Check in LLVM r95781.
diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
new file mode 100644
index 0000000..1c958a7
--- /dev/null
+++ b/lib/Frontend/FrontendActions.cpp
@@ -0,0 +1,311 @@
+//===--- FrontendActions.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/FrontendActions.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Parse/Parser.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Frontend/AnalysisConsumer.h"
+#include "clang/Frontend/ASTConsumers.h"
+#include "clang/Frontend/ASTUnit.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/FixItRewriter.h"
+#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/Frontend/Utils.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// AST Consumer Actions
+//===----------------------------------------------------------------------===//
+
+ASTConsumer *AnalysisAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return CreateAnalysisConsumer(CI.getPreprocessor(),
+ CI.getFrontendOpts().OutputFile,
+ CI.getAnalyzerOpts());
+}
+
+ASTConsumer *ASTPrintAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ if (llvm::raw_ostream *OS = CI.createDefaultOutputFile(false, InFile))
+ return CreateASTPrinter(OS);
+ return 0;
+}
+
+ASTConsumer *ASTPrintXMLAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ if (llvm::raw_ostream *OS = CI.createDefaultOutputFile(false, InFile, "xml"))
+ return CreateASTPrinterXML(OS);
+ return 0;
+}
+
+ASTConsumer *ASTDumpAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return CreateASTDumper();
+}
+
+ASTConsumer *ASTViewAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return CreateASTViewer();
+}
+
+ASTConsumer *DeclContextPrintAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return CreateDeclContextPrinter();
+}
+
+ASTConsumer *DumpRecordAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return CreateRecordLayoutDumper();
+}
+
+ASTConsumer *GeneratePCHAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ const std::string &Sysroot = CI.getHeaderSearchOpts().Sysroot;
+ if (CI.getFrontendOpts().RelocatablePCH &&
+ Sysroot.empty()) {
+ CI.getDiagnostics().Report(diag::err_relocatable_without_without_isysroot);
+ return 0;
+ }
+
+ llvm::raw_ostream *OS = CI.createDefaultOutputFile(true, InFile);
+ if (!OS)
+ return 0;
+
+ if (CI.getFrontendOpts().RelocatablePCH)
+ return CreatePCHGenerator(CI.getPreprocessor(), OS, Sysroot.c_str());
+
+ return CreatePCHGenerator(CI.getPreprocessor(), OS);
+}
+
+ASTConsumer *HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ if (llvm::raw_ostream *OS = CI.createDefaultOutputFile(false, InFile))
+ return CreateHTMLPrinter(OS, CI.getPreprocessor());
+ return 0;
+}
+
+ASTConsumer *InheritanceViewAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return CreateInheritanceViewer(CI.getFrontendOpts().ViewClassInheritance);
+}
+
+FixItAction::FixItAction() {}
+FixItAction::~FixItAction() {}
+
+ASTConsumer *FixItAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return new ASTConsumer();
+}
+
+/// AddFixItLocations - Add any individual user specified "fix-it" locations,
+/// and return true on success.
+static bool AddFixItLocations(CompilerInstance &CI,
+ FixItRewriter &FixItRewrite) {
+ const std::vector<ParsedSourceLocation> &Locs =
+ CI.getFrontendOpts().FixItLocations;
+ for (unsigned i = 0, e = Locs.size(); i != e; ++i) {
+ const FileEntry *File = CI.getFileManager().getFile(Locs[i].FileName);
+ if (!File) {
+ CI.getDiagnostics().Report(diag::err_fe_unable_to_find_fixit_file)
+ << Locs[i].FileName;
+ return false;
+ }
+
+ RequestedSourceLocation Requested;
+ Requested.File = File;
+ Requested.Line = Locs[i].Line;
+ Requested.Column = Locs[i].Column;
+ FixItRewrite.addFixItLocation(Requested);
+ }
+
+ return true;
+}
+
+bool FixItAction::BeginSourceFileAction(CompilerInstance &CI,
+ llvm::StringRef Filename) {
+ Rewriter.reset(new FixItRewriter(CI.getDiagnostics(), CI.getSourceManager(),
+ CI.getLangOpts()));
+ if (!AddFixItLocations(CI, *Rewriter))
+ return false;
+
+ return true;
+}
+
+void FixItAction::EndSourceFileAction() {
+ const FrontendOptions &FEOpts = getCompilerInstance().getFrontendOpts();
+ Rewriter->WriteFixedFile(getCurrentFile(), FEOpts.OutputFile);
+}
+
+ASTConsumer *RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ if (llvm::raw_ostream *OS = CI.createDefaultOutputFile(false, InFile, "cpp"))
+ return CreateObjCRewriter(InFile, OS,
+ CI.getDiagnostics(), CI.getLangOpts(),
+ CI.getDiagnosticOpts().NoRewriteMacros);
+ return 0;
+}
+
+ASTConsumer *SyntaxOnlyAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ return new ASTConsumer();
+}
+
+CodeGenAction::CodeGenAction(unsigned _Act) : Act(_Act) {}
+
+ASTConsumer *CodeGenAction::CreateASTConsumer(CompilerInstance &CI,
+ llvm::StringRef InFile) {
+ BackendAction BA = static_cast<BackendAction>(Act);
+ llvm::OwningPtr<llvm::raw_ostream> OS;
+ switch (BA) {
+ case Backend_EmitAssembly:
+ OS.reset(CI.createDefaultOutputFile(false, InFile, "s"));
+ break;
+ case Backend_EmitLL:
+ OS.reset(CI.createDefaultOutputFile(false, InFile, "ll"));
+ break;
+ case Backend_EmitBC:
+ OS.reset(CI.createDefaultOutputFile(true, InFile, "bc"));
+ break;
+ case Backend_EmitNothing:
+ break;
+ case Backend_EmitObj:
+ OS.reset(CI.createDefaultOutputFile(true, InFile, "o"));
+ break;
+ }
+ if (BA != Backend_EmitNothing && !OS)
+ return 0;
+
+ return CreateBackendConsumer(BA, CI.getDiagnostics(), CI.getLangOpts(),
+ CI.getCodeGenOpts(), CI.getTargetOpts(),
+ CI.getFrontendOpts().ShowTimers, InFile,
+ OS.take(), CI.getLLVMContext());
+}
+
+EmitAssemblyAction::EmitAssemblyAction()
+ : CodeGenAction(Backend_EmitAssembly) {}
+
+EmitBCAction::EmitBCAction() : CodeGenAction(Backend_EmitBC) {}
+
+EmitLLVMAction::EmitLLVMAction() : CodeGenAction(Backend_EmitLL) {}
+
+EmitLLVMOnlyAction::EmitLLVMOnlyAction() : CodeGenAction(Backend_EmitNothing) {}
+
+EmitObjAction::EmitObjAction() : CodeGenAction(Backend_EmitObj) {}
+
+//===----------------------------------------------------------------------===//
+// Preprocessor Actions
+//===----------------------------------------------------------------------===//
+
+void DumpRawTokensAction::ExecuteAction() {
+ Preprocessor &PP = getCompilerInstance().getPreprocessor();
+ SourceManager &SM = PP.getSourceManager();
+
+ // Start lexing the specified input file.
+ const llvm::MemoryBuffer *FromFile = SM.getBuffer(SM.getMainFileID());
+ Lexer RawLex(SM.getMainFileID(), FromFile, SM, PP.getLangOptions());
+ RawLex.SetKeepWhitespaceMode(true);
+
+ Token RawTok;
+ RawLex.LexFromRawLexer(RawTok);
+ while (RawTok.isNot(tok::eof)) {
+ PP.DumpToken(RawTok, true);
+ llvm::errs() << "\n";
+ RawLex.LexFromRawLexer(RawTok);
+ }
+}
+
+void DumpTokensAction::ExecuteAction() {
+ Preprocessor &PP = getCompilerInstance().getPreprocessor();
+ // Start preprocessing the specified input file.
+ Token Tok;
+ PP.EnterMainSourceFile();
+ do {
+ PP.Lex(Tok);
+ PP.DumpToken(Tok, true);
+ llvm::errs() << "\n";
+ } while (Tok.isNot(tok::eof));
+}
+
+void GeneratePTHAction::ExecuteAction() {
+ CompilerInstance &CI = getCompilerInstance();
+ if (CI.getFrontendOpts().OutputFile.empty() ||
+ CI.getFrontendOpts().OutputFile == "-") {
+ // FIXME: Don't fail this way.
+ // FIXME: Verify that we can actually seek in the given file.
+ llvm::llvm_report_error("PTH requires a seekable file for output!");
+ }
+ llvm::raw_fd_ostream *OS =
+ CI.createDefaultOutputFile(true, getCurrentFile());
+ if (!OS) return;
+
+ CacheTokens(CI.getPreprocessor(), OS);
+}
+
+void ParseOnlyAction::ExecuteAction() {
+ Preprocessor &PP = getCompilerInstance().getPreprocessor();
+ llvm::OwningPtr<Action> PA(new MinimalAction(PP));
+
+ Parser P(PP, *PA);
+ PP.EnterMainSourceFile();
+ P.ParseTranslationUnit();
+}
+
+void PreprocessOnlyAction::ExecuteAction() {
+ Preprocessor &PP = getCompilerInstance().getPreprocessor();
+
+ Token Tok;
+ // Start parsing the specified input file.
+ PP.EnterMainSourceFile();
+ do {
+ PP.Lex(Tok);
+ } while (Tok.isNot(tok::eof));
+}
+
+void PrintParseAction::ExecuteAction() {
+ CompilerInstance &CI = getCompilerInstance();
+ Preprocessor &PP = getCompilerInstance().getPreprocessor();
+ llvm::raw_ostream *OS = CI.createDefaultOutputFile(false, getCurrentFile());
+ if (!OS) return;
+
+ llvm::OwningPtr<Action> PA(CreatePrintParserActionsAction(PP, OS));
+
+ Parser P(PP, *PA);
+ PP.EnterMainSourceFile();
+ P.ParseTranslationUnit();
+}
+
+void PrintPreprocessedAction::ExecuteAction() {
+ CompilerInstance &CI = getCompilerInstance();
+ // Output file needs to be set to 'Binary', to avoid converting Unix style
+ // line feeds (<LF>) to Microsoft style line feeds (<CR><LF>).
+ llvm::raw_ostream *OS = CI.createDefaultOutputFile(true, getCurrentFile());
+ if (!OS) return;
+
+ DoPrintPreprocessedInput(CI.getPreprocessor(), OS,
+ CI.getPreprocessorOutputOpts());
+}
+
+void RewriteMacrosAction::ExecuteAction() {
+ CompilerInstance &CI = getCompilerInstance();
+ llvm::raw_ostream *OS = CI.createDefaultOutputFile(true, getCurrentFile());
+ if (!OS) return;
+
+ RewriteMacrosInInput(CI.getPreprocessor(), OS);
+}
+
+void RewriteTestAction::ExecuteAction() {
+ CompilerInstance &CI = getCompilerInstance();
+ llvm::raw_ostream *OS = CI.createDefaultOutputFile(false, getCurrentFile());
+ if (!OS) return;
+
+ DoRewriteTest(CI.getPreprocessor(), OS);
+}