summaryrefslogtreecommitdiff
path: root/lldb/source/Plugins/Language/ObjC/NSArray.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lldb/source/Plugins/Language/ObjC/NSArray.cpp')
-rw-r--r--lldb/source/Plugins/Language/ObjC/NSArray.cpp872
1 files changed, 872 insertions, 0 deletions
diff --git a/lldb/source/Plugins/Language/ObjC/NSArray.cpp b/lldb/source/Plugins/Language/ObjC/NSArray.cpp
new file mode 100644
index 000000000000..7219c016dfd1
--- /dev/null
+++ b/lldb/source/Plugins/Language/ObjC/NSArray.cpp
@@ -0,0 +1,872 @@
+//===-- NSArray.cpp ---------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/ASTContext.h"
+
+#include "Cocoa.h"
+
+#include "Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.h"
+
+#include "lldb/Core/ValueObject.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/Expression/FunctionCaller.h"
+#include "lldb/Symbol/ClangASTContext.h"
+#include "lldb/Target/Language.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Utility/DataBufferHeap.h"
+#include "lldb/Utility/Endian.h"
+#include "lldb/Utility/Status.h"
+#include "lldb/Utility/Stream.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace lldb_private {
+namespace formatters {
+std::map<ConstString, CXXFunctionSummaryFormat::Callback> &
+NSArray_Additionals::GetAdditionalSummaries() {
+ static std::map<ConstString, CXXFunctionSummaryFormat::Callback> g_map;
+ return g_map;
+}
+
+std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback> &
+NSArray_Additionals::GetAdditionalSynthetics() {
+ static std::map<ConstString, CXXSyntheticChildren::CreateFrontEndCallback>
+ g_map;
+ return g_map;
+}
+
+class NSArrayMSyntheticFrontEndBase : public SyntheticChildrenFrontEnd {
+public:
+ NSArrayMSyntheticFrontEndBase(lldb::ValueObjectSP valobj_sp);
+
+ ~NSArrayMSyntheticFrontEndBase() override = default;
+
+ size_t CalculateNumChildren() override;
+
+ lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
+
+ bool Update() override = 0;
+
+ bool MightHaveChildren() override;
+
+ size_t GetIndexOfChildWithName(ConstString name) override;
+
+protected:
+ virtual lldb::addr_t GetDataAddress() = 0;
+
+ virtual uint64_t GetUsedCount() = 0;
+
+ virtual uint64_t GetOffset() = 0;
+
+ virtual uint64_t GetSize() = 0;
+
+ ExecutionContextRef m_exe_ctx_ref;
+ uint8_t m_ptr_size;
+ CompilerType m_id_type;
+};
+
+template <typename D32, typename D64>
+class GenericNSArrayMSyntheticFrontEnd : public NSArrayMSyntheticFrontEndBase {
+public:
+ GenericNSArrayMSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
+
+ ~GenericNSArrayMSyntheticFrontEnd() override;
+
+ bool Update() override;
+
+protected:
+ lldb::addr_t GetDataAddress() override;
+
+ uint64_t GetUsedCount() override;
+
+ uint64_t GetOffset() override;
+
+ uint64_t GetSize() override;
+
+private:
+ D32 *m_data_32;
+ D64 *m_data_64;
+};
+
+namespace Foundation109 {
+ struct DataDescriptor_32 {
+ uint32_t _used;
+ uint32_t _priv1 : 2;
+ uint32_t _size : 30;
+ uint32_t _priv2 : 2;
+ uint32_t _offset : 30;
+ uint32_t _priv3;
+ uint32_t _data;
+ };
+
+ struct DataDescriptor_64 {
+ uint64_t _used;
+ uint64_t _priv1 : 2;
+ uint64_t _size : 62;
+ uint64_t _priv2 : 2;
+ uint64_t _offset : 62;
+ uint32_t _priv3;
+ uint64_t _data;
+ };
+
+ using NSArrayMSyntheticFrontEnd =
+ GenericNSArrayMSyntheticFrontEnd<DataDescriptor_32, DataDescriptor_64>;
+}
+
+namespace Foundation1010 {
+ struct DataDescriptor_32 {
+ uint32_t _used;
+ uint32_t _offset;
+ uint32_t _size : 28;
+ uint64_t _priv1 : 4;
+ uint32_t _priv2;
+ uint32_t _data;
+ };
+
+ struct DataDescriptor_64 {
+ uint64_t _used;
+ uint64_t _offset;
+ uint64_t _size : 60;
+ uint64_t _priv1 : 4;
+ uint32_t _priv2;
+ uint64_t _data;
+ };
+
+ using NSArrayMSyntheticFrontEnd =
+ GenericNSArrayMSyntheticFrontEnd<DataDescriptor_32, DataDescriptor_64>;
+}
+
+namespace Foundation1428 {
+ struct DataDescriptor_32 {
+ uint32_t _used;
+ uint32_t _offset;
+ uint32_t _size;
+ uint32_t _data;
+ };
+
+ struct DataDescriptor_64 {
+ uint64_t _used;
+ uint64_t _offset;
+ uint64_t _size;
+ uint64_t _data;
+ };
+
+ using NSArrayMSyntheticFrontEnd =
+ GenericNSArrayMSyntheticFrontEnd<DataDescriptor_32, DataDescriptor_64>;
+}
+
+namespace Foundation1437 {
+ template <typename PtrType>
+ struct DataDescriptor {
+ PtrType _cow;
+ // __deque
+ PtrType _data;
+ uint32_t _offset;
+ uint32_t _size;
+ uint32_t _muts;
+ uint32_t _used;
+ };
+
+ using NSArrayMSyntheticFrontEnd =
+ GenericNSArrayMSyntheticFrontEnd<
+ DataDescriptor<uint32_t>, DataDescriptor<uint64_t>>;
+
+ template <typename DD>
+ uint64_t
+ __NSArrayMSize_Impl(lldb_private::Process &process,
+ lldb::addr_t valobj_addr, Status &error) {
+ const lldb::addr_t start_of_descriptor =
+ valobj_addr + process.GetAddressByteSize();
+ DD descriptor = DD();
+ process.ReadMemory(start_of_descriptor, &descriptor,
+ sizeof(descriptor), error);
+ if (error.Fail()) {
+ return 0;
+ }
+ return descriptor._used;
+ }
+
+ uint64_t
+ __NSArrayMSize(lldb_private::Process &process, lldb::addr_t valobj_addr,
+ Status &error) {
+ if (process.GetAddressByteSize() == 4) {
+ return __NSArrayMSize_Impl<DataDescriptor<uint32_t>>(process, valobj_addr,
+ error);
+ } else {
+ return __NSArrayMSize_Impl<DataDescriptor<uint64_t>>(process, valobj_addr,
+ error);
+ }
+ }
+
+}
+
+namespace CallStackArray {
+struct DataDescriptor_32 {
+ uint32_t _data;
+ uint32_t _used;
+ uint32_t _offset;
+ const uint32_t _size = 0;
+};
+
+struct DataDescriptor_64 {
+ uint64_t _data;
+ uint64_t _used;
+ uint64_t _offset;
+ const uint64_t _size = 0;
+};
+
+using NSCallStackArraySyntheticFrontEnd =
+ GenericNSArrayMSyntheticFrontEnd<DataDescriptor_32, DataDescriptor_64>;
+} // namespace CallStackArray
+
+template <typename D32, typename D64, bool Inline>
+class GenericNSArrayISyntheticFrontEnd : public SyntheticChildrenFrontEnd {
+public:
+ GenericNSArrayISyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
+
+ ~GenericNSArrayISyntheticFrontEnd() override;
+
+ size_t CalculateNumChildren() override;
+
+ lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
+
+ bool Update() override;
+
+ bool MightHaveChildren() override;
+
+ size_t GetIndexOfChildWithName(ConstString name) override;
+
+private:
+ ExecutionContextRef m_exe_ctx_ref;
+ uint8_t m_ptr_size;
+
+ D32 *m_data_32;
+ D64 *m_data_64;
+ CompilerType m_id_type;
+};
+
+namespace Foundation1300 {
+ struct IDD32 {
+ uint32_t used;
+ uint32_t list;
+ };
+
+ struct IDD64 {
+ uint64_t used;
+ uint64_t list;
+ };
+
+ using NSArrayISyntheticFrontEnd =
+ GenericNSArrayISyntheticFrontEnd<IDD32, IDD64, true>;
+}
+
+namespace Foundation1430 {
+ using NSArrayISyntheticFrontEnd =
+ Foundation1428::NSArrayMSyntheticFrontEnd;
+}
+
+namespace Foundation1436 {
+ struct IDD32 {
+ uint32_t used;
+ uint32_t list; // in Inline cases, this is the first element
+ };
+
+ struct IDD64 {
+ uint64_t used;
+ uint64_t list; // in Inline cases, this is the first element
+ };
+
+ using NSArrayI_TransferSyntheticFrontEnd =
+ GenericNSArrayISyntheticFrontEnd<IDD32, IDD64, false>;
+
+ using NSArrayISyntheticFrontEnd =
+ GenericNSArrayISyntheticFrontEnd<IDD32, IDD64, true>;
+
+ using NSFrozenArrayMSyntheticFrontEnd =
+ Foundation1437::NSArrayMSyntheticFrontEnd;
+
+ uint64_t
+ __NSFrozenArrayMSize(lldb_private::Process &process, lldb::addr_t valobj_addr,
+ Status &error) {
+ return Foundation1437::__NSArrayMSize(process, valobj_addr, error);
+ }
+}
+
+class NSArray0SyntheticFrontEnd : public SyntheticChildrenFrontEnd {
+public:
+ NSArray0SyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
+
+ ~NSArray0SyntheticFrontEnd() override = default;
+
+ size_t CalculateNumChildren() override;
+
+ lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
+
+ bool Update() override;
+
+ bool MightHaveChildren() override;
+
+ size_t GetIndexOfChildWithName(ConstString name) override;
+};
+
+class NSArray1SyntheticFrontEnd : public SyntheticChildrenFrontEnd {
+public:
+ NSArray1SyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
+
+ ~NSArray1SyntheticFrontEnd() override = default;
+
+ size_t CalculateNumChildren() override;
+
+ lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
+
+ bool Update() override;
+
+ bool MightHaveChildren() override;
+
+ size_t GetIndexOfChildWithName(ConstString name) override;
+};
+} // namespace formatters
+} // namespace lldb_private
+
+bool lldb_private::formatters::NSArraySummaryProvider(
+ ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
+ static ConstString g_TypeHint("NSArray");
+
+ ProcessSP process_sp = valobj.GetProcessSP();
+ if (!process_sp)
+ return false;
+
+ ObjCLanguageRuntime *runtime = ObjCLanguageRuntime::Get(*process_sp);
+
+ if (!runtime)
+ return false;
+
+ ObjCLanguageRuntime::ClassDescriptorSP descriptor(
+ runtime->GetClassDescriptor(valobj));
+
+ if (!descriptor || !descriptor->IsValid())
+ return false;
+
+ uint32_t ptr_size = process_sp->GetAddressByteSize();
+
+ 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_NSArrayI("__NSArrayI");
+ static const ConstString g_NSArrayM("__NSArrayM");
+ static const ConstString g_NSArrayI_Transfer("__NSArrayI_Transfer");
+ static const ConstString g_NSFrozenArrayM("__NSFrozenArrayM");
+ static const ConstString g_NSArray0("__NSArray0");
+ static const ConstString g_NSArray1("__NSSingleObjectArrayI");
+ static const ConstString g_NSArrayCF("__NSCFArray");
+ static const ConstString g_NSArrayMLegacy("__NSArrayM_Legacy");
+ static const ConstString g_NSArrayMImmutable("__NSArrayM_Immutable");
+ static const ConstString g_NSCallStackArray("_NSCallStackArray");
+
+ if (class_name.IsEmpty())
+ return false;
+
+ if (class_name == g_NSArrayI) {
+ Status error;
+ value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
+ ptr_size, 0, error);
+ if (error.Fail())
+ return false;
+ } else if (class_name == g_NSArrayM) {
+ AppleObjCRuntime *apple_runtime =
+ llvm::dyn_cast_or_null<AppleObjCRuntime>(runtime);
+ Status error;
+ if (apple_runtime && apple_runtime->GetFoundationVersion() >= 1437) {
+ value = Foundation1437::__NSArrayMSize(*process_sp, valobj_addr, error);
+ } else {
+ value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
+ ptr_size, 0, error);
+ }
+ if (error.Fail())
+ return false;
+ } else if (class_name == g_NSArrayI_Transfer) {
+ Status error;
+ value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
+ ptr_size, 0, error);
+ if (error.Fail())
+ return false;
+ } else if (class_name == g_NSFrozenArrayM) {
+ Status error;
+ value = Foundation1436::__NSFrozenArrayMSize(*process_sp, valobj_addr, error);
+ if (error.Fail())
+ return false;
+ } else if (class_name == g_NSArrayMLegacy) {
+ Status error;
+ value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
+ ptr_size, 0, error);
+ if (error.Fail())
+ return false;
+ } else if (class_name == g_NSArrayMImmutable) {
+ Status error;
+ value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size,
+ ptr_size, 0, error);
+ if (error.Fail())
+ return false;
+ } else if (class_name == g_NSArray0) {
+ value = 0;
+ } else if (class_name == g_NSArray1) {
+ value = 1;
+ } else if (class_name == g_NSArrayCF || class_name == g_NSCallStackArray) {
+ // __NSCFArray and _NSCallStackArray store the number of elements as a
+ // pointer-sized value at offset `2 * ptr_size`.
+ Status error;
+ value = process_sp->ReadUnsignedIntegerFromMemory(
+ valobj_addr + 2 * ptr_size, ptr_size, 0, error);
+ if (error.Fail())
+ return false;
+ } else {
+ auto &map(NSArray_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, "element",
+ value == 1 ? "" : "s", suffix.c_str());
+ return true;
+}
+
+lldb_private::formatters::NSArrayMSyntheticFrontEndBase::NSArrayMSyntheticFrontEndBase(
+ lldb::ValueObjectSP valobj_sp)
+ : SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(), m_ptr_size(8),
+ m_id_type() {
+ if (valobj_sp) {
+ auto *clang_ast_context = valobj_sp->GetExecutionContextRef()
+ .GetTargetSP()
+ ->GetScratchClangASTContext();
+ if (clang_ast_context)
+ m_id_type = CompilerType(
+ clang_ast_context,
+ clang_ast_context->getASTContext()->ObjCBuiltinIdTy.getAsOpaquePtr());
+ if (valobj_sp->GetProcessSP())
+ m_ptr_size = valobj_sp->GetProcessSP()->GetAddressByteSize();
+ }
+}
+
+template <typename D32, typename D64>
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::
+ GenericNSArrayMSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
+ : NSArrayMSyntheticFrontEndBase(valobj_sp), m_data_32(nullptr),
+ m_data_64(nullptr) {}
+
+size_t
+lldb_private::formatters::NSArrayMSyntheticFrontEndBase::CalculateNumChildren() {
+ return GetUsedCount();
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArrayMSyntheticFrontEndBase::GetChildAtIndex(
+ size_t idx) {
+ if (idx >= CalculateNumChildren())
+ return lldb::ValueObjectSP();
+ lldb::addr_t object_at_idx = GetDataAddress();
+ size_t pyhs_idx = idx;
+ pyhs_idx += GetOffset();
+ if (GetSize() <= pyhs_idx)
+ pyhs_idx -= GetSize();
+ object_at_idx += (pyhs_idx * m_ptr_size);
+ StreamString idx_name;
+ idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+ return CreateValueObjectFromAddress(idx_name.GetString(), object_at_idx,
+ m_exe_ctx_ref, m_id_type);
+}
+
+template <typename D32, typename D64>
+bool
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::Update() {
+ 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();
+ Status error;
+ error.Clear();
+ lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+ if (!process_sp)
+ return false;
+ m_ptr_size = process_sp->GetAddressByteSize();
+ uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+ if (m_ptr_size == 4) {
+ m_data_32 = new D32();
+ process_sp->ReadMemory(data_location, m_data_32, sizeof(D32),
+ error);
+ } else {
+ m_data_64 = new D64();
+ process_sp->ReadMemory(data_location, m_data_64, sizeof(D64),
+ error);
+ }
+ if (error.Fail())
+ return false;
+ return false;
+}
+
+bool
+lldb_private::formatters::NSArrayMSyntheticFrontEndBase::MightHaveChildren() {
+ return true;
+}
+
+size_t
+lldb_private::formatters::NSArrayMSyntheticFrontEndBase::GetIndexOfChildWithName(
+ 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;
+}
+
+template <typename D32, typename D64>
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::
+ ~GenericNSArrayMSyntheticFrontEnd() {
+ delete m_data_32;
+ m_data_32 = nullptr;
+ delete m_data_64;
+ m_data_64 = nullptr;
+}
+
+template <typename D32, typename D64>
+lldb::addr_t
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::
+ GenericNSArrayMSyntheticFrontEnd::GetDataAddress() {
+ if (!m_data_32 && !m_data_64)
+ return LLDB_INVALID_ADDRESS;
+ return m_data_32 ? m_data_32->_data : m_data_64->_data;
+}
+
+template <typename D32, typename D64>
+uint64_t
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::
+ GenericNSArrayMSyntheticFrontEnd::GetUsedCount() {
+ if (!m_data_32 && !m_data_64)
+ return 0;
+ return m_data_32 ? m_data_32->_used : m_data_64->_used;
+}
+
+template <typename D32, typename D64>
+uint64_t
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::
+ GenericNSArrayMSyntheticFrontEnd::GetOffset() {
+ if (!m_data_32 && !m_data_64)
+ return 0;
+ return m_data_32 ? m_data_32->_offset : m_data_64->_offset;
+}
+
+template <typename D32, typename D64>
+uint64_t
+lldb_private::formatters::
+ GenericNSArrayMSyntheticFrontEnd<D32, D64>::
+ GenericNSArrayMSyntheticFrontEnd::GetSize() {
+ if (!m_data_32 && !m_data_64)
+ return 0;
+ return m_data_32 ? m_data_32->_size : m_data_64->_size;
+}
+
+template <typename D32, typename D64, bool Inline>
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ GenericNSArrayISyntheticFrontEnd(
+ lldb::ValueObjectSP valobj_sp)
+ : SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(), m_ptr_size(8),
+ m_data_32(nullptr), m_data_64(nullptr) {
+ if (valobj_sp) {
+ CompilerType type = valobj_sp->GetCompilerType();
+ if (type) {
+ auto *clang_ast_context = valobj_sp->GetExecutionContextRef()
+ .GetTargetSP()
+ ->GetScratchClangASTContext();
+ if (clang_ast_context)
+ m_id_type = CompilerType(clang_ast_context,
+ clang_ast_context->getASTContext()
+ ->ObjCBuiltinIdTy.getAsOpaquePtr());
+ }
+ }
+}
+
+template <typename D32, typename D64, bool Inline>
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ ~GenericNSArrayISyntheticFrontEnd() {
+ delete m_data_32;
+ m_data_32 = nullptr;
+ delete m_data_64;
+ m_data_64 = nullptr;
+}
+
+template <typename D32, typename D64, bool Inline>
+size_t
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ GetIndexOfChildWithName(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;
+}
+
+template <typename D32, typename D64, bool Inline>
+size_t
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ CalculateNumChildren() {
+ return m_data_32 ? m_data_32->used : m_data_64->used;
+}
+
+template <typename D32, typename D64, bool Inline>
+bool
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ Update() {
+ 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();
+ Status error;
+ error.Clear();
+ lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+ if (!process_sp)
+ return false;
+ m_ptr_size = process_sp->GetAddressByteSize();
+ uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
+ if (m_ptr_size == 4) {
+ m_data_32 = new D32();
+ process_sp->ReadMemory(data_location, m_data_32, sizeof(D32),
+ error);
+ } else {
+ m_data_64 = new D64();
+ process_sp->ReadMemory(data_location, m_data_64, sizeof(D64),
+ error);
+ }
+ if (error.Fail())
+ return false;
+ return false;
+}
+
+template <typename D32, typename D64, bool Inline>
+bool
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ MightHaveChildren() {
+ return true;
+}
+
+template <typename D32, typename D64, bool Inline>
+lldb::ValueObjectSP
+lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
+ GetChildAtIndex(size_t idx) {
+ if (idx >= CalculateNumChildren())
+ return lldb::ValueObjectSP();
+ lldb::addr_t object_at_idx;
+ if (Inline) {
+ object_at_idx = m_backend.GetSP()->GetValueAsUnsigned(0) + m_ptr_size;
+ object_at_idx += m_ptr_size == 4 ? sizeof(D32) : sizeof(D64); // skip the data header
+ object_at_idx -= m_ptr_size; // we treat the last entry in the data header as the first pointer
+ } else {
+ object_at_idx = m_data_32 ? m_data_32->list : m_data_64->list;
+ }
+ object_at_idx += (idx * m_ptr_size);
+
+ ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
+ if (!process_sp)
+ return lldb::ValueObjectSP();
+ Status error;
+ if (error.Fail())
+ return lldb::ValueObjectSP();
+ StreamString idx_name;
+ idx_name.Printf("[%" PRIu64 "]", (uint64_t)idx);
+ return CreateValueObjectFromAddress(idx_name.GetString(), object_at_idx,
+ m_exe_ctx_ref, m_id_type);
+}
+
+lldb_private::formatters::NSArray0SyntheticFrontEnd::NSArray0SyntheticFrontEnd(
+ lldb::ValueObjectSP valobj_sp)
+ : SyntheticChildrenFrontEnd(*valobj_sp) {}
+
+size_t
+lldb_private::formatters::NSArray0SyntheticFrontEnd::GetIndexOfChildWithName(
+ ConstString name) {
+ return UINT32_MAX;
+}
+
+size_t
+lldb_private::formatters::NSArray0SyntheticFrontEnd::CalculateNumChildren() {
+ return 0;
+}
+
+bool lldb_private::formatters::NSArray0SyntheticFrontEnd::Update() {
+ return false;
+}
+
+bool lldb_private::formatters::NSArray0SyntheticFrontEnd::MightHaveChildren() {
+ return false;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArray0SyntheticFrontEnd::GetChildAtIndex(
+ size_t idx) {
+ return lldb::ValueObjectSP();
+}
+
+lldb_private::formatters::NSArray1SyntheticFrontEnd::NSArray1SyntheticFrontEnd(
+ lldb::ValueObjectSP valobj_sp)
+ : SyntheticChildrenFrontEnd(*valobj_sp.get()) {}
+
+size_t
+lldb_private::formatters::NSArray1SyntheticFrontEnd::GetIndexOfChildWithName(
+ ConstString name) {
+ static const ConstString g_zero("[0]");
+
+ if (name == g_zero)
+ return 0;
+
+ return UINT32_MAX;
+}
+
+size_t
+lldb_private::formatters::NSArray1SyntheticFrontEnd::CalculateNumChildren() {
+ return 1;
+}
+
+bool lldb_private::formatters::NSArray1SyntheticFrontEnd::Update() {
+ return false;
+}
+
+bool lldb_private::formatters::NSArray1SyntheticFrontEnd::MightHaveChildren() {
+ return true;
+}
+
+lldb::ValueObjectSP
+lldb_private::formatters::NSArray1SyntheticFrontEnd::GetChildAtIndex(
+ size_t idx) {
+ static const ConstString g_zero("[0]");
+
+ if (idx == 0) {
+ CompilerType id_type(
+ m_backend.GetTargetSP()->GetScratchClangASTContext()->GetBasicType(
+ lldb::eBasicTypeObjCID));
+ return m_backend.GetSyntheticChildAtOffset(
+ m_backend.GetProcessSP()->GetAddressByteSize(), id_type, true, g_zero);
+ }
+ return lldb::ValueObjectSP();
+}
+
+SyntheticChildrenFrontEnd *
+lldb_private::formatters::NSArraySyntheticFrontEndCreator(
+ CXXSyntheticChildren *synth, lldb::ValueObjectSP valobj_sp) {
+ if (!valobj_sp)
+ return nullptr;
+
+ lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+ if (!process_sp)
+ return nullptr;
+ AppleObjCRuntime *runtime = llvm::dyn_cast_or_null<AppleObjCRuntime>(
+ ObjCLanguageRuntime::Get(*process_sp));
+ if (!runtime)
+ return nullptr;
+
+ CompilerType valobj_type(valobj_sp->GetCompilerType());
+ Flags flags(valobj_type.GetTypeInfo());
+
+ if (flags.IsClear(eTypeIsPointer)) {
+ Status 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_NSArrayI("__NSArrayI");
+ static const ConstString g_NSArrayI_Transfer("__NSArrayI_Transfer");
+ static const ConstString g_NSFrozenArrayM("__NSFrozenArrayM");
+ static const ConstString g_NSArrayM("__NSArrayM");
+ static const ConstString g_NSArray0("__NSArray0");
+ static const ConstString g_NSArray1("__NSSingleObjectArrayI");
+ static const ConstString g_NSArrayMLegacy("__NSArrayM_Legacy");
+ static const ConstString g_NSArrayMImmutable("__NSArrayM_Immutable");
+ static const ConstString g_NSCallStackArray("_NSCallStackArray");
+
+ if (class_name.IsEmpty())
+ return nullptr;
+
+ if (class_name == g_NSArrayI) {
+ if (runtime->GetFoundationVersion() >= 1436)
+ return (new Foundation1436::NSArrayISyntheticFrontEnd(valobj_sp));
+ if (runtime->GetFoundationVersion() >= 1430)
+ return (new Foundation1430::NSArrayISyntheticFrontEnd(valobj_sp));
+ else
+ return (new Foundation1300::NSArrayISyntheticFrontEnd(valobj_sp));
+ } else if (class_name == g_NSArrayI_Transfer) {
+ return (new Foundation1436::NSArrayI_TransferSyntheticFrontEnd(valobj_sp));
+ } else if (class_name == g_NSArray0) {
+ } else if (class_name == g_NSFrozenArrayM) {
+ return (new Foundation1436::NSFrozenArrayMSyntheticFrontEnd(valobj_sp));
+ } else if (class_name == g_NSArray0) {
+ return (new NSArray0SyntheticFrontEnd(valobj_sp));
+ } else if (class_name == g_NSArray1) {
+ return (new NSArray1SyntheticFrontEnd(valobj_sp));
+ } else if (class_name == g_NSArrayM) {
+ if (runtime->GetFoundationVersion() >= 1437)
+ return (new Foundation1437::NSArrayMSyntheticFrontEnd(valobj_sp));
+ if (runtime->GetFoundationVersion() >= 1428)
+ return (new Foundation1428::NSArrayMSyntheticFrontEnd(valobj_sp));
+ if (runtime->GetFoundationVersion() >= 1100)
+ return (new Foundation1010::NSArrayMSyntheticFrontEnd(valobj_sp));
+ else
+ return (new Foundation109::NSArrayMSyntheticFrontEnd(valobj_sp));
+ } else if (class_name == g_NSCallStackArray) {
+ return (new CallStackArray::NSCallStackArraySyntheticFrontEnd(valobj_sp));
+ } else {
+ auto &map(NSArray_Additionals::GetAdditionalSynthetics());
+ auto iter = map.find(class_name), end = map.end();
+ if (iter != end)
+ return iter->second(synth, valobj_sp);
+ }
+
+ return nullptr;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 11:31:36 +0000