758 lines
28 KiB
C++
758 lines
28 KiB
C++
//===--- FrontendActions.cpp ----------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Frontend/ASTConsumers.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/Frontend/MultiplexConsumer.h"
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#include "clang/Frontend/Utils.h"
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#include "clang/Lex/HeaderSearch.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Lex/PreprocessorOptions.h"
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#include "clang/Sema/TemplateInstCallback.h"
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#include "clang/Serialization/ASTReader.h"
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#include "clang/Serialization/ASTWriter.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/YAMLTraits.h"
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#include <memory>
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#include <system_error>
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using namespace clang;
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namespace {
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CodeCompleteConsumer *GetCodeCompletionConsumer(CompilerInstance &CI) {
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return CI.hasCodeCompletionConsumer() ? &CI.getCodeCompletionConsumer()
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: nullptr;
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}
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void EnsureSemaIsCreated(CompilerInstance &CI, FrontendAction &Action) {
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if (Action.hasCodeCompletionSupport() &&
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!CI.getFrontendOpts().CodeCompletionAt.FileName.empty())
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CI.createCodeCompletionConsumer();
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if (!CI.hasSema())
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CI.createSema(Action.getTranslationUnitKind(),
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GetCodeCompletionConsumer(CI));
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}
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} // namespace
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//===----------------------------------------------------------------------===//
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// Custom Actions
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//===----------------------------------------------------------------------===//
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std::unique_ptr<ASTConsumer>
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InitOnlyAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return llvm::make_unique<ASTConsumer>();
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}
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void InitOnlyAction::ExecuteAction() {
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}
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//===----------------------------------------------------------------------===//
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// AST Consumer Actions
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//===----------------------------------------------------------------------===//
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std::unique_ptr<ASTConsumer>
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ASTPrintAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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if (std::unique_ptr<raw_ostream> OS =
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CI.createDefaultOutputFile(false, InFile))
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return CreateASTPrinter(std::move(OS), CI.getFrontendOpts().ASTDumpFilter);
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return nullptr;
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}
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std::unique_ptr<ASTConsumer>
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ASTDumpAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return CreateASTDumper(nullptr /*Dump to stdout.*/,
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CI.getFrontendOpts().ASTDumpFilter,
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CI.getFrontendOpts().ASTDumpDecls,
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CI.getFrontendOpts().ASTDumpAll,
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CI.getFrontendOpts().ASTDumpLookups);
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}
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std::unique_ptr<ASTConsumer>
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ASTDeclListAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return CreateASTDeclNodeLister();
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}
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std::unique_ptr<ASTConsumer>
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ASTViewAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return CreateASTViewer();
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}
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std::unique_ptr<ASTConsumer>
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DeclContextPrintAction::CreateASTConsumer(CompilerInstance &CI,
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StringRef InFile) {
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return CreateDeclContextPrinter();
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}
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std::unique_ptr<ASTConsumer>
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GeneratePCHAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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std::string Sysroot;
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if (!ComputeASTConsumerArguments(CI, /*ref*/ Sysroot))
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return nullptr;
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std::string OutputFile;
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std::unique_ptr<raw_pwrite_stream> OS =
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CreateOutputFile(CI, InFile, /*ref*/ OutputFile);
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if (!OS)
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return nullptr;
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if (!CI.getFrontendOpts().RelocatablePCH)
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Sysroot.clear();
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auto Buffer = std::make_shared<PCHBuffer>();
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std::vector<std::unique_ptr<ASTConsumer>> Consumers;
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Consumers.push_back(llvm::make_unique<PCHGenerator>(
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CI.getPreprocessor(), OutputFile, Sysroot,
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Buffer, CI.getFrontendOpts().ModuleFileExtensions,
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/*AllowASTWithErrors*/CI.getPreprocessorOpts().AllowPCHWithCompilerErrors,
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/*IncludeTimestamps*/
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+CI.getFrontendOpts().IncludeTimestamps));
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Consumers.push_back(CI.getPCHContainerWriter().CreatePCHContainerGenerator(
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CI, InFile, OutputFile, std::move(OS), Buffer));
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return llvm::make_unique<MultiplexConsumer>(std::move(Consumers));
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}
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bool GeneratePCHAction::ComputeASTConsumerArguments(CompilerInstance &CI,
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std::string &Sysroot) {
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Sysroot = CI.getHeaderSearchOpts().Sysroot;
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if (CI.getFrontendOpts().RelocatablePCH && Sysroot.empty()) {
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CI.getDiagnostics().Report(diag::err_relocatable_without_isysroot);
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return false;
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}
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return true;
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}
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std::unique_ptr<llvm::raw_pwrite_stream>
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GeneratePCHAction::CreateOutputFile(CompilerInstance &CI, StringRef InFile,
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std::string &OutputFile) {
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// We use createOutputFile here because this is exposed via libclang, and we
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// must disable the RemoveFileOnSignal behavior.
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// We use a temporary to avoid race conditions.
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std::unique_ptr<raw_pwrite_stream> OS =
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CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true,
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/*RemoveFileOnSignal=*/false, InFile,
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/*Extension=*/"", /*useTemporary=*/true);
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if (!OS)
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return nullptr;
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OutputFile = CI.getFrontendOpts().OutputFile;
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return OS;
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}
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bool GeneratePCHAction::shouldEraseOutputFiles() {
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if (getCompilerInstance().getPreprocessorOpts().AllowPCHWithCompilerErrors)
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return false;
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return ASTFrontendAction::shouldEraseOutputFiles();
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}
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bool GeneratePCHAction::BeginSourceFileAction(CompilerInstance &CI) {
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CI.getLangOpts().CompilingPCH = true;
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return true;
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}
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std::unique_ptr<ASTConsumer>
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GenerateModuleAction::CreateASTConsumer(CompilerInstance &CI,
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StringRef InFile) {
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std::unique_ptr<raw_pwrite_stream> OS = CreateOutputFile(CI, InFile);
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if (!OS)
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return nullptr;
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std::string OutputFile = CI.getFrontendOpts().OutputFile;
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std::string Sysroot;
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auto Buffer = std::make_shared<PCHBuffer>();
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std::vector<std::unique_ptr<ASTConsumer>> Consumers;
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Consumers.push_back(llvm::make_unique<PCHGenerator>(
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CI.getPreprocessor(), OutputFile, Sysroot,
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Buffer, CI.getFrontendOpts().ModuleFileExtensions,
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/*AllowASTWithErrors=*/false,
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/*IncludeTimestamps=*/
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+CI.getFrontendOpts().BuildingImplicitModule));
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Consumers.push_back(CI.getPCHContainerWriter().CreatePCHContainerGenerator(
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CI, InFile, OutputFile, std::move(OS), Buffer));
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return llvm::make_unique<MultiplexConsumer>(std::move(Consumers));
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}
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bool GenerateModuleFromModuleMapAction::BeginSourceFileAction(
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CompilerInstance &CI) {
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if (!CI.getLangOpts().Modules) {
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CI.getDiagnostics().Report(diag::err_module_build_requires_fmodules);
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return false;
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}
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return GenerateModuleAction::BeginSourceFileAction(CI);
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}
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std::unique_ptr<raw_pwrite_stream>
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GenerateModuleFromModuleMapAction::CreateOutputFile(CompilerInstance &CI,
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StringRef InFile) {
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// If no output file was provided, figure out where this module would go
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// in the module cache.
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if (CI.getFrontendOpts().OutputFile.empty()) {
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StringRef ModuleMapFile = CI.getFrontendOpts().OriginalModuleMap;
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if (ModuleMapFile.empty())
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ModuleMapFile = InFile;
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HeaderSearch &HS = CI.getPreprocessor().getHeaderSearchInfo();
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CI.getFrontendOpts().OutputFile =
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HS.getCachedModuleFileName(CI.getLangOpts().CurrentModule,
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ModuleMapFile);
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}
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// We use createOutputFile here because this is exposed via libclang, and we
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// must disable the RemoveFileOnSignal behavior.
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// We use a temporary to avoid race conditions.
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return CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true,
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/*RemoveFileOnSignal=*/false, InFile,
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/*Extension=*/"", /*useTemporary=*/true,
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/*CreateMissingDirectories=*/true);
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}
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bool GenerateModuleInterfaceAction::BeginSourceFileAction(
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CompilerInstance &CI) {
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if (!CI.getLangOpts().ModulesTS) {
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CI.getDiagnostics().Report(diag::err_module_interface_requires_modules_ts);
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return false;
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}
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CI.getLangOpts().setCompilingModule(LangOptions::CMK_ModuleInterface);
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return GenerateModuleAction::BeginSourceFileAction(CI);
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}
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std::unique_ptr<raw_pwrite_stream>
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GenerateModuleInterfaceAction::CreateOutputFile(CompilerInstance &CI,
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StringRef InFile) {
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return CI.createDefaultOutputFile(/*Binary=*/true, InFile, "pcm");
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}
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SyntaxOnlyAction::~SyntaxOnlyAction() {
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}
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std::unique_ptr<ASTConsumer>
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SyntaxOnlyAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return llvm::make_unique<ASTConsumer>();
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}
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std::unique_ptr<ASTConsumer>
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DumpModuleInfoAction::CreateASTConsumer(CompilerInstance &CI,
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StringRef InFile) {
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return llvm::make_unique<ASTConsumer>();
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}
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std::unique_ptr<ASTConsumer>
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VerifyPCHAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return llvm::make_unique<ASTConsumer>();
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}
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void VerifyPCHAction::ExecuteAction() {
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CompilerInstance &CI = getCompilerInstance();
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bool Preamble = CI.getPreprocessorOpts().PrecompiledPreambleBytes.first != 0;
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const std::string &Sysroot = CI.getHeaderSearchOpts().Sysroot;
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std::unique_ptr<ASTReader> Reader(new ASTReader(
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CI.getPreprocessor(), &CI.getASTContext(), CI.getPCHContainerReader(),
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CI.getFrontendOpts().ModuleFileExtensions,
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Sysroot.empty() ? "" : Sysroot.c_str(),
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/*DisableValidation*/ false,
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/*AllowPCHWithCompilerErrors*/ false,
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/*AllowConfigurationMismatch*/ true,
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/*ValidateSystemInputs*/ true));
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Reader->ReadAST(getCurrentFile(),
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Preamble ? serialization::MK_Preamble
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: serialization::MK_PCH,
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SourceLocation(),
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ASTReader::ARR_ConfigurationMismatch);
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}
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namespace {
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struct TemplightEntry {
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std::string Name;
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std::string Kind;
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std::string Event;
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std::string DefinitionLocation;
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std::string PointOfInstantiation;
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};
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} // namespace
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namespace llvm {
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namespace yaml {
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template <> struct MappingTraits<TemplightEntry> {
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static void mapping(IO &io, TemplightEntry &fields) {
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io.mapRequired("name", fields.Name);
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io.mapRequired("kind", fields.Kind);
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io.mapRequired("event", fields.Event);
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io.mapRequired("orig", fields.DefinitionLocation);
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io.mapRequired("poi", fields.PointOfInstantiation);
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}
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};
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} // namespace yaml
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} // namespace llvm
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namespace {
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class DefaultTemplateInstCallback : public TemplateInstantiationCallback {
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using CodeSynthesisContext = Sema::CodeSynthesisContext;
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public:
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void initialize(const Sema &) override {}
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void finalize(const Sema &) override {}
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void atTemplateBegin(const Sema &TheSema,
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const CodeSynthesisContext &Inst) override {
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displayTemplightEntry<true>(llvm::outs(), TheSema, Inst);
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}
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void atTemplateEnd(const Sema &TheSema,
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const CodeSynthesisContext &Inst) override {
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displayTemplightEntry<false>(llvm::outs(), TheSema, Inst);
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}
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private:
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static std::string toString(CodeSynthesisContext::SynthesisKind Kind) {
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switch (Kind) {
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case CodeSynthesisContext::TemplateInstantiation:
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return "TemplateInstantiation";
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case CodeSynthesisContext::DefaultTemplateArgumentInstantiation:
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return "DefaultTemplateArgumentInstantiation";
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case CodeSynthesisContext::DefaultFunctionArgumentInstantiation:
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return "DefaultFunctionArgumentInstantiation";
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case CodeSynthesisContext::ExplicitTemplateArgumentSubstitution:
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return "ExplicitTemplateArgumentSubstitution";
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case CodeSynthesisContext::DeducedTemplateArgumentSubstitution:
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return "DeducedTemplateArgumentSubstitution";
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case CodeSynthesisContext::PriorTemplateArgumentSubstitution:
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return "PriorTemplateArgumentSubstitution";
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case CodeSynthesisContext::DefaultTemplateArgumentChecking:
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return "DefaultTemplateArgumentChecking";
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case CodeSynthesisContext::ExceptionSpecInstantiation:
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return "ExceptionSpecInstantiation";
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case CodeSynthesisContext::DeclaringSpecialMember:
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return "DeclaringSpecialMember";
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case CodeSynthesisContext::DefiningSynthesizedFunction:
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return "DefiningSynthesizedFunction";
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case CodeSynthesisContext::Memoization:
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return "Memoization";
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}
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return "";
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}
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template <bool BeginInstantiation>
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static void displayTemplightEntry(llvm::raw_ostream &Out, const Sema &TheSema,
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const CodeSynthesisContext &Inst) {
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std::string YAML;
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{
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llvm::raw_string_ostream OS(YAML);
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llvm::yaml::Output YO(OS);
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TemplightEntry Entry =
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getTemplightEntry<BeginInstantiation>(TheSema, Inst);
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llvm::yaml::EmptyContext Context;
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llvm::yaml::yamlize(YO, Entry, true, Context);
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}
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Out << "---" << YAML << "\n";
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}
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template <bool BeginInstantiation>
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static TemplightEntry getTemplightEntry(const Sema &TheSema,
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const CodeSynthesisContext &Inst) {
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TemplightEntry Entry;
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Entry.Kind = toString(Inst.Kind);
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Entry.Event = BeginInstantiation ? "Begin" : "End";
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if (auto *NamedTemplate = dyn_cast_or_null<NamedDecl>(Inst.Entity)) {
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llvm::raw_string_ostream OS(Entry.Name);
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NamedTemplate->getNameForDiagnostic(OS, TheSema.getLangOpts(), true);
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const PresumedLoc DefLoc =
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TheSema.getSourceManager().getPresumedLoc(Inst.Entity->getLocation());
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if(!DefLoc.isInvalid())
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Entry.DefinitionLocation = std::string(DefLoc.getFilename()) + ":" +
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std::to_string(DefLoc.getLine()) + ":" +
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std::to_string(DefLoc.getColumn());
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}
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const PresumedLoc PoiLoc =
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TheSema.getSourceManager().getPresumedLoc(Inst.PointOfInstantiation);
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if (!PoiLoc.isInvalid()) {
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Entry.PointOfInstantiation = std::string(PoiLoc.getFilename()) + ":" +
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std::to_string(PoiLoc.getLine()) + ":" +
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std::to_string(PoiLoc.getColumn());
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}
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return Entry;
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}
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};
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} // namespace
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std::unique_ptr<ASTConsumer>
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TemplightDumpAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
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return llvm::make_unique<ASTConsumer>();
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}
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void TemplightDumpAction::ExecuteAction() {
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CompilerInstance &CI = getCompilerInstance();
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// This part is normally done by ASTFrontEndAction, but needs to happen
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// before Templight observers can be created
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// FIXME: Move the truncation aspect of this into Sema, we delayed this till
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// here so the source manager would be initialized.
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EnsureSemaIsCreated(CI, *this);
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CI.getSema().TemplateInstCallbacks.push_back(
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llvm::make_unique<DefaultTemplateInstCallback>());
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ASTFrontendAction::ExecuteAction();
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}
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namespace {
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/// \brief AST reader listener that dumps module information for a module
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/// file.
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class DumpModuleInfoListener : public ASTReaderListener {
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llvm::raw_ostream &Out;
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public:
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DumpModuleInfoListener(llvm::raw_ostream &Out) : Out(Out) { }
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#define DUMP_BOOLEAN(Value, Text) \
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Out.indent(4) << Text << ": " << (Value? "Yes" : "No") << "\n"
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bool ReadFullVersionInformation(StringRef FullVersion) override {
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Out.indent(2)
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<< "Generated by "
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<< (FullVersion == getClangFullRepositoryVersion()? "this"
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: "a different")
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<< " Clang: " << FullVersion << "\n";
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return ASTReaderListener::ReadFullVersionInformation(FullVersion);
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}
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void ReadModuleName(StringRef ModuleName) override {
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Out.indent(2) << "Module name: " << ModuleName << "\n";
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}
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void ReadModuleMapFile(StringRef ModuleMapPath) override {
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Out.indent(2) << "Module map file: " << ModuleMapPath << "\n";
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}
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bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain,
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bool AllowCompatibleDifferences) override {
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Out.indent(2) << "Language options:\n";
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#define LANGOPT(Name, Bits, Default, Description) \
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DUMP_BOOLEAN(LangOpts.Name, Description);
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#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
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Out.indent(4) << Description << ": " \
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<< static_cast<unsigned>(LangOpts.get##Name()) << "\n";
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#define VALUE_LANGOPT(Name, Bits, Default, Description) \
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Out.indent(4) << Description << ": " << LangOpts.Name << "\n";
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#define BENIGN_LANGOPT(Name, Bits, Default, Description)
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#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
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#include "clang/Basic/LangOptions.def"
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if (!LangOpts.ModuleFeatures.empty()) {
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Out.indent(4) << "Module features:\n";
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for (StringRef Feature : LangOpts.ModuleFeatures)
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Out.indent(6) << Feature << "\n";
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}
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return false;
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}
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bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain,
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bool AllowCompatibleDifferences) override {
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Out.indent(2) << "Target options:\n";
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Out.indent(4) << " Triple: " << TargetOpts.Triple << "\n";
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Out.indent(4) << " CPU: " << TargetOpts.CPU << "\n";
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Out.indent(4) << " ABI: " << TargetOpts.ABI << "\n";
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if (!TargetOpts.FeaturesAsWritten.empty()) {
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Out.indent(4) << "Target features:\n";
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for (unsigned I = 0, N = TargetOpts.FeaturesAsWritten.size();
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I != N; ++I) {
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Out.indent(6) << TargetOpts.FeaturesAsWritten[I] << "\n";
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}
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}
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return false;
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}
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bool ReadDiagnosticOptions(IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts,
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bool Complain) override {
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Out.indent(2) << "Diagnostic options:\n";
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#define DIAGOPT(Name, Bits, Default) DUMP_BOOLEAN(DiagOpts->Name, #Name);
|
|
#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
|
|
Out.indent(4) << #Name << ": " << DiagOpts->get##Name() << "\n";
|
|
#define VALUE_DIAGOPT(Name, Bits, Default) \
|
|
Out.indent(4) << #Name << ": " << DiagOpts->Name << "\n";
|
|
#include "clang/Basic/DiagnosticOptions.def"
|
|
|
|
Out.indent(4) << "Diagnostic flags:\n";
|
|
for (const std::string &Warning : DiagOpts->Warnings)
|
|
Out.indent(6) << "-W" << Warning << "\n";
|
|
for (const std::string &Remark : DiagOpts->Remarks)
|
|
Out.indent(6) << "-R" << Remark << "\n";
|
|
|
|
return false;
|
|
}
|
|
|
|
bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
|
|
StringRef SpecificModuleCachePath,
|
|
bool Complain) override {
|
|
Out.indent(2) << "Header search options:\n";
|
|
Out.indent(4) << "System root [-isysroot=]: '" << HSOpts.Sysroot << "'\n";
|
|
Out.indent(4) << "Resource dir [ -resource-dir=]: '" << HSOpts.ResourceDir << "'\n";
|
|
Out.indent(4) << "Module Cache: '" << SpecificModuleCachePath << "'\n";
|
|
DUMP_BOOLEAN(HSOpts.UseBuiltinIncludes,
|
|
"Use builtin include directories [-nobuiltininc]");
|
|
DUMP_BOOLEAN(HSOpts.UseStandardSystemIncludes,
|
|
"Use standard system include directories [-nostdinc]");
|
|
DUMP_BOOLEAN(HSOpts.UseStandardCXXIncludes,
|
|
"Use standard C++ include directories [-nostdinc++]");
|
|
DUMP_BOOLEAN(HSOpts.UseLibcxx,
|
|
"Use libc++ (rather than libstdc++) [-stdlib=]");
|
|
return false;
|
|
}
|
|
|
|
bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
|
|
bool Complain,
|
|
std::string &SuggestedPredefines) override {
|
|
Out.indent(2) << "Preprocessor options:\n";
|
|
DUMP_BOOLEAN(PPOpts.UsePredefines,
|
|
"Uses compiler/target-specific predefines [-undef]");
|
|
DUMP_BOOLEAN(PPOpts.DetailedRecord,
|
|
"Uses detailed preprocessing record (for indexing)");
|
|
|
|
if (!PPOpts.Macros.empty()) {
|
|
Out.indent(4) << "Predefined macros:\n";
|
|
}
|
|
|
|
for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
|
|
I = PPOpts.Macros.begin(), IEnd = PPOpts.Macros.end();
|
|
I != IEnd; ++I) {
|
|
Out.indent(6);
|
|
if (I->second)
|
|
Out << "-U";
|
|
else
|
|
Out << "-D";
|
|
Out << I->first << "\n";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Indicates that a particular module file extension has been read.
|
|
void readModuleFileExtension(
|
|
const ModuleFileExtensionMetadata &Metadata) override {
|
|
Out.indent(2) << "Module file extension '"
|
|
<< Metadata.BlockName << "' " << Metadata.MajorVersion
|
|
<< "." << Metadata.MinorVersion;
|
|
if (!Metadata.UserInfo.empty()) {
|
|
Out << ": ";
|
|
Out.write_escaped(Metadata.UserInfo);
|
|
}
|
|
|
|
Out << "\n";
|
|
}
|
|
#undef DUMP_BOOLEAN
|
|
};
|
|
}
|
|
|
|
bool DumpModuleInfoAction::BeginInvocation(CompilerInstance &CI) {
|
|
// The Object file reader also supports raw ast files and there is no point in
|
|
// being strict about the module file format in -module-file-info mode.
|
|
CI.getHeaderSearchOpts().ModuleFormat = "obj";
|
|
return true;
|
|
}
|
|
|
|
void DumpModuleInfoAction::ExecuteAction() {
|
|
// Set up the output file.
|
|
std::unique_ptr<llvm::raw_fd_ostream> OutFile;
|
|
StringRef OutputFileName = getCompilerInstance().getFrontendOpts().OutputFile;
|
|
if (!OutputFileName.empty() && OutputFileName != "-") {
|
|
std::error_code EC;
|
|
OutFile.reset(new llvm::raw_fd_ostream(OutputFileName.str(), EC,
|
|
llvm::sys::fs::F_Text));
|
|
}
|
|
llvm::raw_ostream &Out = OutFile.get()? *OutFile.get() : llvm::outs();
|
|
|
|
Out << "Information for module file '" << getCurrentFile() << "':\n";
|
|
auto &FileMgr = getCompilerInstance().getFileManager();
|
|
auto Buffer = FileMgr.getBufferForFile(getCurrentFile());
|
|
StringRef Magic = (*Buffer)->getMemBufferRef().getBuffer();
|
|
bool IsRaw = (Magic.size() >= 4 && Magic[0] == 'C' && Magic[1] == 'P' &&
|
|
Magic[2] == 'C' && Magic[3] == 'H');
|
|
Out << " Module format: " << (IsRaw ? "raw" : "obj") << "\n";
|
|
|
|
Preprocessor &PP = getCompilerInstance().getPreprocessor();
|
|
DumpModuleInfoListener Listener(Out);
|
|
HeaderSearchOptions &HSOpts =
|
|
PP.getHeaderSearchInfo().getHeaderSearchOpts();
|
|
ASTReader::readASTFileControlBlock(
|
|
getCurrentFile(), FileMgr, getCompilerInstance().getPCHContainerReader(),
|
|
/*FindModuleFileExtensions=*/true, Listener,
|
|
HSOpts.ModulesValidateDiagnosticOptions);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Preprocessor Actions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void DumpRawTokensAction::ExecuteAction() {
|
|
Preprocessor &PP = getCompilerInstance().getPreprocessor();
|
|
SourceManager &SM = PP.getSourceManager();
|
|
|
|
// Start lexing the specified input file.
|
|
const llvm::MemoryBuffer *FromFile = SM.getBuffer(SM.getMainFileID());
|
|
Lexer RawLex(SM.getMainFileID(), FromFile, SM, PP.getLangOpts());
|
|
RawLex.SetKeepWhitespaceMode(true);
|
|
|
|
Token RawTok;
|
|
RawLex.LexFromRawLexer(RawTok);
|
|
while (RawTok.isNot(tok::eof)) {
|
|
PP.DumpToken(RawTok, true);
|
|
llvm::errs() << "\n";
|
|
RawLex.LexFromRawLexer(RawTok);
|
|
}
|
|
}
|
|
|
|
void DumpTokensAction::ExecuteAction() {
|
|
Preprocessor &PP = getCompilerInstance().getPreprocessor();
|
|
// Start preprocessing the specified input file.
|
|
Token Tok;
|
|
PP.EnterMainSourceFile();
|
|
do {
|
|
PP.Lex(Tok);
|
|
PP.DumpToken(Tok, true);
|
|
llvm::errs() << "\n";
|
|
} while (Tok.isNot(tok::eof));
|
|
}
|
|
|
|
void GeneratePTHAction::ExecuteAction() {
|
|
CompilerInstance &CI = getCompilerInstance();
|
|
std::unique_ptr<raw_pwrite_stream> OS =
|
|
CI.createDefaultOutputFile(true, getCurrentFile());
|
|
if (!OS)
|
|
return;
|
|
|
|
CacheTokens(CI.getPreprocessor(), OS.get());
|
|
}
|
|
|
|
void PreprocessOnlyAction::ExecuteAction() {
|
|
Preprocessor &PP = getCompilerInstance().getPreprocessor();
|
|
|
|
// Ignore unknown pragmas.
|
|
PP.IgnorePragmas();
|
|
|
|
Token Tok;
|
|
// Start parsing the specified input file.
|
|
PP.EnterMainSourceFile();
|
|
do {
|
|
PP.Lex(Tok);
|
|
} while (Tok.isNot(tok::eof));
|
|
}
|
|
|
|
void PrintPreprocessedAction::ExecuteAction() {
|
|
CompilerInstance &CI = getCompilerInstance();
|
|
// Output file may need to be set to 'Binary', to avoid converting Unix style
|
|
// line feeds (<LF>) to Microsoft style line feeds (<CR><LF>).
|
|
//
|
|
// Look to see what type of line endings the file uses. If there's a
|
|
// CRLF, then we won't open the file up in binary mode. If there is
|
|
// just an LF or CR, then we will open the file up in binary mode.
|
|
// In this fashion, the output format should match the input format, unless
|
|
// the input format has inconsistent line endings.
|
|
//
|
|
// This should be a relatively fast operation since most files won't have
|
|
// all of their source code on a single line. However, that is still a
|
|
// concern, so if we scan for too long, we'll just assume the file should
|
|
// be opened in binary mode.
|
|
bool BinaryMode = true;
|
|
bool InvalidFile = false;
|
|
const SourceManager& SM = CI.getSourceManager();
|
|
const llvm::MemoryBuffer *Buffer = SM.getBuffer(SM.getMainFileID(),
|
|
&InvalidFile);
|
|
if (!InvalidFile) {
|
|
const char *cur = Buffer->getBufferStart();
|
|
const char *end = Buffer->getBufferEnd();
|
|
const char *next = (cur != end) ? cur + 1 : end;
|
|
|
|
// Limit ourselves to only scanning 256 characters into the source
|
|
// file. This is mostly a sanity check in case the file has no
|
|
// newlines whatsoever.
|
|
if (end - cur > 256) end = cur + 256;
|
|
|
|
while (next < end) {
|
|
if (*cur == 0x0D) { // CR
|
|
if (*next == 0x0A) // CRLF
|
|
BinaryMode = false;
|
|
|
|
break;
|
|
} else if (*cur == 0x0A) // LF
|
|
break;
|
|
|
|
++cur;
|
|
++next;
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<raw_ostream> OS =
|
|
CI.createDefaultOutputFile(BinaryMode, getCurrentFile());
|
|
if (!OS) return;
|
|
|
|
// 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";
|
|
}
|
|
// FIXME: Include additional information here so that we don't need the
|
|
// original source files to exist on disk.
|
|
getCurrentModule()->print(*OS);
|
|
(*OS) << "#pragma clang module contents\n";
|
|
}
|
|
|
|
DoPrintPreprocessedInput(CI.getPreprocessor(), OS.get(),
|
|
CI.getPreprocessorOutputOpts());
|
|
}
|
|
|
|
void PrintPreambleAction::ExecuteAction() {
|
|
switch (getCurrentFileKind().getLanguage()) {
|
|
case InputKind::C:
|
|
case InputKind::CXX:
|
|
case InputKind::ObjC:
|
|
case InputKind::ObjCXX:
|
|
case InputKind::OpenCL:
|
|
case InputKind::CUDA:
|
|
break;
|
|
|
|
case InputKind::Unknown:
|
|
case InputKind::Asm:
|
|
case InputKind::LLVM_IR:
|
|
case InputKind::RenderScript:
|
|
// We can't do anything with these.
|
|
return;
|
|
}
|
|
|
|
// We don't expect to find any #include directives in a preprocessed input.
|
|
if (getCurrentFileKind().isPreprocessed())
|
|
return;
|
|
|
|
CompilerInstance &CI = getCompilerInstance();
|
|
auto Buffer = CI.getFileManager().getBufferForFile(getCurrentFile());
|
|
if (Buffer) {
|
|
unsigned Preamble =
|
|
Lexer::ComputePreamble((*Buffer)->getBuffer(), CI.getLangOpts()).Size;
|
|
llvm::outs().write((*Buffer)->getBufferStart(), Preamble);
|
|
}
|
|
}
|