| //===-- NSDictionary.cpp ----------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // C Includes |
| // C++ Includes |
| #include <mutex> |
| |
| // Other libraries and framework includes |
| #include "clang/AST/DeclCXX.h" |
| |
| // Project includes |
| #include "NSDictionary.h" |
| |
| #include "lldb/Core/DataBufferHeap.h" |
| #include "lldb/Core/Error.h" |
| #include "lldb/Core/Stream.h" |
| #include "lldb/Core/ValueObject.h" |
| #include "lldb/Core/ValueObjectConstResult.h" |
| #include "lldb/DataFormatters/FormattersHelpers.h" |
| #include "lldb/Host/Endian.h" |
| #include "lldb/Symbol/ClangASTContext.h" |
| #include "lldb/Target/Language.h" |
| #include "lldb/Target/ObjCLanguageRuntime.h" |
| #include "lldb/Target/StackFrame.h" |
| #include "lldb/Target/Target.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace lldb_private::formatters; |
| |
| std::map<ConstString, CXXFunctionSummaryFormat::Callback>& |
| NSDictionary_Additionals::GetAdditionalSummaries () |
| { |
| static std::map<ConstString, CXXFunctionSummaryFormat::Callback> g_map; |
| return g_map; |
| } |
| |
| std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>& |
| NSDictionary_Additionals::GetAdditionalSynthetics () |
| { |
| static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback> g_map; |
| return g_map; |
| } |
| |
| static CompilerType |
| GetLLDBNSPairType (TargetSP target_sp) |
| { |
| CompilerType compiler_type; |
| |
| ClangASTContext *target_ast_context = target_sp->GetScratchClangASTContext(); |
| |
| if (target_ast_context) |
| { |
| ConstString g___lldb_autogen_nspair("__lldb_autogen_nspair"); |
| |
| compiler_type = target_ast_context->GetTypeForIdentifier<clang::CXXRecordDecl>(g___lldb_autogen_nspair); |
| |
| if (!compiler_type) |
| { |
| compiler_type = target_ast_context->CreateRecordType(nullptr, lldb::eAccessPublic, g___lldb_autogen_nspair.GetCString(), clang::TTK_Struct, lldb::eLanguageTypeC); |
| |
| if (compiler_type) |
| { |
| ClangASTContext::StartTagDeclarationDefinition(compiler_type); |
| CompilerType id_compiler_type = target_ast_context->GetBasicType (eBasicTypeObjCID); |
| ClangASTContext::AddFieldToRecordType(compiler_type, "key", id_compiler_type, lldb::eAccessPublic, 0); |
| ClangASTContext::AddFieldToRecordType(compiler_type, "value", id_compiler_type, lldb::eAccessPublic, 0); |
| ClangASTContext::CompleteTagDeclarationDefinition(compiler_type); |
| } |
| } |
| } |
| return compiler_type; |
| } |
| |
| namespace lldb_private { |
| namespace formatters { |
| class NSDictionaryISyntheticFrontEnd : public SyntheticChildrenFrontEnd |
| { |
| public: |
| NSDictionaryISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); |
| |
| ~NSDictionaryISyntheticFrontEnd() override; |
| |
| size_t |
| CalculateNumChildren() override; |
| |
| lldb::ValueObjectSP |
| GetChildAtIndex(size_t idx) override; |
| |
| bool |
| Update() override; |
| |
| bool |
| MightHaveChildren() override; |
| |
| size_t |
| GetIndexOfChildWithName(const ConstString &name) override; |
| |
| private: |
| struct DataDescriptor_32 |
| { |
| uint32_t _used : 26; |
| uint32_t _szidx : 6; |
| }; |
| |
| struct DataDescriptor_64 |
| { |
| uint64_t _used : 58; |
| uint32_t _szidx : 6; |
| }; |
| |
| struct DictionaryItemDescriptor |
| { |
| lldb::addr_t key_ptr; |
| lldb::addr_t val_ptr; |
| lldb::ValueObjectSP valobj_sp; |
| }; |
| |
| ExecutionContextRef m_exe_ctx_ref; |
| uint8_t m_ptr_size; |
| lldb::ByteOrder m_order; |
| DataDescriptor_32 *m_data_32; |
| DataDescriptor_64 *m_data_64; |
| lldb::addr_t m_data_ptr; |
| CompilerType m_pair_type; |
| std::vector<DictionaryItemDescriptor> m_children; |
| }; |
| |
| class NSDictionary1SyntheticFrontEnd : public SyntheticChildrenFrontEnd |
| { |
| public: |
| NSDictionary1SyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); |
| |
| ~NSDictionary1SyntheticFrontEnd() override = default; |
| |
| size_t |
| CalculateNumChildren() override; |
| |
| lldb::ValueObjectSP |
| GetChildAtIndex(size_t idx) override; |
| |
| bool |
| Update() override; |
| |
| bool |
| MightHaveChildren() override; |
| |
| size_t |
| GetIndexOfChildWithName(const ConstString &name) override; |
| |
| private: |
| ValueObjectSP m_pair; |
| }; |
| |
| class NSDictionaryMSyntheticFrontEnd : public SyntheticChildrenFrontEnd |
| { |
| public: |
| NSDictionaryMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp); |
| |
| ~NSDictionaryMSyntheticFrontEnd() override; |
| |
| size_t |
| CalculateNumChildren() override; |
| |
| lldb::ValueObjectSP |
| GetChildAtIndex(size_t idx) override; |
| |
| bool |
| Update() override; |
| |
| bool |
| MightHaveChildren() override; |
| |
| size_t |
| GetIndexOfChildWithName(const ConstString &name) override; |
| |
| private: |
| struct DataDescriptor_32 |
| { |
| uint32_t _used : 26; |
| uint32_t _kvo : 1; |
| uint32_t _size; |
| uint32_t _mutations; |
| uint32_t _objs_addr; |
| uint32_t _keys_addr; |
| }; |
| |
| struct DataDescriptor_64 |
| { |
| uint64_t _used : 58; |
| uint32_t _kvo : 1; |
| uint64_t _size; |
| uint64_t _mutations; |
| uint64_t _objs_addr; |
| uint64_t _keys_addr; |
| }; |
| |
| struct DictionaryItemDescriptor |
| { |
| lldb::addr_t key_ptr; |
| lldb::addr_t val_ptr; |
| lldb::ValueObjectSP valobj_sp; |
| }; |
| |
| ExecutionContextRef m_exe_ctx_ref; |
| uint8_t m_ptr_size; |
| lldb::ByteOrder m_order; |
| DataDescriptor_32 *m_data_32; |
| DataDescriptor_64 *m_data_64; |
| CompilerType m_pair_type; |
| std::vector<DictionaryItemDescriptor> m_children; |
| }; |
| } // namespace formatters |
| } // namespace lldb_private |
| |
| template<bool name_entries> |
| bool |
| lldb_private::formatters::NSDictionarySummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options) |
| { |
| static ConstString g_TypeHint("NSDictionary"); |
| ProcessSP process_sp = valobj.GetProcessSP(); |
| if (!process_sp) |
| return false; |
| |
| ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); |
| |
| if (!runtime) |
| return false; |
| |
| ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj)); |
| |
| if (!descriptor || !descriptor->IsValid()) |
| return false; |
| |
| uint32_t ptr_size = process_sp->GetAddressByteSize(); |
| bool is_64bit = (ptr_size == 8); |
| |
| lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0); |
| |
| if (!valobj_addr) |
| return false; |
| |
| uint64_t value = 0; |
| |
| ConstString class_name(descriptor->GetClassName()); |
| |
| static const ConstString g_DictionaryI("__NSDictionaryI"); |
| static const ConstString g_DictionaryM("__NSDictionaryM"); |
| static const ConstString g_Dictionary1("__NSSingleEntryDictionaryI"); |
| |
| if (class_name.IsEmpty()) |
| return false; |
| |
| if (class_name == g_DictionaryI) |
| { |
| Error error; |
| value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error); |
| if (error.Fail()) |
| return false; |
| value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U); |
| } |
| else if (class_name == g_DictionaryM) |
| { |
| Error error; |
| value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error); |
| if (error.Fail()) |
| return false; |
| value &= (is_64bit ? ~0xFC00000000000000UL : ~0xFC000000U); |
| } |
| else if (class_name == g_Dictionary1) |
| { |
| value = 1; |
| } |
| /*else if (!strcmp(class_name,"__NSCFDictionary")) |
| { |
| Error error; |
| value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + (is_64bit ? 20 : 12), 4, 0, error); |
| if (error.Fail()) |
| return false; |
| if (is_64bit) |
| value &= ~0x0f1f000000000000UL; |
| }*/ |
| else |
| { |
| auto& map(NSDictionary_Additionals::GetAdditionalSummaries()); |
| auto iter = map.find(class_name), end = map.end(); |
| if (iter != end) |
| return iter->second(valobj, stream, options); |
| else |
| return false; |
| } |
| |
| std::string prefix,suffix; |
| if (Language* language = Language::FindPlugin(options.GetLanguage())) |
| { |
| if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix)) |
| { |
| prefix.clear(); |
| suffix.clear(); |
| } |
| } |
| |
| stream.Printf("%s%" PRIu64 " %s%s%s", |
| prefix.c_str(), |
| value, |
| "key/value pair", |
| value == 1 ? "" : "s", |
| suffix.c_str()); |
| return true; |
| } |
| |
| SyntheticChildrenFrontEnd* lldb_private::formatters::NSDictionarySyntheticFrontEndCreator (CXXSyntheticChildren* synth, lldb::ValueObjectSP valobj_sp) |
| { |
| lldb::ProcessSP process_sp (valobj_sp->GetProcessSP()); |
| if (!process_sp) |
| return nullptr; |
| ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); |
| if (!runtime) |
| return nullptr; |
| |
| CompilerType valobj_type(valobj_sp->GetCompilerType()); |
| Flags flags(valobj_type.GetTypeInfo()); |
| |
| if (flags.IsClear(eTypeIsPointer)) |
| { |
| Error error; |
| valobj_sp = valobj_sp->AddressOf(error); |
| if (error.Fail() || !valobj_sp) |
| return nullptr; |
| } |
| |
| ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp)); |
| |
| if (!descriptor || !descriptor->IsValid()) |
| return nullptr; |
| |
| ConstString class_name(descriptor->GetClassName()); |
| |
| static const ConstString g_DictionaryI("__NSDictionaryI"); |
| static const ConstString g_DictionaryM("__NSDictionaryM"); |
| static const ConstString g_Dictionary1("__NSSingleEntryDictionaryI"); |
| |
| if (class_name.IsEmpty()) |
| return nullptr; |
| |
| if (class_name == g_DictionaryI) |
| { |
| return (new NSDictionaryISyntheticFrontEnd(valobj_sp)); |
| } |
| else if (class_name == g_DictionaryM) |
| { |
| return (new NSDictionaryMSyntheticFrontEnd(valobj_sp)); |
| } |
| else if (class_name == g_Dictionary1) |
| { |
| return (new NSDictionary1SyntheticFrontEnd(valobj_sp)); |
| } |
| else |
| { |
| auto& map(NSDictionary_Additionals::GetAdditionalSynthetics()); |
| auto iter = map.find(class_name), end = map.end(); |
| if (iter != end) |
| return iter->second(synth, valobj_sp); |
| } |
| |
| return nullptr; |
| } |
| |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::NSDictionaryISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp), |
| m_exe_ctx_ref(), |
| m_ptr_size(8), |
| m_order(lldb::eByteOrderInvalid), |
| m_data_32(nullptr), |
| m_data_64(nullptr), |
| m_pair_type() |
| { |
| } |
| |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::~NSDictionaryISyntheticFrontEnd () |
| { |
| delete m_data_32; |
| m_data_32 = nullptr; |
| delete m_data_64; |
| m_data_64 = nullptr; |
| } |
| |
| size_t |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| const char* item_name = name.GetCString(); |
| uint32_t idx = ExtractIndexFromString(item_name); |
| if (idx < UINT32_MAX && idx >= CalculateNumChildren()) |
| return UINT32_MAX; |
| return idx; |
| } |
| |
| size_t |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::CalculateNumChildren () |
| { |
| if (!m_data_32 && !m_data_64) |
| return 0; |
| return (m_data_32 ? m_data_32->_used : m_data_64->_used); |
| } |
| |
| bool |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::Update() |
| { |
| m_children.clear(); |
| delete m_data_32; |
| m_data_32 = nullptr; |
| delete m_data_64; |
| m_data_64 = nullptr; |
| m_ptr_size = 0; |
| ValueObjectSP valobj_sp = m_backend.GetSP(); |
| if (!valobj_sp) |
| return false; |
| m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); |
| Error error; |
| error.Clear(); |
| lldb::ProcessSP process_sp(valobj_sp->GetProcessSP()); |
| if (!process_sp) |
| return false; |
| m_ptr_size = process_sp->GetAddressByteSize(); |
| m_order = process_sp->GetByteOrder(); |
| uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size; |
| if (m_ptr_size == 4) |
| { |
| m_data_32 = new DataDescriptor_32(); |
| process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error); |
| } |
| else |
| { |
| m_data_64 = new DataDescriptor_64(); |
| process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error); |
| } |
| if (error.Fail()) |
| return false; |
| m_data_ptr = data_location + m_ptr_size; |
| return false; |
| } |
| |
| bool |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::NSDictionaryISyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| uint32_t num_children = CalculateNumChildren(); |
| |
| if (idx >= num_children) |
| return lldb::ValueObjectSP(); |
| |
| if (m_children.empty()) |
| { |
| // do the scan phase |
| lldb::addr_t key_at_idx = 0, val_at_idx = 0; |
| |
| uint32_t tries = 0; |
| uint32_t test_idx = 0; |
| |
| while(tries < num_children) |
| { |
| key_at_idx = m_data_ptr + (2*test_idx * m_ptr_size); |
| val_at_idx = key_at_idx + m_ptr_size; |
| ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP(); |
| if (!process_sp) |
| return lldb::ValueObjectSP(); |
| Error error; |
| key_at_idx = process_sp->ReadPointerFromMemory(key_at_idx, error); |
| if (error.Fail()) |
| return lldb::ValueObjectSP(); |
| val_at_idx = process_sp->ReadPointerFromMemory(val_at_idx, error); |
| if (error.Fail()) |
| return lldb::ValueObjectSP(); |
| |
| test_idx++; |
| |
| if (!key_at_idx || !val_at_idx) |
| continue; |
| tries++; |
| |
| DictionaryItemDescriptor descriptor = {key_at_idx,val_at_idx,lldb::ValueObjectSP()}; |
| |
| m_children.push_back(descriptor); |
| } |
| } |
| |
| if (idx >= m_children.size()) // should never happen |
| return lldb::ValueObjectSP(); |
| |
| DictionaryItemDescriptor &dict_item = m_children[idx]; |
| if (!dict_item.valobj_sp) |
| { |
| if (!m_pair_type.IsValid()) |
| { |
| TargetSP target_sp(m_backend.GetTargetSP()); |
| if (!target_sp) |
| return ValueObjectSP(); |
| m_pair_type = GetLLDBNSPairType(target_sp); |
| } |
| if (!m_pair_type.IsValid()) |
| return ValueObjectSP(); |
| |
| DataBufferSP buffer_sp(new DataBufferHeap(2*m_ptr_size,0)); |
| |
| if (m_ptr_size == 8) |
| { |
| uint64_t *data_ptr = (uint64_t *)buffer_sp->GetBytes(); |
| *data_ptr = dict_item.key_ptr; |
| *(data_ptr+1) = dict_item.val_ptr; |
| } |
| else |
| { |
| uint32_t *data_ptr = (uint32_t *)buffer_sp->GetBytes(); |
| *data_ptr = dict_item.key_ptr; |
| *(data_ptr+1) = dict_item.val_ptr; |
| } |
| |
| StreamString idx_name; |
| idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx); |
| DataExtractor data(buffer_sp, m_order, m_ptr_size); |
| dict_item.valobj_sp = CreateValueObjectFromData(idx_name.GetData(), |
| data, |
| m_exe_ctx_ref, |
| m_pair_type); |
| } |
| return dict_item.valobj_sp; |
| } |
| |
| lldb_private::formatters::NSDictionary1SyntheticFrontEnd::NSDictionary1SyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp.get()), |
| m_pair(nullptr) |
| { |
| } |
| |
| size_t |
| lldb_private::formatters::NSDictionary1SyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| static const ConstString g_zero("[0]"); |
| |
| if (name == g_zero) |
| return 0; |
| |
| return UINT32_MAX; |
| } |
| |
| size_t |
| lldb_private::formatters::NSDictionary1SyntheticFrontEnd::CalculateNumChildren () |
| { |
| return 1; |
| } |
| |
| bool |
| lldb_private::formatters::NSDictionary1SyntheticFrontEnd::Update() |
| { |
| m_pair.reset(); |
| return false; |
| } |
| |
| bool |
| lldb_private::formatters::NSDictionary1SyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::NSDictionary1SyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| if (idx != 0) |
| return lldb::ValueObjectSP(); |
| |
| if (m_pair.get()) |
| return m_pair; |
| |
| auto process_sp(m_backend.GetProcessSP()); |
| if (!process_sp) |
| return nullptr; |
| |
| auto ptr_size = process_sp->GetAddressByteSize(); |
| |
| lldb::addr_t key_ptr = m_backend.GetValueAsUnsigned(LLDB_INVALID_ADDRESS) + ptr_size; |
| lldb::addr_t value_ptr = key_ptr + ptr_size; |
| |
| Error error; |
| |
| lldb::addr_t value_at_idx = process_sp->ReadPointerFromMemory(key_ptr, error); |
| if (error.Fail()) |
| return nullptr; |
| lldb::addr_t key_at_idx = process_sp->ReadPointerFromMemory(value_ptr, error); |
| if (error.Fail()) |
| return nullptr; |
| |
| auto pair_type = GetLLDBNSPairType(process_sp->GetTarget().shared_from_this()); |
| |
| DataBufferSP buffer_sp(new DataBufferHeap(2*ptr_size,0)); |
| |
| if (ptr_size == 8) |
| { |
| uint64_t *data_ptr = (uint64_t *)buffer_sp->GetBytes(); |
| *data_ptr = key_at_idx; |
| *(data_ptr+1) = value_at_idx; |
| } |
| else |
| { |
| uint32_t *data_ptr = (uint32_t *)buffer_sp->GetBytes(); |
| *data_ptr = key_ptr; |
| *(data_ptr+1) = value_ptr; |
| } |
| |
| DataExtractor data(buffer_sp, process_sp->GetByteOrder(), ptr_size); |
| m_pair = CreateValueObjectFromData("[0]", |
| data, |
| m_backend.GetExecutionContextRef(), |
| pair_type); |
| |
| |
| return m_pair; |
| } |
| |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::NSDictionaryMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp), |
| m_exe_ctx_ref(), |
| m_ptr_size(8), |
| m_order(lldb::eByteOrderInvalid), |
| m_data_32(nullptr), |
| m_data_64(nullptr), |
| m_pair_type() |
| { |
| } |
| |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::~NSDictionaryMSyntheticFrontEnd () |
| { |
| delete m_data_32; |
| m_data_32 = nullptr; |
| delete m_data_64; |
| m_data_64 = nullptr; |
| } |
| |
| size_t |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| const char* item_name = name.GetCString(); |
| uint32_t idx = ExtractIndexFromString(item_name); |
| if (idx < UINT32_MAX && idx >= CalculateNumChildren()) |
| return UINT32_MAX; |
| return idx; |
| } |
| |
| size_t |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::CalculateNumChildren () |
| { |
| if (!m_data_32 && !m_data_64) |
| return 0; |
| return (m_data_32 ? m_data_32->_used : m_data_64->_used); |
| } |
| |
| bool |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::Update() |
| { |
| m_children.clear(); |
| ValueObjectSP valobj_sp = m_backend.GetSP(); |
| m_ptr_size = 0; |
| delete m_data_32; |
| m_data_32 = nullptr; |
| delete m_data_64; |
| m_data_64 = nullptr; |
| if (!valobj_sp) |
| return false; |
| m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); |
| Error error; |
| error.Clear(); |
| lldb::ProcessSP process_sp(valobj_sp->GetProcessSP()); |
| if (!process_sp) |
| return false; |
| m_ptr_size = process_sp->GetAddressByteSize(); |
| m_order = process_sp->GetByteOrder(); |
| uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size; |
| if (m_ptr_size == 4) |
| { |
| m_data_32 = new DataDescriptor_32(); |
| process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error); |
| } |
| else |
| { |
| m_data_64 = new DataDescriptor_64(); |
| process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error); |
| } |
| if (error.Fail()) |
| return false; |
| return false; |
| } |
| |
| bool |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::NSDictionaryMSyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| lldb::addr_t m_keys_ptr = (m_data_32 ? m_data_32->_keys_addr : m_data_64->_keys_addr); |
| lldb::addr_t m_values_ptr = (m_data_32 ? m_data_32->_objs_addr : m_data_64->_objs_addr); |
| |
| uint32_t num_children = CalculateNumChildren(); |
| |
| if (idx >= num_children) |
| return lldb::ValueObjectSP(); |
| |
| if (m_children.empty()) |
| { |
| // do the scan phase |
| lldb::addr_t key_at_idx = 0, val_at_idx = 0; |
| |
| uint32_t tries = 0; |
| uint32_t test_idx = 0; |
| |
| while(tries < num_children) |
| { |
| key_at_idx = m_keys_ptr + (test_idx * m_ptr_size); |
| val_at_idx = m_values_ptr + (test_idx * m_ptr_size);; |
| ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP(); |
| if (!process_sp) |
| return lldb::ValueObjectSP(); |
| Error error; |
| key_at_idx = process_sp->ReadPointerFromMemory(key_at_idx, error); |
| if (error.Fail()) |
| return lldb::ValueObjectSP(); |
| val_at_idx = process_sp->ReadPointerFromMemory(val_at_idx, error); |
| if (error.Fail()) |
| return lldb::ValueObjectSP(); |
| |
| test_idx++; |
| |
| if (!key_at_idx || !val_at_idx) |
| continue; |
| tries++; |
| |
| DictionaryItemDescriptor descriptor = {key_at_idx,val_at_idx,lldb::ValueObjectSP()}; |
| |
| m_children.push_back(descriptor); |
| } |
| } |
| |
| if (idx >= m_children.size()) // should never happen |
| return lldb::ValueObjectSP(); |
| |
| DictionaryItemDescriptor &dict_item = m_children[idx]; |
| if (!dict_item.valobj_sp) |
| { |
| if (!m_pair_type.IsValid()) |
| { |
| TargetSP target_sp(m_backend.GetTargetSP()); |
| if (!target_sp) |
| return ValueObjectSP(); |
| m_pair_type = GetLLDBNSPairType(target_sp); |
| } |
| if (!m_pair_type.IsValid()) |
| return ValueObjectSP(); |
| |
| DataBufferSP buffer_sp(new DataBufferHeap(2*m_ptr_size,0)); |
| |
| if (m_ptr_size == 8) |
| { |
| uint64_t *data_ptr = (uint64_t *)buffer_sp->GetBytes(); |
| *data_ptr = dict_item.key_ptr; |
| *(data_ptr+1) = dict_item.val_ptr; |
| } |
| else |
| { |
| uint32_t *data_ptr = (uint32_t *)buffer_sp->GetBytes(); |
| *data_ptr = dict_item.key_ptr; |
| *(data_ptr+1) = dict_item.val_ptr; |
| } |
| |
| StreamString idx_name; |
| idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx); |
| DataExtractor data(buffer_sp, m_order, m_ptr_size); |
| dict_item.valobj_sp = CreateValueObjectFromData(idx_name.GetData(), |
| data, |
| m_exe_ctx_ref, |
| m_pair_type); |
| } |
| return dict_item.valobj_sp; |
| } |
| |
| template bool |
| lldb_private::formatters::NSDictionarySummaryProvider<true> (ValueObject&, Stream&, const TypeSummaryOptions&); |
| |
| template bool |
| lldb_private::formatters::NSDictionarySummaryProvider<false> (ValueObject&, Stream&, const TypeSummaryOptions&); |
