1 files changed, 216 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp b/contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp
new file mode 100644
index 0000000..5bc6506
--- /dev/null
+++ b/contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp
@@ -0,0 +1,216 @@
+//===--- 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/Pragma.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Parse/Parser.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Frontend/ASTConsumers.h"
+#include "clang/Frontend/ASTUnit.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/Frontend/Utils.h"
+#include "clang/Serialization/ASTWriter.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// Custom Actions
+//===----------------------------------------------------------------------===//
+
+ASTConsumer *InitOnlyAction::CreateASTConsumer(CompilerInstance &CI,
+                                               llvm::StringRef InFile) {
+  return new ASTConsumer();
+}
+
+void InitOnlyAction::ExecuteAction() {
+}
+
+//===----------------------------------------------------------------------===//
+// AST Consumer Actions
+//===----------------------------------------------------------------------===//
+
+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 *GeneratePCHAction::CreateASTConsumer(CompilerInstance &CI,
+                                                  llvm::StringRef InFile) {
+  std::string Sysroot;
+  llvm::raw_ostream *OS = 0;
+  bool Chaining;
+  if (ComputeASTConsumerArguments(CI, InFile, Sysroot, OS, Chaining))
+    return 0;
+
+  const char *isysroot = CI.getFrontendOpts().RelocatablePCH ?
+                             Sysroot.c_str() : 0;  
+  return new PCHGenerator(CI.getPreprocessor(), Chaining, isysroot, OS);
+}
+
+bool GeneratePCHAction::ComputeASTConsumerArguments(CompilerInstance &CI,
+                                                    llvm::StringRef InFile,
+                                                    std::string &Sysroot,
+                                                    llvm::raw_ostream *&OS,
+                                                    bool &Chaining) {
+  Sysroot = CI.getHeaderSearchOpts().Sysroot;
+  if (CI.getFrontendOpts().RelocatablePCH && Sysroot.empty()) {
+    CI.getDiagnostics().Report(diag::err_relocatable_without_isysroot);
+    return true;
+  }
+
+  OS = CI.createDefaultOutputFile(true, InFile);
+  if (!OS)
+    return true;
+
+  Chaining = CI.getInvocation().getFrontendOpts().ChainedPCH &&
+             !CI.getPreprocessorOpts().ImplicitPCHInclude.empty();
+  return false;
+}
+
+ASTConsumer *InheritanceViewAction::CreateASTConsumer(CompilerInstance &CI,
+                                                      llvm::StringRef InFile) {
+  return CreateInheritanceViewer(CI.getFrontendOpts().ViewClassInheritance);
+}
+
+ASTConsumer *SyntaxOnlyAction::CreateASTConsumer(CompilerInstance &CI,
+                                                 llvm::StringRef InFile) {
+  return new ASTConsumer();
+}
+
+//===----------------------------------------------------------------------===//
+// 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::report_fatal_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 PreprocessOnlyAction::ExecuteAction() {
+  Preprocessor &PP = getCompilerInstance().getPreprocessor();
+
+  // Ignore unknown pragmas.
+  PP.AddPragmaHandler(new EmptyPragmaHandler());
+
+  Token Tok;
+  // Start parsing the specified input file.
+  PP.EnterMainSourceFile();
+  do {
+    PP.Lex(Tok);
+  } while (Tok.isNot(tok::eof));
+}
+
+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 PrintPreambleAction::ExecuteAction() {
+  switch (getCurrentFileKind()) {
+  case IK_C:
+  case IK_CXX:
+  case IK_ObjC:
+  case IK_ObjCXX:
+  case IK_OpenCL:
+    break;
+      
+  case IK_None:
+  case IK_Asm:
+  case IK_PreprocessedC:
+  case IK_PreprocessedCXX:
+  case IK_PreprocessedObjC:
+  case IK_PreprocessedObjCXX:
+  case IK_AST:
+  case IK_LLVM_IR:
+    // We can't do anything with these.
+    return;
+  }
+  
+  llvm::MemoryBuffer *Buffer = llvm::MemoryBuffer::getFile(getCurrentFile());
+  if (Buffer) {
+    unsigned Preamble = Lexer::ComputePreamble(Buffer).first;
+    llvm::outs().write(Buffer->getBufferStart(), Preamble);
+    delete Buffer;
+  }
+}