1 //===-- NSArray.cpp ---------------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/lldb-python.h"
12 #include "lldb/DataFormatters/CXXFormatterFunctions.h"
14 #include "lldb/Core/DataBufferHeap.h"
15 #include "lldb/Core/Error.h"
16 #include "lldb/Core/Stream.h"
17 #include "lldb/Core/ValueObject.h"
18 #include "lldb/Core/ValueObjectConstResult.h"
19 #include "lldb/Host/Endian.h"
20 #include "lldb/Symbol/ClangASTContext.h"
21 #include "lldb/Target/ObjCLanguageRuntime.h"
22 #include "lldb/Target/Target.h"
25 using namespace lldb_private;
26 using namespace lldb_private::formatters;
29 lldb_private::formatters::NSArraySummaryProvider (ValueObject& valobj, Stream& stream)
31 ProcessSP process_sp = valobj.GetProcessSP();
35 ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
40 ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
42 if (!descriptor.get() || !descriptor->IsValid())
45 uint32_t ptr_size = process_sp->GetAddressByteSize();
47 lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
54 const char* class_name = descriptor->GetClassName().GetCString();
56 if (!class_name || !*class_name)
59 if (!strcmp(class_name,"__NSArrayI"))
62 value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
66 else if (!strcmp(class_name,"__NSArrayM"))
69 value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + ptr_size, ptr_size, 0, error);
73 else if (!strcmp(class_name,"__NSCFArray"))
76 value = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr + 2 * ptr_size, ptr_size, 0, error);
82 if (!ExtractValueFromObjCExpression(valobj, "int", "count", value))
86 stream.Printf("@\"%" PRIu64 " object%s\"",
88 value == 1 ? "" : "s");
92 lldb_private::formatters::NSArrayMSyntheticFrontEnd::NSArrayMSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
93 SyntheticChildrenFrontEnd(*valobj_sp.get()),
101 clang::ASTContext *ast = valobj_sp->GetClangType().GetASTContext();
103 m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy);
108 lldb_private::formatters::NSArrayMSyntheticFrontEnd::CalculateNumChildren ()
111 return m_data_32->_used;
113 return m_data_64->_used;
118 lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetChildAtIndex (size_t idx)
120 if (!m_data_32 && !m_data_64)
121 return lldb::ValueObjectSP();
122 if (idx >= CalculateNumChildren())
123 return lldb::ValueObjectSP();
124 lldb::addr_t object_at_idx = (m_data_32 ? m_data_32->_data : m_data_64->_data);
125 size_t pyhs_idx = idx;
126 pyhs_idx += (m_data_32 ? m_data_32->offset : m_data_64->offset);
127 if ((m_data_32 ? m_data_32->_size : m_data_64->_size) <= pyhs_idx)
128 pyhs_idx -= (m_data_32 ? m_data_32->_size : m_data_64->_size);
129 object_at_idx += (pyhs_idx * m_ptr_size);
130 StreamString idx_name;
131 idx_name.Printf("[%zu]",idx);
132 lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromAddress(idx_name.GetData(),
136 m_children.push_back(retval_sp);
141 lldb_private::formatters::NSArrayMSyntheticFrontEnd::Update()
144 ValueObjectSP valobj_sp = m_backend.GetSP();
152 m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
155 lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
158 m_ptr_size = process_sp->GetAddressByteSize();
159 uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
162 m_data_32 = new DataDescriptor_32();
163 process_sp->ReadMemory (data_location, m_data_32, sizeof(DataDescriptor_32), error);
167 m_data_64 = new DataDescriptor_64();
168 process_sp->ReadMemory (data_location, m_data_64, sizeof(DataDescriptor_64), error);
176 lldb_private::formatters::NSArrayMSyntheticFrontEnd::MightHaveChildren ()
182 lldb_private::formatters::NSArrayMSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
184 if (!m_data_32 && !m_data_64)
186 const char* item_name = name.GetCString();
187 uint32_t idx = ExtractIndexFromString(item_name);
188 if (idx < UINT32_MAX && idx >= CalculateNumChildren())
193 lldb_private::formatters::NSArrayMSyntheticFrontEnd::~NSArrayMSyntheticFrontEnd ()
201 lldb_private::formatters::NSArrayISyntheticFrontEnd::NSArrayISyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
202 SyntheticChildrenFrontEnd (*valobj_sp.get()),
210 clang::ASTContext *ast = valobj_sp->GetClangType().GetASTContext();
212 m_id_type = ClangASTType(ast, ast->ObjCBuiltinIdTy);
216 lldb_private::formatters::NSArrayISyntheticFrontEnd::~NSArrayISyntheticFrontEnd ()
221 lldb_private::formatters::NSArrayISyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
223 const char* item_name = name.GetCString();
224 uint32_t idx = ExtractIndexFromString(item_name);
225 if (idx < UINT32_MAX && idx >= CalculateNumChildren())
231 lldb_private::formatters::NSArrayISyntheticFrontEnd::CalculateNumChildren ()
237 lldb_private::formatters::NSArrayISyntheticFrontEnd::Update()
243 ValueObjectSP valobj_sp = m_backend.GetSP();
246 m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
249 lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
252 m_ptr_size = process_sp->GetAddressByteSize();
253 uint64_t data_location = valobj_sp->GetValueAsUnsigned(0) + m_ptr_size;
254 m_items = process_sp->ReadPointerFromMemory(data_location, error);
257 m_data_ptr = data_location+m_ptr_size;
262 lldb_private::formatters::NSArrayISyntheticFrontEnd::MightHaveChildren ()
268 lldb_private::formatters::NSArrayISyntheticFrontEnd::GetChildAtIndex (size_t idx)
270 if (idx >= CalculateNumChildren())
271 return lldb::ValueObjectSP();
272 lldb::addr_t object_at_idx = m_data_ptr;
273 object_at_idx += (idx * m_ptr_size);
274 ProcessSP process_sp = m_exe_ctx_ref.GetProcessSP();
276 return lldb::ValueObjectSP();
279 return lldb::ValueObjectSP();
280 StreamString idx_name;
281 idx_name.Printf("[%zu]",idx);
282 lldb::ValueObjectSP retval_sp = ValueObject::CreateValueObjectFromAddress(idx_name.GetData(), object_at_idx, m_exe_ctx_ref, m_id_type);
283 m_children.push_back(retval_sp);
287 SyntheticChildrenFrontEnd* lldb_private::formatters::NSArraySyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
289 lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
292 ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
296 if (!valobj_sp->IsPointerType())
299 valobj_sp = valobj_sp->AddressOf(error);
300 if (error.Fail() || !valobj_sp)
304 ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
306 if (!descriptor.get() || !descriptor->IsValid())
309 const char* class_name = descriptor->GetClassName().GetCString();
311 if (!class_name || !*class_name)
314 if (!strcmp(class_name,"__NSArrayI"))
316 return (new NSArrayISyntheticFrontEnd(valobj_sp));
318 else if (!strcmp(class_name,"__NSArrayM"))
320 return (new NSArrayMSyntheticFrontEnd(valobj_sp));
324 return (new NSArrayCodeRunningSyntheticFrontEnd(valobj_sp));
328 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::NSArrayCodeRunningSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
329 SyntheticChildrenFrontEnd(*valobj_sp.get())
333 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::CalculateNumChildren ()
336 if (ExtractValueFromObjCExpression(m_backend, "int", "count", count))
342 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetChildAtIndex (size_t idx)
344 StreamString idx_name;
345 idx_name.Printf("[%zu]",idx);
346 lldb::ValueObjectSP valobj_sp = CallSelectorOnObject(m_backend,"id","objectAtIndex:",idx);
348 valobj_sp->SetName(ConstString(idx_name.GetData()));
353 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::Update()
359 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::MightHaveChildren ()
365 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
370 lldb_private::formatters::NSArrayCodeRunningSyntheticFrontEnd::~NSArrayCodeRunningSyntheticFrontEnd ()