Daniel Dunbar | 636404a | 2009-11-13 03:51:44 +0000 | [diff] [blame] | 1 | //===--- CompilerInstance.cpp ---------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "clang/Frontend/CompilerInstance.h" |
| 11 | #include "clang/Basic/Diagnostic.h" |
Daniel Dunbar | 546a676 | 2009-11-13 04:12:06 +0000 | [diff] [blame] | 12 | #include "clang/Basic/FileManager.h" |
| 13 | #include "clang/Basic/SourceManager.h" |
Daniel Dunbar | 636404a | 2009-11-13 03:51:44 +0000 | [diff] [blame] | 14 | #include "clang/Basic/TargetInfo.h" |
Daniel Dunbar | aaa148f | 2009-11-13 05:52:11 +0000 | [diff] [blame] | 15 | #include "clang/Lex/HeaderSearch.h" |
| 16 | #include "clang/Lex/Preprocessor.h" |
| 17 | #include "clang/Lex/PTHManager.h" |
| 18 | #include "clang/Frontend/Utils.h" |
Daniel Dunbar | 636404a | 2009-11-13 03:51:44 +0000 | [diff] [blame] | 19 | #include "llvm/LLVMContext.h" |
| 20 | using namespace clang; |
| 21 | |
| 22 | CompilerInstance::CompilerInstance(llvm::LLVMContext *_LLVMContext, |
| 23 | bool _OwnsLLVMContext) |
| 24 | : LLVMContext(_LLVMContext), |
| 25 | OwnsLLVMContext(_OwnsLLVMContext) { |
| 26 | } |
| 27 | |
| 28 | CompilerInstance::~CompilerInstance() { |
| 29 | if (OwnsLLVMContext) |
| 30 | delete LLVMContext; |
| 31 | } |
Daniel Dunbar | 546a676 | 2009-11-13 04:12:06 +0000 | [diff] [blame] | 32 | |
| 33 | void CompilerInstance::createFileManager() { |
| 34 | FileMgr.reset(new FileManager()); |
| 35 | } |
| 36 | |
| 37 | void CompilerInstance::createSourceManager() { |
| 38 | SourceMgr.reset(new SourceManager()); |
| 39 | } |
Daniel Dunbar | aaa148f | 2009-11-13 05:52:11 +0000 | [diff] [blame] | 40 | |
| 41 | void CompilerInstance::createPreprocessor() { |
| 42 | PP.reset(createPreprocessor(getDiagnostics(), getLangOpts(), |
| 43 | getPreprocessorOpts(), getHeaderSearchOpts(), |
| 44 | getDependencyOutputOpts(), getTarget(), |
| 45 | getSourceManager(), getFileManager())); |
| 46 | } |
| 47 | |
| 48 | Preprocessor * |
| 49 | CompilerInstance::createPreprocessor(Diagnostic &Diags, |
| 50 | const LangOptions &LangInfo, |
| 51 | const PreprocessorOptions &PPOpts, |
| 52 | const HeaderSearchOptions &HSOpts, |
| 53 | const DependencyOutputOptions &DepOpts, |
| 54 | const TargetInfo &Target, |
| 55 | SourceManager &SourceMgr, |
| 56 | FileManager &FileMgr) { |
| 57 | // Create a PTH manager if we are using some form of a token cache. |
| 58 | PTHManager *PTHMgr = 0; |
| 59 | if (!PPOpts.getTokenCache().empty()) |
| 60 | PTHMgr = PTHManager::Create(PPOpts.getTokenCache(), Diags); |
| 61 | |
| 62 | // FIXME: Don't fail like this. |
| 63 | if (Diags.hasErrorOccurred()) |
| 64 | exit(1); |
| 65 | |
| 66 | // Create the Preprocessor. |
| 67 | HeaderSearch *HeaderInfo = new HeaderSearch(FileMgr); |
| 68 | Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target, |
| 69 | SourceMgr, *HeaderInfo, PTHMgr, |
| 70 | /*OwnsHeaderSearch=*/true); |
| 71 | |
| 72 | // Note that this is different then passing PTHMgr to Preprocessor's ctor. |
| 73 | // That argument is used as the IdentifierInfoLookup argument to |
| 74 | // IdentifierTable's ctor. |
| 75 | if (PTHMgr) { |
| 76 | PTHMgr->setPreprocessor(PP); |
| 77 | PP->setPTHManager(PTHMgr); |
| 78 | } |
| 79 | |
| 80 | InitializePreprocessor(*PP, PPOpts, HSOpts); |
| 81 | |
| 82 | // Handle generating dependencies, if requested. |
| 83 | if (!DepOpts.OutputFile.empty()) |
| 84 | AttachDependencyFileGen(*PP, DepOpts); |
| 85 | |
| 86 | return PP; |
| 87 | } |