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88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
//===--- CompilerInstance.cpp ---------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/CompilerInstance.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/SourceManager.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Lex/HeaderSearch.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Lex/PTHManager.h"
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#include "clang/Frontend/Utils.h"
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#include "llvm/LLVMContext.h"
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using namespace clang;
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CompilerInstance::CompilerInstance(llvm::LLVMContext *_LLVMContext,
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bool _OwnsLLVMContext)
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: LLVMContext(_LLVMContext),
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OwnsLLVMContext(_OwnsLLVMContext) {
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}
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CompilerInstance::~CompilerInstance() {
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if (OwnsLLVMContext)
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delete LLVMContext;
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}
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void CompilerInstance::createFileManager() {
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FileMgr.reset(new FileManager());
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}
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void CompilerInstance::createSourceManager() {
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SourceMgr.reset(new SourceManager());
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}
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void CompilerInstance::createPreprocessor() {
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PP.reset(createPreprocessor(getDiagnostics(), getLangOpts(),
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getPreprocessorOpts(), getHeaderSearchOpts(),
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getDependencyOutputOpts(), getTarget(),
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getSourceManager(), getFileManager()));
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}
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Preprocessor *
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CompilerInstance::createPreprocessor(Diagnostic &Diags,
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const LangOptions &LangInfo,
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const PreprocessorOptions &PPOpts,
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const HeaderSearchOptions &HSOpts,
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const DependencyOutputOptions &DepOpts,
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const TargetInfo &Target,
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SourceManager &SourceMgr,
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FileManager &FileMgr) {
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// Create a PTH manager if we are using some form of a token cache.
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PTHManager *PTHMgr = 0;
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if (!PPOpts.getTokenCache().empty())
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PTHMgr = PTHManager::Create(PPOpts.getTokenCache(), Diags);
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// FIXME: Don't fail like this.
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if (Diags.hasErrorOccurred())
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exit(1);
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// Create the Preprocessor.
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HeaderSearch *HeaderInfo = new HeaderSearch(FileMgr);
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Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target,
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SourceMgr, *HeaderInfo, PTHMgr,
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/*OwnsHeaderSearch=*/true);
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// Note that this is different then passing PTHMgr to Preprocessor's ctor.
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// That argument is used as the IdentifierInfoLookup argument to
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// IdentifierTable's ctor.
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if (PTHMgr) {
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PTHMgr->setPreprocessor(PP);
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PP->setPTHManager(PTHMgr);
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}
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InitializePreprocessor(*PP, PPOpts, HSOpts);
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// Handle generating dependencies, if requested.
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if (!DepOpts.OutputFile.empty())
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AttachDependencyFileGen(*PP, DepOpts);
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return PP;
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}
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