diff options
Diffstat (limited to 'contrib/llvm/tools/lldb/source/Plugins/Language/CPlusPlus/BlockPointer.cpp')
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Plugins/Language/CPlusPlus/BlockPointer.cpp | 316 |
1 files changed, 151 insertions, 165 deletions
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Language/CPlusPlus/BlockPointer.cpp b/contrib/llvm/tools/lldb/source/Plugins/Language/CPlusPlus/BlockPointer.cpp index 92e30d5..db7c246 100644 --- a/contrib/llvm/tools/lldb/source/Plugins/Language/CPlusPlus/BlockPointer.cpp +++ b/contrib/llvm/tools/lldb/source/Plugins/Language/CPlusPlus/BlockPointer.cpp @@ -27,199 +27,185 @@ using namespace lldb; using namespace lldb_private; using namespace lldb_private::formatters; -namespace lldb_private -{ -namespace formatters -{ +namespace lldb_private { +namespace formatters { -class BlockPointerSyntheticFrontEnd : public SyntheticChildrenFrontEnd -{ +class BlockPointerSyntheticFrontEnd : public SyntheticChildrenFrontEnd { public: - BlockPointerSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp) - : SyntheticChildrenFrontEnd(*valobj_sp), - m_block_struct_type() - { - CompilerType block_pointer_type(m_backend.GetCompilerType()); - CompilerType function_pointer_type; - block_pointer_type.IsBlockPointerType(&function_pointer_type); - - TargetSP target_sp(m_backend.GetTargetSP()); - - if (!target_sp) - { - return; - } - - Error err; - TypeSystem *type_system = target_sp->GetScratchTypeSystemForLanguage(&err, lldb::eLanguageTypeC_plus_plus); - - if (!err.Success() || !type_system) - { - return; - } - - ClangASTContext *clang_ast_context = llvm::dyn_cast<ClangASTContext>(type_system); - - if (!clang_ast_context) - { - return; - } - - ClangASTImporterSP clang_ast_importer = target_sp->GetClangASTImporter(); - - if (!clang_ast_importer) - { - return; - } - - const char *const isa_name("__isa"); - const CompilerType isa_type = clang_ast_context->GetBasicType(lldb::eBasicTypeObjCClass); - const char *const flags_name("__flags"); - const CompilerType flags_type = clang_ast_context->GetBasicType(lldb::eBasicTypeInt); - const char *const reserved_name("__reserved"); - const CompilerType reserved_type = clang_ast_context->GetBasicType(lldb::eBasicTypeInt); - const char *const FuncPtr_name("__FuncPtr"); - const CompilerType FuncPtr_type = clang_ast_importer->CopyType(*clang_ast_context, function_pointer_type); - - m_block_struct_type = clang_ast_context->CreateStructForIdentifier(ConstString(), - { - {isa_name, isa_type}, - {flags_name, flags_type}, - {reserved_name, reserved_type}, - {FuncPtr_name, FuncPtr_type} - }); + BlockPointerSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp) + : SyntheticChildrenFrontEnd(*valobj_sp), m_block_struct_type() { + CompilerType block_pointer_type(m_backend.GetCompilerType()); + CompilerType function_pointer_type; + block_pointer_type.IsBlockPointerType(&function_pointer_type); + TargetSP target_sp(m_backend.GetTargetSP()); + + if (!target_sp) { + return; + } + + Error err; + TypeSystem *type_system = target_sp->GetScratchTypeSystemForLanguage( + &err, lldb::eLanguageTypeC_plus_plus); + + if (!err.Success() || !type_system) { + return; + } + + ClangASTContext *clang_ast_context = + llvm::dyn_cast<ClangASTContext>(type_system); + + if (!clang_ast_context) { + return; } - ~BlockPointerSyntheticFrontEnd() override = default; + ClangASTImporterSP clang_ast_importer = target_sp->GetClangASTImporter(); - size_t - CalculateNumChildren() override - { - const bool omit_empty_base_classes = false; - return m_block_struct_type.GetNumChildren(omit_empty_base_classes); + if (!clang_ast_importer) { + return; } - lldb::ValueObjectSP - GetChildAtIndex(size_t idx) override - { - if (!m_block_struct_type.IsValid()) - { - return lldb::ValueObjectSP(); - } - - if (idx >= CalculateNumChildren()) - { - return lldb::ValueObjectSP(); - } - - const bool thread_and_frame_only_if_stopped = true; - ExecutionContext exe_ctx = m_backend.GetExecutionContextRef().Lock(thread_and_frame_only_if_stopped); - const bool transparent_pointers = false; - const bool omit_empty_base_classes = false; - const bool ignore_array_bounds = false; - ValueObject *value_object = nullptr; - - std::string child_name; - uint32_t child_byte_size = 0; - int32_t child_byte_offset = 0; - uint32_t child_bitfield_bit_size = 0; - uint32_t child_bitfield_bit_offset = 0; - bool child_is_base_class = false; - bool child_is_deref_of_parent = false; - uint64_t language_flags = 0; - - const CompilerType child_type = m_block_struct_type.GetChildCompilerTypeAtIndex(&exe_ctx, idx, transparent_pointers, omit_empty_base_classes, ignore_array_bounds, child_name, child_byte_size, child_byte_offset, child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class, child_is_deref_of_parent, value_object, language_flags); - - ValueObjectSP struct_pointer_sp = m_backend.Cast(m_block_struct_type.GetPointerType()); - - if (!struct_pointer_sp) - { - return lldb::ValueObjectSP(); - } - - Error err; - ValueObjectSP struct_sp = struct_pointer_sp->Dereference(err); - - if (!struct_sp || !err.Success()) - { - return lldb::ValueObjectSP(); - } - - ValueObjectSP child_sp(struct_sp->GetSyntheticChildAtOffset(child_byte_offset, - child_type, - true, - ConstString(child_name.c_str(), child_name.size()))); - - return child_sp; + const char *const isa_name("__isa"); + const CompilerType isa_type = + clang_ast_context->GetBasicType(lldb::eBasicTypeObjCClass); + const char *const flags_name("__flags"); + const CompilerType flags_type = + clang_ast_context->GetBasicType(lldb::eBasicTypeInt); + const char *const reserved_name("__reserved"); + const CompilerType reserved_type = + clang_ast_context->GetBasicType(lldb::eBasicTypeInt); + const char *const FuncPtr_name("__FuncPtr"); + const CompilerType FuncPtr_type = + clang_ast_importer->CopyType(*clang_ast_context, function_pointer_type); + + m_block_struct_type = clang_ast_context->CreateStructForIdentifier( + ConstString(), {{isa_name, isa_type}, + {flags_name, flags_type}, + {reserved_name, reserved_type}, + {FuncPtr_name, FuncPtr_type}}); + } + + ~BlockPointerSyntheticFrontEnd() override = default; + + size_t CalculateNumChildren() override { + const bool omit_empty_base_classes = false; + return m_block_struct_type.GetNumChildren(omit_empty_base_classes); + } + + lldb::ValueObjectSP GetChildAtIndex(size_t idx) override { + if (!m_block_struct_type.IsValid()) { + return lldb::ValueObjectSP(); } - // return true if this object is now safe to use forever without - // ever updating again; the typical (and tested) answer here is - // 'false' - bool - Update() override - { - return false; + if (idx >= CalculateNumChildren()) { + return lldb::ValueObjectSP(); } - // maybe return false if the block pointer is, say, null - bool - MightHaveChildren() override - { - return true; + const bool thread_and_frame_only_if_stopped = true; + ExecutionContext exe_ctx = m_backend.GetExecutionContextRef().Lock( + thread_and_frame_only_if_stopped); + const bool transparent_pointers = false; + const bool omit_empty_base_classes = false; + const bool ignore_array_bounds = false; + ValueObject *value_object = nullptr; + + std::string child_name; + uint32_t child_byte_size = 0; + int32_t child_byte_offset = 0; + uint32_t child_bitfield_bit_size = 0; + uint32_t child_bitfield_bit_offset = 0; + bool child_is_base_class = false; + bool child_is_deref_of_parent = false; + uint64_t language_flags = 0; + + const CompilerType child_type = + m_block_struct_type.GetChildCompilerTypeAtIndex( + &exe_ctx, idx, transparent_pointers, omit_empty_base_classes, + ignore_array_bounds, child_name, child_byte_size, child_byte_offset, + child_bitfield_bit_size, child_bitfield_bit_offset, + child_is_base_class, child_is_deref_of_parent, value_object, + language_flags); + + ValueObjectSP struct_pointer_sp = + m_backend.Cast(m_block_struct_type.GetPointerType()); + + if (!struct_pointer_sp) { + return lldb::ValueObjectSP(); } - size_t - GetIndexOfChildWithName(const ConstString &name) override - { - if (!m_block_struct_type.IsValid()) - return UINT32_MAX; - - const bool omit_empty_base_classes = false; - return m_block_struct_type.GetIndexOfChildWithName(name.AsCString(), omit_empty_base_classes); + Error err; + ValueObjectSP struct_sp = struct_pointer_sp->Dereference(err); + + if (!struct_sp || !err.Success()) { + return lldb::ValueObjectSP(); } + ValueObjectSP child_sp(struct_sp->GetSyntheticChildAtOffset( + child_byte_offset, child_type, true, + ConstString(child_name.c_str(), child_name.size()))); + + return child_sp; + } + + // return true if this object is now safe to use forever without + // ever updating again; the typical (and tested) answer here is + // 'false' + bool Update() override { return false; } + + // maybe return false if the block pointer is, say, null + bool MightHaveChildren() override { return true; } + + size_t GetIndexOfChildWithName(const ConstString &name) override { + if (!m_block_struct_type.IsValid()) + return UINT32_MAX; + + const bool omit_empty_base_classes = false; + return m_block_struct_type.GetIndexOfChildWithName(name.AsCString(), + omit_empty_base_classes); + } + private: - CompilerType m_block_struct_type; + CompilerType m_block_struct_type; }; } // namespace formatters } // namespace lldb_private -bool -lldb_private::formatters::BlockPointerSummaryProvider(ValueObject &valobj, Stream &s, const TypeSummaryOptions &) -{ - lldb_private::SyntheticChildrenFrontEnd *synthetic_children = BlockPointerSyntheticFrontEndCreator(nullptr, valobj.GetSP()); - if (!synthetic_children) - { - return false; - } +bool lldb_private::formatters::BlockPointerSummaryProvider( + ValueObject &valobj, Stream &s, const TypeSummaryOptions &) { + lldb_private::SyntheticChildrenFrontEnd *synthetic_children = + BlockPointerSyntheticFrontEndCreator(nullptr, valobj.GetSP()); + if (!synthetic_children) { + return false; + } - synthetic_children->Update(); + synthetic_children->Update(); - static const ConstString s_FuncPtr_name("__FuncPtr"); - - lldb::ValueObjectSP child_sp = synthetic_children->GetChildAtIndex(synthetic_children->GetIndexOfChildWithName(s_FuncPtr_name)); - - if (!child_sp) - { - return false; - } - - lldb::ValueObjectSP qualified_child_representation_sp = child_sp->GetQualifiedRepresentationIfAvailable(lldb::eDynamicDontRunTarget, true); + static const ConstString s_FuncPtr_name("__FuncPtr"); + + lldb::ValueObjectSP child_sp = synthetic_children->GetChildAtIndex( + synthetic_children->GetIndexOfChildWithName(s_FuncPtr_name)); + + if (!child_sp) { + return false; + } + + lldb::ValueObjectSP qualified_child_representation_sp = + child_sp->GetQualifiedRepresentationIfAvailable( + lldb::eDynamicDontRunTarget, true); - const char *child_value = qualified_child_representation_sp->GetValueAsCString(); + const char *child_value = + qualified_child_representation_sp->GetValueAsCString(); - s.Printf("%s", child_value); + s.Printf("%s", child_value); - return true; + return true; } lldb_private::SyntheticChildrenFrontEnd * -lldb_private::formatters::BlockPointerSyntheticFrontEndCreator(CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) -{ - if (!valobj_sp) - return nullptr; - return new BlockPointerSyntheticFrontEnd(valobj_sp); +lldb_private::formatters::BlockPointerSyntheticFrontEndCreator( + CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) { + if (!valobj_sp) + return nullptr; + return new BlockPointerSyntheticFrontEnd(valobj_sp); } |
