path: root/tools/clang-cc/clang-cc.cpp

//===--- clang.cpp - C-Language Front-end ---------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This utility may be invoked in the following manner:
//   clang --help                - Output help info.
//   clang [options]             - Read from stdin.
//   clang [options] file        - Read from "file".
//   clang [options] file1 file2 - Read these files.
//
//===----------------------------------------------------------------------===//

#include "Options.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclGroup.h"
#include "clang/Analysis/PathDiagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/Version.h"
#include "clang/CodeGen/ModuleBuilder.h"
#include "clang/Frontend/ASTConsumers.h"
#include "clang/Frontend/ASTUnit.h"
#include "clang/Frontend/AnalysisConsumer.h"
#include "clang/Frontend/ChainedDiagnosticClient.h"
#include "clang/Frontend/CommandLineSourceLoc.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/DependencyOutputOptions.h"
#include "clang/Frontend/FixItRewriter.h"
#include "clang/Frontend/FrontendDiagnostic.h"
#include "clang/Frontend/PCHReader.h"
#include "clang/Frontend/PathDiagnosticClients.h"
#include "clang/Frontend/PreprocessorOptions.h"
#include "clang/Frontend/PreprocessorOutputOptions.h"
#include "clang/Frontend/TextDiagnosticBuffer.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Frontend/Utils.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/LexDiagnostic.h"
#include "clang/Parse/Parser.h"
#include "clang/Sema/CodeCompleteConsumer.h"
#include "clang/Sema/ParseAST.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "llvm/LLVMContext.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Config/config.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Timer.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Host.h"
#include "llvm/System/Path.h"
#include "llvm/System/Program.h"
#include "llvm/System/Signals.h"
#include "llvm/Target/TargetSelect.h"
#include <cstdlib>
#if HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif

using namespace clang;

//===----------------------------------------------------------------------===//
// Code Completion Options
//===----------------------------------------------------------------------===//

enum CodeCompletionPrinter {
  CCP_Debug,
  CCP_CIndex
};

static llvm::cl::opt<ParsedSourceLocation>
CodeCompletionAt("code-completion-at",
                 llvm::cl::value_desc("file:line:column"),
              llvm::cl::desc("Dump code-completion information at a location"));

static llvm::cl::opt<CodeCompletionPrinter>
CodeCompletionPrinter("code-completion-printer",
                      llvm::cl::desc("Choose output type:"),
                      llvm::cl::init(CCP_Debug),
                      llvm::cl::values(
                        clEnumValN(CCP_Debug, "debug",
                          "Debug code-completion results"),
                        clEnumValN(CCP_CIndex, "cindex",
                          "Code-completion results for the CIndex library"),
                        clEnumValEnd));

static llvm::cl::opt<bool>
CodeCompletionWantsMacros("code-completion-macros",
                 llvm::cl::desc("Include macros in code-completion results"));

/// \brief Buld a new code-completion consumer that prints the results of
/// code completion to standard output.
static CodeCompleteConsumer *BuildPrintingCodeCompleter(Sema &S, void *) {
  switch (CodeCompletionPrinter.getValue()) {
  case CCP_Debug:
    return new PrintingCodeCompleteConsumer(S, CodeCompletionWantsMacros,
                                            llvm::outs());

  case CCP_CIndex:
    return new CIndexCodeCompleteConsumer(S, CodeCompletionWantsMacros,
                                          llvm::outs());
  };

  return 0;
}

//===----------------------------------------------------------------------===//
// Frontend Actions
//===----------------------------------------------------------------------===//

enum ProgActions {
  RewriteObjC,                  // ObjC->C Rewriter.
  RewriteBlocks,                // ObjC->C Rewriter for Blocks.