TypeSystemClang.cpp File Reference

#include "TypeSystemClang.h"
#include "llvm/Support/FormatAdapters.h"
#include "llvm/Support/FormatVariadic.h"
#include <mutex>
#include <string>
#include <vector>
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTImporter.h"
#include "clang/AST/Attr.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Mangle.h"
#include "clang/AST/RecordLayout.h"
#include "clang/AST/Type.h"
#include "clang/AST/VTableBuilder.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/FileSystemOptions.h"
#include "clang/Basic/LangStandard.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Frontend/FrontendOptions.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/HeaderSearchOptions.h"
#include "clang/Lex/ModuleMap.h"
#include "clang/Sema/Sema.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/Threading.h"
#include "Plugins/ExpressionParser/Clang/ClangASTImporter.h"
#include "Plugins/ExpressionParser/Clang/ClangASTMetadata.h"
#include "Plugins/ExpressionParser/Clang/ClangExternalASTSourceCallbacks.h"
#include "Plugins/ExpressionParser/Clang/ClangFunctionCaller.h"
#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h"
#include "Plugins/ExpressionParser/Clang/ClangUserExpression.h"
#include "Plugins/ExpressionParser/Clang/ClangUtil.h"
#include "Plugins/ExpressionParser/Clang/ClangUtilityFunction.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/Flags.h"
#include "lldb/Core/DumpDataExtractor.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/ThreadSafeDenseMap.h"
#include "lldb/Core/UniqueCStringMap.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Language.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/LLDBAssert.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/RegularExpression.h"
#include "lldb/Utility/Scalar.h"
#include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h"
#include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h"
#include "Plugins/SymbolFile/PDB/PDBASTParser.h"
#include <cstdio>
#include "clang/Basic/OperatorKinds.def"

Go to the source code of this file.

Classes
class	NullDiagnosticConsumer

Macros
#define	OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly)
#define	DEPTH_INCREMENT   2

Typedefs
typedef lldb_private::ThreadSafeDenseMap< clang::ASTContext *, TypeSystemClang * >	ClangASTMap

Functions
static lldb::addr_t	GetVTableAddress (Process &process, VTableContextBase &vtable_ctx, ValueObject &valobj, const ASTRecordLayout &record_layout)
static int64_t	ReadVBaseOffsetFromVTable (Process &process, VTableContextBase &vtable_ctx, lldb::addr_t vtable_ptr, const CXXRecordDecl *cxx_record_decl, const CXXRecordDecl *base_class_decl)
static bool	GetVBaseBitOffset (VTableContextBase &vtable_ctx, ValueObject &valobj, const ASTRecordLayout &record_layout, const CXXRecordDecl *cxx_record_decl, const CXXRecordDecl *base_class_decl, int32_t &bit_offset)
static ClangASTMap &	GetASTMap ()
static void	SetMemberOwningModule (clang::Decl *member, const clang::Decl *parent)
static void	ParseLangArgs (LangOptions &Opts, InputKind IK, const char *triple)
static bool	QualTypeMatchesBitSize (const uint64_t bit_size, ASTContext &ast, QualType qual_type)
static TemplateParameterList *	CreateTemplateParameterList (ASTContext &ast, const TypeSystemClang::TemplateParameterInfos &template_param_infos, llvm::SmallVector< NamedDecl *, 8 > &template_param_decls)
static bool	TemplateParameterAllowsValue (NamedDecl *param, const TemplateArgument &value)
	Returns true if the given template parameter can represent the given value. More...
static bool	ClassTemplateAllowsToInstantiationArgs (ClassTemplateDecl *class_template_decl, const TypeSystemClang::TemplateParameterInfos &instantiation_values)
	Returns true if the given class template declaration could produce an instantiation with the specified values. More...
static bool	check_op_param (bool is_method, clang::OverloadedOperatorKind op_kind, bool unary, bool binary, uint32_t num_params)
static bool	BaseSpecifierIsEmpty (const CXXBaseSpecifier *b)
clang::DeclContext *	FindLCABetweenDecls (clang::DeclContext *left, clang::DeclContext *right, clang::DeclContext *root)
static QualType	RemoveWrappingTypes (QualType type, ArrayRef< clang::Type::TypeClass > mask={})
	Aggressively desugar the provided type, skipping past various kinds of syntactic sugar and other constructs one typically wants to ignore. More...
static bool	GetCompleteQualType (clang::ASTContext *ast, clang::QualType qual_type, bool allow_completion=true)
static clang::ObjCIvarDecl::AccessControl	ConvertAccessTypeToObjCIvarAccessControl (AccessType access)
static clang::QualType	GetFullyUnqualifiedType_Impl (clang::ASTContext *ast, clang::QualType qual_type)
static bool	ObjCDeclHasIVars (clang::ObjCInterfaceDecl *class_interface_decl, bool check_superclass)
static Optional< SymbolFile::ArrayInfo >	GetDynamicArrayInfo (TypeSystemClang &ast, SymbolFile *sym_file, clang::QualType qual_type, const ExecutionContext *exe_ctx)
static lldb::opaque_compiler_type_t	GetObjCFieldAtIndex (clang::ASTContext *ast, clang::ObjCInterfaceDecl *class_interface_decl, size_t idx, std::string &name, uint64_t *bit_offset_ptr, uint32_t *bitfield_bit_size_ptr, bool *is_bitfield_ptr)
static uint32_t	GetIndexForRecordBase (const clang::RecordDecl *record_decl, const clang::CXXBaseSpecifier *base_spec, bool omit_empty_base_classes)
static uint32_t	GetIndexForRecordChild (const clang::RecordDecl *record_decl, clang::NamedDecl *canonical_decl, bool omit_empty_base_classes)
static bool	DumpEnumValue (const clang::QualType &qual_type, Stream *s, const DataExtractor &data, lldb::offset_t byte_offset, size_t byte_size, uint32_t bitfield_bit_offset, uint32_t bitfield_bit_size)
static bool	IsClangDeclContext (const CompilerDeclContext &dc)
static llvm::StringRef	GetNameForIsolatedASTKind (ScratchTypeSystemClang::IsolatedASTKind kind)
	Returns a human-readable name that uniquely identifiers the sub-AST kind. More...
static llvm::StringRef	GetSpecializedASTName (ScratchTypeSystemClang::IsolatedASTKind feature)

Macro Definition Documentation

DEPTH_INCREMENT

#define DEPTH_INCREMENT   2

Definition at line 8409 of file TypeSystemClang.cpp.

OVERLOADED_OPERATOR

#define OVERLOADED_OPERATOR	(		Name,
			Spelling,
			Token,
			Unary,
			Binary,
			MemberOnly
	)

Value:

  case OO_##Name:                                                              \
    return check_op_param(is_method, op_kind, Unary, Binary, num_params);

Typedef Documentation

ClangASTMap

typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, TypeSystemClang *> ClangASTMap

Definition at line 312 of file TypeSystemClang.cpp.

Function Documentation

BaseSpecifierIsEmpty()

static bool BaseSpecifierIsEmpty ( const CXXBaseSpecifier *  b )

inlinestatic

Definition at line 1830 of file TypeSystemClang.cpp.

References lldb_private::TypeSystemClang::RecordHasFields().

Referenced by GetIndexForRecordBase(), and lldb_private::TypeSystemClang::GetNumBaseClasses().

check_op_param()

static bool check_op_param ( bool  is_method, clang::OverloadedOperatorKind  op_kind, bool  unary, bool  binary, uint32_t  num_params  )

inlinestatic

Definition at line 1706 of file TypeSystemClang.cpp.

ClassTemplateAllowsToInstantiationArgs()

static bool ClassTemplateAllowsToInstantiationArgs ( ClassTemplateDecl *  class_template_decl, const TypeSystemClang::TemplateParameterInfos &  instantiation_values  )

static

Returns true if the given class template declaration could produce an instantiation with the specified values.

For example, <typename T> allows the arguments float, but not for example bool, float or 3 (as an integer parameter value).

Definition at line 1514 of file TypeSystemClang.cpp.

References lldb_private::TypeSystemClang::TemplateParameterInfos::args, lldb_private::TypeSystemClang::TemplateParameterInfos::hasParameterPack(), lldb_private::TypeSystemClang::TemplateParameterInfos::packed_args, and TemplateParameterAllowsValue().

Referenced by lldb_private::TypeSystemClang::CreateClassTemplateDecl().

ConvertAccessTypeToObjCIvarAccessControl()

static clang::ObjCIvarDecl::AccessControl ConvertAccessTypeToObjCIvarAccessControl ( AccessType  access )

static

Definition at line 2776 of file TypeSystemClang.cpp.

References lldb::eAccessNone, lldb::eAccessPackage, lldb::eAccessPrivate, lldb::eAccessProtected, and lldb::eAccessPublic.

Referenced by lldb_private::TypeSystemClang::AddFieldToRecordType().

CreateTemplateParameterList()

static TemplateParameterList* CreateTemplateParameterList ( ASTContext &  ast, const TypeSystemClang::TemplateParameterInfos &  template_param_infos, llvm::SmallVector< NamedDecl *, 8 > &  template_param_decls  )

static

Definition at line 1373 of file TypeSystemClang.cpp.

References lldb_private::TypeSystemClang::TemplateParameterInfos::args, lldb_private::TypeSystemClang::TemplateParameterInfos::names, lldb_private::TypeSystemClang::TemplateParameterInfos::pack_name, and lldb_private::TypeSystemClang::TemplateParameterInfos::packed_args.

Referenced by lldb_private::TypeSystemClang::CreateClassTemplateDecl(), lldb_private::TypeSystemClang::CreateFunctionTemplateDecl(), and lldb_private::TypeSystemClang::CreateTemplateTemplateParmDecl().

DumpEnumValue()

static bool DumpEnumValue ( const clang::QualType &  qual_type, Stream *  s, const DataExtractor &  data, lldb::offset_t  byte_offset, size_t  byte_size, uint32_t  bitfield_bit_offset, uint32_t  bitfield_bit_size  )

static

Definition at line 8840 of file TypeSystemClang.cpp.

References lldb_private::DataExtractor::GetMaxS64Bitfield(), lldb_private::DataExtractor::GetMaxU64Bitfield(), lldb_private::Stream::Printf(), and lldb_private::Stream::PutCString().

Referenced by lldb_private::TypeSystemClang::DumpTypeValue().

FindLCABetweenDecls()

clang::DeclContext* FindLCABetweenDecls	(	clang::DeclContext *	left,
		clang::DeclContext *	right,
		clang::DeclContext *	root
	)

Definition at line 1934 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::CreateUsingDirectiveDeclaration().

GetASTMap()

static ClangASTMap& GetASTMap ( )

static

Definition at line 314 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::CreateASTContext(), lldb_private::TypeSystemClang::Finalize(), and lldb_private::TypeSystemClang::GetASTContext().

GetCompleteQualType()

static bool GetCompleteQualType ( clang::ASTContext *  ast, clang::QualType  qual_type, bool  allow_completion = true  )

static

Definition at line 2658 of file TypeSystemClang.cpp.

References RemoveWrappingTypes().

Referenced by lldb_private::TypeSystemClang::GetCompleteType(), lldb_private::TypeSystemClang::GetMemberFunctionAtIndex(), lldb_private::TypeSystemClang::GetNumChildren(), lldb_private::TypeSystemClang::GetNumMemberFunctions(), and lldb_private::TypeSystemClang::IsCompleteType().

GetDynamicArrayInfo()

static Optional<SymbolFile::ArrayInfo> GetDynamicArrayInfo ( TypeSystemClang &  ast, SymbolFile *  sym_file, clang::QualType  qual_type, const ExecutionContext *  exe_ctx  )

static

Definition at line 5303 of file TypeSystemClang.cpp.

References lldb_private::SymbolFile::GetDynamicArrayInfoForUID(), and lldb_private::TypeSystemClang::GetMetadata().

Referenced by lldb_private::TypeSystemClang::GetNumChildren().

GetFullyUnqualifiedType_Impl()

static clang::QualType GetFullyUnqualifiedType_Impl ( clang::ASTContext *  ast, clang::QualType  qual_type  )

static

Definition at line 4269 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::GetFullyUnqualifiedType().

GetIndexForRecordBase()

static uint32_t GetIndexForRecordBase ( const clang::RecordDecl *  record_decl, const clang::CXXBaseSpecifier *  base_spec, bool  omit_empty_base_classes  )

static

Definition at line 6580 of file TypeSystemClang.cpp.

References BaseSpecifierIsEmpty(), and UINT32_MAX.

Referenced by lldb_private::TypeSystemClang::GetIndexOfChildMemberWithName().

GetIndexForRecordChild()

static uint32_t GetIndexForRecordChild ( const clang::RecordDecl *  record_decl, clang::NamedDecl *  canonical_decl, bool  omit_empty_base_classes  )

static

Definition at line 6607 of file TypeSystemClang.cpp.

References lldb_private::TypeSystemClang::GetNumBaseClasses(), and UINT32_MAX.

Referenced by lldb_private::TypeSystemClang::GetIndexOfChildMemberWithName().

GetNameForIsolatedASTKind()

static llvm::StringRef GetNameForIsolatedASTKind ( ScratchTypeSystemClang::IsolatedASTKind  kind )

static

Returns a human-readable name that uniquely identifiers the sub-AST kind.

Definition at line 9811 of file TypeSystemClang.cpp.

Referenced by lldb_private::ScratchTypeSystemClang::Dump().

GetObjCFieldAtIndex()

static lldb::opaque_compiler_type_t GetObjCFieldAtIndex ( clang::ASTContext *  ast, clang::ObjCInterfaceDecl *  class_interface_decl, size_t  idx, std::string &  name, uint64_t *  bit_offset_ptr, uint32_t *  bitfield_bit_size_ptr, bool *  is_bitfield_ptr  )

static

Definition at line 5636 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::GetFieldAtIndex().

GetSpecializedASTName()

static llvm::StringRef GetSpecializedASTName ( ScratchTypeSystemClang::IsolatedASTKind  feature )

static

Definition at line 9904 of file TypeSystemClang.cpp.

Referenced by lldb_private::ScratchTypeSystemClang::GetIsolatedAST().

GetVBaseBitOffset()

static bool GetVBaseBitOffset ( VTableContextBase &  vtable_ctx, ValueObject &  valobj, const ASTRecordLayout &  record_layout, const CXXRecordDecl *  cxx_record_decl, const CXXRecordDecl *  base_class_decl, int32_t &  bit_offset  )

static

Definition at line 285 of file TypeSystemClang.cpp.

References lldb_private::ValueObject::GetExecutionContextRef(), lldb_private::ExecutionContext::GetProcessPtr(), GetVTableAddress(), LLDB_INVALID_ADDRESS, and ReadVBaseOffsetFromVTable().

Referenced by lldb_private::TypeSystemClang::GetChildCompilerTypeAtIndex().

GetVTableAddress()

static lldb::addr_t GetVTableAddress ( Process &  process, VTableContextBase &  vtable_ctx, ValueObject &  valobj, const ASTRecordLayout &  record_layout  )

static

Definition at line 195 of file TypeSystemClang.cpp.

References lldb_private::eAddressTypeLoad, lldb_private::Status::Fail(), lldb_private::DataExtractor::GetAddress(), lldb_private::DataExtractor::GetAddressByteSize(), lldb_private::ValueObject::GetAddressTypeOfChildren(), lldb_private::ValueObject::GetCompilerType(), lldb_private::ValueObject::GetData(), lldb_private::CompilerType::GetTypeInfo(), lldb_private::ValueObject::GetValueAsUnsigned(), LLDB_INVALID_ADDRESS, and lldb_private::Process::ReadPointerFromMemory().

Referenced by GetVBaseBitOffset().

IsClangDeclContext()

static bool IsClangDeclContext ( const CompilerDeclContext &  dc )

static

Definition at line 9682 of file TypeSystemClang.cpp.

References lldb_private::CompilerDeclContext::GetTypeSystem(), and lldb_private::CompilerDeclContext::IsValid().

Referenced by lldb_private::TypeSystemClang::DeclContextGetAsCXXMethodDecl(), lldb_private::TypeSystemClang::DeclContextGetAsDeclContext(), lldb_private::TypeSystemClang::DeclContextGetAsFunctionDecl(), lldb_private::TypeSystemClang::DeclContextGetAsNamespaceDecl(), and lldb_private::TypeSystemClang::DeclContextGetAsObjCMethodDecl().

ObjCDeclHasIVars()

static bool ObjCDeclHasIVars ( clang::ObjCInterfaceDecl *  class_interface_decl, bool  check_superclass  )

static

Definition at line 5288 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::GetIndexOfChildMemberWithName(), lldb_private::TypeSystemClang::GetIndexOfChildWithName(), lldb_private::TypeSystemClang::GetNumChildren(), and lldb_private::TypeSystemClang::IsObjCClassTypeAndHasIVars().

ParseLangArgs()

static void ParseLangArgs ( LangOptions &  Opts, InputKind  IK, const char *  triple  )

static

Definition at line 456 of file TypeSystemClang.cpp.

References lldb_private::ArchSpec::CharIsSignedByDefault().

Referenced by lldb_private::TypeSystemClang::CreateASTContext().

QualTypeMatchesBitSize()

static bool QualTypeMatchesBitSize ( const uint64_t  bit_size, ASTContext &  ast, QualType  qual_type  )

inlinestatic

Definition at line 788 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::GetBuiltinTypeForDWARFEncodingAndBitSize(), and lldb_private::TypeSystemClang::GetBuiltinTypeForEncodingAndBitSize().

ReadVBaseOffsetFromVTable()

static int64_t ReadVBaseOffsetFromVTable ( Process &  process, VTableContextBase &  vtable_ctx, lldb::addr_t  vtable_ptr, const CXXRecordDecl *  cxx_record_decl, const CXXRecordDecl *  base_class_decl  )

static

Definition at line 252 of file TypeSystemClang.cpp.

References lldb_private::Process::GetAddressByteSize(), and lldb_private::Process::ReadSignedIntegerFromMemory().

Referenced by GetVBaseBitOffset().

RemoveWrappingTypes()

static QualType RemoveWrappingTypes ( QualType  type, ArrayRef< clang::Type::TypeClass >  mask = {}  )

static

Aggressively desugar the provided type, skipping past various kinds of syntactic sugar and other constructs one typically wants to ignore.

The mask argument allows one to skip certain kinds of simplifications, when one wishes to handle a certain kind of type directly.

Definition at line 2604 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::DumpTypeDescription(), lldb_private::TypeSystemClang::GetAsTemplateSpecialization(), lldb_private::TypeSystemClang::GetChildCompilerTypeAtIndex(), GetCompleteQualType(), lldb_private::TypeSystemClang::GetDeclContextForType(), lldb_private::TypeSystemClang::GetDirectBaseClassAtIndex(), lldb_private::TypeSystemClang::GetEncoding(), lldb_private::TypeSystemClang::GetFieldAtIndex(), lldb_private::TypeSystemClang::GetFormat(), lldb_private::TypeSystemClang::GetIndexOfChildMemberWithName(), lldb_private::TypeSystemClang::GetIndexOfChildWithName(), lldb_private::TypeSystemClang::GetMemberFunctionAtIndex(), lldb_private::TypeSystemClang::GetNumChildren(), lldb_private::TypeSystemClang::GetNumDirectBaseClasses(), lldb_private::TypeSystemClang::GetNumFields(), lldb_private::TypeSystemClang::GetNumMemberFunctions(), lldb_private::TypeSystemClang::GetNumPointeeChildren(), lldb_private::TypeSystemClang::GetNumTemplateArguments(), lldb_private::TypeSystemClang::GetNumVirtualBaseClasses(), lldb_private::TypeSystemClang::GetTypeClass(), lldb_private::TypeSystemClang::GetTypedefedType(), lldb_private::TypeSystemClang::GetTypeInfo(), lldb_private::TypeSystemClang::GetTypeName(), lldb_private::TypeSystemClang::GetVirtualBaseClassAtIndex(), lldb_private::TypeSystemClang::IsAggregateType(), lldb_private::TypeSystemClang::IsAnonymousType(), lldb_private::TypeSystemClang::IsArrayType(), lldb_private::TypeSystemClang::IsBlockPointerType(), lldb_private::TypeSystemClang::IsFunctionPointerType(), lldb_private::TypeSystemClang::IsFunctionType(), lldb_private::TypeSystemClang::IsHomogeneousAggregate(), lldb_private::TypeSystemClang::IsPointerOrReferenceType(), lldb_private::TypeSystemClang::IsPointerType(), lldb_private::TypeSystemClang::IsPossibleDynamicType(), lldb_private::TypeSystemClang::IsReferenceType(), lldb_private::TypeSystemClang::IsTypedefType(), and lldb_private::TypeSystemClang::SetHasExternalStorage().

SetMemberOwningModule()

static void SetMemberOwningModule ( clang::Decl *  member, const clang::Decl *  parent  )

static

Definition at line 336 of file TypeSystemClang.cpp.

Referenced by lldb_private::TypeSystemClang::AddEnumerationValueToEnumerationType(), lldb_private::TypeSystemClang::AddFieldToRecordType(), lldb_private::TypeSystemClang::AddMethodToCXXRecordType(), lldb_private::TypeSystemClang::AddMethodToObjCObjectType(), lldb_private::TypeSystemClang::AddObjCClassProperty(), lldb_private::TypeSystemClang::AddVariableToRecordType(), and lldb_private::TypeSystemClang::BuildIndirectFields().

TemplateParameterAllowsValue()

static bool TemplateParameterAllowsValue ( NamedDecl *  param, const TemplateArgument &  value  )

static

Returns true if the given template parameter can represent the given value.

For example, typename T can represent int but not integral values such as int I = 3.

Definition at line 1477 of file TypeSystemClang.cpp.

References lldb_private::GetLogIfAllCategoriesSet(), LIBLLDB_LOG_EXPRESSIONS, LLDB_LOG, and lldbassert.

Referenced by ClassTemplateAllowsToInstantiationArgs().