| //===-- NSArray.cpp ---------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/lldb-python.h" |
| |
| #include "lldb/DataFormatters/CXXFormatterFunctions.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/Host/Endian.h" |
| #include "lldb/Symbol/ClangASTContext.h" |
| #include "lldb/Target/ObjCLanguageRuntime.h" |
| #include "lldb/Target/Target.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace lldb_private::formatters; |
| |
| bool |
| lldb_private::formatters::NSArraySummaryProvider (ValueObject& valobj, Stream& stream) |
| { |
| 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.get() || !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; |
| |
| const char* class_name = descriptor->GetClassName().GetCString(); |
| |
| if (!class_name || !*class_name) |
| return false; |
| |
| if (!strcmp(class_name,"__NSArrayI")) |
| { |
| Error error; |
| value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error); |
| if (error.Fail()) |
| return false; |
| } |
| else if (!strcmp(class_name,"__NSArrayM")) |
| { |
| Error error; |
| value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error); |
| if (error.Fail()) |
| return false; |
| } |
| else if (!strcmp(class_name,"__NSCFArray")) |
| { |
| Error error; |
| value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + 2 * ptr_size, ptr_size, 0, error); |
| if (error.Fail()) |
| return false; |
| } |
| else |
| { |
| if (!ExtractValueFromObjCExpression(valobj, "int", "count", value)) |
| return false; |
| } |
| |
| stream.Printf("@\"%" PRIu64 " object%s\"", |
| value, |
| value == 1 ? "" : "s"); |
| return true; |
| } |
| |
| lldb_private::formatters::NSArrayMSyntheticFrontEnd::NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp.get()), |
| m_exe_ctx_ref(), |
| m_ptr_size(8), |
| m_data_32(NULL), |
| m_data_64(NULL) |
| { |
| if (valobj_sp) |
| { |
| clang::ASTContext *ast = valobj_sp->GetClangType().GetASTContext(); |
| if (ast) |
| m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy); |
| } |
| } |
| |
| size_t |
| lldb_private::formatters::NSArrayMSyntheticFrontEnd::CalculateNumChildren () |
| { |
| if (m_data_32) |
| return m_data_32->_used; |
| if (m_data_64) |
| return m_data_64->_used; |
| return 0; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| if (!m_data_32 && !m_data_64) |
| return lldb::ValueObjectSP(); |
| if (idx >= CalculateNumChildren()) |
| return lldb::ValueObjectSP(); |
| lldb::addr_t object_at_idx = (m_data_32 ? m_data_32->_data : m_data_64->_data); |
| size_t pyhs_idx = idx; |
| pyhs_idx += (m_data_32 ? m_data_32->offset : m_data_64->offset); |
| if ((m_data_32 ? m_data_32->_size : m_data_64->_size) <= pyhs_idx) |
| pyhs_idx -= (m_data_32 ? m_data_32->_size : m_data_64->_size); |
| object_at_idx += (pyhs_idx * m_ptr_size); |
| StreamString idx_name; |
| idx_name.Printf("[%zu]",idx); |
| lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromAddress(idx_name.GetData(), |
| object_at_idx, |
| m_exe_ctx_ref, |
| m_id_type); |
| m_children.push_back(retval_sp); |
| return retval_sp; |
| } |
| |
| bool |
| lldb_private::formatters::NSArrayMSyntheticFrontEnd::Update() |
| { |
| m_children.clear(); |
| ValueObjectSP valobj_sp = m_backend.GetSP(); |
| m_ptr_size = 0; |
| delete m_data_32; |
| m_data_32 = NULL; |
| delete m_data_64; |
| m_data_64 = NULL; |
| 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(); |
| 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::NSArrayMSyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| size_t |
| lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| if (!m_data_32 && !m_data_64) |
| return UINT32_MAX; |
| const char* item_name = name.GetCString(); |
| uint32_t idx = ExtractIndexFromString(item_name); |
| if (idx < UINT32_MAX && idx >= CalculateNumChildren()) |
| return UINT32_MAX; |
| return idx; |
| } |
| |
| lldb_private::formatters::NSArrayMSyntheticFrontEnd::~NSArrayMSyntheticFrontEnd () |
| { |
| delete m_data_32; |
| m_data_32 = NULL; |
| delete m_data_64; |
| m_data_64 = NULL; |
| } |
| |
| lldb_private::formatters::NSArrayISyntheticFrontEnd::NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd (*valobj_sp.get()), |
| m_exe_ctx_ref (), |
| m_ptr_size (8), |
| m_items (0), |
| m_data_ptr (0) |
| { |
| if (valobj_sp) |
| { |
| clang::ASTContext *ast = valobj_sp->GetClangType().GetASTContext(); |
| if (ast) |
| m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy); |
| } |
| } |
| |
| lldb_private::formatters::NSArrayISyntheticFrontEnd::~NSArrayISyntheticFrontEnd () |
| { |
| } |
| |
| size_t |
| lldb_private::formatters::NSArrayISyntheticFrontEnd::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::NSArrayISyntheticFrontEnd::CalculateNumChildren () |
| { |
| return m_items; |
| } |
| |
| bool |
| lldb_private::formatters::NSArrayISyntheticFrontEnd::Update() |
| { |
| m_ptr_size = 0; |
| m_items = 0; |
| m_data_ptr = 0; |
| m_children.clear(); |
| 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(); |
| uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size; |
| m_items = process_sp->ReadPointerFromMemory(data_location, error); |
| if (error.Fail()) |
| return false; |
| m_data_ptr = data_location+m_ptr_size; |
| return false; |
| } |
| |
| bool |
| lldb_private::formatters::NSArrayISyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| if (idx >= CalculateNumChildren()) |
| return lldb::ValueObjectSP(); |
| lldb::addr_t object_at_idx = m_data_ptr; |
| object_at_idx += (idx * m_ptr_size); |
| ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP(); |
| if (!process_sp) |
| return lldb::ValueObjectSP(); |
| Error error; |
| if (error.Fail()) |
| return lldb::ValueObjectSP(); |
| StreamString idx_name; |
| idx_name.Printf("[%zu]",idx); |
| lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromAddress(idx_name.GetData(), object_at_idx, m_exe_ctx_ref, m_id_type); |
| m_children.push_back(retval_sp); |
| return retval_sp; |
| } |
| |
| SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) |
| { |
| lldb::ProcessSP process_sp (valobj_sp->GetProcessSP()); |
| if (!process_sp) |
| return NULL; |
| ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC); |
| if (!runtime) |
| return NULL; |
| |
| if (!valobj_sp->IsPointerType()) |
| { |
| Error error; |
| valobj_sp = valobj_sp->AddressOf(error); |
| if (error.Fail() || !valobj_sp) |
| return NULL; |
| } |
| |
| ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get())); |
| |
| if (!descriptor.get() || !descriptor->IsValid()) |
| return NULL; |
| |
| const char* class_name = descriptor->GetClassName().GetCString(); |
| |
| if (!class_name || !*class_name) |
| return NULL; |
| |
| if (!strcmp(class_name,"__NSArrayI")) |
| { |
| return (new NSArrayISyntheticFrontEnd(valobj_sp)); |
| } |
| else if (!strcmp(class_name,"__NSArrayM")) |
| { |
| return (new NSArrayMSyntheticFrontEnd(valobj_sp)); |
| } |
| else |
| { |
| return (new NSArrayCodeRunningSyntheticFrontEnd(valobj_sp)); |
| } |
| } |
| |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp.get()) |
| {} |
| |
| size_t |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::CalculateNumChildren () |
| { |
| uint64_t count = 0; |
| if (ExtractValueFromObjCExpression(m_backend, "int", "count", count)) |
| return count; |
| return 0; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| StreamString idx_name; |
| idx_name.Printf("[%zu]",idx); |
| lldb::ValueObjectSP valobj_sp = CallSelectorOnObject(m_backend,"id","objectAtIndex:",idx); |
| if (valobj_sp) |
| valobj_sp->SetName(ConstString(idx_name.GetData())); |
| return valobj_sp; |
| } |
| |
| bool |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::Update() |
| { |
| return false; |
| } |
| |
| bool |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| size_t |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| return 0; |
| } |
| |
| lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::~NSArrayCodeRunningSyntheticFrontEnd () |
| {} |