diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
| commit | 0b57cec536236d46e3dba9bd041533462f33dbb7 (patch) | |
| tree | 56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/tools/clang/lib/Frontend/Rewrite/FrontendActions.cpp | |
| parent | 718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff) | |
Notes
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Frontend/Rewrite/FrontendActions.cpp')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/Frontend/Rewrite/FrontendActions.cpp | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/contrib/llvm/tools/clang/lib/Frontend/Rewrite/FrontendActions.cpp b/contrib/llvm/tools/clang/lib/Frontend/Rewrite/FrontendActions.cpp deleted file mode 100644 index 0f1a0584c72b..000000000000 --- a/contrib/llvm/tools/clang/lib/Frontend/Rewrite/FrontendActions.cpp +++ /dev/null @@ -1,322 +0,0 @@ -//===--- FrontendActions.cpp ----------------------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include "clang/Rewrite/Frontend/FrontendActions.h" -#include "clang/AST/ASTConsumer.h" -#include "clang/Basic/CharInfo.h" -#include "clang/Config/config.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/Lex/PreprocessorOptions.h" -#include "clang/Rewrite/Frontend/ASTConsumers.h" -#include "clang/Rewrite/Frontend/FixItRewriter.h" -#include "clang/Rewrite/Frontend/Rewriters.h" -#include "clang/Serialization/ASTReader.h" -#include "clang/Serialization/Module.h" -#include "clang/Serialization/ModuleManager.h" -#include "llvm/ADT/DenseSet.h" -#include "llvm/Support/CrashRecoveryContext.h" -#include "llvm/Support/FileSystem.h" -#include "llvm/Support/Path.h" -#include "llvm/Support/raw_ostream.h" -#include <memory> -#include <utility> - -using namespace clang; - -//===----------------------------------------------------------------------===// -// AST Consumer Actions -//===----------------------------------------------------------------------===// - -std::unique_ptr<ASTConsumer> -HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - if (std::unique_ptr<raw_ostream> OS = - CI.createDefaultOutputFile(false, InFile)) - return CreateHTMLPrinter(std::move(OS), CI.getPreprocessor()); - return nullptr; -} - -FixItAction::FixItAction() {} -FixItAction::~FixItAction() {} - -std::unique_ptr<ASTConsumer> -FixItAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return llvm::make_unique<ASTConsumer>(); -} - -namespace { -class FixItRewriteInPlace : public FixItOptions { -public: - FixItRewriteInPlace() { InPlace = true; } - - std::string RewriteFilename(const std::string &Filename, int &fd) override { - llvm_unreachable("don't call RewriteFilename for inplace rewrites"); - } -}; - -class FixItActionSuffixInserter : public FixItOptions { - std::string NewSuffix; - -public: - FixItActionSuffixInserter(std::string NewSuffix, bool FixWhatYouCan) - : NewSuffix(std::move(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).drop_front(), fd, - Path); - return Path.str(); - } -}; -} // end anonymous namespace - -bool FixItAction::BeginSourceFileAction(CompilerInstance &CI) { - 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()); - if (llvm::Error Err = FixAction->Execute()) { - // FIXME this drops the error on the floor. - consumeError(std::move(Err)); - return false; - } - - 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; -} - -#if CLANG_ENABLE_OBJC_REWRITER - -std::unique_ptr<ASTConsumer> -RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - if (std::unique_ptr<raw_ostream> OS = - CI.createDefaultOutputFile(false, InFile, "cpp")) { - if (CI.getLangOpts().ObjCRuntime.isNonFragile()) - return CreateModernObjCRewriter( - InFile, std::move(OS), CI.getDiagnostics(), CI.getLangOpts(), - CI.getDiagnosticOpts().NoRewriteMacros, - (CI.getCodeGenOpts().getDebugInfo() != codegenoptions::NoDebugInfo)); - return CreateObjCRewriter(InFile, std::move(OS), CI.getDiagnostics(), - CI.getLangOpts(), - CI.getDiagnosticOpts().NoRewriteMacros); - } - return nullptr; -} - -#endif - -//===----------------------------------------------------------------------===// -// Preprocessor Actions -//===----------------------------------------------------------------------===// - -void RewriteMacrosAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - std::unique_ptr<raw_ostream> OS = - CI.createDefaultOutputFile(true, getCurrentFileOrBufferName()); - if (!OS) return; - - RewriteMacrosInInput(CI.getPreprocessor(), OS.get()); -} - -void RewriteTestAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - std::unique_ptr<raw_ostream> OS = - CI.createDefaultOutputFile(false, getCurrentFileOrBufferName()); - if (!OS) return; - - DoRewriteTest(CI.getPreprocessor(), OS.get()); -} - -class RewriteIncludesAction::RewriteImportsListener : public ASTReaderListener { - CompilerInstance &CI; - std::weak_ptr<raw_ostream> Out; - - llvm::DenseSet<const FileEntry*> Rewritten; - -public: - RewriteImportsListener(CompilerInstance &CI, std::shared_ptr<raw_ostream> Out) - : CI(CI), Out(Out) {} - - void visitModuleFile(StringRef Filename, - serialization::ModuleKind Kind) override { - auto *File = CI.getFileManager().getFile(Filename); - assert(File && "missing file for loaded module?"); - - // Only rewrite each module file once. - if (!Rewritten.insert(File).second) - return; - - serialization::ModuleFile *MF = - CI.getModuleManager()->getModuleManager().lookup(File); - assert(File && "missing module file for loaded module?"); - - // Not interested in PCH / preambles. - if (!MF->isModule()) - return; - - auto OS = Out.lock(); - assert(OS && "loaded module file after finishing rewrite action?"); - - (*OS) << "#pragma clang module build "; - if (isValidIdentifier(MF->ModuleName)) - (*OS) << MF->ModuleName; - else { - (*OS) << '"'; - OS->write_escaped(MF->ModuleName); - (*OS) << '"'; - } - (*OS) << '\n'; - - // Rewrite the contents of the module in a separate compiler instance. - CompilerInstance Instance(CI.getPCHContainerOperations(), - &CI.getModuleCache()); - Instance.setInvocation( - std::make_shared<CompilerInvocation>(CI.getInvocation())); - Instance.createDiagnostics( - new ForwardingDiagnosticConsumer(CI.getDiagnosticClient()), - /*ShouldOwnClient=*/true); - Instance.getFrontendOpts().DisableFree = false; - Instance.getFrontendOpts().Inputs.clear(); - Instance.getFrontendOpts().Inputs.emplace_back( - Filename, InputKind(InputKind::Unknown, InputKind::Precompiled)); - Instance.getFrontendOpts().ModuleFiles.clear(); - Instance.getFrontendOpts().ModuleMapFiles.clear(); - // Don't recursively rewrite imports. We handle them all at the top level. - Instance.getPreprocessorOutputOpts().RewriteImports = false; - - llvm::CrashRecoveryContext().RunSafelyOnThread([&]() { - RewriteIncludesAction Action; - Action.OutputStream = OS; - Instance.ExecuteAction(Action); - }); - - (*OS) << "#pragma clang module endbuild /*" << MF->ModuleName << "*/\n"; - } -}; - -bool RewriteIncludesAction::BeginSourceFileAction(CompilerInstance &CI) { - if (!OutputStream) { - OutputStream = - CI.createDefaultOutputFile(true, getCurrentFileOrBufferName()); - if (!OutputStream) - return false; - } - - auto &OS = *OutputStream; - - // If we're preprocessing a module map, start by dumping the contents of the - // module itself before switching to the input buffer. - auto &Input = getCurrentInput(); - if (Input.getKind().getFormat() == InputKind::ModuleMap) { - if (Input.isFile()) { - OS << "# 1 \""; - OS.write_escaped(Input.getFile()); - OS << "\"\n"; - } - getCurrentModule()->print(OS); - OS << "#pragma clang module contents\n"; - } - - // If we're rewriting imports, set up a listener to track when we import - // module files. - if (CI.getPreprocessorOutputOpts().RewriteImports) { - CI.createModuleManager(); - CI.getModuleManager()->addListener( - llvm::make_unique<RewriteImportsListener>(CI, OutputStream)); - } - - return true; -} - -void RewriteIncludesAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - - // If we're rewriting imports, emit the module build output first rather - // than switching back and forth (potentially in the middle of a line). - if (CI.getPreprocessorOutputOpts().RewriteImports) { - std::string Buffer; - llvm::raw_string_ostream OS(Buffer); - - RewriteIncludesInInput(CI.getPreprocessor(), &OS, - CI.getPreprocessorOutputOpts()); - - (*OutputStream) << OS.str(); - } else { - RewriteIncludesInInput(CI.getPreprocessor(), OutputStream.get(), - CI.getPreprocessorOutputOpts()); - } - - OutputStream.reset(); -} |
