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authorrdivacky <rdivacky@FreeBSD.org>2009-11-18 14:59:57 +0000
committerrdivacky <rdivacky@FreeBSD.org>2009-11-18 14:59:57 +0000
commit741c13ecc20fb35b836ad690aeecd402f002d654 (patch)
tree60a1694bec5a44d15456acc880cb2f91619f66aa /lib/Frontend/CompilerInstance.cpp
parentb3a51061b1b9c4add078237850649f7c9efb13ab (diff)
downloadFreeBSD-src-741c13ecc20fb35b836ad690aeecd402f002d654.zip
FreeBSD-src-741c13ecc20fb35b836ad690aeecd402f002d654.tar.gz
Update clang to r89205.
Diffstat (limited to 'lib/Frontend/CompilerInstance.cpp')
-rw-r--r--lib/Frontend/CompilerInstance.cpp403
1 files changed, 403 insertions, 0 deletions
diff --git a/lib/Frontend/CompilerInstance.cpp b/lib/Frontend/CompilerInstance.cpp
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+//===--- CompilerInstance.cpp ---------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Lex/HeaderSearch.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Lex/PTHManager.h"
+#include "clang/Frontend/ChainedDiagnosticClient.h"
+#include "clang/Frontend/PCHReader.h"
+#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/Frontend/TextDiagnosticPrinter.h"
+#include "clang/Frontend/VerifyDiagnosticsClient.h"
+#include "clang/Frontend/Utils.h"
+#include "clang/Sema/CodeCompleteConsumer.h"
+#include "llvm/LLVMContext.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Path.h"
+using namespace clang;
+
+CompilerInstance::CompilerInstance(llvm::LLVMContext *_LLVMContext,
+ bool _OwnsLLVMContext)
+ : LLVMContext(_LLVMContext),
+ OwnsLLVMContext(_OwnsLLVMContext) {
+ }
+
+CompilerInstance::~CompilerInstance() {
+ if (OwnsLLVMContext)
+ delete LLVMContext;
+}
+
+void CompilerInstance::setDiagnostics(Diagnostic *Value) {
+ Diagnostics.reset(Value);
+}
+
+void CompilerInstance::setDiagnosticClient(DiagnosticClient *Value) {
+ DiagClient.reset(Value);
+}
+
+void CompilerInstance::setTarget(TargetInfo *Value) {
+ Target.reset(Value);
+}
+
+void CompilerInstance::setFileManager(FileManager *Value) {
+ FileMgr.reset(Value);
+}
+
+void CompilerInstance::setSourceManager(SourceManager *Value) {
+ SourceMgr.reset(Value);
+}
+
+void CompilerInstance::setPreprocessor(Preprocessor *Value) {
+ PP.reset(Value);
+}
+
+void CompilerInstance::setASTContext(ASTContext *Value) {
+ Context.reset(Value);
+}
+
+void CompilerInstance::setASTConsumer(ASTConsumer *Value) {
+ Consumer.reset(Value);
+}
+
+void CompilerInstance::setCodeCompletionConsumer(CodeCompleteConsumer *Value) {
+ CompletionConsumer.reset(Value);
+}
+
+// Diagnostics
+
+static void SetUpBuildDumpLog(const DiagnosticOptions &DiagOpts,
+ unsigned argc, char **argv,
+ llvm::OwningPtr<DiagnosticClient> &DiagClient) {
+ std::string ErrorInfo;
+ llvm::raw_ostream *OS =
+ new llvm::raw_fd_ostream(DiagOpts.DumpBuildInformation.c_str(), ErrorInfo);
+ if (!ErrorInfo.empty()) {
+ // FIXME: Do not fail like this.
+ llvm::errs() << "error opening -dump-build-information file '"
+ << DiagOpts.DumpBuildInformation << "', option ignored!\n";
+ delete OS;
+ return;
+ }
+
+ (*OS) << "clang-cc command line arguments: ";
+ for (unsigned i = 0; i != argc; ++i)
+ (*OS) << argv[i] << ' ';
+ (*OS) << '\n';
+
+ // Chain in a diagnostic client which will log the diagnostics.
+ DiagnosticClient *Logger =
+ new TextDiagnosticPrinter(*OS, DiagOpts, /*OwnsOutputStream=*/true);
+ DiagClient.reset(new ChainedDiagnosticClient(DiagClient.take(), Logger));
+}
+
+void CompilerInstance::createDiagnostics(int Argc, char **Argv) {
+ Diagnostics.reset(createDiagnostics(getDiagnosticOpts(), Argc, Argv));
+
+ if (Diagnostics)
+ DiagClient.reset(Diagnostics->getClient());
+}
+
+Diagnostic *CompilerInstance::createDiagnostics(const DiagnosticOptions &Opts,
+ int Argc, char **Argv) {
+ llvm::OwningPtr<Diagnostic> Diags(new Diagnostic());
+
+ // Create the diagnostic client for reporting errors or for
+ // implementing -verify.
+ llvm::OwningPtr<DiagnosticClient> DiagClient(
+ new TextDiagnosticPrinter(llvm::errs(), Opts));
+
+ // Chain in -verify checker, if requested.
+ if (Opts.VerifyDiagnostics)
+ DiagClient.reset(new VerifyDiagnosticsClient(*Diags, DiagClient.take()));
+
+ if (!Opts.DumpBuildInformation.empty())
+ SetUpBuildDumpLog(Opts, Argc, Argv, DiagClient);
+
+ // Configure our handling of diagnostics.
+ Diags->setClient(DiagClient.take());
+ if (ProcessWarningOptions(*Diags, Opts))
+ return 0;
+
+ return Diags.take();
+}
+
+// File Manager
+
+void CompilerInstance::createFileManager() {
+ FileMgr.reset(new FileManager());
+}
+
+// Source Manager
+
+void CompilerInstance::createSourceManager() {
+ SourceMgr.reset(new SourceManager());
+}
+
+// Preprocessor
+
+void CompilerInstance::createPreprocessor() {
+ PP.reset(createPreprocessor(getDiagnostics(), getLangOpts(),
+ getPreprocessorOpts(), getHeaderSearchOpts(),
+ getDependencyOutputOpts(), getTarget(),
+ getSourceManager(), getFileManager()));
+}
+
+Preprocessor *
+CompilerInstance::createPreprocessor(Diagnostic &Diags,
+ const LangOptions &LangInfo,
+ const PreprocessorOptions &PPOpts,
+ const HeaderSearchOptions &HSOpts,
+ const DependencyOutputOptions &DepOpts,
+ const TargetInfo &Target,
+ SourceManager &SourceMgr,
+ FileManager &FileMgr) {
+ // Create a PTH manager if we are using some form of a token cache.
+ PTHManager *PTHMgr = 0;
+ if (!PPOpts.TokenCache.empty())
+ PTHMgr = PTHManager::Create(PPOpts.TokenCache, Diags);
+
+ // FIXME: Don't fail like this.
+ if (Diags.hasErrorOccurred())
+ exit(1);
+
+ // Create the Preprocessor.
+ HeaderSearch *HeaderInfo = new HeaderSearch(FileMgr);
+ Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target,
+ SourceMgr, *HeaderInfo, PTHMgr,
+ /*OwnsHeaderSearch=*/true);
+
+ // Note that this is different then passing PTHMgr to Preprocessor's ctor.
+ // That argument is used as the IdentifierInfoLookup argument to
+ // IdentifierTable's ctor.
+ if (PTHMgr) {
+ PTHMgr->setPreprocessor(PP);
+ PP->setPTHManager(PTHMgr);
+ }
+
+ InitializePreprocessor(*PP, PPOpts, HSOpts);
+
+ // Handle generating dependencies, if requested.
+ if (!DepOpts.OutputFile.empty())
+ AttachDependencyFileGen(*PP, DepOpts);
+
+ return PP;
+}
+
+// ASTContext
+
+void CompilerInstance::createASTContext() {
+ Preprocessor &PP = getPreprocessor();
+ Context.reset(new ASTContext(getLangOpts(), PP.getSourceManager(),
+ getTarget(), PP.getIdentifierTable(),
+ PP.getSelectorTable(), PP.getBuiltinInfo(),
+ /*FreeMemory=*/ !getFrontendOpts().DisableFree,
+ /*size_reserve=*/ 0));
+}
+
+// ExternalASTSource
+
+void CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path) {
+ llvm::OwningPtr<ExternalASTSource> Source;
+ Source.reset(createPCHExternalASTSource(Path, getHeaderSearchOpts().Sysroot,
+ getPreprocessor(), getASTContext()));
+ getASTContext().setExternalSource(Source);
+}
+
+ExternalASTSource *
+CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path,
+ const std::string &Sysroot,
+ Preprocessor &PP,
+ ASTContext &Context) {
+ llvm::OwningPtr<PCHReader> Reader;
+ Reader.reset(new PCHReader(PP, &Context,
+ Sysroot.empty() ? 0 : Sysroot.c_str()));
+
+ switch (Reader->ReadPCH(Path)) {
+ case PCHReader::Success:
+ // Set the predefines buffer as suggested by the PCH reader. Typically, the
+ // predefines buffer will be empty.
+ PP.setPredefines(Reader->getSuggestedPredefines());
+ return Reader.take();
+
+ case PCHReader::Failure:
+ // Unrecoverable failure: don't even try to process the input file.
+ break;
+
+ case PCHReader::IgnorePCH:
+ // No suitable PCH file could be found. Return an error.
+ break;
+ }
+
+ return 0;
+}
+
+// Code Completion
+
+void CompilerInstance::createCodeCompletionConsumer() {
+ const ParsedSourceLocation &Loc = getFrontendOpts().CodeCompletionAt;
+ CompletionConsumer.reset(
+ createCodeCompletionConsumer(getPreprocessor(),
+ Loc.FileName, Loc.Line, Loc.Column,
+ getFrontendOpts().DebugCodeCompletionPrinter,
+ getFrontendOpts().ShowMacrosInCodeCompletion,
+ llvm::outs()));
+}
+
+CodeCompleteConsumer *
+CompilerInstance::createCodeCompletionConsumer(Preprocessor &PP,
+ const std::string &Filename,
+ unsigned Line,
+ unsigned Column,
+ bool UseDebugPrinter,
+ bool ShowMacros,
+ llvm::raw_ostream &OS) {
+ // Tell the source manager to chop off the given file at a specific
+ // line and column.
+ const FileEntry *Entry = PP.getFileManager().getFile(Filename);
+ if (!Entry) {
+ PP.getDiagnostics().Report(diag::err_fe_invalid_code_complete_file)
+ << Filename;
+ return 0;
+ }
+
+ // Truncate the named file at the given line/column.
+ PP.getSourceManager().truncateFileAt(Entry, Line, Column);
+
+ // Set up the creation routine for code-completion.
+ if (UseDebugPrinter)
+ return new PrintingCodeCompleteConsumer(ShowMacros, OS);
+ else
+ return new CIndexCodeCompleteConsumer(ShowMacros, OS);
+}
+
+// Output Files
+
+void CompilerInstance::addOutputFile(llvm::StringRef Path,
+ llvm::raw_ostream *OS) {
+ assert(OS && "Attempt to add empty stream to output list!");
+ OutputFiles.push_back(std::make_pair(Path, OS));
+}
+
+void CompilerInstance::ClearOutputFiles(bool EraseFiles) {
+ for (std::list< std::pair<std::string, llvm::raw_ostream*> >::iterator
+ it = OutputFiles.begin(), ie = OutputFiles.end(); it != ie; ++it) {
+ delete it->second;
+ if (EraseFiles && !it->first.empty())
+ llvm::sys::Path(it->first).eraseFromDisk();
+ }
+ OutputFiles.clear();
+}
+
+llvm::raw_fd_ostream *
+CompilerInstance::createDefaultOutputFile(bool Binary,
+ llvm::StringRef InFile,
+ llvm::StringRef Extension) {
+ return createOutputFile(getFrontendOpts().OutputFile, Binary,
+ InFile, Extension);
+}
+
+llvm::raw_fd_ostream *
+CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
+ bool Binary,
+ llvm::StringRef InFile,
+ llvm::StringRef Extension) {
+ std::string Error, OutputPathName;
+ llvm::raw_fd_ostream *OS = createOutputFile(OutputPath, Error, Binary,
+ InFile, Extension,
+ &OutputPathName);
+ if (!OS) {
+ // FIXME: Don't fail this way.
+ llvm::errs() << "ERROR: " << Error << "\n";
+ ::exit(1);
+ }
+
+ // Add the output file -- but don't try to remove "-", since this means we are
+ // using stdin.
+ addOutputFile((OutputPathName != "-") ? OutputPathName : "", OS);
+
+ return OS;
+}
+
+llvm::raw_fd_ostream *
+CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
+ std::string &Error,
+ bool Binary,
+ llvm::StringRef InFile,
+ llvm::StringRef Extension,
+ std::string *ResultPathName) {
+ std::string OutFile;
+ if (!OutputPath.empty()) {
+ OutFile = OutputPath;
+ } else if (InFile == "-") {
+ OutFile = "-";
+ } else if (!Extension.empty()) {
+ llvm::sys::Path Path(InFile);
+ Path.eraseSuffix();
+ Path.appendSuffix(Extension);
+ OutFile = Path.str();
+ } else {
+ OutFile = "-";
+ }
+
+ llvm::raw_fd_ostream *OS =
+ new llvm::raw_fd_ostream(OutFile.c_str(), Error,
+ (Binary ? llvm::raw_fd_ostream::F_Binary : 0));
+ if (!OS)
+ return 0;
+
+ if (ResultPathName)
+ *ResultPathName = OutFile;
+
+ return OS;
+}
+
+// Initialization Utilities
+
+bool CompilerInstance::InitializeSourceManager(llvm::StringRef InputFile) {
+ return InitializeSourceManager(InputFile, getDiagnostics(), getFileManager(),
+ getSourceManager(), getFrontendOpts());
+}
+
+bool CompilerInstance::InitializeSourceManager(llvm::StringRef InputFile,
+ Diagnostic &Diags,
+ FileManager &FileMgr,
+ SourceManager &SourceMgr,
+ const FrontendOptions &Opts) {
+ // Figure out where to get and map in the main file.
+ if (Opts.EmptyInputOnly) {
+ const char *EmptyStr = "";
+ llvm::MemoryBuffer *SB =
+ llvm::MemoryBuffer::getMemBuffer(EmptyStr, EmptyStr, "<empty input>");
+ SourceMgr.createMainFileIDForMemBuffer(SB);
+ } else if (InputFile != "-") {
+ const FileEntry *File = FileMgr.getFile(InputFile);
+ if (File) SourceMgr.createMainFileID(File, SourceLocation());
+ if (SourceMgr.getMainFileID().isInvalid()) {
+ Diags.Report(diag::err_fe_error_reading) << InputFile;
+ return false;
+ }
+ } else {
+ llvm::MemoryBuffer *SB = llvm::MemoryBuffer::getSTDIN();
+ SourceMgr.createMainFileIDForMemBuffer(SB);
+ if (SourceMgr.getMainFileID().isInvalid()) {
+ Diags.Report(diag::err_fe_error_reading_stdin);
+ return false;
+ }
+ }
+
+ return true;
+}
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