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
+ TD->setDefinition(Record[Idx++]);
+ TD->setEmbeddedInDeclarator(Record[Idx++]);
+ TD->setRBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TD->setTagKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ // FIXME: maybe read optional qualifier and its range.
+ TD->setTypedefForAnonDecl(
+ cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitEnumDecl(EnumDecl *ED) {
+ VisitTagDecl(ED);
+ ED->setIntegerType(Reader.GetType(Record[Idx++]));
+ ED->setPromotionType(Reader.GetType(Record[Idx++]));
+ ED->setNumPositiveBits(Record[Idx++]);
+ ED->setNumNegativeBits(Record[Idx++]);
+ ED->setInstantiationOfMemberEnum(
+ cast_or_null<EnumDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitRecordDecl(RecordDecl *RD) {
+ VisitTagDecl(RD);
+ RD->setHasFlexibleArrayMember(Record[Idx++]);
+ RD->setAnonymousStructOrUnion(Record[Idx++]);
+ RD->setHasObjectMember(Record[Idx++]);
+}
+
+void PCHDeclReader::VisitValueDecl(ValueDecl *VD) {
+ VisitNamedDecl(VD);
+ VD->setType(Reader.GetType(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) {
+ VisitValueDecl(ECD);
+ if (Record[Idx++])
+ ECD->setInitExpr(Reader.ReadExpr(Cursor));
+ ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
+}
+
+void PCHDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
+ VisitValueDecl(DD);
+ TypeSourceInfo *TInfo = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ if (TInfo)
+ DD->setTypeSourceInfo(TInfo);
+ // FIXME: read optional qualifier and its range.
+}
+
+void PCHDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
+ VisitDeclaratorDecl(FD);
+ // FIXME: read DeclarationNameLoc.
+
+ FD->IdentifierNamespace = Record[Idx++];
+ switch ((FunctionDecl::TemplatedKind)Record[Idx++]) {
+ default: assert(false && "Unhandled TemplatedKind!");
+ break;
+ case FunctionDecl::TK_NonTemplate:
+ break;
+ case FunctionDecl::TK_FunctionTemplate:
+ FD->setDescribedFunctionTemplate(
+ cast<FunctionTemplateDecl>(Reader.GetDecl(Record[Idx++])));
+ break;
+ case FunctionDecl::TK_MemberSpecialization: {
+ FunctionDecl *InstFD = cast<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ FD->setInstantiationOfMemberFunction(InstFD, TSK);
+ FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
+ break;
+ }
+ case FunctionDecl::TK_FunctionTemplateSpecialization: {
+ FunctionTemplateDecl *Template
+ = cast<FunctionTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+
+ // Template arguments.
+ llvm::SmallVector<TemplateArgument, 8> TemplArgs;
+ Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
+
+ // Template args as written.
+ llvm::SmallVector<TemplateArgumentLoc, 8> TemplArgLocs;
+ SourceLocation LAngleLoc, RAngleLoc;
+ if (Record[Idx++]) { // TemplateArgumentsAsWritten != 0
+ unsigned NumTemplateArgLocs = Record[Idx++];
+ TemplArgLocs.reserve(NumTemplateArgLocs);
+ for (unsigned i=0; i != NumTemplateArgLocs; ++i)
+ TemplArgLocs.push_back(
+ Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx));
+
+ LAngleLoc = Reader.ReadSourceLocation(Record, Idx);
+ RAngleLoc = Reader.ReadSourceLocation(Record, Idx);
+ }
+
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+
+ if (FD->isCanonicalDecl()) // if canonical add to template's set.
+ FD->setFunctionTemplateSpecialization(Template, TemplArgs.size(),
+ TemplArgs.data(), TSK,
+ TemplArgLocs.size(),
+ TemplArgLocs.data(),
+ LAngleLoc, RAngleLoc, POI);
+ break;
+ }
+ case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
+ // Templates.
+ UnresolvedSet<8> TemplDecls;
+ unsigned NumTemplates = Record[Idx++];
+ while (NumTemplates--)
+ TemplDecls.addDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+
+ // Templates args.
+ TemplateArgumentListInfo TemplArgs;
+ unsigned NumArgs = Record[Idx++];
+ while (NumArgs--)
+ TemplArgs.addArgument(Reader.ReadTemplateArgumentLoc(Cursor,Record, Idx));
+ TemplArgs.setLAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+ TemplArgs.setRAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+
+ FD->setDependentTemplateSpecialization(*Reader.getContext(),
+ TemplDecls, TemplArgs);
+ break;
+ }
+ }
+
+ // FunctionDecl's body is handled last at PCHReaderDecl::Visit,
+ // after everything else is read.
+
+ VisitRedeclarable(FD);
+ FD->setStorageClass((FunctionDecl::StorageClass)Record[Idx++]);
+ FD->setStorageClassAsWritten((FunctionDecl::StorageClass)Record[Idx++]);
+ FD->setInlineSpecified(Record[Idx++]);
+ FD->setVirtualAsWritten(Record[Idx++]);
+ FD->setPure(Record[Idx++]);
+ FD->setHasInheritedPrototype(Record[Idx++]);
+ FD->setHasWrittenPrototype(Record[Idx++]);
+ FD->setDeleted(Record[Idx++]);
+ FD->setTrivial(Record[Idx++]);
+ FD->setCopyAssignment(Record[Idx++]);
+ FD->setHasImplicitReturnZero(Record[Idx++]);
+ FD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+
+ // Read in the parameters.
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<ParmVarDecl *, 16> Params;
+ Params.reserve(NumParams);
+ for (unsigned I = 0; I != NumParams; ++I)
+ Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ FD->setParams(Params.data(), NumParams);
+}
+
+void PCHDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) {
+ VisitNamedDecl(MD);
+ if (Record[Idx++]) {
+ // In practice, this won't be executed (since method definitions
+ // don't occur in header files).
+ MD->setBody(Reader.ReadStmt(Cursor));
+ MD->setSelfDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++])));
+ MD->setCmdDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++])));
+ }
+ MD->setInstanceMethod(Record[Idx++]);
+ MD->setVariadic(Record[Idx++]);
+ MD->setSynthesized(Record[Idx++]);
+ MD->setDefined(Record[Idx++]);
+ MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]);
+ MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
+ MD->setNumSelectorArgs(unsigned(Record[Idx++]));
+ MD->setResultType(Reader.GetType(Record[Idx++]));
+ MD->setResultTypeSourceInfo(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+ MD->setEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<ParmVarDecl *, 16> Params;
+ Params.reserve(NumParams);
+ for (unsigned I = 0; I != NumParams; ++I)
+ Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ MD->setMethodParams(*Reader.getContext(), Params.data(), NumParams,
+ NumParams);
+}
+
+void PCHDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
+ VisitNamedDecl(CD);
+ SourceLocation A = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation B = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ CD->setAtEndRange(SourceRange(A, B));
+}
+
+void PCHDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) {
+ VisitObjCContainerDecl(ID);
+ ID->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr());
+ ID->setSuperClass(cast_or_null<ObjCInterfaceDecl>
+ (Reader.GetDecl(Record[Idx++])));
+ unsigned NumProtocols = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> Protocols;
+ Protocols.reserve(NumProtocols);
+ for (unsigned I = 0; I != NumProtocols; ++I)
+ Protocols.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtocols);
+ for (unsigned I = 0; I != NumProtocols; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ ID->setProtocolList(Protocols.data(), NumProtocols, ProtoLocs.data(),
+ *Reader.getContext());
+ unsigned NumIvars = Record[Idx++];
+ llvm::SmallVector<ObjCIvarDecl *, 16> IVars;
+ IVars.reserve(NumIvars);
+ for (unsigned I = 0; I != NumIvars; ++I)
+ IVars.push_back(cast<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+ ID->setCategoryList(
+ cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
+ ID->setForwardDecl(Record[Idx++]);
+ ID->setImplicitInterfaceDecl(Record[Idx++]);
+ ID->setClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ ID->setSuperClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ ID->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) {
+ VisitFieldDecl(IVD);
+ IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record[Idx++]);
+ bool synth = Record[Idx++];
+ IVD->setSynthesize(synth);
+}
+
+void PCHDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) {
+ VisitObjCContainerDecl(PD);
+ PD->setForwardDecl(Record[Idx++]);
+ PD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ unsigned NumProtoRefs = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
+ ProtoRefs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
+ *Reader.getContext());
+}
+
+void PCHDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) {
+ VisitFieldDecl(FD);
+}
+
+void PCHDeclReader::VisitObjCClassDecl(ObjCClassDecl *CD) {
+ VisitDecl(CD);
+ unsigned NumClassRefs = Record[Idx++];
+ llvm::SmallVector<ObjCInterfaceDecl *, 16> ClassRefs;
+ ClassRefs.reserve(NumClassRefs);
+ for (unsigned I = 0; I != NumClassRefs; ++I)
+ ClassRefs.push_back(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> SLocs;
+ SLocs.reserve(NumClassRefs);
+ for (unsigned I = 0; I != NumClassRefs; ++I)
+ SLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ CD->setClassList(*Reader.getContext(), ClassRefs.data(), SLocs.data(),
+ NumClassRefs);
+}
+
+void PCHDeclReader::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *FPD) {
+ VisitDecl(FPD);
+ unsigned NumProtoRefs = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
+ ProtoRefs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ FPD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
+ *Reader.getContext());
+}
+
+void PCHDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
+ VisitObjCContainerDecl(CD);
+ CD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ unsigned NumProtoRefs = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
+ ProtoRefs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
+ *Reader.getContext());
+ CD->setNextClassCategory(cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
+ CD->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ CD->setCategoryNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
+ VisitNamedDecl(CAD);
+ CAD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
+ VisitNamedDecl(D);
+ D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ D->setType(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+ // FIXME: stable encoding
+ D->setPropertyAttributes(
+ (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
+ D->setPropertyAttributesAsWritten(
+ (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
+ // FIXME: stable encoding
+ D->setPropertyImplementation(
+ (ObjCPropertyDecl::PropertyControl)Record[Idx++]);
+ D->setGetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector());
+ D->setSetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector());
+ D->setGetterMethodDecl(
+ cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setSetterMethodDecl(
+ cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setPropertyIvarDecl(
+ cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
+ VisitObjCContainerDecl(D);
+ D->setClassInterface(
+ cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
+ VisitObjCImplDecl(D);
+ D->setIdentifier(Reader.GetIdentifierInfo(Record, Idx));
+}
+
+void PCHDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
+ VisitObjCImplDecl(D);
+ D->setSuperClass(
+ cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
+ = Reader.ReadCXXBaseOrMemberInitializers(Cursor, Record, Idx);
+}
+
+
+void PCHDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
+ VisitDecl(D);
+ D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ D->setPropertyDecl(
+ cast_or_null<ObjCPropertyDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setPropertyIvarDecl(
+ cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setGetterCXXConstructor(Reader.ReadExpr(Cursor));
+ D->setSetterCXXAssignment(Reader.ReadExpr(Cursor));
+}
+
+void PCHDeclReader::VisitFieldDecl(FieldDecl *FD) {
+ VisitDeclaratorDecl(FD);
+ FD->setMutable(Record[Idx++]);
+ if (Record[Idx++])
+ FD->setBitWidth(Reader.ReadExpr(Cursor));
+ if (!FD->getDeclName()) {
+ FieldDecl *Tmpl = cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++]));
+ if (Tmpl)
+ Reader.getContext()->setInstantiatedFromUnnamedFieldDecl(FD, Tmpl);
+ }
+}
+
+void PCHDeclReader::VisitVarDecl(VarDecl *VD) {
+ VisitDeclaratorDecl(VD);
+ VD->setStorageClass((VarDecl::StorageClass)Record[Idx++]);
+ VD->setStorageClassAsWritten((VarDecl::StorageClass)Record[Idx++]);
+ VD->setThreadSpecified(Record[Idx++]);
+ VD->setCXXDirectInitializer(Record[Idx++]);
+ VD->setExceptionVariable(Record[Idx++]);
+ VD->setNRVOVariable(Record[Idx++]);
+ VisitRedeclarable(VD);
+ if (Record[Idx++])
+ VD->setInit(Reader.ReadExpr(Cursor));
+
+ if (Record[Idx++]) { // HasMemberSpecializationInfo.
+ VarDecl *Tmpl = cast<VarDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ Reader.getContext()->setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI);
+ }
+}
+
+void PCHDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
+ VisitVarDecl(PD);
+}
+
+void PCHDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
+ VisitVarDecl(PD);
+ PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
+ PD->setHasInheritedDefaultArg(Record[Idx++]);
+ if (Record[Idx++]) // hasUninstantiatedDefaultArg.
+ PD->setUninstantiatedDefaultArg(Reader.ReadExpr(Cursor));
+}
+
+void PCHDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
+ VisitDecl(AD);
+ AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr(Cursor)));
+}
+
+void PCHDeclReader::VisitBlockDecl(BlockDecl *BD) {
+ VisitDecl(BD);
+ BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt(Cursor)));
+ BD->setSignatureAsWritten(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<ParmVarDecl *, 16> Params;
+ Params.reserve(NumParams);
+ for (unsigned I = 0; I != NumParams; ++I)
+ Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ BD->setParams(Params.data(), NumParams);
+}
+
+void PCHDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
+ VisitDecl(D);
+ D->setLanguage((LinkageSpecDecl::LanguageIDs)Record[Idx++]);
+ D->setHasBraces(Record[Idx++]);
+}
+
+void PCHDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
+ VisitNamedDecl(D);
+ D->setLBracLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setRBracLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setNextNamespace(
+ cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
+
+ bool IsOriginal = Record[Idx++];
+ D->OrigOrAnonNamespace.setInt(IsOriginal);
+ D->OrigOrAnonNamespace.setPointer(
+ cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
+ VisitNamedDecl(D);
+
+ D->setAliasLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ D->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ D->setTargetNameLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setAliasedNamespace(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitUsingDecl(UsingDecl *D) {
+ VisitNamedDecl(D);
+ D->setUsingLocation(Reader.ReadSourceLocation(Record, Idx));
+ D->setNestedNameRange(Reader.ReadSourceRange(Record, Idx));
+ D->setTargetNestedNameDecl(Reader.ReadNestedNameSpecifier(Record, Idx));
+ // FIXME: read the DNLoc component.
+
+ // FIXME: It would probably be more efficient to read these into a vector
+ // and then re-cosntruct the shadow decl set over that vector since it
+ // would avoid existence checks.
+ unsigned NumShadows = Record[Idx++];
+ for(unsigned I = 0; I != NumShadows; ++I) {
+ // Avoid invariant checking of UsingDecl::addShadowDecl, the decl may still
+ // be initializing.
+ D->Shadows.insert(cast<UsingShadowDecl>(Reader.GetDecl(Record[Idx++])));
+ }
+ D->setTypeName(Record[Idx++]);
+ NamedDecl *Pattern = cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ if (Pattern)
+ Reader.getContext()->setInstantiatedFromUsingDecl(D, Pattern);
+}
+
+void PCHDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) {
+ VisitNamedDecl(D);
+ D->setTargetDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setUsingDecl(cast<UsingDecl>(Reader.GetDecl(Record[Idx++])));
+ UsingShadowDecl *Pattern
+ = cast_or_null<UsingShadowDecl>(Reader.GetDecl(Record[Idx++]));
+ if (Pattern)
+ Reader.getContext()->setInstantiatedFromUsingShadowDecl(D, Pattern);
+}
+
+void PCHDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
+ VisitNamedDecl(D);
+ D->setNamespaceKeyLocation(Reader.ReadSourceLocation(Record, Idx));
+ D->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ D->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ D->setIdentLocation(Reader.ReadSourceLocation(Record, Idx));
+ D->setNominatedNamespace(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setCommonAncestor(cast_or_null<DeclContext>(
+ Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
+ VisitValueDecl(D);
+ D->setTargetNestedNameRange(Reader.ReadSourceRange(Record, Idx));
+ D->setUsingLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTargetNestedNameSpecifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ // FIXME: read the DNLoc component.
+}
+
+void PCHDeclReader::VisitUnresolvedUsingTypenameDecl(
+ UnresolvedUsingTypenameDecl *D) {
+ VisitTypeDecl(D);
+ D->setTargetNestedNameRange(Reader.ReadSourceRange(Record, Idx));
+ D->setUsingLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTypenameLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTargetNestedNameSpecifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+}
+
+void PCHDeclReader::VisitCXXRecordDecl(CXXRecordDecl *D) {
+ ASTContext &C = *Reader.getContext();
+
+ // We need to allocate the DefinitionData struct ahead of VisitRecordDecl
+ // so that the other CXXRecordDecls can get a pointer even when the owner
+ // is still initializing.
+ bool OwnsDefinitionData = false;
+ enum DataOwnership { Data_NoDefData, Data_Owner, Data_NotOwner };
+ switch ((DataOwnership)Record[Idx++]) {
+ default:
+ assert(0 && "Out of sync with PCHDeclWriter or messed up reading");
+ case Data_NoDefData:
+ break;
+ case Data_Owner:
+ OwnsDefinitionData = true;
+ D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
+ break;
+ case Data_NotOwner:
+ D->DefinitionData
+ = cast<CXXRecordDecl>(Reader.GetDecl(Record[Idx++]))->DefinitionData;
+ break;
+ }
+
+ VisitRecordDecl(D);
+
+ if (OwnsDefinitionData) {
+ assert(D->DefinitionData);
+ struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData;
+
+ Data.UserDeclaredConstructor = Record[Idx++];
+ Data.UserDeclaredCopyConstructor = Record[Idx++];
+ Data.UserDeclaredCopyAssignment = Record[Idx++];
+ Data.UserDeclaredDestructor = Record[Idx++];
+ Data.Aggregate = Record[Idx++];
+ Data.PlainOldData = Record[Idx++];
+ Data.Empty = Record[Idx++];
+ Data.Polymorphic = Record[Idx++];
+ Data.Abstract = Record[Idx++];
+ Data.HasTrivialConstructor = Record[Idx++];
+ Data.HasTrivialCopyConstructor = Record[Idx++];
+ Data.HasTrivialCopyAssignment = Record[Idx++];
+ Data.HasTrivialDestructor = Record[Idx++];
+ Data.ComputedVisibleConversions = Record[Idx++];
+ Data.DeclaredDefaultConstructor = Record[Idx++];
+ Data.DeclaredCopyConstructor = Record[Idx++];
+ Data.DeclaredCopyAssignment = Record[Idx++];
+ Data.DeclaredDestructor = Record[Idx++];
+
+ // setBases() is unsuitable since it may try to iterate the bases of an
+ // uninitialized base.
+ Data.NumBases = Record[Idx++];
+ Data.Bases = new(C) CXXBaseSpecifier [Data.NumBases];
+ for (unsigned i = 0; i != Data.NumBases; ++i)
+ Data.Bases[i] = Reader.ReadCXXBaseSpecifier(Cursor, Record, Idx);
+
+ // FIXME: Make VBases lazily computed when needed to avoid storing them.
+ Data.NumVBases = Record[Idx++];
+ Data.VBases = new(C) CXXBaseSpecifier [Data.NumVBases];
+ for (unsigned i = 0; i != Data.NumVBases; ++i)
+ Data.VBases[i] = Reader.ReadCXXBaseSpecifier(Cursor, Record, Idx);
+
+ Reader.ReadUnresolvedSet(Data.Conversions, Record, Idx);
+ Reader.ReadUnresolvedSet(Data.VisibleConversions, Record, Idx);
+ assert(Data.Definition && "Data.Definition should be already set!");
+ Data.FirstFriend
+ = cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
+ }
+
+ enum CXXRecKind {
+ CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
+ };
+ switch ((CXXRecKind)Record[Idx++]) {
+ default:
+ assert(false && "Out of sync with PCHDeclWriter::VisitCXXRecordDecl?");
+ case CXXRecNotTemplate:
+ break;
+ case CXXRecTemplate:
+ D->setDescribedClassTemplate(
+ cast<ClassTemplateDecl>(Reader.GetDecl(Record[Idx++])));
+ break;
+ case CXXRecMemberSpecialization: {
+ CXXRecordDecl *RD = cast<CXXRecordDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ D->setInstantiationOfMemberClass(RD, TSK);
+ D->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
+ break;
+ }
+ }
+}
+
+void PCHDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
+ VisitFunctionDecl(D);
+ unsigned NumOverridenMethods = Record[Idx++];
+ while (NumOverridenMethods--) {
+ CXXMethodDecl *MD = cast<CXXMethodDecl>(Reader.GetDecl(Record[Idx++]));
+ // Avoid invariant checking of CXXMethodDecl::addOverriddenMethod,
+ // MD may be initializing.
+ Reader.getContext()->addOverriddenMethod(D, MD);
+ }
+}
+
+void PCHDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ D->IsExplicitSpecified = Record[Idx++];
+ D->ImplicitlyDefined = Record[Idx++];
+ llvm::tie(D->BaseOrMemberInitializers, D->NumBaseOrMemberInitializers)
+ = Reader.ReadCXXBaseOrMemberInitializers(Cursor, Record, Idx);
+}
+
+void PCHDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ D->ImplicitlyDefined = Record[Idx++];
+ D->OperatorDelete = cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
+ VisitCXXMethodDecl(D);
+ D->IsExplicitSpecified = Record[Idx++];
+}
+
+void PCHDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) {
+ VisitDecl(D);
+ D->setColonLoc(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void PCHDeclReader::VisitFriendDecl(FriendDecl *D) {
+ VisitDecl(D);
+ if (Record[Idx++])
+ D->Friend = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ else
+ D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ D->NextFriend = cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
+ D->FriendLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
+ VisitDecl(D);
+ unsigned NumParams = Record[Idx++];
+ D->NumParams = NumParams;
+ D->Params = new TemplateParameterList*[NumParams];
+ for (unsigned i = 0; i != NumParams; ++i)
+ D->Params[i] = Reader.ReadTemplateParameterList(Record, Idx);
+ if (Record[Idx++]) // HasFriendDecl
+ D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ else
+ D->Friend = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ D->FriendLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHDeclReader::VisitTemplateDecl(TemplateDecl *D) {
+ VisitNamedDecl(D);
+
+ NamedDecl *TemplatedDecl
+ = cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateParameterList* TemplateParams
+ = Reader.ReadTemplateParameterList(Record, Idx);
+ D->init(TemplatedDecl, TemplateParams);
+}
+
+void PCHDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
+ VisitTemplateDecl(D);
+
+ D->IdentifierNamespace = Record[Idx++];
+ RedeclarableTemplateDecl *PrevDecl =
+ cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+ assert((PrevDecl == 0 || PrevDecl->getKind() == D->getKind()) &&
+ "PrevDecl kind mismatch");
+ if (PrevDecl)
+ D->CommonOrPrev = PrevDecl;
+ if (PrevDecl == 0) {
+ if (RedeclarableTemplateDecl *RTD
+ = cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]))) {
+ assert(RTD->getKind() == D->getKind() &&
+ "InstantiatedFromMemberTemplate kind mismatch");
+ D->setInstantiatedFromMemberTemplateImpl(RTD);
+ if (Record[Idx++])
+ D->setMemberSpecialization();
+ }
+
+ RedeclarableTemplateDecl *LatestDecl =
+ cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+
+ // This decl is a first one and the latest declaration that it points to is
+ // in the same PCH. However, if this actually needs to point to a
+ // redeclaration in another chained PCH, we need to update it by checking
+ // the FirstLatestDeclIDs map which tracks this kind of decls.
+ assert(Reader.GetDecl(ThisDeclID) == D && "Invalid ThisDeclID ?");
+ PCHReader::FirstLatestDeclIDMap::iterator I
+ = Reader.FirstLatestDeclIDs.find(ThisDeclID);
+ if (I != Reader.FirstLatestDeclIDs.end()) {
+ Decl *NewLatest = Reader.GetDecl(I->second);
+ assert((LatestDecl->getLocation().isInvalid() ||
+ NewLatest->getLocation().isInvalid() ||
+ Reader.SourceMgr.isBeforeInTranslationUnit(
+ LatestDecl->getLocation(),
+ NewLatest->getLocation())) &&
+ "The new latest is supposed to come after the previous latest");
+ LatestDecl = cast<RedeclarableTemplateDecl>(NewLatest);
+ }
+
+ assert(LatestDecl->getKind() == D->getKind() && "Latest kind mismatch");
+ D->getCommonPtr()->Latest = LatestDecl;
+ }
+}
+
+void PCHDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->getPreviousDeclaration() == 0) {
+ // This ClassTemplateDecl owns a CommonPtr; read it.
+
+ // FoldingSets are filled in VisitClassTemplateSpecializationDecl.
+ unsigned size = Record[Idx++];
+ while (size--)
+ cast<ClassTemplateSpecializationDecl>(Reader.GetDecl(Record[Idx++]));
+
+ size = Record[Idx++];
+ while (size--)
+ cast<ClassTemplatePartialSpecializationDecl>(
+ Reader.GetDecl(Record[Idx++]));
+
+ // InjectedClassNameType is computed.
+ }
+}
+
+void PCHDeclReader::VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D) {
+ VisitCXXRecordDecl(D);
+
+ if (Decl *InstD = Reader.GetDecl(Record[Idx++])) {
+ if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) {
+ D->setInstantiationOf(CTD);
+ } else {
+ llvm::SmallVector<TemplateArgument, 8> TemplArgs;
+ Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
+ D->setInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(InstD),
+ TemplArgs.data(), TemplArgs.size());
+ }
+ }
+
+ // Explicit info.
+ if (TypeSourceInfo *TyInfo = Reader.GetTypeSourceInfo(Cursor, Record, Idx)) {
+ D->setTypeAsWritten(TyInfo);
+ D->setExternLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTemplateKeywordLoc(Reader.ReadSourceLocation(Record, Idx));
+ }
+
+ llvm::SmallVector<TemplateArgument, 8> TemplArgs;
+ Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
+ D->initTemplateArgs(TemplArgs.data(), TemplArgs.size());
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ if (POI.isValid())
+ D->setPointOfInstantiation(POI);
+ D->setSpecializationKind((TemplateSpecializationKind)Record[Idx++]);
+
+ if (D->isCanonicalDecl()) { // It's kept in the folding set.
+ ClassTemplateDecl *CanonPattern
+ = cast<ClassTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+ if (ClassTemplatePartialSpecializationDecl *Partial
+ = dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
+ CanonPattern->getPartialSpecializations().InsertNode(Partial);
+ } else {
+ CanonPattern->getSpecializations().InsertNode(D);
+ }
+ }
+}
+
+void PCHDeclReader::VisitClassTemplatePartialSpecializationDecl(
+ ClassTemplatePartialSpecializationDecl *D) {
+ VisitClassTemplateSpecializationDecl(D);
+
+ D->initTemplateParameters(Reader.ReadTemplateParameterList(Record, Idx));
+
+ TemplateArgumentListInfo ArgInfos;
+ unsigned NumArgs = Record[Idx++];
+ while (NumArgs--)
+ ArgInfos.addArgument(Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx));
+ D->initTemplateArgsAsWritten(ArgInfos);
+
+ D->setSequenceNumber(Record[Idx++]);
+
+ // These are read/set from/to the first declaration.
+ if (D->getPreviousDeclaration() == 0) {
+ D->setInstantiatedFromMember(
+ cast_or_null<ClassTemplatePartialSpecializationDecl>(
+ Reader.GetDecl(Record[Idx++])));
+ if (Record[Idx++])
+ D->setMemberSpecialization();
+ }
+}
+
+void PCHDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->getPreviousDeclaration() == 0) {
+ // This FunctionTemplateDecl owns a CommonPtr; read it.
+
+ // Read the function specialization declarations.
+ // FunctionTemplateDecl's FunctionTemplateSpecializationInfos are filled
+ // through the specialized FunctionDecl's setFunctionTemplateSpecialization.
+ unsigned NumSpecs = Record[Idx++];
+ while (NumSpecs--)
+ Reader.GetDecl(Record[Idx++]);
+ }
+}
+
+void PCHDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
+ VisitTypeDecl(D);
+
+ D->setDeclaredWithTypename(Record[Idx++]);
+ D->setParameterPack(Record[Idx++]);
+
+ bool Inherited = Record[Idx++];
+ TypeSourceInfo *DefArg = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ D->setDefaultArgument(DefArg, Inherited);
+}
+
+void PCHDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
+ VisitVarDecl(D);
+ // TemplateParmPosition.
+ D->setDepth(Record[Idx++]);
+ D->setPosition(Record[Idx++]);
+ // Rest of NonTypeTemplateParmDecl.
+ if (Record[Idx++]) {
+ Expr *DefArg = Reader.ReadExpr(Cursor);
+ bool Inherited = Record[Idx++];
+ D->setDefaultArgument(DefArg, Inherited);
+ }
+}
+
+void PCHDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
+ VisitTemplateDecl(D);
+ // TemplateParmPosition.
+ D->setDepth(Record[Idx++]);
+ D->setPosition(Record[Idx++]);
+ // Rest of TemplateTemplateParmDecl.
+ TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx);
+ bool IsInherited = Record[Idx++];
+ D->setDefaultArgument(Arg, IsInherited);
+}
+
+void PCHDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
+ VisitDecl(D);
+ D->AssertExpr = Reader.ReadExpr(Cursor);
+ D->Message = cast<StringLiteral>(Reader.ReadExpr(Cursor));
+}
+
+std::pair<uint64_t, uint64_t>
+PCHDeclReader::VisitDeclContext(DeclContext *DC) {
+ uint64_t LexicalOffset = Record[Idx++];
+ uint64_t VisibleOffset = Record[Idx++];
+ return std::make_pair(LexicalOffset, VisibleOffset);
+}
+
+template <typename T>
+void PCHDeclReader::VisitRedeclarable(Redeclarable<T> *D) {
+ enum RedeclKind { NoRedeclaration = 0, PointsToPrevious, PointsToLatest };
+ RedeclKind Kind = (RedeclKind)Record[Idx++];
+ switch (Kind) {
+ default:
+ assert(0 && "Out of sync with PCHDeclWriter::VisitRedeclarable or messed up"
+ " reading");
+ case NoRedeclaration:
+ break;
+ case PointsToPrevious:
+ D->RedeclLink = typename Redeclarable<T>::PreviousDeclLink(
+ cast_or_null<T>(Reader.GetDecl(Record[Idx++])));
+ break;
+ case PointsToLatest:
+ D->RedeclLink = typename Redeclarable<T>::LatestDeclLink(
+ cast_or_null<T>(Reader.GetDecl(Record[Idx++])));
+ break;
+ }
+
+ assert(!(Kind == PointsToPrevious &&
+ Reader.FirstLatestDeclIDs.find(ThisDeclID) !=
+ Reader.FirstLatestDeclIDs.end()) &&
+ "This decl is not first, it should not be in the map");
+ if (Kind == PointsToPrevious)
+ return;
+
+ // This decl is a first one and the latest declaration that it points to is in
+ // the same PCH. However, if this actually needs to point to a redeclaration
+ // in another chained PCH, we need to update it by checking the
+ // FirstLatestDeclIDs map which tracks this kind of decls.
+ assert(Reader.GetDecl(ThisDeclID) == static_cast<T*>(D) &&
+ "Invalid ThisDeclID ?");
+ PCHReader::FirstLatestDeclIDMap::iterator I
+ = Reader.FirstLatestDeclIDs.find(ThisDeclID);
+ if (I != Reader.FirstLatestDeclIDs.end()) {
+ Decl *NewLatest = Reader.GetDecl(I->second);
+ assert((D->getMostRecentDeclaration()->getLocation().isInvalid() ||
+ NewLatest->getLocation().isInvalid() ||
+ Reader.SourceMgr.isBeforeInTranslationUnit(
+ D->getMostRecentDeclaration()->getLocation(),
+ NewLatest->getLocation())) &&
+ "The new latest is supposed to come after the previous latest");
+ D->RedeclLink
+ = typename Redeclarable<T>::LatestDeclLink(cast_or_null<T>(NewLatest));
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// Attribute Reading
+//===----------------------------------------------------------------------===//
+
+/// \brief Reads attributes from the current stream position.
+Attr *PCHReader::ReadAttributes(llvm::BitstreamCursor &DeclsCursor) {
+ unsigned Code = DeclsCursor.ReadCode();
+ assert(Code == llvm::bitc::UNABBREV_RECORD &&
+ "Expected unabbreviated record"); (void)Code;
+
+ RecordData Record;
+ unsigned Idx = 0;
+ unsigned RecCode = DeclsCursor.ReadRecord(Code, Record);
+ assert(RecCode == pch::DECL_ATTR && "Expected attribute record");
+ (void)RecCode;
+
+#define SIMPLE_ATTR(Name) \
+ case attr::Name: \
+ New = ::new (*Context) Name##Attr(); \
+ break
+
+#define STRING_ATTR(Name) \
+ case attr::Name: \
+ New = ::new (*Context) Name##Attr(*Context, ReadString(Record, Idx)); \
+ break
+
+#define UNSIGNED_ATTR(Name) \
+ case attr::Name: \
+ New = ::new (*Context) Name##Attr(Record[Idx++]); \
+ break
+
+ Attr *Attrs = 0;
+ while (Idx < Record.size()) {
+ Attr *New = 0;
+ attr::Kind Kind = (attr::Kind)Record[Idx++];
+ bool IsInherited = Record[Idx++];
+
+ switch (Kind) {
+ default:
+ assert(0 && "Unknown attribute!");
+ break;
+ STRING_ATTR(Alias);
+ SIMPLE_ATTR(AlignMac68k);
+ UNSIGNED_ATTR(Aligned);
+ SIMPLE_ATTR(AlwaysInline);
+ SIMPLE_ATTR(AnalyzerNoReturn);
+ STRING_ATTR(Annotate);
+ STRING_ATTR(AsmLabel);
+ SIMPLE_ATTR(BaseCheck);
+
+ case attr::Blocks:
+ New = ::new (*Context) BlocksAttr(
+ (BlocksAttr::BlocksAttrTypes)Record[Idx++]);
+ break;
+
+ SIMPLE_ATTR(CDecl);
+
+ case attr::Cleanup:
+ New = ::new (*Context) CleanupAttr(
+ cast<FunctionDecl>(GetDecl(Record[Idx++])));
+ break;
+
+ SIMPLE_ATTR(Const);
+ UNSIGNED_ATTR(Constructor);
+ SIMPLE_ATTR(DLLExport);
+ SIMPLE_ATTR(DLLImport);
+ SIMPLE_ATTR(Deprecated);
+ UNSIGNED_ATTR(Destructor);
+ SIMPLE_ATTR(FastCall);
+ SIMPLE_ATTR(Final);
+
+ case attr::Format: {
+ std::string Type = ReadString(Record, Idx);
+ unsigned FormatIdx = Record[Idx++];
+ unsigned FirstArg = Record[Idx++];
+ New = ::new (*Context) FormatAttr(*Context, Type, FormatIdx, FirstArg);
+ break;
+ }
+
+ case attr::FormatArg: {
+ unsigned FormatIdx = Record[Idx++];
+ New = ::new (*Context) FormatArgAttr(FormatIdx);
+ break;
+ }
+
+ case attr::Sentinel: {
+ int sentinel = Record[Idx++];
+ int nullPos = Record[Idx++];
+ New = ::new (*Context) SentinelAttr(sentinel, nullPos);
+ break;
+ }
+
+ SIMPLE_ATTR(GNUInline);
+ SIMPLE_ATTR(Hiding);
+
+ case attr::IBAction:
+ New = ::new (*Context) IBActionAttr();
+ break;
+
+ case attr::IBOutlet:
+ New = ::new (*Context) IBOutletAttr();
+ break;
+
+ case attr::IBOutletCollection: {
+ ObjCInterfaceDecl *D =
+ cast_or_null<ObjCInterfaceDecl>(GetDecl(Record[Idx++]));
+ New = ::new (*Context) IBOutletCollectionAttr(D);
+ break;
+ }
+
+ SIMPLE_ATTR(Malloc);
+ SIMPLE_ATTR(NoDebug);
+ SIMPLE_ATTR(NoInline);
+ SIMPLE_ATTR(NoReturn);
+ SIMPLE_ATTR(NoThrow);
+
+ case attr::NonNull: {
+ unsigned Size = Record[Idx++];
+ llvm::SmallVector<unsigned, 16> ArgNums;
+ ArgNums.insert(ArgNums.end(), &Record[Idx], &Record[Idx] + Size);
+ Idx += Size;
+ New = ::new (*Context) NonNullAttr(*Context, ArgNums.data(), Size);
+ break;
+ }
+
+ case attr::ReqdWorkGroupSize: {
+ unsigned X = Record[Idx++];
+ unsigned Y = Record[Idx++];
+ unsigned Z = Record[Idx++];
+ New = ::new (*Context) ReqdWorkGroupSizeAttr(X, Y, Z);
+ break;
+ }
+
+ SIMPLE_ATTR(ObjCException);
+ SIMPLE_ATTR(ObjCNSObject);
+ SIMPLE_ATTR(CFReturnsNotRetained);
+ SIMPLE_ATTR(CFReturnsRetained);
+ SIMPLE_ATTR(NSReturnsNotRetained);
+ SIMPLE_ATTR(NSReturnsRetained);
+ SIMPLE_ATTR(Overloadable);
+ SIMPLE_ATTR(Override);
+ SIMPLE_ATTR(Packed);
+ UNSIGNED_ATTR(MaxFieldAlignment);
+ SIMPLE_ATTR(Pure);
+ UNSIGNED_ATTR(Regparm);
+ STRING_ATTR(Section);
+ SIMPLE_ATTR(StdCall);
+ SIMPLE_ATTR(ThisCall);
+ SIMPLE_ATTR(TransparentUnion);
+ SIMPLE_ATTR(Unavailable);
+ SIMPLE_ATTR(Unused);
+ SIMPLE_ATTR(Used);
+
+ case attr::Visibility:
+ New = ::new (*Context) VisibilityAttr(
+ (VisibilityAttr::VisibilityTypes)Record[Idx++],
+ (bool)Record[Idx++]);
+ break;
+
+ SIMPLE_ATTR(WarnUnusedResult);
+ SIMPLE_ATTR(Weak);
+ SIMPLE_ATTR(WeakRef);
+ SIMPLE_ATTR(WeakImport);
+ }
+
+ assert(New && "Unable to decode attribute?");
+ New->setInherited(IsInherited);
+ New->setNext(Attrs);
+ Attrs = New;
+ }
+#undef UNSIGNED_ATTR
+#undef STRING_ATTR
+#undef SIMPLE_ATTR
+
+ // The list of attributes was built backwards. Reverse the list
+ // before returning it.
+ Attr *PrevAttr = 0, *NextAttr = 0;
+ while (Attrs) {
+ NextAttr = Attrs->getNext();
+ Attrs->setNext(PrevAttr);
+ PrevAttr = Attrs;
+ Attrs = NextAttr;
+ }
+
+ return PrevAttr;
+}
+
+//===----------------------------------------------------------------------===//
+// PCHReader Implementation
+//===----------------------------------------------------------------------===//
+
+/// \brief Note that we have loaded the declaration with the given
+/// Index.
+///
+/// This routine notes that this declaration has already been loaded,
+/// so that future GetDecl calls will return this declaration rather
+/// than trying to load a new declaration.
+inline void PCHReader::LoadedDecl(unsigned Index, Decl *D) {
+ assert(!DeclsLoaded[Index] && "Decl loaded twice?");
+ DeclsLoaded[Index] = D;
+}
+
+
+/// \brief Determine whether the consumer will be interested in seeing
+/// this declaration (via HandleTopLevelDecl).
+///
+/// This routine should return true for anything that might affect
+/// code generation, e.g., inline function definitions, Objective-C
+/// declarations with metadata, etc.
+static bool isConsumerInterestedIn(Decl *D) {
+ if (isa<FileScopeAsmDecl>(D))
+ return true;
+ if (VarDecl *Var = dyn_cast<VarDecl>(D))
+ return Var->isFileVarDecl() &&
+ Var->isThisDeclarationADefinition() == VarDecl::Definition;
+ if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D))
+ return Func->isThisDeclarationADefinition();
+ return isa<ObjCProtocolDecl>(D) || isa<ObjCImplementationDecl>(D);
+}
+
+/// \brief Get the correct cursor and offset for loading a type.
+PCHReader::RecordLocation
+PCHReader::DeclCursorForIndex(unsigned Index, pch::DeclID ID) {
+ // See if there's an override.
+ DeclReplacementMap::iterator It = ReplacedDecls.find(ID);
+ if (It != ReplacedDecls.end())
+ return RecordLocation(&It->second.first->DeclsCursor, It->second.second);
+
+ PerFileData *F = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ F = Chain[N - I - 1];
+ if (Index < F->LocalNumDecls)
+ break;
+ Index -= F->LocalNumDecls;
+ }
+ assert(F && F->LocalNumDecls > Index && "Broken chain");
+ return RecordLocation(&F->DeclsCursor, F->DeclOffsets[Index]);
+}
+
+/// \brief Read the declaration at the given offset from the PCH file.
+Decl *PCHReader::ReadDeclRecord(unsigned Index, pch::DeclID ID) {
+ RecordLocation Loc = DeclCursorForIndex(Index, ID);
+ llvm::BitstreamCursor &DeclsCursor = *Loc.first;
+ // Keep track of where we are in the stream, then jump back there
+ // after reading this declaration.
+ SavedStreamPosition SavedPosition(DeclsCursor);
+
+ ReadingKindTracker ReadingKind(Read_Decl, *this);
+
+ // Note that we are loading a declaration record.
+ Deserializing ADecl(this);
+
+ DeclsCursor.JumpToBit(Loc.second);
+ RecordData Record;
+ unsigned Code = DeclsCursor.ReadCode();
+ unsigned Idx = 0;
+ PCHDeclReader Reader(*this, DeclsCursor, ID, Record, Idx);
+
+ Decl *D = 0;
+ switch ((pch::DeclCode)DeclsCursor.ReadRecord(Code, Record)) {
+ case pch::DECL_ATTR:
+ case pch::DECL_CONTEXT_LEXICAL:
+ case pch::DECL_CONTEXT_VISIBLE:
+ assert(false && "Record cannot be de-serialized with ReadDeclRecord");
+ break;
+ case pch::DECL_TRANSLATION_UNIT:
+ assert(Index == 0 && "Translation unit must be at index 0");
+ D = Context->getTranslationUnitDecl();
+ break;
+ case pch::DECL_TYPEDEF:
+ D = TypedefDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_ENUM:
+ D = EnumDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_RECORD:
+ D = RecordDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_ENUM_CONSTANT:
+ D = EnumConstantDecl::Create(*Context, 0, SourceLocation(), 0, QualType(),
+ 0, llvm::APSInt());
+ break;
+ case pch::DECL_FUNCTION:
+ D = FunctionDecl::Create(*Context, 0, SourceLocation(), DeclarationName(),
+ QualType(), 0);
+ break;
+ case pch::DECL_LINKAGE_SPEC:
+ D = LinkageSpecDecl::Create(*Context, 0, SourceLocation(),
+ (LinkageSpecDecl::LanguageIDs)0,
+ false);
+ break;
+ case pch::DECL_NAMESPACE:
+ D = NamespaceDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_NAMESPACE_ALIAS:
+ D = NamespaceAliasDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), 0, SourceRange(), 0,
+ SourceLocation(), 0);
+ break;
+ case pch::DECL_USING:
+ D = UsingDecl::Create(*Context, 0, SourceRange(), SourceLocation(),
+ 0, DeclarationNameInfo(), false);
+ break;
+ case pch::DECL_USING_SHADOW:
+ D = UsingShadowDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_USING_DIRECTIVE:
+ D = UsingDirectiveDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), SourceRange(), 0,
+ SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_UNRESOLVED_USING_VALUE:
+ D = UnresolvedUsingValueDecl::Create(*Context, 0, SourceLocation(),
+ SourceRange(), 0,
+ DeclarationNameInfo());
+ break;
+ case pch::DECL_UNRESOLVED_USING_TYPENAME:
+ D = UnresolvedUsingTypenameDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), SourceRange(),
+ 0, SourceLocation(),
+ DeclarationName());
+ break;
+ case pch::DECL_CXX_RECORD:
+ D = CXXRecordDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CXX_METHOD:
+ D = CXXMethodDecl::Create(*Context, 0, DeclarationNameInfo(),
+ QualType(), 0);
+ break;
+ case pch::DECL_CXX_CONSTRUCTOR:
+ D = CXXConstructorDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CXX_DESTRUCTOR:
+ D = CXXDestructorDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CXX_CONVERSION:
+ D = CXXConversionDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_ACCESS_SPEC:
+ D = AccessSpecDecl::Create(*Context, AS_none, 0, SourceLocation(),
+ SourceLocation());
+ break;
+ case pch::DECL_FRIEND:
+ D = FriendDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_FRIEND_TEMPLATE:
+ D = FriendTemplateDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CLASS_TEMPLATE:
+ D = ClassTemplateDecl::Create(*Context, 0, SourceLocation(),
+ DeclarationName(), 0, 0, 0);
+ break;
+ case pch::DECL_CLASS_TEMPLATE_SPECIALIZATION:
+ D = ClassTemplateSpecializationDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
+ D = ClassTemplatePartialSpecializationDecl::Create(*Context,
+ Decl::EmptyShell());
+ break;
+ case pch::DECL_FUNCTION_TEMPLATE:
+ D = FunctionTemplateDecl::Create(*Context, 0, SourceLocation(),
+ DeclarationName(), 0, 0);
+ break;
+ case pch::DECL_TEMPLATE_TYPE_PARM:
+ D = TemplateTypeParmDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_NON_TYPE_TEMPLATE_PARM:
+ D = NonTypeTemplateParmDecl::Create(*Context, 0, SourceLocation(), 0,0,0,
+ QualType(),0);
+ break;
+ case pch::DECL_TEMPLATE_TEMPLATE_PARM:
+ D = TemplateTemplateParmDecl::Create(*Context, 0, SourceLocation(),0,0,0,0);
+ break;
+ case pch::DECL_STATIC_ASSERT:
+ D = StaticAssertDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+
+ case pch::DECL_OBJC_METHOD:
+ D = ObjCMethodDecl::Create(*Context, SourceLocation(), SourceLocation(),
+ Selector(), QualType(), 0, 0);
+ break;
+ case pch::DECL_OBJC_INTERFACE:
+ D = ObjCInterfaceDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_OBJC_IVAR:
+ D = ObjCIvarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
+ ObjCIvarDecl::None);
+ break;
+ case pch::DECL_OBJC_PROTOCOL:
+ D = ObjCProtocolDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_OBJC_AT_DEFS_FIELD:
+ D = ObjCAtDefsFieldDecl::Create(*Context, 0, SourceLocation(), 0,
+ QualType(), 0);
+ break;
+ case pch::DECL_OBJC_CLASS:
+ D = ObjCClassDecl::Create(*Context, 0, SourceLocation());
+ break;
+ case pch::DECL_OBJC_FORWARD_PROTOCOL:
+ D = ObjCForwardProtocolDecl::Create(*Context, 0, SourceLocation());
+ break;
+ case pch::DECL_OBJC_CATEGORY:
+ D = ObjCCategoryDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), SourceLocation(), 0);
+ break;
+ case pch::DECL_OBJC_CATEGORY_IMPL:
+ D = ObjCCategoryImplDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_OBJC_IMPLEMENTATION:
+ D = ObjCImplementationDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_OBJC_COMPATIBLE_ALIAS:
+ D = ObjCCompatibleAliasDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_OBJC_PROPERTY:
+ D = ObjCPropertyDecl::Create(*Context, 0, SourceLocation(), 0, SourceLocation(),
+ 0);
+ break;
+ case pch::DECL_OBJC_PROPERTY_IMPL:
+ D = ObjCPropertyImplDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), 0,
+ ObjCPropertyImplDecl::Dynamic, 0);
+ break;
+ case pch::DECL_FIELD:
+ D = FieldDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, 0,
+ false);
+ break;
+ case pch::DECL_VAR:
+ D = VarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
+ VarDecl::None, VarDecl::None);
+ break;
+
+ case pch::DECL_IMPLICIT_PARAM:
+ D = ImplicitParamDecl::Create(*Context, 0, SourceLocation(), 0, QualType());
+ break;
+
+ case pch::DECL_PARM_VAR:
+ D = ParmVarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
+ VarDecl::None, VarDecl::None, 0);
+ break;
+ case pch::DECL_FILE_SCOPE_ASM:
+ D = FileScopeAsmDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_BLOCK:
+ D = BlockDecl::Create(*Context, 0, SourceLocation());
+ break;
+ }
+
+ assert(D && "Unknown declaration reading PCH file");
+ LoadedDecl(Index, D);
+ Reader.Visit(D);
+
+ // If this declaration is also a declaration context, get the
+ // offsets for its tables of lexical and visible declarations.
+ if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
+ std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC);
+ if (Offsets.first || Offsets.second) {
+ DC->setHasExternalLexicalStorage(Offsets.first != 0);
+ DC->setHasExternalVisibleStorage(Offsets.second != 0);
+ DeclContextInfo Info;
+ if (ReadDeclContextStorage(DeclsCursor, Offsets, Info))
+ return 0;
+ DeclContextInfos &Infos = DeclContextOffsets[DC];
+ // Reading the TU will happen after reading its update blocks, so we need
+ // to make sure we insert in front. For all other contexts, the vector
+ // is empty here anyway, so there's no loss in efficiency.
+ Infos.insert(Infos.begin(), Info);
+ }
+ }
+ assert(Idx == Record.size());
+
+ // If we have deserialized a declaration that has a definition the
+ // AST consumer might need to know about, queue it.
+ // We don't pass it to the consumer immediately because we may be in recursive
+ // loading, and some declarations may still be initializing.
+ if (isConsumerInterestedIn(D))
+ InterestingDecls.push_back(D);
+
+ return D;
+}
+
+bool PCHReader::ReadDeclContextStorage(llvm::BitstreamCursor &Cursor,
+ const std::pair<uint64_t, uint64_t> &Offsets,
+ DeclContextInfo &Info) {
+ SavedStreamPosition SavedPosition(Cursor);
+ // First the lexical decls.
+ if (Offsets.first != 0) {
+ Cursor.JumpToBit(Offsets.first);
+
+ RecordData Record;
+ const char *Blob;
+ unsigned BlobLen;
+ unsigned Code = Cursor.ReadCode();
+ unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
+ if (RecCode != pch::DECL_CONTEXT_LEXICAL) {
+ Error("Expected lexical block");
+ return true;
+ }
+
+ Info.LexicalDecls = reinterpret_cast<const pch::DeclID*>(Blob);
+ Info.NumLexicalDecls = BlobLen / sizeof(pch::DeclID);
+ } else {
+ Info.LexicalDecls = 0;
+ Info.NumLexicalDecls = 0;
+ }
+
+ // Now the visible decls.
+ Info.Stream = &Cursor;
+ Info.OffsetToVisibleDecls = Offsets.second;
+
+ return false;
+}
diff --git a/clang/lib/Serialization/PCHReaderStmt.cpp b/clang/lib/Serialization/PCHReaderStmt.cpp
new file mode 100644
index 00000000000..727dce39d7c
--- /dev/null
+++ b/clang/lib/Serialization/PCHReaderStmt.cpp
@@ -0,0 +1,1775 @@
+//===--- PCHReaderStmt.cpp - Stmt/Expr Deserialization ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Statement/expression deserialization. This implements the
+// PCHReader::ReadStmt method.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Serialization/PCHReader.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/StmtVisitor.h"
+using namespace clang;
+
+namespace clang {
+
+ class PCHStmtReader : public StmtVisitor<PCHStmtReader> {
+ PCHReader &Reader;
+ llvm::BitstreamCursor &DeclsCursor;
+ const PCHReader::RecordData &Record;
+ unsigned &Idx;
+
+ public:
+ PCHStmtReader(PCHReader &Reader, llvm::BitstreamCursor &Cursor,
+ const PCHReader::RecordData &Record, unsigned &Idx)
+ : Reader(Reader), DeclsCursor(Cursor), Record(Record), Idx(Idx) { }
+
+ /// \brief The number of record fields required for the Stmt class
+ /// itself.
+ static const unsigned NumStmtFields = 0;
+
+ /// \brief The number of record fields required for the Expr class
+ /// itself.
+ static const unsigned NumExprFields = NumStmtFields + 3;
+
+ /// \brief Read and initialize a ExplicitTemplateArgumentList structure.
+ void ReadExplicitTemplateArgumentList(ExplicitTemplateArgumentList &ArgList,
+ unsigned NumTemplateArgs);
+
+ void VisitStmt(Stmt *S);
+ void VisitNullStmt(NullStmt *S);
+ void VisitCompoundStmt(CompoundStmt *S);
+ void VisitSwitchCase(SwitchCase *S);
+ void VisitCaseStmt(CaseStmt *S);
+ void VisitDefaultStmt(DefaultStmt *S);
+ void VisitLabelStmt(LabelStmt *S);
+ void VisitIfStmt(IfStmt *S);
+ void VisitSwitchStmt(SwitchStmt *S);
+ void VisitWhileStmt(WhileStmt *S);
+ void VisitDoStmt(DoStmt *S);
+ void VisitForStmt(ForStmt *S);
+ void VisitGotoStmt(GotoStmt *S);
+ void VisitIndirectGotoStmt(IndirectGotoStmt *S);
+ void VisitContinueStmt(ContinueStmt *S);
+ void VisitBreakStmt(BreakStmt *S);
+ void VisitReturnStmt(ReturnStmt *S);
+ void VisitDeclStmt(DeclStmt *S);
+ void VisitAsmStmt(AsmStmt *S);
+ void VisitExpr(Expr *E);
+ void VisitPredefinedExpr(PredefinedExpr *E);
+ void VisitDeclRefExpr(DeclRefExpr *E);
+ void VisitIntegerLiteral(IntegerLiteral *E);
+ void VisitFloatingLiteral(FloatingLiteral *E);
+ void VisitImaginaryLiteral(ImaginaryLiteral *E);
+ void VisitStringLiteral(StringLiteral *E);
+ void VisitCharacterLiteral(CharacterLiteral *E);
+ void VisitParenExpr(ParenExpr *E);
+ void VisitParenListExpr(ParenListExpr *E);
+ void VisitUnaryOperator(UnaryOperator *E);
+ void VisitOffsetOfExpr(OffsetOfExpr *E);
+ void VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E);
+ void VisitArraySubscriptExpr(ArraySubscriptExpr *E);
+ void VisitCallExpr(CallExpr *E);
+ void VisitMemberExpr(MemberExpr *E);
+ void VisitCastExpr(CastExpr *E);
+ void VisitBinaryOperator(BinaryOperator *E);
+ void VisitCompoundAssignOperator(CompoundAssignOperator *E);
+ void VisitConditionalOperator(ConditionalOperator *E);
+ void VisitImplicitCastExpr(ImplicitCastExpr *E);
+ void VisitExplicitCastExpr(ExplicitCastExpr *E);
+ void VisitCStyleCastExpr(CStyleCastExpr *E);
+ void VisitCompoundLiteralExpr(CompoundLiteralExpr *E);
+ void VisitExtVectorElementExpr(ExtVectorElementExpr *E);
+ void VisitInitListExpr(InitListExpr *E);
+ void VisitDesignatedInitExpr(DesignatedInitExpr *E);
+ void VisitImplicitValueInitExpr(ImplicitValueInitExpr *E);
+ void VisitVAArgExpr(VAArgExpr *E);
+ void VisitAddrLabelExpr(AddrLabelExpr *E);
+ void VisitStmtExpr(StmtExpr *E);
+ void VisitTypesCompatibleExpr(TypesCompatibleExpr *E);
+ void VisitChooseExpr(ChooseExpr *E);
+ void VisitGNUNullExpr(GNUNullExpr *E);
+ void VisitShuffleVectorExpr(ShuffleVectorExpr *E);
+ void VisitBlockExpr(BlockExpr *E);
+ void VisitBlockDeclRefExpr(BlockDeclRefExpr *E);
+ void VisitObjCStringLiteral(ObjCStringLiteral *E);
+ void VisitObjCEncodeExpr(ObjCEncodeExpr *E);
+ void VisitObjCSelectorExpr(ObjCSelectorExpr *E);
+ void VisitObjCProtocolExpr(ObjCProtocolExpr *E);
+ void VisitObjCIvarRefExpr(ObjCIvarRefExpr *E);
+ void VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E);
+ void VisitObjCImplicitSetterGetterRefExpr(
+ ObjCImplicitSetterGetterRefExpr *E);
+ void VisitObjCMessageExpr(ObjCMessageExpr *E);
+ void VisitObjCSuperExpr(ObjCSuperExpr *E);
+ void VisitObjCIsaExpr(ObjCIsaExpr *E);
+
+ void VisitObjCForCollectionStmt(ObjCForCollectionStmt *);
+ void VisitObjCAtCatchStmt(ObjCAtCatchStmt *);
+ void VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *);
+ void VisitObjCAtTryStmt(ObjCAtTryStmt *);
+ void VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *);
+ void VisitObjCAtThrowStmt(ObjCAtThrowStmt *);
+
+ // C++ Statements
+ void VisitCXXCatchStmt(CXXCatchStmt *S);
+ void VisitCXXTryStmt(CXXTryStmt *S);
+
+ void VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E);
+ void VisitCXXConstructExpr(CXXConstructExpr *E);
+ void VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E);
+ void VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
+ void VisitCXXStaticCastExpr(CXXStaticCastExpr *E);
+ void VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E);
+ void VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E);
+ void VisitCXXConstCastExpr(CXXConstCastExpr *E);
+ void VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E);
+ void VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E);
+ void VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E);
+ void VisitCXXTypeidExpr(CXXTypeidExpr *E);
+ void VisitCXXThisExpr(CXXThisExpr *E);
+ void VisitCXXThrowExpr(CXXThrowExpr *E);
+ void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E);
+ void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E);
+ void VisitCXXBindReferenceExpr(CXXBindReferenceExpr *E);
+
+ void VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E);
+ void VisitCXXNewExpr(CXXNewExpr *E);
+ void VisitCXXDeleteExpr(CXXDeleteExpr *E);
+ void VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E);
+
+ void VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E);
+
+ void VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E);
+ void VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E);
+ void VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E);
+
+ void VisitOverloadExpr(OverloadExpr *E);
+ void VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E);
+ void VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E);
+
+ void VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E);
+ };
+}
+
+void PCHStmtReader::
+ReadExplicitTemplateArgumentList(ExplicitTemplateArgumentList &ArgList,
+ unsigned NumTemplateArgs) {
+ TemplateArgumentListInfo ArgInfo;
+ ArgInfo.setLAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+ ArgInfo.setRAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+ for (unsigned i = 0; i != NumTemplateArgs; ++i)
+ ArgInfo.addArgument(
+ Reader.ReadTemplateArgumentLoc(DeclsCursor, Record, Idx));
+ ArgList.initializeFrom(ArgInfo);
+}
+
+void PCHStmtReader::VisitStmt(Stmt *S) {
+ assert(Idx == NumStmtFields && "Incorrect statement field count");
+}
+
+void PCHStmtReader::VisitNullStmt(NullStmt *S) {
+ VisitStmt(S);
+ S->setSemiLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCompoundStmt(CompoundStmt *S) {
+ VisitStmt(S);
+ llvm::SmallVector<Stmt *, 16> Stmts;
+ unsigned NumStmts = Record[Idx++];
+ while (NumStmts--)
+ Stmts.push_back(Reader.ReadSubStmt());
+ S->setStmts(*Reader.getContext(), Stmts.data(), Stmts.size());
+ S->setLBracLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setRBracLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitSwitchCase(SwitchCase *S) {
+ VisitStmt(S);
+ Reader.RecordSwitchCaseID(S, Record[Idx++]);
+}
+
+void PCHStmtReader::VisitCaseStmt(CaseStmt *S) {
+ VisitSwitchCase(S);
+ S->setLHS(Reader.ReadSubExpr());
+ S->setRHS(Reader.ReadSubExpr());
+ S->setSubStmt(Reader.ReadSubStmt());
+ S->setCaseLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setEllipsisLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setColonLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitDefaultStmt(DefaultStmt *S) {
+ VisitSwitchCase(S);
+ S->setSubStmt(Reader.ReadSubStmt());
+ S->setDefaultLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setColonLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitLabelStmt(LabelStmt *S) {
+ VisitStmt(S);
+ S->setID(Reader.GetIdentifierInfo(Record, Idx));
+ S->setSubStmt(Reader.ReadSubStmt());
+ S->setIdentLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ Reader.RecordLabelStmt(S, Record[Idx++]);
+}
+
+void PCHStmtReader::VisitIfStmt(IfStmt *S) {
+ VisitStmt(S);
+ S->setConditionVariable(*Reader.getContext(),
+ cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
+ S->setCond(Reader.ReadSubExpr());
+ S->setThen(Reader.ReadSubStmt());
+ S->setElse(Reader.ReadSubStmt());
+ S->setIfLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setElseLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitSwitchStmt(SwitchStmt *S) {
+ VisitStmt(S);
+ S->setConditionVariable(*Reader.getContext(),
+ cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
+ S->setCond(Reader.ReadSubExpr());
+ S->setBody(Reader.ReadSubStmt());
+ S->setSwitchLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ SwitchCase *PrevSC = 0;
+ for (unsigned N = Record.size(); Idx != N; ++Idx) {
+ SwitchCase *SC = Reader.getSwitchCaseWithID(Record[Idx]);
+ if (PrevSC)
+ PrevSC->setNextSwitchCase(SC);
+ else
+ S->setSwitchCaseList(SC);
+
+ // Retain this SwitchCase, since SwitchStmt::addSwitchCase() would
+ // normally retain it (but we aren't calling addSwitchCase).
+ SC->Retain();
+ PrevSC = SC;
+ }
+}
+
+void PCHStmtReader::VisitWhileStmt(WhileStmt *S) {
+ VisitStmt(S);
+ S->setConditionVariable(*Reader.getContext(),
+ cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
+ S->setCond(Reader.ReadSubExpr());
+ S->setBody(Reader.ReadSubStmt());
+ S->setWhileLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitDoStmt(DoStmt *S) {
+ VisitStmt(S);
+ S->setCond(Reader.ReadSubExpr());
+ S->setBody(Reader.ReadSubStmt());
+ S->setDoLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setWhileLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitForStmt(ForStmt *S) {
+ VisitStmt(S);
+ S->setInit(Reader.ReadSubStmt());
+ S->setCond(Reader.ReadSubExpr());
+ S->setConditionVariable(*Reader.getContext(),
+ cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
+ S->setInc(Reader.ReadSubExpr());
+ S->setBody(Reader.ReadSubStmt());
+ S->setForLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitGotoStmt(GotoStmt *S) {
+ VisitStmt(S);
+ Reader.SetLabelOf(S, Record[Idx++]);
+ S->setGotoLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setLabelLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
+ VisitStmt(S);
+ S->setGotoLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setStarLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setTarget(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitContinueStmt(ContinueStmt *S) {
+ VisitStmt(S);
+ S->setContinueLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitBreakStmt(BreakStmt *S) {
+ VisitStmt(S);
+ S->setBreakLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitReturnStmt(ReturnStmt *S) {
+ VisitStmt(S);
+ S->setRetValue(Reader.ReadSubExpr());
+ S->setReturnLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setNRVOCandidate(cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHStmtReader::VisitDeclStmt(DeclStmt *S) {
+ VisitStmt(S);
+ S->setStartLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+
+ if (Idx + 1 == Record.size()) {
+ // Single declaration
+ S->setDeclGroup(DeclGroupRef(Reader.GetDecl(Record[Idx++])));
+ } else {
+ llvm::SmallVector<Decl *, 16> Decls;
+ Decls.reserve(Record.size() - Idx);
+ for (unsigned N = Record.size(); Idx != N; ++Idx)
+ Decls.push_back(Reader.GetDecl(Record[Idx]));
+ S->setDeclGroup(DeclGroupRef(DeclGroup::Create(*Reader.getContext(),
+ Decls.data(),
+ Decls.size())));
+ }
+}
+
+void PCHStmtReader::VisitAsmStmt(AsmStmt *S) {
+ VisitStmt(S);
+ unsigned NumOutputs = Record[Idx++];
+ unsigned NumInputs = Record[Idx++];
+ unsigned NumClobbers = Record[Idx++];
+ S->setAsmLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setVolatile(Record[Idx++]);
+ S->setSimple(Record[Idx++]);
+ S->setMSAsm(Record[Idx++]);
+
+ S->setAsmString(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
+
+ // Outputs and inputs
+ llvm::SmallVector<IdentifierInfo *, 16> Names;
+ llvm::SmallVector<StringLiteral*, 16> Constraints;
+ llvm::SmallVector<Stmt*, 16> Exprs;
+ for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
+ Names.push_back(Reader.GetIdentifierInfo(Record, Idx));
+ Constraints.push_back(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
+ Exprs.push_back(Reader.ReadSubStmt());
+ }
+
+ // Constraints
+ llvm::SmallVector<StringLiteral*, 16> Clobbers;
+ for (unsigned I = 0; I != NumClobbers; ++I)
+ Clobbers.push_back(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
+
+ S->setOutputsAndInputsAndClobbers(*Reader.getContext(),
+ Names.data(), Constraints.data(),
+ Exprs.data(), NumOutputs, NumInputs,
+ Clobbers.data(), NumClobbers);
+}
+
+void PCHStmtReader::VisitExpr(Expr *E) {
+ VisitStmt(E);
+ E->setType(Reader.GetType(Record[Idx++]));
+ E->setTypeDependent(Record[Idx++]);
+ E->setValueDependent(Record[Idx++]);
+ assert(Idx == NumExprFields && "Incorrect expression field count");
+}
+
+void PCHStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
+ VisitExpr(E);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setIdentType((PredefinedExpr::IdentType)Record[Idx++]);
+}
+
+void PCHStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
+ VisitExpr(E);
+
+ bool HasQualifier = Record[Idx++];
+ unsigned NumTemplateArgs = Record[Idx++];
+
+ E->DecoratedD.setInt((HasQualifier? DeclRefExpr::HasQualifierFlag : 0) |
+ (NumTemplateArgs ? DeclRefExpr::HasExplicitTemplateArgumentListFlag : 0));
+
+ if (HasQualifier) {
+ E->getNameQualifier()->NNS = Reader.ReadNestedNameSpecifier(Record, Idx);
+ E->getNameQualifier()->Range = Reader.ReadSourceRange(Record, Idx);
+ }
+
+ if (NumTemplateArgs)
+ ReadExplicitTemplateArgumentList(*E->getExplicitTemplateArgumentList(),
+ NumTemplateArgs);
+
+ E->setDecl(cast<ValueDecl>(Reader.GetDecl(Record[Idx++])));
+ // FIXME: read DeclarationNameLoc.
+ E->setLocation(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void PCHStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
+ VisitExpr(E);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setValue(Reader.ReadAPInt(Record, Idx));
+}
+
+void PCHStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
+ VisitExpr(E);
+ E->setValue(Reader.ReadAPFloat(Record, Idx));
+ E->setExact(Record[Idx++]);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
+ VisitExpr(E);
+ E->setSubExpr(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitStringLiteral(StringLiteral *E) {
+ VisitExpr(E);
+ unsigned Len = Record[Idx++];
+ assert(Record[Idx] == E->getNumConcatenated() &&
+ "Wrong number of concatenated tokens!");
+ ++Idx;
+ E->setWide(Record[Idx++]);
+
+ // Read string data
+ llvm::SmallString<16> Str(&Record[Idx], &Record[Idx] + Len);
+ E->setString(*Reader.getContext(), Str.str());
+ Idx += Len;
+
+ // Read source locations
+ for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
+ E->setStrTokenLoc(I, SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
+ VisitExpr(E);
+ E->setValue(Record[Idx++]);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setWide(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitParenExpr(ParenExpr *E) {
+ VisitExpr(E);
+ E->setLParen(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParen(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setSubExpr(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitParenListExpr(ParenListExpr *E) {
+ VisitExpr(E);
+ unsigned NumExprs = Record[Idx++];
+ E->Exprs = new (*Reader.getContext()) Stmt*[NumExprs];
+ for (unsigned i = 0; i != NumExprs; ++i)
+ E->Exprs[i] = Reader.ReadSubStmt();
+ E->NumExprs = NumExprs;
+ E->LParenLoc = Reader.ReadSourceLocation(Record, Idx);
+ E->RParenLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHStmtReader::VisitUnaryOperator(UnaryOperator *E) {
+ VisitExpr(E);
+ E->setSubExpr(Reader.ReadSubExpr());
+ E->setOpcode((UnaryOperator::Opcode)Record[Idx++]);
+ E->setOperatorLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
+ typedef OffsetOfExpr::OffsetOfNode Node;
+ VisitExpr(E);
+ assert(E->getNumComponents() == Record[Idx]);
+ ++Idx;
+ assert(E->getNumExpressions() == Record[Idx]);
+ ++Idx;
+ E->setOperatorLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setTypeSourceInfo(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
+ Node::Kind Kind = static_cast<Node::Kind>(Record[Idx++]);
+ SourceLocation Start = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation End = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ switch (Kind) {
+ case Node::Array:
+ E->setComponent(I, Node(Start, Record[Idx++], End));
+ break;
+
+ case Node::Field:
+ E->setComponent(I,
+ Node(Start,
+ dyn_cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++])),
+ End));
+ break;
+
+ case Node::Identifier:
+ E->setComponent(I, Node(Start, Reader.GetIdentifier(Record[Idx++]), End));
+ break;
+
+ case Node::Base: {
+ CXXBaseSpecifier *Base = new (*Reader.getContext()) CXXBaseSpecifier();
+ *Base = Reader.ReadCXXBaseSpecifier(DeclsCursor, Record, Idx);
+ E->setComponent(I, Node(Base));
+ break;
+ }
+ }
+ }
+
+ for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
+ E->setIndexExpr(I, Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) {
+ VisitExpr(E);
+ E->setSizeof(Record[Idx++]);
+ if (Record[Idx] == 0) {
+ E->setArgument(Reader.ReadSubExpr());
+ ++Idx;
+ } else {
+ E->setArgument(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ }
+ E->setOperatorLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
+ VisitExpr(E);
+ E->setLHS(Reader.ReadSubExpr());
+ E->setRHS(Reader.ReadSubExpr());
+ E->setRBracketLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCallExpr(CallExpr *E) {
+ VisitExpr(E);
+ E->setNumArgs(*Reader.getContext(), Record[Idx++]);
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setCallee(Reader.ReadSubExpr());
+ for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
+ E->setArg(I, Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitMemberExpr(MemberExpr *E) {
+ // Don't call VisitExpr, this is fully initialized at creation.
+ assert(E->getStmtClass() == Stmt::MemberExprClass &&
+ "It's a subclass, we must advance Idx!");
+}
+
+void PCHStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
+ VisitExpr(E);
+ E->setBase(Reader.ReadSubExpr());
+ E->setIsaMemberLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setArrow(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitCastExpr(CastExpr *E) {
+ VisitExpr(E);
+ unsigned NumBaseSpecs = Record[Idx++];
+ assert(NumBaseSpecs == E->path_size());
+ E->setSubExpr(Reader.ReadSubExpr());
+ E->setCastKind((CastExpr::CastKind)Record[Idx++]);
+ CastExpr::path_iterator BaseI = E->path_begin();
+ while (NumBaseSpecs--) {
+ CXXBaseSpecifier *BaseSpec = new (*Reader.getContext()) CXXBaseSpecifier;
+ *BaseSpec = Reader.ReadCXXBaseSpecifier(DeclsCursor, Record, Idx);
+ *BaseI++ = BaseSpec;
+ }
+}
+
+void PCHStmtReader::VisitBinaryOperator(BinaryOperator *E) {
+ VisitExpr(E);
+ E->setLHS(Reader.ReadSubExpr());
+ E->setRHS(Reader.ReadSubExpr());
+ E->setOpcode((BinaryOperator::Opcode)Record[Idx++]);
+ E->setOperatorLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
+ VisitBinaryOperator(E);
+ E->setComputationLHSType(Reader.GetType(Record[Idx++]));
+ E->setComputationResultType(Reader.GetType(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
+ VisitExpr(E);
+ E->setCond(Reader.ReadSubExpr());
+ E->setLHS(Reader.ReadSubExpr());
+ E->setRHS(Reader.ReadSubExpr());
+ E->setQuestionLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setColonLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
+ VisitCastExpr(E);
+ E->setCategory(static_cast<ImplicitCastExpr::ResultCategory>(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
+ VisitCastExpr(E);
+ E->setTypeInfoAsWritten(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+}
+
+void PCHStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
+ VisitExplicitCastExpr(E);
+ E->setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
+ VisitExpr(E);
+ E->setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setTypeSourceInfo(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ E->setInitializer(Reader.ReadSubExpr());
+ E->setFileScope(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
+ VisitExpr(E);
+ E->setBase(Reader.ReadSubExpr());
+ E->setAccessor(Reader.GetIdentifierInfo(Record, Idx));
+ E->setAccessorLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitInitListExpr(InitListExpr *E) {
+ VisitExpr(E);
+ unsigned NumInits = Record[Idx++];
+ E->reserveInits(*Reader.getContext(), NumInits);
+ for (unsigned I = 0; I != NumInits; ++I)
+ E->updateInit(*Reader.getContext(), I, Reader.ReadSubExpr());
+ E->setSyntacticForm(cast_or_null<InitListExpr>(Reader.ReadSubStmt()));
+ E->setLBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setInitializedFieldInUnion(
+ cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++])));
+ E->sawArrayRangeDesignator(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
+ typedef DesignatedInitExpr::Designator Designator;
+
+ VisitExpr(E);
+ unsigned NumSubExprs = Record[Idx++];
+ assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
+ for (unsigned I = 0; I != NumSubExprs; ++I)
+ E->setSubExpr(I, Reader.ReadSubExpr());
+ E->setEqualOrColonLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setGNUSyntax(Record[Idx++]);
+
+ llvm::SmallVector<Designator, 4> Designators;
+ while (Idx < Record.size()) {
+ switch ((pch::DesignatorTypes)Record[Idx++]) {
+ case pch::DESIG_FIELD_DECL: {
+ FieldDecl *Field = cast<FieldDecl>(Reader.GetDecl(Record[Idx++]));
+ SourceLocation DotLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation FieldLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ Designators.push_back(Designator(Field->getIdentifier(), DotLoc,
+ FieldLoc));
+ Designators.back().setField(Field);
+ break;
+ }
+
+ case pch::DESIG_FIELD_NAME: {
+ const IdentifierInfo *Name = Reader.GetIdentifierInfo(Record, Idx);
+ SourceLocation DotLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation FieldLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ Designators.push_back(Designator(Name, DotLoc, FieldLoc));
+ break;
+ }
+
+ case pch::DESIG_ARRAY: {
+ unsigned Index = Record[Idx++];
+ SourceLocation LBracketLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation RBracketLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ Designators.push_back(Designator(Index, LBracketLoc, RBracketLoc));
+ break;
+ }
+
+ case pch::DESIG_ARRAY_RANGE: {
+ unsigned Index = Record[Idx++];
+ SourceLocation LBracketLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation EllipsisLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation RBracketLoc
+ = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ Designators.push_back(Designator(Index, LBracketLoc, EllipsisLoc,
+ RBracketLoc));
+ break;
+ }
+ }
+ }
+ E->setDesignators(*Reader.getContext(),
+ Designators.data(), Designators.size());
+}
+
+void PCHStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
+ VisitExpr(E);
+}
+
+void PCHStmtReader::VisitVAArgExpr(VAArgExpr *E) {
+ VisitExpr(E);
+ E->setSubExpr(Reader.ReadSubExpr());
+ E->setWrittenTypeInfo(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ E->setBuiltinLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
+ VisitExpr(E);
+ E->setAmpAmpLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setLabelLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ Reader.SetLabelOf(E, Record[Idx++]);
+}
+
+void PCHStmtReader::VisitStmtExpr(StmtExpr *E) {
+ VisitExpr(E);
+ E->setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setSubStmt(cast_or_null<CompoundStmt>(Reader.ReadSubStmt()));
+}
+
+void PCHStmtReader::VisitTypesCompatibleExpr(TypesCompatibleExpr *E) {
+ VisitExpr(E);
+ E->setArgTInfo1(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ E->setArgTInfo2(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ E->setBuiltinLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitChooseExpr(ChooseExpr *E) {
+ VisitExpr(E);
+ E->setCond(Reader.ReadSubExpr());
+ E->setLHS(Reader.ReadSubExpr());
+ E->setRHS(Reader.ReadSubExpr());
+ E->setBuiltinLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
+ VisitExpr(E);
+ E->setTokenLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
+ VisitExpr(E);
+ llvm::SmallVector<Expr *, 16> Exprs;
+ unsigned NumExprs = Record[Idx++];
+ while (NumExprs--)
+ Exprs.push_back(Reader.ReadSubExpr());
+ E->setExprs(*Reader.getContext(), Exprs.data(), Exprs.size());
+ E->setBuiltinLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitBlockExpr(BlockExpr *E) {
+ VisitExpr(E);
+ E->setBlockDecl(cast_or_null<BlockDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setHasBlockDeclRefExprs(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitBlockDeclRefExpr(BlockDeclRefExpr *E) {
+ VisitExpr(E);
+ E->setDecl(cast<ValueDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setByRef(Record[Idx++]);
+ E->setConstQualAdded(Record[Idx++]);
+ E->setCopyConstructorExpr(Reader.ReadSubExpr());
+}
+
+//===----------------------------------------------------------------------===//
+// Objective-C Expressions and Statements
+
+void PCHStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
+ VisitExpr(E);
+ E->setString(cast<StringLiteral>(Reader.ReadSubStmt()));
+ E->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
+ VisitExpr(E);
+ E->setEncodedTypeSourceInfo(Reader.GetTypeSourceInfo(DeclsCursor,Record,Idx));
+ E->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
+ VisitExpr(E);
+ E->setSelector(Reader.GetSelector(Record, Idx));
+ E->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
+ VisitExpr(E);
+ E->setProtocol(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
+ VisitExpr(E);
+ E->setDecl(cast<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setBase(Reader.ReadSubExpr());
+ E->setIsArrow(Record[Idx++]);
+ E->setIsFreeIvar(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
+ VisitExpr(E);
+ E->setProperty(cast<ObjCPropertyDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setBase(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitObjCImplicitSetterGetterRefExpr(
+ ObjCImplicitSetterGetterRefExpr *E) {
+ VisitExpr(E);
+ E->setGetterMethod(
+ cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setSetterMethod(
+ cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setInterfaceDecl(
+ cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setBase(Reader.ReadSubExpr());
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
+ VisitExpr(E);
+ assert(Record[Idx] == E->getNumArgs());
+ ++Idx;
+ ObjCMessageExpr::ReceiverKind Kind
+ = static_cast<ObjCMessageExpr::ReceiverKind>(Record[Idx++]);
+ switch (Kind) {
+ case ObjCMessageExpr::Instance:
+ E->setInstanceReceiver(Reader.ReadSubExpr());
+ break;
+
+ case ObjCMessageExpr::Class:
+ E->setClassReceiver(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ break;
+
+ case ObjCMessageExpr::SuperClass:
+ case ObjCMessageExpr::SuperInstance: {
+ QualType T = Reader.GetType(Record[Idx++]);
+ SourceLocation SuperLoc = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
+ break;
+ }
+ }
+
+ assert(Kind == E->getReceiverKind());
+
+ if (Record[Idx++])
+ E->setMethodDecl(cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ else
+ E->setSelector(Reader.GetSelector(Record, Idx));
+
+ E->setLeftLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRightLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+
+ for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
+ E->setArg(I, Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitObjCSuperExpr(ObjCSuperExpr *E) {
+ VisitExpr(E);
+ E->setLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
+ VisitStmt(S);
+ S->setElement(Reader.ReadSubStmt());
+ S->setCollection(Reader.ReadSubExpr());
+ S->setBody(Reader.ReadSubStmt());
+ S->setForLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
+ VisitStmt(S);
+ S->setCatchBody(Reader.ReadSubStmt());
+ S->setCatchParamDecl(cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
+ S->setAtCatchLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ S->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
+ VisitStmt(S);
+ S->setFinallyBody(Reader.ReadSubStmt());
+ S->setAtFinallyLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
+ VisitStmt(S);
+ assert(Record[Idx] == S->getNumCatchStmts());
+ ++Idx;
+ bool HasFinally = Record[Idx++];
+ S->setTryBody(Reader.ReadSubStmt());
+ for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
+ S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Reader.ReadSubStmt()));
+
+ if (HasFinally)
+ S->setFinallyStmt(Reader.ReadSubStmt());
+ S->setAtTryLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
+ VisitStmt(S);
+ S->setSynchExpr(Reader.ReadSubStmt());
+ S->setSynchBody(Reader.ReadSubStmt());
+ S->setAtSynchronizedLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
+ VisitStmt(S);
+ S->setThrowExpr(Reader.ReadSubStmt());
+ S->setThrowLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+//===----------------------------------------------------------------------===//
+// C++ Expressions and Statements
+//===----------------------------------------------------------------------===//
+
+void PCHStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
+ VisitStmt(S);
+ S->CatchLoc = Reader.ReadSourceLocation(Record, Idx);
+ S->ExceptionDecl = cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++]));
+ S->HandlerBlock = Reader.ReadSubStmt();
+}
+
+void PCHStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
+ VisitStmt(S);
+ assert(Record[Idx] == S->getNumHandlers() && "NumStmtFields is wrong ?");
+ ++Idx;
+ S->TryLoc = Reader.ReadSourceLocation(Record, Idx);
+ S->getStmts()[0] = Reader.ReadSubStmt();
+ for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
+ S->getStmts()[i + 1] = Reader.ReadSubStmt();
+}
+
+void PCHStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
+ VisitCallExpr(E);
+ E->setOperator((OverloadedOperatorKind)Record[Idx++]);
+}
+
+void PCHStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
+ VisitExpr(E);
+ E->NumArgs = Record[Idx++];
+ if (E->NumArgs)
+ E->Args = new (*Reader.getContext()) Stmt*[E->NumArgs];
+ for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
+ E->setArg(I, Reader.ReadSubExpr());
+ E->setConstructor(cast<CXXConstructorDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setElidable(Record[Idx++]);
+ E->setRequiresZeroInitialization(Record[Idx++]);
+ E->setConstructionKind((CXXConstructExpr::ConstructionKind)Record[Idx++]);
+}
+
+void PCHStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
+ VisitCXXConstructExpr(E);
+ E->TyBeginLoc = Reader.ReadSourceLocation(Record, Idx);
+ E->RParenLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
+ VisitExplicitCastExpr(E);
+ E->setOperatorLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
+ return VisitCXXNamedCastExpr(E);
+}
+
+void PCHStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
+ return VisitCXXNamedCastExpr(E);
+}
+
+void PCHStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
+ return VisitCXXNamedCastExpr(E);
+}
+
+void PCHStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
+ return VisitCXXNamedCastExpr(E);
+}
+
+void PCHStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
+ VisitExplicitCastExpr(E);
+ E->setTypeBeginLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
+ VisitExpr(E);
+ E->setValue(Record[Idx++]);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
+ VisitExpr(E);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
+ VisitExpr(E);
+ E->setSourceRange(Reader.ReadSourceRange(Record, Idx));
+ if (E->isTypeOperand()) { // typeid(int)
+ E->setTypeOperandSourceInfo(
+ Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ return;
+ }
+
+ // typeid(42+2)
+ E->setExprOperand(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
+ VisitExpr(E);
+ E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setImplicit(Record[Idx++]);
+}
+
+void PCHStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
+ VisitExpr(E);
+ E->setThrowLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setSubExpr(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
+ VisitExpr(E);
+
+ assert(Record[Idx] == E->Param.getInt() && "We messed up at creation ?");
+ ++Idx; // HasOtherExprStored and SubExpr was handled during creation.
+ E->Param.setPointer(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ E->Loc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
+ VisitExpr(E);
+ E->setTemporary(Reader.ReadCXXTemporary(Record, Idx));
+ E->setSubExpr(Reader.ReadSubExpr());
+}
+
+void PCHStmtReader::VisitCXXBindReferenceExpr(CXXBindReferenceExpr *E) {
+ VisitExpr(E);
+ E->SubExpr = Reader.ReadSubExpr();
+ E->ExtendsLifetime = Record[Idx++];
+ E->RequiresTemporaryCopy = Record[Idx++];
+}
+
+void PCHStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
+ VisitExpr(E);
+ E->setTypeBeginLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
+ VisitExpr(E);
+ E->setGlobalNew(Record[Idx++]);
+ E->setHasInitializer(Record[Idx++]);
+ bool isArray = Record[Idx++];
+ unsigned NumPlacementArgs = Record[Idx++];
+ unsigned NumCtorArgs = Record[Idx++];
+ E->setOperatorNew(cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setOperatorDelete(
+ cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setConstructor(
+ cast_or_null<CXXConstructorDecl>(Reader.GetDecl(Record[Idx++])));
+ SourceRange TypeIdParens;
+ TypeIdParens.setBegin(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TypeIdParens.setEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->TypeIdParens = TypeIdParens;
+ E->setStartLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ E->setEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+
+ E->AllocateArgsArray(*Reader.getContext(), isArray, NumPlacementArgs,
+ NumCtorArgs);
+
+ // Install all the subexpressions.
+ for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),e = E->raw_arg_end();
+ I != e; ++I)
+ *I = Reader.ReadSubStmt();
+}
+
+void PCHStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
+ VisitExpr(E);
+ E->setGlobalDelete(Record[Idx++]);
+ E->setArrayForm(Record[Idx++]);
+ E->setOperatorDelete(
+ cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
+ E->setArgument(Reader.ReadSubExpr());
+ E->setStartLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
+ VisitExpr(E);
+
+ E->setBase(Reader.ReadSubExpr());
+ E->setArrow(Record[Idx++]);
+ E->setOperatorLoc(Reader.ReadSourceLocation(Record, Idx));
+ E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ E->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ E->setScopeTypeInfo(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+ E->setColonColonLoc(Reader.ReadSourceLocation(Record, Idx));
+ E->setTildeLoc(Reader.ReadSourceLocation(Record, Idx));
+
+ IdentifierInfo *II = Reader.GetIdentifierInfo(Record, Idx);
+ if (II)
+ E->setDestroyedType(II, Reader.ReadSourceLocation(Record, Idx));
+ else
+ E->setDestroyedType(Reader.GetTypeSourceInfo(DeclsCursor, Record, Idx));
+}
+
+void PCHStmtReader::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E) {
+ VisitExpr(E);
+ unsigned NumTemps = Record[Idx++];
+ if (NumTemps) {
+ E->setNumTemporaries(*Reader.getContext(), NumTemps);
+ for (unsigned i = 0; i != NumTemps; ++i)
+ E->setTemporary(i, Reader.ReadCXXTemporary(Record, Idx));
+ }
+ E->setSubExpr(Reader.ReadSubExpr());
+}
+
+void
+PCHStmtReader::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
+ VisitExpr(E);
+
+ unsigned NumTemplateArgs = Record[Idx++];
+ assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
+ "Read wrong record during creation ?");
+ if (E->hasExplicitTemplateArgs())
+ ReadExplicitTemplateArgumentList(*E->getExplicitTemplateArgumentList(),
+ NumTemplateArgs);
+
+ E->setBase(Reader.ReadSubExpr());
+ E->setBaseType(Reader.GetType(Record[Idx++]));
+ E->setArrow(Record[Idx++]);
+ E->setOperatorLoc(Reader.ReadSourceLocation(Record, Idx));
+ E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ E->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ E->setFirstQualifierFoundInScope(
+ cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+ // FIXME: read whole DeclarationNameInfo.
+ E->setMember(Reader.ReadDeclarationName(Record, Idx));
+ E->setMemberLoc(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void
+PCHStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
+ VisitExpr(E);
+
+ unsigned NumTemplateArgs = Record[Idx++];
+ assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
+ "Read wrong record during creation ?");
+ if (E->hasExplicitTemplateArgs())
+ ReadExplicitTemplateArgumentList(E->getExplicitTemplateArgs(),
+ NumTemplateArgs);
+
+ // FIXME: read whole DeclarationNameInfo.
+ E->setDeclName(Reader.ReadDeclarationName(Record, Idx));
+ E->setLocation(Reader.ReadSourceLocation(Record, Idx));
+ E->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+}
+
+void
+PCHStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
+ VisitExpr(E);
+ assert(Record[Idx] == E->arg_size() && "Read wrong record during creation ?");
+ ++Idx; // NumArgs;
+ for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
+ E->setArg(I, Reader.ReadSubExpr());
+ E->setTypeBeginLoc(Reader.ReadSourceLocation(Record, Idx));
+ E->setTypeAsWritten(Reader.GetType(Record[Idx++]));
+ E->setLParenLoc(Reader.ReadSourceLocation(Record, Idx));
+ E->setRParenLoc(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void PCHStmtReader::VisitOverloadExpr(OverloadExpr *E) {
+ VisitExpr(E);
+
+ unsigned NumTemplateArgs = Record[Idx++];
+ assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
+ "Read wrong record during creation ?");
+ if (E->hasExplicitTemplateArgs())
+ ReadExplicitTemplateArgumentList(E->getExplicitTemplateArgs(),
+ NumTemplateArgs);
+
+ unsigned NumDecls = Record[Idx++];
+ UnresolvedSet<8> Decls;
+ for (unsigned i = 0; i != NumDecls; ++i) {
+ NamedDecl *D = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
+ Decls.addDecl(D, AS);
+ }
+ E->initializeResults(*Reader.getContext(), Decls.begin(), Decls.end());
+
+ // FIXME: read whole DeclarationNameInfo.
+ E->setName(Reader.ReadDeclarationName(Record, Idx));
+ E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ E->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ E->setNameLoc(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void PCHStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
+ VisitOverloadExpr(E);
+ E->setArrow(Record[Idx++]);
+ E->setHasUnresolvedUsing(Record[Idx++]);
+ E->setBase(Reader.ReadSubExpr());
+ E->setBaseType(Reader.GetType(Record[Idx++]));
+ E->setOperatorLoc(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void PCHStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
+ VisitOverloadExpr(E);
+ E->setRequiresADL(Record[Idx++]);
+ E->setOverloaded(Record[Idx++]);
+ E->setNamingClass(cast_or_null<CXXRecordDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHStmtReader::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
+ VisitExpr(E);
+ E->UTT = (UnaryTypeTrait)Record[Idx++];
+ SourceRange Range = Reader.ReadSourceRange(Record, Idx);
+ E->Loc = Range.getBegin();
+ E->RParen = Range.getEnd();
+ E->QueriedType = Reader.GetType(Record[Idx++]);
+}
+
+Stmt *PCHReader::ReadStmt(llvm::BitstreamCursor &Cursor) {
+ switch (ReadingKind) {
+ case Read_Decl:
+ case Read_Type:
+ return ReadStmtFromStream(Cursor);
+ case Read_Stmt:
+ return ReadSubStmt();
+ }
+
+ llvm_unreachable("ReadingKind not set ?");
+ return 0;
+}
+
+Expr *PCHReader::ReadExpr(llvm::BitstreamCursor &Cursor) {
+ return cast_or_null<Expr>(ReadStmt(Cursor));
+}
+
+Expr *PCHReader::ReadSubExpr() {
+ return cast_or_null<Expr>(ReadSubStmt());
+}
+
+// Within the bitstream, expressions are stored in Reverse Polish
+// Notation, with each of the subexpressions preceding the
+// expression they are stored in. Subexpressions are stored from last to first.
+// To evaluate expressions, we continue reading expressions and placing them on
+// the stack, with expressions having operands removing those operands from the
+// stack. Evaluation terminates when we see a STMT_STOP record, and
+// the single remaining expression on the stack is our result.
+Stmt *PCHReader::ReadStmtFromStream(llvm::BitstreamCursor &Cursor) {
+
+ ReadingKindTracker ReadingKind(Read_Stmt, *this);
+
+#ifndef NDEBUG
+ unsigned PrevNumStmts = StmtStack.size();
+#endif
+
+ RecordData Record;
+ unsigned Idx;
+ PCHStmtReader Reader(*this, Cursor, Record, Idx);
+ Stmt::EmptyShell Empty;
+
+ while (true) {
+ unsigned Code = Cursor.ReadCode();
+ if (Code == llvm::bitc::END_BLOCK) {
+ if (Cursor.ReadBlockEnd()) {
+ Error("error at end of block in PCH file");
+ return 0;
+ }
+ break;
+ }
+
+ if (Code == llvm::bitc::ENTER_SUBBLOCK) {
+ // No known subblocks, always skip them.
+ Cursor.ReadSubBlockID();
+ if (Cursor.SkipBlock()) {
+ Error("malformed block record in PCH file");
+ return 0;
+ }
+ continue;
+ }
+
+ if (Code == llvm::bitc::DEFINE_ABBREV) {
+ Cursor.ReadAbbrevRecord();
+ continue;
+ }
+
+ Stmt *S = 0;
+ Idx = 0;
+ Record.clear();
+ bool Finished = false;
+ switch ((pch::StmtCode)Cursor.ReadRecord(Code, Record)) {
+ case pch::STMT_STOP:
+ Finished = true;
+ break;
+
+ case pch::STMT_NULL_PTR:
+ S = 0;
+ break;
+
+ case pch::STMT_NULL:
+ S = new (Context) NullStmt(Empty);
+ break;
+
+ case pch::STMT_COMPOUND:
+ S = new (Context) CompoundStmt(Empty);
+ break;
+
+ case pch::STMT_CASE:
+ S = new (Context) CaseStmt(Empty);
+ break;
+
+ case pch::STMT_DEFAULT:
+ S = new (Context) DefaultStmt(Empty);
+ break;
+
+ case pch::STMT_LABEL:
+ S = new (Context) LabelStmt(Empty);
+ break;
+
+ case pch::STMT_IF:
+ S = new (Context) IfStmt(Empty);
+ break;
+
+ case pch::STMT_SWITCH:
+ S = new (Context) SwitchStmt(Empty);
+ break;
+
+ case pch::STMT_WHILE:
+ S = new (Context) WhileStmt(Empty);
+ break;
+
+ case pch::STMT_DO:
+ S = new (Context) DoStmt(Empty);
+ break;
+
+ case pch::STMT_FOR:
+ S = new (Context) ForStmt(Empty);
+ break;
+
+ case pch::STMT_GOTO:
+ S = new (Context) GotoStmt(Empty);
+ break;
+
+ case pch::STMT_INDIRECT_GOTO:
+ S = new (Context) IndirectGotoStmt(Empty);
+ break;
+
+ case pch::STMT_CONTINUE:
+ S = new (Context) ContinueStmt(Empty);
+ break;
+
+ case pch::STMT_BREAK:
+ S = new (Context) BreakStmt(Empty);
+ break;
+
+ case pch::STMT_RETURN:
+ S = new (Context) ReturnStmt(Empty);
+ break;
+
+ case pch::STMT_DECL:
+ S = new (Context) DeclStmt(Empty);
+ break;
+
+ case pch::STMT_ASM:
+ S = new (Context) AsmStmt(Empty);
+ break;
+
+ case pch::EXPR_PREDEFINED:
+ S = new (Context) PredefinedExpr(Empty);
+ break;
+
+ case pch::EXPR_DECL_REF:
+ S = DeclRefExpr::CreateEmpty(*Context,
+ /*HasQualifier=*/Record[PCHStmtReader::NumExprFields],
+ /*NumTemplateArgs=*/Record[PCHStmtReader::NumExprFields + 1]);
+ break;
+
+ case pch::EXPR_INTEGER_LITERAL:
+ S = new (Context) IntegerLiteral(Empty);
+ break;
+
+ case pch::EXPR_FLOATING_LITERAL:
+ S = new (Context) FloatingLiteral(Empty);
+ break;
+
+ case pch::EXPR_IMAGINARY_LITERAL:
+ S = new (Context) ImaginaryLiteral(Empty);
+ break;
+
+ case pch::EXPR_STRING_LITERAL:
+ S = StringLiteral::CreateEmpty(*Context,
+ Record[PCHStmtReader::NumExprFields + 1]);
+ break;
+
+ case pch::EXPR_CHARACTER_LITERAL:
+ S = new (Context) CharacterLiteral(Empty);
+ break;
+
+ case pch::EXPR_PAREN:
+ S = new (Context) ParenExpr(Empty);
+ break;
+
+ case pch::EXPR_PAREN_LIST:
+ S = new (Context) ParenListExpr(Empty);
+ break;
+
+ case pch::EXPR_UNARY_OPERATOR:
+ S = new (Context) UnaryOperator(Empty);
+ break;
+
+ case pch::EXPR_OFFSETOF:
+ S = OffsetOfExpr::CreateEmpty(*Context,
+ Record[PCHStmtReader::NumExprFields],
+ Record[PCHStmtReader::NumExprFields + 1]);
+ break;
+
+ case pch::EXPR_SIZEOF_ALIGN_OF:
+ S = new (Context) SizeOfAlignOfExpr(Empty);
+ break;
+
+ case pch::EXPR_ARRAY_SUBSCRIPT:
+ S = new (Context) ArraySubscriptExpr(Empty);
+ break;
+
+ case pch::EXPR_CALL:
+ S = new (Context) CallExpr(*Context, Stmt::CallExprClass, Empty);
+ break;
+
+ case pch::EXPR_MEMBER: {
+ // We load everything here and fully initialize it at creation.
+ // That way we can use MemberExpr::Create and don't have to duplicate its
+ // logic with a MemberExpr::CreateEmpty.
+
+ assert(Idx == 0);
+ NestedNameSpecifier *NNS = 0;
+ SourceRange QualifierRange;
+ if (Record[Idx++]) { // HasQualifier.
+ NNS = ReadNestedNameSpecifier(Record, Idx);
+ QualifierRange = ReadSourceRange(Record, Idx);
+ }
+
+ TemplateArgumentListInfo ArgInfo;
+ unsigned NumTemplateArgs = Record[Idx++];
+ if (NumTemplateArgs) {
+ ArgInfo.setLAngleLoc(ReadSourceLocation(Record, Idx));
+ ArgInfo.setRAngleLoc(ReadSourceLocation(Record, Idx));
+ for (unsigned i = 0; i != NumTemplateArgs; ++i)
+ ArgInfo.addArgument(ReadTemplateArgumentLoc(Cursor, Record, Idx));
+ }
+
+ NamedDecl *FoundD = cast_or_null<NamedDecl>(GetDecl(Record[Idx++]));
+ AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
+ DeclAccessPair FoundDecl = DeclAccessPair::make(FoundD, AS);
+
+ QualType T = GetType(Record[Idx++]);
+ Expr *Base = ReadSubExpr();
+ ValueDecl *MemberD = cast<ValueDecl>(GetDecl(Record[Idx++]));
+ // FIXME: read DeclarationNameLoc.
+ SourceLocation MemberLoc = ReadSourceLocation(Record, Idx);
+ DeclarationNameInfo MemberNameInfo(MemberD->getDeclName(), MemberLoc);
+ bool IsArrow = Record[Idx++];
+
+ S = MemberExpr::Create(*Context, Base, IsArrow, NNS, QualifierRange,
+ MemberD, FoundDecl, MemberNameInfo,
+ NumTemplateArgs ? &ArgInfo : 0, T);
+ break;
+ }
+
+ case pch::EXPR_BINARY_OPERATOR:
+ S = new (Context) BinaryOperator(Empty);
+ break;
+
+ case pch::EXPR_COMPOUND_ASSIGN_OPERATOR:
+ S = new (Context) CompoundAssignOperator(Empty);
+ break;
+
+ case pch::EXPR_CONDITIONAL_OPERATOR:
+ S = new (Context) ConditionalOperator(Empty);
+ break;
+
+ case pch::EXPR_IMPLICIT_CAST:
+ S = ImplicitCastExpr::CreateEmpty(*Context,
+ /*PathSize*/ Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CSTYLE_CAST:
+ S = CStyleCastExpr::CreateEmpty(*Context,
+ /*PathSize*/ Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_COMPOUND_LITERAL:
+ S = new (Context) CompoundLiteralExpr(Empty);
+ break;
+
+ case pch::EXPR_EXT_VECTOR_ELEMENT:
+ S = new (Context) ExtVectorElementExpr(Empty);
+ break;
+
+ case pch::EXPR_INIT_LIST:
+ S = new (Context) InitListExpr(*getContext(), Empty);
+ break;
+
+ case pch::EXPR_DESIGNATED_INIT:
+ S = DesignatedInitExpr::CreateEmpty(*Context,
+ Record[PCHStmtReader::NumExprFields] - 1);
+
+ break;
+
+ case pch::EXPR_IMPLICIT_VALUE_INIT:
+ S = new (Context) ImplicitValueInitExpr(Empty);
+ break;
+
+ case pch::EXPR_VA_ARG:
+ S = new (Context) VAArgExpr(Empty);
+ break;
+
+ case pch::EXPR_ADDR_LABEL:
+ S = new (Context) AddrLabelExpr(Empty);
+ break;
+
+ case pch::EXPR_STMT:
+ S = new (Context) StmtExpr(Empty);
+ break;
+
+ case pch::EXPR_TYPES_COMPATIBLE:
+ S = new (Context) TypesCompatibleExpr(Empty);
+ break;
+
+ case pch::EXPR_CHOOSE:
+ S = new (Context) ChooseExpr(Empty);
+ break;
+
+ case pch::EXPR_GNU_NULL:
+ S = new (Context) GNUNullExpr(Empty);
+ break;
+
+ case pch::EXPR_SHUFFLE_VECTOR:
+ S = new (Context) ShuffleVectorExpr(Empty);
+ break;
+
+ case pch::EXPR_BLOCK:
+ S = new (Context) BlockExpr(Empty);
+ break;
+
+ case pch::EXPR_BLOCK_DECL_REF:
+ S = new (Context) BlockDeclRefExpr(Empty);
+ break;
+
+ case pch::EXPR_OBJC_STRING_LITERAL:
+ S = new (Context) ObjCStringLiteral(Empty);
+ break;
+ case pch::EXPR_OBJC_ENCODE:
+ S = new (Context) ObjCEncodeExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_SELECTOR_EXPR:
+ S = new (Context) ObjCSelectorExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_PROTOCOL_EXPR:
+ S = new (Context) ObjCProtocolExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_IVAR_REF_EXPR:
+ S = new (Context) ObjCIvarRefExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_PROPERTY_REF_EXPR:
+ S = new (Context) ObjCPropertyRefExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_KVC_REF_EXPR:
+ S = new (Context) ObjCImplicitSetterGetterRefExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_MESSAGE_EXPR:
+ S = ObjCMessageExpr::CreateEmpty(*Context,
+ Record[PCHStmtReader::NumExprFields]);
+ break;
+ case pch::EXPR_OBJC_SUPER_EXPR:
+ S = new (Context) ObjCSuperExpr(Empty);
+ break;
+ case pch::EXPR_OBJC_ISA:
+ S = new (Context) ObjCIsaExpr(Empty);
+ break;
+ case pch::STMT_OBJC_FOR_COLLECTION:
+ S = new (Context) ObjCForCollectionStmt(Empty);
+ break;
+ case pch::STMT_OBJC_CATCH:
+ S = new (Context) ObjCAtCatchStmt(Empty);
+ break;
+ case pch::STMT_OBJC_FINALLY:
+ S = new (Context) ObjCAtFinallyStmt(Empty);
+ break;
+ case pch::STMT_OBJC_AT_TRY:
+ S = ObjCAtTryStmt::CreateEmpty(*Context,
+ Record[PCHStmtReader::NumStmtFields],
+ Record[PCHStmtReader::NumStmtFields + 1]);
+ break;
+ case pch::STMT_OBJC_AT_SYNCHRONIZED:
+ S = new (Context) ObjCAtSynchronizedStmt(Empty);
+ break;
+ case pch::STMT_OBJC_AT_THROW:
+ S = new (Context) ObjCAtThrowStmt(Empty);
+ break;
+
+ case pch::STMT_CXX_CATCH:
+ S = new (Context) CXXCatchStmt(Empty);
+ break;
+
+ case pch::STMT_CXX_TRY:
+ S = CXXTryStmt::Create(*Context, Empty,
+ /*NumHandlers=*/Record[PCHStmtReader::NumStmtFields]);
+ break;
+
+ case pch::EXPR_CXX_OPERATOR_CALL:
+ S = new (Context) CXXOperatorCallExpr(*Context, Empty);
+ break;
+
+ case pch::EXPR_CXX_MEMBER_CALL:
+ S = new (Context) CXXMemberCallExpr(*Context, Empty);
+ break;
+
+ case pch::EXPR_CXX_CONSTRUCT:
+ S = new (Context) CXXConstructExpr(Empty);
+ break;
+
+ case pch::EXPR_CXX_TEMPORARY_OBJECT:
+ S = new (Context) CXXTemporaryObjectExpr(Empty);
+ break;
+
+ case pch::EXPR_CXX_STATIC_CAST:
+ S = CXXStaticCastExpr::CreateEmpty(*Context,
+ /*PathSize*/ Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_DYNAMIC_CAST:
+ S = CXXDynamicCastExpr::CreateEmpty(*Context,
+ /*PathSize*/ Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_REINTERPRET_CAST:
+ S = CXXReinterpretCastExpr::CreateEmpty(*Context,
+ /*PathSize*/ Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_CONST_CAST:
+ S = CXXConstCastExpr::CreateEmpty(*Context);
+ break;
+
+ case pch::EXPR_CXX_FUNCTIONAL_CAST:
+ S = CXXFunctionalCastExpr::CreateEmpty(*Context,
+ /*PathSize*/ Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_BOOL_LITERAL:
+ S = new (Context) CXXBoolLiteralExpr(Empty);
+ break;
+
+ case pch::EXPR_CXX_NULL_PTR_LITERAL:
+ S = new (Context) CXXNullPtrLiteralExpr(Empty);
+ break;
+ case pch::EXPR_CXX_TYPEID_EXPR:
+ S = new (Context) CXXTypeidExpr(Empty, true);
+ break;
+ case pch::EXPR_CXX_TYPEID_TYPE:
+ S = new (Context) CXXTypeidExpr(Empty, false);
+ break;
+ case pch::EXPR_CXX_THIS:
+ S = new (Context) CXXThisExpr(Empty);
+ break;
+ case pch::EXPR_CXX_THROW:
+ S = new (Context) CXXThrowExpr(Empty);
+ break;
+ case pch::EXPR_CXX_DEFAULT_ARG: {
+ bool HasOtherExprStored = Record[PCHStmtReader::NumExprFields];
+ if (HasOtherExprStored) {
+ Expr *SubExpr = ReadSubExpr();
+ S = CXXDefaultArgExpr::Create(*Context, SourceLocation(), 0, SubExpr);
+ } else
+ S = new (Context) CXXDefaultArgExpr(Empty);
+ break;
+ }
+ case pch::EXPR_CXX_BIND_TEMPORARY:
+ S = new (Context) CXXBindTemporaryExpr(Empty);
+ break;
+ case pch::EXPR_CXX_BIND_REFERENCE:
+ S = new (Context) CXXBindReferenceExpr(Empty);
+ break;
+
+ case pch::EXPR_CXX_SCALAR_VALUE_INIT:
+ S = new (Context) CXXScalarValueInitExpr(Empty);
+ break;
+ case pch::EXPR_CXX_NEW:
+ S = new (Context) CXXNewExpr(Empty);
+ break;
+ case pch::EXPR_CXX_DELETE:
+ S = new (Context) CXXDeleteExpr(Empty);
+ break;
+ case pch::EXPR_CXX_PSEUDO_DESTRUCTOR:
+ S = new (Context) CXXPseudoDestructorExpr(Empty);
+ break;
+
+ case pch::EXPR_CXX_EXPR_WITH_TEMPORARIES:
+ S = new (Context) CXXExprWithTemporaries(Empty);
+ break;
+
+ case pch::EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
+ S = CXXDependentScopeMemberExpr::CreateEmpty(*Context,
+ /*NumTemplateArgs=*/Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
+ S = DependentScopeDeclRefExpr::CreateEmpty(*Context,
+ /*NumTemplateArgs=*/Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_UNRESOLVED_CONSTRUCT:
+ S = CXXUnresolvedConstructExpr::CreateEmpty(*Context,
+ /*NumArgs=*/Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_UNRESOLVED_MEMBER:
+ S = UnresolvedMemberExpr::CreateEmpty(*Context,
+ /*NumTemplateArgs=*/Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_UNRESOLVED_LOOKUP:
+ S = UnresolvedLookupExpr::CreateEmpty(*Context,
+ /*NumTemplateArgs=*/Record[PCHStmtReader::NumExprFields]);
+ break;
+
+ case pch::EXPR_CXX_UNARY_TYPE_TRAIT:
+ S = new (Context) UnaryTypeTraitExpr(Empty);
+ break;
+ }
+
+ // We hit a STMT_STOP, so we're done with this expression.
+ if (Finished)
+ break;
+
+ ++NumStatementsRead;
+
+ if (S)
+ Reader.Visit(S);
+
+ assert(Idx == Record.size() && "Invalid deserialization of statement");
+ StmtStack.push_back(S);
+ }
+
+#ifndef NDEBUG
+ assert(StmtStack.size() > PrevNumStmts && "Read too many sub stmts!");
+ assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
+#endif
+
+ return StmtStack.pop_back_val();
+}
diff --git a/clang/lib/Serialization/PCHWriter.cpp b/clang/lib/Serialization/PCHWriter.cpp
new file mode 100644
index 00000000000..f75373a33be
--- /dev/null
+++ b/clang/lib/Serialization/PCHWriter.cpp
@@ -0,0 +1,3094 @@
+//===--- PCHWriter.cpp - Precompiled Headers Writer -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the PCHWriter class, which writes a precompiled header.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Serialization/PCHWriter.h"
+#include "clang/Sema/Sema.h"
+#include "clang/Sema/IdentifierResolver.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclContextInternals.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/Type.h"
+#include "clang/AST/TypeLocVisitor.h"
+#include "clang/Serialization/PCHReader.h"
+#include "clang/Lex/MacroInfo.h"
+#include "clang/Lex/PreprocessingRecord.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Lex/HeaderSearch.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/OnDiskHashTable.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/SourceManagerInternals.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Basic/Version.h"
+#include "llvm/ADT/APFloat.h"
+#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Bitcode/BitstreamWriter.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/System/Path.h"
+#include <cstdio>
+using namespace clang;
+
+template <typename T, typename Allocator>
+T *data(std::vector<T, Allocator> &v) {
+ return v.empty() ? 0 : &v.front();
+}
+template <typename T, typename Allocator>
+const T *data(const std::vector<T, Allocator> &v) {
+ return v.empty() ? 0 : &v.front();
+}
+
+//===----------------------------------------------------------------------===//
+// Type serialization
+//===----------------------------------------------------------------------===//
+
+namespace {
+ class PCHTypeWriter {
+ PCHWriter &Writer;
+ PCHWriter::RecordData &Record;
+
+ public:
+ /// \brief Type code that corresponds to the record generated.
+ pch::TypeCode Code;
+
+ PCHTypeWriter(PCHWriter &Writer, PCHWriter::RecordData &Record)
+ : Writer(Writer), Record(Record), Code(pch::TYPE_EXT_QUAL) { }
+
+ void VisitArrayType(const ArrayType *T);
+ void VisitFunctionType(const FunctionType *T);
+ void VisitTagType(const TagType *T);
+
+#define TYPE(Class, Base) void Visit##Class##Type(const Class##Type *T);
+#define ABSTRACT_TYPE(Class, Base)
+#include "clang/AST/TypeNodes.def"
+ };
+}
+
+void PCHTypeWriter::VisitBuiltinType(const BuiltinType *T) {
+ assert(false && "Built-in types are never serialized");
+}
+
+void PCHTypeWriter::VisitComplexType(const ComplexType *T) {
+ Writer.AddTypeRef(T->getElementType(), Record);
+ Code = pch::TYPE_COMPLEX;
+}
+
+void PCHTypeWriter::VisitPointerType(const PointerType *T) {
+ Writer.AddTypeRef(T->getPointeeType(), Record);
+ Code = pch::TYPE_POINTER;
+}
+
+void PCHTypeWriter::VisitBlockPointerType(const BlockPointerType *T) {
+ Writer.AddTypeRef(T->getPointeeType(), Record);
+ Code = pch::TYPE_BLOCK_POINTER;
+}
+
+void PCHTypeWriter::VisitLValueReferenceType(const LValueReferenceType *T) {
+ Writer.AddTypeRef(T->getPointeeType(), Record);
+ Code = pch::TYPE_LVALUE_REFERENCE;
+}
+
+void PCHTypeWriter::VisitRValueReferenceType(const RValueReferenceType *T) {
+ Writer.AddTypeRef(T->getPointeeType(), Record);
+ Code = pch::TYPE_RVALUE_REFERENCE;
+}
+
+void PCHTypeWriter::VisitMemberPointerType(const MemberPointerType *T) {
+ Writer.AddTypeRef(T->getPointeeType(), Record);
+ Writer.AddTypeRef(QualType(T->getClass(), 0), Record);
+ Code = pch::TYPE_MEMBER_POINTER;
+}
+
+void PCHTypeWriter::VisitArrayType(const ArrayType *T) {
+ Writer.AddTypeRef(T->getElementType(), Record);
+ Record.push_back(T->getSizeModifier()); // FIXME: stable values
+ Record.push_back(T->getIndexTypeCVRQualifiers()); // FIXME: stable values
+}
+
+void PCHTypeWriter::VisitConstantArrayType(const ConstantArrayType *T) {
+ VisitArrayType(T);
+ Writer.AddAPInt(T->getSize(), Record);
+ Code = pch::TYPE_CONSTANT_ARRAY;
+}
+
+void PCHTypeWriter::VisitIncompleteArrayType(const IncompleteArrayType *T) {
+ VisitArrayType(T);
+ Code = pch::TYPE_INCOMPLETE_ARRAY;
+}
+
+void PCHTypeWriter::VisitVariableArrayType(const VariableArrayType *T) {
+ VisitArrayType(T);
+ Writer.AddSourceLocation(T->getLBracketLoc(), Record);
+ Writer.AddSourceLocation(T->getRBracketLoc(), Record);
+ Writer.AddStmt(T->getSizeExpr());
+ Code = pch::TYPE_VARIABLE_ARRAY;
+}
+
+void PCHTypeWriter::VisitVectorType(const VectorType *T) {
+ Writer.AddTypeRef(T->getElementType(), Record);
+ Record.push_back(T->getNumElements());
+ Record.push_back(T->getAltiVecSpecific());
+ Code = pch::TYPE_VECTOR;
+}
+
+void PCHTypeWriter::VisitExtVectorType(const ExtVectorType *T) {
+ VisitVectorType(T);
+ Code = pch::TYPE_EXT_VECTOR;
+}
+
+void PCHTypeWriter::VisitFunctionType(const FunctionType *T) {
+ Writer.AddTypeRef(T->getResultType(), Record);
+ FunctionType::ExtInfo C = T->getExtInfo();
+ Record.push_back(C.getNoReturn());
+ Record.push_back(C.getRegParm());
+ // FIXME: need to stabilize encoding of calling convention...
+ Record.push_back(C.getCC());
+}
+
+void PCHTypeWriter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
+ VisitFunctionType(T);
+ Code = pch::TYPE_FUNCTION_NO_PROTO;
+}
+
+void PCHTypeWriter::VisitFunctionProtoType(const FunctionProtoType *T) {
+ VisitFunctionType(T);
+ Record.push_back(T->getNumArgs());
+ for (unsigned I = 0, N = T->getNumArgs(); I != N; ++I)
+ Writer.AddTypeRef(T->getArgType(I), Record);
+ Record.push_back(T->isVariadic());
+ Record.push_back(T->getTypeQuals());
+ Record.push_back(T->hasExceptionSpec());
+ Record.push_back(T->hasAnyExceptionSpec());
+ Record.push_back(T->getNumExceptions());
+ for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I)
+ Writer.AddTypeRef(T->getExceptionType(I), Record);
+ Code = pch::TYPE_FUNCTION_PROTO;
+}
+
+void PCHTypeWriter::VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
+ Writer.AddDeclRef(T->getDecl(), Record);
+ Code = pch::TYPE_UNRESOLVED_USING;
+}
+
+void PCHTypeWriter::VisitTypedefType(const TypedefType *T) {
+ Writer.AddDeclRef(T->getDecl(), Record);
+ assert(!T->isCanonicalUnqualified() && "Invalid typedef ?");
+ Writer.AddTypeRef(T->getCanonicalTypeInternal(), Record);
+ Code = pch::TYPE_TYPEDEF;
+}
+
+void PCHTypeWriter::VisitTypeOfExprType(const TypeOfExprType *T) {
+ Writer.AddStmt(T->getUnderlyingExpr());
+ Code = pch::TYPE_TYPEOF_EXPR;
+}
+
+void PCHTypeWriter::VisitTypeOfType(const TypeOfType *T) {
+ Writer.AddTypeRef(T->getUnderlyingType(), Record);
+ Code = pch::TYPE_TYPEOF;
+}
+
+void PCHTypeWriter::VisitDecltypeType(const DecltypeType *T) {
+ Writer.AddStmt(T->getUnderlyingExpr());
+ Code = pch::TYPE_DECLTYPE;
+}
+
+void PCHTypeWriter::VisitTagType(const TagType *T) {
+ Record.push_back(T->isDependentType());
+ Writer.AddDeclRef(T->getDecl(), Record);
+ assert(!T->isBeingDefined() &&
+ "Cannot serialize in the middle of a type definition");
+}
+
+void PCHTypeWriter::VisitRecordType(const RecordType *T) {
+ VisitTagType(T);
+ Code = pch::TYPE_RECORD;
+}
+
+void PCHTypeWriter::VisitEnumType(const EnumType *T) {
+ VisitTagType(T);
+ Code = pch::TYPE_ENUM;
+}
+
+void
+PCHTypeWriter::VisitSubstTemplateTypeParmType(
+ const SubstTemplateTypeParmType *T) {
+ Writer.AddTypeRef(QualType(T->getReplacedParameter(), 0), Record);
+ Writer.AddTypeRef(T->getReplacementType(), Record);
+ Code = pch::TYPE_SUBST_TEMPLATE_TYPE_PARM;
+}
+
+void
+PCHTypeWriter::VisitTemplateSpecializationType(
+ const TemplateSpecializationType *T) {
+ Record.push_back(T->isDependentType());
+ Writer.AddTemplateName(T->getTemplateName(), Record);
+ Record.push_back(T->getNumArgs());
+ for (TemplateSpecializationType::iterator ArgI = T->begin(), ArgE = T->end();
+ ArgI != ArgE; ++ArgI)
+ Writer.AddTemplateArgument(*ArgI, Record);
+ Writer.AddTypeRef(T->isCanonicalUnqualified() ? QualType()
+ : T->getCanonicalTypeInternal(),
+ Record);
+ Code = pch::TYPE_TEMPLATE_SPECIALIZATION;
+}
+
+void
+PCHTypeWriter::VisitDependentSizedArrayType(const DependentSizedArrayType *T) {
+ VisitArrayType(T);
+ Writer.AddStmt(T->getSizeExpr());
+ Writer.AddSourceRange(T->getBracketsRange(), Record);
+ Code = pch::TYPE_DEPENDENT_SIZED_ARRAY;
+}
+
+void
+PCHTypeWriter::VisitDependentSizedExtVectorType(
+ const DependentSizedExtVectorType *T) {
+ // FIXME: Serialize this type (C++ only)
+ assert(false && "Cannot serialize dependent sized extended vector types");
+}
+
+void
+PCHTypeWriter::VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
+ Record.push_back(T->getDepth());
+ Record.push_back(T->getIndex());
+ Record.push_back(T->isParameterPack());
+ Writer.AddIdentifierRef(T->getName(), Record);
+ Code = pch::TYPE_TEMPLATE_TYPE_PARM;
+}
+
+void
+PCHTypeWriter::VisitDependentNameType(const DependentNameType *T) {
+ Record.push_back(T->getKeyword());
+ Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
+ Writer.AddIdentifierRef(T->getIdentifier(), Record);
+ Writer.AddTypeRef(T->isCanonicalUnqualified() ? QualType()
+ : T->getCanonicalTypeInternal(),
+ Record);
+ Code = pch::TYPE_DEPENDENT_NAME;
+}
+
+void
+PCHTypeWriter::VisitDependentTemplateSpecializationType(
+ const DependentTemplateSpecializationType *T) {
+ Record.push_back(T->getKeyword());
+ Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
+ Writer.AddIdentifierRef(T->getIdentifier(), Record);
+ Record.push_back(T->getNumArgs());
+ for (DependentTemplateSpecializationType::iterator
+ I = T->begin(), E = T->end(); I != E; ++I)
+ Writer.AddTemplateArgument(*I, Record);
+ Code = pch::TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION;
+}
+
+void PCHTypeWriter::VisitElaboratedType(const ElaboratedType *T) {
+ Record.push_back(T->getKeyword());
+ Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
+ Writer.AddTypeRef(T->getNamedType(), Record);
+ Code = pch::TYPE_ELABORATED;
+}
+
+void PCHTypeWriter::VisitInjectedClassNameType(const InjectedClassNameType *T) {
+ Writer.AddDeclRef(T->getDecl(), Record);
+ Writer.AddTypeRef(T->getInjectedSpecializationType(), Record);
+ Code = pch::TYPE_INJECTED_CLASS_NAME;
+}
+
+void PCHTypeWriter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
+ Writer.AddDeclRef(T->getDecl(), Record);
+ Code = pch::TYPE_OBJC_INTERFACE;
+}
+
+void PCHTypeWriter::VisitObjCObjectType(const ObjCObjectType *T) {
+ Writer.AddTypeRef(T->getBaseType(), Record);
+ Record.push_back(T->getNumProtocols());
+ for (ObjCObjectType::qual_iterator I = T->qual_begin(),
+ E = T->qual_end(); I != E; ++I)
+ Writer.AddDeclRef(*I, Record);
+ Code = pch::TYPE_OBJC_OBJECT;
+}
+
+void
+PCHTypeWriter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
+ Writer.AddTypeRef(T->getPointeeType(), Record);
+ Code = pch::TYPE_OBJC_OBJECT_POINTER;
+}
+
+namespace {
+
+class TypeLocWriter : public TypeLocVisitor<TypeLocWriter> {
+ PCHWriter &Writer;
+ PCHWriter::RecordData &Record;
+
+public:
+ TypeLocWriter(PCHWriter &Writer, PCHWriter::RecordData &Record)
+ : Writer(Writer), Record(Record) { }
+
+#define ABSTRACT_TYPELOC(CLASS, PARENT)
+#define TYPELOC(CLASS, PARENT) \
+ void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
+#include "clang/AST/TypeLocNodes.def"
+
+ void VisitArrayTypeLoc(ArrayTypeLoc TyLoc);
+ void VisitFunctionTypeLoc(FunctionTypeLoc TyLoc);
+};
+
+}
+
+void TypeLocWriter::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
+ // nothing to do
+}
+void TypeLocWriter::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getBuiltinLoc(), Record);
+ if (TL.needsExtraLocalData()) {
+ Record.push_back(TL.getWrittenTypeSpec());
+ Record.push_back(TL.getWrittenSignSpec());
+ Record.push_back(TL.getWrittenWidthSpec());
+ Record.push_back(TL.hasModeAttr());
+ }
+}
+void TypeLocWriter::VisitComplexTypeLoc(ComplexTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitPointerTypeLoc(PointerTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getStarLoc(), Record);
+}
+void TypeLocWriter::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getCaretLoc(), Record);
+}
+void TypeLocWriter::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getAmpLoc(), Record);
+}
+void TypeLocWriter::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getAmpAmpLoc(), Record);
+}
+void TypeLocWriter::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getStarLoc(), Record);
+}
+void TypeLocWriter::VisitArrayTypeLoc(ArrayTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getLBracketLoc(), Record);
+ Writer.AddSourceLocation(TL.getRBracketLoc(), Record);
+ Record.push_back(TL.getSizeExpr() ? 1 : 0);
+ if (TL.getSizeExpr())
+ Writer.AddStmt(TL.getSizeExpr());
+}
+void TypeLocWriter::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocWriter::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocWriter::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocWriter::VisitDependentSizedArrayTypeLoc(
+ DependentSizedArrayTypeLoc TL) {
+ VisitArrayTypeLoc(TL);
+}
+void TypeLocWriter::VisitDependentSizedExtVectorTypeLoc(
+ DependentSizedExtVectorTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitVectorTypeLoc(VectorTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getLParenLoc(), Record);
+ Writer.AddSourceLocation(TL.getRParenLoc(), Record);
+ for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
+ Writer.AddDeclRef(TL.getArg(i), Record);
+}
+void TypeLocWriter::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
+ VisitFunctionTypeLoc(TL);
+}
+void TypeLocWriter::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
+ VisitFunctionTypeLoc(TL);
+}
+void TypeLocWriter::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getTypeofLoc(), Record);
+ Writer.AddSourceLocation(TL.getLParenLoc(), Record);
+ Writer.AddSourceLocation(TL.getRParenLoc(), Record);
+}
+void TypeLocWriter::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getTypeofLoc(), Record);
+ Writer.AddSourceLocation(TL.getLParenLoc(), Record);
+ Writer.AddSourceLocation(TL.getRParenLoc(), Record);
+ Writer.AddTypeSourceInfo(TL.getUnderlyingTInfo(), Record);
+}
+void TypeLocWriter::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitRecordTypeLoc(RecordTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitEnumTypeLoc(EnumTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitSubstTemplateTypeParmTypeLoc(
+ SubstTemplateTypeParmTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitTemplateSpecializationTypeLoc(
+ TemplateSpecializationTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getTemplateNameLoc(), Record);
+ Writer.AddSourceLocation(TL.getLAngleLoc(), Record);
+ Writer.AddSourceLocation(TL.getRAngleLoc(), Record);
+ for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
+ Writer.AddTemplateArgumentLocInfo(TL.getArgLoc(i).getArgument().getKind(),
+ TL.getArgLoc(i).getLocInfo(), Record);
+}
+void TypeLocWriter::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getKeywordLoc(), Record);
+ Writer.AddSourceRange(TL.getQualifierRange(), Record);
+}
+void TypeLocWriter::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getKeywordLoc(), Record);
+ Writer.AddSourceRange(TL.getQualifierRange(), Record);
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitDependentTemplateSpecializationTypeLoc(
+ DependentTemplateSpecializationTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getKeywordLoc(), Record);
+ Writer.AddSourceRange(TL.getQualifierRange(), Record);
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+ Writer.AddSourceLocation(TL.getLAngleLoc(), Record);
+ Writer.AddSourceLocation(TL.getRAngleLoc(), Record);
+ for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
+ Writer.AddTemplateArgumentLocInfo(TL.getArgLoc(I).getArgument().getKind(),
+ TL.getArgLoc(I).getLocInfo(), Record);
+}
+void TypeLocWriter::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
+void TypeLocWriter::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
+ Record.push_back(TL.hasBaseTypeAsWritten());
+ Writer.AddSourceLocation(TL.getLAngleLoc(), Record);
+ Writer.AddSourceLocation(TL.getRAngleLoc(), Record);
+ for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
+ Writer.AddSourceLocation(TL.getProtocolLoc(i), Record);
+}
+void TypeLocWriter::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
+ Writer.AddSourceLocation(TL.getStarLoc(), Record);
+}
+
+//===----------------------------------------------------------------------===//
+// PCHWriter Implementation
+//===----------------------------------------------------------------------===//
+
+static void EmitBlockID(unsigned ID, const char *Name,
+ llvm::BitstreamWriter &Stream,
+ PCHWriter::RecordData &Record) {
+ Record.clear();
+ Record.push_back(ID);
+ Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETBID, Record);
+
+ // Emit the block name if present.
+ if (Name == 0 || Name[0] == 0) return;
+ Record.clear();
+ while (*Name)
+ Record.push_back(*Name++);
+ Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_BLOCKNAME, Record);
+}
+
+static void EmitRecordID(unsigned ID, const char *Name,
+ llvm::BitstreamWriter &Stream,
+ PCHWriter::RecordData &Record) {
+ Record.clear();
+ Record.push_back(ID);
+ while (*Name)
+ Record.push_back(*Name++);
+ Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETRECORDNAME, Record);
+}
+
+static void AddStmtsExprs(llvm::BitstreamWriter &Stream,
+ PCHWriter::RecordData &Record) {
+#define RECORD(X) EmitRecordID(pch::X, #X, Stream, Record)
+ RECORD(STMT_STOP);
+ RECORD(STMT_NULL_PTR);
+ RECORD(STMT_NULL);
+ RECORD(STMT_COMPOUND);
+ RECORD(STMT_CASE);
+ RECORD(STMT_DEFAULT);
+ RECORD(STMT_LABEL);
+ RECORD(STMT_IF);
+ RECORD(STMT_SWITCH);
+ RECORD(STMT_WHILE);
+ RECORD(STMT_DO);
+ RECORD(STMT_FOR);
+ RECORD(STMT_GOTO);
+ RECORD(STMT_INDIRECT_GOTO);
+ RECORD(STMT_CONTINUE);
+ RECORD(STMT_BREAK);
+ RECORD(STMT_RETURN);
+ RECORD(STMT_DECL);
+ RECORD(STMT_ASM);
+ RECORD(EXPR_PREDEFINED);
+ RECORD(EXPR_DECL_REF);
+ RECORD(EXPR_INTEGER_LITERAL);
+ RECORD(EXPR_FLOATING_LITERAL);
+ RECORD(EXPR_IMAGINARY_LITERAL);
+ RECORD(EXPR_STRING_LITERAL);
+ RECORD(EXPR_CHARACTER_LITERAL);
+ RECORD(EXPR_PAREN);
+ RECORD(EXPR_UNARY_OPERATOR);
+ RECORD(EXPR_SIZEOF_ALIGN_OF);
+ RECORD(EXPR_ARRAY_SUBSCRIPT);
+ RECORD(EXPR_CALL);
+ RECORD(EXPR_MEMBER);
+ RECORD(EXPR_BINARY_OPERATOR);
+ RECORD(EXPR_COMPOUND_ASSIGN_OPERATOR);
+ RECORD(EXPR_CONDITIONAL_OPERATOR);
+ RECORD(EXPR_IMPLICIT_CAST);
+ RECORD(EXPR_CSTYLE_CAST);
+ RECORD(EXPR_COMPOUND_LITERAL);
+ RECORD(EXPR_EXT_VECTOR_ELEMENT);
+ RECORD(EXPR_INIT_LIST);
+ RECORD(EXPR_DESIGNATED_INIT);
+ RECORD(EXPR_IMPLICIT_VALUE_INIT);
+ RECORD(EXPR_VA_ARG);
+ RECORD(EXPR_ADDR_LABEL);
+ RECORD(EXPR_STMT);
+ RECORD(EXPR_TYPES_COMPATIBLE);
+ RECORD(EXPR_CHOOSE);
+ RECORD(EXPR_GNU_NULL);
+ RECORD(EXPR_SHUFFLE_VECTOR);
+ RECORD(EXPR_BLOCK);
+ RECORD(EXPR_BLOCK_DECL_REF);
+ RECORD(EXPR_OBJC_STRING_LITERAL);
+ RECORD(EXPR_OBJC_ENCODE);
+ RECORD(EXPR_OBJC_SELECTOR_EXPR);
+ RECORD(EXPR_OBJC_PROTOCOL_EXPR);
+ RECORD(EXPR_OBJC_IVAR_REF_EXPR);
+ RECORD(EXPR_OBJC_PROPERTY_REF_EXPR);
+ RECORD(EXPR_OBJC_KVC_REF_EXPR);
+ RECORD(EXPR_OBJC_MESSAGE_EXPR);
+ RECORD(EXPR_OBJC_SUPER_EXPR);
+ RECORD(STMT_OBJC_FOR_COLLECTION);
+ RECORD(STMT_OBJC_CATCH);
+ RECORD(STMT_OBJC_FINALLY);
+ RECORD(STMT_OBJC_AT_TRY);
+ RECORD(STMT_OBJC_AT_SYNCHRONIZED);
+ RECORD(STMT_OBJC_AT_THROW);
+ RECORD(EXPR_CXX_OPERATOR_CALL);
+ RECORD(EXPR_CXX_CONSTRUCT);
+ RECORD(EXPR_CXX_STATIC_CAST);
+ RECORD(EXPR_CXX_DYNAMIC_CAST);
+ RECORD(EXPR_CXX_REINTERPRET_CAST);
+ RECORD(EXPR_CXX_CONST_CAST);
+ RECORD(EXPR_CXX_FUNCTIONAL_CAST);
+ RECORD(EXPR_CXX_BOOL_LITERAL);
+ RECORD(EXPR_CXX_NULL_PTR_LITERAL);
+#undef RECORD
+}
+
+void PCHWriter::WriteBlockInfoBlock() {
+ RecordData Record;
+ Stream.EnterSubblock(llvm::bitc::BLOCKINFO_BLOCK_ID, 3);
+
+#define BLOCK(X) EmitBlockID(pch::X ## _ID, #X, Stream, Record)
+#define RECORD(X) EmitRecordID(pch::X, #X, Stream, Record)
+
+ // PCH Top-Level Block.
+ BLOCK(PCH_BLOCK);
+ RECORD(ORIGINAL_FILE_NAME);
+ RECORD(TYPE_OFFSET);
+ RECORD(DECL_OFFSET);
+ RECORD(LANGUAGE_OPTIONS);
+ RECORD(METADATA);
+ RECORD(IDENTIFIER_OFFSET);
+ RECORD(IDENTIFIER_TABLE);
+ RECORD(EXTERNAL_DEFINITIONS);
+ RECORD(SPECIAL_TYPES);
+ RECORD(STATISTICS);
+ RECORD(TENTATIVE_DEFINITIONS);
+ RECORD(UNUSED_FILESCOPED_DECLS);
+ RECORD(LOCALLY_SCOPED_EXTERNAL_DECLS);
+ RECORD(SELECTOR_OFFSETS);
+ RECORD(METHOD_POOL);
+ RECORD(PP_COUNTER_VALUE);
+ RECORD(SOURCE_LOCATION_OFFSETS);
+ RECORD(SOURCE_LOCATION_PRELOADS);
+ RECORD(STAT_CACHE);
+ RECORD(EXT_VECTOR_DECLS);
+ RECORD(VERSION_CONTROL_BRANCH_REVISION);
+ RECORD(MACRO_DEFINITION_OFFSETS);
+ RECORD(CHAINED_METADATA);
+ RECORD(REFERENCED_SELECTOR_POOL);
+
+ // SourceManager Block.
+ BLOCK(SOURCE_MANAGER_BLOCK);
+ RECORD(SM_SLOC_FILE_ENTRY);
+ RECORD(SM_SLOC_BUFFER_ENTRY);
+ RECORD(SM_SLOC_BUFFER_BLOB);
+ RECORD(SM_SLOC_INSTANTIATION_ENTRY);
+ RECORD(SM_LINE_TABLE);
+
+ // Preprocessor Block.
+ BLOCK(PREPROCESSOR_BLOCK);
+ RECORD(PP_MACRO_OBJECT_LIKE);
+ RECORD(PP_MACRO_FUNCTION_LIKE);
+ RECORD(PP_TOKEN);
+ RECORD(PP_MACRO_INSTANTIATION);
+ RECORD(PP_MACRO_DEFINITION);
+
+ // Decls and Types block.
+ BLOCK(DECLTYPES_BLOCK);
+ RECORD(TYPE_EXT_QUAL);
+ RECORD(TYPE_COMPLEX);
+ RECORD(TYPE_POINTER);
+ RECORD(TYPE_BLOCK_POINTER);
+ RECORD(TYPE_LVALUE_REFERENCE);
+ RECORD(TYPE_RVALUE_REFERENCE);
+ RECORD(TYPE_MEMBER_POINTER);
+ RECORD(TYPE_CONSTANT_ARRAY);
+ RECORD(TYPE_INCOMPLETE_ARRAY);
+ RECORD(TYPE_VARIABLE_ARRAY);
+ RECORD(TYPE_VECTOR);
+ RECORD(TYPE_EXT_VECTOR);
+ RECORD(TYPE_FUNCTION_PROTO);
+ RECORD(TYPE_FUNCTION_NO_PROTO);
+ RECORD(TYPE_TYPEDEF);
+ RECORD(TYPE_TYPEOF_EXPR);
+ RECORD(TYPE_TYPEOF);
+ RECORD(TYPE_RECORD);
+ RECORD(TYPE_ENUM);
+ RECORD(TYPE_OBJC_INTERFACE);
+ RECORD(TYPE_OBJC_OBJECT);
+ RECORD(TYPE_OBJC_OBJECT_POINTER);
+ RECORD(DECL_ATTR);
+ RECORD(DECL_TRANSLATION_UNIT);
+ RECORD(DECL_TYPEDEF);
+ RECORD(DECL_ENUM);
+ RECORD(DECL_RECORD);
+ RECORD(DECL_ENUM_CONSTANT);
+ RECORD(DECL_FUNCTION);
+ RECORD(DECL_OBJC_METHOD);
+ RECORD(DECL_OBJC_INTERFACE);
+ RECORD(DECL_OBJC_PROTOCOL);
+ RECORD(DECL_OBJC_IVAR);
+ RECORD(DECL_OBJC_AT_DEFS_FIELD);
+ RECORD(DECL_OBJC_CLASS);
+ RECORD(DECL_OBJC_FORWARD_PROTOCOL);
+ RECORD(DECL_OBJC_CATEGORY);
+ RECORD(DECL_OBJC_CATEGORY_IMPL);
+ RECORD(DECL_OBJC_IMPLEMENTATION);
+ RECORD(DECL_OBJC_COMPATIBLE_ALIAS);
+ RECORD(DECL_OBJC_PROPERTY);
+ RECORD(DECL_OBJC_PROPERTY_IMPL);
+ RECORD(DECL_FIELD);
+ RECORD(DECL_VAR);
+ RECORD(DECL_IMPLICIT_PARAM);
+ RECORD(DECL_PARM_VAR);
+ RECORD(DECL_FILE_SCOPE_ASM);
+ RECORD(DECL_BLOCK);
+ RECORD(DECL_CONTEXT_LEXICAL);
+ RECORD(DECL_CONTEXT_VISIBLE);
+ // Statements and Exprs can occur in the Decls and Types block.
+ AddStmtsExprs(Stream, Record);
+#undef RECORD
+#undef BLOCK
+ Stream.ExitBlock();
+}
+
+/// \brief Adjusts the given filename to only write out the portion of the
+/// filename that is not part of the system root directory.
+///
+/// \param Filename the file name to adjust.
+///
+/// \param isysroot When non-NULL, the PCH file is a relocatable PCH file and
+/// the returned filename will be adjusted by this system root.
+///
+/// \returns either the original filename (if it needs no adjustment) or the
+/// adjusted filename (which points into the @p Filename parameter).
+static const char *
+adjustFilenameForRelocatablePCH(const char *Filename, const char *isysroot) {
+ assert(Filename && "No file name to adjust?");
+
+ if (!isysroot)
+ return Filename;
+
+ // Verify that the filename and the system root have the same prefix.
+ unsigned Pos = 0;
+ for (; Filename[Pos] && isysroot[Pos]; ++Pos)
+ if (Filename[Pos] != isysroot[Pos])
+ return Filename; // Prefixes don't match.
+
+ // We hit the end of the filename before we hit the end of the system root.
+ if (!Filename[Pos])
+ return Filename;
+
+ // If the file name has a '/' at the current position, skip over the '/'.
+ // We distinguish sysroot-based includes from absolute includes by the
+ // absence of '/' at the beginning of sysroot-based includes.
+ if (Filename[Pos] == '/')
+ ++Pos;
+
+ return Filename + Pos;
+}
+
+/// \brief Write the PCH metadata (e.g., i686-apple-darwin9).
+void PCHWriter::WriteMetadata(ASTContext &Context, const char *isysroot) {
+ using namespace llvm;
+
+ // Metadata
+ const TargetInfo &Target = Context.Target;
+ BitCodeAbbrev *MetaAbbrev = new BitCodeAbbrev();
+ MetaAbbrev->Add(BitCodeAbbrevOp(
+ Chain ? pch::CHAINED_METADATA : pch::METADATA));
+ MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // PCH major
+ MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // PCH minor
+ MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang major
+ MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang minor
+ MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Relocatable
+ // Target triple or chained PCH name
+ MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned MetaAbbrevCode = Stream.EmitAbbrev(MetaAbbrev);
+
+ RecordData Record;
+ Record.push_back(Chain ? pch::CHAINED_METADATA : pch::METADATA);
+ Record.push_back(pch::VERSION_MAJOR);
+ Record.push_back(pch::VERSION_MINOR);
+ Record.push_back(CLANG_VERSION_MAJOR);
+ Record.push_back(CLANG_VERSION_MINOR);
+ Record.push_back(isysroot != 0);
+ // FIXME: This writes the absolute path for chained headers.
+ const std::string &BlobStr = Chain ? Chain->getFileName() : Target.getTriple().getTriple();
+ Stream.EmitRecordWithBlob(MetaAbbrevCode, Record, BlobStr);
+
+ // Original file name
+ SourceManager &SM = Context.getSourceManager();
+ if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) {
+ BitCodeAbbrev *FileAbbrev = new BitCodeAbbrev();
+ FileAbbrev->Add(BitCodeAbbrevOp(pch::ORIGINAL_FILE_NAME));
+ FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
+ unsigned FileAbbrevCode = Stream.EmitAbbrev(FileAbbrev);
+
+ llvm::sys::Path MainFilePath(MainFile->getName());
+
+ MainFilePath.makeAbsolute();
+
+ const char *MainFileNameStr = MainFilePath.c_str();
+ MainFileNameStr = adjustFilenameForRelocatablePCH(MainFileNameStr,
+ isysroot);
+ RecordData Record;
+ Record.push_back(pch::ORIGINAL_FILE_NAME);
+ Stream.EmitRecordWithBlob(FileAbbrevCode, Record, MainFileNameStr);
+ }
+
+ // Repository branch/version information.
+ BitCodeAbbrev *RepoAbbrev = new BitCodeAbbrev();
+ RepoAbbrev->Add(BitCodeAbbrevOp(pch::VERSION_CONTROL_BRANCH_REVISION));
+ RepoAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // SVN branch/tag
+ unsigned RepoAbbrevCode = Stream.EmitAbbrev(RepoAbbrev);
+ Record.clear();
+ Record.push_back(pch::VERSION_CONTROL_BRANCH_REVISION);
+ Stream.EmitRecordWithBlob(RepoAbbrevCode, Record,
+ getClangFullRepositoryVersion());
+}
+
+/// \brief Write the LangOptions structure.
+void PCHWriter::WriteLanguageOptions(const LangOptions &LangOpts) {
+ RecordData Record;
+ Record.push_back(LangOpts.Trigraphs);
+ Record.push_back(LangOpts.BCPLComment); // BCPL-style '//' comments.
+ Record.push_back(LangOpts.DollarIdents); // '$' allowed in identifiers.
+ Record.push_back(LangOpts.AsmPreprocessor); // Preprocessor in asm mode.
+ Record.push_back(LangOpts.GNUMode); // True in gnu99 mode false in c99 mode (etc)
+ Record.push_back(LangOpts.GNUKeywords); // Allow GNU-extension keywords
+ Record.push_back(LangOpts.ImplicitInt); // C89 implicit 'int'.
+ Record.push_back(LangOpts.Digraphs); // C94, C99 and C++
+ Record.push_back(LangOpts.HexFloats); // C99 Hexadecimal float constants.
+ Record.push_back(LangOpts.C99); // C99 Support
+ Record.push_back(LangOpts.Microsoft); // Microsoft extensions.
+ Record.push_back(LangOpts.CPlusPlus); // C++ Support
+ Record.push_back(LangOpts.CPlusPlus0x); // C++0x Support
+ Record.push_back(LangOpts.CXXOperatorNames); // Treat C++ operator names as keywords.
+
+ Record.push_back(LangOpts.ObjC1); // Objective-C 1 support enabled.
+ Record.push_back(LangOpts.ObjC2); // Objective-C 2 support enabled.
+ Record.push_back(LangOpts.ObjCNonFragileABI); // Objective-C
+ // modern abi enabled.
+ Record.push_back(LangOpts.ObjCNonFragileABI2); // Objective-C enhanced
+ // modern abi enabled.
+ Record.push_back(LangOpts.NoConstantCFStrings); // non cfstring generation enabled..
+
+ Record.push_back(LangOpts.PascalStrings); // Allow Pascal strings
+ Record.push_back(LangOpts.WritableStrings); // Allow writable strings
+ Record.push_back(LangOpts.LaxVectorConversions);
+ Record.push_back(LangOpts.AltiVec);
+ Record.push_back(LangOpts.Exceptions); // Support exception handling.
+ Record.push_back(LangOpts.SjLjExceptions);
+
+ Record.push_back(LangOpts.NeXTRuntime); // Use NeXT runtime.
+ Record.push_back(LangOpts.Freestanding); // Freestanding implementation
+ Record.push_back(LangOpts.NoBuiltin); // Do not use builtin functions (-fno-builtin)
+
+ // Whether static initializers are protected by locks.
+ Record.push_back(LangOpts.ThreadsafeStatics);
+ Record.push_back(LangOpts.POSIXThreads);
+ Record.push_back(LangOpts.Blocks); // block extension to C
+ Record.push_back(LangOpts.EmitAllDecls); // Emit all declarations, even if
+ // they are unused.
+ Record.push_back(LangOpts.MathErrno); // Math functions must respect errno
+ // (modulo the platform support).
+
+ Record.push_back(LangOpts.getSignedOverflowBehavior());
+ Record.push_back(LangOpts.HeinousExtensions);
+
+ Record.push_back(LangOpts.Optimize); // Whether __OPTIMIZE__ should be defined.
+ Record.push_back(LangOpts.OptimizeSize); // Whether __OPTIMIZE_SIZE__ should be
+ // defined.
+ Record.push_back(LangOpts.Static); // Should __STATIC__ be defined (as
+ // opposed to __DYNAMIC__).
+ Record.push_back(LangOpts.PICLevel); // The value for __PIC__, if non-zero.
+
+ Record.push_back(LangOpts.GNUInline); // Should GNU inline semantics be
+ // used (instead of C99 semantics).
+ Record.push_back(LangOpts.NoInline); // Should __NO_INLINE__ be defined.
+ Record.push_back(LangOpts.AccessControl); // Whether C++ access control should
+ // be enabled.
+ Record.push_back(LangOpts.CharIsSigned); // Whether char is a signed or
+ // unsigned type
+ Record.push_back(LangOpts.ShortWChar); // force wchar_t to be unsigned short
+ Record.push_back(LangOpts.getGCMode());
+ Record.push_back(LangOpts.getVisibilityMode());
+ Record.push_back(LangOpts.getStackProtectorMode());
+ Record.push_back(LangOpts.InstantiationDepth);
+ Record.push_back(LangOpts.OpenCL);
+ Record.push_back(LangOpts.CatchUndefined);
+ Record.push_back(LangOpts.ElideConstructors);
+ Record.push_back(LangOpts.SpellChecking);
+ Stream.EmitRecord(pch::LANGUAGE_OPTIONS, Record);
+}
+
+//===----------------------------------------------------------------------===//
+// stat cache Serialization
+//===----------------------------------------------------------------------===//
+
+namespace {
+// Trait used for the on-disk hash table of stat cache results.
+class PCHStatCacheTrait {
+public:
+ typedef const char * key_type;
+ typedef key_type key_type_ref;
+
+ typedef std::pair<int, struct stat> data_type;
+ typedef const data_type& data_type_ref;
+
+ static unsigned ComputeHash(const char *path) {
+ return llvm::HashString(path);
+ }
+
+ std::pair<unsigned,unsigned>
+ EmitKeyDataLength(llvm::raw_ostream& Out, const char *path,
+ data_type_ref Data) {
+ unsigned StrLen = strlen(path);
+ clang::io::Emit16(Out, StrLen);
+ unsigned DataLen = 1; // result value
+ if (Data.first == 0)
+ DataLen += 4 + 4 + 2 + 8 + 8;
+ clang::io::Emit8(Out, DataLen);
+ return std::make_pair(StrLen + 1, DataLen);
+ }
+
+ void EmitKey(llvm::raw_ostream& Out, const char *path, unsigned KeyLen) {
+ Out.write(path, KeyLen);
+ }
+
+ void EmitData(llvm::raw_ostream& Out, key_type_ref,
+ data_type_ref Data, unsigned DataLen) {
+ using namespace clang::io;
+ uint64_t Start = Out.tell(); (void)Start;
+
+ // Result of stat()
+ Emit8(Out, Data.first? 1 : 0);
+
+ if (Data.first == 0) {
+ Emit32(Out, (uint32_t) Data.second.st_ino);
+ Emit32(Out, (uint32_t) Data.second.st_dev);
+ Emit16(Out, (uint16_t) Data.second.st_mode);
+ Emit64(Out, (uint64_t) Data.second.st_mtime);
+ Emit64(Out, (uint64_t) Data.second.st_size);
+ }
+
+ assert(Out.tell() - Start == DataLen && "Wrong data length");
+ }
+};
+} // end anonymous namespace
+
+/// \brief Write the stat() system call cache to the PCH file.
+void PCHWriter::WriteStatCache(MemorizeStatCalls &StatCalls) {
+ // Build the on-disk hash table containing information about every
+ // stat() call.
+ OnDiskChainedHashTableGenerator<PCHStatCacheTrait> Generator;
+ unsigned NumStatEntries = 0;
+ for (MemorizeStatCalls::iterator Stat = StatCalls.begin(),
+ StatEnd = StatCalls.end();
+ Stat != StatEnd; ++Stat, ++NumStatEntries) {
+ const char *Filename = Stat->first();
+ Generator.insert(Filename, Stat->second);
+ }
+
+ // Create the on-disk hash table in a buffer.
+ llvm::SmallString<4096> StatCacheData;
+ uint32_t BucketOffset;
+ {
+ llvm::raw_svector_ostream Out(StatCacheData);
+ // Make sure that no bucket is at offset 0
+ clang::io::Emit32(Out, 0);
+ BucketOffset = Generator.Emit(Out);
+ }
+
+ // Create a blob abbreviation
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::STAT_CACHE));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned StatCacheAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ // Write the stat cache
+ RecordData Record;
+ Record.push_back(pch::STAT_CACHE);
+ Record.push_back(BucketOffset);
+ Record.push_back(NumStatEntries);
+ Stream.EmitRecordWithBlob(StatCacheAbbrev, Record, StatCacheData.str());
+}
+
+//===----------------------------------------------------------------------===//
+// Source Manager Serialization
+//===----------------------------------------------------------------------===//
+
+/// \brief Create an abbreviation for the SLocEntry that refers to a
+/// file.
+static unsigned CreateSLocFileAbbrev(llvm::BitstreamWriter &Stream) {
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::SM_SLOC_FILE_ENTRY));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Characteristic
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
+ // FileEntry fields.
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 12)); // Size
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 32)); // Modification time
+ // HeaderFileInfo fields.
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isImport
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // DirInfo
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumIncludes
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // ControllingMacro
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
+ return Stream.EmitAbbrev(Abbrev);
+}
+
+/// \brief Create an abbreviation for the SLocEntry that refers to a
+/// buffer.
+static unsigned CreateSLocBufferAbbrev(llvm::BitstreamWriter &Stream) {
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::SM_SLOC_BUFFER_ENTRY));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Characteristic
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Buffer name blob
+ return Stream.EmitAbbrev(Abbrev);
+}
+
+/// \brief Create an abbreviation for the SLocEntry that refers to a
+/// buffer's blob.
+static unsigned CreateSLocBufferBlobAbbrev(llvm::BitstreamWriter &Stream) {
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::SM_SLOC_BUFFER_BLOB));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Blob
+ return Stream.EmitAbbrev(Abbrev);
+}
+
+/// \brief Create an abbreviation for the SLocEntry that refers to an
+/// buffer.
+static unsigned CreateSLocInstantiationAbbrev(llvm::BitstreamWriter &Stream) {
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::SM_SLOC_INSTANTIATION_ENTRY));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Spelling location
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Start location
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // End location
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Token length
+ return Stream.EmitAbbrev(Abbrev);
+}
+
+/// \brief Writes the block containing the serialized form of the
+/// source manager.
+///
+/// TODO: We should probably use an on-disk hash table (stored in a
+/// blob), indexed based on the file name, so that we only create
+/// entries for files that we actually need. In the common case (no
+/// errors), we probably won't have to create file entries for any of
+/// the files in the AST.
+void PCHWriter::WriteSourceManagerBlock(SourceManager &SourceMgr,
+ const Preprocessor &PP,
+ const char *isysroot) {
+ RecordData Record;
+
+ // Enter the source manager block.
+ Stream.EnterSubblock(pch::SOURCE_MANAGER_BLOCK_ID, 3);
+
+ // Abbreviations for the various kinds of source-location entries.
+ unsigned SLocFileAbbrv = CreateSLocFileAbbrev(Stream);
+ unsigned SLocBufferAbbrv = CreateSLocBufferAbbrev(Stream);
+ unsigned SLocBufferBlobAbbrv = CreateSLocBufferBlobAbbrev(Stream);
+ unsigned SLocInstantiationAbbrv = CreateSLocInstantiationAbbrev(Stream);
+
+ // Write the line table.
+ if (SourceMgr.hasLineTable()) {
+ LineTableInfo &LineTable = SourceMgr.getLineTable();
+
+ // Emit the file names
+ Record.push_back(LineTable.getNumFilenames());
+ for (unsigned I = 0, N = LineTable.getNumFilenames(); I != N; ++I) {
+ // Emit the file name
+ const char *Filename = LineTable.getFilename(I);
+ Filename = adjustFilenameForRelocatablePCH(Filename, isysroot);
+ unsigned FilenameLen = Filename? strlen(Filename) : 0;
+ Record.push_back(FilenameLen);
+ if (FilenameLen)
+ Record.insert(Record.end(), Filename, Filename + FilenameLen);
+ }
+
+ // Emit the line entries
+ for (LineTableInfo::iterator L = LineTable.begin(), LEnd = LineTable.end();
+ L != LEnd; ++L) {
+ // Emit the file ID
+ Record.push_back(L->first);
+
+ // Emit the line entries
+ Record.push_back(L->second.size());
+ for (std::vector<LineEntry>::iterator LE = L->second.begin(),
+ LEEnd = L->second.end();
+ LE != LEEnd; ++LE) {
+ Record.push_back(LE->FileOffset);
+ Record.push_back(LE->LineNo);
+ Record.push_back(LE->FilenameID);
+ Record.push_back((unsigned)LE->FileKind);
+ Record.push_back(LE->IncludeOffset);
+ }
+ }
+ Stream.EmitRecord(pch::SM_LINE_TABLE, Record);
+ }
+
+ // Write out the source location entry table. We skip the first
+ // entry, which is always the same dummy entry.
+ std::vector<uint32_t> SLocEntryOffsets;
+ RecordData PreloadSLocs;
+ unsigned BaseSLocID = Chain ? Chain->getTotalNumSLocs() : 0;
+ SLocEntryOffsets.reserve(SourceMgr.sloc_entry_size() - 1 - BaseSLocID);
+ for (unsigned I = BaseSLocID + 1, N = SourceMgr.sloc_entry_size();
+ I != N; ++I) {
+ // Get this source location entry.
+ const SrcMgr::SLocEntry *SLoc = &SourceMgr.getSLocEntry(I);
+
+ // Record the offset of this source-location entry.
+ SLocEntryOffsets.push_back(Stream.GetCurrentBitNo());
+
+ // Figure out which record code to use.
+ unsigned Code;
+ if (SLoc->isFile()) {
+ if (SLoc->getFile().getContentCache()->Entry)
+ Code = pch::SM_SLOC_FILE_ENTRY;
+ else
+ Code = pch::SM_SLOC_BUFFER_ENTRY;
+ } else
+ Code = pch::SM_SLOC_INSTANTIATION_ENTRY;
+ Record.clear();
+ Record.push_back(Code);
+
+ Record.push_back(SLoc->getOffset());
+ if (SLoc->isFile()) {
+ const SrcMgr::FileInfo &File = SLoc->getFile();
+ Record.push_back(File.getIncludeLoc().getRawEncoding());
+ Record.push_back(File.getFileCharacteristic()); // FIXME: stable encoding
+ Record.push_back(File.hasLineDirectives());
+
+ const SrcMgr::ContentCache *Content = File.getContentCache();
+ if (Content->Entry) {
+ // The source location entry is a file. The blob associated
+ // with this entry is the file name.
+
+ // Emit size/modification time for this file.
+ Record.push_back(Content->Entry->getSize());
+ Record.push_back(Content->Entry->getModificationTime());
+
+ // Emit header-search information associated with this file.
+ HeaderFileInfo HFI;
+ HeaderSearch &HS = PP.getHeaderSearchInfo();
+ if (Content->Entry->getUID() < HS.header_file_size())
+ HFI = HS.header_file_begin()[Content->Entry->getUID()];
+ Record.push_back(HFI.isImport);
+ Record.push_back(HFI.DirInfo);
+ Record.push_back(HFI.NumIncludes);
+ AddIdentifierRef(HFI.ControllingMacro, Record);
+
+ // Turn the file name into an absolute path, if it isn't already.
+ const char *Filename = Content->Entry->getName();
+ llvm::sys::Path FilePath(Filename, strlen(Filename));
+ FilePath.makeAbsolute();
+ Filename = FilePath.c_str();
+
+ Filename = adjustFilenameForRelocatablePCH(Filename, isysroot);
+ Stream.EmitRecordWithBlob(SLocFileAbbrv, Record, Filename);
+
+ // FIXME: For now, preload all file source locations, so that
+ // we get the appropriate File entries in the reader. This is
+ // a temporary measure.
+ PreloadSLocs.push_back(BaseSLocID + SLocEntryOffsets.size());
+ } else {
+ // The source location entry is a buffer. The blob associated
+ // with this entry contains the contents of the buffer.
+
+ // We add one to the size so that we capture the trailing NULL
+ // that is required by llvm::MemoryBuffer::getMemBuffer (on
+ // the reader side).
+ const llvm::MemoryBuffer *Buffer
+ = Content->getBuffer(PP.getDiagnostics(), PP.getSourceManager());
+ const char *Name = Buffer->getBufferIdentifier();
+ Stream.EmitRecordWithBlob(SLocBufferAbbrv, Record,
+ llvm::StringRef(Name, strlen(Name) + 1));
+ Record.clear();
+ Record.push_back(pch::SM_SLOC_BUFFER_BLOB);
+ Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record,
+ llvm::StringRef(Buffer->getBufferStart(),
+ Buffer->getBufferSize() + 1));
+
+ if (strcmp(Name, "<built-in>") == 0)
+ PreloadSLocs.push_back(BaseSLocID + SLocEntryOffsets.size());
+ }
+ } else {
+ // The source location entry is an instantiation.
+ const SrcMgr::InstantiationInfo &Inst = SLoc->getInstantiation();
+ Record.push_back(Inst.getSpellingLoc().getRawEncoding());
+ Record.push_back(Inst.getInstantiationLocStart().getRawEncoding());
+ Record.push_back(Inst.getInstantiationLocEnd().getRawEncoding());
+
+ // Compute the token length for this macro expansion.
+ unsigned NextOffset = SourceMgr.getNextOffset();
+ if (I + 1 != N)
+ NextOffset = SourceMgr.getSLocEntry(I + 1).getOffset();
+ Record.push_back(NextOffset - SLoc->getOffset() - 1);
+ Stream.EmitRecordWithAbbrev(SLocInstantiationAbbrv, Record);
+ }
+ }
+
+ Stream.ExitBlock();
+
+ if (SLocEntryOffsets.empty())
+ return;
+
+ // Write the source-location offsets table into the PCH block. This
+ // table is used for lazily loading source-location information.
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::SOURCE_LOCATION_OFFSETS));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // # of slocs
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // next offset
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets
+ unsigned SLocOffsetsAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ Record.clear();
+ Record.push_back(pch::SOURCE_LOCATION_OFFSETS);
+ Record.push_back(SLocEntryOffsets.size());
+ Record.push_back(SourceMgr.getNextOffset());
+ Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record,
+ (const char *)data(SLocEntryOffsets),
+ SLocEntryOffsets.size()*sizeof(SLocEntryOffsets[0]));
+
+ // Write the source location entry preloads array, telling the PCH
+ // reader which source locations entries it should load eagerly.
+ Stream.EmitRecord(pch::SOURCE_LOCATION_PRELOADS, PreloadSLocs);
+}
+
+//===----------------------------------------------------------------------===//
+// Preprocessor Serialization
+//===----------------------------------------------------------------------===//
+
+/// \brief Writes the block containing the serialized form of the
+/// preprocessor.
+///
+void PCHWriter::WritePreprocessor(const Preprocessor &PP) {
+ RecordData Record;
+
+ // If the preprocessor __COUNTER__ value has been bumped, remember it.
+ if (PP.getCounterValue() != 0) {
+ Record.push_back(PP.getCounterValue());
+ Stream.EmitRecord(pch::PP_COUNTER_VALUE, Record);
+ Record.clear();
+ }
+
+ // Enter the preprocessor block.
+ Stream.EnterSubblock(pch::PREPROCESSOR_BLOCK_ID, 2);
+
+ // If the PCH file contains __DATE__ or __TIME__ emit a warning about this.
+ // FIXME: use diagnostics subsystem for localization etc.
+ if (PP.SawDateOrTime())
+ fprintf(stderr, "warning: precompiled header used __DATE__ or __TIME__.\n");
+
+ // Loop over all the macro definitions that are live at the end of the file,
+ // emitting each to the PP section.
+ PreprocessingRecord *PPRec = PP.getPreprocessingRecord();
+ for (Preprocessor::macro_iterator I = PP.macro_begin(), E = PP.macro_end();
+ I != E; ++I) {
+ // FIXME: This emits macros in hash table order, we should do it in a stable
+ // order so that output is reproducible.
+ MacroInfo *MI = I->second;
+
+ // Don't emit builtin macros like __LINE__ to the PCH file unless they have
+ // been redefined by the header (in which case they are not isBuiltinMacro).
+ // Also skip macros from a PCH file if we're chaining.
+ if (MI->isBuiltinMacro() || (Chain && MI->isFromPCH()))
+ continue;
+
+ AddIdentifierRef(I->first, Record);
+ MacroOffsets[I->first] = Stream.GetCurrentBitNo();
+ Record.push_back(MI->getDefinitionLoc().getRawEncoding());
+ Record.push_back(MI->isUsed());
+
+ unsigned Code;
+ if (MI->isObjectLike()) {
+ Code = pch::PP_MACRO_OBJECT_LIKE;
+ } else {
+ Code = pch::PP_MACRO_FUNCTION_LIKE;
+
+ Record.push_back(MI->isC99Varargs());
+ Record.push_back(MI->isGNUVarargs());
+ Record.push_back(MI->getNumArgs());
+ for (MacroInfo::arg_iterator I = MI->arg_begin(), E = MI->arg_end();
+ I != E; ++I)
+ AddIdentifierRef(*I, Record);
+ }
+
+ // If we have a detailed preprocessing record, record the macro definition
+ // ID that corresponds to this macro.
+ if (PPRec)
+ Record.push_back(getMacroDefinitionID(PPRec->findMacroDefinition(MI)));
+
+ Stream.EmitRecord(Code, Record);
+ Record.clear();
+
+ // Emit the tokens array.
+ for (unsigned TokNo = 0, e = MI->getNumTokens(); TokNo != e; ++TokNo) {
+ // Note that we know that the preprocessor does not have any annotation
+ // tokens in it because they are created by the parser, and thus can't be
+ // in a macro definition.
+ const Token &Tok = MI->getReplacementToken(TokNo);
+
+ Record.push_back(Tok.getLocation().getRawEncoding());
+ Record.push_back(Tok.getLength());
+
+ // FIXME: When reading literal tokens, reconstruct the literal pointer if
+ // it is needed.
+ AddIdentifierRef(Tok.getIdentifierInfo(), Record);
+
+ // FIXME: Should translate token kind to a stable encoding.
+ Record.push_back(Tok.getKind());
+ // FIXME: Should translate token flags to a stable encoding.
+ Record.push_back(Tok.getFlags());
+
+ Stream.EmitRecord(pch::PP_TOKEN, Record);
+ Record.clear();
+ }
+ ++NumMacros;
+ }
+
+ // If the preprocessor has a preprocessing record, emit it.
+ unsigned NumPreprocessingRecords = 0;
+ if (PPRec) {
+ for (PreprocessingRecord::iterator E = PPRec->begin(), EEnd = PPRec->end();
+ E != EEnd; ++E) {
+ Record.clear();
+
+ if (MacroInstantiation *MI = dyn_cast<MacroInstantiation>(*E)) {
+ Record.push_back(NumPreprocessingRecords++);
+ AddSourceLocation(MI->getSourceRange().getBegin(), Record);
+ AddSourceLocation(MI->getSourceRange().getEnd(), Record);
+ AddIdentifierRef(MI->getName(), Record);
+ Record.push_back(getMacroDefinitionID(MI->getDefinition()));
+ Stream.EmitRecord(pch::PP_MACRO_INSTANTIATION, Record);
+ continue;
+ }
+
+ if (MacroDefinition *MD = dyn_cast<MacroDefinition>(*E)) {
+ // Record this macro definition's location.
+ pch::IdentID ID = getMacroDefinitionID(MD);
+ if (ID != MacroDefinitionOffsets.size()) {
+ if (ID > MacroDefinitionOffsets.size())
+ MacroDefinitionOffsets.resize(ID + 1);
+
+ MacroDefinitionOffsets[ID] = Stream.GetCurrentBitNo();
+ } else
+ MacroDefinitionOffsets.push_back(Stream.GetCurrentBitNo());
+
+ Record.push_back(NumPreprocessingRecords++);
+ Record.push_back(ID);
+ AddSourceLocation(MD->getSourceRange().getBegin(), Record);
+ AddSourceLocation(MD->getSourceRange().getEnd(), Record);
+ AddIdentifierRef(MD->getName(), Record);
+ AddSourceLocation(MD->getLocation(), Record);
+ Stream.EmitRecord(pch::PP_MACRO_DEFINITION, Record);
+ continue;
+ }
+ }
+ }
+
+ Stream.ExitBlock();
+
+ // Write the offsets table for the preprocessing record.
+ if (NumPreprocessingRecords > 0) {
+ // Write the offsets table for identifier IDs.
+ using namespace llvm;
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::MACRO_DEFINITION_OFFSETS));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of records
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of macro defs
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned MacroDefOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ Record.clear();
+ Record.push_back(pch::MACRO_DEFINITION_OFFSETS);
+ Record.push_back(NumPreprocessingRecords);
+ Record.push_back(MacroDefinitionOffsets.size());
+ Stream.EmitRecordWithBlob(MacroDefOffsetAbbrev, Record,
+ (const char *)data(MacroDefinitionOffsets),
+ MacroDefinitionOffsets.size() * sizeof(uint32_t));
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// Type Serialization
+//===----------------------------------------------------------------------===//
+
+/// \brief Write the representation of a type to the PCH stream.
+void PCHWriter::WriteType(QualType T) {
+ pch::TypeID &ID = TypeIDs[T];
+ if (ID == 0) // we haven't seen this type before.
+ ID = NextTypeID++;
+
+ // Record the offset for this type.
+ unsigned Index = ID - FirstTypeID;
+ if (TypeOffsets.size() == Index)
+ TypeOffsets.push_back(Stream.GetCurrentBitNo());
+ else if (TypeOffsets.size() < Index) {
+ TypeOffsets.resize(Index + 1);
+ TypeOffsets[Index] = Stream.GetCurrentBitNo();
+ }
+
+ RecordData Record;
+
+ // Emit the type's representation.
+ PCHTypeWriter W(*this, Record);
+
+ if (T.hasLocalNonFastQualifiers()) {
+ Qualifiers Qs = T.getLocalQualifiers();
+ AddTypeRef(T.getLocalUnqualifiedType(), Record);
+ Record.push_back(Qs.getAsOpaqueValue());
+ W.Code = pch::TYPE_EXT_QUAL;
+ } else {
+ switch (T->getTypeClass()) {
+ // For all of the concrete, non-dependent types, call the
+ // appropriate visitor function.
+#define TYPE(Class, Base) \
+ case Type::Class: W.Visit##Class##Type(cast<Class##Type>(T)); break;
+#define ABSTRACT_TYPE(Class, Base)
+#include "clang/AST/TypeNodes.def"
+ }
+ }
+
+ // Emit the serialized record.
+ Stream.EmitRecord(W.Code, Record);
+
+ // Flush any expressions that were written as part of this type.
+ FlushStmts();
+}
+
+//===----------------------------------------------------------------------===//
+// Declaration Serialization
+//===----------------------------------------------------------------------===//
+
+/// \brief Write the block containing all of the declaration IDs
+/// lexically declared within the given DeclContext.
+///
+/// \returns the offset of the DECL_CONTEXT_LEXICAL block within the
+/// bistream, or 0 if no block was written.
+uint64_t PCHWriter::WriteDeclContextLexicalBlock(ASTContext &Context,
+ DeclContext *DC) {
+ if (DC->decls_empty())
+ return 0;
+
+ uint64_t Offset = Stream.GetCurrentBitNo();
+ RecordData Record;
+ Record.push_back(pch::DECL_CONTEXT_LEXICAL);
+ llvm::SmallVector<pch::DeclID, 64> Decls;
+ for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end();
+ D != DEnd; ++D)
+ Decls.push_back(GetDeclRef(*D));
+
+ ++NumLexicalDeclContexts;
+ Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record,
+ reinterpret_cast<char*>(Decls.data()), Decls.size() * sizeof(pch::DeclID));
+ return Offset;
+}
+
+/// \brief Write the block containing all of the declaration IDs
+/// visible from the given DeclContext.
+///
+/// \returns the offset of the DECL_CONTEXT_VISIBLE block within the
+/// bistream, or 0 if no block was written.
+uint64_t PCHWriter::WriteDeclContextVisibleBlock(ASTContext &Context,
+ DeclContext *DC) {
+ if (DC->getPrimaryContext() != DC)
+ return 0;
+
+ // Since there is no name lookup into functions or methods, don't bother to
+ // build a visible-declarations table for these entities.
+ if (DC->isFunctionOrMethod())
+ return 0;
+
+ // If not in C++, we perform name lookup for the translation unit via the
+ // IdentifierInfo chains, don't bother to build a visible-declarations table.
+ // FIXME: In C++ we need the visible declarations in order to "see" the
+ // friend declarations, is there a way to do this without writing the table ?
+ if (DC->isTranslationUnit() && !Context.getLangOptions().CPlusPlus)
+ return 0;
+
+ // Force the DeclContext to build a its name-lookup table.
+ DC->lookup(DeclarationName());
+
+ // Serialize the contents of the mapping used for lookup. Note that,
+ // although we have two very different code paths, the serialized
+ // representation is the same for both cases: a declaration name,
+ // followed by a size, followed by references to the visible
+ // declarations that have that name.
+ uint64_t Offset = Stream.GetCurrentBitNo();
+ RecordData Record;
+ StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(DC->getLookupPtr());
+ if (!Map)
+ return 0;
+
+ for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end();
+ D != DEnd; ++D) {
+ AddDeclarationName(D->first, Record);
+ DeclContext::lookup_result Result = D->second.getLookupResult(Context);
+ Record.push_back(Result.second - Result.first);
+ for (; Result.first != Result.second; ++Result.first)
+ AddDeclRef(*Result.first, Record);
+ }
+
+ if (Record.size() == 0)
+ return 0;
+
+ Stream.EmitRecord(pch::DECL_CONTEXT_VISIBLE, Record);
+ ++NumVisibleDeclContexts;
+ return Offset;
+}
+
+void PCHWriter::WriteTypeDeclOffsets() {
+ using namespace llvm;
+ RecordData Record;
+
+ // Write the type offsets array
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::TYPE_OFFSET));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of types
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // types block
+ unsigned TypeOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
+ Record.clear();
+ Record.push_back(pch::TYPE_OFFSET);
+ Record.push_back(TypeOffsets.size());
+ Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record,
+ (const char *)data(TypeOffsets),
+ TypeOffsets.size() * sizeof(TypeOffsets[0]));
+
+ // Write the declaration offsets array
+ Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::DECL_OFFSET));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of declarations
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // declarations block
+ unsigned DeclOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
+ Record.clear();
+ Record.push_back(pch::DECL_OFFSET);
+ Record.push_back(DeclOffsets.size());
+ Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record,
+ (const char *)data(DeclOffsets),
+ DeclOffsets.size() * sizeof(DeclOffsets[0]));
+}
+
+//===----------------------------------------------------------------------===//
+// Global Method Pool and Selector Serialization
+//===----------------------------------------------------------------------===//
+
+namespace {
+// Trait used for the on-disk hash table used in the method pool.
+class PCHMethodPoolTrait {
+ PCHWriter &Writer;
+
+public:
+ typedef Selector key_type;
+ typedef key_type key_type_ref;
+
+ struct data_type {
+ pch::SelectorID ID;
+ ObjCMethodList Instance, Factory;
+ };
+ typedef const data_type& data_type_ref;
+
+ explicit PCHMethodPoolTrait(PCHWriter &Writer) : Writer(Writer) { }
+
+ static unsigned ComputeHash(Selector Sel) {
+ unsigned N = Sel.getNumArgs();
+ if (N == 0)
+ ++N;
+ unsigned R = 5381;
+ for (unsigned I = 0; I != N; ++I)
+ if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(I))
+ R = llvm::HashString(II->getName(), R);
+ return R;
+ }
+
+ std::pair<unsigned,unsigned>
+ EmitKeyDataLength(llvm::raw_ostream& Out, Selector Sel,
+ data_type_ref Methods) {
+ unsigned KeyLen = 2 + (Sel.getNumArgs()? Sel.getNumArgs() * 4 : 4);
+ clang::io::Emit16(Out, KeyLen);
+ unsigned DataLen = 4 + 2 + 2; // 2 bytes for each of the method counts
+ for (const ObjCMethodList *Method = &Methods.Instance; Method;
+ Method = Method->Next)
+ if (Method->Method)
+ DataLen += 4;
+ for (const ObjCMethodList *Method = &Methods.Factory; Method;
+ Method = Method->Next)
+ if (Method->Method)
+ DataLen += 4;
+ clang::io::Emit16(Out, DataLen);
+ return std::make_pair(KeyLen, DataLen);
+ }
+
+ void EmitKey(llvm::raw_ostream& Out, Selector Sel, unsigned) {
+ uint64_t Start = Out.tell();
+ assert((Start >> 32) == 0 && "Selector key offset too large");
+ Writer.SetSelectorOffset(Sel, Start);
+ unsigned N = Sel.getNumArgs();
+ clang::io::Emit16(Out, N);
+ if (N == 0)
+ N = 1;
+ for (unsigned I = 0; I != N; ++I)
+ clang::io::Emit32(Out,
+ Writer.getIdentifierRef(Sel.getIdentifierInfoForSlot(I)));
+ }
+
+ void EmitData(llvm::raw_ostream& Out, key_type_ref,
+ data_type_ref Methods, unsigned DataLen) {
+ uint64_t Start = Out.tell(); (void)Start;
+ clang::io::Emit32(Out, Methods.ID);
+ unsigned NumInstanceMethods = 0;
+ for (const ObjCMethodList *Method = &Methods.Instance; Method;
+ Method = Method->Next)
+ if (Method->Method)
+ ++NumInstanceMethods;
+
+ unsigned NumFactoryMethods = 0;
+ for (const ObjCMethodList *Method = &Methods.Factory; Method;
+ Method = Method->Next)
+ if (Method->Method)
+ ++NumFactoryMethods;
+
+ clang::io::Emit16(Out, NumInstanceMethods);
+ clang::io::Emit16(Out, NumFactoryMethods);
+ for (const ObjCMethodList *Method = &Methods.Instance; Method;
+ Method = Method->Next)
+ if (Method->Method)
+ clang::io::Emit32(Out, Writer.getDeclID(Method->Method));
+ for (const ObjCMethodList *Method = &Methods.Factory; Method;
+ Method = Method->Next)
+ if (Method->Method)
+ clang::io::Emit32(Out, Writer.getDeclID(Method->Method));
+
+ assert(Out.tell() - Start == DataLen && "Data length is wrong");
+ }
+};
+} // end anonymous namespace
+
+/// \brief Write ObjC data: selectors and the method pool.
+///
+/// The method pool contains both instance and factory methods, stored
+/// in an on-disk hash table indexed by the selector. The hash table also
+/// contains an empty entry for every other selector known to Sema.
+void PCHWriter::WriteSelectors(Sema &SemaRef) {
+ using namespace llvm;
+
+ // Do we have to do anything at all?
+ if (SemaRef.MethodPool.empty() && SelectorIDs.empty())
+ return;
+ unsigned NumTableEntries = 0;
+ // Create and write out the blob that contains selectors and the method pool.
+ {
+ OnDiskChainedHashTableGenerator<PCHMethodPoolTrait> Generator;
+
+ // Create the on-disk hash table representation. We walk through every
+ // selector we've seen and look it up in the method pool.
+ SelectorOffsets.resize(NextSelectorID - FirstSelectorID);
+ for (llvm::DenseMap<Selector, pch::SelectorID>::iterator
+ I = SelectorIDs.begin(), E = SelectorIDs.end();
+ I != E; ++I) {
+ Selector S = I->first;
+ Sema::GlobalMethodPool::iterator F = SemaRef.MethodPool.find(S);
+ PCHMethodPoolTrait::data_type Data = {
+ I->second,
+ ObjCMethodList(),
+ ObjCMethodList()
+ };
+ if (F != SemaRef.MethodPool.end()) {
+ Data.Instance = F->second.first;
+ Data.Factory = F->second.second;
+ }
+ // Only write this selector if it's not in an existing PCH or something
+ // changed.
+ if (Chain && I->second < FirstSelectorID) {
+ // Selector already exists. Did it change?
+ bool changed = false;
+ for (ObjCMethodList *M = &Data.Instance; !changed && M && M->Method;
+ M = M->Next) {
+ if (M->Method->getPCHLevel() == 0)
+ changed = true;
+ }
+ for (ObjCMethodList *M = &Data.Factory; !changed && M && M->Method;
+ M = M->Next) {
+ if (M->Method->getPCHLevel() == 0)
+ changed = true;
+ }
+ if (!changed)
+ continue;
+ } else if (Data.Instance.Method || Data.Factory.Method) {
+ // A new method pool entry.
+ ++NumTableEntries;
+ }
+ Generator.insert(S, Data);
+ }
+
+ // Create the on-disk hash table in a buffer.
+ llvm::SmallString<4096> MethodPool;
+ uint32_t BucketOffset;
+ {
+ PCHMethodPoolTrait Trait(*this);
+ llvm::raw_svector_ostream Out(MethodPool);
+ // Make sure that no bucket is at offset 0
+ clang::io::Emit32(Out, 0);
+ BucketOffset = Generator.Emit(Out, Trait);
+ }
+
+ // Create a blob abbreviation
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::METHOD_POOL));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned MethodPoolAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ // Write the method pool
+ RecordData Record;
+ Record.push_back(pch::METHOD_POOL);
+ Record.push_back(BucketOffset);
+ Record.push_back(NumTableEntries);
+ Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool.str());
+
+ // Create a blob abbreviation for the selector table offsets.
+ Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::SELECTOR_OFFSETS));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // index
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned SelectorOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ // Write the selector offsets table.
+ Record.clear();
+ Record.push_back(pch::SELECTOR_OFFSETS);
+ Record.push_back(SelectorOffsets.size());
+ Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
+ (const char *)data(SelectorOffsets),
+ SelectorOffsets.size() * 4);
+ }
+}
+
+/// \brief Write the selectors referenced in @selector expression into PCH file.
+void PCHWriter::WriteReferencedSelectorsPool(Sema &SemaRef) {
+ using namespace llvm;
+ if (SemaRef.ReferencedSelectors.empty())
+ return;
+
+ RecordData Record;
+
+ // Note: this writes out all references even for a dependent PCH. But it is
+ // very tricky to fix, and given that @selector shouldn't really appear in
+ // headers, probably not worth it. It's not a correctness issue.
+ for (DenseMap<Selector, SourceLocation>::iterator S =
+ SemaRef.ReferencedSelectors.begin(),
+ E = SemaRef.ReferencedSelectors.end(); S != E; ++S) {
+ Selector Sel = (*S).first;
+ SourceLocation Loc = (*S).second;
+ AddSelectorRef(Sel, Record);
+ AddSourceLocation(Loc, Record);
+ }
+ Stream.EmitRecord(pch::REFERENCED_SELECTOR_POOL, Record);
+}
+
+//===----------------------------------------------------------------------===//
+// Identifier Table Serialization
+//===----------------------------------------------------------------------===//
+
+namespace {
+class PCHIdentifierTableTrait {
+ PCHWriter &Writer;
+ Preprocessor &PP;
+
+ /// \brief Determines whether this is an "interesting" identifier
+ /// that needs a full IdentifierInfo structure written into the hash
+ /// table.
+ static bool isInterestingIdentifier(const IdentifierInfo *II) {
+ return II->isPoisoned() ||
+ II->isExtensionToken() ||
+ II->hasMacroDefinition() ||
+ II->getObjCOrBuiltinID() ||
+ II->getFETokenInfo<void>();
+ }
+
+public:
+ typedef const IdentifierInfo* key_type;
+ typedef key_type key_type_ref;
+
+ typedef pch::IdentID data_type;
+ typedef data_type data_type_ref;
+
+ PCHIdentifierTableTrait(PCHWriter &Writer, Preprocessor &PP)
+ : Writer(Writer), PP(PP) { }
+
+ static unsigned ComputeHash(const IdentifierInfo* II) {
+ return llvm::HashString(II->getName());
+ }
+
+ std::pair<unsigned,unsigned>
+ EmitKeyDataLength(llvm::raw_ostream& Out, const IdentifierInfo* II,
+ pch::IdentID ID) {
+ unsigned KeyLen = II->getLength() + 1;
+ unsigned DataLen = 4; // 4 bytes for the persistent ID << 1
+ if (isInterestingIdentifier(II)) {
+ DataLen += 2; // 2 bytes for builtin ID, flags
+ if (II->hasMacroDefinition() &&
+ !PP.getMacroInfo(const_cast<IdentifierInfo *>(II))->isBuiltinMacro())
+ DataLen += 4;
+ for (IdentifierResolver::iterator D = IdentifierResolver::begin(II),
+ DEnd = IdentifierResolver::end();
+ D != DEnd; ++D)
+ DataLen += sizeof(pch::DeclID);
+ }
+ clang::io::Emit16(Out, DataLen);
+ // We emit the key length after the data length so that every
+ // string is preceded by a 16-bit length. This matches the PTH
+ // format for storing identifiers.
+ clang::io::Emit16(Out, KeyLen);
+ return std::make_pair(KeyLen, DataLen);
+ }
+
+ void EmitKey(llvm::raw_ostream& Out, const IdentifierInfo* II,
+ unsigned KeyLen) {
+ // Record the location of the key data. This is used when generating
+ // the mapping from persistent IDs to strings.
+ Writer.SetIdentifierOffset(II, Out.tell());
+ Out.write(II->getNameStart(), KeyLen);
+ }
+
+ void EmitData(llvm::raw_ostream& Out, const IdentifierInfo* II,
+ pch::IdentID ID, unsigned) {
+ if (!isInterestingIdentifier(II)) {
+ clang::io::Emit32(Out, ID << 1);
+ return;
+ }
+
+ clang::io::Emit32(Out, (ID << 1) | 0x01);
+ uint32_t Bits = 0;
+ bool hasMacroDefinition =
+ II->hasMacroDefinition() &&
+ !PP.getMacroInfo(const_cast<IdentifierInfo *>(II))->isBuiltinMacro();
+ Bits = (uint32_t)II->getObjCOrBuiltinID();
+ Bits = (Bits << 1) | unsigned(hasMacroDefinition);
+ Bits = (Bits << 1) | unsigned(II->isExtensionToken());
+ Bits = (Bits << 1) | unsigned(II->isPoisoned());
+ Bits = (Bits << 1) | unsigned(II->hasRevertedTokenIDToIdentifier());
+ Bits = (Bits << 1) | unsigned(II->isCPlusPlusOperatorKeyword());
+ clang::io::Emit16(Out, Bits);
+
+ if (hasMacroDefinition)
+ clang::io::Emit32(Out, Writer.getMacroOffset(II));
+
+ // Emit the declaration IDs in reverse order, because the
+ // IdentifierResolver provides the declarations as they would be
+ // visible (e.g., the function "stat" would come before the struct
+ // "stat"), but IdentifierResolver::AddDeclToIdentifierChain()
+ // adds declarations to the end of the list (so we need to see the
+ // struct "status" before the function "status").
+ // Only emit declarations that aren't from a chained PCH, though.
+ llvm::SmallVector<Decl *, 16> Decls(IdentifierResolver::begin(II),
+ IdentifierResolver::end());
+ for (llvm::SmallVector<Decl *, 16>::reverse_iterator D = Decls.rbegin(),
+ DEnd = Decls.rend();
+ D != DEnd; ++D)
+ clang::io::Emit32(Out, Writer.getDeclID(*D));
+ }
+};
+} // end anonymous namespace
+
+/// \brief Write the identifier table into the PCH file.
+///
+/// The identifier table consists of a blob containing string data
+/// (the actual identifiers themselves) and a separate "offsets" index
+/// that maps identifier IDs to locations within the blob.
+void PCHWriter::WriteIdentifierTable(Preprocessor &PP) {
+ using namespace llvm;
+
+ // Create and write out the blob that contains the identifier
+ // strings.
+ {
+ OnDiskChainedHashTableGenerator<PCHIdentifierTableTrait> Generator;
+
+ // Look for any identifiers that were named while processing the
+ // headers, but are otherwise not needed. We add these to the hash
+ // table to enable checking of the predefines buffer in the case
+ // where the user adds new macro definitions when building the PCH
+ // file.
+ for (IdentifierTable::iterator ID = PP.getIdentifierTable().begin(),
+ IDEnd = PP.getIdentifierTable().end();
+ ID != IDEnd; ++ID)
+ getIdentifierRef(ID->second);
+
+ // Create the on-disk hash table representation. We only store offsets
+ // for identifiers that appear here for the first time.
+ IdentifierOffsets.resize(NextIdentID - FirstIdentID);
+ for (llvm::DenseMap<const IdentifierInfo *, pch::IdentID>::iterator
+ ID = IdentifierIDs.begin(), IDEnd = IdentifierIDs.end();
+ ID != IDEnd; ++ID) {
+ assert(ID->first && "NULL identifier in identifier table");
+ if (!Chain || !ID->first->isFromPCH())
+ Generator.insert(ID->first, ID->second);
+ }
+
+ // Create the on-disk hash table in a buffer.
+ llvm::SmallString<4096> IdentifierTable;
+ uint32_t BucketOffset;
+ {
+ PCHIdentifierTableTrait Trait(*this, PP);
+ llvm::raw_svector_ostream Out(IdentifierTable);
+ // Make sure that no bucket is at offset 0
+ clang::io::Emit32(Out, 0);
+ BucketOffset = Generator.Emit(Out, Trait);
+ }
+
+ // Create a blob abbreviation
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::IDENTIFIER_TABLE));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned IDTableAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ // Write the identifier table
+ RecordData Record;
+ Record.push_back(pch::IDENTIFIER_TABLE);
+ Record.push_back(BucketOffset);
+ Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable.str());
+ }
+
+ // Write the offsets table for identifier IDs.
+ BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
+ Abbrev->Add(BitCodeAbbrevOp(pch::IDENTIFIER_OFFSET));
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of identifiers
+ Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ unsigned IdentifierOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
+
+ RecordData Record;
+ Record.push_back(pch::IDENTIFIER_OFFSET);
+ Record.push_back(IdentifierOffsets.size());
+ Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record,
+ (const char *)data(IdentifierOffsets),
+ IdentifierOffsets.size() * sizeof(uint32_t));
+}
+
+//===----------------------------------------------------------------------===//
+// General Serialization Routines
+//===----------------------------------------------------------------------===//
+
+/// \brief Write a record containing the given attributes.
+void PCHWriter::WriteAttributeRecord(const Attr *Attr) {
+ RecordData Record;
+ for (; Attr; Attr = Attr->getNext()) {
+ Record.push_back(Attr->getKind()); // FIXME: stable encoding, target attrs
+ Record.push_back(Attr->isInherited());
+ switch (Attr->getKind()) {
+ default:
+ assert(0 && "Does not support PCH writing for this attribute yet!");
+ break;
+ case attr::Alias:
+ AddString(cast<AliasAttr>(Attr)->getAliasee(), Record);
+ break;
+
+ case attr::AlignMac68k:
+ break;
+
+ case attr::Aligned:
+ Record.push_back(cast<AlignedAttr>(Attr)->getAlignment());
+ break;
+
+ case attr::AlwaysInline:
+ break;
+
+ case attr::AnalyzerNoReturn:
+ break;
+
+ case attr::Annotate:
+ AddString(cast<AnnotateAttr>(Attr)->getAnnotation(), Record);
+ break;
+
+ case attr::AsmLabel:
+ AddString(cast<AsmLabelAttr>(Attr)->getLabel(), Record);
+ break;
+
+ case attr::BaseCheck:
+ break;
+
+ case attr::Blocks:
+ Record.push_back(cast<BlocksAttr>(Attr)->getType()); // FIXME: stable
+ break;
+
+ case attr::CDecl:
+ break;
+
+ case attr::Cleanup:
+ AddDeclRef(cast<CleanupAttr>(Attr)->getFunctionDecl(), Record);
+ break;
+
+ case attr::Const:
+ break;
+
+ case attr::Constructor:
+ Record.push_back(cast<ConstructorAttr>(Attr)->getPriority());
+ break;
+
+ case attr::DLLExport:
+ case attr::DLLImport:
+ case attr::Deprecated:
+ break;
+
+ case attr::Destructor:
+ Record.push_back(cast<DestructorAttr>(Attr)->getPriority());
+ break;
+
+ case attr::FastCall:
+ case attr::Final:
+ break;
+
+ case attr::Format: {
+ const FormatAttr *Format = cast<FormatAttr>(Attr);
+ AddString(Format->getType(), Record);
+ Record.push_back(Format->getFormatIdx());
+ Record.push_back(Format->getFirstArg());
+ break;
+ }
+
+ case attr::FormatArg: {
+ const FormatArgAttr *Format = cast<FormatArgAttr>(Attr);
+ Record.push_back(Format->getFormatIdx());
+ break;
+ }
+
+ case attr::Sentinel : {
+ const SentinelAttr *Sentinel = cast<SentinelAttr>(Attr);
+ Record.push_back(Sentinel->getSentinel());
+ Record.push_back(Sentinel->getNullPos());
+ break;
+ }
+
+ case attr::GNUInline:
+ case attr::Hiding:
+ case attr::IBAction:
+ case attr::IBOutlet:
+ case attr::Malloc:
+ case attr::NoDebug:
+ case attr::NoInline:
+ case attr::NoReturn:
+ case attr::NoThrow:
+ break;
+
+ case attr::IBOutletCollection: {
+ const IBOutletCollectionAttr *ICA = cast<IBOutletCollectionAttr>(Attr);
+ AddDeclRef(ICA->getClass(), Record);
+ break;
+ }
+
+ case attr::NonNull: {
+ const NonNullAttr *NonNull = cast<NonNullAttr>(Attr);
+ Record.push_back(NonNull->size());
+ Record.insert(Record.end(), NonNull->begin(), NonNull->end());
+ break;
+ }
+
+ case attr::CFReturnsNotRetained:
+ case attr::CFReturnsRetained:
+ case attr::NSReturnsNotRetained:
+ case attr::NSReturnsRetained:
+ case attr::ObjCException:
+ case attr::ObjCNSObject:
+ case attr::Overloadable:
+ case attr::Override:
+ break;
+
+ case attr::MaxFieldAlignment:
+ Record.push_back(cast<MaxFieldAlignmentAttr>(Attr)->getAlignment());
+ break;
+
+ case attr::Packed:
+ break;
+
+ case attr::Pure:
+ break;
+
+ case attr::Regparm:
+ Record.push_back(cast<RegparmAttr>(Attr)->getNumParams());
+ break;
+
+ case attr::ReqdWorkGroupSize:
+ Record.push_back(cast<ReqdWorkGroupSizeAttr>(Attr)->getXDim());
+ Record.push_back(cast<ReqdWorkGroupSizeAttr>(Attr)->getYDim());
+ Record.push_back(cast<ReqdWorkGroupSizeAttr>(Attr)->getZDim());
+ break;
+
+ case attr::Section:
+ AddString(cast<SectionAttr>(Attr)->getName(), Record);
+ break;
+
+ case attr::StdCall:
+ case attr::TransparentUnion:
+ case attr::Unavailable:
+ case attr::Unused:
+ case attr::Used:
+ break;
+
+ case attr::Visibility:
+ // FIXME: stable encoding
+ Record.push_back(cast<VisibilityAttr>(Attr)->getVisibility());
+ Record.push_back(cast<VisibilityAttr>(Attr)->isFromPragma());
+ break;
+
+ case attr::WarnUnusedResult:
+ case attr::Weak:
+ case attr::WeakRef:
+ case attr::WeakImport:
+ break;
+ }
+ }
+
+ Stream.EmitRecord(pch::DECL_ATTR, Record);
+}
+
+void PCHWriter::AddString(const std::string &Str, RecordData &Record) {
+ Record.push_back(Str.size());
+ Record.insert(Record.end(), Str.begin(), Str.end());
+}
+
+/// \brief Note that the identifier II occurs at the given offset
+/// within the identifier table.
+void PCHWriter::SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset) {
+ pch::IdentID ID = IdentifierIDs[II];
+ // Only store offsets new to this PCH file. Other identifier names are looked
+ // up earlier in the chain and thus don't need an offset.
+ if (ID >= FirstIdentID)
+ IdentifierOffsets[ID - FirstIdentID] = Offset;
+}
+
+/// \brief Note that the selector Sel occurs at the given offset
+/// within the method pool/selector table.
+void PCHWriter::SetSelectorOffset(Selector Sel, uint32_t Offset) {
+ unsigned ID = SelectorIDs[Sel];
+ assert(ID && "Unknown selector");
+ // Don't record offsets for selectors that are also available in a different
+ // file.
+ if (ID < FirstSelectorID)
+ return;
+ SelectorOffsets[ID - FirstSelectorID] = Offset;
+}
+
+PCHWriter::PCHWriter(llvm::BitstreamWriter &Stream)
+ : Stream(Stream), Chain(0), FirstDeclID(1), NextDeclID(FirstDeclID),
+ FirstTypeID(pch::NUM_PREDEF_TYPE_IDS), NextTypeID(FirstTypeID),
+ FirstIdentID(1), NextIdentID(FirstIdentID), FirstSelectorID(1),
+ NextSelectorID(FirstSelectorID), CollectedStmts(&StmtsToEmit),
+ NumStatements(0), NumMacros(0), NumLexicalDeclContexts(0),
+ NumVisibleDeclContexts(0) {
+}
+
+void PCHWriter::WritePCH(Sema &SemaRef, MemorizeStatCalls *StatCalls,
+ const char *isysroot) {
+ // Emit the file header.
+ Stream.Emit((unsigned)'C', 8);
+ Stream.Emit((unsigned)'P', 8);
+ Stream.Emit((unsigned)'C', 8);
+ Stream.Emit((unsigned)'H', 8);
+
+ WriteBlockInfoBlock();
+
+ if (Chain)
+ WritePCHChain(SemaRef, StatCalls, isysroot);
+ else
+ WritePCHCore(SemaRef, StatCalls, isysroot);
+}
+
+void PCHWriter::WritePCHCore(Sema &SemaRef, MemorizeStatCalls *StatCalls,
+ const char *isysroot) {
+ using namespace llvm;
+
+ ASTContext &Context = SemaRef.Context;
+ Preprocessor &PP = SemaRef.PP;
+
+ // The translation unit is the first declaration we'll emit.
+ DeclIDs[Context.getTranslationUnitDecl()] = 1;
+ ++NextDeclID;
+ DeclTypesToEmit.push(Context.getTranslationUnitDecl());
+
+ // Make sure that we emit IdentifierInfos (and any attached
+ // declarations) for builtins.
+ {
+ IdentifierTable &Table = PP.getIdentifierTable();
+ llvm::SmallVector<const char *, 32> BuiltinNames;
+ Context.BuiltinInfo.GetBuiltinNames(BuiltinNames,
+ Context.getLangOptions().NoBuiltin);
+ for (unsigned I = 0, N = BuiltinNames.size(); I != N; ++I)
+ getIdentifierRef(&Table.get(BuiltinNames[I]));
+ }
+
+ // Build a record containing all of the tentative definitions in this file, in
+ // TentativeDefinitions order. Generally, this record will be empty for
+ // headers.
+ RecordData TentativeDefinitions;
+ for (unsigned i = 0, e = SemaRef.TentativeDefinitions.size(); i != e; ++i) {
+ AddDeclRef(SemaRef.TentativeDefinitions[i], TentativeDefinitions);
+ }
+
+ // Build a record containing all of the file scoped decls in this file.
+ RecordData UnusedFileScopedDecls;
+ for (unsigned i=0, e = SemaRef.UnusedFileScopedDecls.size(); i !=e; ++i)
+ AddDeclRef(SemaRef.UnusedFileScopedDecls[i], UnusedFileScopedDecls);
+
+ RecordData WeakUndeclaredIdentifiers;
+ if (!SemaRef.WeakUndeclaredIdentifiers.empty()) {
+ WeakUndeclaredIdentifiers.push_back(
+ SemaRef.WeakUndeclaredIdentifiers.size());
+ for (llvm::DenseMap<IdentifierInfo*,Sema::WeakInfo>::iterator
+ I = SemaRef.WeakUndeclaredIdentifiers.begin(),
+ E = SemaRef.WeakUndeclaredIdentifiers.end(); I != E; ++I) {
+ AddIdentifierRef(I->first, WeakUndeclaredIdentifiers);
+ AddIdentifierRef(I->second.getAlias(), WeakUndeclaredIdentifiers);
+ AddSourceLocation(I->second.getLocation(), WeakUndeclaredIdentifiers);
+ WeakUndeclaredIdentifiers.push_back(I->second.getUsed());
+ }
+ }
+
+ // Build a record containing all of the locally-scoped external
+ // declarations in this header file. Generally, this record will be
+ // empty.
+ RecordData LocallyScopedExternalDecls;
+ // FIXME: This is filling in the PCH file in densemap order which is
+ // nondeterminstic!
+ for (llvm::DenseMap<DeclarationName, NamedDecl *>::iterator
+ TD = SemaRef.LocallyScopedExternalDecls.begin(),
+ TDEnd = SemaRef.LocallyScopedExternalDecls.end();
+ TD != TDEnd; ++TD)
+ AddDeclRef(TD->second, LocallyScopedExternalDecls);
+
+ // Build a record containing all of the ext_vector declarations.
+ RecordData ExtVectorDecls;
+ for (unsigned I = 0, N = SemaRef.ExtVectorDecls.size(); I != N; ++I)
+ AddDeclRef(SemaRef.ExtVectorDecls[I], ExtVectorDecls);
+
+ // Build a record containing all of the VTable uses information.
+ RecordData VTableUses;
+ if (!SemaRef.VTableUses.empty()) {
+ VTableUses.push_back(SemaRef.VTableUses.size());
+ for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
+ AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
+ AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
+ VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
+ }
+ }
+
+ // Build a record containing all of dynamic classes declarations.
+ RecordData DynamicClasses;
+ for (unsigned I = 0, N = SemaRef.DynamicClasses.size(); I != N; ++I)
+ AddDeclRef(SemaRef.DynamicClasses[I], DynamicClasses);
+
+ // Build a record containing all of pending implicit instantiations.
+ RecordData PendingImplicitInstantiations;
+ for (std::deque<Sema::PendingImplicitInstantiation>::iterator
+ I = SemaRef.PendingImplicitInstantiations.begin(),
+ N = SemaRef.PendingImplicitInstantiations.end(); I != N; ++I) {
+ AddDeclRef(I->first, PendingImplicitInstantiations);
+ AddSourceLocation(I->second, PendingImplicitInstantiations);
+ }
+ assert(SemaRef.PendingLocalImplicitInstantiations.empty() &&
+ "There are local ones at end of translation unit!");
+
+ // Build a record containing some declaration references.
+ RecordData SemaDeclRefs;
+ if (SemaRef.StdNamespace || SemaRef.StdBadAlloc) {
+ AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs);
+ AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs);
+ }
+
+ // Write the remaining PCH contents.
+ RecordData Record;
+ Stream.EnterSubblock(pch::PCH_BLOCK_ID, 5);
+ WriteMetadata(Context, isysroot);
+ WriteLanguageOptions(Context.getLangOptions());
+ if (StatCalls && !isysroot)
+ WriteStatCache(*StatCalls);
+ WriteSourceManagerBlock(Context.getSourceManager(), PP, isysroot);
+ // Write the record of special types.
+ Record.clear();
+
+ AddTypeRef(Context.getBuiltinVaListType(), Record);
+ AddTypeRef(Context.getObjCIdType(), Record);
+ AddTypeRef(Context.getObjCSelType(), Record);
+ AddTypeRef(Context.getObjCProtoType(), Record);
+ AddTypeRef(Context.getObjCClassType(), Record);
+ AddTypeRef(Context.getRawCFConstantStringType(), Record);
+ AddTypeRef(Context.getRawObjCFastEnumerationStateType(), Record);
+ AddTypeRef(Context.getFILEType(), Record);
+ AddTypeRef(Context.getjmp_bufType(), Record);
+ AddTypeRef(Context.getsigjmp_bufType(), Record);
+ AddTypeRef(Context.ObjCIdRedefinitionType, Record);
+ AddTypeRef(Context.ObjCClassRedefinitionType, Record);
+ AddTypeRef(Context.getRawBlockdescriptorType(), Record);
+ AddTypeRef(Context.getRawBlockdescriptorExtendedType(), Record);
+ AddTypeRef(Context.ObjCSelRedefinitionType, Record);
+ AddTypeRef(Context.getRawNSConstantStringType(), Record);
+ Record.push_back(Context.isInt128Installed());
+ Stream.EmitRecord(pch::SPECIAL_TYPES, Record);
+
+ // Keep writing types and declarations until all types and
+ // declarations have been written.
+ Stream.EnterSubblock(pch::DECLTYPES_BLOCK_ID, 3);
+ WriteDeclsBlockAbbrevs();
+ while (!DeclTypesToEmit.empty()) {
+ DeclOrType DOT = DeclTypesToEmit.front();
+ DeclTypesToEmit.pop();
+ if (DOT.isType())
+ WriteType(DOT.getType());
+ else
+ WriteDecl(Context, DOT.getDecl());
+ }
+ Stream.ExitBlock();
+
+ WritePreprocessor(PP);
+ WriteSelectors(SemaRef);
+ WriteReferencedSelectorsPool(SemaRef);
+ WriteIdentifierTable(PP);
+
+ WriteTypeDeclOffsets();
+
+ // Write the record containing external, unnamed definitions.
+ if (!ExternalDefinitions.empty())
+ Stream.EmitRecord(pch::EXTERNAL_DEFINITIONS, ExternalDefinitions);
+
+ // Write the record containing tentative definitions.
+ if (!TentativeDefinitions.empty())
+ Stream.EmitRecord(pch::TENTATIVE_DEFINITIONS, TentativeDefinitions);
+
+ // Write the record containing unused file scoped decls.
+ if (!UnusedFileScopedDecls.empty())
+ Stream.EmitRecord(pch::UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls);
+
+ // Write the record containing weak undeclared identifiers.
+ if (!WeakUndeclaredIdentifiers.empty())
+ Stream.EmitRecord(pch::WEAK_UNDECLARED_IDENTIFIERS,
+ WeakUndeclaredIdentifiers);
+
+ // Write the record containing locally-scoped external definitions.
+ if (!LocallyScopedExternalDecls.empty())
+ Stream.EmitRecord(pch::LOCALLY_SCOPED_EXTERNAL_DECLS,
+ LocallyScopedExternalDecls);
+
+ // Write the record containing ext_vector type names.
+ if (!ExtVectorDecls.empty())
+ Stream.EmitRecord(pch::EXT_VECTOR_DECLS, ExtVectorDecls);
+
+ // Write the record containing VTable uses information.
+ if (!VTableUses.empty())
+ Stream.EmitRecord(pch::VTABLE_USES, VTableUses);
+
+ // Write the record containing dynamic classes declarations.
+ if (!DynamicClasses.empty())
+ Stream.EmitRecord(pch::DYNAMIC_CLASSES, DynamicClasses);
+
+ // Write the record containing pending implicit instantiations.
+ if (!PendingImplicitInstantiations.empty())
+ Stream.EmitRecord(pch::PENDING_IMPLICIT_INSTANTIATIONS,
+ PendingImplicitInstantiations);
+
+ // Write the record containing declaration references of Sema.
+ if (!SemaDeclRefs.empty())
+ Stream.EmitRecord(pch::SEMA_DECL_REFS, SemaDeclRefs);
+
+ // Some simple statistics
+ Record.clear();
+ Record.push_back(NumStatements);
+ Record.push_back(NumMacros);
+ Record.push_back(NumLexicalDeclContexts);
+ Record.push_back(NumVisibleDeclContexts);
+ Stream.EmitRecord(pch::STATISTICS, Record);
+ Stream.ExitBlock();
+}
+
+void PCHWriter::WritePCHChain(Sema &SemaRef, MemorizeStatCalls *StatCalls,
+ const char *isysroot) {
+ using namespace llvm;
+
+ FirstDeclID += Chain->getTotalNumDecls();
+ FirstTypeID += Chain->getTotalNumTypes();
+ FirstIdentID += Chain->getTotalNumIdentifiers();
+ FirstSelectorID += Chain->getTotalNumSelectors();
+ NextDeclID = FirstDeclID;
+ NextTypeID = FirstTypeID;
+ NextIdentID = FirstIdentID;
+ NextSelectorID = FirstSelectorID;
+
+ ASTContext &Context = SemaRef.Context;
+ Preprocessor &PP = SemaRef.PP;
+
+ RecordData Record;
+ Stream.EnterSubblock(pch::PCH_BLOCK_ID, 5);
+ WriteMetadata(Context, isysroot);
+ if (StatCalls && !isysroot)
+ WriteStatCache(*StatCalls);
+ // FIXME: Source manager block should only write new stuff, which could be
+ // done by tracking the largest ID in the chain
+ WriteSourceManagerBlock(Context.getSourceManager(), PP, isysroot);
+
+ // The special types are in the chained PCH.
+
+ // We don't start with the translation unit, but with its decls that
+ // don't come from the other PCH.
+ const TranslationUnitDecl *TU = Context.getTranslationUnitDecl();
+ llvm::SmallVector<pch::DeclID, 64> NewGlobalDecls;
+ for (DeclContext::decl_iterator I = TU->noload_decls_begin(),
+ E = TU->noload_decls_end();
+ I != E; ++I) {
+ if ((*I)->getPCHLevel() == 0)
+ NewGlobalDecls.push_back(GetDeclRef(*I));
+ else if ((*I)->isChangedSinceDeserialization())
+ (void)GetDeclRef(*I); // Make sure it's written, but don't record it.
+ }
+ // We also need to write a lexical updates block for the TU.
+ llvm::BitCodeAbbrev *Abv = new llvm::BitCodeAbbrev();
+ Abv->Add(llvm::BitCodeAbbrevOp(pch::TU_UPDATE_LEXICAL));
+ Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
+ unsigned TuUpdateLexicalAbbrev = Stream.EmitAbbrev(Abv);
+ Record.clear();
+ Record.push_back(pch::TU_UPDATE_LEXICAL);
+ Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
+ reinterpret_cast<const char*>(NewGlobalDecls.data()),
+ NewGlobalDecls.size() * sizeof(pch::DeclID));
+
+ // Build a record containing all of the new tentative definitions in this
+ // file, in TentativeDefinitions order.
+ RecordData TentativeDefinitions;
+ for (unsigned i = 0, e = SemaRef.TentativeDefinitions.size(); i != e; ++i) {
+ if (SemaRef.TentativeDefinitions[i]->getPCHLevel() == 0)
+ AddDeclRef(SemaRef.TentativeDefinitions[i], TentativeDefinitions);
+ }
+
+ // Build a record containing all of the file scoped decls in this file.
+ RecordData UnusedFileScopedDecls;
+ for (unsigned i=0, e = SemaRef.UnusedFileScopedDecls.size(); i !=e; ++i) {
+ if (SemaRef.UnusedFileScopedDecls[i]->getPCHLevel() == 0)
+ AddDeclRef(SemaRef.UnusedFileScopedDecls[i], UnusedFileScopedDecls);
+ }
+
+ // We write the entire table, overwriting the tables from the chain.
+ RecordData WeakUndeclaredIdentifiers;
+ if (!SemaRef.WeakUndeclaredIdentifiers.empty()) {
+ WeakUndeclaredIdentifiers.push_back(
+ SemaRef.WeakUndeclaredIdentifiers.size());
+ for (llvm::DenseMap<IdentifierInfo*,Sema::WeakInfo>::iterator
+ I = SemaRef.WeakUndeclaredIdentifiers.begin(),
+ E = SemaRef.WeakUndeclaredIdentifiers.end(); I != E; ++I) {
+ AddIdentifierRef(I->first, WeakUndeclaredIdentifiers);
+ AddIdentifierRef(I->second.getAlias(), WeakUndeclaredIdentifiers);
+ AddSourceLocation(I->second.getLocation(), WeakUndeclaredIdentifiers);
+ WeakUndeclaredIdentifiers.push_back(I->second.getUsed());
+ }
+ }
+
+ // Build a record containing all of the locally-scoped external
+ // declarations in this header file. Generally, this record will be
+ // empty.
+ RecordData LocallyScopedExternalDecls;
+ // FIXME: This is filling in the PCH file in densemap order which is
+ // nondeterminstic!
+ for (llvm::DenseMap<DeclarationName, NamedDecl *>::iterator
+ TD = SemaRef.LocallyScopedExternalDecls.begin(),
+ TDEnd = SemaRef.LocallyScopedExternalDecls.end();
+ TD != TDEnd; ++TD) {
+ if (TD->second->getPCHLevel() == 0)
+ AddDeclRef(TD->second, LocallyScopedExternalDecls);
+ }
+
+ // Build a record containing all of the ext_vector declarations.
+ RecordData ExtVectorDecls;
+ for (unsigned I = 0, N = SemaRef.ExtVectorDecls.size(); I != N; ++I) {
+ if (SemaRef.ExtVectorDecls[I]->getPCHLevel() == 0)
+ AddDeclRef(SemaRef.ExtVectorDecls[I], ExtVectorDecls);
+ }
+
+ // Build a record containing all of the VTable uses information.
+ // We write everything here, because it's too hard to determine whether
+ // a use is new to this part.
+ RecordData VTableUses;
+ if (!SemaRef.VTableUses.empty()) {
+ VTableUses.push_back(SemaRef.VTableUses.size());
+ for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
+ AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
+ AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
+ VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
+ }
+ }
+
+ // Build a record containing all of dynamic classes declarations.
+ RecordData DynamicClasses;
+ for (unsigned I = 0, N = SemaRef.DynamicClasses.size(); I != N; ++I)
+ if (SemaRef.DynamicClasses[I]->getPCHLevel() == 0)
+ AddDeclRef(SemaRef.DynamicClasses[I], DynamicClasses);
+
+ // Build a record containing all of pending implicit instantiations.
+ RecordData PendingImplicitInstantiations;
+ for (std::deque<Sema::PendingImplicitInstantiation>::iterator
+ I = SemaRef.PendingImplicitInstantiations.begin(),
+ N = SemaRef.PendingImplicitInstantiations.end(); I != N; ++I) {
+ if (I->first->getPCHLevel() == 0) {
+ AddDeclRef(I->first, PendingImplicitInstantiations);
+ AddSourceLocation(I->second, PendingImplicitInstantiations);
+ }
+ }
+ assert(SemaRef.PendingLocalImplicitInstantiations.empty() &&
+ "There are local ones at end of translation unit!");
+
+ // Build a record containing some declaration references.
+ // It's not worth the effort to avoid duplication here.
+ RecordData SemaDeclRefs;
+ if (SemaRef.StdNamespace || SemaRef.StdBadAlloc) {
+ AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs);
+ AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs);
+ }
+
+ Stream.EnterSubblock(pch::DECLTYPES_BLOCK_ID, 3);
+ WriteDeclsBlockAbbrevs();
+ while (!DeclTypesToEmit.empty()) {
+ DeclOrType DOT = DeclTypesToEmit.front();
+ DeclTypesToEmit.pop();
+ if (DOT.isType())
+ WriteType(DOT.getType());
+ else
+ WriteDecl(Context, DOT.getDecl());
+ }
+ Stream.ExitBlock();
+
+ WritePreprocessor(PP);
+ WriteSelectors(SemaRef);
+ WriteReferencedSelectorsPool(SemaRef);
+ WriteIdentifierTable(PP);
+ WriteTypeDeclOffsets();
+
+ /// Build a record containing first declarations from a chained PCH and the
+ /// most recent declarations in this PCH that they point to.
+ RecordData FirstLatestDeclIDs;
+ for (FirstLatestDeclMap::iterator
+ I = FirstLatestDecls.begin(), E = FirstLatestDecls.end(); I != E; ++I) {
+ assert(I->first->getPCHLevel() > I->second->getPCHLevel() &&
+ "Expected first & second to be in different PCHs");
+ AddDeclRef(I->first, FirstLatestDeclIDs);
+ AddDeclRef(I->second, FirstLatestDeclIDs);
+ }
+ if (!FirstLatestDeclIDs.empty())
+ Stream.EmitRecord(pch::REDECLS_UPDATE_LATEST, FirstLatestDeclIDs);
+
+ // Write the record containing external, unnamed definitions.
+ if (!ExternalDefinitions.empty())
+ Stream.EmitRecord(pch::EXTERNAL_DEFINITIONS, ExternalDefinitions);
+
+ // Write the record containing tentative definitions.
+ if (!TentativeDefinitions.empty())
+ Stream.EmitRecord(pch::TENTATIVE_DEFINITIONS, TentativeDefinitions);
+
+ // Write the record containing unused file scoped decls.
+ if (!UnusedFileScopedDecls.empty())
+ Stream.EmitRecord(pch::UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls);
+
+ // Write the record containing weak undeclared identifiers.
+ if (!WeakUndeclaredIdentifiers.empty())
+ Stream.EmitRecord(pch::WEAK_UNDECLARED_IDENTIFIERS,
+ WeakUndeclaredIdentifiers);
+
+ // Write the record containing locally-scoped external definitions.
+ if (!LocallyScopedExternalDecls.empty())
+ Stream.EmitRecord(pch::LOCALLY_SCOPED_EXTERNAL_DECLS,
+ LocallyScopedExternalDecls);
+
+ // Write the record containing ext_vector type names.
+ if (!ExtVectorDecls.empty())
+ Stream.EmitRecord(pch::EXT_VECTOR_DECLS, ExtVectorDecls);
+
+ // Write the record containing VTable uses information.
+ if (!VTableUses.empty())
+ Stream.EmitRecord(pch::VTABLE_USES, VTableUses);
+
+ // Write the record containing dynamic classes declarations.
+ if (!DynamicClasses.empty())
+ Stream.EmitRecord(pch::DYNAMIC_CLASSES, DynamicClasses);
+
+ // Write the record containing pending implicit instantiations.
+ if (!PendingImplicitInstantiations.empty())
+ Stream.EmitRecord(pch::PENDING_IMPLICIT_INSTANTIATIONS,
+ PendingImplicitInstantiations);
+
+ // Write the record containing declaration references of Sema.
+ if (!SemaDeclRefs.empty())
+ Stream.EmitRecord(pch::SEMA_DECL_REFS, SemaDeclRefs);
+
+ Record.clear();
+ Record.push_back(NumStatements);
+ Record.push_back(NumMacros);
+ Record.push_back(NumLexicalDeclContexts);
+ Record.push_back(NumVisibleDeclContexts);
+ WriteDeclUpdateBlock();
+ Stream.EmitRecord(pch::STATISTICS, Record);
+ Stream.ExitBlock();
+}
+
+void PCHWriter::WriteDeclUpdateBlock() {
+ if (ReplacedDecls.empty())
+ return;
+
+ RecordData Record;
+ for (llvm::SmallVector<std::pair<pch::DeclID, uint64_t>, 16>::iterator
+ I = ReplacedDecls.begin(), E = ReplacedDecls.end(); I != E; ++I) {
+ Record.push_back(I->first);
+ Record.push_back(I->second);
+ }
+ Stream.EmitRecord(pch::DECL_REPLACEMENTS, Record);
+}
+
+void PCHWriter::AddSourceLocation(SourceLocation Loc, RecordData &Record) {
+ Record.push_back(Loc.getRawEncoding());
+}
+
+void PCHWriter::AddSourceRange(SourceRange Range, RecordData &Record) {
+ AddSourceLocation(Range.getBegin(), Record);
+ AddSourceLocation(Range.getEnd(), Record);
+}
+
+void PCHWriter::AddAPInt(const llvm::APInt &Value, RecordData &Record) {
+ Record.push_back(Value.getBitWidth());
+ unsigned N = Value.getNumWords();
+ const uint64_t* Words = Value.getRawData();
+ for (unsigned I = 0; I != N; ++I)
+ Record.push_back(Words[I]);
+}
+
+void PCHWriter::AddAPSInt(const llvm::APSInt &Value, RecordData &Record) {
+ Record.push_back(Value.isUnsigned());
+ AddAPInt(Value, Record);
+}
+
+void PCHWriter::AddAPFloat(const llvm::APFloat &Value, RecordData &Record) {
+ AddAPInt(Value.bitcastToAPInt(), Record);
+}
+
+void PCHWriter::AddIdentifierRef(const IdentifierInfo *II, RecordData &Record) {
+ Record.push_back(getIdentifierRef(II));
+}
+
+pch::IdentID PCHWriter::getIdentifierRef(const IdentifierInfo *II) {
+ if (II == 0)
+ return 0;
+
+ pch::IdentID &ID = IdentifierIDs[II];
+ if (ID == 0)
+ ID = NextIdentID++;
+ return ID;
+}
+
+pch::IdentID PCHWriter::getMacroDefinitionID(MacroDefinition *MD) {
+ if (MD == 0)
+ return 0;
+
+ pch::IdentID &ID = MacroDefinitions[MD];
+ if (ID == 0)
+ ID = MacroDefinitions.size();
+ return ID;
+}
+
+void PCHWriter::AddSelectorRef(const Selector SelRef, RecordData &Record) {
+ Record.push_back(getSelectorRef(SelRef));
+}
+
+pch::SelectorID PCHWriter::getSelectorRef(Selector Sel) {
+ if (Sel.getAsOpaquePtr() == 0) {
+ return 0;
+ }
+
+ pch::SelectorID &SID = SelectorIDs[Sel];
+ if (SID == 0 && Chain) {
+ // This might trigger a ReadSelector callback, which will set the ID for
+ // this selector.
+ Chain->LoadSelector(Sel);
+ }
+ if (SID == 0) {
+ SID = NextSelectorID++;
+ }
+ return SID;
+}
+
+void PCHWriter::AddCXXTemporary(const CXXTemporary *Temp, RecordData &Record) {
+ AddDeclRef(Temp->getDestructor(), Record);
+}
+
+void PCHWriter::AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
+ const TemplateArgumentLocInfo &Arg,
+ RecordData &Record) {
+ switch (Kind) {
+ case TemplateArgument::Expression:
+ AddStmt(Arg.getAsExpr());
+ break;
+ case TemplateArgument::Type:
+ AddTypeSourceInfo(Arg.getAsTypeSourceInfo(), Record);
+ break;
+ case TemplateArgument::Template:
+ AddSourceRange(Arg.getTemplateQualifierRange(), Record);
+ AddSourceLocation(Arg.getTemplateNameLoc(), Record);
+ break;
+ case TemplateArgument::Null:
+ case TemplateArgument::Integral:
+ case TemplateArgument::Declaration:
+ case TemplateArgument::Pack:
+ break;
+ }
+}
+
+void PCHWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg,
+ RecordData &Record) {
+ AddTemplateArgument(Arg.getArgument(), Record);
+
+ if (Arg.getArgument().getKind() == TemplateArgument::Expression) {
+ bool InfoHasSameExpr
+ = Arg.getArgument().getAsExpr() == Arg.getLocInfo().getAsExpr();
+ Record.push_back(InfoHasSameExpr);
+ if (InfoHasSameExpr)
+ return; // Avoid storing the same expr twice.
+ }
+ AddTemplateArgumentLocInfo(Arg.getArgument().getKind(), Arg.getLocInfo(),
+ Record);
+}
+
+void PCHWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo, RecordData &Record) {
+ if (TInfo == 0) {
+ AddTypeRef(QualType(), Record);
+ return;
+ }
+
+ AddTypeRef(TInfo->getType(), Record);
+ TypeLocWriter TLW(*this, Record);
+ for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc())
+ TLW.Visit(TL);
+}
+
+void PCHWriter::AddTypeRef(QualType T, RecordData &Record) {
+ if (T.isNull()) {
+ Record.push_back(pch::PREDEF_TYPE_NULL_ID);
+ return;
+ }
+
+ unsigned FastQuals = T.getLocalFastQualifiers();
+ T.removeFastQualifiers();
+
+ if (T.hasLocalNonFastQualifiers()) {
+ pch::TypeID &ID = TypeIDs[T];
+ if (ID == 0) {
+ // We haven't seen these qualifiers applied to this type before.
+ // Assign it a new ID. This is the only time we enqueue a
+ // qualified type, and it has no CV qualifiers.
+ ID = NextTypeID++;
+ DeclTypesToEmit.push(T);
+ }
+
+ // Encode the type qualifiers in the type reference.
+ Record.push_back((ID << Qualifiers::FastWidth) | FastQuals);
+ return;
+ }
+
+ assert(!T.hasLocalQualifiers());
+
+ if (const BuiltinType *BT = dyn_cast<BuiltinType>(T.getTypePtr())) {
+ pch::TypeID ID = 0;
+ switch (BT->getKind()) {
+ case BuiltinType::Void: ID = pch::PREDEF_TYPE_VOID_ID; break;
+ case BuiltinType::Bool: ID = pch::PREDEF_TYPE_BOOL_ID; break;
+ case BuiltinType::Char_U: ID = pch::PREDEF_TYPE_CHAR_U_ID; break;
+ case BuiltinType::UChar: ID = pch::PREDEF_TYPE_UCHAR_ID; break;
+ case BuiltinType::UShort: ID = pch::PREDEF_TYPE_USHORT_ID; break;
+ case BuiltinType::UInt: ID = pch::PREDEF_TYPE_UINT_ID; break;
+ case BuiltinType::ULong: ID = pch::PREDEF_TYPE_ULONG_ID; break;
+ case BuiltinType::ULongLong: ID = pch::PREDEF_TYPE_ULONGLONG_ID; break;
+ case BuiltinType::UInt128: ID = pch::PREDEF_TYPE_UINT128_ID; break;
+ case BuiltinType::Char_S: ID = pch::PREDEF_TYPE_CHAR_S_ID; break;
+ case BuiltinType::SChar: ID = pch::PREDEF_TYPE_SCHAR_ID; break;
+ case BuiltinType::WChar: ID = pch::PREDEF_TYPE_WCHAR_ID; break;
+ case BuiltinType::Short: ID = pch::PREDEF_TYPE_SHORT_ID; break;
+ case BuiltinType::Int: ID = pch::PREDEF_TYPE_INT_ID; break;
+ case BuiltinType::Long: ID = pch::PREDEF_TYPE_LONG_ID; break;
+ case BuiltinType::LongLong: ID = pch::PREDEF_TYPE_LONGLONG_ID; break;
+ case BuiltinType::Int128: ID = pch::PREDEF_TYPE_INT128_ID; break;
+ case BuiltinType::Float: ID = pch::PREDEF_TYPE_FLOAT_ID; break;
+ case BuiltinType::Double: ID = pch::PREDEF_TYPE_DOUBLE_ID; break;
+ case BuiltinType::LongDouble: ID = pch::PREDEF_TYPE_LONGDOUBLE_ID; break;
+ case BuiltinType::NullPtr: ID = pch::PREDEF_TYPE_NULLPTR_ID; break;
+ case BuiltinType::Char16: ID = pch::PREDEF_TYPE_CHAR16_ID; break;
+ case BuiltinType::Char32: ID = pch::PREDEF_TYPE_CHAR32_ID; break;
+ case BuiltinType::Overload: ID = pch::PREDEF_TYPE_OVERLOAD_ID; break;
+ case BuiltinType::Dependent: ID = pch::PREDEF_TYPE_DEPENDENT_ID; break;
+ case BuiltinType::ObjCId: ID = pch::PREDEF_TYPE_OBJC_ID; break;
+ case BuiltinType::ObjCClass: ID = pch::PREDEF_TYPE_OBJC_CLASS; break;
+ case BuiltinType::ObjCSel: ID = pch::PREDEF_TYPE_OBJC_SEL; break;
+ case BuiltinType::UndeducedAuto:
+ assert(0 && "Should not see undeduced auto here");
+ break;
+ }
+
+ Record.push_back((ID << Qualifiers::FastWidth) | FastQuals);
+ return;
+ }
+
+ pch::TypeID &ID = TypeIDs[T];
+ if (ID == 0) {
+ // We haven't seen this type before. Assign it a new ID and put it
+ // into the queue of types to emit.
+ ID = NextTypeID++;
+ DeclTypesToEmit.push(T);
+ }
+
+ // Encode the type qualifiers in the type reference.
+ Record.push_back((ID << Qualifiers::FastWidth) | FastQuals);
+}
+
+void PCHWriter::AddDeclRef(const Decl *D, RecordData &Record) {
+ Record.push_back(GetDeclRef(D));
+}
+
+pch::DeclID PCHWriter::GetDeclRef(const Decl *D) {
+ if (D == 0) {
+ return 0;
+ }
+
+ pch::DeclID &ID = DeclIDs[D];
+ if (ID == 0) {
+ // We haven't seen this declaration before. Give it a new ID and
+ // enqueue it in the list of declarations to emit.
+ ID = NextDeclID++;
+ DeclTypesToEmit.push(const_cast<Decl *>(D));
+ } else if (ID < FirstDeclID && D->isChangedSinceDeserialization()) {
+ // We don't add it to the replacement collection here, because we don't
+ // have the offset yet.
+ DeclTypesToEmit.push(const_cast<Decl *>(D));
+ // Reset the flag, so that we don't add this decl multiple times.
+ const_cast<Decl *>(D)->setChangedSinceDeserialization(false);
+ }
+
+ return ID;
+}
+
+pch::DeclID PCHWriter::getDeclID(const Decl *D) {
+ if (D == 0)
+ return 0;
+
+ assert(DeclIDs.find(D) != DeclIDs.end() && "Declaration not emitted!");
+ return DeclIDs[D];
+}
+
+void PCHWriter::AddDeclarationName(DeclarationName Name, RecordData &Record) {
+ // FIXME: Emit a stable enum for NameKind. 0 = Identifier etc.
+ Record.push_back(Name.getNameKind());
+ switch (Name.getNameKind()) {
+ case DeclarationName::Identifier:
+ AddIdentifierRef(Name.getAsIdentifierInfo(), Record);
+ break;
+
+ case DeclarationName::ObjCZeroArgSelector:
+ case DeclarationName::ObjCOneArgSelector:
+ case DeclarationName::ObjCMultiArgSelector:
+ AddSelectorRef(Name.getObjCSelector(), Record);
+ break;
+
+ case DeclarationName::CXXConstructorName:
+ case DeclarationName::CXXDestructorName:
+ case DeclarationName::CXXConversionFunctionName:
+ AddTypeRef(Name.getCXXNameType(), Record);
+ break;
+
+ case DeclarationName::CXXOperatorName:
+ Record.push_back(Name.getCXXOverloadedOperator());
+ break;
+
+ case DeclarationName::CXXLiteralOperatorName:
+ AddIdentifierRef(Name.getCXXLiteralIdentifier(), Record);
+ break;
+
+ case DeclarationName::CXXUsingDirective:
+ // No extra data to emit
+ break;
+ }
+}
+
+void PCHWriter::AddNestedNameSpecifier(NestedNameSpecifier *NNS,
+ RecordData &Record) {
+ // Nested name specifiers usually aren't too long. I think that 8 would
+ // typically accomodate the vast majority.
+ llvm::SmallVector<NestedNameSpecifier *, 8> NestedNames;
+
+ // Push each of the NNS's onto a stack for serialization in reverse order.
+ while (NNS) {
+ NestedNames.push_back(NNS);
+ NNS = NNS->getPrefix();
+ }
+
+ Record.push_back(NestedNames.size());
+ while(!NestedNames.empty()) {
+ NNS = NestedNames.pop_back_val();
+ NestedNameSpecifier::SpecifierKind Kind = NNS->getKind();
+ Record.push_back(Kind);
+ switch (Kind) {
+ case NestedNameSpecifier::Identifier:
+ AddIdentifierRef(NNS->getAsIdentifier(), Record);
+ break;
+
+ case NestedNameSpecifier::Namespace:
+ AddDeclRef(NNS->getAsNamespace(), Record);
+ break;
+
+ case NestedNameSpecifier::TypeSpec:
+ case NestedNameSpecifier::TypeSpecWithTemplate:
+ AddTypeRef(QualType(NNS->getAsType(), 0), Record);
+ Record.push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
+ break;
+
+ case NestedNameSpecifier::Global:
+ // Don't need to write an associated value.
+ break;
+ }
+ }
+}
+
+void PCHWriter::AddTemplateName(TemplateName Name, RecordData &Record) {
+ TemplateName::NameKind Kind = Name.getKind();
+ Record.push_back(Kind);
+ switch (Kind) {
+ case TemplateName::Template:
+ AddDeclRef(Name.getAsTemplateDecl(), Record);
+ break;
+
+ case TemplateName::OverloadedTemplate: {
+ OverloadedTemplateStorage *OvT = Name.getAsOverloadedTemplate();
+ Record.push_back(OvT->size());
+ for (OverloadedTemplateStorage::iterator I = OvT->begin(), E = OvT->end();
+ I != E; ++I)
+ AddDeclRef(*I, Record);
+ break;
+ }
+
+ case TemplateName::QualifiedTemplate: {
+ QualifiedTemplateName *QualT = Name.getAsQualifiedTemplateName();
+ AddNestedNameSpecifier(QualT->getQualifier(), Record);
+ Record.push_back(QualT->hasTemplateKeyword());
+ AddDeclRef(QualT->getTemplateDecl(), Record);
+ break;
+ }
+
+ case TemplateName::DependentTemplate: {
+ DependentTemplateName *DepT = Name.getAsDependentTemplateName();
+ AddNestedNameSpecifier(DepT->getQualifier(), Record);
+ Record.push_back(DepT->isIdentifier());
+ if (DepT->isIdentifier())
+ AddIdentifierRef(DepT->getIdentifier(), Record);
+ else
+ Record.push_back(DepT->getOperator());
+ break;
+ }
+ }
+}
+
+void PCHWriter::AddTemplateArgument(const TemplateArgument &Arg,
+ RecordData &Record) {
+ Record.push_back(Arg.getKind());
+ switch (Arg.getKind()) {
+ case TemplateArgument::Null:
+ break;
+ case TemplateArgument::Type:
+ AddTypeRef(Arg.getAsType(), Record);
+ break;
+ case TemplateArgument::Declaration:
+ AddDeclRef(Arg.getAsDecl(), Record);
+ break;
+ case TemplateArgument::Integral:
+ AddAPSInt(*Arg.getAsIntegral(), Record);
+ AddTypeRef(Arg.getIntegralType(), Record);
+ break;
+ case TemplateArgument::Template:
+ AddTemplateName(Arg.getAsTemplate(), Record);
+ break;
+ case TemplateArgument::Expression:
+ AddStmt(Arg.getAsExpr());
+ break;
+ case TemplateArgument::Pack:
+ Record.push_back(Arg.pack_size());
+ for (TemplateArgument::pack_iterator I=Arg.pack_begin(), E=Arg.pack_end();
+ I != E; ++I)
+ AddTemplateArgument(*I, Record);
+ break;
+ }
+}
+
+void
+PCHWriter::AddTemplateParameterList(const TemplateParameterList *TemplateParams,
+ RecordData &Record) {
+ assert(TemplateParams && "No TemplateParams!");
+ AddSourceLocation(TemplateParams->getTemplateLoc(), Record);
+ AddSourceLocation(TemplateParams->getLAngleLoc(), Record);
+ AddSourceLocation(TemplateParams->getRAngleLoc(), Record);
+ Record.push_back(TemplateParams->size());
+ for (TemplateParameterList::const_iterator
+ P = TemplateParams->begin(), PEnd = TemplateParams->end();
+ P != PEnd; ++P)
+ AddDeclRef(*P, Record);
+}
+
+/// \brief Emit a template argument list.
+void
+PCHWriter::AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs,
+ RecordData &Record) {
+ assert(TemplateArgs && "No TemplateArgs!");
+ Record.push_back(TemplateArgs->flat_size());
+ for (int i=0, e = TemplateArgs->flat_size(); i != e; ++i)
+ AddTemplateArgument(TemplateArgs->get(i), Record);
+}
+
+
+void
+PCHWriter::AddUnresolvedSet(const UnresolvedSetImpl &Set, RecordData &Record) {
+ Record.push_back(Set.size());
+ for (UnresolvedSetImpl::const_iterator
+ I = Set.begin(), E = Set.end(); I != E; ++I) {
+ AddDeclRef(I.getDecl(), Record);
+ Record.push_back(I.getAccess());
+ }
+}
+
+void PCHWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base,
+ RecordData &Record) {
+ Record.push_back(Base.isVirtual());
+ Record.push_back(Base.isBaseOfClass());
+ Record.push_back(Base.getAccessSpecifierAsWritten());
+ AddTypeSourceInfo(Base.getTypeSourceInfo(), Record);
+ AddSourceRange(Base.getSourceRange(), Record);
+}
+
+void PCHWriter::AddCXXBaseOrMemberInitializers(
+ const CXXBaseOrMemberInitializer * const *BaseOrMembers,
+ unsigned NumBaseOrMembers, RecordData &Record) {
+ Record.push_back(NumBaseOrMembers);
+ for (unsigned i=0; i != NumBaseOrMembers; ++i) {
+ const CXXBaseOrMemberInitializer *Init = BaseOrMembers[i];
+
+ Record.push_back(Init->isBaseInitializer());
+ if (Init->isBaseInitializer()) {
+ AddTypeSourceInfo(Init->getBaseClassInfo(), Record);
+ Record.push_back(Init->isBaseVirtual());
+ } else {
+ AddDeclRef(Init->getMember(), Record);
+ }
+ AddSourceLocation(Init->getMemberLocation(), Record);
+ AddStmt(Init->getInit());
+ AddDeclRef(Init->getAnonUnionMember(), Record);
+ AddSourceLocation(Init->getLParenLoc(), Record);
+ AddSourceLocation(Init->getRParenLoc(), Record);
+ Record.push_back(Init->isWritten());
+ if (Init->isWritten()) {
+ Record.push_back(Init->getSourceOrder());
+ } else {
+ Record.push_back(Init->getNumArrayIndices());
+ for (unsigned i=0, e=Init->getNumArrayIndices(); i != e; ++i)
+ AddDeclRef(Init->getArrayIndex(i), Record);
+ }
+ }
+}
+
+void PCHWriter::SetReader(PCHReader *Reader) {
+ assert(Reader && "Cannot remove chain");
+ assert(FirstDeclID == NextDeclID &&
+ FirstTypeID == NextTypeID &&
+ FirstIdentID == NextIdentID &&
+ FirstSelectorID == NextSelectorID &&
+ "Setting chain after writing has started.");
+ Chain = Reader;
+}
+
+void PCHWriter::IdentifierRead(pch::IdentID ID, IdentifierInfo *II) {
+ IdentifierIDs[II] = ID;
+}
+
+void PCHWriter::TypeRead(pch::TypeID ID, QualType T) {
+ TypeIDs[T] = ID;
+}
+
+void PCHWriter::DeclRead(pch::DeclID ID, const Decl *D) {
+ DeclIDs[D] = ID;
+}
+
+void PCHWriter::SelectorRead(pch::SelectorID ID, Selector S) {
+ SelectorIDs[S] = ID;
+}
diff --git a/clang/lib/Serialization/PCHWriterDecl.cpp b/clang/lib/Serialization/PCHWriterDecl.cpp
new file mode 100644
index 00000000000..a9ec5276e84
--- /dev/null
+++ b/clang/lib/Serialization/PCHWriterDecl.cpp
@@ -0,0 +1,1174 @@
+//===--- PCHWriterDecl.cpp - Declaration Serialization --------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements serialization for Declarations.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Serialization/PCHWriter.h"
+#include "clang/AST/DeclVisitor.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/Expr.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Bitcode/BitstreamWriter.h"
+#include "llvm/Support/ErrorHandling.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// Declaration serialization
+//===----------------------------------------------------------------------===//
+
+namespace clang {
+ class PCHDeclWriter : public DeclVisitor<PCHDeclWriter, void> {
+
+ PCHWriter &Writer;
+ ASTContext &Context;
+ PCHWriter::RecordData &Record;
+
+ public:
+ pch::DeclCode Code;
+ unsigned AbbrevToUse;
+
+ PCHDeclWriter(PCHWriter &Writer, ASTContext &Context,
+ PCHWriter::RecordData &Record)
+ : Writer(Writer), Context(Context), Record(Record) {
+ }
+
+ void Visit(Decl *D);
+
+ void VisitDecl(Decl *D);
+ void VisitTranslationUnitDecl(TranslationUnitDecl *D);
+ void VisitNamedDecl(NamedDecl *D);
+ void VisitNamespaceDecl(NamespaceDecl *D);
+ void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
+ void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
+ void VisitTypeDecl(TypeDecl *D);
+ void VisitTypedefDecl(TypedefDecl *D);
+ void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
+ void VisitTagDecl(TagDecl *D);
+ void VisitEnumDecl(EnumDecl *D);
+ void VisitRecordDecl(RecordDecl *D);
+ void VisitCXXRecordDecl(CXXRecordDecl *D);
+ void VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D);
+ void VisitClassTemplatePartialSpecializationDecl(
+ ClassTemplatePartialSpecializationDecl *D);
+ void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
+ void VisitValueDecl(ValueDecl *D);
+ void VisitEnumConstantDecl(EnumConstantDecl *D);
+ void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
+ void VisitDeclaratorDecl(DeclaratorDecl *D);
+ void VisitFunctionDecl(FunctionDecl *D);
+ void VisitCXXMethodDecl(CXXMethodDecl *D);
+ void VisitCXXConstructorDecl(CXXConstructorDecl *D);
+ void VisitCXXDestructorDecl(CXXDestructorDecl *D);
+ void VisitCXXConversionDecl(CXXConversionDecl *D);
+ void VisitFieldDecl(FieldDecl *D);
+ void VisitVarDecl(VarDecl *D);
+ void VisitImplicitParamDecl(ImplicitParamDecl *D);
+ void VisitParmVarDecl(ParmVarDecl *D);
+ void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
+ void VisitTemplateDecl(TemplateDecl *D);
+ void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
+ void VisitClassTemplateDecl(ClassTemplateDecl *D);
+ void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
+ void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
+ void VisitUsingDecl(UsingDecl *D);
+ void VisitUsingShadowDecl(UsingShadowDecl *D);
+ void VisitLinkageSpecDecl(LinkageSpecDecl *D);
+ void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
+ void VisitAccessSpecDecl(AccessSpecDecl *D);
+ void VisitFriendDecl(FriendDecl *D);
+ void VisitFriendTemplateDecl(FriendTemplateDecl *D);
+ void VisitStaticAssertDecl(StaticAssertDecl *D);
+ void VisitBlockDecl(BlockDecl *D);
+
+ void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
+ uint64_t VisibleOffset);
+ template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
+
+
+ // FIXME: Put in the same order is DeclNodes.td?
+ void VisitObjCMethodDecl(ObjCMethodDecl *D);
+ void VisitObjCContainerDecl(ObjCContainerDecl *D);
+ void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
+ void VisitObjCIvarDecl(ObjCIvarDecl *D);
+ void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
+ void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
+ void VisitObjCClassDecl(ObjCClassDecl *D);
+ void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
+ void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
+ void VisitObjCImplDecl(ObjCImplDecl *D);
+ void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
+ void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
+ void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
+ void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
+ void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
+ };
+}
+
+void PCHDeclWriter::Visit(Decl *D) {
+ DeclVisitor<PCHDeclWriter>::Visit(D);
+
+ // Handle FunctionDecl's body here and write it after all other Stmts/Exprs
+ // have been written. We want it last because we will not read it back when
+ // retrieving it from the PCH, we'll just lazily set the offset.
+ if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
+ Record.push_back(FD->isThisDeclarationADefinition());
+ if (FD->isThisDeclarationADefinition())
+ Writer.AddStmt(FD->getBody());
+ }
+}
+
+void PCHDeclWriter::VisitDecl(Decl *D) {
+ Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record);
+ Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record);
+ Writer.AddSourceLocation(D->getLocation(), Record);
+ Record.push_back(D->isInvalidDecl());
+ Record.push_back(D->hasAttrs());
+ Record.push_back(D->isImplicit());
+ Record.push_back(D->isUsed(false));
+ Record.push_back(D->getAccess());
+ Record.push_back(D->getPCHLevel());
+}
+
+void PCHDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
+ VisitDecl(D);
+ Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
+ Code = pch::DECL_TRANSLATION_UNIT;
+}
+
+void PCHDeclWriter::VisitNamedDecl(NamedDecl *D) {
+ VisitDecl(D);
+ Writer.AddDeclarationName(D->getDeclName(), Record);
+}
+
+void PCHDeclWriter::VisitTypeDecl(TypeDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
+}
+
+void PCHDeclWriter::VisitTypedefDecl(TypedefDecl *D) {
+ VisitTypeDecl(D);
+ Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
+ Code = pch::DECL_TYPEDEF;
+}
+
+void PCHDeclWriter::VisitTagDecl(TagDecl *D) {
+ VisitTypeDecl(D);
+ Record.push_back(D->getIdentifierNamespace());
+ VisitRedeclarable(D);
+ Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
+ Record.push_back(D->isDefinition());
+ Record.push_back(D->isEmbeddedInDeclarator());
+ Writer.AddSourceLocation(D->getRBraceLoc(), Record);
+ Writer.AddSourceLocation(D->getTagKeywordLoc(), Record);
+ // FIXME: maybe write optional qualifier and its range.
+ Writer.AddDeclRef(D->getTypedefForAnonDecl(), Record);
+}
+
+void PCHDeclWriter::VisitEnumDecl(EnumDecl *D) {
+ VisitTagDecl(D);
+ Writer.AddTypeRef(D->getIntegerType(), Record);
+ Writer.AddTypeRef(D->getPromotionType(), Record);
+ Record.push_back(D->getNumPositiveBits());
+ Record.push_back(D->getNumNegativeBits());
+ Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record);
+ Code = pch::DECL_ENUM;
+}
+
+void PCHDeclWriter::VisitRecordDecl(RecordDecl *D) {
+ VisitTagDecl(D);
+ Record.push_back(D->hasFlexibleArrayMember());
+ Record.push_back(D->isAnonymousStructOrUnion());
+ Record.push_back(D->hasObjectMember());
+ Code = pch::DECL_RECORD;
+}
+
+void PCHDeclWriter::VisitValueDecl(ValueDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddTypeRef(D->getType(), Record);
+}
+
+void PCHDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) {
+ VisitValueDecl(D);
+ Record.push_back(D->getInitExpr()? 1 : 0);
+ if (D->getInitExpr())
+ Writer.AddStmt(D->getInitExpr());
+ Writer.AddAPSInt(D->getInitVal(), Record);
+ Code = pch::DECL_ENUM_CONSTANT;
+}
+
+void PCHDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
+ VisitValueDecl(D);
+ Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
+ // FIXME: write optional qualifier and its range.
+}
+
+void PCHDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
+ VisitDeclaratorDecl(D);
+ // FIXME: write DeclarationNameLoc.
+
+ Record.push_back(D->getIdentifierNamespace());
+ Record.push_back(D->getTemplatedKind());
+ switch (D->getTemplatedKind()) {
+ default: assert(false && "Unhandled TemplatedKind!");
+ break;
+ case FunctionDecl::TK_NonTemplate:
+ break;
+ case FunctionDecl::TK_FunctionTemplate:
+ Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record);
+ break;
+ case FunctionDecl::TK_MemberSpecialization: {
+ MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo();
+ Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record);
+ Record.push_back(MemberInfo->getTemplateSpecializationKind());
+ Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record);
+ break;
+ }
+ case FunctionDecl::TK_FunctionTemplateSpecialization: {
+ FunctionTemplateSpecializationInfo *
+ FTSInfo = D->getTemplateSpecializationInfo();
+ // We want it canonical to guarantee that it has a Common*.
+ Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record);
+ Record.push_back(FTSInfo->getTemplateSpecializationKind());
+
+ // Template arguments.
+ Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record);
+
+ // Template args as written.
+ Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0);
+ if (FTSInfo->TemplateArgumentsAsWritten) {
+ Record.push_back(FTSInfo->TemplateArgumentsAsWritten->size());
+ for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->size(); i!=e; ++i)
+ Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i],
+ Record);
+ Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->getLAngleLoc(),
+ Record);
+ Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->getRAngleLoc(),
+ Record);
+ }
+
+ Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record);
+ break;
+ }
+ case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
+ DependentFunctionTemplateSpecializationInfo *
+ DFTSInfo = D->getDependentSpecializationInfo();
+
+ // Templates.
+ Record.push_back(DFTSInfo->getNumTemplates());
+ for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
+ Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record);
+
+ // Templates args.
+ Record.push_back(DFTSInfo->getNumTemplateArgs());
+ for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i)
+ Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record);
+ Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record);
+ Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record);
+ break;
+ }
+ }
+
+ // FunctionDecl's body is handled last at PCHWriterDecl::Visit,
+ // after everything else is written.
+
+ VisitRedeclarable(D);
+ Record.push_back(D->getStorageClass()); // FIXME: stable encoding
+ Record.push_back(D->getStorageClassAsWritten());
+ Record.push_back(D->isInlineSpecified());
+ Record.push_back(D->isVirtualAsWritten());
+ Record.push_back(D->isPure());
+ Record.push_back(D->hasInheritedPrototype());
+ Record.push_back(D->hasWrittenPrototype());
+ Record.push_back(D->isDeleted());
+ Record.push_back(D->isTrivial());
+ Record.push_back(D->isCopyAssignment());
+ Record.push_back(D->hasImplicitReturnZero());
+ Writer.AddSourceLocation(D->getLocEnd(), Record);
+
+ Record.push_back(D->param_size());
+ for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
+ P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+ Code = pch::DECL_FUNCTION;
+}
+
+void PCHDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
+ VisitNamedDecl(D);
+ // FIXME: convert to LazyStmtPtr?
+ // Unlike C/C++, method bodies will never be in header files.
+ bool HasBodyStuff = D->getBody() != 0 ||
+ D->getSelfDecl() != 0 || D->getCmdDecl() != 0;
+ Record.push_back(HasBodyStuff);
+ if (HasBodyStuff) {
+ Writer.AddStmt(D->getBody());
+ Writer.AddDeclRef(D->getSelfDecl(), Record);
+ Writer.AddDeclRef(D->getCmdDecl(), Record);
+ }
+ Record.push_back(D->isInstanceMethod());
+ Record.push_back(D->isVariadic());
+ Record.push_back(D->isSynthesized());
+ Record.push_back(D->isDefined());
+ // FIXME: stable encoding for @required/@optional
+ Record.push_back(D->getImplementationControl());
+ // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway
+ Record.push_back(D->getObjCDeclQualifier());
+ Record.push_back(D->getNumSelectorArgs());
+ Writer.AddTypeRef(D->getResultType(), Record);
+ Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record);
+ Writer.AddSourceLocation(D->getLocEnd(), Record);
+ Record.push_back(D->param_size());
+ for (ObjCMethodDecl::param_iterator P = D->param_begin(),
+ PEnd = D->param_end(); P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+ Code = pch::DECL_OBJC_METHOD;
+}
+
+void PCHDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceRange(D->getAtEndRange(), Record);
+ // Abstract class (no need to define a stable pch::DECL code).
+}
+
+void PCHDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
+ VisitObjCContainerDecl(D);
+ Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
+ Writer.AddDeclRef(D->getSuperClass(), Record);
+ Record.push_back(D->protocol_size());
+ for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(),
+ PEnd = D->protocol_end();
+ P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+ for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
+ PLEnd = D->protocol_loc_end();
+ PL != PLEnd; ++PL)
+ Writer.AddSourceLocation(*PL, Record);
+ Record.push_back(D->ivar_size());
+ for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(),
+ IEnd = D->ivar_end(); I != IEnd; ++I)
+ Writer.AddDeclRef(*I, Record);
+ Writer.AddDeclRef(D->getCategoryList(), Record);
+ Record.push_back(D->isForwardDecl());
+ Record.push_back(D->isImplicitInterfaceDecl());
+ Writer.AddSourceLocation(D->getClassLoc(), Record);
+ Writer.AddSourceLocation(D->getSuperClassLoc(), Record);
+ Writer.AddSourceLocation(D->getLocEnd(), Record);
+ Code = pch::DECL_OBJC_INTERFACE;
+}
+
+void PCHDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
+ VisitFieldDecl(D);
+ // FIXME: stable encoding for @public/@private/@protected/@package
+ Record.push_back(D->getAccessControl());
+ Record.push_back(D->getSynthesize());
+ Code = pch::DECL_OBJC_IVAR;
+}
+
+void PCHDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
+ VisitObjCContainerDecl(D);
+ Record.push_back(D->isForwardDecl());
+ Writer.AddSourceLocation(D->getLocEnd(), Record);
+ Record.push_back(D->protocol_size());
+ for (ObjCProtocolDecl::protocol_iterator
+ I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
+ Writer.AddDeclRef(*I, Record);
+ for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
+ PLEnd = D->protocol_loc_end();
+ PL != PLEnd; ++PL)
+ Writer.AddSourceLocation(*PL, Record);
+ Code = pch::DECL_OBJC_PROTOCOL;
+}
+
+void PCHDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
+ VisitFieldDecl(D);
+ Code = pch::DECL_OBJC_AT_DEFS_FIELD;
+}
+
+void PCHDeclWriter::VisitObjCClassDecl(ObjCClassDecl *D) {
+ VisitDecl(D);
+ Record.push_back(D->size());
+ for (ObjCClassDecl::iterator I = D->begin(), IEnd = D->end(); I != IEnd; ++I)
+ Writer.AddDeclRef(I->getInterface(), Record);
+ for (ObjCClassDecl::iterator I = D->begin(), IEnd = D->end(); I != IEnd; ++I)
+ Writer.AddSourceLocation(I->getLocation(), Record);
+ Code = pch::DECL_OBJC_CLASS;
+}
+
+void PCHDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
+ VisitDecl(D);
+ Record.push_back(D->protocol_size());
+ for (ObjCForwardProtocolDecl::protocol_iterator
+ I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
+ Writer.AddDeclRef(*I, Record);
+ for (ObjCForwardProtocolDecl::protocol_loc_iterator
+ PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
+ PL != PLEnd; ++PL)
+ Writer.AddSourceLocation(*PL, Record);
+ Code = pch::DECL_OBJC_FORWARD_PROTOCOL;
+}
+
+void PCHDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
+ VisitObjCContainerDecl(D);
+ Writer.AddDeclRef(D->getClassInterface(), Record);
+ Record.push_back(D->protocol_size());
+ for (ObjCCategoryDecl::protocol_iterator
+ I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
+ Writer.AddDeclRef(*I, Record);
+ for (ObjCCategoryDecl::protocol_loc_iterator
+ PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
+ PL != PLEnd; ++PL)
+ Writer.AddSourceLocation(*PL, Record);
+ Writer.AddDeclRef(D->getNextClassCategory(), Record);
+ Writer.AddSourceLocation(D->getAtLoc(), Record);
+ Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
+ Code = pch::DECL_OBJC_CATEGORY;
+}
+
+void PCHDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddDeclRef(D->getClassInterface(), Record);
+ Code = pch::DECL_OBJC_COMPATIBLE_ALIAS;
+}
+
+void PCHDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getAtLoc(), Record);
+ Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
+ // FIXME: stable encoding
+ Record.push_back((unsigned)D->getPropertyAttributes());
+ Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
+ // FIXME: stable encoding
+ Record.push_back((unsigned)D->getPropertyImplementation());
+ Writer.AddDeclarationName(D->getGetterName(), Record);
+ Writer.AddDeclarationName(D->getSetterName(), Record);
+ Writer.AddDeclRef(D->getGetterMethodDecl(), Record);
+ Writer.AddDeclRef(D->getSetterMethodDecl(), Record);
+ Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
+ Code = pch::DECL_OBJC_PROPERTY;
+}
+
+void PCHDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
+ VisitObjCContainerDecl(D);
+ Writer.AddDeclRef(D->getClassInterface(), Record);
+ // Abstract class (no need to define a stable pch::DECL code).
+}
+
+void PCHDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
+ VisitObjCImplDecl(D);
+ Writer.AddIdentifierRef(D->getIdentifier(), Record);
+ Code = pch::DECL_OBJC_CATEGORY_IMPL;
+}
+
+void PCHDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
+ VisitObjCImplDecl(D);
+ Writer.AddDeclRef(D->getSuperClass(), Record);
+ Writer.AddCXXBaseOrMemberInitializers(D->IvarInitializers,
+ D->NumIvarInitializers, Record);
+ Code = pch::DECL_OBJC_IMPLEMENTATION;
+}
+
+void PCHDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
+ VisitDecl(D);
+ Writer.AddSourceLocation(D->getLocStart(), Record);
+ Writer.AddDeclRef(D->getPropertyDecl(), Record);
+ Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
+ Writer.AddStmt(D->getGetterCXXConstructor());
+ Writer.AddStmt(D->getSetterCXXAssignment());
+ Code = pch::DECL_OBJC_PROPERTY_IMPL;
+}
+
+void PCHDeclWriter::VisitFieldDecl(FieldDecl *D) {
+ VisitDeclaratorDecl(D);
+ Record.push_back(D->isMutable());
+ Record.push_back(D->getBitWidth()? 1 : 0);
+ if (D->getBitWidth())
+ Writer.AddStmt(D->getBitWidth());
+ if (!D->getDeclName())
+ Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record);
+ Code = pch::DECL_FIELD;
+}
+
+void PCHDeclWriter::VisitVarDecl(VarDecl *D) {
+ VisitDeclaratorDecl(D);
+ Record.push_back(D->getStorageClass()); // FIXME: stable encoding
+ Record.push_back(D->getStorageClassAsWritten());
+ Record.push_back(D->isThreadSpecified());
+ Record.push_back(D->hasCXXDirectInitializer());
+ Record.push_back(D->isExceptionVariable());
+ Record.push_back(D->isNRVOVariable());
+ VisitRedeclarable(D);
+ Record.push_back(D->getInit() ? 1 : 0);
+ if (D->getInit())
+ Writer.AddStmt(D->getInit());
+
+ MemberSpecializationInfo *SpecInfo
+ = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0;
+ Record.push_back(SpecInfo != 0);
+ if (SpecInfo) {
+ Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record);
+ Record.push_back(SpecInfo->getTemplateSpecializationKind());
+ Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record);
+ }
+
+ Code = pch::DECL_VAR;
+}
+
+void PCHDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
+ VisitVarDecl(D);
+ Code = pch::DECL_IMPLICIT_PARAM;
+}
+
+void PCHDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
+ VisitVarDecl(D);
+ Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
+ Record.push_back(D->hasInheritedDefaultArg());
+ Record.push_back(D->hasUninstantiatedDefaultArg());
+ if (D->hasUninstantiatedDefaultArg())
+ Writer.AddStmt(D->getUninstantiatedDefaultArg());
+ Code = pch::DECL_PARM_VAR;
+
+ // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
+ // we dynamically check for the properties that we optimize for, but don't
+ // know are true of all PARM_VAR_DECLs.
+ if (!D->getTypeSourceInfo() &&
+ !D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ D->getAccess() == AS_none &&
+ D->getPCHLevel() == 0 &&
+ D->getStorageClass() == 0 &&
+ !D->hasCXXDirectInitializer() && // Can params have this ever?
+ D->getObjCDeclQualifier() == 0 &&
+ !D->hasInheritedDefaultArg() &&
+ D->getInit() == 0 &&
+ !D->hasUninstantiatedDefaultArg()) // No default expr.
+ AbbrevToUse = Writer.getParmVarDeclAbbrev();
+
+ // Check things we know are true of *every* PARM_VAR_DECL, which is more than
+ // just us assuming it.
+ assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls");
+ assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread");
+ assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
+ assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
+ assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl");
+ assert(!D->isStaticDataMember() &&
+ "PARM_VAR_DECL can't be static data member");
+}
+
+void PCHDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
+ VisitDecl(D);
+ Writer.AddStmt(D->getAsmString());
+ Code = pch::DECL_FILE_SCOPE_ASM;
+}
+
+void PCHDeclWriter::VisitBlockDecl(BlockDecl *D) {
+ VisitDecl(D);
+ Writer.AddStmt(D->getBody());
+ Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record);
+ Record.push_back(D->param_size());
+ for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
+ P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+ Code = pch::DECL_BLOCK;
+}
+
+void PCHDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
+ VisitDecl(D);
+ // FIXME: It might be nice to serialize the brace locations for this
+ // declaration, which don't seem to be readily available in the AST.
+ Record.push_back(D->getLanguage());
+ Record.push_back(D->hasBraces());
+ Code = pch::DECL_LINKAGE_SPEC;
+}
+
+void PCHDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getLBracLoc(), Record);
+ Writer.AddSourceLocation(D->getRBracLoc(), Record);
+ Writer.AddDeclRef(D->getNextNamespace(), Record);
+
+ // Only write one reference--original or anonymous
+ Record.push_back(D->isOriginalNamespace());
+ if (D->isOriginalNamespace())
+ Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
+ else
+ Writer.AddDeclRef(D->getOriginalNamespace(), Record);
+ Code = pch::DECL_NAMESPACE;
+
+ if (Writer.hasChain() && !D->isOriginalNamespace() &&
+ D->getOriginalNamespace()->getPCHLevel() > 0) {
+ Writer.AddUpdatedNamespace(D->getOriginalNamespace());
+ }
+}
+
+void PCHDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getAliasLoc(), Record);
+ Writer.AddSourceRange(D->getQualifierRange(), Record);
+ Writer.AddNestedNameSpecifier(D->getQualifier(), Record);
+ Writer.AddSourceLocation(D->getTargetNameLoc(), Record);
+ Writer.AddDeclRef(D->getNamespace(), Record);
+ Code = pch::DECL_NAMESPACE_ALIAS;
+}
+
+void PCHDeclWriter::VisitUsingDecl(UsingDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceRange(D->getNestedNameRange(), Record);
+ Writer.AddSourceLocation(D->getUsingLocation(), Record);
+ Writer.AddNestedNameSpecifier(D->getTargetNestedNameDecl(), Record);
+ Record.push_back(D->getNumShadowDecls());
+ for (UsingDecl::shadow_iterator P = D->shadow_begin(),
+ PEnd = D->shadow_end(); P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+ Record.push_back(D->isTypeName());
+ Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record);
+ Code = pch::DECL_USING;
+}
+
+void PCHDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddDeclRef(D->getTargetDecl(), Record);
+ Writer.AddDeclRef(D->getUsingDecl(), Record);
+ Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record);
+ Code = pch::DECL_USING_SHADOW;
+}
+
+void PCHDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record);
+ Writer.AddSourceRange(D->getQualifierRange(), Record);
+ Writer.AddNestedNameSpecifier(D->getQualifier(), Record);
+ Writer.AddSourceLocation(D->getIdentLocation(), Record);
+ Writer.AddDeclRef(D->getNominatedNamespace(), Record);
+ Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record);
+ Code = pch::DECL_USING_DIRECTIVE;
+}
+
+void PCHDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
+ VisitValueDecl(D);
+ Writer.AddSourceRange(D->getTargetNestedNameRange(), Record);
+ Writer.AddSourceLocation(D->getUsingLoc(), Record);
+ Writer.AddNestedNameSpecifier(D->getTargetNestedNameSpecifier(), Record);
+ Code = pch::DECL_UNRESOLVED_USING_VALUE;
+}
+
+void PCHDeclWriter::VisitUnresolvedUsingTypenameDecl(
+ UnresolvedUsingTypenameDecl *D) {
+ VisitTypeDecl(D);
+ Writer.AddSourceRange(D->getTargetNestedNameRange(), Record);
+ Writer.AddSourceLocation(D->getUsingLoc(), Record);
+ Writer.AddSourceLocation(D->getTypenameLoc(), Record);
+ Writer.AddNestedNameSpecifier(D->getTargetNestedNameSpecifier(), Record);
+ Code = pch::DECL_UNRESOLVED_USING_TYPENAME;
+}
+
+void PCHDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
+ // See comments at PCHDeclReader::VisitCXXRecordDecl about why this happens
+ // before VisitRecordDecl.
+ enum { Data_NoDefData, Data_Owner, Data_NotOwner };
+ bool OwnsDefinitionData = false;
+ if (D->DefinitionData) {
+ assert(D->DefinitionData->Definition &&
+ "DefinitionData don't point to a definition decl!");
+ OwnsDefinitionData = D->DefinitionData->Definition == D;
+ if (OwnsDefinitionData) {
+ Record.push_back(Data_Owner);
+ } else {
+ Record.push_back(Data_NotOwner);
+ Writer.AddDeclRef(D->DefinitionData->Definition, Record);
+ }
+ } else
+ Record.push_back(Data_NoDefData);
+
+ VisitRecordDecl(D);
+
+ if (OwnsDefinitionData) {
+ assert(D->DefinitionData);
+ struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData;
+
+ Record.push_back(Data.UserDeclaredConstructor);
+ Record.push_back(Data.UserDeclaredCopyConstructor);
+ Record.push_back(Data.UserDeclaredCopyAssignment);
+ Record.push_back(Data.UserDeclaredDestructor);
+ Record.push_back(Data.Aggregate);
+ Record.push_back(Data.PlainOldData);
+ Record.push_back(Data.Empty);
+ Record.push_back(Data.Polymorphic);
+ Record.push_back(Data.Abstract);
+ Record.push_back(Data.HasTrivialConstructor);
+ Record.push_back(Data.HasTrivialCopyConstructor);
+ Record.push_back(Data.HasTrivialCopyAssignment);
+ Record.push_back(Data.HasTrivialDestructor);
+ Record.push_back(Data.ComputedVisibleConversions);
+ Record.push_back(Data.DeclaredDefaultConstructor);
+ Record.push_back(Data.DeclaredCopyConstructor);
+ Record.push_back(Data.DeclaredCopyAssignment);
+ Record.push_back(Data.DeclaredDestructor);
+
+ Record.push_back(D->getNumBases());
+ for (CXXRecordDecl::base_class_iterator I = D->bases_begin(),
+ E = D->bases_end(); I != E; ++I)
+ Writer.AddCXXBaseSpecifier(*I, Record);
+
+ // FIXME: Make VBases lazily computed when needed to avoid storing them.
+ Record.push_back(D->getNumVBases());
+ for (CXXRecordDecl::base_class_iterator I = D->vbases_begin(),
+ E = D->vbases_end(); I != E; ++I)
+ Writer.AddCXXBaseSpecifier(*I, Record);
+
+ Writer.AddUnresolvedSet(Data.Conversions, Record);
+ Writer.AddUnresolvedSet(Data.VisibleConversions, Record);
+ // Data.Definition is written at the top.
+ Writer.AddDeclRef(Data.FirstFriend, Record);
+ }
+
+ enum {
+ CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
+ };
+ if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
+ Record.push_back(CXXRecTemplate);
+ Writer.AddDeclRef(TemplD, Record);
+ } else if (MemberSpecializationInfo *MSInfo
+ = D->getMemberSpecializationInfo()) {
+ Record.push_back(CXXRecMemberSpecialization);
+ Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record);
+ Record.push_back(MSInfo->getTemplateSpecializationKind());
+ Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record);
+ } else {
+ Record.push_back(CXXRecNotTemplate);
+ }
+
+ Code = pch::DECL_CXX_RECORD;
+}
+
+void PCHDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
+ VisitFunctionDecl(D);
+ Record.push_back(D->size_overridden_methods());
+ for (CXXMethodDecl::method_iterator
+ I = D->begin_overridden_methods(), E = D->end_overridden_methods();
+ I != E; ++I)
+ Writer.AddDeclRef(*I, Record);
+ Code = pch::DECL_CXX_METHOD;
+}
+
+void PCHDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ Record.push_back(D->IsExplicitSpecified);
+ Record.push_back(D->ImplicitlyDefined);
+ Writer.AddCXXBaseOrMemberInitializers(D->BaseOrMemberInitializers,
+ D->NumBaseOrMemberInitializers, Record);
+
+ Code = pch::DECL_CXX_CONSTRUCTOR;
+}
+
+void PCHDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ Record.push_back(D->ImplicitlyDefined);
+ Writer.AddDeclRef(D->OperatorDelete, Record);
+
+ Code = pch::DECL_CXX_DESTRUCTOR;
+}
+
+void PCHDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
+ VisitCXXMethodDecl(D);
+ Record.push_back(D->IsExplicitSpecified);
+ Code = pch::DECL_CXX_CONVERSION;
+}
+
+void PCHDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
+ VisitDecl(D);
+ Writer.AddSourceLocation(D->getColonLoc(), Record);
+ Code = pch::DECL_ACCESS_SPEC;
+}
+
+void PCHDeclWriter::VisitFriendDecl(FriendDecl *D) {
+ VisitDecl(D);
+ Record.push_back(D->Friend.is<TypeSourceInfo*>());
+ if (D->Friend.is<TypeSourceInfo*>())
+ Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record);
+ else
+ Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record);
+ Writer.AddDeclRef(D->NextFriend, Record);
+ Writer.AddSourceLocation(D->FriendLoc, Record);
+ Code = pch::DECL_FRIEND;
+}
+
+void PCHDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
+ VisitDecl(D);
+ Record.push_back(D->getNumTemplateParameters());
+ for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
+ Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record);
+ Record.push_back(D->getFriendDecl() != 0);
+ if (D->getFriendDecl())
+ Writer.AddDeclRef(D->getFriendDecl(), Record);
+ else
+ Writer.AddTypeSourceInfo(D->getFriendType(), Record);
+ Writer.AddSourceLocation(D->getFriendLoc(), Record);
+ Code = pch::DECL_FRIEND_TEMPLATE;
+}
+
+void PCHDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
+ VisitNamedDecl(D);
+
+ Writer.AddDeclRef(D->getTemplatedDecl(), Record);
+ Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
+}
+
+void PCHDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
+ VisitTemplateDecl(D);
+
+ Record.push_back(D->getIdentifierNamespace());
+ Writer.AddDeclRef(D->getPreviousDeclaration(), Record);
+ if (D->getPreviousDeclaration() == 0) {
+ // This TemplateDecl owns the CommonPtr; write it.
+ assert(D->isCanonicalDecl());
+
+ Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record);
+ if (D->getInstantiatedFromMemberTemplate())
+ Record.push_back(D->isMemberSpecialization());
+
+ Writer.AddDeclRef(D->getCommonPtr()->Latest, Record);
+ } else {
+ RedeclarableTemplateDecl *First = D->getFirstDeclaration();
+ assert(First != D);
+ // If this is a most recent redeclaration that is pointed to by a first decl
+ // in a chained PCH, keep track of the association with the map so we can
+ // update the first decl during PCH reading.
+ if (First->getMostRecentDeclaration() == D &&
+ First->getPCHLevel() > D->getPCHLevel()) {
+ assert(Writer.FirstLatestDecls.find(First)==Writer.FirstLatestDecls.end()
+ && "The latest is already set");
+ Writer.FirstLatestDecls[First] = D;
+ }
+ }
+}
+
+void PCHDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->getPreviousDeclaration() == 0) {
+ typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy;
+ CTSDSetTy &CTSDSet = D->getSpecializations();
+ Record.push_back(CTSDSet.size());
+ for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) {
+ assert(I->isCanonicalDecl() && "Expected only canonical decls in set");
+ Writer.AddDeclRef(&*I, Record);
+ }
+
+ typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy;
+ CTPSDSetTy &CTPSDSet = D->getPartialSpecializations();
+ Record.push_back(CTPSDSet.size());
+ for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) {
+ assert(I->isCanonicalDecl() && "Expected only canonical decls in set");
+ Writer.AddDeclRef(&*I, Record);
+ }
+
+ // InjectedClassNameType is computed, no need to write it.
+ }
+ Code = pch::DECL_CLASS_TEMPLATE;
+}
+
+void PCHDeclWriter::VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D) {
+ VisitCXXRecordDecl(D);
+
+ llvm::PointerUnion<ClassTemplateDecl *,
+ ClassTemplatePartialSpecializationDecl *> InstFrom
+ = D->getSpecializedTemplateOrPartial();
+ if (InstFrom.is<ClassTemplateDecl *>()) {
+ Writer.AddDeclRef(InstFrom.get<ClassTemplateDecl *>(), Record);
+ } else {
+ Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(),
+ Record);
+ Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record);
+ }
+
+ // Explicit info.
+ Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record);
+ if (D->getTypeAsWritten()) {
+ Writer.AddSourceLocation(D->getExternLoc(), Record);
+ Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record);
+ }
+
+ Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record);
+ Writer.AddSourceLocation(D->getPointOfInstantiation(), Record);
+ Record.push_back(D->getSpecializationKind());
+
+ if (D->isCanonicalDecl()) {
+ // When reading, we'll add it to the folding set of the following template.
+ Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record);
+ }
+
+ Code = pch::DECL_CLASS_TEMPLATE_SPECIALIZATION;
+}
+
+void PCHDeclWriter::VisitClassTemplatePartialSpecializationDecl(
+ ClassTemplatePartialSpecializationDecl *D) {
+ VisitClassTemplateSpecializationDecl(D);
+
+ Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
+
+ Record.push_back(D->getNumTemplateArgsAsWritten());
+ for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i)
+ Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record);
+
+ Record.push_back(D->getSequenceNumber());
+
+ // These are read/set from/to the first declaration.
+ if (D->getPreviousDeclaration() == 0) {
+ Writer.AddDeclRef(D->getInstantiatedFromMember(), Record);
+ Record.push_back(D->isMemberSpecialization());
+ }
+
+ Code = pch::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
+}
+
+void PCHDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->getPreviousDeclaration() == 0) {
+ // This FunctionTemplateDecl owns the CommonPtr; write it.
+
+ // Write the function specialization declarations.
+ Record.push_back(D->getSpecializations().size());
+ for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator
+ I = D->getSpecializations().begin(),
+ E = D->getSpecializations().end() ; I != E; ++I) {
+ assert(I->Function->isCanonicalDecl() &&
+ "Expected only canonical decls in set");
+ Writer.AddDeclRef(I->Function, Record);
+ }
+ }
+ Code = pch::DECL_FUNCTION_TEMPLATE;
+}
+
+void PCHDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
+ VisitTypeDecl(D);
+
+ Record.push_back(D->wasDeclaredWithTypename());
+ Record.push_back(D->isParameterPack());
+ Record.push_back(D->defaultArgumentWasInherited());
+ Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record);
+
+ Code = pch::DECL_TEMPLATE_TYPE_PARM;
+}
+
+void PCHDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
+ VisitVarDecl(D);
+ // TemplateParmPosition.
+ Record.push_back(D->getDepth());
+ Record.push_back(D->getPosition());
+ // Rest of NonTypeTemplateParmDecl.
+ Record.push_back(D->getDefaultArgument() != 0);
+ if (D->getDefaultArgument()) {
+ Writer.AddStmt(D->getDefaultArgument());
+ Record.push_back(D->defaultArgumentWasInherited());
+ }
+ Code = pch::DECL_NON_TYPE_TEMPLATE_PARM;
+}
+
+void PCHDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
+ VisitTemplateDecl(D);
+ // TemplateParmPosition.
+ Record.push_back(D->getDepth());
+ Record.push_back(D->getPosition());
+ // Rest of TemplateTemplateParmDecl.
+ Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record);
+ Record.push_back(D->defaultArgumentWasInherited());
+ Code = pch::DECL_TEMPLATE_TEMPLATE_PARM;
+}
+
+void PCHDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
+ VisitDecl(D);
+ Writer.AddStmt(D->getAssertExpr());
+ Writer.AddStmt(D->getMessage());
+ Code = pch::DECL_STATIC_ASSERT;
+}
+
+/// \brief Emit the DeclContext part of a declaration context decl.
+///
+/// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL
+/// block for this declaration context is stored. May be 0 to indicate
+/// that there are no declarations stored within this context.
+///
+/// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE
+/// block for this declaration context is stored. May be 0 to indicate
+/// that there are no declarations visible from this context. Note
+/// that this value will not be emitted for non-primary declaration
+/// contexts.
+void PCHDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
+ uint64_t VisibleOffset) {
+ Record.push_back(LexicalOffset);
+ Record.push_back(VisibleOffset);
+}
+
+template <typename T>
+void PCHDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
+ enum { NoRedeclaration = 0, PointsToPrevious, PointsToLatest };
+ if (D->RedeclLink.getNext() == D) {
+ Record.push_back(NoRedeclaration);
+ } else {
+ Record.push_back(D->RedeclLink.NextIsPrevious() ? PointsToPrevious
+ : PointsToLatest);
+ Writer.AddDeclRef(D->RedeclLink.getPointer(), Record);
+ }
+
+ T *First = D->getFirstDeclaration();
+ T *ThisDecl = static_cast<T*>(D);
+ // If this is a most recent redeclaration that is pointed to by a first decl
+ // in a chained PCH, keep track of the association with the map so we can
+ // update the first decl during PCH reading.
+ if (ThisDecl != First && First->getMostRecentDeclaration() == ThisDecl &&
+ First->getPCHLevel() > ThisDecl->getPCHLevel()) {
+ assert(Writer.FirstLatestDecls.find(First) == Writer.FirstLatestDecls.end()
+ && "The latest is already set");
+ Writer.FirstLatestDecls[First] = ThisDecl;
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// PCHWriter Implementation
+//===----------------------------------------------------------------------===//
+
+void PCHWriter::WriteDeclsBlockAbbrevs() {
+ using namespace llvm;
+ // Abbreviation for DECL_PARM_VAR.
+ BitCodeAbbrev *Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(pch::DECL_PARM_VAR));
+
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?)
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // PCH level
+
+ // NamedDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
+ // ValueDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
+ // DeclaratorDecl
+ Abv->Add(BitCodeAbbrevOp(pch::PREDEF_TYPE_NULL_ID)); // InfoType
+ // VarDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // StorageClass
+ Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten
+ Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified
+ Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer
+ Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable
+ Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable
+ Abv->Add(BitCodeAbbrevOp(0)); // PrevDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasInit
+ Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
+ // ParmVarDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
+ Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
+ Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
+
+ ParmVarDeclAbbrev = Stream.EmitAbbrev(Abv);
+
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(pch::DECL_CONTEXT_LEXICAL));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv);
+}
+
+/// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
+/// consumers of the AST.
+///
+/// Such decls will always be deserialized from the PCH file, so we would like
+/// this to be as restrictive as possible. Currently the predicate is driven by
+/// code generation requirements, if other clients have a different notion of
+/// what is "required" then we may have to consider an alternate scheme where
+/// clients can iterate over the top-level decls and get information on them,
+/// without necessary deserializing them. We could explicitly require such
+/// clients to use a separate API call to "realize" the decl. This should be
+/// relatively painless since they would presumably only do it for top-level
+/// decls.
+static bool isRequiredDecl(const Decl *D, ASTContext &Context) {
+ // File scoped assembly or obj-c implementation must be seen.
+ if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplementationDecl>(D))
+ return true;
+
+ return Context.DeclMustBeEmitted(D);
+}
+
+void PCHWriter::WriteDecl(ASTContext &Context, Decl *D) {
+ RecordData Record;
+ PCHDeclWriter W(*this, Context, Record);
+
+ // If this declaration is also a DeclContext, write blocks for the
+ // declarations that lexically stored inside its context and those
+ // declarations that are visible from its context. These blocks
+ // are written before the declaration itself so that we can put
+ // their offsets into the record for the declaration.
+ uint64_t LexicalOffset = 0;
+ uint64_t VisibleOffset = 0;
+ DeclContext *DC = dyn_cast<DeclContext>(D);
+ if (DC) {
+ LexicalOffset = WriteDeclContextLexicalBlock(Context, DC);
+ VisibleOffset = WriteDeclContextVisibleBlock(Context, DC);
+ }
+
+ // Determine the ID for this declaration
+ pch::DeclID &IDR = DeclIDs[D];
+ if (IDR == 0)
+ IDR = NextDeclID++;
+ pch::DeclID ID = IDR;
+
+ if (ID < FirstDeclID) {
+ // We're replacing a decl in a previous file.
+ ReplacedDecls.push_back(std::make_pair(ID, Stream.GetCurrentBitNo()));
+ } else {
+ unsigned Index = ID - FirstDeclID;
+
+ // Record the offset for this declaration
+ if (DeclOffsets.size() == Index)
+ DeclOffsets.push_back(Stream.GetCurrentBitNo());
+ else if (DeclOffsets.size() < Index) {
+ DeclOffsets.resize(Index+1);
+ DeclOffsets[Index] = Stream.GetCurrentBitNo();
+ }
+ }
+
+ // Build and emit a record for this declaration
+ Record.clear();
+ W.Code = (pch::DeclCode)0;
+ W.AbbrevToUse = 0;
+ W.Visit(D);
+ if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset);
+
+ if (!W.Code)
+ llvm::report_fatal_error(llvm::StringRef("unexpected declaration kind '") +
+ D->getDeclKindName() + "'");
+ Stream.EmitRecord(W.Code, Record, W.AbbrevToUse);
+
+ // If the declaration had any attributes, write them now.
+ if (D->hasAttrs())
+ WriteAttributeRecord(D->getAttrs());
+
+ // Flush any expressions that were written as part of this declaration.
+ FlushStmts();
+
+ // Note "external" declarations so that we can add them to a record in the
+ // PCH file later.
+ //
+ // FIXME: This should be renamed, the predicate is much more complicated.
+ if (isRequiredDecl(D, Context))
+ ExternalDefinitions.push_back(ID);
+}
diff --git a/clang/lib/Serialization/PCHWriterStmt.cpp b/clang/lib/Serialization/PCHWriterStmt.cpp
new file mode 100644
index 00000000000..182a2726034
--- /dev/null
+++ b/clang/lib/Serialization/PCHWriterStmt.cpp
@@ -0,0 +1,1370 @@
+//===--- PCHWriterStmt.cpp - Statement and Expression Serialization -------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements serialization for Statements and Expressions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Serialization/PCHWriter.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclObjC.h"
+#include "clang/AST/StmtVisitor.h"
+#include "llvm/Bitcode/BitstreamWriter.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// Statement/expression serialization
+//===----------------------------------------------------------------------===//
+
+namespace clang {
+ class PCHStmtWriter : public StmtVisitor<PCHStmtWriter, void> {
+ PCHWriter &Writer;
+ PCHWriter::RecordData &Record;
+
+ public:
+ pch::StmtCode Code;
+
+ PCHStmtWriter(PCHWriter &Writer, PCHWriter::RecordData &Record)
+ : Writer(Writer), Record(Record) { }
+
+ void
+ AddExplicitTemplateArgumentList(const ExplicitTemplateArgumentList &Args);
+
+ void VisitStmt(Stmt *S);
+ void VisitNullStmt(NullStmt *S);
+ void VisitCompoundStmt(CompoundStmt *S);
+ void VisitSwitchCase(SwitchCase *S);
+ void VisitCaseStmt(CaseStmt *S);
+ void VisitDefaultStmt(DefaultStmt *S);
+ void VisitLabelStmt(LabelStmt *S);
+ void VisitIfStmt(IfStmt *S);
+ void VisitSwitchStmt(SwitchStmt *S);
+ void VisitWhileStmt(WhileStmt *S);
+ void VisitDoStmt(DoStmt *S);
+ void VisitForStmt(ForStmt *S);
+ void VisitGotoStmt(GotoStmt *S);
+ void VisitIndirectGotoStmt(IndirectGotoStmt *S);
+ void VisitContinueStmt(ContinueStmt *S);
+ void VisitBreakStmt(BreakStmt *S);
+ void VisitReturnStmt(ReturnStmt *S);
+ void VisitDeclStmt(DeclStmt *S);
+ void VisitAsmStmt(AsmStmt *S);
+ void VisitExpr(Expr *E);
+ void VisitPredefinedExpr(PredefinedExpr *E);
+ void VisitDeclRefExpr(DeclRefExpr *E);
+ void VisitIntegerLiteral(IntegerLiteral *E);
+ void VisitFloatingLiteral(FloatingLiteral *E);
+ void VisitImaginaryLiteral(ImaginaryLiteral *E);
+ void VisitStringLiteral(StringLiteral *E);
+ void VisitCharacterLiteral(CharacterLiteral *E);
+ void VisitParenExpr(ParenExpr *E);
+ void VisitParenListExpr(ParenListExpr *E);
+ void VisitUnaryOperator(UnaryOperator *E);
+ void VisitOffsetOfExpr(OffsetOfExpr *E);
+ void VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E);
+ void VisitArraySubscriptExpr(ArraySubscriptExpr *E);
+ void VisitCallExpr(CallExpr *E);
+ void VisitMemberExpr(MemberExpr *E);
+ void VisitCastExpr(CastExpr *E);
+ void VisitBinaryOperator(BinaryOperator *E);
+ void VisitCompoundAssignOperator(CompoundAssignOperator *E);
+ void VisitConditionalOperator(ConditionalOperator *E);
+ void VisitImplicitCastExpr(ImplicitCastExpr *E);
+ void VisitExplicitCastExpr(ExplicitCastExpr *E);
+ void VisitCStyleCastExpr(CStyleCastExpr *E);
+ void VisitCompoundLiteralExpr(CompoundLiteralExpr *E);
+ void VisitExtVectorElementExpr(ExtVectorElementExpr *E);
+ void VisitInitListExpr(InitListExpr *E);
+ void VisitDesignatedInitExpr(DesignatedInitExpr *E);
+ void VisitImplicitValueInitExpr(ImplicitValueInitExpr *E);
+ void VisitVAArgExpr(VAArgExpr *E);
+ void VisitAddrLabelExpr(AddrLabelExpr *E);
+ void VisitStmtExpr(StmtExpr *E);
+ void VisitTypesCompatibleExpr(TypesCompatibleExpr *E);
+ void VisitChooseExpr(ChooseExpr *E);
+ void VisitGNUNullExpr(GNUNullExpr *E);
+ void VisitShuffleVectorExpr(ShuffleVectorExpr *E);
+ void VisitBlockExpr(BlockExpr *E);
+ void VisitBlockDeclRefExpr(BlockDeclRefExpr *E);
+
+ // Objective-C Expressions
+ void VisitObjCStringLiteral(ObjCStringLiteral *E);
+ void VisitObjCEncodeExpr(ObjCEncodeExpr *E);
+ void VisitObjCSelectorExpr(ObjCSelectorExpr *E);
+ void VisitObjCProtocolExpr(ObjCProtocolExpr *E);
+ void VisitObjCIvarRefExpr(ObjCIvarRefExpr *E);
+ void VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E);
+ void VisitObjCImplicitSetterGetterRefExpr(
+ ObjCImplicitSetterGetterRefExpr *E);
+ void VisitObjCMessageExpr(ObjCMessageExpr *E);
+ void VisitObjCSuperExpr(ObjCSuperExpr *E);
+ void VisitObjCIsaExpr(ObjCIsaExpr *E);
+
+ // Objective-C Statements
+ void VisitObjCForCollectionStmt(ObjCForCollectionStmt *);
+ void VisitObjCAtCatchStmt(ObjCAtCatchStmt *);
+ void VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *);
+ void VisitObjCAtTryStmt(ObjCAtTryStmt *);
+ void VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *);
+ void VisitObjCAtThrowStmt(ObjCAtThrowStmt *);
+
+ // C++ Statements
+ void VisitCXXCatchStmt(CXXCatchStmt *S);
+ void VisitCXXTryStmt(CXXTryStmt *S);
+
+ void VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E);
+ void VisitCXXMemberCallExpr(CXXMemberCallExpr *E);
+ void VisitCXXConstructExpr(CXXConstructExpr *E);
+ void VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E);
+ void VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
+ void VisitCXXStaticCastExpr(CXXStaticCastExpr *E);
+ void VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E);
+ void VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E);
+ void VisitCXXConstCastExpr(CXXConstCastExpr *E);
+ void VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E);
+ void VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E);
+ void VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E);
+ void VisitCXXTypeidExpr(CXXTypeidExpr *E);
+ void VisitCXXThisExpr(CXXThisExpr *E);
+ void VisitCXXThrowExpr(CXXThrowExpr *E);
+ void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E);
+ void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E);
+ void VisitCXXBindReferenceExpr(CXXBindReferenceExpr *E);
+
+ void VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E);
+ void VisitCXXNewExpr(CXXNewExpr *E);
+ void VisitCXXDeleteExpr(CXXDeleteExpr *E);
+ void VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E);
+
+ void VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E);
+ void VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E);
+ void VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E);
+ void VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E);
+
+ void VisitOverloadExpr(OverloadExpr *E);
+ void VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E);
+ void VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E);
+
+ void VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E);
+ };
+}
+
+void PCHStmtWriter::
+AddExplicitTemplateArgumentList(const ExplicitTemplateArgumentList &Args) {
+ Writer.AddSourceLocation(Args.LAngleLoc, Record);
+ Writer.AddSourceLocation(Args.RAngleLoc, Record);
+ for (unsigned i=0; i != Args.NumTemplateArgs; ++i)
+ Writer.AddTemplateArgumentLoc(Args.getTemplateArgs()[i], Record);
+}
+
+void PCHStmtWriter::VisitStmt(Stmt *S) {
+}
+
+void PCHStmtWriter::VisitNullStmt(NullStmt *S) {
+ VisitStmt(S);
+ Writer.AddSourceLocation(S->getSemiLoc(), Record);
+ Code = pch::STMT_NULL;
+}
+
+void PCHStmtWriter::VisitCompoundStmt(CompoundStmt *S) {
+ VisitStmt(S);
+ Record.push_back(S->size());
+ for (CompoundStmt::body_iterator CS = S->body_begin(), CSEnd = S->body_end();
+ CS != CSEnd; ++CS)
+ Writer.AddStmt(*CS);
+ Writer.AddSourceLocation(S->getLBracLoc(), Record);
+ Writer.AddSourceLocation(S->getRBracLoc(), Record);
+ Code = pch::STMT_COMPOUND;
+}
+
+void PCHStmtWriter::VisitSwitchCase(SwitchCase *S) {
+ VisitStmt(S);
+ Record.push_back(Writer.getSwitchCaseID(S));
+}
+
+void PCHStmtWriter::VisitCaseStmt(CaseStmt *S) {
+ VisitSwitchCase(S);
+ Writer.AddStmt(S->getLHS());
+ Writer.AddStmt(S->getRHS());
+ Writer.AddStmt(S->getSubStmt());
+ Writer.AddSourceLocation(S->getCaseLoc(), Record);
+ Writer.AddSourceLocation(S->getEllipsisLoc(), Record);
+ Writer.AddSourceLocation(S->getColonLoc(), Record);
+ Code = pch::STMT_CASE;
+}
+
+void PCHStmtWriter::VisitDefaultStmt(DefaultStmt *S) {
+ VisitSwitchCase(S);
+ Writer.AddStmt(S->getSubStmt());
+ Writer.AddSourceLocation(S->getDefaultLoc(), Record);
+ Writer.AddSourceLocation(S->getColonLoc(), Record);
+ Code = pch::STMT_DEFAULT;
+}
+
+void PCHStmtWriter::VisitLabelStmt(LabelStmt *S) {
+ VisitStmt(S);
+ Writer.AddIdentifierRef(S->getID(), Record);
+ Writer.AddStmt(S->getSubStmt());
+ Writer.AddSourceLocation(S->getIdentLoc(), Record);
+ Record.push_back(Writer.GetLabelID(S));
+ Code = pch::STMT_LABEL;
+}
+
+void PCHStmtWriter::VisitIfStmt(IfStmt *S) {
+ VisitStmt(S);
+ Writer.AddDeclRef(S->getConditionVariable(), Record);
+ Writer.AddStmt(S->getCond());
+ Writer.AddStmt(S->getThen());
+ Writer.AddStmt(S->getElse());
+ Writer.AddSourceLocation(S->getIfLoc(), Record);
+ Writer.AddSourceLocation(S->getElseLoc(), Record);
+ Code = pch::STMT_IF;
+}
+
+void PCHStmtWriter::VisitSwitchStmt(SwitchStmt *S) {
+ VisitStmt(S);
+ Writer.AddDeclRef(S->getConditionVariable(), Record);
+ Writer.AddStmt(S->getCond());
+ Writer.AddStmt(S->getBody());
+ Writer.AddSourceLocation(S->getSwitchLoc(), Record);
+ for (SwitchCase *SC = S->getSwitchCaseList(); SC;
+ SC = SC->getNextSwitchCase())
+ Record.push_back(Writer.RecordSwitchCaseID(SC));
+ Code = pch::STMT_SWITCH;
+}
+
+void PCHStmtWriter::VisitWhileStmt(WhileStmt *S) {
+ VisitStmt(S);
+ Writer.AddDeclRef(S->getConditionVariable(), Record);
+ Writer.AddStmt(S->getCond());
+ Writer.AddStmt(S->getBody());
+ Writer.AddSourceLocation(S->getWhileLoc(), Record);
+ Code = pch::STMT_WHILE;
+}
+
+void PCHStmtWriter::VisitDoStmt(DoStmt *S) {
+ VisitStmt(S);
+ Writer.AddStmt(S->getCond());
+ Writer.AddStmt(S->getBody());
+ Writer.AddSourceLocation(S->getDoLoc(), Record);
+ Writer.AddSourceLocation(S->getWhileLoc(), Record);
+ Writer.AddSourceLocation(S->getRParenLoc(), Record);
+ Code = pch::STMT_DO;
+}
+
+void PCHStmtWriter::VisitForStmt(ForStmt *S) {
+ VisitStmt(S);
+ Writer.AddStmt(S->getInit());
+ Writer.AddStmt(S->getCond());
+ Writer.AddDeclRef(S->getConditionVariable(), Record);
+ Writer.AddStmt(S->getInc());
+ Writer.AddStmt(S->getBody());
+ Writer.AddSourceLocation(S->getForLoc(), Record);
+ Writer.AddSourceLocation(S->getLParenLoc(), Record);
+ Writer.AddSourceLocation(S->getRParenLoc(), Record);
+ Code = pch::STMT_FOR;
+}
+
+void PCHStmtWriter::VisitGotoStmt(GotoStmt *S) {
+ VisitStmt(S);
+ Record.push_back(Writer.GetLabelID(S->getLabel()));
+ Writer.AddSourceLocation(S->getGotoLoc(), Record);
+ Writer.AddSourceLocation(S->getLabelLoc(), Record);
+ Code = pch::STMT_GOTO;
+}
+
+void PCHStmtWriter::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
+ VisitStmt(S);
+ Writer.AddSourceLocation(S->getGotoLoc(), Record);
+ Writer.AddSourceLocation(S->getStarLoc(), Record);
+ Writer.AddStmt(S->getTarget());
+ Code = pch::STMT_INDIRECT_GOTO;
+}
+
+void PCHStmtWriter::VisitContinueStmt(ContinueStmt *S) {
+ VisitStmt(S);
+ Writer.AddSourceLocation(S->getContinueLoc(), Record);
+ Code = pch::STMT_CONTINUE;
+}
+
+void PCHStmtWriter::VisitBreakStmt(BreakStmt *S) {
+ VisitStmt(S);
+ Writer.AddSourceLocation(S->getBreakLoc(), Record);
+ Code = pch::STMT_BREAK;
+}
+
+void PCHStmtWriter::VisitReturnStmt(ReturnStmt *S) {
+ VisitStmt(S);
+ Writer.AddStmt(S->getRetValue());
+ Writer.AddSourceLocation(S->getReturnLoc(), Record);
+ Writer.AddDeclRef(S->getNRVOCandidate(), Record);
+ Code = pch::STMT_RETURN;
+}
+
+void PCHStmtWriter::VisitDeclStmt(DeclStmt *S) {
+ VisitStmt(S);
+ Writer.AddSourceLocation(S->getStartLoc(), Record);
+ Writer.AddSourceLocation(S->getEndLoc(), Record);
+ DeclGroupRef DG = S->getDeclGroup();
+ for (DeclGroupRef::iterator D = DG.begin(), DEnd = DG.end(); D != DEnd; ++D)
+ Writer.AddDeclRef(*D, Record);
+ Code = pch::STMT_DECL;
+}
+
+void PCHStmtWriter::VisitAsmStmt(AsmStmt *S) {
+ VisitStmt(S);
+ Record.push_back(S->getNumOutputs());
+ Record.push_back(S->getNumInputs());
+ Record.push_back(S->getNumClobbers());
+ Writer.AddSourceLocation(S->getAsmLoc(), Record);
+ Writer.AddSourceLocation(S->getRParenLoc(), Record);
+ Record.push_back(S->isVolatile());
+ Record.push_back(S->isSimple());
+ Record.push_back(S->isMSAsm());
+ Writer.AddStmt(S->getAsmString());
+
+ // Outputs
+ for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
+ Writer.AddIdentifierRef(S->getOutputIdentifier(I), Record);
+ Writer.AddStmt(S->getOutputConstraintLiteral(I));
+ Writer.AddStmt(S->getOutputExpr(I));
+ }
+
+ // Inputs
+ for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
+ Writer.AddIdentifierRef(S->getInputIdentifier(I), Record);
+ Writer.AddStmt(S->getInputConstraintLiteral(I));
+ Writer.AddStmt(S->getInputExpr(I));
+ }
+
+ // Clobbers
+ for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
+ Writer.AddStmt(S->getClobber(I));
+
+ Code = pch::STMT_ASM;
+}
+
+void PCHStmtWriter::VisitExpr(Expr *E) {
+ VisitStmt(E);
+ Writer.AddTypeRef(E->getType(), Record);
+ Record.push_back(E->isTypeDependent());
+ Record.push_back(E->isValueDependent());
+}
+
+void PCHStmtWriter::VisitPredefinedExpr(PredefinedExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Record.push_back(E->getIdentType()); // FIXME: stable encoding
+ Code = pch::EXPR_PREDEFINED;
+}
+
+void PCHStmtWriter::VisitDeclRefExpr(DeclRefExpr *E) {
+ VisitExpr(E);
+
+ Record.push_back(E->hasQualifier());
+ unsigned NumTemplateArgs = E->getNumTemplateArgs();
+ assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgumentList() &&
+ "Template args list with no args ?");
+ Record.push_back(NumTemplateArgs);
+
+ if (E->hasQualifier()) {
+ Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+ Writer.AddSourceRange(E->getQualifierRange(), Record);
+ }
+
+ if (NumTemplateArgs)
+ AddExplicitTemplateArgumentList(*E->getExplicitTemplateArgumentList());
+
+ Writer.AddDeclRef(E->getDecl(), Record);
+ // FIXME: write DeclarationNameLoc.
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Code = pch::EXPR_DECL_REF;
+}
+
+void PCHStmtWriter::VisitIntegerLiteral(IntegerLiteral *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Writer.AddAPInt(E->getValue(), Record);
+ Code = pch::EXPR_INTEGER_LITERAL;
+}
+
+void PCHStmtWriter::VisitFloatingLiteral(FloatingLiteral *E) {
+ VisitExpr(E);
+ Writer.AddAPFloat(E->getValue(), Record);
+ Record.push_back(E->isExact());
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Code = pch::EXPR_FLOATING_LITERAL;
+}
+
+void PCHStmtWriter::VisitImaginaryLiteral(ImaginaryLiteral *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getSubExpr());
+ Code = pch::EXPR_IMAGINARY_LITERAL;
+}
+
+void PCHStmtWriter::VisitStringLiteral(StringLiteral *E) {
+ VisitExpr(E);
+ Record.push_back(E->getByteLength());
+ Record.push_back(E->getNumConcatenated());
+ Record.push_back(E->isWide());
+ // FIXME: String data should be stored as a blob at the end of the
+ // StringLiteral. However, we can't do so now because we have no
+ // provision for coping with abbreviations when we're jumping around
+ // the PCH file during deserialization.
+ Record.append(E->getString().begin(), E->getString().end());
+ for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
+ Writer.AddSourceLocation(E->getStrTokenLoc(I), Record);
+ Code = pch::EXPR_STRING_LITERAL;
+}
+
+void PCHStmtWriter::VisitCharacterLiteral(CharacterLiteral *E) {
+ VisitExpr(E);
+ Record.push_back(E->getValue());
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Record.push_back(E->isWide());
+ Code = pch::EXPR_CHARACTER_LITERAL;
+}
+
+void PCHStmtWriter::VisitParenExpr(ParenExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLParen(), Record);
+ Writer.AddSourceLocation(E->getRParen(), Record);
+ Writer.AddStmt(E->getSubExpr());
+ Code = pch::EXPR_PAREN;
+}
+
+void PCHStmtWriter::VisitParenListExpr(ParenListExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->NumExprs);
+ for (unsigned i=0; i != E->NumExprs; ++i)
+ Writer.AddStmt(E->Exprs[i]);
+ Writer.AddSourceLocation(E->LParenLoc, Record);
+ Writer.AddSourceLocation(E->RParenLoc, Record);
+ Code = pch::EXPR_PAREN_LIST;
+}
+
+void PCHStmtWriter::VisitUnaryOperator(UnaryOperator *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getSubExpr());
+ Record.push_back(E->getOpcode()); // FIXME: stable encoding
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Code = pch::EXPR_UNARY_OPERATOR;
+}
+
+void PCHStmtWriter::VisitOffsetOfExpr(OffsetOfExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumComponents());
+ Record.push_back(E->getNumExpressions());
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
+ for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
+ const OffsetOfExpr::OffsetOfNode &ON = E->getComponent(I);
+ Record.push_back(ON.getKind()); // FIXME: Stable encoding
+ Writer.AddSourceLocation(ON.getRange().getBegin(), Record);
+ Writer.AddSourceLocation(ON.getRange().getEnd(), Record);
+ switch (ON.getKind()) {
+ case OffsetOfExpr::OffsetOfNode::Array:
+ Record.push_back(ON.getArrayExprIndex());
+ break;
+
+ case OffsetOfExpr::OffsetOfNode::Field:
+ Writer.AddDeclRef(ON.getField(), Record);
+ break;
+
+ case OffsetOfExpr::OffsetOfNode::Identifier:
+ Writer.AddIdentifierRef(ON.getFieldName(), Record);
+ break;
+
+ case OffsetOfExpr::OffsetOfNode::Base:
+ Writer.AddCXXBaseSpecifier(*ON.getBase(), Record);
+ break;
+ }
+ }
+ for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
+ Writer.AddStmt(E->getIndexExpr(I));
+ Code = pch::EXPR_OFFSETOF;
+}
+
+void PCHStmtWriter::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->isSizeOf());
+ if (E->isArgumentType())
+ Writer.AddTypeSourceInfo(E->getArgumentTypeInfo(), Record);
+ else {
+ Record.push_back(0);
+ Writer.AddStmt(E->getArgumentExpr());
+ }
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_SIZEOF_ALIGN_OF;
+}
+
+void PCHStmtWriter::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getLHS());
+ Writer.AddStmt(E->getRHS());
+ Writer.AddSourceLocation(E->getRBracketLoc(), Record);
+ Code = pch::EXPR_ARRAY_SUBSCRIPT;
+}
+
+void PCHStmtWriter::VisitCallExpr(CallExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumArgs());
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Writer.AddStmt(E->getCallee());
+ for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
+ Arg != ArgEnd; ++Arg)
+ Writer.AddStmt(*Arg);
+ Code = pch::EXPR_CALL;
+}
+
+void PCHStmtWriter::VisitMemberExpr(MemberExpr *E) {
+ // Don't call VisitExpr, we'll write everything here.
+
+ Record.push_back(E->hasQualifier());
+ if (E->hasQualifier()) {
+ Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+ Writer.AddSourceRange(E->getQualifierRange(), Record);
+ }
+
+ unsigned NumTemplateArgs = E->getNumTemplateArgs();
+ assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgumentList() &&
+ "Template args list with no args ?");
+ Record.push_back(NumTemplateArgs);
+ if (NumTemplateArgs) {
+ Writer.AddSourceLocation(E->getLAngleLoc(), Record);
+ Writer.AddSourceLocation(E->getRAngleLoc(), Record);
+ for (unsigned i=0; i != NumTemplateArgs; ++i)
+ Writer.AddTemplateArgumentLoc(E->getTemplateArgs()[i], Record);
+ }
+
+ DeclAccessPair FoundDecl = E->getFoundDecl();
+ Writer.AddDeclRef(FoundDecl.getDecl(), Record);
+ Record.push_back(FoundDecl.getAccess());
+
+ Writer.AddTypeRef(E->getType(), Record);
+ Writer.AddStmt(E->getBase());
+ Writer.AddDeclRef(E->getMemberDecl(), Record);
+ // FIXME: write DeclarationNameLoc.
+ Writer.AddSourceLocation(E->getMemberLoc(), Record);
+ Record.push_back(E->isArrow());
+ Code = pch::EXPR_MEMBER;
+}
+
+void PCHStmtWriter::VisitObjCIsaExpr(ObjCIsaExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getBase());
+ Writer.AddSourceLocation(E->getIsaMemberLoc(), Record);
+ Record.push_back(E->isArrow());
+ Code = pch::EXPR_OBJC_ISA;
+}
+
+void PCHStmtWriter::VisitCastExpr(CastExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->path_size());
+ Writer.AddStmt(E->getSubExpr());
+ Record.push_back(E->getCastKind()); // FIXME: stable encoding
+
+ for (CastExpr::path_iterator
+ PI = E->path_begin(), PE = E->path_end(); PI != PE; ++PI)
+ Writer.AddCXXBaseSpecifier(**PI, Record);
+}
+
+void PCHStmtWriter::VisitBinaryOperator(BinaryOperator *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getLHS());
+ Writer.AddStmt(E->getRHS());
+ Record.push_back(E->getOpcode()); // FIXME: stable encoding
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Code = pch::EXPR_BINARY_OPERATOR;
+}
+
+void PCHStmtWriter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
+ VisitBinaryOperator(E);
+ Writer.AddTypeRef(E->getComputationLHSType(), Record);
+ Writer.AddTypeRef(E->getComputationResultType(), Record);
+ Code = pch::EXPR_COMPOUND_ASSIGN_OPERATOR;
+}
+
+void PCHStmtWriter::VisitConditionalOperator(ConditionalOperator *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getCond());
+ Writer.AddStmt(E->getLHS());
+ Writer.AddStmt(E->getRHS());
+ Writer.AddSourceLocation(E->getQuestionLoc(), Record);
+ Writer.AddSourceLocation(E->getColonLoc(), Record);
+ Code = pch::EXPR_CONDITIONAL_OPERATOR;
+}
+
+void PCHStmtWriter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
+ VisitCastExpr(E);
+ Record.push_back(E->getCategory());
+ Code = pch::EXPR_IMPLICIT_CAST;
+}
+
+void PCHStmtWriter::VisitExplicitCastExpr(ExplicitCastExpr *E) {
+ VisitCastExpr(E);
+ Writer.AddTypeSourceInfo(E->getTypeInfoAsWritten(), Record);
+}
+
+void PCHStmtWriter::VisitCStyleCastExpr(CStyleCastExpr *E) {
+ VisitExplicitCastExpr(E);
+ Writer.AddSourceLocation(E->getLParenLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_CSTYLE_CAST;
+}
+
+void PCHStmtWriter::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLParenLoc(), Record);
+ Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
+ Writer.AddStmt(E->getInitializer());
+ Record.push_back(E->isFileScope());
+ Code = pch::EXPR_COMPOUND_LITERAL;
+}
+
+void PCHStmtWriter::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getBase());
+ Writer.AddIdentifierRef(&E->getAccessor(), Record);
+ Writer.AddSourceLocation(E->getAccessorLoc(), Record);
+ Code = pch::EXPR_EXT_VECTOR_ELEMENT;
+}
+
+void PCHStmtWriter::VisitInitListExpr(InitListExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumInits());
+ for (unsigned I = 0, N = E->getNumInits(); I != N; ++I)
+ Writer.AddStmt(E->getInit(I));
+ Writer.AddStmt(E->getSyntacticForm());
+ Writer.AddSourceLocation(E->getLBraceLoc(), Record);
+ Writer.AddSourceLocation(E->getRBraceLoc(), Record);
+ Writer.AddDeclRef(E->getInitializedFieldInUnion(), Record);
+ Record.push_back(E->hadArrayRangeDesignator());
+ Code = pch::EXPR_INIT_LIST;
+}
+
+void PCHStmtWriter::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumSubExprs());
+ for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
+ Writer.AddStmt(E->getSubExpr(I));
+ Writer.AddSourceLocation(E->getEqualOrColonLoc(), Record);
+ Record.push_back(E->usesGNUSyntax());
+ for (DesignatedInitExpr::designators_iterator D = E->designators_begin(),
+ DEnd = E->designators_end();
+ D != DEnd; ++D) {
+ if (D->isFieldDesignator()) {
+ if (FieldDecl *Field = D->getField()) {
+ Record.push_back(pch::DESIG_FIELD_DECL);
+ Writer.AddDeclRef(Field, Record);
+ } else {
+ Record.push_back(pch::DESIG_FIELD_NAME);
+ Writer.AddIdentifierRef(D->getFieldName(), Record);
+ }
+ Writer.AddSourceLocation(D->getDotLoc(), Record);
+ Writer.AddSourceLocation(D->getFieldLoc(), Record);
+ } else if (D->isArrayDesignator()) {
+ Record.push_back(pch::DESIG_ARRAY);
+ Record.push_back(D->getFirstExprIndex());
+ Writer.AddSourceLocation(D->getLBracketLoc(), Record);
+ Writer.AddSourceLocation(D->getRBracketLoc(), Record);
+ } else {
+ assert(D->isArrayRangeDesignator() && "Unknown designator");
+ Record.push_back(pch::DESIG_ARRAY_RANGE);
+ Record.push_back(D->getFirstExprIndex());
+ Writer.AddSourceLocation(D->getLBracketLoc(), Record);
+ Writer.AddSourceLocation(D->getEllipsisLoc(), Record);
+ Writer.AddSourceLocation(D->getRBracketLoc(), Record);
+ }
+ }
+ Code = pch::EXPR_DESIGNATED_INIT;
+}
+
+void PCHStmtWriter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
+ VisitExpr(E);
+ Code = pch::EXPR_IMPLICIT_VALUE_INIT;
+}
+
+void PCHStmtWriter::VisitVAArgExpr(VAArgExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getSubExpr());
+ Writer.AddTypeSourceInfo(E->getWrittenTypeInfo(), Record);
+ Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_VA_ARG;
+}
+
+void PCHStmtWriter::VisitAddrLabelExpr(AddrLabelExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getAmpAmpLoc(), Record);
+ Writer.AddSourceLocation(E->getLabelLoc(), Record);
+ Record.push_back(Writer.GetLabelID(E->getLabel()));
+ Code = pch::EXPR_ADDR_LABEL;
+}
+
+void PCHStmtWriter::VisitStmtExpr(StmtExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getSubStmt());
+ Writer.AddSourceLocation(E->getLParenLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_STMT;
+}
+
+void PCHStmtWriter::VisitTypesCompatibleExpr(TypesCompatibleExpr *E) {
+ VisitExpr(E);
+ Writer.AddTypeSourceInfo(E->getArgTInfo1(), Record);
+ Writer.AddTypeSourceInfo(E->getArgTInfo2(), Record);
+ Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_TYPES_COMPATIBLE;
+}
+
+void PCHStmtWriter::VisitChooseExpr(ChooseExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getCond());
+ Writer.AddStmt(E->getLHS());
+ Writer.AddStmt(E->getRHS());
+ Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_CHOOSE;
+}
+
+void PCHStmtWriter::VisitGNUNullExpr(GNUNullExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getTokenLocation(), Record);
+ Code = pch::EXPR_GNU_NULL;
+}
+
+void PCHStmtWriter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumSubExprs());
+ for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
+ Writer.AddStmt(E->getExpr(I));
+ Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_SHUFFLE_VECTOR;
+}
+
+void PCHStmtWriter::VisitBlockExpr(BlockExpr *E) {
+ VisitExpr(E);
+ Writer.AddDeclRef(E->getBlockDecl(), Record);
+ Record.push_back(E->hasBlockDeclRefExprs());
+ Code = pch::EXPR_BLOCK;
+}
+
+void PCHStmtWriter::VisitBlockDeclRefExpr(BlockDeclRefExpr *E) {
+ VisitExpr(E);
+ Writer.AddDeclRef(E->getDecl(), Record);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Record.push_back(E->isByRef());
+ Record.push_back(E->isConstQualAdded());
+ Writer.AddStmt(E->getCopyConstructorExpr());
+ Code = pch::EXPR_BLOCK_DECL_REF;
+}
+
+//===----------------------------------------------------------------------===//
+// Objective-C Expressions and Statements.
+//===----------------------------------------------------------------------===//
+
+void PCHStmtWriter::VisitObjCStringLiteral(ObjCStringLiteral *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getString());
+ Writer.AddSourceLocation(E->getAtLoc(), Record);
+ Code = pch::EXPR_OBJC_STRING_LITERAL;
+}
+
+void PCHStmtWriter::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
+ VisitExpr(E);
+ Writer.AddTypeSourceInfo(E->getEncodedTypeSourceInfo(), Record);
+ Writer.AddSourceLocation(E->getAtLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_OBJC_ENCODE;
+}
+
+void PCHStmtWriter::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
+ VisitExpr(E);
+ Writer.AddSelectorRef(E->getSelector(), Record);
+ Writer.AddSourceLocation(E->getAtLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_OBJC_SELECTOR_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
+ VisitExpr(E);
+ Writer.AddDeclRef(E->getProtocol(), Record);
+ Writer.AddSourceLocation(E->getAtLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_OBJC_PROTOCOL_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
+ VisitExpr(E);
+ Writer.AddDeclRef(E->getDecl(), Record);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Writer.AddStmt(E->getBase());
+ Record.push_back(E->isArrow());
+ Record.push_back(E->isFreeIvar());
+ Code = pch::EXPR_OBJC_IVAR_REF_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
+ VisitExpr(E);
+ Writer.AddDeclRef(E->getProperty(), Record);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Writer.AddStmt(E->getBase());
+ Code = pch::EXPR_OBJC_PROPERTY_REF_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCImplicitSetterGetterRefExpr(
+ ObjCImplicitSetterGetterRefExpr *E) {
+ VisitExpr(E);
+ Writer.AddDeclRef(E->getGetterMethod(), Record);
+ Writer.AddDeclRef(E->getSetterMethod(), Record);
+
+ // NOTE: InterfaceDecl and Base are mutually exclusive.
+ Writer.AddDeclRef(E->getInterfaceDecl(), Record);
+ Writer.AddStmt(E->getBase());
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Writer.AddSourceLocation(E->getClassLoc(), Record);
+ Code = pch::EXPR_OBJC_KVC_REF_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCMessageExpr(ObjCMessageExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumArgs());
+ Record.push_back((unsigned)E->getReceiverKind()); // FIXME: stable encoding
+ switch (E->getReceiverKind()) {
+ case ObjCMessageExpr::Instance:
+ Writer.AddStmt(E->getInstanceReceiver());
+ break;
+
+ case ObjCMessageExpr::Class:
+ Writer.AddTypeSourceInfo(E->getClassReceiverTypeInfo(), Record);
+ break;
+
+ case ObjCMessageExpr::SuperClass:
+ case ObjCMessageExpr::SuperInstance:
+ Writer.AddTypeRef(E->getSuperType(), Record);
+ Writer.AddSourceLocation(E->getSuperLoc(), Record);
+ break;
+ }
+
+ if (E->getMethodDecl()) {
+ Record.push_back(1);
+ Writer.AddDeclRef(E->getMethodDecl(), Record);
+ } else {
+ Record.push_back(0);
+ Writer.AddSelectorRef(E->getSelector(), Record);
+ }
+
+ Writer.AddSourceLocation(E->getLeftLoc(), Record);
+ Writer.AddSourceLocation(E->getRightLoc(), Record);
+
+ for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
+ Arg != ArgEnd; ++Arg)
+ Writer.AddStmt(*Arg);
+ Code = pch::EXPR_OBJC_MESSAGE_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCSuperExpr(ObjCSuperExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLoc(), Record);
+ Code = pch::EXPR_OBJC_SUPER_EXPR;
+}
+
+void PCHStmtWriter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
+ VisitStmt(S);
+ Writer.AddStmt(S->getElement());
+ Writer.AddStmt(S->getCollection());
+ Writer.AddStmt(S->getBody());
+ Writer.AddSourceLocation(S->getForLoc(), Record);
+ Writer.AddSourceLocation(S->getRParenLoc(), Record);
+ Code = pch::STMT_OBJC_FOR_COLLECTION;
+}
+
+void PCHStmtWriter::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
+ Writer.AddStmt(S->getCatchBody());
+ Writer.AddDeclRef(S->getCatchParamDecl(), Record);
+ Writer.AddSourceLocation(S->getAtCatchLoc(), Record);
+ Writer.AddSourceLocation(S->getRParenLoc(), Record);
+ Code = pch::STMT_OBJC_CATCH;
+}
+
+void PCHStmtWriter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
+ Writer.AddStmt(S->getFinallyBody());
+ Writer.AddSourceLocation(S->getAtFinallyLoc(), Record);
+ Code = pch::STMT_OBJC_FINALLY;
+}
+
+void PCHStmtWriter::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
+ Record.push_back(S->getNumCatchStmts());
+ Record.push_back(S->getFinallyStmt() != 0);
+ Writer.AddStmt(S->getTryBody());
+ for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
+ Writer.AddStmt(S->getCatchStmt(I));
+ if (S->getFinallyStmt())
+ Writer.AddStmt(S->getFinallyStmt());
+ Writer.AddSourceLocation(S->getAtTryLoc(), Record);
+ Code = pch::STMT_OBJC_AT_TRY;
+}
+
+void PCHStmtWriter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
+ Writer.AddStmt(S->getSynchExpr());
+ Writer.AddStmt(S->getSynchBody());
+ Writer.AddSourceLocation(S->getAtSynchronizedLoc(), Record);
+ Code = pch::STMT_OBJC_AT_SYNCHRONIZED;
+}
+
+void PCHStmtWriter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
+ Writer.AddStmt(S->getThrowExpr());
+ Writer.AddSourceLocation(S->getThrowLoc(), Record);
+ Code = pch::STMT_OBJC_AT_THROW;
+}
+
+//===----------------------------------------------------------------------===//
+// C++ Expressions and Statements.
+//===----------------------------------------------------------------------===//
+
+void PCHStmtWriter::VisitCXXCatchStmt(CXXCatchStmt *S) {
+ VisitStmt(S);
+ Writer.AddSourceLocation(S->getCatchLoc(), Record);
+ Writer.AddDeclRef(S->getExceptionDecl(), Record);
+ Writer.AddStmt(S->getHandlerBlock());
+ Code = pch::STMT_CXX_CATCH;
+}
+
+void PCHStmtWriter::VisitCXXTryStmt(CXXTryStmt *S) {
+ VisitStmt(S);
+ Record.push_back(S->getNumHandlers());
+ Writer.AddSourceLocation(S->getTryLoc(), Record);
+ Writer.AddStmt(S->getTryBlock());
+ for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
+ Writer.AddStmt(S->getHandler(i));
+ Code = pch::STMT_CXX_TRY;
+}
+
+void PCHStmtWriter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
+ VisitCallExpr(E);
+ Record.push_back(E->getOperator());
+ Code = pch::EXPR_CXX_OPERATOR_CALL;
+}
+
+void PCHStmtWriter::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
+ VisitCallExpr(E);
+ Code = pch::EXPR_CXX_MEMBER_CALL;
+}
+
+void PCHStmtWriter::VisitCXXConstructExpr(CXXConstructExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumArgs());
+ for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
+ Writer.AddStmt(E->getArg(I));
+ Writer.AddDeclRef(E->getConstructor(), Record);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Record.push_back(E->isElidable());
+ Record.push_back(E->requiresZeroInitialization());
+ Record.push_back(E->getConstructionKind()); // FIXME: stable encoding
+ Code = pch::EXPR_CXX_CONSTRUCT;
+}
+
+void PCHStmtWriter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
+ VisitCXXConstructExpr(E);
+ Writer.AddSourceLocation(E->getTypeBeginLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_CXX_TEMPORARY_OBJECT;
+}
+
+void PCHStmtWriter::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
+ VisitExplicitCastExpr(E);
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+}
+
+void PCHStmtWriter::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
+ VisitCXXNamedCastExpr(E);
+ Code = pch::EXPR_CXX_STATIC_CAST;
+}
+
+void PCHStmtWriter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
+ VisitCXXNamedCastExpr(E);
+ Code = pch::EXPR_CXX_DYNAMIC_CAST;
+}
+
+void PCHStmtWriter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
+ VisitCXXNamedCastExpr(E);
+ Code = pch::EXPR_CXX_REINTERPRET_CAST;
+}
+
+void PCHStmtWriter::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
+ VisitCXXNamedCastExpr(E);
+ Code = pch::EXPR_CXX_CONST_CAST;
+}
+
+void PCHStmtWriter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
+ VisitExplicitCastExpr(E);
+ Writer.AddSourceLocation(E->getTypeBeginLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_CXX_FUNCTIONAL_CAST;
+}
+
+void PCHStmtWriter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getValue());
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Code = pch::EXPR_CXX_BOOL_LITERAL;
+}
+
+void PCHStmtWriter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Code = pch::EXPR_CXX_NULL_PTR_LITERAL;
+}
+
+void PCHStmtWriter::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceRange(E->getSourceRange(), Record);
+ if (E->isTypeOperand()) {
+ Writer.AddTypeSourceInfo(E->getTypeOperandSourceInfo(), Record);
+ Code = pch::EXPR_CXX_TYPEID_TYPE;
+ } else {
+ Writer.AddStmt(E->getExprOperand());
+ Code = pch::EXPR_CXX_TYPEID_EXPR;
+ }
+}
+
+void PCHStmtWriter::VisitCXXThisExpr(CXXThisExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Record.push_back(E->isImplicit());
+ Code = pch::EXPR_CXX_THIS;
+}
+
+void PCHStmtWriter::VisitCXXThrowExpr(CXXThrowExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getThrowLoc(), Record);
+ Writer.AddStmt(E->getSubExpr());
+ Code = pch::EXPR_CXX_THROW;
+}
+
+void PCHStmtWriter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
+ VisitExpr(E);
+
+ bool HasOtherExprStored = E->Param.getInt();
+ // Store these first, the reader reads them before creation.
+ Record.push_back(HasOtherExprStored);
+ if (HasOtherExprStored)
+ Writer.AddStmt(E->getExpr());
+ Writer.AddDeclRef(E->getParam(), Record);
+ Writer.AddSourceLocation(E->getUsedLocation(), Record);
+
+ Code = pch::EXPR_CXX_DEFAULT_ARG;
+}
+
+void PCHStmtWriter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
+ VisitExpr(E);
+ Writer.AddCXXTemporary(E->getTemporary(), Record);
+ Writer.AddStmt(E->getSubExpr());
+ Code = pch::EXPR_CXX_BIND_TEMPORARY;
+}
+
+void PCHStmtWriter::VisitCXXBindReferenceExpr(CXXBindReferenceExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getSubExpr());
+ Record.push_back(E->extendsLifetime());
+ Record.push_back(E->requiresTemporaryCopy());
+ Code = pch::EXPR_CXX_BIND_REFERENCE;
+}
+
+void PCHStmtWriter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
+ VisitExpr(E);
+ Writer.AddSourceLocation(E->getTypeBeginLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_CXX_SCALAR_VALUE_INIT;
+}
+
+void PCHStmtWriter::VisitCXXNewExpr(CXXNewExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->isGlobalNew());
+ Record.push_back(E->hasInitializer());
+ Record.push_back(E->isArray());
+ Record.push_back(E->getNumPlacementArgs());
+ Record.push_back(E->getNumConstructorArgs());
+ Writer.AddDeclRef(E->getOperatorNew(), Record);
+ Writer.AddDeclRef(E->getOperatorDelete(), Record);
+ Writer.AddDeclRef(E->getConstructor(), Record);
+ Writer.AddSourceRange(E->getTypeIdParens(), Record);
+ Writer.AddSourceLocation(E->getStartLoc(), Record);
+ Writer.AddSourceLocation(E->getEndLoc(), Record);
+ for (CXXNewExpr::arg_iterator I = E->raw_arg_begin(), e = E->raw_arg_end();
+ I != e; ++I)
+ Writer.AddStmt(*I);
+
+ Code = pch::EXPR_CXX_NEW;
+}
+
+void PCHStmtWriter::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->isGlobalDelete());
+ Record.push_back(E->isArrayForm());
+ Writer.AddDeclRef(E->getOperatorDelete(), Record);
+ Writer.AddStmt(E->getArgument());
+ Writer.AddSourceLocation(E->getSourceRange().getBegin(), Record);
+
+ Code = pch::EXPR_CXX_DELETE;
+}
+
+void PCHStmtWriter::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
+ VisitExpr(E);
+
+ Writer.AddStmt(E->getBase());
+ Record.push_back(E->isArrow());
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+ Writer.AddSourceRange(E->getQualifierRange(), Record);
+ Writer.AddTypeSourceInfo(E->getScopeTypeInfo(), Record);
+ Writer.AddSourceLocation(E->getColonColonLoc(), Record);
+ Writer.AddSourceLocation(E->getTildeLoc(), Record);
+
+ // PseudoDestructorTypeStorage.
+ Writer.AddIdentifierRef(E->getDestroyedTypeIdentifier(), Record);
+ if (E->getDestroyedTypeIdentifier())
+ Writer.AddSourceLocation(E->getDestroyedTypeLoc(), Record);
+ else
+ Writer.AddTypeSourceInfo(E->getDestroyedTypeInfo(), Record);
+
+ Code = pch::EXPR_CXX_PSEUDO_DESTRUCTOR;
+}
+
+void PCHStmtWriter::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumTemporaries());
+ for (unsigned i = 0, e = E->getNumTemporaries(); i != e; ++i)
+ Writer.AddCXXTemporary(E->getTemporary(i), Record);
+
+ Writer.AddStmt(E->getSubExpr());
+ Code = pch::EXPR_CXX_EXPR_WITH_TEMPORARIES;
+}
+
+void
+PCHStmtWriter::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
+ VisitExpr(E);
+
+ // Don't emit anything here, NumTemplateArgs must be emitted first.
+
+ if (E->hasExplicitTemplateArgs()) {
+ const ExplicitTemplateArgumentList &Args
+ = *E->getExplicitTemplateArgumentList();
+ assert(Args.NumTemplateArgs &&
+ "Num of template args was zero! PCH reading will mess up!");
+ Record.push_back(Args.NumTemplateArgs);
+ AddExplicitTemplateArgumentList(Args);
+ } else {
+ Record.push_back(0);
+ }
+
+ if (!E->isImplicitAccess())
+ Writer.AddStmt(E->getBase());
+ else
+ Writer.AddStmt(0);
+ Writer.AddTypeRef(E->getBaseType(), Record);
+ Record.push_back(E->isArrow());
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+ Writer.AddSourceRange(E->getQualifierRange(), Record);
+ Writer.AddDeclRef(E->getFirstQualifierFoundInScope(), Record);
+ // FIXME: write whole DeclarationNameInfo.
+ Writer.AddDeclarationName(E->getMember(), Record);
+ Writer.AddSourceLocation(E->getMemberLoc(), Record);
+ Code = pch::EXPR_CXX_DEPENDENT_SCOPE_MEMBER;
+}
+
+void
+PCHStmtWriter::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
+ VisitExpr(E);
+
+ // Don't emit anything here, NumTemplateArgs must be emitted first.
+
+ if (E->hasExplicitTemplateArgs()) {
+ const ExplicitTemplateArgumentList &Args = E->getExplicitTemplateArgs();
+ assert(Args.NumTemplateArgs &&
+ "Num of template args was zero! PCH reading will mess up!");
+ Record.push_back(Args.NumTemplateArgs);
+ AddExplicitTemplateArgumentList(Args);
+ } else {
+ Record.push_back(0);
+ }
+
+ // FIXME: write whole DeclarationNameInfo.
+ Writer.AddDeclarationName(E->getDeclName(), Record);
+ Writer.AddSourceLocation(E->getLocation(), Record);
+ Writer.AddSourceRange(E->getQualifierRange(), Record);
+ Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+ Code = pch::EXPR_CXX_DEPENDENT_SCOPE_DECL_REF;
+}
+
+void
+PCHStmtWriter::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->arg_size());
+ for (CXXUnresolvedConstructExpr::arg_iterator
+ ArgI = E->arg_begin(), ArgE = E->arg_end(); ArgI != ArgE; ++ArgI)
+ Writer.AddStmt(*ArgI);
+ Writer.AddSourceLocation(E->getTypeBeginLoc(), Record);
+ Writer.AddTypeRef(E->getTypeAsWritten(), Record);
+ Writer.AddSourceLocation(E->getLParenLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = pch::EXPR_CXX_UNRESOLVED_CONSTRUCT;
+}
+
+void PCHStmtWriter::VisitOverloadExpr(OverloadExpr *E) {
+ VisitExpr(E);
+
+ // Don't emit anything here, NumTemplateArgs must be emitted first.
+
+ if (E->hasExplicitTemplateArgs()) {
+ const ExplicitTemplateArgumentList &Args = E->getExplicitTemplateArgs();
+ assert(Args.NumTemplateArgs &&
+ "Num of template args was zero! PCH reading will mess up!");
+ Record.push_back(Args.NumTemplateArgs);
+ AddExplicitTemplateArgumentList(Args);
+ } else {
+ Record.push_back(0);
+ }
+
+ Record.push_back(E->getNumDecls());
+ for (OverloadExpr::decls_iterator
+ OvI = E->decls_begin(), OvE = E->decls_end(); OvI != OvE; ++OvI) {
+ Writer.AddDeclRef(OvI.getDecl(), Record);
+ Record.push_back(OvI.getAccess());
+ }
+
+ // FIXME: write whole DeclarationNameInfo.
+ Writer.AddDeclarationName(E->getName(), Record);
+ Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+ Writer.AddSourceRange(E->getQualifierRange(), Record);
+ Writer.AddSourceLocation(E->getNameLoc(), Record);
+}
+
+void PCHStmtWriter::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
+ VisitOverloadExpr(E);
+ Record.push_back(E->isArrow());
+ Record.push_back(E->hasUnresolvedUsing());
+ Writer.AddStmt(!E->isImplicitAccess() ? E->getBase() : 0);
+ Writer.AddTypeRef(E->getBaseType(), Record);
+ Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+ Code = pch::EXPR_CXX_UNRESOLVED_MEMBER;
+}
+
+void PCHStmtWriter::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
+ VisitOverloadExpr(E);
+ Record.push_back(E->requiresADL());
+ Record.push_back(E->isOverloaded());
+ Writer.AddDeclRef(E->getNamingClass(), Record);
+ Code = pch::EXPR_CXX_UNRESOLVED_LOOKUP;
+}
+
+void PCHStmtWriter::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getTrait());
+ Writer.AddSourceRange(E->getSourceRange(), Record);
+ Writer.AddTypeRef(E->getQueriedType(), Record);
+ Code = pch::EXPR_CXX_UNARY_TYPE_TRAIT;
+}
+
+//===----------------------------------------------------------------------===//
+// PCHWriter Implementation
+//===----------------------------------------------------------------------===//
+
+unsigned PCHWriter::RecordSwitchCaseID(SwitchCase *S) {
+ assert(SwitchCaseIDs.find(S) == SwitchCaseIDs.end() &&
+ "SwitchCase recorded twice");
+ unsigned NextID = SwitchCaseIDs.size();
+ SwitchCaseIDs[S] = NextID;
+ return NextID;
+}
+
+unsigned PCHWriter::getSwitchCaseID(SwitchCase *S) {
+ assert(SwitchCaseIDs.find(S) != SwitchCaseIDs.end() &&
+ "SwitchCase hasn't been seen yet");
+ return SwitchCaseIDs[S];
+}
+
+/// \brief Retrieve the ID for the given label statement, which may
+/// or may not have been emitted yet.
+unsigned PCHWriter::GetLabelID(LabelStmt *S) {
+ std::map<LabelStmt *, unsigned>::iterator Pos = LabelIDs.find(S);
+ if (Pos != LabelIDs.end())
+ return Pos->second;
+
+ unsigned NextID = LabelIDs.size();
+ LabelIDs[S] = NextID;
+ return NextID;
+}
+
+/// \brief Write the given substatement or subexpression to the
+/// bitstream.
+void PCHWriter::WriteSubStmt(Stmt *S) {
+ RecordData Record;
+ PCHStmtWriter Writer(*this, Record);
+ ++NumStatements;
+
+ if (!S) {
+ Stream.EmitRecord(pch::STMT_NULL_PTR, Record);
+ return;
+ }
+
+ // Redirect PCHWriter::AddStmt to collect sub stmts.
+ llvm::SmallVector<Stmt *, 16> SubStmts;
+ CollectedStmts = &SubStmts;
+
+ Writer.Code = pch::STMT_NULL_PTR;
+ Writer.Visit(S);
+
+#ifndef NDEBUG
+ if (Writer.Code == pch::STMT_NULL_PTR) {
+ SourceManager &SrcMgr
+ = DeclIDs.begin()->first->getASTContext().getSourceManager();
+ S->dump(SrcMgr);
+ assert(0 && "Unhandled sub statement writing PCH file");
+ }
+#endif
+
+ // Revert PCHWriter::AddStmt.
+ CollectedStmts = &StmtsToEmit;
+
+ // Write the sub stmts in reverse order, last to first. When reading them back
+ // we will read them in correct order by "pop"ing them from the Stmts stack.
+ // This simplifies reading and allows to store a variable number of sub stmts
+ // without knowing it in advance.
+ while (!SubStmts.empty())
+ WriteSubStmt(SubStmts.pop_back_val());
+
+ Stream.EmitRecord(Writer.Code, Record);
+}
+
+/// \brief Flush all of the statements that have been added to the
+/// queue via AddStmt().
+void PCHWriter::FlushStmts() {
+ RecordData Record;
+
+ for (unsigned I = 0, N = StmtsToEmit.size(); I != N; ++I) {
+ WriteSubStmt(StmtsToEmit[I]);
+
+ assert(N == StmtsToEmit.size() &&
+ "Substatement writen via AddStmt rather than WriteSubStmt!");
+
+ // Note that we are at the end of a full expression. Any
+ // expression records that follow this one are part of a different
+ // expression.
+ Stream.EmitRecord(pch::STMT_STOP, Record);
+ }
+
+ StmtsToEmit.clear();
+}
OpenPOWER on IntegriCloud