diff options
Diffstat (limited to 'source/DataFormatters/NSArray.cpp')
| -rw-r--r-- | source/DataFormatters/NSArray.cpp | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/source/DataFormatters/NSArray.cpp b/source/DataFormatters/NSArray.cpp new file mode 100644 index 000000000000..d8ee9bfa8a47 --- /dev/null +++ b/source/DataFormatters/NSArray.cpp @@ -0,0 +1,371 @@ +//===-- 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 () +{} |