176 lines
5.1 KiB
C++
176 lines
5.1 KiB
C++
//===--- LangOptions.h - C Language Family Language Options -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief Defines the clang::LangOptions interface.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_BASIC_LANGOPTIONS_H
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#define LLVM_CLANG_BASIC_LANGOPTIONS_H
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#include "clang/Basic/CommentOptions.h"
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#include "clang/Basic/LLVM.h"
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#include "clang/Basic/ObjCRuntime.h"
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#include "clang/Basic/Sanitizers.h"
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#include "clang/Basic/Visibility.h"
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#include <string>
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#include <vector>
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namespace clang {
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/// Bitfields of LangOptions, split out from LangOptions in order to ensure that
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/// this large collection of bitfields is a trivial class type.
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class LangOptionsBase {
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public:
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// Define simple language options (with no accessors).
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#define LANGOPT(Name, Bits, Default, Description) unsigned Name : Bits;
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#define ENUM_LANGOPT(Name, Type, Bits, Default, Description)
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#include "clang/Basic/LangOptions.def"
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protected:
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// Define language options of enumeration type. These are private, and will
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// have accessors (below).
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#define LANGOPT(Name, Bits, Default, Description)
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#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
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unsigned Name : Bits;
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#include "clang/Basic/LangOptions.def"
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};
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/// \brief Keeps track of the various options that can be
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/// enabled, which controls the dialect of C or C++ that is accepted.
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class LangOptions : public LangOptionsBase {
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public:
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typedef clang::Visibility Visibility;
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enum GCMode { NonGC, GCOnly, HybridGC };
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enum StackProtectorMode { SSPOff, SSPOn, SSPStrong, SSPReq };
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enum SignedOverflowBehaviorTy {
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SOB_Undefined, // Default C standard behavior.
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SOB_Defined, // -fwrapv
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SOB_Trapping // -ftrapv
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};
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enum PragmaMSPointersToMembersKind {
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PPTMK_BestCase,
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PPTMK_FullGeneralitySingleInheritance,
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PPTMK_FullGeneralityMultipleInheritance,
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PPTMK_FullGeneralityVirtualInheritance
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};
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enum AddrSpaceMapMangling { ASMM_Target, ASMM_On, ASMM_Off };
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enum MSVCMajorVersion {
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MSVC2010 = 16,
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MSVC2012 = 17,
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MSVC2013 = 18,
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MSVC2015 = 19
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};
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public:
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/// \brief Set of enabled sanitizers.
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SanitizerSet Sanitize;
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/// \brief Paths to blacklist files specifying which objects
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/// (files, functions, variables) should not be instrumented.
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std::vector<std::string> SanitizerBlacklistFiles;
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clang::ObjCRuntime ObjCRuntime;
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std::string ObjCConstantStringClass;
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/// \brief The name of the handler function to be called when -ftrapv is
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/// specified.
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///
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/// If none is specified, abort (GCC-compatible behaviour).
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std::string OverflowHandler;
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/// \brief The name of the current module.
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std::string CurrentModule;
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/// \brief The name of the module that the translation unit is an
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/// implementation of. Prevents semantic imports, but does not otherwise
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/// treat this as the CurrentModule.
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std::string ImplementationOfModule;
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/// \brief The names of any features to enable in module 'requires' decls
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/// in addition to the hard-coded list in Module.cpp and the target features.
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///
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/// This list is sorted.
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std::vector<std::string> ModuleFeatures;
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/// \brief Options for parsing comments.
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CommentOptions CommentOpts;
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LangOptions();
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// Define accessors/mutators for language options of enumeration type.
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#define LANGOPT(Name, Bits, Default, Description)
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#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
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Type get##Name() const { return static_cast<Type>(Name); } \
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void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
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#include "clang/Basic/LangOptions.def"
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bool isSignedOverflowDefined() const {
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return getSignedOverflowBehavior() == SOB_Defined;
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}
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bool isSubscriptPointerArithmetic() const {
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return ObjCRuntime.isSubscriptPointerArithmetic() &&
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!ObjCSubscriptingLegacyRuntime;
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}
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bool isCompatibleWithMSVC(MSVCMajorVersion MajorVersion) const {
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return MSCompatibilityVersion >= MajorVersion * 10000000U;
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}
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/// \brief Reset all of the options that are not considered when building a
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/// module.
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void resetNonModularOptions();
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};
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/// \brief Floating point control options
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class FPOptions {
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public:
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unsigned fp_contract : 1;
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FPOptions() : fp_contract(0) {}
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FPOptions(const LangOptions &LangOpts) :
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fp_contract(LangOpts.DefaultFPContract) {}
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};
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/// \brief OpenCL volatile options
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class OpenCLOptions {
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public:
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#define OPENCLEXT(nm) unsigned nm : 1;
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#include "clang/Basic/OpenCLExtensions.def"
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OpenCLOptions() {
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#define OPENCLEXT(nm) nm = 0;
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#include "clang/Basic/OpenCLExtensions.def"
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}
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};
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/// \brief Describes the kind of translation unit being processed.
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enum TranslationUnitKind {
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/// \brief The translation unit is a complete translation unit.
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TU_Complete,
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/// \brief The translation unit is a prefix to a translation unit, and is
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/// not complete.
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TU_Prefix,
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/// \brief The translation unit is a module.
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TU_Module
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};
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} // end namespace clang
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#endif
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