Make clang's rewrite engine a core feature

The rewrite facility's footprint is small so it's not worth going to these
lengths to support disabling at configure time, particularly since key compiler
features now depend on it.

Meanwhile the Objective-C rewriters have been moved under the
ENABLE_CLANG_ARCMT umbrella for now as they're comparatively heavy and still
potentially worth excluding from lightweight builds.

Tests are now passing with any combination of feature flags. The flags
historically haven't been tested by LLVM's build servers so caveat emptor.

llvm-svn: 213171

1 files changed, 0 insertions, 192 deletions

diff --git a/clang/lib/Rewrite/Frontend/FrontendActions.cpp b/clang/lib/Rewrite/Frontend/FrontendActions.cpp
deleted file mode 100644
index 4394e993a41..00000000000
--- a/clang/lib/Rewrite/Frontend/FrontendActions.cpp
+++ /dev/null
@@ -1,192 +0,0 @@
-//===--- FrontendActions.cpp ----------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Rewrite/Frontend/FrontendActions.h"
-#include "clang/AST/ASTConsumer.h"
-#include "clang/Basic/FileManager.h"
-#include "clang/Frontend/CompilerInstance.h"
-#include "clang/Frontend/FrontendActions.h"
-#include "clang/Frontend/FrontendDiagnostic.h"
-#include "clang/Frontend/Utils.h"
-#include "clang/Lex/Preprocessor.h"
-#include "clang/Parse/Parser.h"
-#include "clang/Rewrite/Frontend/ASTConsumers.h"
-#include "clang/Rewrite/Frontend/FixItRewriter.h"
-#include "clang/Rewrite/Frontend/Rewriters.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/raw_ostream.h"
-#include <memory>
-
-using namespace clang;
-
-//===----------------------------------------------------------------------===//
-// AST Consumer Actions
-//===----------------------------------------------------------------------===//
-
-ASTConsumer *HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI,
-                                                StringRef InFile) {
-  if (raw_ostream *OS = CI.createDefaultOutputFile(false, InFile))
-    return CreateHTMLPrinter(OS, CI.getPreprocessor());
-  return nullptr;
-}
-
-FixItAction::FixItAction() {}
-FixItAction::~FixItAction() {}
-
-ASTConsumer *FixItAction::CreateASTConsumer(CompilerInstance &CI,
-                                            StringRef InFile) {
-  return new ASTConsumer();
-}
-
-namespace {
-class FixItRewriteInPlace : public FixItOptions {
-public:
-  std::string RewriteFilename(const std::string &Filename, int &fd) override {
-    fd = -1;
-    return Filename;
-  }
-};
-
-class FixItActionSuffixInserter : public FixItOptions {
-  std::string NewSuffix;
-
-public:
-  FixItActionSuffixInserter(std::string NewSuffix, bool FixWhatYouCan)
-    : NewSuffix(NewSuffix) {
-      this->FixWhatYouCan = FixWhatYouCan;
-  }
-
-  std::string RewriteFilename(const std::string &Filename, int &fd) override {
-    fd = -1;
-    SmallString<128> Path(Filename);
-    llvm::sys::path::replace_extension(Path,
-      NewSuffix + llvm::sys::path::extension(Path));
-    return Path.str();
-  }
-};
-
-class FixItRewriteToTemp : public FixItOptions {
-public:
-  std::string RewriteFilename(const std::string &Filename, int &fd) override {
-    SmallString<128> Path;
-    llvm::sys::fs::createTemporaryFile(llvm::sys::path::filename(Filename),
-                                       llvm::sys::path::extension(Filename), fd,
-                                       Path);
-    return Path.str();
-  }
-};
-} // end anonymous namespace
-
-bool FixItAction::BeginSourceFileAction(CompilerInstance &CI,
-                                        StringRef Filename) {
-  const FrontendOptions &FEOpts = getCompilerInstance().getFrontendOpts();
-  if (!FEOpts.FixItSuffix.empty()) {
-    FixItOpts.reset(new FixItActionSuffixInserter(FEOpts.FixItSuffix,
-                                                  FEOpts.FixWhatYouCan));
-  } else {
-    FixItOpts.reset(new FixItRewriteInPlace);
-    FixItOpts->FixWhatYouCan = FEOpts.FixWhatYouCan;
-  }
-  Rewriter.reset(new FixItRewriter(CI.getDiagnostics(), CI.getSourceManager(),
-                                   CI.getLangOpts(), FixItOpts.get()));
-  return true;
-}
-
-void FixItAction::EndSourceFileAction() {
-  // Otherwise rewrite all files.
-  Rewriter->WriteFixedFiles();
-}
-
-bool FixItRecompile::BeginInvocation(CompilerInstance &CI) {
-
-  std::vector<std::pair<std::string, std::string> > RewrittenFiles;
-  bool err = false;
-  {
-    const FrontendOptions &FEOpts = CI.getFrontendOpts();
-    std::unique_ptr<FrontendAction> FixAction(new SyntaxOnlyAction());
-    if (FixAction->BeginSourceFile(CI, FEOpts.Inputs[0])) {
-      std::unique_ptr<FixItOptions> FixItOpts;
-      if (FEOpts.FixToTemporaries)
-        FixItOpts.reset(new FixItRewriteToTemp());
-      else
-        FixItOpts.reset(new FixItRewriteInPlace());
-      FixItOpts->Silent = true;
-      FixItOpts->FixWhatYouCan = FEOpts.FixWhatYouCan;
-      FixItOpts->FixOnlyWarnings = FEOpts.FixOnlyWarnings;
-      FixItRewriter Rewriter(CI.getDiagnostics(), CI.getSourceManager(),
-                             CI.getLangOpts(), FixItOpts.get());
-      FixAction->Execute();
-  
-      err = Rewriter.WriteFixedFiles(&RewrittenFiles);
-    
-      FixAction->EndSourceFile();
-      CI.setSourceManager(nullptr);
-      CI.setFileManager(nullptr);
-    } else {
-      err = true;
-    }
-  }
-  if (err)
-    return false;
-  CI.getDiagnosticClient().clear();
-  CI.getDiagnostics().Reset();
-
-  PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
-  PPOpts.RemappedFiles.insert(PPOpts.RemappedFiles.end(),
-                              RewrittenFiles.begin(), RewrittenFiles.end());
-  PPOpts.RemappedFilesKeepOriginalName = false;
-
-  return true;
-}
-
-//===----------------------------------------------------------------------===//
-// Preprocessor Actions
-//===----------------------------------------------------------------------===//
-
-ASTConsumer *RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI,
-                                                  StringRef InFile) {
-  if (raw_ostream *OS = CI.createDefaultOutputFile(false, InFile, "cpp")) {
-    if (CI.getLangOpts().ObjCRuntime.isNonFragile())
-      return CreateModernObjCRewriter(InFile, OS,
-                                CI.getDiagnostics(), CI.getLangOpts(),
-                                CI.getDiagnosticOpts().NoRewriteMacros,
-                                (CI.getCodeGenOpts().getDebugInfo() !=
-                                 CodeGenOptions::NoDebugInfo));
-    return CreateObjCRewriter(InFile, OS,
-                              CI.getDiagnostics(), CI.getLangOpts(),
-                              CI.getDiagnosticOpts().NoRewriteMacros);
-  }
-  return nullptr;
-}
-
-void RewriteMacrosAction::ExecuteAction() {
-  CompilerInstance &CI = getCompilerInstance();
-  raw_ostream *OS = CI.createDefaultOutputFile(true, getCurrentFile());
-  if (!OS) return;
-
-  RewriteMacrosInInput(CI.getPreprocessor(), OS);
-}
-
-void RewriteTestAction::ExecuteAction() {
-  CompilerInstance &CI = getCompilerInstance();
-  raw_ostream *OS = CI.createDefaultOutputFile(false, getCurrentFile());
-  if (!OS) return;
-
-  DoRewriteTest(CI.getPreprocessor(), OS);
-}
-
-void RewriteIncludesAction::ExecuteAction() {
-  CompilerInstance &CI = getCompilerInstance();
-  raw_ostream *OS = CI.createDefaultOutputFile(true, getCurrentFile());
-  if (!OS) return;
-
-  RewriteIncludesInInput(CI.getPreprocessor(), OS,
-                         CI.getPreprocessorOutputOpts());
-}