forked from OSchip/llvm-project
626 lines
22 KiB
C++
626 lines
22 KiB
C++
//===--- FrontendAction.cpp -----------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/Frontend/FrontendAction.h"
|
|
#include "clang/AST/ASTConsumer.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/DeclGroup.h"
|
|
#include "clang/Frontend/ASTUnit.h"
|
|
#include "clang/Frontend/CompilerInstance.h"
|
|
#include "clang/Frontend/FrontendDiagnostic.h"
|
|
#include "clang/Frontend/FrontendPluginRegistry.h"
|
|
#include "clang/Frontend/LayoutOverrideSource.h"
|
|
#include "clang/Frontend/MultiplexConsumer.h"
|
|
#include "clang/Frontend/Utils.h"
|
|
#include "clang/Lex/HeaderSearch.h"
|
|
#include "clang/Lex/Preprocessor.h"
|
|
#include "clang/Lex/PreprocessorOptions.h"
|
|
#include "clang/Parse/ParseAST.h"
|
|
#include "clang/Serialization/ASTDeserializationListener.h"
|
|
#include "clang/Serialization/ASTReader.h"
|
|
#include "clang/Serialization/GlobalModuleIndex.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/Timer.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <system_error>
|
|
using namespace clang;
|
|
|
|
LLVM_INSTANTIATE_REGISTRY(FrontendPluginRegistry)
|
|
|
|
namespace {
|
|
|
|
class DelegatingDeserializationListener : public ASTDeserializationListener {
|
|
ASTDeserializationListener *Previous;
|
|
bool DeletePrevious;
|
|
|
|
public:
|
|
explicit DelegatingDeserializationListener(
|
|
ASTDeserializationListener *Previous, bool DeletePrevious)
|
|
: Previous(Previous), DeletePrevious(DeletePrevious) {}
|
|
~DelegatingDeserializationListener() override {
|
|
if (DeletePrevious)
|
|
delete Previous;
|
|
}
|
|
|
|
void ReaderInitialized(ASTReader *Reader) override {
|
|
if (Previous)
|
|
Previous->ReaderInitialized(Reader);
|
|
}
|
|
void IdentifierRead(serialization::IdentID ID,
|
|
IdentifierInfo *II) override {
|
|
if (Previous)
|
|
Previous->IdentifierRead(ID, II);
|
|
}
|
|
void TypeRead(serialization::TypeIdx Idx, QualType T) override {
|
|
if (Previous)
|
|
Previous->TypeRead(Idx, T);
|
|
}
|
|
void DeclRead(serialization::DeclID ID, const Decl *D) override {
|
|
if (Previous)
|
|
Previous->DeclRead(ID, D);
|
|
}
|
|
void SelectorRead(serialization::SelectorID ID, Selector Sel) override {
|
|
if (Previous)
|
|
Previous->SelectorRead(ID, Sel);
|
|
}
|
|
void MacroDefinitionRead(serialization::PreprocessedEntityID PPID,
|
|
MacroDefinitionRecord *MD) override {
|
|
if (Previous)
|
|
Previous->MacroDefinitionRead(PPID, MD);
|
|
}
|
|
};
|
|
|
|
/// \brief Dumps deserialized declarations.
|
|
class DeserializedDeclsDumper : public DelegatingDeserializationListener {
|
|
public:
|
|
explicit DeserializedDeclsDumper(ASTDeserializationListener *Previous,
|
|
bool DeletePrevious)
|
|
: DelegatingDeserializationListener(Previous, DeletePrevious) {}
|
|
|
|
void DeclRead(serialization::DeclID ID, const Decl *D) override {
|
|
llvm::outs() << "PCH DECL: " << D->getDeclKindName();
|
|
if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
|
|
llvm::outs() << " - " << *ND;
|
|
llvm::outs() << "\n";
|
|
|
|
DelegatingDeserializationListener::DeclRead(ID, D);
|
|
}
|
|
};
|
|
|
|
/// \brief Checks deserialized declarations and emits error if a name
|
|
/// matches one given in command-line using -error-on-deserialized-decl.
|
|
class DeserializedDeclsChecker : public DelegatingDeserializationListener {
|
|
ASTContext &Ctx;
|
|
std::set<std::string> NamesToCheck;
|
|
|
|
public:
|
|
DeserializedDeclsChecker(ASTContext &Ctx,
|
|
const std::set<std::string> &NamesToCheck,
|
|
ASTDeserializationListener *Previous,
|
|
bool DeletePrevious)
|
|
: DelegatingDeserializationListener(Previous, DeletePrevious), Ctx(Ctx),
|
|
NamesToCheck(NamesToCheck) {}
|
|
|
|
void DeclRead(serialization::DeclID ID, const Decl *D) override {
|
|
if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
|
|
if (NamesToCheck.find(ND->getNameAsString()) != NamesToCheck.end()) {
|
|
unsigned DiagID
|
|
= Ctx.getDiagnostics().getCustomDiagID(DiagnosticsEngine::Error,
|
|
"%0 was deserialized");
|
|
Ctx.getDiagnostics().Report(Ctx.getFullLoc(D->getLocation()), DiagID)
|
|
<< ND->getNameAsString();
|
|
}
|
|
|
|
DelegatingDeserializationListener::DeclRead(ID, D);
|
|
}
|
|
};
|
|
|
|
} // end anonymous namespace
|
|
|
|
FrontendAction::FrontendAction() : Instance(nullptr) {}
|
|
|
|
FrontendAction::~FrontendAction() {}
|
|
|
|
void FrontendAction::setCurrentInput(const FrontendInputFile &CurrentInput,
|
|
std::unique_ptr<ASTUnit> AST) {
|
|
this->CurrentInput = CurrentInput;
|
|
CurrentASTUnit = std::move(AST);
|
|
}
|
|
|
|
std::unique_ptr<ASTConsumer>
|
|
FrontendAction::CreateWrappedASTConsumer(CompilerInstance &CI,
|
|
StringRef InFile) {
|
|
std::unique_ptr<ASTConsumer> Consumer = CreateASTConsumer(CI, InFile);
|
|
if (!Consumer)
|
|
return nullptr;
|
|
|
|
// If there are no registered plugins we don't need to wrap the consumer
|
|
if (FrontendPluginRegistry::begin() == FrontendPluginRegistry::end())
|
|
return Consumer;
|
|
|
|
// Collect the list of plugins that go before the main action (in Consumers)
|
|
// or after it (in AfterConsumers)
|
|
std::vector<std::unique_ptr<ASTConsumer>> Consumers;
|
|
std::vector<std::unique_ptr<ASTConsumer>> AfterConsumers;
|
|
for (FrontendPluginRegistry::iterator it = FrontendPluginRegistry::begin(),
|
|
ie = FrontendPluginRegistry::end();
|
|
it != ie; ++it) {
|
|
std::unique_ptr<PluginASTAction> P = it->instantiate();
|
|
PluginASTAction::ActionType ActionType = P->getActionType();
|
|
if (ActionType == PluginASTAction::Cmdline) {
|
|
// This is O(|plugins| * |add_plugins|), but since both numbers are
|
|
// way below 50 in practice, that's ok.
|
|
for (size_t i = 0, e = CI.getFrontendOpts().AddPluginActions.size();
|
|
i != e; ++i) {
|
|
if (it->getName() == CI.getFrontendOpts().AddPluginActions[i]) {
|
|
ActionType = PluginASTAction::AddAfterMainAction;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if ((ActionType == PluginASTAction::AddBeforeMainAction ||
|
|
ActionType == PluginASTAction::AddAfterMainAction) &&
|
|
P->ParseArgs(CI, CI.getFrontendOpts().PluginArgs[it->getName()])) {
|
|
std::unique_ptr<ASTConsumer> PluginConsumer = P->CreateASTConsumer(CI, InFile);
|
|
if (ActionType == PluginASTAction::AddBeforeMainAction) {
|
|
Consumers.push_back(std::move(PluginConsumer));
|
|
} else {
|
|
AfterConsumers.push_back(std::move(PluginConsumer));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add to Consumers the main consumer, then all the plugins that go after it
|
|
Consumers.push_back(std::move(Consumer));
|
|
for (auto &C : AfterConsumers) {
|
|
Consumers.push_back(std::move(C));
|
|
}
|
|
|
|
return llvm::make_unique<MultiplexConsumer>(std::move(Consumers));
|
|
}
|
|
|
|
bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
|
|
const FrontendInputFile &Input) {
|
|
assert(!Instance && "Already processing a source file!");
|
|
assert(!Input.isEmpty() && "Unexpected empty filename!");
|
|
setCurrentInput(Input);
|
|
setCompilerInstance(&CI);
|
|
|
|
StringRef InputFile = Input.getFile();
|
|
bool HasBegunSourceFile = false;
|
|
if (!BeginInvocation(CI))
|
|
goto failure;
|
|
|
|
// AST files follow a very different path, since they share objects via the
|
|
// AST unit.
|
|
if (Input.getKind() == IK_AST) {
|
|
assert(!usesPreprocessorOnly() &&
|
|
"Attempt to pass AST file to preprocessor only action!");
|
|
assert(hasASTFileSupport() &&
|
|
"This action does not have AST file support!");
|
|
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags(&CI.getDiagnostics());
|
|
|
|
std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromASTFile(
|
|
InputFile, CI.getPCHContainerReader(), Diags, CI.getFileSystemOpts(),
|
|
CI.getCodeGenOpts().DebugTypeExtRefs);
|
|
|
|
if (!AST)
|
|
goto failure;
|
|
|
|
// Inform the diagnostic client we are processing a source file.
|
|
CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), nullptr);
|
|
HasBegunSourceFile = true;
|
|
|
|
// Set the shared objects, these are reset when we finish processing the
|
|
// file, otherwise the CompilerInstance will happily destroy them.
|
|
CI.setFileManager(&AST->getFileManager());
|
|
CI.setSourceManager(&AST->getSourceManager());
|
|
CI.setPreprocessor(AST->getPreprocessorPtr());
|
|
Preprocessor &PP = CI.getPreprocessor();
|
|
PP.getBuiltinInfo().initializeBuiltins(PP.getIdentifierTable(),
|
|
PP.getLangOpts());
|
|
CI.setASTContext(&AST->getASTContext());
|
|
|
|
setCurrentInput(Input, std::move(AST));
|
|
|
|
// Initialize the action.
|
|
if (!BeginSourceFileAction(CI, InputFile))
|
|
goto failure;
|
|
|
|
// Create the AST consumer.
|
|
CI.setASTConsumer(CreateWrappedASTConsumer(CI, InputFile));
|
|
if (!CI.hasASTConsumer())
|
|
goto failure;
|
|
|
|
return true;
|
|
}
|
|
|
|
if (!CI.hasVirtualFileSystem()) {
|
|
if (IntrusiveRefCntPtr<vfs::FileSystem> VFS =
|
|
createVFSFromCompilerInvocation(CI.getInvocation(),
|
|
CI.getDiagnostics()))
|
|
CI.setVirtualFileSystem(VFS);
|
|
else
|
|
goto failure;
|
|
}
|
|
|
|
// Set up the file and source managers, if needed.
|
|
if (!CI.hasFileManager())
|
|
CI.createFileManager();
|
|
if (!CI.hasSourceManager())
|
|
CI.createSourceManager(CI.getFileManager());
|
|
|
|
// IR files bypass the rest of initialization.
|
|
if (Input.getKind() == IK_LLVM_IR) {
|
|
assert(hasIRSupport() &&
|
|
"This action does not have IR file support!");
|
|
|
|
// Inform the diagnostic client we are processing a source file.
|
|
CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), nullptr);
|
|
HasBegunSourceFile = true;
|
|
|
|
// Initialize the action.
|
|
if (!BeginSourceFileAction(CI, InputFile))
|
|
goto failure;
|
|
|
|
// Initialize the main file entry.
|
|
if (!CI.InitializeSourceManager(CurrentInput))
|
|
goto failure;
|
|
|
|
return true;
|
|
}
|
|
|
|
// If the implicit PCH include is actually a directory, rather than
|
|
// a single file, search for a suitable PCH file in that directory.
|
|
if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
|
|
FileManager &FileMgr = CI.getFileManager();
|
|
PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
|
|
StringRef PCHInclude = PPOpts.ImplicitPCHInclude;
|
|
std::string SpecificModuleCachePath = CI.getSpecificModuleCachePath();
|
|
if (const DirectoryEntry *PCHDir = FileMgr.getDirectory(PCHInclude)) {
|
|
std::error_code EC;
|
|
SmallString<128> DirNative;
|
|
llvm::sys::path::native(PCHDir->getName(), DirNative);
|
|
bool Found = false;
|
|
vfs::FileSystem &FS = *FileMgr.getVirtualFileSystem();
|
|
for (vfs::directory_iterator Dir = FS.dir_begin(DirNative, EC), DirEnd;
|
|
Dir != DirEnd && !EC; Dir.increment(EC)) {
|
|
// Check whether this is an acceptable AST file.
|
|
if (ASTReader::isAcceptableASTFile(
|
|
Dir->getName(), FileMgr, CI.getPCHContainerReader(),
|
|
CI.getLangOpts(), CI.getTargetOpts(), CI.getPreprocessorOpts(),
|
|
SpecificModuleCachePath)) {
|
|
PPOpts.ImplicitPCHInclude = Dir->getName();
|
|
Found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!Found) {
|
|
CI.getDiagnostics().Report(diag::err_fe_no_pch_in_dir) << PCHInclude;
|
|
goto failure;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set up the preprocessor if needed. When parsing model files the
|
|
// preprocessor of the original source is reused.
|
|
if (!isModelParsingAction())
|
|
CI.createPreprocessor(getTranslationUnitKind());
|
|
|
|
// Inform the diagnostic client we are processing a source file.
|
|
CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(),
|
|
&CI.getPreprocessor());
|
|
HasBegunSourceFile = true;
|
|
|
|
// Initialize the action.
|
|
if (!BeginSourceFileAction(CI, InputFile))
|
|
goto failure;
|
|
|
|
// Initialize the main file entry. It is important that this occurs after
|
|
// BeginSourceFileAction, which may change CurrentInput during module builds.
|
|
if (!CI.InitializeSourceManager(CurrentInput))
|
|
goto failure;
|
|
|
|
// Create the AST context and consumer unless this is a preprocessor only
|
|
// action.
|
|
if (!usesPreprocessorOnly()) {
|
|
// Parsing a model file should reuse the existing ASTContext.
|
|
if (!isModelParsingAction())
|
|
CI.createASTContext();
|
|
|
|
std::unique_ptr<ASTConsumer> Consumer =
|
|
CreateWrappedASTConsumer(CI, InputFile);
|
|
if (!Consumer)
|
|
goto failure;
|
|
|
|
// FIXME: should not overwrite ASTMutationListener when parsing model files?
|
|
if (!isModelParsingAction())
|
|
CI.getASTContext().setASTMutationListener(Consumer->GetASTMutationListener());
|
|
|
|
if (!CI.getPreprocessorOpts().ChainedIncludes.empty()) {
|
|
// Convert headers to PCH and chain them.
|
|
IntrusiveRefCntPtr<ExternalSemaSource> source, FinalReader;
|
|
source = createChainedIncludesSource(CI, FinalReader);
|
|
if (!source)
|
|
goto failure;
|
|
CI.setModuleManager(static_cast<ASTReader *>(FinalReader.get()));
|
|
CI.getASTContext().setExternalSource(source);
|
|
} else if (CI.getLangOpts().Modules ||
|
|
!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
|
|
// Use PCM or PCH.
|
|
assert(hasPCHSupport() && "This action does not have PCH support!");
|
|
ASTDeserializationListener *DeserialListener =
|
|
Consumer->GetASTDeserializationListener();
|
|
bool DeleteDeserialListener = false;
|
|
if (CI.getPreprocessorOpts().DumpDeserializedPCHDecls) {
|
|
DeserialListener = new DeserializedDeclsDumper(DeserialListener,
|
|
DeleteDeserialListener);
|
|
DeleteDeserialListener = true;
|
|
}
|
|
if (!CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn.empty()) {
|
|
DeserialListener = new DeserializedDeclsChecker(
|
|
CI.getASTContext(),
|
|
CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn,
|
|
DeserialListener, DeleteDeserialListener);
|
|
DeleteDeserialListener = true;
|
|
}
|
|
if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
|
|
CI.createPCHExternalASTSource(
|
|
CI.getPreprocessorOpts().ImplicitPCHInclude,
|
|
CI.getPreprocessorOpts().DisablePCHValidation,
|
|
CI.getPreprocessorOpts().AllowPCHWithCompilerErrors, DeserialListener,
|
|
DeleteDeserialListener);
|
|
if (!CI.getASTContext().getExternalSource())
|
|
goto failure;
|
|
}
|
|
// If modules are enabled, create the module manager before creating
|
|
// any builtins, so that all declarations know that they might be
|
|
// extended by an external source.
|
|
if (CI.getLangOpts().Modules || !CI.hasASTContext() ||
|
|
!CI.getASTContext().getExternalSource()) {
|
|
CI.createModuleManager();
|
|
CI.getModuleManager()->setDeserializationListener(DeserialListener,
|
|
DeleteDeserialListener);
|
|
}
|
|
}
|
|
|
|
CI.setASTConsumer(std::move(Consumer));
|
|
if (!CI.hasASTConsumer())
|
|
goto failure;
|
|
}
|
|
|
|
// Initialize built-in info as long as we aren't using an external AST
|
|
// source.
|
|
if (CI.getLangOpts().Modules || !CI.hasASTContext() ||
|
|
!CI.getASTContext().getExternalSource()) {
|
|
Preprocessor &PP = CI.getPreprocessor();
|
|
PP.getBuiltinInfo().initializeBuiltins(PP.getIdentifierTable(),
|
|
PP.getLangOpts());
|
|
} else {
|
|
// FIXME: If this is a problem, recover from it by creating a multiplex
|
|
// source.
|
|
assert((!CI.getLangOpts().Modules || CI.getModuleManager()) &&
|
|
"modules enabled but created an external source that "
|
|
"doesn't support modules");
|
|
}
|
|
|
|
// If we were asked to load any module map files, do so now.
|
|
for (const auto &Filename : CI.getFrontendOpts().ModuleMapFiles) {
|
|
if (auto *File = CI.getFileManager().getFile(Filename))
|
|
CI.getPreprocessor().getHeaderSearchInfo().loadModuleMapFile(
|
|
File, /*IsSystem*/false);
|
|
else
|
|
CI.getDiagnostics().Report(diag::err_module_map_not_found) << Filename;
|
|
}
|
|
|
|
// If we were asked to load any module files, do so now.
|
|
for (const auto &ModuleFile : CI.getFrontendOpts().ModuleFiles)
|
|
if (!CI.loadModuleFile(ModuleFile))
|
|
goto failure;
|
|
|
|
// If there is a layout overrides file, attach an external AST source that
|
|
// provides the layouts from that file.
|
|
if (!CI.getFrontendOpts().OverrideRecordLayoutsFile.empty() &&
|
|
CI.hasASTContext() && !CI.getASTContext().getExternalSource()) {
|
|
IntrusiveRefCntPtr<ExternalASTSource>
|
|
Override(new LayoutOverrideSource(
|
|
CI.getFrontendOpts().OverrideRecordLayoutsFile));
|
|
CI.getASTContext().setExternalSource(Override);
|
|
}
|
|
|
|
return true;
|
|
|
|
// If we failed, reset state since the client will not end up calling the
|
|
// matching EndSourceFile().
|
|
failure:
|
|
if (isCurrentFileAST()) {
|
|
CI.setASTContext(nullptr);
|
|
CI.setPreprocessor(nullptr);
|
|
CI.setSourceManager(nullptr);
|
|
CI.setFileManager(nullptr);
|
|
}
|
|
|
|
if (HasBegunSourceFile)
|
|
CI.getDiagnosticClient().EndSourceFile();
|
|
CI.clearOutputFiles(/*EraseFiles=*/true);
|
|
setCurrentInput(FrontendInputFile());
|
|
setCompilerInstance(nullptr);
|
|
return false;
|
|
}
|
|
|
|
bool FrontendAction::Execute() {
|
|
CompilerInstance &CI = getCompilerInstance();
|
|
|
|
if (CI.hasFrontendTimer()) {
|
|
llvm::TimeRegion Timer(CI.getFrontendTimer());
|
|
ExecuteAction();
|
|
}
|
|
else ExecuteAction();
|
|
|
|
// If we are supposed to rebuild the global module index, do so now unless
|
|
// there were any module-build failures.
|
|
if (CI.shouldBuildGlobalModuleIndex() && CI.hasFileManager() &&
|
|
CI.hasPreprocessor()) {
|
|
StringRef Cache =
|
|
CI.getPreprocessor().getHeaderSearchInfo().getModuleCachePath();
|
|
if (!Cache.empty())
|
|
GlobalModuleIndex::writeIndex(CI.getFileManager(),
|
|
CI.getPCHContainerReader(), Cache);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void FrontendAction::EndSourceFile() {
|
|
CompilerInstance &CI = getCompilerInstance();
|
|
|
|
// Inform the diagnostic client we are done with this source file.
|
|
CI.getDiagnosticClient().EndSourceFile();
|
|
|
|
// Inform the preprocessor we are done.
|
|
if (CI.hasPreprocessor())
|
|
CI.getPreprocessor().EndSourceFile();
|
|
|
|
// Finalize the action.
|
|
EndSourceFileAction();
|
|
|
|
// Sema references the ast consumer, so reset sema first.
|
|
//
|
|
// FIXME: There is more per-file stuff we could just drop here?
|
|
bool DisableFree = CI.getFrontendOpts().DisableFree;
|
|
if (DisableFree) {
|
|
CI.resetAndLeakSema();
|
|
CI.resetAndLeakASTContext();
|
|
BuryPointer(CI.takeASTConsumer().get());
|
|
} else {
|
|
CI.setSema(nullptr);
|
|
CI.setASTContext(nullptr);
|
|
CI.setASTConsumer(nullptr);
|
|
}
|
|
|
|
if (CI.getFrontendOpts().ShowStats) {
|
|
llvm::errs() << "\nSTATISTICS FOR '" << getCurrentFile() << "':\n";
|
|
CI.getPreprocessor().PrintStats();
|
|
CI.getPreprocessor().getIdentifierTable().PrintStats();
|
|
CI.getPreprocessor().getHeaderSearchInfo().PrintStats();
|
|
CI.getSourceManager().PrintStats();
|
|
llvm::errs() << "\n";
|
|
}
|
|
|
|
// Cleanup the output streams, and erase the output files if instructed by the
|
|
// FrontendAction.
|
|
CI.clearOutputFiles(/*EraseFiles=*/shouldEraseOutputFiles());
|
|
|
|
if (isCurrentFileAST()) {
|
|
if (DisableFree) {
|
|
CI.resetAndLeakPreprocessor();
|
|
CI.resetAndLeakSourceManager();
|
|
CI.resetAndLeakFileManager();
|
|
} else {
|
|
CI.setPreprocessor(nullptr);
|
|
CI.setSourceManager(nullptr);
|
|
CI.setFileManager(nullptr);
|
|
}
|
|
}
|
|
|
|
setCompilerInstance(nullptr);
|
|
setCurrentInput(FrontendInputFile());
|
|
}
|
|
|
|
bool FrontendAction::shouldEraseOutputFiles() {
|
|
return getCompilerInstance().getDiagnostics().hasErrorOccurred();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Utility Actions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void ASTFrontendAction::ExecuteAction() {
|
|
CompilerInstance &CI = getCompilerInstance();
|
|
if (!CI.hasPreprocessor())
|
|
return;
|
|
|
|
// FIXME: Move the truncation aspect of this into Sema, we delayed this till
|
|
// here so the source manager would be initialized.
|
|
if (hasCodeCompletionSupport() &&
|
|
!CI.getFrontendOpts().CodeCompletionAt.FileName.empty())
|
|
CI.createCodeCompletionConsumer();
|
|
|
|
// Use a code completion consumer?
|
|
CodeCompleteConsumer *CompletionConsumer = nullptr;
|
|
if (CI.hasCodeCompletionConsumer())
|
|
CompletionConsumer = &CI.getCodeCompletionConsumer();
|
|
|
|
if (!CI.hasSema())
|
|
CI.createSema(getTranslationUnitKind(), CompletionConsumer);
|
|
|
|
ParseAST(CI.getSema(), CI.getFrontendOpts().ShowStats,
|
|
CI.getFrontendOpts().SkipFunctionBodies);
|
|
}
|
|
|
|
void PluginASTAction::anchor() { }
|
|
|
|
std::unique_ptr<ASTConsumer>
|
|
PreprocessorFrontendAction::CreateASTConsumer(CompilerInstance &CI,
|
|
StringRef InFile) {
|
|
llvm_unreachable("Invalid CreateASTConsumer on preprocessor action!");
|
|
}
|
|
|
|
std::unique_ptr<ASTConsumer>
|
|
WrapperFrontendAction::CreateASTConsumer(CompilerInstance &CI,
|
|
StringRef InFile) {
|
|
return WrappedAction->CreateASTConsumer(CI, InFile);
|
|
}
|
|
bool WrapperFrontendAction::BeginInvocation(CompilerInstance &CI) {
|
|
return WrappedAction->BeginInvocation(CI);
|
|
}
|
|
bool WrapperFrontendAction::BeginSourceFileAction(CompilerInstance &CI,
|
|
StringRef Filename) {
|
|
WrappedAction->setCurrentInput(getCurrentInput());
|
|
WrappedAction->setCompilerInstance(&CI);
|
|
auto Ret = WrappedAction->BeginSourceFileAction(CI, Filename);
|
|
// BeginSourceFileAction may change CurrentInput, e.g. during module builds.
|
|
setCurrentInput(WrappedAction->getCurrentInput());
|
|
return Ret;
|
|
}
|
|
void WrapperFrontendAction::ExecuteAction() {
|
|
WrappedAction->ExecuteAction();
|
|
}
|
|
void WrapperFrontendAction::EndSourceFileAction() {
|
|
WrappedAction->EndSourceFileAction();
|
|
}
|
|
|
|
bool WrapperFrontendAction::usesPreprocessorOnly() const {
|
|
return WrappedAction->usesPreprocessorOnly();
|
|
}
|
|
TranslationUnitKind WrapperFrontendAction::getTranslationUnitKind() {
|
|
return WrappedAction->getTranslationUnitKind();
|
|
}
|
|
bool WrapperFrontendAction::hasPCHSupport() const {
|
|
return WrappedAction->hasPCHSupport();
|
|
}
|
|
bool WrapperFrontendAction::hasASTFileSupport() const {
|
|
return WrappedAction->hasASTFileSupport();
|
|
}
|
|
bool WrapperFrontendAction::hasIRSupport() const {
|
|
return WrappedAction->hasIRSupport();
|
|
}
|
|
bool WrapperFrontendAction::hasCodeCompletionSupport() const {
|
|
return WrappedAction->hasCodeCompletionSupport();
|
|
}
|
|
|
|
WrapperFrontendAction::WrapperFrontendAction(
|
|
std::unique_ptr<FrontendAction> WrappedAction)
|
|
: WrappedAction(std::move(WrappedAction)) {}
|
|
|