forked from OSchip/llvm-project
2719 lines
96 KiB
C++
2719 lines
96 KiB
C++
//===- ASTUnit.cpp - ASTUnit utility --------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// ASTUnit Implementation.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/ASTUnit.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/CommentCommandTraits.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclBase.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclGroup.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/AST/DeclarationName.h"
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#include "clang/AST/ExternalASTSource.h"
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#include "clang/AST/PrettyPrinter.h"
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#include "clang/AST/Type.h"
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#include "clang/AST/TypeOrdering.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/IdentifierTable.h"
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#include "clang/Basic/LLVM.h"
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#include "clang/Basic/LangOptions.h"
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#include "clang/Basic/LangStandard.h"
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#include "clang/Basic/Module.h"
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#include "clang/Basic/SourceLocation.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Basic/TargetOptions.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/CompilerInvocation.h"
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#include "clang/Frontend/FrontendAction.h"
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/Frontend/FrontendOptions.h"
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#include "clang/Frontend/MultiplexConsumer.h"
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#include "clang/Frontend/PrecompiledPreamble.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/HeaderSearchOptions.h"
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#include "clang/Lex/Lexer.h"
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#include "clang/Lex/PPCallbacks.h"
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#include "clang/Lex/PreprocessingRecord.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/Lex/Token.h"
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#include "clang/Sema/CodeCompleteConsumer.h"
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#include "clang/Sema/CodeCompleteOptions.h"
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#include "clang/Sema/Sema.h"
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#include "clang/Serialization/ASTBitCodes.h"
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#include "clang/Serialization/ASTReader.h"
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#include "clang/Serialization/ASTWriter.h"
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#include "clang/Serialization/ContinuousRangeMap.h"
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#include "clang/Serialization/InMemoryModuleCache.h"
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#include "clang/Serialization/ModuleFile.h"
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#include "clang/Serialization/PCHContainerOperations.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/IntrusiveRefCntPtr.h"
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#include "llvm/ADT/None.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/StringSet.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/Bitstream/BitstreamWriter.h"
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#include "llvm/Support/Allocator.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/CrashRecoveryContext.h"
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#include "llvm/Support/DJB.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FileUtilities.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Timer.h"
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#include "llvm/Support/VirtualFileSystem.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <atomic>
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#include <cassert>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <tuple>
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#include <utility>
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#include <vector>
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using namespace clang;
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using llvm::TimeRecord;
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namespace {
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class SimpleTimer {
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bool WantTiming;
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TimeRecord Start;
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std::string Output;
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public:
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explicit SimpleTimer(bool WantTiming) : WantTiming(WantTiming) {
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if (WantTiming)
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Start = TimeRecord::getCurrentTime();
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}
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~SimpleTimer() {
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if (WantTiming) {
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TimeRecord Elapsed = TimeRecord::getCurrentTime();
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Elapsed -= Start;
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llvm::errs() << Output << ':';
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Elapsed.print(Elapsed, llvm::errs());
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llvm::errs() << '\n';
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}
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}
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void setOutput(const Twine &Output) {
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if (WantTiming)
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this->Output = Output.str();
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}
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};
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} // namespace
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template <class T>
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static std::unique_ptr<T> valueOrNull(llvm::ErrorOr<std::unique_ptr<T>> Val) {
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if (!Val)
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return nullptr;
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return std::move(*Val);
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}
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template <class T>
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static bool moveOnNoError(llvm::ErrorOr<T> Val, T &Output) {
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if (!Val)
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return false;
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Output = std::move(*Val);
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return true;
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}
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/// Get a source buffer for \p MainFilePath, handling all file-to-file
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/// and file-to-buffer remappings inside \p Invocation.
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static std::unique_ptr<llvm::MemoryBuffer>
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getBufferForFileHandlingRemapping(const CompilerInvocation &Invocation,
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llvm::vfs::FileSystem *VFS,
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StringRef FilePath, bool isVolatile) {
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const auto &PreprocessorOpts = Invocation.getPreprocessorOpts();
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// Try to determine if the main file has been remapped, either from the
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// command line (to another file) or directly through the compiler
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// invocation (to a memory buffer).
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llvm::MemoryBuffer *Buffer = nullptr;
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std::unique_ptr<llvm::MemoryBuffer> BufferOwner;
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auto FileStatus = VFS->status(FilePath);
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if (FileStatus) {
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llvm::sys::fs::UniqueID MainFileID = FileStatus->getUniqueID();
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// Check whether there is a file-file remapping of the main file
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for (const auto &RF : PreprocessorOpts.RemappedFiles) {
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std::string MPath(RF.first);
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auto MPathStatus = VFS->status(MPath);
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if (MPathStatus) {
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llvm::sys::fs::UniqueID MID = MPathStatus->getUniqueID();
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if (MainFileID == MID) {
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// We found a remapping. Try to load the resulting, remapped source.
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BufferOwner = valueOrNull(VFS->getBufferForFile(RF.second, -1, true, isVolatile));
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if (!BufferOwner)
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return nullptr;
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}
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}
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}
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// Check whether there is a file-buffer remapping. It supercedes the
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// file-file remapping.
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for (const auto &RB : PreprocessorOpts.RemappedFileBuffers) {
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std::string MPath(RB.first);
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auto MPathStatus = VFS->status(MPath);
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if (MPathStatus) {
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llvm::sys::fs::UniqueID MID = MPathStatus->getUniqueID();
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if (MainFileID == MID) {
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// We found a remapping.
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BufferOwner.reset();
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Buffer = const_cast<llvm::MemoryBuffer *>(RB.second);
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}
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}
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}
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}
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// If the main source file was not remapped, load it now.
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if (!Buffer && !BufferOwner) {
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BufferOwner = valueOrNull(VFS->getBufferForFile(FilePath, -1, true, isVolatile));
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if (!BufferOwner)
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return nullptr;
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}
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if (BufferOwner)
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return BufferOwner;
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if (!Buffer)
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return nullptr;
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return llvm::MemoryBuffer::getMemBufferCopy(Buffer->getBuffer(), FilePath);
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}
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struct ASTUnit::ASTWriterData {
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SmallString<128> Buffer;
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llvm::BitstreamWriter Stream;
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ASTWriter Writer;
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ASTWriterData(InMemoryModuleCache &ModuleCache)
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: Stream(Buffer), Writer(Stream, Buffer, ModuleCache, {}) {}
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};
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void ASTUnit::clearFileLevelDecls() {
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FileDecls.clear();
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}
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/// After failing to build a precompiled preamble (due to
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/// errors in the source that occurs in the preamble), the number of
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/// reparses during which we'll skip even trying to precompile the
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/// preamble.
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const unsigned DefaultPreambleRebuildInterval = 5;
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/// Tracks the number of ASTUnit objects that are currently active.
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///
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/// Used for debugging purposes only.
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static std::atomic<unsigned> ActiveASTUnitObjects;
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ASTUnit::ASTUnit(bool _MainFileIsAST)
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: MainFileIsAST(_MainFileIsAST), WantTiming(getenv("LIBCLANG_TIMING")),
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ShouldCacheCodeCompletionResults(false),
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IncludeBriefCommentsInCodeCompletion(false), UserFilesAreVolatile(false),
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UnsafeToFree(false) {
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if (getenv("LIBCLANG_OBJTRACKING"))
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fprintf(stderr, "+++ %u translation units\n", ++ActiveASTUnitObjects);
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}
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ASTUnit::~ASTUnit() {
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// If we loaded from an AST file, balance out the BeginSourceFile call.
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if (MainFileIsAST && getDiagnostics().getClient()) {
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getDiagnostics().getClient()->EndSourceFile();
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}
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clearFileLevelDecls();
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// Free the buffers associated with remapped files. We are required to
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// perform this operation here because we explicitly request that the
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// compiler instance *not* free these buffers for each invocation of the
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// parser.
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if (Invocation && OwnsRemappedFileBuffers) {
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PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
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for (const auto &RB : PPOpts.RemappedFileBuffers)
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delete RB.second;
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}
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ClearCachedCompletionResults();
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if (getenv("LIBCLANG_OBJTRACKING"))
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fprintf(stderr, "--- %u translation units\n", --ActiveASTUnitObjects);
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}
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void ASTUnit::setPreprocessor(std::shared_ptr<Preprocessor> PP) {
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this->PP = std::move(PP);
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}
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void ASTUnit::enableSourceFileDiagnostics() {
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assert(getDiagnostics().getClient() && Ctx &&
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"Bad context for source file");
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getDiagnostics().getClient()->BeginSourceFile(Ctx->getLangOpts(), PP.get());
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}
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/// Determine the set of code-completion contexts in which this
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/// declaration should be shown.
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static uint64_t getDeclShowContexts(const NamedDecl *ND,
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const LangOptions &LangOpts,
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bool &IsNestedNameSpecifier) {
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IsNestedNameSpecifier = false;
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if (isa<UsingShadowDecl>(ND))
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ND = ND->getUnderlyingDecl();
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if (!ND)
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return 0;
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uint64_t Contexts = 0;
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if (isa<TypeDecl>(ND) || isa<ObjCInterfaceDecl>(ND) ||
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isa<ClassTemplateDecl>(ND) || isa<TemplateTemplateParmDecl>(ND) ||
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isa<TypeAliasTemplateDecl>(ND)) {
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// Types can appear in these contexts.
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if (LangOpts.CPlusPlus || !isa<TagDecl>(ND))
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Contexts |= (1LL << CodeCompletionContext::CCC_TopLevel)
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| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
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| (1LL << CodeCompletionContext::CCC_ClassStructUnion)
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| (1LL << CodeCompletionContext::CCC_Statement)
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| (1LL << CodeCompletionContext::CCC_Type)
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| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression);
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// In C++, types can appear in expressions contexts (for functional casts).
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if (LangOpts.CPlusPlus)
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Contexts |= (1LL << CodeCompletionContext::CCC_Expression);
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// In Objective-C, message sends can send interfaces. In Objective-C++,
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// all types are available due to functional casts.
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if (LangOpts.CPlusPlus || isa<ObjCInterfaceDecl>(ND))
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Contexts |= (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver);
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// In Objective-C, you can only be a subclass of another Objective-C class
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if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND)) {
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// Objective-C interfaces can be used in a class property expression.
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if (ID->getDefinition())
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Contexts |= (1LL << CodeCompletionContext::CCC_Expression);
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Contexts |= (1LL << CodeCompletionContext::CCC_ObjCInterfaceName);
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}
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// Deal with tag names.
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if (isa<EnumDecl>(ND)) {
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Contexts |= (1LL << CodeCompletionContext::CCC_EnumTag);
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// Part of the nested-name-specifier in C++0x.
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if (LangOpts.CPlusPlus11)
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IsNestedNameSpecifier = true;
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} else if (const auto *Record = dyn_cast<RecordDecl>(ND)) {
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if (Record->isUnion())
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Contexts |= (1LL << CodeCompletionContext::CCC_UnionTag);
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else
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Contexts |= (1LL << CodeCompletionContext::CCC_ClassOrStructTag);
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if (LangOpts.CPlusPlus)
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IsNestedNameSpecifier = true;
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} else if (isa<ClassTemplateDecl>(ND))
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IsNestedNameSpecifier = true;
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} else if (isa<ValueDecl>(ND) || isa<FunctionTemplateDecl>(ND)) {
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// Values can appear in these contexts.
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Contexts = (1LL << CodeCompletionContext::CCC_Statement)
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| (1LL << CodeCompletionContext::CCC_Expression)
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| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression)
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| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver);
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} else if (isa<ObjCProtocolDecl>(ND)) {
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Contexts = (1LL << CodeCompletionContext::CCC_ObjCProtocolName);
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} else if (isa<ObjCCategoryDecl>(ND)) {
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Contexts = (1LL << CodeCompletionContext::CCC_ObjCCategoryName);
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} else if (isa<NamespaceDecl>(ND) || isa<NamespaceAliasDecl>(ND)) {
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Contexts = (1LL << CodeCompletionContext::CCC_Namespace);
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// Part of the nested-name-specifier.
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IsNestedNameSpecifier = true;
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}
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return Contexts;
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}
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void ASTUnit::CacheCodeCompletionResults() {
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if (!TheSema)
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return;
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SimpleTimer Timer(WantTiming);
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Timer.setOutput("Cache global code completions for " + getMainFileName());
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// Clear out the previous results.
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ClearCachedCompletionResults();
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// Gather the set of global code completions.
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using Result = CodeCompletionResult;
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SmallVector<Result, 8> Results;
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CachedCompletionAllocator = std::make_shared<GlobalCodeCompletionAllocator>();
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CodeCompletionTUInfo CCTUInfo(CachedCompletionAllocator);
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TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator,
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CCTUInfo, Results);
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// Translate global code completions into cached completions.
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llvm::DenseMap<CanQualType, unsigned> CompletionTypes;
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CodeCompletionContext CCContext(CodeCompletionContext::CCC_TopLevel);
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for (auto &R : Results) {
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switch (R.Kind) {
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case Result::RK_Declaration: {
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bool IsNestedNameSpecifier = false;
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CachedCodeCompletionResult CachedResult;
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CachedResult.Completion = R.CreateCodeCompletionString(
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*TheSema, CCContext, *CachedCompletionAllocator, CCTUInfo,
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IncludeBriefCommentsInCodeCompletion);
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CachedResult.ShowInContexts = getDeclShowContexts(
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R.Declaration, Ctx->getLangOpts(), IsNestedNameSpecifier);
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CachedResult.Priority = R.Priority;
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CachedResult.Kind = R.CursorKind;
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CachedResult.Availability = R.Availability;
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// Keep track of the type of this completion in an ASTContext-agnostic
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// way.
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QualType UsageType = getDeclUsageType(*Ctx, R.Declaration);
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if (UsageType.isNull()) {
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CachedResult.TypeClass = STC_Void;
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CachedResult.Type = 0;
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} else {
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CanQualType CanUsageType
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= Ctx->getCanonicalType(UsageType.getUnqualifiedType());
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CachedResult.TypeClass = getSimplifiedTypeClass(CanUsageType);
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// Determine whether we have already seen this type. If so, we save
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// ourselves the work of formatting the type string by using the
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// temporary, CanQualType-based hash table to find the associated value.
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unsigned &TypeValue = CompletionTypes[CanUsageType];
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if (TypeValue == 0) {
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TypeValue = CompletionTypes.size();
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CachedCompletionTypes[QualType(CanUsageType).getAsString()]
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= TypeValue;
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}
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CachedResult.Type = TypeValue;
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}
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CachedCompletionResults.push_back(CachedResult);
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/// Handle nested-name-specifiers in C++.
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if (TheSema->Context.getLangOpts().CPlusPlus && IsNestedNameSpecifier &&
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!R.StartsNestedNameSpecifier) {
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// The contexts in which a nested-name-specifier can appear in C++.
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uint64_t NNSContexts
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= (1LL << CodeCompletionContext::CCC_TopLevel)
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| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
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| (1LL << CodeCompletionContext::CCC_ClassStructUnion)
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| (1LL << CodeCompletionContext::CCC_Statement)
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| (1LL << CodeCompletionContext::CCC_Expression)
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| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver)
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| (1LL << CodeCompletionContext::CCC_EnumTag)
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| (1LL << CodeCompletionContext::CCC_UnionTag)
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| (1LL << CodeCompletionContext::CCC_ClassOrStructTag)
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| (1LL << CodeCompletionContext::CCC_Type)
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| (1LL << CodeCompletionContext::CCC_SymbolOrNewName)
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| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression);
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if (isa<NamespaceDecl>(R.Declaration) ||
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isa<NamespaceAliasDecl>(R.Declaration))
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NNSContexts |= (1LL << CodeCompletionContext::CCC_Namespace);
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if (uint64_t RemainingContexts
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= NNSContexts & ~CachedResult.ShowInContexts) {
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// If there any contexts where this completion can be a
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// nested-name-specifier but isn't already an option, create a
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// nested-name-specifier completion.
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R.StartsNestedNameSpecifier = true;
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CachedResult.Completion = R.CreateCodeCompletionString(
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*TheSema, CCContext, *CachedCompletionAllocator, CCTUInfo,
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IncludeBriefCommentsInCodeCompletion);
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CachedResult.ShowInContexts = RemainingContexts;
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CachedResult.Priority = CCP_NestedNameSpecifier;
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CachedResult.TypeClass = STC_Void;
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CachedResult.Type = 0;
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CachedCompletionResults.push_back(CachedResult);
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}
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}
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break;
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}
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case Result::RK_Keyword:
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case Result::RK_Pattern:
|
|
// Ignore keywords and patterns; we don't care, since they are so
|
|
// easily regenerated.
|
|
break;
|
|
|
|
case Result::RK_Macro: {
|
|
CachedCodeCompletionResult CachedResult;
|
|
CachedResult.Completion = R.CreateCodeCompletionString(
|
|
*TheSema, CCContext, *CachedCompletionAllocator, CCTUInfo,
|
|
IncludeBriefCommentsInCodeCompletion);
|
|
CachedResult.ShowInContexts
|
|
= (1LL << CodeCompletionContext::CCC_TopLevel)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCInterface)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCImplementation)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
|
|
| (1LL << CodeCompletionContext::CCC_ClassStructUnion)
|
|
| (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Expression)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver)
|
|
| (1LL << CodeCompletionContext::CCC_MacroNameUse)
|
|
| (1LL << CodeCompletionContext::CCC_PreprocessorExpression)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression)
|
|
| (1LL << CodeCompletionContext::CCC_OtherWithMacros);
|
|
|
|
CachedResult.Priority = R.Priority;
|
|
CachedResult.Kind = R.CursorKind;
|
|
CachedResult.Availability = R.Availability;
|
|
CachedResult.TypeClass = STC_Void;
|
|
CachedResult.Type = 0;
|
|
CachedCompletionResults.push_back(CachedResult);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Save the current top-level hash value.
|
|
CompletionCacheTopLevelHashValue = CurrentTopLevelHashValue;
|
|
}
|
|
|
|
void ASTUnit::ClearCachedCompletionResults() {
|
|
CachedCompletionResults.clear();
|
|
CachedCompletionTypes.clear();
|
|
CachedCompletionAllocator = nullptr;
|
|
}
|
|
|
|
namespace {
|
|
|
|
/// Gathers information from ASTReader that will be used to initialize
|
|
/// a Preprocessor.
|
|
class ASTInfoCollector : public ASTReaderListener {
|
|
Preprocessor &PP;
|
|
ASTContext *Context;
|
|
HeaderSearchOptions &HSOpts;
|
|
PreprocessorOptions &PPOpts;
|
|
LangOptions &LangOpt;
|
|
std::shared_ptr<TargetOptions> &TargetOpts;
|
|
IntrusiveRefCntPtr<TargetInfo> &Target;
|
|
unsigned &Counter;
|
|
bool InitializedLanguage = false;
|
|
|
|
public:
|
|
ASTInfoCollector(Preprocessor &PP, ASTContext *Context,
|
|
HeaderSearchOptions &HSOpts, PreprocessorOptions &PPOpts,
|
|
LangOptions &LangOpt,
|
|
std::shared_ptr<TargetOptions> &TargetOpts,
|
|
IntrusiveRefCntPtr<TargetInfo> &Target, unsigned &Counter)
|
|
: PP(PP), Context(Context), HSOpts(HSOpts), PPOpts(PPOpts),
|
|
LangOpt(LangOpt), TargetOpts(TargetOpts), Target(Target),
|
|
Counter(Counter) {}
|
|
|
|
bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain,
|
|
bool AllowCompatibleDifferences) override {
|
|
if (InitializedLanguage)
|
|
return false;
|
|
|
|
LangOpt = LangOpts;
|
|
InitializedLanguage = true;
|
|
|
|
updated();
|
|
return false;
|
|
}
|
|
|
|
bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
|
|
StringRef SpecificModuleCachePath,
|
|
bool Complain) override {
|
|
this->HSOpts = HSOpts;
|
|
return false;
|
|
}
|
|
|
|
bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, bool Complain,
|
|
std::string &SuggestedPredefines) override {
|
|
this->PPOpts = PPOpts;
|
|
return false;
|
|
}
|
|
|
|
bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain,
|
|
bool AllowCompatibleDifferences) override {
|
|
// If we've already initialized the target, don't do it again.
|
|
if (Target)
|
|
return false;
|
|
|
|
this->TargetOpts = std::make_shared<TargetOptions>(TargetOpts);
|
|
Target =
|
|
TargetInfo::CreateTargetInfo(PP.getDiagnostics(), this->TargetOpts);
|
|
|
|
updated();
|
|
return false;
|
|
}
|
|
|
|
void ReadCounter(const serialization::ModuleFile &M,
|
|
unsigned Value) override {
|
|
Counter = Value;
|
|
}
|
|
|
|
private:
|
|
void updated() {
|
|
if (!Target || !InitializedLanguage)
|
|
return;
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Target->adjust(LangOpt);
|
|
|
|
// Initialize the preprocessor.
|
|
PP.Initialize(*Target);
|
|
|
|
if (!Context)
|
|
return;
|
|
|
|
// Initialize the ASTContext
|
|
Context->InitBuiltinTypes(*Target);
|
|
|
|
// Adjust printing policy based on language options.
|
|
Context->setPrintingPolicy(PrintingPolicy(LangOpt));
|
|
|
|
// We didn't have access to the comment options when the ASTContext was
|
|
// constructed, so register them now.
|
|
Context->getCommentCommandTraits().registerCommentOptions(
|
|
LangOpt.CommentOpts);
|
|
}
|
|
};
|
|
|
|
/// Diagnostic consumer that saves each diagnostic it is given.
|
|
class FilterAndStoreDiagnosticConsumer : public DiagnosticConsumer {
|
|
SmallVectorImpl<StoredDiagnostic> *StoredDiags;
|
|
SmallVectorImpl<ASTUnit::StandaloneDiagnostic> *StandaloneDiags;
|
|
bool CaptureNonErrorsFromIncludes = true;
|
|
const LangOptions *LangOpts = nullptr;
|
|
SourceManager *SourceMgr = nullptr;
|
|
|
|
public:
|
|
FilterAndStoreDiagnosticConsumer(
|
|
SmallVectorImpl<StoredDiagnostic> *StoredDiags,
|
|
SmallVectorImpl<ASTUnit::StandaloneDiagnostic> *StandaloneDiags,
|
|
bool CaptureNonErrorsFromIncludes)
|
|
: StoredDiags(StoredDiags), StandaloneDiags(StandaloneDiags),
|
|
CaptureNonErrorsFromIncludes(CaptureNonErrorsFromIncludes) {
|
|
assert((StoredDiags || StandaloneDiags) &&
|
|
"No output collections were passed to StoredDiagnosticConsumer.");
|
|
}
|
|
|
|
void BeginSourceFile(const LangOptions &LangOpts,
|
|
const Preprocessor *PP = nullptr) override {
|
|
this->LangOpts = &LangOpts;
|
|
if (PP)
|
|
SourceMgr = &PP->getSourceManager();
|
|
}
|
|
|
|
void HandleDiagnostic(DiagnosticsEngine::Level Level,
|
|
const Diagnostic &Info) override;
|
|
};
|
|
|
|
/// RAII object that optionally captures and filters diagnostics, if
|
|
/// there is no diagnostic client to capture them already.
|
|
class CaptureDroppedDiagnostics {
|
|
DiagnosticsEngine &Diags;
|
|
FilterAndStoreDiagnosticConsumer Client;
|
|
DiagnosticConsumer *PreviousClient = nullptr;
|
|
std::unique_ptr<DiagnosticConsumer> OwningPreviousClient;
|
|
|
|
public:
|
|
CaptureDroppedDiagnostics(
|
|
CaptureDiagsKind CaptureDiagnostics, DiagnosticsEngine &Diags,
|
|
SmallVectorImpl<StoredDiagnostic> *StoredDiags,
|
|
SmallVectorImpl<ASTUnit::StandaloneDiagnostic> *StandaloneDiags)
|
|
: Diags(Diags),
|
|
Client(StoredDiags, StandaloneDiags,
|
|
CaptureDiagnostics !=
|
|
CaptureDiagsKind::AllWithoutNonErrorsFromIncludes) {
|
|
if (CaptureDiagnostics != CaptureDiagsKind::None ||
|
|
Diags.getClient() == nullptr) {
|
|
OwningPreviousClient = Diags.takeClient();
|
|
PreviousClient = Diags.getClient();
|
|
Diags.setClient(&Client, false);
|
|
}
|
|
}
|
|
|
|
~CaptureDroppedDiagnostics() {
|
|
if (Diags.getClient() == &Client)
|
|
Diags.setClient(PreviousClient, !!OwningPreviousClient.release());
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
static ASTUnit::StandaloneDiagnostic
|
|
makeStandaloneDiagnostic(const LangOptions &LangOpts,
|
|
const StoredDiagnostic &InDiag);
|
|
|
|
static bool isInMainFile(const clang::Diagnostic &D) {
|
|
if (!D.hasSourceManager() || !D.getLocation().isValid())
|
|
return false;
|
|
|
|
auto &M = D.getSourceManager();
|
|
return M.isWrittenInMainFile(M.getExpansionLoc(D.getLocation()));
|
|
}
|
|
|
|
void FilterAndStoreDiagnosticConsumer::HandleDiagnostic(
|
|
DiagnosticsEngine::Level Level, const Diagnostic &Info) {
|
|
// Default implementation (Warnings/errors count).
|
|
DiagnosticConsumer::HandleDiagnostic(Level, Info);
|
|
|
|
// Only record the diagnostic if it's part of the source manager we know
|
|
// about. This effectively drops diagnostics from modules we're building.
|
|
// FIXME: In the long run, ee don't want to drop source managers from modules.
|
|
if (!Info.hasSourceManager() || &Info.getSourceManager() == SourceMgr) {
|
|
if (!CaptureNonErrorsFromIncludes && Level <= DiagnosticsEngine::Warning &&
|
|
!isInMainFile(Info)) {
|
|
return;
|
|
}
|
|
|
|
StoredDiagnostic *ResultDiag = nullptr;
|
|
if (StoredDiags) {
|
|
StoredDiags->emplace_back(Level, Info);
|
|
ResultDiag = &StoredDiags->back();
|
|
}
|
|
|
|
if (StandaloneDiags) {
|
|
llvm::Optional<StoredDiagnostic> StoredDiag = None;
|
|
if (!ResultDiag) {
|
|
StoredDiag.emplace(Level, Info);
|
|
ResultDiag = StoredDiag.getPointer();
|
|
}
|
|
StandaloneDiags->push_back(
|
|
makeStandaloneDiagnostic(*LangOpts, *ResultDiag));
|
|
}
|
|
}
|
|
}
|
|
|
|
IntrusiveRefCntPtr<ASTReader> ASTUnit::getASTReader() const {
|
|
return Reader;
|
|
}
|
|
|
|
ASTMutationListener *ASTUnit::getASTMutationListener() {
|
|
if (WriterData)
|
|
return &WriterData->Writer;
|
|
return nullptr;
|
|
}
|
|
|
|
ASTDeserializationListener *ASTUnit::getDeserializationListener() {
|
|
if (WriterData)
|
|
return &WriterData->Writer;
|
|
return nullptr;
|
|
}
|
|
|
|
std::unique_ptr<llvm::MemoryBuffer>
|
|
ASTUnit::getBufferForFile(StringRef Filename, std::string *ErrorStr) {
|
|
assert(FileMgr);
|
|
auto Buffer = FileMgr->getBufferForFile(Filename, UserFilesAreVolatile);
|
|
if (Buffer)
|
|
return std::move(*Buffer);
|
|
if (ErrorStr)
|
|
*ErrorStr = Buffer.getError().message();
|
|
return nullptr;
|
|
}
|
|
|
|
/// Configure the diagnostics object for use with ASTUnit.
|
|
void ASTUnit::ConfigureDiags(IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
ASTUnit &AST,
|
|
CaptureDiagsKind CaptureDiagnostics) {
|
|
assert(Diags.get() && "no DiagnosticsEngine was provided");
|
|
if (CaptureDiagnostics != CaptureDiagsKind::None)
|
|
Diags->setClient(new FilterAndStoreDiagnosticConsumer(
|
|
&AST.StoredDiagnostics, nullptr,
|
|
CaptureDiagnostics != CaptureDiagsKind::AllWithoutNonErrorsFromIncludes));
|
|
}
|
|
|
|
std::unique_ptr<ASTUnit> ASTUnit::LoadFromASTFile(
|
|
const std::string &Filename, const PCHContainerReader &PCHContainerRdr,
|
|
WhatToLoad ToLoad, IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
const FileSystemOptions &FileSystemOpts, bool UseDebugInfo,
|
|
bool OnlyLocalDecls, ArrayRef<RemappedFile> RemappedFiles,
|
|
CaptureDiagsKind CaptureDiagnostics, bool AllowPCHWithCompilerErrors,
|
|
bool UserFilesAreVolatile) {
|
|
std::unique_ptr<ASTUnit> AST(new ASTUnit(true));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(AST.get());
|
|
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
|
|
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine>>
|
|
DiagCleanup(Diags.get());
|
|
|
|
ConfigureDiags(Diags, *AST, CaptureDiagnostics);
|
|
|
|
AST->LangOpts = std::make_shared<LangOptions>();
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
AST->Diagnostics = Diags;
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS =
|
|
llvm::vfs::getRealFileSystem();
|
|
AST->FileMgr = new FileManager(FileSystemOpts, VFS);
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
AST->SourceMgr = new SourceManager(AST->getDiagnostics(),
|
|
AST->getFileManager(),
|
|
UserFilesAreVolatile);
|
|
AST->ModuleCache = new InMemoryModuleCache;
|
|
AST->HSOpts = std::make_shared<HeaderSearchOptions>();
|
|
AST->HSOpts->ModuleFormat = std::string(PCHContainerRdr.getFormat());
|
|
AST->HeaderInfo.reset(new HeaderSearch(AST->HSOpts,
|
|
AST->getSourceManager(),
|
|
AST->getDiagnostics(),
|
|
AST->getLangOpts(),
|
|
/*Target=*/nullptr));
|
|
AST->PPOpts = std::make_shared<PreprocessorOptions>();
|
|
|
|
for (const auto &RemappedFile : RemappedFiles)
|
|
AST->PPOpts->addRemappedFile(RemappedFile.first, RemappedFile.second);
|
|
|
|
// Gather Info for preprocessor construction later on.
|
|
|
|
HeaderSearch &HeaderInfo = *AST->HeaderInfo;
|
|
unsigned Counter;
|
|
|
|
AST->PP = std::make_shared<Preprocessor>(
|
|
AST->PPOpts, AST->getDiagnostics(), *AST->LangOpts,
|
|
AST->getSourceManager(), HeaderInfo, AST->ModuleLoader,
|
|
/*IILookup=*/nullptr,
|
|
/*OwnsHeaderSearch=*/false);
|
|
Preprocessor &PP = *AST->PP;
|
|
|
|
if (ToLoad >= LoadASTOnly)
|
|
AST->Ctx = new ASTContext(*AST->LangOpts, AST->getSourceManager(),
|
|
PP.getIdentifierTable(), PP.getSelectorTable(),
|
|
PP.getBuiltinInfo());
|
|
|
|
bool disableValid = false;
|
|
if (::getenv("LIBCLANG_DISABLE_PCH_VALIDATION"))
|
|
disableValid = true;
|
|
AST->Reader = new ASTReader(
|
|
PP, *AST->ModuleCache, AST->Ctx.get(), PCHContainerRdr, {},
|
|
/*isysroot=*/"",
|
|
/*DisableValidation=*/disableValid, AllowPCHWithCompilerErrors);
|
|
|
|
AST->Reader->setListener(std::make_unique<ASTInfoCollector>(
|
|
*AST->PP, AST->Ctx.get(), *AST->HSOpts, *AST->PPOpts, *AST->LangOpts,
|
|
AST->TargetOpts, AST->Target, Counter));
|
|
|
|
// Attach the AST reader to the AST context as an external AST
|
|
// source, so that declarations will be deserialized from the
|
|
// AST file as needed.
|
|
// We need the external source to be set up before we read the AST, because
|
|
// eagerly-deserialized declarations may use it.
|
|
if (AST->Ctx)
|
|
AST->Ctx->setExternalSource(AST->Reader);
|
|
|
|
switch (AST->Reader->ReadAST(Filename, serialization::MK_MainFile,
|
|
SourceLocation(), ASTReader::ARR_None)) {
|
|
case ASTReader::Success:
|
|
break;
|
|
|
|
case ASTReader::Failure:
|
|
case ASTReader::Missing:
|
|
case ASTReader::OutOfDate:
|
|
case ASTReader::VersionMismatch:
|
|
case ASTReader::ConfigurationMismatch:
|
|
case ASTReader::HadErrors:
|
|
AST->getDiagnostics().Report(diag::err_fe_unable_to_load_pch);
|
|
return nullptr;
|
|
}
|
|
|
|
AST->OriginalSourceFile = std::string(AST->Reader->getOriginalSourceFile());
|
|
|
|
PP.setCounterValue(Counter);
|
|
|
|
// Create an AST consumer, even though it isn't used.
|
|
if (ToLoad >= LoadASTOnly)
|
|
AST->Consumer.reset(new ASTConsumer);
|
|
|
|
// Create a semantic analysis object and tell the AST reader about it.
|
|
if (ToLoad >= LoadEverything) {
|
|
AST->TheSema.reset(new Sema(PP, *AST->Ctx, *AST->Consumer));
|
|
AST->TheSema->Initialize();
|
|
AST->Reader->InitializeSema(*AST->TheSema);
|
|
}
|
|
|
|
// Tell the diagnostic client that we have started a source file.
|
|
AST->getDiagnostics().getClient()->BeginSourceFile(PP.getLangOpts(), &PP);
|
|
|
|
return AST;
|
|
}
|
|
|
|
/// Add the given macro to the hash of all top-level entities.
|
|
static void AddDefinedMacroToHash(const Token &MacroNameTok, unsigned &Hash) {
|
|
Hash = llvm::djbHash(MacroNameTok.getIdentifierInfo()->getName(), Hash);
|
|
}
|
|
|
|
namespace {
|
|
|
|
/// Preprocessor callback class that updates a hash value with the names
|
|
/// of all macros that have been defined by the translation unit.
|
|
class MacroDefinitionTrackerPPCallbacks : public PPCallbacks {
|
|
unsigned &Hash;
|
|
|
|
public:
|
|
explicit MacroDefinitionTrackerPPCallbacks(unsigned &Hash) : Hash(Hash) {}
|
|
|
|
void MacroDefined(const Token &MacroNameTok,
|
|
const MacroDirective *MD) override {
|
|
AddDefinedMacroToHash(MacroNameTok, Hash);
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
/// Add the given declaration to the hash of all top-level entities.
|
|
static void AddTopLevelDeclarationToHash(Decl *D, unsigned &Hash) {
|
|
if (!D)
|
|
return;
|
|
|
|
DeclContext *DC = D->getDeclContext();
|
|
if (!DC)
|
|
return;
|
|
|
|
if (!(DC->isTranslationUnit() || DC->getLookupParent()->isTranslationUnit()))
|
|
return;
|
|
|
|
if (const auto *ND = dyn_cast<NamedDecl>(D)) {
|
|
if (const auto *EnumD = dyn_cast<EnumDecl>(D)) {
|
|
// For an unscoped enum include the enumerators in the hash since they
|
|
// enter the top-level namespace.
|
|
if (!EnumD->isScoped()) {
|
|
for (const auto *EI : EnumD->enumerators()) {
|
|
if (EI->getIdentifier())
|
|
Hash = llvm::djbHash(EI->getIdentifier()->getName(), Hash);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ND->getIdentifier())
|
|
Hash = llvm::djbHash(ND->getIdentifier()->getName(), Hash);
|
|
else if (DeclarationName Name = ND->getDeclName()) {
|
|
std::string NameStr = Name.getAsString();
|
|
Hash = llvm::djbHash(NameStr, Hash);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (const auto *ImportD = dyn_cast<ImportDecl>(D)) {
|
|
if (const Module *Mod = ImportD->getImportedModule()) {
|
|
std::string ModName = Mod->getFullModuleName();
|
|
Hash = llvm::djbHash(ModName, Hash);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
|
|
class TopLevelDeclTrackerConsumer : public ASTConsumer {
|
|
ASTUnit &Unit;
|
|
unsigned &Hash;
|
|
|
|
public:
|
|
TopLevelDeclTrackerConsumer(ASTUnit &_Unit, unsigned &Hash)
|
|
: Unit(_Unit), Hash(Hash) {
|
|
Hash = 0;
|
|
}
|
|
|
|
void handleTopLevelDecl(Decl *D) {
|
|
if (!D)
|
|
return;
|
|
|
|
// FIXME: Currently ObjC method declarations are incorrectly being
|
|
// reported as top-level declarations, even though their DeclContext
|
|
// is the containing ObjC @interface/@implementation. This is a
|
|
// fundamental problem in the parser right now.
|
|
if (isa<ObjCMethodDecl>(D))
|
|
return;
|
|
|
|
AddTopLevelDeclarationToHash(D, Hash);
|
|
Unit.addTopLevelDecl(D);
|
|
|
|
handleFileLevelDecl(D);
|
|
}
|
|
|
|
void handleFileLevelDecl(Decl *D) {
|
|
Unit.addFileLevelDecl(D);
|
|
if (auto *NSD = dyn_cast<NamespaceDecl>(D)) {
|
|
for (auto *I : NSD->decls())
|
|
handleFileLevelDecl(I);
|
|
}
|
|
}
|
|
|
|
bool HandleTopLevelDecl(DeclGroupRef D) override {
|
|
for (auto *TopLevelDecl : D)
|
|
handleTopLevelDecl(TopLevelDecl);
|
|
return true;
|
|
}
|
|
|
|
// We're not interested in "interesting" decls.
|
|
void HandleInterestingDecl(DeclGroupRef) override {}
|
|
|
|
void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) override {
|
|
for (auto *TopLevelDecl : D)
|
|
handleTopLevelDecl(TopLevelDecl);
|
|
}
|
|
|
|
ASTMutationListener *GetASTMutationListener() override {
|
|
return Unit.getASTMutationListener();
|
|
}
|
|
|
|
ASTDeserializationListener *GetASTDeserializationListener() override {
|
|
return Unit.getDeserializationListener();
|
|
}
|
|
};
|
|
|
|
class TopLevelDeclTrackerAction : public ASTFrontendAction {
|
|
public:
|
|
ASTUnit &Unit;
|
|
|
|
std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
|
|
StringRef InFile) override {
|
|
CI.getPreprocessor().addPPCallbacks(
|
|
std::make_unique<MacroDefinitionTrackerPPCallbacks>(
|
|
Unit.getCurrentTopLevelHashValue()));
|
|
return std::make_unique<TopLevelDeclTrackerConsumer>(
|
|
Unit, Unit.getCurrentTopLevelHashValue());
|
|
}
|
|
|
|
public:
|
|
TopLevelDeclTrackerAction(ASTUnit &_Unit) : Unit(_Unit) {}
|
|
|
|
bool hasCodeCompletionSupport() const override { return false; }
|
|
|
|
TranslationUnitKind getTranslationUnitKind() override {
|
|
return Unit.getTranslationUnitKind();
|
|
}
|
|
};
|
|
|
|
class ASTUnitPreambleCallbacks : public PreambleCallbacks {
|
|
public:
|
|
unsigned getHash() const { return Hash; }
|
|
|
|
std::vector<Decl *> takeTopLevelDecls() { return std::move(TopLevelDecls); }
|
|
|
|
std::vector<serialization::DeclID> takeTopLevelDeclIDs() {
|
|
return std::move(TopLevelDeclIDs);
|
|
}
|
|
|
|
void AfterPCHEmitted(ASTWriter &Writer) override {
|
|
TopLevelDeclIDs.reserve(TopLevelDecls.size());
|
|
for (const auto *D : TopLevelDecls) {
|
|
// Invalid top-level decls may not have been serialized.
|
|
if (D->isInvalidDecl())
|
|
continue;
|
|
TopLevelDeclIDs.push_back(Writer.getDeclID(D));
|
|
}
|
|
}
|
|
|
|
void HandleTopLevelDecl(DeclGroupRef DG) override {
|
|
for (auto *D : DG) {
|
|
// FIXME: Currently ObjC method declarations are incorrectly being
|
|
// reported as top-level declarations, even though their DeclContext
|
|
// is the containing ObjC @interface/@implementation. This is a
|
|
// fundamental problem in the parser right now.
|
|
if (isa<ObjCMethodDecl>(D))
|
|
continue;
|
|
AddTopLevelDeclarationToHash(D, Hash);
|
|
TopLevelDecls.push_back(D);
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<PPCallbacks> createPPCallbacks() override {
|
|
return std::make_unique<MacroDefinitionTrackerPPCallbacks>(Hash);
|
|
}
|
|
|
|
private:
|
|
unsigned Hash = 0;
|
|
std::vector<Decl *> TopLevelDecls;
|
|
std::vector<serialization::DeclID> TopLevelDeclIDs;
|
|
llvm::SmallVector<ASTUnit::StandaloneDiagnostic, 4> PreambleDiags;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
static bool isNonDriverDiag(const StoredDiagnostic &StoredDiag) {
|
|
return StoredDiag.getLocation().isValid();
|
|
}
|
|
|
|
static void
|
|
checkAndRemoveNonDriverDiags(SmallVectorImpl<StoredDiagnostic> &StoredDiags) {
|
|
// Get rid of stored diagnostics except the ones from the driver which do not
|
|
// have a source location.
|
|
StoredDiags.erase(
|
|
std::remove_if(StoredDiags.begin(), StoredDiags.end(), isNonDriverDiag),
|
|
StoredDiags.end());
|
|
}
|
|
|
|
static void checkAndSanitizeDiags(SmallVectorImpl<StoredDiagnostic> &
|
|
StoredDiagnostics,
|
|
SourceManager &SM) {
|
|
// The stored diagnostic has the old source manager in it; update
|
|
// the locations to refer into the new source manager. Since we've
|
|
// been careful to make sure that the source manager's state
|
|
// before and after are identical, so that we can reuse the source
|
|
// location itself.
|
|
for (auto &SD : StoredDiagnostics) {
|
|
if (SD.getLocation().isValid()) {
|
|
FullSourceLoc Loc(SD.getLocation(), SM);
|
|
SD.setLocation(Loc);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Parse the source file into a translation unit using the given compiler
|
|
/// invocation, replacing the current translation unit.
|
|
///
|
|
/// \returns True if a failure occurred that causes the ASTUnit not to
|
|
/// contain any translation-unit information, false otherwise.
|
|
bool ASTUnit::Parse(std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer,
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) {
|
|
if (!Invocation)
|
|
return true;
|
|
|
|
if (VFS && FileMgr)
|
|
assert(VFS == &FileMgr->getVirtualFileSystem() &&
|
|
"VFS passed to Parse and VFS in FileMgr are different");
|
|
|
|
auto CCInvocation = std::make_shared<CompilerInvocation>(*Invocation);
|
|
if (OverrideMainBuffer) {
|
|
assert(Preamble &&
|
|
"No preamble was built, but OverrideMainBuffer is not null");
|
|
Preamble->AddImplicitPreamble(*CCInvocation, VFS, OverrideMainBuffer.get());
|
|
// VFS may have changed...
|
|
}
|
|
|
|
// Create the compiler instance to use for building the AST.
|
|
std::unique_ptr<CompilerInstance> Clang(
|
|
new CompilerInstance(std::move(PCHContainerOps)));
|
|
|
|
// Ensure that Clang has a FileManager with the right VFS, which may have
|
|
// changed above in AddImplicitPreamble. If VFS is nullptr, rely on
|
|
// createFileManager to create one.
|
|
if (VFS && FileMgr && &FileMgr->getVirtualFileSystem() == VFS)
|
|
Clang->setFileManager(&*FileMgr);
|
|
else
|
|
FileMgr = Clang->createFileManager(std::move(VFS));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
Clang->setInvocation(CCInvocation);
|
|
OriginalSourceFile =
|
|
std::string(Clang->getFrontendOpts().Inputs[0].getFile());
|
|
|
|
// Set up diagnostics, capturing any diagnostics that would
|
|
// otherwise be dropped.
|
|
Clang->setDiagnostics(&getDiagnostics());
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(
|
|
Clang->getDiagnostics(), Clang->getInvocation().TargetOpts));
|
|
if (!Clang->hasTarget())
|
|
return true;
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().adjust(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind().getFormat() ==
|
|
InputKind::Source &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() !=
|
|
Language::LLVM_IR &&
|
|
"IR inputs not support here!");
|
|
|
|
// Configure the various subsystems.
|
|
LangOpts = Clang->getInvocation().LangOpts;
|
|
FileSystemOpts = Clang->getFileSystemOpts();
|
|
|
|
ResetForParse();
|
|
|
|
SourceMgr = new SourceManager(getDiagnostics(), *FileMgr,
|
|
UserFilesAreVolatile);
|
|
if (!OverrideMainBuffer) {
|
|
checkAndRemoveNonDriverDiags(StoredDiagnostics);
|
|
TopLevelDeclsInPreamble.clear();
|
|
}
|
|
|
|
// Create a file manager object to provide access to and cache the filesystem.
|
|
Clang->setFileManager(&getFileManager());
|
|
|
|
// Create the source manager.
|
|
Clang->setSourceManager(&getSourceManager());
|
|
|
|
// If the main file has been overridden due to the use of a preamble,
|
|
// make that override happen and introduce the preamble.
|
|
if (OverrideMainBuffer) {
|
|
// The stored diagnostic has the old source manager in it; update
|
|
// the locations to refer into the new source manager. Since we've
|
|
// been careful to make sure that the source manager's state
|
|
// before and after are identical, so that we can reuse the source
|
|
// location itself.
|
|
checkAndSanitizeDiags(StoredDiagnostics, getSourceManager());
|
|
|
|
// Keep track of the override buffer;
|
|
SavedMainFileBuffer = std::move(OverrideMainBuffer);
|
|
}
|
|
|
|
std::unique_ptr<TopLevelDeclTrackerAction> Act(
|
|
new TopLevelDeclTrackerAction(*this));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction>
|
|
ActCleanup(Act.get());
|
|
|
|
if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0]))
|
|
goto error;
|
|
|
|
if (SavedMainFileBuffer)
|
|
TranslateStoredDiagnostics(getFileManager(), getSourceManager(),
|
|
PreambleDiagnostics, StoredDiagnostics);
|
|
else
|
|
PreambleSrcLocCache.clear();
|
|
|
|
if (llvm::Error Err = Act->Execute()) {
|
|
consumeError(std::move(Err)); // FIXME this drops errors on the floor.
|
|
goto error;
|
|
}
|
|
|
|
transferASTDataFromCompilerInstance(*Clang);
|
|
|
|
Act->EndSourceFile();
|
|
|
|
FailedParseDiagnostics.clear();
|
|
|
|
return false;
|
|
|
|
error:
|
|
// Remove the overridden buffer we used for the preamble.
|
|
SavedMainFileBuffer = nullptr;
|
|
|
|
// Keep the ownership of the data in the ASTUnit because the client may
|
|
// want to see the diagnostics.
|
|
transferASTDataFromCompilerInstance(*Clang);
|
|
FailedParseDiagnostics.swap(StoredDiagnostics);
|
|
StoredDiagnostics.clear();
|
|
NumStoredDiagnosticsFromDriver = 0;
|
|
return true;
|
|
}
|
|
|
|
static std::pair<unsigned, unsigned>
|
|
makeStandaloneRange(CharSourceRange Range, const SourceManager &SM,
|
|
const LangOptions &LangOpts) {
|
|
CharSourceRange FileRange = Lexer::makeFileCharRange(Range, SM, LangOpts);
|
|
unsigned Offset = SM.getFileOffset(FileRange.getBegin());
|
|
unsigned EndOffset = SM.getFileOffset(FileRange.getEnd());
|
|
return std::make_pair(Offset, EndOffset);
|
|
}
|
|
|
|
static ASTUnit::StandaloneFixIt makeStandaloneFixIt(const SourceManager &SM,
|
|
const LangOptions &LangOpts,
|
|
const FixItHint &InFix) {
|
|
ASTUnit::StandaloneFixIt OutFix;
|
|
OutFix.RemoveRange = makeStandaloneRange(InFix.RemoveRange, SM, LangOpts);
|
|
OutFix.InsertFromRange = makeStandaloneRange(InFix.InsertFromRange, SM,
|
|
LangOpts);
|
|
OutFix.CodeToInsert = InFix.CodeToInsert;
|
|
OutFix.BeforePreviousInsertions = InFix.BeforePreviousInsertions;
|
|
return OutFix;
|
|
}
|
|
|
|
static ASTUnit::StandaloneDiagnostic
|
|
makeStandaloneDiagnostic(const LangOptions &LangOpts,
|
|
const StoredDiagnostic &InDiag) {
|
|
ASTUnit::StandaloneDiagnostic OutDiag;
|
|
OutDiag.ID = InDiag.getID();
|
|
OutDiag.Level = InDiag.getLevel();
|
|
OutDiag.Message = std::string(InDiag.getMessage());
|
|
OutDiag.LocOffset = 0;
|
|
if (InDiag.getLocation().isInvalid())
|
|
return OutDiag;
|
|
const SourceManager &SM = InDiag.getLocation().getManager();
|
|
SourceLocation FileLoc = SM.getFileLoc(InDiag.getLocation());
|
|
OutDiag.Filename = std::string(SM.getFilename(FileLoc));
|
|
if (OutDiag.Filename.empty())
|
|
return OutDiag;
|
|
OutDiag.LocOffset = SM.getFileOffset(FileLoc);
|
|
for (const auto &Range : InDiag.getRanges())
|
|
OutDiag.Ranges.push_back(makeStandaloneRange(Range, SM, LangOpts));
|
|
for (const auto &FixIt : InDiag.getFixIts())
|
|
OutDiag.FixIts.push_back(makeStandaloneFixIt(SM, LangOpts, FixIt));
|
|
|
|
return OutDiag;
|
|
}
|
|
|
|
/// Attempt to build or re-use a precompiled preamble when (re-)parsing
|
|
/// the source file.
|
|
///
|
|
/// This routine will compute the preamble of the main source file. If a
|
|
/// non-trivial preamble is found, it will precompile that preamble into a
|
|
/// precompiled header so that the precompiled preamble can be used to reduce
|
|
/// reparsing time. If a precompiled preamble has already been constructed,
|
|
/// this routine will determine if it is still valid and, if so, avoid
|
|
/// rebuilding the precompiled preamble.
|
|
///
|
|
/// \param AllowRebuild When true (the default), this routine is
|
|
/// allowed to rebuild the precompiled preamble if it is found to be
|
|
/// out-of-date.
|
|
///
|
|
/// \param MaxLines When non-zero, the maximum number of lines that
|
|
/// can occur within the preamble.
|
|
///
|
|
/// \returns If the precompiled preamble can be used, returns a newly-allocated
|
|
/// buffer that should be used in place of the main file when doing so.
|
|
/// Otherwise, returns a NULL pointer.
|
|
std::unique_ptr<llvm::MemoryBuffer>
|
|
ASTUnit::getMainBufferWithPrecompiledPreamble(
|
|
std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
CompilerInvocation &PreambleInvocationIn,
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS, bool AllowRebuild,
|
|
unsigned MaxLines) {
|
|
auto MainFilePath =
|
|
PreambleInvocationIn.getFrontendOpts().Inputs[0].getFile();
|
|
std::unique_ptr<llvm::MemoryBuffer> MainFileBuffer =
|
|
getBufferForFileHandlingRemapping(PreambleInvocationIn, VFS.get(),
|
|
MainFilePath, UserFilesAreVolatile);
|
|
if (!MainFileBuffer)
|
|
return nullptr;
|
|
|
|
PreambleBounds Bounds =
|
|
ComputePreambleBounds(*PreambleInvocationIn.getLangOpts(),
|
|
MainFileBuffer.get(), MaxLines);
|
|
if (!Bounds.Size)
|
|
return nullptr;
|
|
|
|
if (Preamble) {
|
|
if (Preamble->CanReuse(PreambleInvocationIn, MainFileBuffer.get(), Bounds,
|
|
VFS.get())) {
|
|
// Okay! We can re-use the precompiled preamble.
|
|
|
|
// Set the state of the diagnostic object to mimic its state
|
|
// after parsing the preamble.
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(),
|
|
PreambleInvocationIn.getDiagnosticOpts());
|
|
getDiagnostics().setNumWarnings(NumWarningsInPreamble);
|
|
|
|
PreambleRebuildCountdown = 1;
|
|
return MainFileBuffer;
|
|
} else {
|
|
Preamble.reset();
|
|
PreambleDiagnostics.clear();
|
|
TopLevelDeclsInPreamble.clear();
|
|
PreambleSrcLocCache.clear();
|
|
PreambleRebuildCountdown = 1;
|
|
}
|
|
}
|
|
|
|
// If the preamble rebuild counter > 1, it's because we previously
|
|
// failed to build a preamble and we're not yet ready to try
|
|
// again. Decrement the counter and return a failure.
|
|
if (PreambleRebuildCountdown > 1) {
|
|
--PreambleRebuildCountdown;
|
|
return nullptr;
|
|
}
|
|
|
|
assert(!Preamble && "No Preamble should be stored at that point");
|
|
// If we aren't allowed to rebuild the precompiled preamble, just
|
|
// return now.
|
|
if (!AllowRebuild)
|
|
return nullptr;
|
|
|
|
++PreambleCounter;
|
|
|
|
SmallVector<StandaloneDiagnostic, 4> NewPreambleDiagsStandalone;
|
|
SmallVector<StoredDiagnostic, 4> NewPreambleDiags;
|
|
ASTUnitPreambleCallbacks Callbacks;
|
|
{
|
|
llvm::Optional<CaptureDroppedDiagnostics> Capture;
|
|
if (CaptureDiagnostics != CaptureDiagsKind::None)
|
|
Capture.emplace(CaptureDiagnostics, *Diagnostics, &NewPreambleDiags,
|
|
&NewPreambleDiagsStandalone);
|
|
|
|
// We did not previously compute a preamble, or it can't be reused anyway.
|
|
SimpleTimer PreambleTimer(WantTiming);
|
|
PreambleTimer.setOutput("Precompiling preamble");
|
|
|
|
const bool PreviousSkipFunctionBodies =
|
|
PreambleInvocationIn.getFrontendOpts().SkipFunctionBodies;
|
|
if (SkipFunctionBodies == SkipFunctionBodiesScope::Preamble)
|
|
PreambleInvocationIn.getFrontendOpts().SkipFunctionBodies = true;
|
|
|
|
llvm::ErrorOr<PrecompiledPreamble> NewPreamble = PrecompiledPreamble::Build(
|
|
PreambleInvocationIn, MainFileBuffer.get(), Bounds, *Diagnostics, VFS,
|
|
PCHContainerOps, /*StoreInMemory=*/false, Callbacks);
|
|
|
|
PreambleInvocationIn.getFrontendOpts().SkipFunctionBodies =
|
|
PreviousSkipFunctionBodies;
|
|
|
|
if (NewPreamble) {
|
|
Preamble = std::move(*NewPreamble);
|
|
PreambleRebuildCountdown = 1;
|
|
} else {
|
|
switch (static_cast<BuildPreambleError>(NewPreamble.getError().value())) {
|
|
case BuildPreambleError::CouldntCreateTempFile:
|
|
// Try again next time.
|
|
PreambleRebuildCountdown = 1;
|
|
return nullptr;
|
|
case BuildPreambleError::CouldntCreateTargetInfo:
|
|
case BuildPreambleError::BeginSourceFileFailed:
|
|
case BuildPreambleError::CouldntEmitPCH:
|
|
case BuildPreambleError::BadInputs:
|
|
// These erros are more likely to repeat, retry after some period.
|
|
PreambleRebuildCountdown = DefaultPreambleRebuildInterval;
|
|
return nullptr;
|
|
}
|
|
llvm_unreachable("unexpected BuildPreambleError");
|
|
}
|
|
}
|
|
|
|
assert(Preamble && "Preamble wasn't built");
|
|
|
|
TopLevelDecls.clear();
|
|
TopLevelDeclsInPreamble = Callbacks.takeTopLevelDeclIDs();
|
|
PreambleTopLevelHashValue = Callbacks.getHash();
|
|
|
|
NumWarningsInPreamble = getDiagnostics().getNumWarnings();
|
|
|
|
checkAndRemoveNonDriverDiags(NewPreambleDiags);
|
|
StoredDiagnostics = std::move(NewPreambleDiags);
|
|
PreambleDiagnostics = std::move(NewPreambleDiagsStandalone);
|
|
|
|
// If the hash of top-level entities differs from the hash of the top-level
|
|
// entities the last time we rebuilt the preamble, clear out the completion
|
|
// cache.
|
|
if (CurrentTopLevelHashValue != PreambleTopLevelHashValue) {
|
|
CompletionCacheTopLevelHashValue = 0;
|
|
PreambleTopLevelHashValue = CurrentTopLevelHashValue;
|
|
}
|
|
|
|
return MainFileBuffer;
|
|
}
|
|
|
|
void ASTUnit::RealizeTopLevelDeclsFromPreamble() {
|
|
assert(Preamble && "Should only be called when preamble was built");
|
|
|
|
std::vector<Decl *> Resolved;
|
|
Resolved.reserve(TopLevelDeclsInPreamble.size());
|
|
ExternalASTSource &Source = *getASTContext().getExternalSource();
|
|
for (const auto TopLevelDecl : TopLevelDeclsInPreamble) {
|
|
// Resolve the declaration ID to an actual declaration, possibly
|
|
// deserializing the declaration in the process.
|
|
if (Decl *D = Source.GetExternalDecl(TopLevelDecl))
|
|
Resolved.push_back(D);
|
|
}
|
|
TopLevelDeclsInPreamble.clear();
|
|
TopLevelDecls.insert(TopLevelDecls.begin(), Resolved.begin(), Resolved.end());
|
|
}
|
|
|
|
void ASTUnit::transferASTDataFromCompilerInstance(CompilerInstance &CI) {
|
|
// Steal the created target, context, and preprocessor if they have been
|
|
// created.
|
|
assert(CI.hasInvocation() && "missing invocation");
|
|
LangOpts = CI.getInvocation().LangOpts;
|
|
TheSema = CI.takeSema();
|
|
Consumer = CI.takeASTConsumer();
|
|
if (CI.hasASTContext())
|
|
Ctx = &CI.getASTContext();
|
|
if (CI.hasPreprocessor())
|
|
PP = CI.getPreprocessorPtr();
|
|
CI.setSourceManager(nullptr);
|
|
CI.setFileManager(nullptr);
|
|
if (CI.hasTarget())
|
|
Target = &CI.getTarget();
|
|
Reader = CI.getASTReader();
|
|
HadModuleLoaderFatalFailure = CI.hadModuleLoaderFatalFailure();
|
|
}
|
|
|
|
StringRef ASTUnit::getMainFileName() const {
|
|
if (Invocation && !Invocation->getFrontendOpts().Inputs.empty()) {
|
|
const FrontendInputFile &Input = Invocation->getFrontendOpts().Inputs[0];
|
|
if (Input.isFile())
|
|
return Input.getFile();
|
|
else
|
|
return Input.getBuffer()->getBufferIdentifier();
|
|
}
|
|
|
|
if (SourceMgr) {
|
|
if (const FileEntry *
|
|
FE = SourceMgr->getFileEntryForID(SourceMgr->getMainFileID()))
|
|
return FE->getName();
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
StringRef ASTUnit::getASTFileName() const {
|
|
if (!isMainFileAST())
|
|
return {};
|
|
|
|
serialization::ModuleFile &
|
|
Mod = Reader->getModuleManager().getPrimaryModule();
|
|
return Mod.FileName;
|
|
}
|
|
|
|
std::unique_ptr<ASTUnit>
|
|
ASTUnit::create(std::shared_ptr<CompilerInvocation> CI,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
|
|
CaptureDiagsKind CaptureDiagnostics,
|
|
bool UserFilesAreVolatile) {
|
|
std::unique_ptr<ASTUnit> AST(new ASTUnit(false));
|
|
ConfigureDiags(Diags, *AST, CaptureDiagnostics);
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS =
|
|
createVFSFromCompilerInvocation(*CI, *Diags);
|
|
AST->Diagnostics = Diags;
|
|
AST->FileSystemOpts = CI->getFileSystemOpts();
|
|
AST->Invocation = std::move(CI);
|
|
AST->FileMgr = new FileManager(AST->FileSystemOpts, VFS);
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
AST->SourceMgr = new SourceManager(AST->getDiagnostics(), *AST->FileMgr,
|
|
UserFilesAreVolatile);
|
|
AST->ModuleCache = new InMemoryModuleCache;
|
|
|
|
return AST;
|
|
}
|
|
|
|
ASTUnit *ASTUnit::LoadFromCompilerInvocationAction(
|
|
std::shared_ptr<CompilerInvocation> CI,
|
|
std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags, FrontendAction *Action,
|
|
ASTUnit *Unit, bool Persistent, StringRef ResourceFilesPath,
|
|
bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics,
|
|
unsigned PrecompilePreambleAfterNParses, bool CacheCodeCompletionResults,
|
|
bool IncludeBriefCommentsInCodeCompletion, bool UserFilesAreVolatile,
|
|
std::unique_ptr<ASTUnit> *ErrAST) {
|
|
assert(CI && "A CompilerInvocation is required");
|
|
|
|
std::unique_ptr<ASTUnit> OwnAST;
|
|
ASTUnit *AST = Unit;
|
|
if (!AST) {
|
|
// Create the AST unit.
|
|
OwnAST = create(CI, Diags, CaptureDiagnostics, UserFilesAreVolatile);
|
|
AST = OwnAST.get();
|
|
if (!AST)
|
|
return nullptr;
|
|
}
|
|
|
|
if (!ResourceFilesPath.empty()) {
|
|
// Override the resources path.
|
|
CI->getHeaderSearchOpts().ResourceDir = std::string(ResourceFilesPath);
|
|
}
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
if (PrecompilePreambleAfterNParses > 0)
|
|
AST->PreambleRebuildCountdown = PrecompilePreambleAfterNParses;
|
|
AST->TUKind = Action ? Action->getTranslationUnitKind() : TU_Complete;
|
|
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
|
|
AST->IncludeBriefCommentsInCodeCompletion
|
|
= IncludeBriefCommentsInCodeCompletion;
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(OwnAST.get());
|
|
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
|
|
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine>>
|
|
DiagCleanup(Diags.get());
|
|
|
|
// We'll manage file buffers ourselves.
|
|
CI->getPreprocessorOpts().RetainRemappedFileBuffers = true;
|
|
CI->getFrontendOpts().DisableFree = false;
|
|
ProcessWarningOptions(AST->getDiagnostics(), CI->getDiagnosticOpts());
|
|
|
|
// Create the compiler instance to use for building the AST.
|
|
std::unique_ptr<CompilerInstance> Clang(
|
|
new CompilerInstance(std::move(PCHContainerOps)));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
Clang->setInvocation(std::move(CI));
|
|
AST->OriginalSourceFile =
|
|
std::string(Clang->getFrontendOpts().Inputs[0].getFile());
|
|
|
|
// Set up diagnostics, capturing any diagnostics that would
|
|
// otherwise be dropped.
|
|
Clang->setDiagnostics(&AST->getDiagnostics());
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(
|
|
Clang->getDiagnostics(), Clang->getInvocation().TargetOpts));
|
|
if (!Clang->hasTarget())
|
|
return nullptr;
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().adjust(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind().getFormat() ==
|
|
InputKind::Source &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() !=
|
|
Language::LLVM_IR &&
|
|
"IR inputs not support here!");
|
|
|
|
// Configure the various subsystems.
|
|
AST->TheSema.reset();
|
|
AST->Ctx = nullptr;
|
|
AST->PP = nullptr;
|
|
AST->Reader = nullptr;
|
|
|
|
// Create a file manager object to provide access to and cache the filesystem.
|
|
Clang->setFileManager(&AST->getFileManager());
|
|
|
|
// Create the source manager.
|
|
Clang->setSourceManager(&AST->getSourceManager());
|
|
|
|
FrontendAction *Act = Action;
|
|
|
|
std::unique_ptr<TopLevelDeclTrackerAction> TrackerAct;
|
|
if (!Act) {
|
|
TrackerAct.reset(new TopLevelDeclTrackerAction(*AST));
|
|
Act = TrackerAct.get();
|
|
}
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<TopLevelDeclTrackerAction>
|
|
ActCleanup(TrackerAct.get());
|
|
|
|
if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) {
|
|
AST->transferASTDataFromCompilerInstance(*Clang);
|
|
if (OwnAST && ErrAST)
|
|
ErrAST->swap(OwnAST);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
if (Persistent && !TrackerAct) {
|
|
Clang->getPreprocessor().addPPCallbacks(
|
|
std::make_unique<MacroDefinitionTrackerPPCallbacks>(
|
|
AST->getCurrentTopLevelHashValue()));
|
|
std::vector<std::unique_ptr<ASTConsumer>> Consumers;
|
|
if (Clang->hasASTConsumer())
|
|
Consumers.push_back(Clang->takeASTConsumer());
|
|
Consumers.push_back(std::make_unique<TopLevelDeclTrackerConsumer>(
|
|
*AST, AST->getCurrentTopLevelHashValue()));
|
|
Clang->setASTConsumer(
|
|
std::make_unique<MultiplexConsumer>(std::move(Consumers)));
|
|
}
|
|
if (llvm::Error Err = Act->Execute()) {
|
|
consumeError(std::move(Err)); // FIXME this drops errors on the floor.
|
|
AST->transferASTDataFromCompilerInstance(*Clang);
|
|
if (OwnAST && ErrAST)
|
|
ErrAST->swap(OwnAST);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// Steal the created target, context, and preprocessor.
|
|
AST->transferASTDataFromCompilerInstance(*Clang);
|
|
|
|
Act->EndSourceFile();
|
|
|
|
if (OwnAST)
|
|
return OwnAST.release();
|
|
else
|
|
return AST;
|
|
}
|
|
|
|
bool ASTUnit::LoadFromCompilerInvocation(
|
|
std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
unsigned PrecompilePreambleAfterNParses,
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) {
|
|
if (!Invocation)
|
|
return true;
|
|
|
|
assert(VFS && "VFS is null");
|
|
|
|
// We'll manage file buffers ourselves.
|
|
Invocation->getPreprocessorOpts().RetainRemappedFileBuffers = true;
|
|
Invocation->getFrontendOpts().DisableFree = false;
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts());
|
|
|
|
std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer;
|
|
if (PrecompilePreambleAfterNParses > 0) {
|
|
PreambleRebuildCountdown = PrecompilePreambleAfterNParses;
|
|
OverrideMainBuffer =
|
|
getMainBufferWithPrecompiledPreamble(PCHContainerOps, *Invocation, VFS);
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts());
|
|
}
|
|
|
|
SimpleTimer ParsingTimer(WantTiming);
|
|
ParsingTimer.setOutput("Parsing " + getMainFileName());
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<llvm::MemoryBuffer>
|
|
MemBufferCleanup(OverrideMainBuffer.get());
|
|
|
|
return Parse(std::move(PCHContainerOps), std::move(OverrideMainBuffer), VFS);
|
|
}
|
|
|
|
std::unique_ptr<ASTUnit> ASTUnit::LoadFromCompilerInvocation(
|
|
std::shared_ptr<CompilerInvocation> CI,
|
|
std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags, FileManager *FileMgr,
|
|
bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics,
|
|
unsigned PrecompilePreambleAfterNParses, TranslationUnitKind TUKind,
|
|
bool CacheCodeCompletionResults, bool IncludeBriefCommentsInCodeCompletion,
|
|
bool UserFilesAreVolatile) {
|
|
// Create the AST unit.
|
|
std::unique_ptr<ASTUnit> AST(new ASTUnit(false));
|
|
ConfigureDiags(Diags, *AST, CaptureDiagnostics);
|
|
AST->Diagnostics = Diags;
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
AST->TUKind = TUKind;
|
|
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
|
|
AST->IncludeBriefCommentsInCodeCompletion
|
|
= IncludeBriefCommentsInCodeCompletion;
|
|
AST->Invocation = std::move(CI);
|
|
AST->FileSystemOpts = FileMgr->getFileSystemOpts();
|
|
AST->FileMgr = FileMgr;
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(AST.get());
|
|
llvm::CrashRecoveryContextCleanupRegistrar<DiagnosticsEngine,
|
|
llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine>>
|
|
DiagCleanup(Diags.get());
|
|
|
|
if (AST->LoadFromCompilerInvocation(std::move(PCHContainerOps),
|
|
PrecompilePreambleAfterNParses,
|
|
&AST->FileMgr->getVirtualFileSystem()))
|
|
return nullptr;
|
|
return AST;
|
|
}
|
|
|
|
ASTUnit *ASTUnit::LoadFromCommandLine(
|
|
const char **ArgBegin, const char **ArgEnd,
|
|
std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diags, StringRef ResourceFilesPath,
|
|
bool OnlyLocalDecls, CaptureDiagsKind CaptureDiagnostics,
|
|
ArrayRef<RemappedFile> RemappedFiles, bool RemappedFilesKeepOriginalName,
|
|
unsigned PrecompilePreambleAfterNParses, TranslationUnitKind TUKind,
|
|
bool CacheCodeCompletionResults, bool IncludeBriefCommentsInCodeCompletion,
|
|
bool AllowPCHWithCompilerErrors, SkipFunctionBodiesScope SkipFunctionBodies,
|
|
bool SingleFileParse, bool UserFilesAreVolatile, bool ForSerialization,
|
|
bool RetainExcludedConditionalBlocks,
|
|
llvm::Optional<StringRef> ModuleFormat, std::unique_ptr<ASTUnit> *ErrAST,
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) {
|
|
assert(Diags.get() && "no DiagnosticsEngine was provided");
|
|
|
|
SmallVector<StoredDiagnostic, 4> StoredDiagnostics;
|
|
|
|
std::shared_ptr<CompilerInvocation> CI;
|
|
|
|
{
|
|
CaptureDroppedDiagnostics Capture(CaptureDiagnostics, *Diags,
|
|
&StoredDiagnostics, nullptr);
|
|
|
|
CI = createInvocationFromCommandLine(
|
|
llvm::makeArrayRef(ArgBegin, ArgEnd), Diags, VFS);
|
|
if (!CI)
|
|
return nullptr;
|
|
}
|
|
|
|
// Override any files that need remapping
|
|
for (const auto &RemappedFile : RemappedFiles) {
|
|
CI->getPreprocessorOpts().addRemappedFile(RemappedFile.first,
|
|
RemappedFile.second);
|
|
}
|
|
PreprocessorOptions &PPOpts = CI->getPreprocessorOpts();
|
|
PPOpts.RemappedFilesKeepOriginalName = RemappedFilesKeepOriginalName;
|
|
PPOpts.AllowPCHWithCompilerErrors = AllowPCHWithCompilerErrors;
|
|
PPOpts.SingleFileParseMode = SingleFileParse;
|
|
PPOpts.RetainExcludedConditionalBlocks = RetainExcludedConditionalBlocks;
|
|
|
|
// Override the resources path.
|
|
CI->getHeaderSearchOpts().ResourceDir = std::string(ResourceFilesPath);
|
|
|
|
CI->getFrontendOpts().SkipFunctionBodies =
|
|
SkipFunctionBodies == SkipFunctionBodiesScope::PreambleAndMainFile;
|
|
|
|
if (ModuleFormat)
|
|
CI->getHeaderSearchOpts().ModuleFormat =
|
|
std::string(ModuleFormat.getValue());
|
|
|
|
// Create the AST unit.
|
|
std::unique_ptr<ASTUnit> AST;
|
|
AST.reset(new ASTUnit(false));
|
|
AST->NumStoredDiagnosticsFromDriver = StoredDiagnostics.size();
|
|
AST->StoredDiagnostics.swap(StoredDiagnostics);
|
|
ConfigureDiags(Diags, *AST, CaptureDiagnostics);
|
|
AST->Diagnostics = Diags;
|
|
AST->FileSystemOpts = CI->getFileSystemOpts();
|
|
if (!VFS)
|
|
VFS = llvm::vfs::getRealFileSystem();
|
|
VFS = createVFSFromCompilerInvocation(*CI, *Diags, VFS);
|
|
AST->FileMgr = new FileManager(AST->FileSystemOpts, VFS);
|
|
AST->ModuleCache = new InMemoryModuleCache;
|
|
AST->OnlyLocalDecls = OnlyLocalDecls;
|
|
AST->CaptureDiagnostics = CaptureDiagnostics;
|
|
AST->TUKind = TUKind;
|
|
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
|
|
AST->IncludeBriefCommentsInCodeCompletion
|
|
= IncludeBriefCommentsInCodeCompletion;
|
|
AST->UserFilesAreVolatile = UserFilesAreVolatile;
|
|
AST->Invocation = CI;
|
|
AST->SkipFunctionBodies = SkipFunctionBodies;
|
|
if (ForSerialization)
|
|
AST->WriterData.reset(new ASTWriterData(*AST->ModuleCache));
|
|
// Zero out now to ease cleanup during crash recovery.
|
|
CI = nullptr;
|
|
Diags = nullptr;
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<ASTUnit>
|
|
ASTUnitCleanup(AST.get());
|
|
|
|
if (AST->LoadFromCompilerInvocation(std::move(PCHContainerOps),
|
|
PrecompilePreambleAfterNParses,
|
|
VFS)) {
|
|
// Some error occurred, if caller wants to examine diagnostics, pass it the
|
|
// ASTUnit.
|
|
if (ErrAST) {
|
|
AST->StoredDiagnostics.swap(AST->FailedParseDiagnostics);
|
|
ErrAST->swap(AST);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
return AST.release();
|
|
}
|
|
|
|
bool ASTUnit::Reparse(std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
ArrayRef<RemappedFile> RemappedFiles,
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) {
|
|
if (!Invocation)
|
|
return true;
|
|
|
|
if (!VFS) {
|
|
assert(FileMgr && "FileMgr is null on Reparse call");
|
|
VFS = &FileMgr->getVirtualFileSystem();
|
|
}
|
|
|
|
clearFileLevelDecls();
|
|
|
|
SimpleTimer ParsingTimer(WantTiming);
|
|
ParsingTimer.setOutput("Reparsing " + getMainFileName());
|
|
|
|
// Remap files.
|
|
PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
|
|
for (const auto &RB : PPOpts.RemappedFileBuffers)
|
|
delete RB.second;
|
|
|
|
Invocation->getPreprocessorOpts().clearRemappedFiles();
|
|
for (const auto &RemappedFile : RemappedFiles) {
|
|
Invocation->getPreprocessorOpts().addRemappedFile(RemappedFile.first,
|
|
RemappedFile.second);
|
|
}
|
|
|
|
// If we have a preamble file lying around, or if we might try to
|
|
// build a precompiled preamble, do so now.
|
|
std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer;
|
|
if (Preamble || PreambleRebuildCountdown > 0)
|
|
OverrideMainBuffer =
|
|
getMainBufferWithPrecompiledPreamble(PCHContainerOps, *Invocation, VFS);
|
|
|
|
// Clear out the diagnostics state.
|
|
FileMgr.reset();
|
|
getDiagnostics().Reset();
|
|
ProcessWarningOptions(getDiagnostics(), Invocation->getDiagnosticOpts());
|
|
if (OverrideMainBuffer)
|
|
getDiagnostics().setNumWarnings(NumWarningsInPreamble);
|
|
|
|
// Parse the sources
|
|
bool Result =
|
|
Parse(std::move(PCHContainerOps), std::move(OverrideMainBuffer), VFS);
|
|
|
|
// If we're caching global code-completion results, and the top-level
|
|
// declarations have changed, clear out the code-completion cache.
|
|
if (!Result && ShouldCacheCodeCompletionResults &&
|
|
CurrentTopLevelHashValue != CompletionCacheTopLevelHashValue)
|
|
CacheCodeCompletionResults();
|
|
|
|
// We now need to clear out the completion info related to this translation
|
|
// unit; it'll be recreated if necessary.
|
|
CCTUInfo.reset();
|
|
|
|
return Result;
|
|
}
|
|
|
|
void ASTUnit::ResetForParse() {
|
|
SavedMainFileBuffer.reset();
|
|
|
|
SourceMgr.reset();
|
|
TheSema.reset();
|
|
Ctx.reset();
|
|
PP.reset();
|
|
Reader.reset();
|
|
|
|
TopLevelDecls.clear();
|
|
clearFileLevelDecls();
|
|
}
|
|
|
|
//----------------------------------------------------------------------------//
|
|
// Code completion
|
|
//----------------------------------------------------------------------------//
|
|
|
|
namespace {
|
|
|
|
/// Code completion consumer that combines the cached code-completion
|
|
/// results from an ASTUnit with the code-completion results provided to it,
|
|
/// then passes the result on to
|
|
class AugmentedCodeCompleteConsumer : public CodeCompleteConsumer {
|
|
uint64_t NormalContexts;
|
|
ASTUnit &AST;
|
|
CodeCompleteConsumer &Next;
|
|
|
|
public:
|
|
AugmentedCodeCompleteConsumer(ASTUnit &AST, CodeCompleteConsumer &Next,
|
|
const CodeCompleteOptions &CodeCompleteOpts)
|
|
: CodeCompleteConsumer(CodeCompleteOpts), AST(AST), Next(Next) {
|
|
// Compute the set of contexts in which we will look when we don't have
|
|
// any information about the specific context.
|
|
NormalContexts
|
|
= (1LL << CodeCompletionContext::CCC_TopLevel)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCInterface)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCImplementation)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCIvarList)
|
|
| (1LL << CodeCompletionContext::CCC_Statement)
|
|
| (1LL << CodeCompletionContext::CCC_Expression)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCMessageReceiver)
|
|
| (1LL << CodeCompletionContext::CCC_DotMemberAccess)
|
|
| (1LL << CodeCompletionContext::CCC_ArrowMemberAccess)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCPropertyAccess)
|
|
| (1LL << CodeCompletionContext::CCC_ObjCProtocolName)
|
|
| (1LL << CodeCompletionContext::CCC_ParenthesizedExpression)
|
|
| (1LL << CodeCompletionContext::CCC_Recovery);
|
|
|
|
if (AST.getASTContext().getLangOpts().CPlusPlus)
|
|
NormalContexts |= (1LL << CodeCompletionContext::CCC_EnumTag)
|
|
| (1LL << CodeCompletionContext::CCC_UnionTag)
|
|
| (1LL << CodeCompletionContext::CCC_ClassOrStructTag);
|
|
}
|
|
|
|
void ProcessCodeCompleteResults(Sema &S, CodeCompletionContext Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults) override;
|
|
|
|
void ProcessOverloadCandidates(Sema &S, unsigned CurrentArg,
|
|
OverloadCandidate *Candidates,
|
|
unsigned NumCandidates,
|
|
SourceLocation OpenParLoc) override {
|
|
Next.ProcessOverloadCandidates(S, CurrentArg, Candidates, NumCandidates,
|
|
OpenParLoc);
|
|
}
|
|
|
|
CodeCompletionAllocator &getAllocator() override {
|
|
return Next.getAllocator();
|
|
}
|
|
|
|
CodeCompletionTUInfo &getCodeCompletionTUInfo() override {
|
|
return Next.getCodeCompletionTUInfo();
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
/// Helper function that computes which global names are hidden by the
|
|
/// local code-completion results.
|
|
static void CalculateHiddenNames(const CodeCompletionContext &Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults,
|
|
ASTContext &Ctx,
|
|
llvm::StringSet<llvm::BumpPtrAllocator> &HiddenNames){
|
|
bool OnlyTagNames = false;
|
|
switch (Context.getKind()) {
|
|
case CodeCompletionContext::CCC_Recovery:
|
|
case CodeCompletionContext::CCC_TopLevel:
|
|
case CodeCompletionContext::CCC_ObjCInterface:
|
|
case CodeCompletionContext::CCC_ObjCImplementation:
|
|
case CodeCompletionContext::CCC_ObjCIvarList:
|
|
case CodeCompletionContext::CCC_ClassStructUnion:
|
|
case CodeCompletionContext::CCC_Statement:
|
|
case CodeCompletionContext::CCC_Expression:
|
|
case CodeCompletionContext::CCC_ObjCMessageReceiver:
|
|
case CodeCompletionContext::CCC_DotMemberAccess:
|
|
case CodeCompletionContext::CCC_ArrowMemberAccess:
|
|
case CodeCompletionContext::CCC_ObjCPropertyAccess:
|
|
case CodeCompletionContext::CCC_Namespace:
|
|
case CodeCompletionContext::CCC_Type:
|
|
case CodeCompletionContext::CCC_Symbol:
|
|
case CodeCompletionContext::CCC_SymbolOrNewName:
|
|
case CodeCompletionContext::CCC_ParenthesizedExpression:
|
|
case CodeCompletionContext::CCC_ObjCInterfaceName:
|
|
break;
|
|
|
|
case CodeCompletionContext::CCC_EnumTag:
|
|
case CodeCompletionContext::CCC_UnionTag:
|
|
case CodeCompletionContext::CCC_ClassOrStructTag:
|
|
OnlyTagNames = true;
|
|
break;
|
|
|
|
case CodeCompletionContext::CCC_ObjCProtocolName:
|
|
case CodeCompletionContext::CCC_MacroName:
|
|
case CodeCompletionContext::CCC_MacroNameUse:
|
|
case CodeCompletionContext::CCC_PreprocessorExpression:
|
|
case CodeCompletionContext::CCC_PreprocessorDirective:
|
|
case CodeCompletionContext::CCC_NaturalLanguage:
|
|
case CodeCompletionContext::CCC_SelectorName:
|
|
case CodeCompletionContext::CCC_TypeQualifiers:
|
|
case CodeCompletionContext::CCC_Other:
|
|
case CodeCompletionContext::CCC_OtherWithMacros:
|
|
case CodeCompletionContext::CCC_ObjCInstanceMessage:
|
|
case CodeCompletionContext::CCC_ObjCClassMessage:
|
|
case CodeCompletionContext::CCC_ObjCCategoryName:
|
|
case CodeCompletionContext::CCC_IncludedFile:
|
|
case CodeCompletionContext::CCC_NewName:
|
|
// We're looking for nothing, or we're looking for names that cannot
|
|
// be hidden.
|
|
return;
|
|
}
|
|
|
|
using Result = CodeCompletionResult;
|
|
for (unsigned I = 0; I != NumResults; ++I) {
|
|
if (Results[I].Kind != Result::RK_Declaration)
|
|
continue;
|
|
|
|
unsigned IDNS
|
|
= Results[I].Declaration->getUnderlyingDecl()->getIdentifierNamespace();
|
|
|
|
bool Hiding = false;
|
|
if (OnlyTagNames)
|
|
Hiding = (IDNS & Decl::IDNS_Tag);
|
|
else {
|
|
unsigned HiddenIDNS = (Decl::IDNS_Type | Decl::IDNS_Member |
|
|
Decl::IDNS_Namespace | Decl::IDNS_Ordinary |
|
|
Decl::IDNS_NonMemberOperator);
|
|
if (Ctx.getLangOpts().CPlusPlus)
|
|
HiddenIDNS |= Decl::IDNS_Tag;
|
|
Hiding = (IDNS & HiddenIDNS);
|
|
}
|
|
|
|
if (!Hiding)
|
|
continue;
|
|
|
|
DeclarationName Name = Results[I].Declaration->getDeclName();
|
|
if (IdentifierInfo *Identifier = Name.getAsIdentifierInfo())
|
|
HiddenNames.insert(Identifier->getName());
|
|
else
|
|
HiddenNames.insert(Name.getAsString());
|
|
}
|
|
}
|
|
|
|
void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S,
|
|
CodeCompletionContext Context,
|
|
CodeCompletionResult *Results,
|
|
unsigned NumResults) {
|
|
// Merge the results we were given with the results we cached.
|
|
bool AddedResult = false;
|
|
uint64_t InContexts =
|
|
Context.getKind() == CodeCompletionContext::CCC_Recovery
|
|
? NormalContexts : (1LL << Context.getKind());
|
|
// Contains the set of names that are hidden by "local" completion results.
|
|
llvm::StringSet<llvm::BumpPtrAllocator> HiddenNames;
|
|
using Result = CodeCompletionResult;
|
|
SmallVector<Result, 8> AllResults;
|
|
for (ASTUnit::cached_completion_iterator
|
|
C = AST.cached_completion_begin(),
|
|
CEnd = AST.cached_completion_end();
|
|
C != CEnd; ++C) {
|
|
// If the context we are in matches any of the contexts we are
|
|
// interested in, we'll add this result.
|
|
if ((C->ShowInContexts & InContexts) == 0)
|
|
continue;
|
|
|
|
// If we haven't added any results previously, do so now.
|
|
if (!AddedResult) {
|
|
CalculateHiddenNames(Context, Results, NumResults, S.Context,
|
|
HiddenNames);
|
|
AllResults.insert(AllResults.end(), Results, Results + NumResults);
|
|
AddedResult = true;
|
|
}
|
|
|
|
// Determine whether this global completion result is hidden by a local
|
|
// completion result. If so, skip it.
|
|
if (C->Kind != CXCursor_MacroDefinition &&
|
|
HiddenNames.count(C->Completion->getTypedText()))
|
|
continue;
|
|
|
|
// Adjust priority based on similar type classes.
|
|
unsigned Priority = C->Priority;
|
|
CodeCompletionString *Completion = C->Completion;
|
|
if (!Context.getPreferredType().isNull()) {
|
|
if (C->Kind == CXCursor_MacroDefinition) {
|
|
Priority = getMacroUsagePriority(C->Completion->getTypedText(),
|
|
S.getLangOpts(),
|
|
Context.getPreferredType()->isAnyPointerType());
|
|
} else if (C->Type) {
|
|
CanQualType Expected
|
|
= S.Context.getCanonicalType(
|
|
Context.getPreferredType().getUnqualifiedType());
|
|
SimplifiedTypeClass ExpectedSTC = getSimplifiedTypeClass(Expected);
|
|
if (ExpectedSTC == C->TypeClass) {
|
|
// We know this type is similar; check for an exact match.
|
|
llvm::StringMap<unsigned> &CachedCompletionTypes
|
|
= AST.getCachedCompletionTypes();
|
|
llvm::StringMap<unsigned>::iterator Pos
|
|
= CachedCompletionTypes.find(QualType(Expected).getAsString());
|
|
if (Pos != CachedCompletionTypes.end() && Pos->second == C->Type)
|
|
Priority /= CCF_ExactTypeMatch;
|
|
else
|
|
Priority /= CCF_SimilarTypeMatch;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Adjust the completion string, if required.
|
|
if (C->Kind == CXCursor_MacroDefinition &&
|
|
Context.getKind() == CodeCompletionContext::CCC_MacroNameUse) {
|
|
// Create a new code-completion string that just contains the
|
|
// macro name, without its arguments.
|
|
CodeCompletionBuilder Builder(getAllocator(), getCodeCompletionTUInfo(),
|
|
CCP_CodePattern, C->Availability);
|
|
Builder.AddTypedTextChunk(C->Completion->getTypedText());
|
|
Priority = CCP_CodePattern;
|
|
Completion = Builder.TakeString();
|
|
}
|
|
|
|
AllResults.push_back(Result(Completion, Priority, C->Kind,
|
|
C->Availability));
|
|
}
|
|
|
|
// If we did not add any cached completion results, just forward the
|
|
// results we were given to the next consumer.
|
|
if (!AddedResult) {
|
|
Next.ProcessCodeCompleteResults(S, Context, Results, NumResults);
|
|
return;
|
|
}
|
|
|
|
Next.ProcessCodeCompleteResults(S, Context, AllResults.data(),
|
|
AllResults.size());
|
|
}
|
|
|
|
void ASTUnit::CodeComplete(
|
|
StringRef File, unsigned Line, unsigned Column,
|
|
ArrayRef<RemappedFile> RemappedFiles, bool IncludeMacros,
|
|
bool IncludeCodePatterns, bool IncludeBriefComments,
|
|
CodeCompleteConsumer &Consumer,
|
|
std::shared_ptr<PCHContainerOperations> PCHContainerOps,
|
|
DiagnosticsEngine &Diag, LangOptions &LangOpts, SourceManager &SourceMgr,
|
|
FileManager &FileMgr, SmallVectorImpl<StoredDiagnostic> &StoredDiagnostics,
|
|
SmallVectorImpl<const llvm::MemoryBuffer *> &OwnedBuffers) {
|
|
if (!Invocation)
|
|
return;
|
|
|
|
SimpleTimer CompletionTimer(WantTiming);
|
|
CompletionTimer.setOutput("Code completion @ " + File + ":" +
|
|
Twine(Line) + ":" + Twine(Column));
|
|
|
|
auto CCInvocation = std::make_shared<CompilerInvocation>(*Invocation);
|
|
|
|
FrontendOptions &FrontendOpts = CCInvocation->getFrontendOpts();
|
|
CodeCompleteOptions &CodeCompleteOpts = FrontendOpts.CodeCompleteOpts;
|
|
PreprocessorOptions &PreprocessorOpts = CCInvocation->getPreprocessorOpts();
|
|
|
|
CodeCompleteOpts.IncludeMacros = IncludeMacros &&
|
|
CachedCompletionResults.empty();
|
|
CodeCompleteOpts.IncludeCodePatterns = IncludeCodePatterns;
|
|
CodeCompleteOpts.IncludeGlobals = CachedCompletionResults.empty();
|
|
CodeCompleteOpts.IncludeBriefComments = IncludeBriefComments;
|
|
CodeCompleteOpts.LoadExternal = Consumer.loadExternal();
|
|
CodeCompleteOpts.IncludeFixIts = Consumer.includeFixIts();
|
|
|
|
assert(IncludeBriefComments == this->IncludeBriefCommentsInCodeCompletion);
|
|
|
|
FrontendOpts.CodeCompletionAt.FileName = std::string(File);
|
|
FrontendOpts.CodeCompletionAt.Line = Line;
|
|
FrontendOpts.CodeCompletionAt.Column = Column;
|
|
|
|
// Set the language options appropriately.
|
|
LangOpts = *CCInvocation->getLangOpts();
|
|
|
|
// Spell-checking and warnings are wasteful during code-completion.
|
|
LangOpts.SpellChecking = false;
|
|
CCInvocation->getDiagnosticOpts().IgnoreWarnings = true;
|
|
|
|
std::unique_ptr<CompilerInstance> Clang(
|
|
new CompilerInstance(PCHContainerOps));
|
|
|
|
// Recover resources if we crash before exiting this method.
|
|
llvm::CrashRecoveryContextCleanupRegistrar<CompilerInstance>
|
|
CICleanup(Clang.get());
|
|
|
|
auto &Inv = *CCInvocation;
|
|
Clang->setInvocation(std::move(CCInvocation));
|
|
OriginalSourceFile =
|
|
std::string(Clang->getFrontendOpts().Inputs[0].getFile());
|
|
|
|
// Set up diagnostics, capturing any diagnostics produced.
|
|
Clang->setDiagnostics(&Diag);
|
|
CaptureDroppedDiagnostics Capture(CaptureDiagsKind::All,
|
|
Clang->getDiagnostics(),
|
|
&StoredDiagnostics, nullptr);
|
|
ProcessWarningOptions(Diag, Inv.getDiagnosticOpts());
|
|
|
|
// Create the target instance.
|
|
Clang->setTarget(TargetInfo::CreateTargetInfo(
|
|
Clang->getDiagnostics(), Clang->getInvocation().TargetOpts));
|
|
if (!Clang->hasTarget()) {
|
|
Clang->setInvocation(nullptr);
|
|
return;
|
|
}
|
|
|
|
// Inform the target of the language options.
|
|
//
|
|
// FIXME: We shouldn't need to do this, the target should be immutable once
|
|
// created. This complexity should be lifted elsewhere.
|
|
Clang->getTarget().adjust(Clang->getLangOpts());
|
|
|
|
assert(Clang->getFrontendOpts().Inputs.size() == 1 &&
|
|
"Invocation must have exactly one source file!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind().getFormat() ==
|
|
InputKind::Source &&
|
|
"FIXME: AST inputs not yet supported here!");
|
|
assert(Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() !=
|
|
Language::LLVM_IR &&
|
|
"IR inputs not support here!");
|
|
|
|
// Use the source and file managers that we were given.
|
|
Clang->setFileManager(&FileMgr);
|
|
Clang->setSourceManager(&SourceMgr);
|
|
|
|
// Remap files.
|
|
PreprocessorOpts.clearRemappedFiles();
|
|
PreprocessorOpts.RetainRemappedFileBuffers = true;
|
|
for (const auto &RemappedFile : RemappedFiles) {
|
|
PreprocessorOpts.addRemappedFile(RemappedFile.first, RemappedFile.second);
|
|
OwnedBuffers.push_back(RemappedFile.second);
|
|
}
|
|
|
|
// Use the code completion consumer we were given, but adding any cached
|
|
// code-completion results.
|
|
AugmentedCodeCompleteConsumer *AugmentedConsumer
|
|
= new AugmentedCodeCompleteConsumer(*this, Consumer, CodeCompleteOpts);
|
|
Clang->setCodeCompletionConsumer(AugmentedConsumer);
|
|
|
|
// If we have a precompiled preamble, try to use it. We only allow
|
|
// the use of the precompiled preamble if we're if the completion
|
|
// point is within the main file, after the end of the precompiled
|
|
// preamble.
|
|
std::unique_ptr<llvm::MemoryBuffer> OverrideMainBuffer;
|
|
if (Preamble) {
|
|
std::string CompleteFilePath(File);
|
|
|
|
auto &VFS = FileMgr.getVirtualFileSystem();
|
|
auto CompleteFileStatus = VFS.status(CompleteFilePath);
|
|
if (CompleteFileStatus) {
|
|
llvm::sys::fs::UniqueID CompleteFileID = CompleteFileStatus->getUniqueID();
|
|
|
|
std::string MainPath(OriginalSourceFile);
|
|
auto MainStatus = VFS.status(MainPath);
|
|
if (MainStatus) {
|
|
llvm::sys::fs::UniqueID MainID = MainStatus->getUniqueID();
|
|
if (CompleteFileID == MainID && Line > 1)
|
|
OverrideMainBuffer = getMainBufferWithPrecompiledPreamble(
|
|
PCHContainerOps, Inv, &VFS, false, Line - 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the main file has been overridden due to the use of a preamble,
|
|
// make that override happen and introduce the preamble.
|
|
if (OverrideMainBuffer) {
|
|
assert(Preamble &&
|
|
"No preamble was built, but OverrideMainBuffer is not null");
|
|
|
|
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS =
|
|
&FileMgr.getVirtualFileSystem();
|
|
Preamble->AddImplicitPreamble(Clang->getInvocation(), VFS,
|
|
OverrideMainBuffer.get());
|
|
// FIXME: there is no way to update VFS if it was changed by
|
|
// AddImplicitPreamble as FileMgr is accepted as a parameter by this method.
|
|
// We use on-disk preambles instead and rely on FileMgr's VFS to ensure the
|
|
// PCH files are always readable.
|
|
OwnedBuffers.push_back(OverrideMainBuffer.release());
|
|
} else {
|
|
PreprocessorOpts.PrecompiledPreambleBytes.first = 0;
|
|
PreprocessorOpts.PrecompiledPreambleBytes.second = false;
|
|
}
|
|
|
|
// Disable the preprocessing record if modules are not enabled.
|
|
if (!Clang->getLangOpts().Modules)
|
|
PreprocessorOpts.DetailedRecord = false;
|
|
|
|
std::unique_ptr<SyntaxOnlyAction> Act;
|
|
Act.reset(new SyntaxOnlyAction);
|
|
if (Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0])) {
|
|
if (llvm::Error Err = Act->Execute()) {
|
|
consumeError(std::move(Err)); // FIXME this drops errors on the floor.
|
|
}
|
|
Act->EndSourceFile();
|
|
}
|
|
}
|
|
|
|
bool ASTUnit::Save(StringRef File) {
|
|
if (HadModuleLoaderFatalFailure)
|
|
return true;
|
|
|
|
// Write to a temporary file and later rename it to the actual file, to avoid
|
|
// possible race conditions.
|
|
SmallString<128> TempPath;
|
|
TempPath = File;
|
|
TempPath += "-%%%%%%%%";
|
|
// FIXME: Can we somehow regenerate the stat cache here, or do we need to
|
|
// unconditionally create a stat cache when we parse the file?
|
|
|
|
if (llvm::Error Err = llvm::writeFileAtomically(
|
|
TempPath, File, [this](llvm::raw_ostream &Out) {
|
|
return serialize(Out) ? llvm::make_error<llvm::StringError>(
|
|
"ASTUnit serialization failed",
|
|
llvm::inconvertibleErrorCode())
|
|
: llvm::Error::success();
|
|
})) {
|
|
consumeError(std::move(Err));
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool serializeUnit(ASTWriter &Writer,
|
|
SmallVectorImpl<char> &Buffer,
|
|
Sema &S,
|
|
bool hasErrors,
|
|
raw_ostream &OS) {
|
|
Writer.WriteAST(S, std::string(), nullptr, "", hasErrors);
|
|
|
|
// Write the generated bitstream to "Out".
|
|
if (!Buffer.empty())
|
|
OS.write(Buffer.data(), Buffer.size());
|
|
|
|
return false;
|
|
}
|
|
|
|
bool ASTUnit::serialize(raw_ostream &OS) {
|
|
// For serialization we are lenient if the errors were only warn-as-error kind.
|
|
bool hasErrors = getDiagnostics().hasUncompilableErrorOccurred();
|
|
|
|
if (WriterData)
|
|
return serializeUnit(WriterData->Writer, WriterData->Buffer,
|
|
getSema(), hasErrors, OS);
|
|
|
|
SmallString<128> Buffer;
|
|
llvm::BitstreamWriter Stream(Buffer);
|
|
InMemoryModuleCache ModuleCache;
|
|
ASTWriter Writer(Stream, Buffer, ModuleCache, {});
|
|
return serializeUnit(Writer, Buffer, getSema(), hasErrors, OS);
|
|
}
|
|
|
|
using SLocRemap = ContinuousRangeMap<unsigned, int, 2>;
|
|
|
|
void ASTUnit::TranslateStoredDiagnostics(
|
|
FileManager &FileMgr,
|
|
SourceManager &SrcMgr,
|
|
const SmallVectorImpl<StandaloneDiagnostic> &Diags,
|
|
SmallVectorImpl<StoredDiagnostic> &Out) {
|
|
// Map the standalone diagnostic into the new source manager. We also need to
|
|
// remap all the locations to the new view. This includes the diag location,
|
|
// any associated source ranges, and the source ranges of associated fix-its.
|
|
// FIXME: There should be a cleaner way to do this.
|
|
SmallVector<StoredDiagnostic, 4> Result;
|
|
Result.reserve(Diags.size());
|
|
|
|
for (const auto &SD : Diags) {
|
|
// Rebuild the StoredDiagnostic.
|
|
if (SD.Filename.empty())
|
|
continue;
|
|
auto FE = FileMgr.getFile(SD.Filename);
|
|
if (!FE)
|
|
continue;
|
|
SourceLocation FileLoc;
|
|
auto ItFileID = PreambleSrcLocCache.find(SD.Filename);
|
|
if (ItFileID == PreambleSrcLocCache.end()) {
|
|
FileID FID = SrcMgr.translateFile(*FE);
|
|
FileLoc = SrcMgr.getLocForStartOfFile(FID);
|
|
PreambleSrcLocCache[SD.Filename] = FileLoc;
|
|
} else {
|
|
FileLoc = ItFileID->getValue();
|
|
}
|
|
|
|
if (FileLoc.isInvalid())
|
|
continue;
|
|
SourceLocation L = FileLoc.getLocWithOffset(SD.LocOffset);
|
|
FullSourceLoc Loc(L, SrcMgr);
|
|
|
|
SmallVector<CharSourceRange, 4> Ranges;
|
|
Ranges.reserve(SD.Ranges.size());
|
|
for (const auto &Range : SD.Ranges) {
|
|
SourceLocation BL = FileLoc.getLocWithOffset(Range.first);
|
|
SourceLocation EL = FileLoc.getLocWithOffset(Range.second);
|
|
Ranges.push_back(CharSourceRange::getCharRange(BL, EL));
|
|
}
|
|
|
|
SmallVector<FixItHint, 2> FixIts;
|
|
FixIts.reserve(SD.FixIts.size());
|
|
for (const auto &FixIt : SD.FixIts) {
|
|
FixIts.push_back(FixItHint());
|
|
FixItHint &FH = FixIts.back();
|
|
FH.CodeToInsert = FixIt.CodeToInsert;
|
|
SourceLocation BL = FileLoc.getLocWithOffset(FixIt.RemoveRange.first);
|
|
SourceLocation EL = FileLoc.getLocWithOffset(FixIt.RemoveRange.second);
|
|
FH.RemoveRange = CharSourceRange::getCharRange(BL, EL);
|
|
}
|
|
|
|
Result.push_back(StoredDiagnostic(SD.Level, SD.ID,
|
|
SD.Message, Loc, Ranges, FixIts));
|
|
}
|
|
Result.swap(Out);
|
|
}
|
|
|
|
void ASTUnit::addFileLevelDecl(Decl *D) {
|
|
assert(D);
|
|
|
|
// We only care about local declarations.
|
|
if (D->isFromASTFile())
|
|
return;
|
|
|
|
SourceManager &SM = *SourceMgr;
|
|
SourceLocation Loc = D->getLocation();
|
|
if (Loc.isInvalid() || !SM.isLocalSourceLocation(Loc))
|
|
return;
|
|
|
|
// We only keep track of the file-level declarations of each file.
|
|
if (!D->getLexicalDeclContext()->isFileContext())
|
|
return;
|
|
|
|
SourceLocation FileLoc = SM.getFileLoc(Loc);
|
|
assert(SM.isLocalSourceLocation(FileLoc));
|
|
FileID FID;
|
|
unsigned Offset;
|
|
std::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc);
|
|
if (FID.isInvalid())
|
|
return;
|
|
|
|
std::unique_ptr<LocDeclsTy> &Decls = FileDecls[FID];
|
|
if (!Decls)
|
|
Decls = std::make_unique<LocDeclsTy>();
|
|
|
|
std::pair<unsigned, Decl *> LocDecl(Offset, D);
|
|
|
|
if (Decls->empty() || Decls->back().first <= Offset) {
|
|
Decls->push_back(LocDecl);
|
|
return;
|
|
}
|
|
|
|
LocDeclsTy::iterator I =
|
|
llvm::upper_bound(*Decls, LocDecl, llvm::less_first());
|
|
|
|
Decls->insert(I, LocDecl);
|
|
}
|
|
|
|
void ASTUnit::findFileRegionDecls(FileID File, unsigned Offset, unsigned Length,
|
|
SmallVectorImpl<Decl *> &Decls) {
|
|
if (File.isInvalid())
|
|
return;
|
|
|
|
if (SourceMgr->isLoadedFileID(File)) {
|
|
assert(Ctx->getExternalSource() && "No external source!");
|
|
return Ctx->getExternalSource()->FindFileRegionDecls(File, Offset, Length,
|
|
Decls);
|
|
}
|
|
|
|
FileDeclsTy::iterator I = FileDecls.find(File);
|
|
if (I == FileDecls.end())
|
|
return;
|
|
|
|
LocDeclsTy &LocDecls = *I->second;
|
|
if (LocDecls.empty())
|
|
return;
|
|
|
|
LocDeclsTy::iterator BeginIt =
|
|
llvm::partition_point(LocDecls, [=](std::pair<unsigned, Decl *> LD) {
|
|
return LD.first < Offset;
|
|
});
|
|
if (BeginIt != LocDecls.begin())
|
|
--BeginIt;
|
|
|
|
// If we are pointing at a top-level decl inside an objc container, we need
|
|
// to backtrack until we find it otherwise we will fail to report that the
|
|
// region overlaps with an objc container.
|
|
while (BeginIt != LocDecls.begin() &&
|
|
BeginIt->second->isTopLevelDeclInObjCContainer())
|
|
--BeginIt;
|
|
|
|
LocDeclsTy::iterator EndIt = llvm::upper_bound(
|
|
LocDecls, std::make_pair(Offset + Length, (Decl *)nullptr),
|
|
llvm::less_first());
|
|
if (EndIt != LocDecls.end())
|
|
++EndIt;
|
|
|
|
for (LocDeclsTy::iterator DIt = BeginIt; DIt != EndIt; ++DIt)
|
|
Decls.push_back(DIt->second);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getLocation(const FileEntry *File,
|
|
unsigned Line, unsigned Col) const {
|
|
const SourceManager &SM = getSourceManager();
|
|
SourceLocation Loc = SM.translateFileLineCol(File, Line, Col);
|
|
return SM.getMacroArgExpandedLocation(Loc);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getLocation(const FileEntry *File,
|
|
unsigned Offset) const {
|
|
const SourceManager &SM = getSourceManager();
|
|
SourceLocation FileLoc = SM.translateFileLineCol(File, 1, 1);
|
|
return SM.getMacroArgExpandedLocation(FileLoc.getLocWithOffset(Offset));
|
|
}
|
|
|
|
/// If \arg Loc is a loaded location from the preamble, returns
|
|
/// the corresponding local location of the main file, otherwise it returns
|
|
/// \arg Loc.
|
|
SourceLocation ASTUnit::mapLocationFromPreamble(SourceLocation Loc) const {
|
|
FileID PreambleID;
|
|
if (SourceMgr)
|
|
PreambleID = SourceMgr->getPreambleFileID();
|
|
|
|
if (Loc.isInvalid() || !Preamble || PreambleID.isInvalid())
|
|
return Loc;
|
|
|
|
unsigned Offs;
|
|
if (SourceMgr->isInFileID(Loc, PreambleID, &Offs) && Offs < Preamble->getBounds().Size) {
|
|
SourceLocation FileLoc
|
|
= SourceMgr->getLocForStartOfFile(SourceMgr->getMainFileID());
|
|
return FileLoc.getLocWithOffset(Offs);
|
|
}
|
|
|
|
return Loc;
|
|
}
|
|
|
|
/// If \arg Loc is a local location of the main file but inside the
|
|
/// preamble chunk, returns the corresponding loaded location from the
|
|
/// preamble, otherwise it returns \arg Loc.
|
|
SourceLocation ASTUnit::mapLocationToPreamble(SourceLocation Loc) const {
|
|
FileID PreambleID;
|
|
if (SourceMgr)
|
|
PreambleID = SourceMgr->getPreambleFileID();
|
|
|
|
if (Loc.isInvalid() || !Preamble || PreambleID.isInvalid())
|
|
return Loc;
|
|
|
|
unsigned Offs;
|
|
if (SourceMgr->isInFileID(Loc, SourceMgr->getMainFileID(), &Offs) &&
|
|
Offs < Preamble->getBounds().Size) {
|
|
SourceLocation FileLoc = SourceMgr->getLocForStartOfFile(PreambleID);
|
|
return FileLoc.getLocWithOffset(Offs);
|
|
}
|
|
|
|
return Loc;
|
|
}
|
|
|
|
bool ASTUnit::isInPreambleFileID(SourceLocation Loc) const {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getPreambleFileID();
|
|
|
|
if (Loc.isInvalid() || FID.isInvalid())
|
|
return false;
|
|
|
|
return SourceMgr->isInFileID(Loc, FID);
|
|
}
|
|
|
|
bool ASTUnit::isInMainFileID(SourceLocation Loc) const {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getMainFileID();
|
|
|
|
if (Loc.isInvalid() || FID.isInvalid())
|
|
return false;
|
|
|
|
return SourceMgr->isInFileID(Loc, FID);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getEndOfPreambleFileID() const {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getPreambleFileID();
|
|
|
|
if (FID.isInvalid())
|
|
return {};
|
|
|
|
return SourceMgr->getLocForEndOfFile(FID);
|
|
}
|
|
|
|
SourceLocation ASTUnit::getStartOfMainFileID() const {
|
|
FileID FID;
|
|
if (SourceMgr)
|
|
FID = SourceMgr->getMainFileID();
|
|
|
|
if (FID.isInvalid())
|
|
return {};
|
|
|
|
return SourceMgr->getLocForStartOfFile(FID);
|
|
}
|
|
|
|
llvm::iterator_range<PreprocessingRecord::iterator>
|
|
ASTUnit::getLocalPreprocessingEntities() const {
|
|
if (isMainFileAST()) {
|
|
serialization::ModuleFile &
|
|
Mod = Reader->getModuleManager().getPrimaryModule();
|
|
return Reader->getModulePreprocessedEntities(Mod);
|
|
}
|
|
|
|
if (PreprocessingRecord *PPRec = PP->getPreprocessingRecord())
|
|
return llvm::make_range(PPRec->local_begin(), PPRec->local_end());
|
|
|
|
return llvm::make_range(PreprocessingRecord::iterator(),
|
|
PreprocessingRecord::iterator());
|
|
}
|
|
|
|
bool ASTUnit::visitLocalTopLevelDecls(void *context, DeclVisitorFn Fn) {
|
|
if (isMainFileAST()) {
|
|
serialization::ModuleFile &
|
|
Mod = Reader->getModuleManager().getPrimaryModule();
|
|
for (const auto *D : Reader->getModuleFileLevelDecls(Mod)) {
|
|
if (!Fn(context, D))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
for (ASTUnit::top_level_iterator TL = top_level_begin(),
|
|
TLEnd = top_level_end();
|
|
TL != TLEnd; ++TL) {
|
|
if (!Fn(context, *TL))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const FileEntry *ASTUnit::getPCHFile() {
|
|
if (!Reader)
|
|
return nullptr;
|
|
|
|
serialization::ModuleFile *Mod = nullptr;
|
|
Reader->getModuleManager().visit([&Mod](serialization::ModuleFile &M) {
|
|
switch (M.Kind) {
|
|
case serialization::MK_ImplicitModule:
|
|
case serialization::MK_ExplicitModule:
|
|
case serialization::MK_PrebuiltModule:
|
|
return true; // skip dependencies.
|
|
case serialization::MK_PCH:
|
|
Mod = &M;
|
|
return true; // found it.
|
|
case serialization::MK_Preamble:
|
|
return false; // look in dependencies.
|
|
case serialization::MK_MainFile:
|
|
return false; // look in dependencies.
|
|
}
|
|
|
|
return true;
|
|
});
|
|
if (Mod)
|
|
return Mod->File;
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
bool ASTUnit::isModuleFile() const {
|
|
return isMainFileAST() && getLangOpts().isCompilingModule();
|
|
}
|
|
|
|
InputKind ASTUnit::getInputKind() const {
|
|
auto &LangOpts = getLangOpts();
|
|
|
|
Language Lang;
|
|
if (LangOpts.OpenCL)
|
|
Lang = Language::OpenCL;
|
|
else if (LangOpts.CUDA)
|
|
Lang = Language::CUDA;
|
|
else if (LangOpts.RenderScript)
|
|
Lang = Language::RenderScript;
|
|
else if (LangOpts.CPlusPlus)
|
|
Lang = LangOpts.ObjC ? Language::ObjCXX : Language::CXX;
|
|
else
|
|
Lang = LangOpts.ObjC ? Language::ObjC : Language::C;
|
|
|
|
InputKind::Format Fmt = InputKind::Source;
|
|
if (LangOpts.getCompilingModule() == LangOptions::CMK_ModuleMap)
|
|
Fmt = InputKind::ModuleMap;
|
|
|
|
// We don't know if input was preprocessed. Assume not.
|
|
bool PP = false;
|
|
|
|
return InputKind(Lang, Fmt, PP);
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
ASTUnit::ConcurrencyState::ConcurrencyState() {
|
|
Mutex = new std::recursive_mutex;
|
|
}
|
|
|
|
ASTUnit::ConcurrencyState::~ConcurrencyState() {
|
|
delete static_cast<std::recursive_mutex *>(Mutex);
|
|
}
|
|
|
|
void ASTUnit::ConcurrencyState::start() {
|
|
bool acquired = static_cast<std::recursive_mutex *>(Mutex)->try_lock();
|
|
assert(acquired && "Concurrent access to ASTUnit!");
|
|
}
|
|
|
|
void ASTUnit::ConcurrencyState::finish() {
|
|
static_cast<std::recursive_mutex *>(Mutex)->unlock();
|
|
}
|
|
|
|
#else // NDEBUG
|
|
|
|
ASTUnit::ConcurrencyState::ConcurrencyState() { Mutex = nullptr; }
|
|
ASTUnit::ConcurrencyState::~ConcurrencyState() {}
|
|
void ASTUnit::ConcurrencyState::start() {}
|
|
void ASTUnit::ConcurrencyState::finish() {}
|
|
|
|
#endif // NDEBUG
|