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-rw-r--r--clang/lib/AST/StmtDumper.cpp486
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diff --git a/clang/lib/AST/StmtDumper.cpp b/clang/lib/AST/StmtDumper.cpp
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+//===--- StmtDumper.cpp - Dumping implementation for Stmt ASTs ------------===//
+//
+// 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 Stmt::dump/Stmt::print methods, which dump out the
+// AST in a form that exposes type details and other fields.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/StmtVisitor.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclObjC.h"
+#include "clang/AST/ExprCXX.h"
+#include "clang/Basic/IdentifierTable.h"
+#include "clang/Basic/SourceManager.h"
+#include "llvm/Support/Compiler.h"
+#include <cstdio>
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// StmtDumper Visitor
+//===----------------------------------------------------------------------===//
+
+namespace {
+ class VISIBILITY_HIDDEN StmtDumper : public StmtVisitor<StmtDumper> {
+ SourceManager *SM;
+ FILE *F;
+ unsigned IndentLevel;
+
+ /// MaxDepth - When doing a normal dump (not dumpAll) we only want to dump
+ /// the first few levels of an AST. This keeps track of how many ast levels
+ /// are left.
+ unsigned MaxDepth;
+
+ /// LastLocFilename/LastLocLine - Keep track of the last location we print
+ /// out so that we can print out deltas from then on out.
+ const char *LastLocFilename;
+ unsigned LastLocLine;
+ public:
+ StmtDumper(SourceManager *sm, FILE *f, unsigned maxDepth)
+ : SM(sm), F(f), IndentLevel(0-1), MaxDepth(maxDepth) {
+ LastLocFilename = "";
+ LastLocLine = ~0U;
+ }
+
+ void DumpSubTree(Stmt *S) {
+ // Prune the recursion if not using dump all.
+ if (MaxDepth == 0) return;
+
+ ++IndentLevel;
+ if (S) {
+ if (DeclStmt* DS = dyn_cast<DeclStmt>(S))
+ VisitDeclStmt(DS);
+ else {
+ Visit(S);
+
+ // Print out children.
+ Stmt::child_iterator CI = S->child_begin(), CE = S->child_end();
+ if (CI != CE) {
+ while (CI != CE) {
+ fprintf(F, "\n");
+ DumpSubTree(*CI++);
+ }
+ }
+ fprintf(F, ")");
+ }
+ } else {
+ Indent();
+ fprintf(F, "<<<NULL>>>");
+ }
+ --IndentLevel;
+ }
+
+ void DumpDeclarator(Decl *D);
+
+ void Indent() const {
+ for (int i = 0, e = IndentLevel; i < e; ++i)
+ fprintf(F, " ");
+ }
+
+ void DumpType(QualType T) {
+ fprintf(F, "'%s'", T.getAsString().c_str());
+
+ // If the type is directly a typedef, strip off typedefness to give at
+ // least one level of concreteness.
+ if (TypedefType *TDT = dyn_cast<TypedefType>(T))
+ fprintf(F, ":'%s'", TDT->LookThroughTypedefs().getAsString().c_str());
+ }
+ void DumpStmt(const Stmt *Node) {
+ Indent();
+ fprintf(F, "(%s %p", Node->getStmtClassName(), (void*)Node);
+ DumpSourceRange(Node);
+ }
+ void DumpExpr(const Expr *Node) {
+ DumpStmt(Node);
+ fprintf(F, " ");
+ DumpType(Node->getType());
+ }
+ void DumpSourceRange(const Stmt *Node);
+ void DumpLocation(SourceLocation Loc);
+
+ // Stmts.
+ void VisitStmt(Stmt *Node);
+ void VisitDeclStmt(DeclStmt *Node);
+ void VisitLabelStmt(LabelStmt *Node);
+ void VisitGotoStmt(GotoStmt *Node);
+
+ // Exprs
+ void VisitExpr(Expr *Node);
+ void VisitDeclRefExpr(DeclRefExpr *Node);
+ void VisitPreDefinedExpr(PreDefinedExpr *Node);
+ void VisitCharacterLiteral(CharacterLiteral *Node);
+ void VisitIntegerLiteral(IntegerLiteral *Node);
+ void VisitFloatingLiteral(FloatingLiteral *Node);
+ void VisitStringLiteral(StringLiteral *Str);
+ void VisitUnaryOperator(UnaryOperator *Node);
+ void VisitSizeOfAlignOfTypeExpr(SizeOfAlignOfTypeExpr *Node);
+ void VisitMemberExpr(MemberExpr *Node);
+ void VisitOCUVectorElementExpr(OCUVectorElementExpr *Node);
+ void VisitBinaryOperator(BinaryOperator *Node);
+ void VisitCompoundAssignOperator(CompoundAssignOperator *Node);
+ void VisitAddrLabelExpr(AddrLabelExpr *Node);
+ void VisitTypesCompatibleExpr(TypesCompatibleExpr *Node);
+
+ // C++
+ void VisitCXXCastExpr(CXXCastExpr *Node);
+ void VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *Node);
+
+ // ObjC
+ void VisitObjCEncodeExpr(ObjCEncodeExpr *Node);
+ void VisitObjCMessageExpr(ObjCMessageExpr* Node);
+ void VisitObjCSelectorExpr(ObjCSelectorExpr *Node);
+ void VisitObjCProtocolExpr(ObjCProtocolExpr *Node);
+ void VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node);
+ };
+}
+
+//===----------------------------------------------------------------------===//
+// Utilities
+//===----------------------------------------------------------------------===//
+
+void StmtDumper::DumpLocation(SourceLocation Loc) {
+ SourceLocation PhysLoc = SM->getPhysicalLoc(Loc);
+
+ // The general format we print out is filename:line:col, but we drop pieces
+ // that haven't changed since the last loc printed.
+ const char *Filename = SM->getSourceName(PhysLoc);
+ unsigned LineNo = SM->getLineNumber(PhysLoc);
+ if (strcmp(Filename, LastLocFilename) != 0) {
+ fprintf(stderr, "%s:%u:%u", Filename, LineNo, SM->getColumnNumber(PhysLoc));
+ LastLocFilename = Filename;
+ LastLocLine = LineNo;
+ } else if (LineNo != LastLocLine) {
+ fprintf(stderr, "line:%u:%u", LineNo, SM->getColumnNumber(PhysLoc));
+ LastLocLine = LineNo;
+ } else {
+ fprintf(stderr, "col:%u", SM->getColumnNumber(PhysLoc));
+ }
+}
+
+void StmtDumper::DumpSourceRange(const Stmt *Node) {
+ // Can't translate locations if a SourceManager isn't available.
+ if (SM == 0) return;
+
+ // TODO: If the parent expression is available, we can print a delta vs its
+ // location.
+ SourceRange R = Node->getSourceRange();
+
+ fprintf(stderr, " <");
+ DumpLocation(R.getBegin());
+ if (R.getBegin() != R.getEnd()) {
+ fprintf(stderr, ", ");
+ DumpLocation(R.getEnd());
+ }
+ fprintf(stderr, ">");
+
+ // <t2.c:123:421[blah], t2.c:412:321>
+
+}
+
+
+//===----------------------------------------------------------------------===//
+// Stmt printing methods.
+//===----------------------------------------------------------------------===//
+
+void StmtDumper::VisitStmt(Stmt *Node) {
+ DumpStmt(Node);
+}
+
+void StmtDumper::DumpDeclarator(Decl *D) {
+ // FIXME: Need to complete/beautify this... this code simply shows the
+ // nodes are where they need to be.
+ if (TypedefDecl *localType = dyn_cast<TypedefDecl>(D)) {
+ fprintf(F, "\"typedef %s %s\"",
+ localType->getUnderlyingType().getAsString().c_str(),
+ localType->getName());
+ } else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) {
+ fprintf(F, "\"");
+ // Emit storage class for vardecls.
+ if (VarDecl *V = dyn_cast<VarDecl>(VD)) {
+ switch (V->getStorageClass()) {
+ default: assert(0 && "Unknown storage class!");
+ case VarDecl::None: break;
+ case VarDecl::Extern: fprintf(F, "extern "); break;
+ case VarDecl::Static: fprintf(F, "static "); break;
+ case VarDecl::Auto: fprintf(F, "auto "); break;
+ case VarDecl::Register: fprintf(F, "register "); break;
+ }
+ }
+
+ std::string Name = VD->getName();
+ VD->getType().getAsStringInternal(Name);
+ fprintf(F, "%s", Name.c_str());
+
+ // If this is a vardecl with an initializer, emit it.
+ if (VarDecl *V = dyn_cast<VarDecl>(VD)) {
+ if (V->getInit()) {
+ fprintf(F, " =\n");
+ DumpSubTree(V->getInit());
+ }
+ }
+ fprintf(F, "\"");
+ } else if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
+ // print a free standing tag decl (e.g. "struct x;").
+ const char *tagname;
+ if (const IdentifierInfo *II = TD->getIdentifier())
+ tagname = II->getName();
+ else
+ tagname = "<anonymous>";
+ fprintf(F, "\"%s %s;\"", TD->getKindName(), tagname);
+ // FIXME: print tag bodies.
+ } else {
+ assert(0 && "Unexpected decl");
+ }
+}
+
+void StmtDumper::VisitDeclStmt(DeclStmt *Node) {
+ DumpStmt(Node);
+ fprintf(F,"\n");
+ for (ScopedDecl *D = Node->getDecl(); D; D = D->getNextDeclarator()) {
+ ++IndentLevel;
+ Indent();
+ fprintf(F, "%p ", (void*) D);
+ DumpDeclarator(D);
+ if (D->getNextDeclarator())
+ fprintf(F,"\n");
+ --IndentLevel;
+ }
+}
+
+void StmtDumper::VisitLabelStmt(LabelStmt *Node) {
+ DumpStmt(Node);
+ fprintf(F, " '%s'\n", Node->getName());
+}
+
+void StmtDumper::VisitGotoStmt(GotoStmt *Node) {
+ DumpStmt(Node);
+ fprintf(F, " '%s':%p", Node->getLabel()->getName(), (void*)Node->getLabel());
+}
+
+//===----------------------------------------------------------------------===//
+// Expr printing methods.
+//===----------------------------------------------------------------------===//
+
+void StmtDumper::VisitExpr(Expr *Node) {
+ DumpExpr(Node);
+}
+
+void StmtDumper::VisitDeclRefExpr(DeclRefExpr *Node) {
+ DumpExpr(Node);
+
+ fprintf(F, " ");
+ switch (Node->getDecl()->getKind()) {
+ case Decl::Function: fprintf(F,"FunctionDecl"); break;
+ case Decl::BlockVar: fprintf(F,"BlockVar"); break;
+ case Decl::FileVar: fprintf(F,"FileVar"); break;
+ case Decl::ParmVar: fprintf(F,"ParmVar"); break;
+ case Decl::EnumConstant: fprintf(F,"EnumConstant"); break;
+ case Decl::Typedef: fprintf(F,"Typedef"); break;
+ case Decl::Struct: fprintf(F,"Struct"); break;
+ case Decl::Union: fprintf(F,"Union"); break;
+ case Decl::Class: fprintf(F,"Class"); break;
+ case Decl::Enum: fprintf(F,"Enum"); break;
+ case Decl::ObjCInterface: fprintf(F,"ObjCInterface"); break;
+ case Decl::ObjCClass: fprintf(F,"ObjCClass"); break;
+ default: fprintf(F,"Decl"); break;
+ }
+
+ fprintf(F, "='%s' %p", Node->getDecl()->getName(), (void*)Node->getDecl());
+}
+
+void StmtDumper::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
+ DumpExpr(Node->getBase());
+
+ fprintf(F, " ObjCIvarRefExpr");
+ fprintf(F, "='%s' %p", Node->getDecl()->getName(), (void*)Node->getDecl());
+}
+
+void StmtDumper::VisitPreDefinedExpr(PreDefinedExpr *Node) {
+ DumpExpr(Node);
+ switch (Node->getIdentType()) {
+ default:
+ assert(0 && "unknown case");
+ case PreDefinedExpr::Func:
+ fprintf(F, " __func__");
+ break;
+ case PreDefinedExpr::Function:
+ fprintf(F, " __FUNCTION__");
+ break;
+ case PreDefinedExpr::PrettyFunction:
+ fprintf(F, " __PRETTY_FUNCTION__");
+ break;
+ }
+}
+
+void StmtDumper::VisitCharacterLiteral(CharacterLiteral *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %d", Node->getValue());
+}
+
+void StmtDumper::VisitIntegerLiteral(IntegerLiteral *Node) {
+ DumpExpr(Node);
+
+ bool isSigned = Node->getType()->isSignedIntegerType();
+ fprintf(F, " %s", Node->getValue().toString(10, isSigned).c_str());
+}
+void StmtDumper::VisitFloatingLiteral(FloatingLiteral *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %f", Node->getValueAsDouble());
+}
+
+void StmtDumper::VisitStringLiteral(StringLiteral *Str) {
+ DumpExpr(Str);
+ // FIXME: this doesn't print wstrings right.
+ fprintf(F, " %s\"", Str->isWide() ? "L" : "");
+
+ for (unsigned i = 0, e = Str->getByteLength(); i != e; ++i) {
+ switch (char C = Str->getStrData()[i]) {
+ default:
+ if (isprint(C))
+ fputc(C, F);
+ else
+ fprintf(F, "\\%03o", C);
+ break;
+ // Handle some common ones to make dumps prettier.
+ case '\\': fprintf(F, "\\\\"); break;
+ case '"': fprintf(F, "\\\""); break;
+ case '\n': fprintf(F, "\\n"); break;
+ case '\t': fprintf(F, "\\t"); break;
+ case '\a': fprintf(F, "\\a"); break;
+ case '\b': fprintf(F, "\\b"); break;
+ }
+ }
+ fprintf(F, "\"");
+}
+
+void StmtDumper::VisitUnaryOperator(UnaryOperator *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s '%s'", Node->isPostfix() ? "postfix" : "prefix",
+ UnaryOperator::getOpcodeStr(Node->getOpcode()));
+}
+void StmtDumper::VisitSizeOfAlignOfTypeExpr(SizeOfAlignOfTypeExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s ", Node->isSizeOf() ? "sizeof" : "alignof");
+ DumpType(Node->getArgumentType());
+}
+
+void StmtDumper::VisitMemberExpr(MemberExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s%s %p", Node->isArrow() ? "->" : ".",
+ Node->getMemberDecl()->getName(), (void*)Node->getMemberDecl());
+}
+void StmtDumper::VisitOCUVectorElementExpr(OCUVectorElementExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s", Node->getAccessor().getName());
+}
+void StmtDumper::VisitBinaryOperator(BinaryOperator *Node) {
+ DumpExpr(Node);
+ fprintf(F, " '%s'", BinaryOperator::getOpcodeStr(Node->getOpcode()));
+}
+void StmtDumper::VisitCompoundAssignOperator(CompoundAssignOperator *Node) {
+ DumpExpr(Node);
+ fprintf(F, " '%s' ComputeTy=",
+ BinaryOperator::getOpcodeStr(Node->getOpcode()));
+ DumpType(Node->getComputationType());
+}
+
+// GNU extensions.
+
+void StmtDumper::VisitAddrLabelExpr(AddrLabelExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s %p", Node->getLabel()->getName(), (void*)Node->getLabel());
+}
+
+void StmtDumper::VisitTypesCompatibleExpr(TypesCompatibleExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " ");
+ DumpType(Node->getArgType1());
+ fprintf(F, " ");
+ DumpType(Node->getArgType2());
+}
+
+//===----------------------------------------------------------------------===//
+// C++ Expressions
+//===----------------------------------------------------------------------===//
+
+void StmtDumper::VisitCXXCastExpr(CXXCastExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s", CXXCastExpr::getOpcodeStr(Node->getOpcode()));
+}
+
+void StmtDumper::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *Node) {
+ DumpExpr(Node);
+ fprintf(F, " %s", Node->getValue() ? "true" : "false");
+}
+
+//===----------------------------------------------------------------------===//
+// Obj-C Expressions
+//===----------------------------------------------------------------------===//
+
+void StmtDumper::VisitObjCMessageExpr(ObjCMessageExpr* Node) {
+ DumpExpr(Node);
+ fprintf(F, " selector=%s", Node->getSelector().getName().c_str());
+}
+
+void StmtDumper::VisitObjCEncodeExpr(ObjCEncodeExpr *Node) {
+ DumpExpr(Node);
+
+ fprintf(F, " ");
+ DumpType(Node->getEncodedType());
+}
+
+void StmtDumper::VisitObjCSelectorExpr(ObjCSelectorExpr *Node) {
+ DumpExpr(Node);
+
+ fprintf(F, " ");
+ Selector &selector = Node->getSelector();
+ fprintf(F, "%s", selector.getName().c_str());
+}
+
+void StmtDumper::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) {
+ DumpExpr(Node);
+
+ fprintf(F, " ");
+ fprintf(F, "%s", Node->getProtocol()->getName());
+}
+//===----------------------------------------------------------------------===//
+// Stmt method implementations
+//===----------------------------------------------------------------------===//
+
+/// dump - This does a local dump of the specified AST fragment. It dumps the
+/// specified node and a few nodes underneath it, but not the whole subtree.
+/// This is useful in a debugger.
+void Stmt::dump(SourceManager &SM) const {
+ StmtDumper P(&SM, stderr, 4);
+ P.DumpSubTree(const_cast<Stmt*>(this));
+ fprintf(stderr, "\n");
+}
+
+/// dump - This does a local dump of the specified AST fragment. It dumps the
+/// specified node and a few nodes underneath it, but not the whole subtree.
+/// This is useful in a debugger.
+void Stmt::dump() const {
+ StmtDumper P(0, stderr, 4);
+ P.DumpSubTree(const_cast<Stmt*>(this));
+ fprintf(stderr, "\n");
+}
+
+/// dumpAll - This does a dump of the specified AST fragment and all subtrees.
+void Stmt::dumpAll(SourceManager &SM) const {
+ StmtDumper P(&SM, stderr, ~0U);
+ P.DumpSubTree(const_cast<Stmt*>(this));
+ fprintf(stderr, "\n");
+}
+
+/// dumpAll - This does a dump of the specified AST fragment and all subtrees.
+void Stmt::dumpAll() const {
+ StmtDumper P(0, stderr, ~0U);
+ P.DumpSubTree(const_cast<Stmt*>(this));
+ fprintf(stderr, "\n");
+}
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