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//===-- CompilerInvocation.h - Compiler Invocation Helper Data --*- C++ -*-===//
// The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Basic/FileSystemOptions.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Frontend/CodeGenOptions.h"
#include "clang/Frontend/DependencyOutputOptions.h"
#include "clang/Frontend/FrontendOptions.h"
#include "clang/Frontend/LangStandard.h"
#include "clang/Frontend/MigratorOptions.h"
#include "clang/Frontend/PreprocessorOutputOptions.h"
#include "clang/Lex/HeaderSearchOptions.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include <string>
#include <vector>
namespace llvm {
namespace opt {
class ArgList;
namespace clang {
class CompilerInvocation;
class DiagnosticsEngine;
/// \brief Fill out Opts based on the options given in Args.
/// Args must have been created from the OptTable returned by
/// createCC1OptTable().
/// When errors are encountered, return false and, if Diags is non-null,
/// report the error(s).
bool ParseDiagnosticArgs(DiagnosticOptions &Opts, llvm::opt::ArgList &Args,
DiagnosticsEngine *Diags = nullptr);
class CompilerInvocationBase : public RefCountedBase<CompilerInvocation> {
void operator=(const CompilerInvocationBase &) LLVM_DELETED_FUNCTION;
/// Options controlling the language variant.
std::shared_ptr<LangOptions> LangOpts;
/// Options controlling the target.
std::shared_ptr<TargetOptions> TargetOpts;
/// Options controlling the diagnostic engine.
IntrusiveRefCntPtr<DiagnosticOptions> DiagnosticOpts;
/// Options controlling the \#include directive.
IntrusiveRefCntPtr<HeaderSearchOptions> HeaderSearchOpts;
/// Options controlling the preprocessor (aside from \#include handling).
IntrusiveRefCntPtr<PreprocessorOptions> PreprocessorOpts;
CompilerInvocationBase(const CompilerInvocationBase &X);
LangOptions *getLangOpts() { return LangOpts.get(); }
const LangOptions *getLangOpts() const { return LangOpts.get(); }
TargetOptions &getTargetOpts() { return *TargetOpts.get(); }
const TargetOptions &getTargetOpts() const {
return *TargetOpts.get();
DiagnosticOptions &getDiagnosticOpts() const { return *DiagnosticOpts; }
HeaderSearchOptions &getHeaderSearchOpts() { return *HeaderSearchOpts; }
const HeaderSearchOptions &getHeaderSearchOpts() const {
return *HeaderSearchOpts;
PreprocessorOptions &getPreprocessorOpts() { return *PreprocessorOpts; }
const PreprocessorOptions &getPreprocessorOpts() const {
return *PreprocessorOpts;
/// \brief Helper class for holding the data necessary to invoke the compiler.
/// This class is designed to represent an abstract "invocation" of the
/// compiler, including data such as the include paths, the code generation
/// options, the warning flags, and so on.
class CompilerInvocation : public CompilerInvocationBase {
/// Options controlling the static analyzer.
AnalyzerOptionsRef AnalyzerOpts;
MigratorOptions MigratorOpts;
/// Options controlling IRgen and the backend.
CodeGenOptions CodeGenOpts;
/// Options controlling dependency output.
DependencyOutputOptions DependencyOutputOpts;
/// Options controlling file system operations.
FileSystemOptions FileSystemOpts;
/// Options controlling the frontend itself.
FrontendOptions FrontendOpts;
/// Options controlling preprocessed output.
PreprocessorOutputOptions PreprocessorOutputOpts;
CompilerInvocation() : AnalyzerOpts(new AnalyzerOptions()) {}
/// @name Utility Methods
/// @{
/// \brief Create a compiler invocation from a list of input options.
/// \returns true on success.
/// \param [out] Res - The resulting invocation.
/// \param ArgBegin - The first element in the argument vector.
/// \param ArgEnd - The last element in the argument vector.
/// \param Diags - The diagnostic engine to use for errors.
static bool CreateFromArgs(CompilerInvocation &Res,
const char* const *ArgBegin,
const char* const *ArgEnd,
DiagnosticsEngine &Diags);
/// \brief Get the directory where the compiler headers
/// reside, relative to the compiler binary (found by the passed in
/// arguments).
/// \param Argv0 - The program path (from argv[0]), for finding the builtin
/// compiler path.
/// \param MainAddr - The address of main (or some other function in the main
/// executable), for finding the builtin compiler path.
static std::string GetResourcesPath(const char *Argv0, void *MainAddr);
/// \brief Set language defaults for the given input language and
/// language standard in the given LangOptions object.
/// \param Opts - The LangOptions object to set up.
/// \param IK - The input language.
/// \param LangStd - The input language standard.
static void setLangDefaults(LangOptions &Opts, InputKind IK,
LangStandard::Kind LangStd = LangStandard::lang_unspecified);
/// \brief Retrieve a module hash string that is suitable for uniquely
/// identifying the conditions under which the module was built.
std::string getModuleHash() const;
/// @}
/// @name Option Subgroups
/// @{
AnalyzerOptionsRef getAnalyzerOpts() const {
return AnalyzerOpts;
MigratorOptions &getMigratorOpts() { return MigratorOpts; }
const MigratorOptions &getMigratorOpts() const {
return MigratorOpts;
CodeGenOptions &getCodeGenOpts() { return CodeGenOpts; }
const CodeGenOptions &getCodeGenOpts() const {
return CodeGenOpts;
DependencyOutputOptions &getDependencyOutputOpts() {
return DependencyOutputOpts;
const DependencyOutputOptions &getDependencyOutputOpts() const {
return DependencyOutputOpts;
FileSystemOptions &getFileSystemOpts() { return FileSystemOpts; }
const FileSystemOptions &getFileSystemOpts() const {
return FileSystemOpts;
FrontendOptions &getFrontendOpts() { return FrontendOpts; }
const FrontendOptions &getFrontendOpts() const {
return FrontendOpts;
PreprocessorOutputOptions &getPreprocessorOutputOpts() {
return PreprocessorOutputOpts;
const PreprocessorOutputOptions &getPreprocessorOutputOpts() const {
return PreprocessorOutputOpts;
/// @}
namespace vfs {
class FileSystem;
createVFSFromCompilerInvocation(const CompilerInvocation &CI,
DiagnosticsEngine &Diags);
} // end namespace clang