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This checkin implements the data formatter for NSURL in C++ code

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llvm-svn: 174735
This commit is contained in:
Enrico Granata
2013-02-08 19:28:04 +00:00
parent ba91ab65aa
commit e214a024e0
3 changed files with 95 additions and 2 deletions
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90
lldb/source/DataFormatters/CXXFormatterFunctions.cpp
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@@ -1050,6 +1050,96 @@ lldb_private::formatters::RuntimeSpecificDescriptionSummaryProvider (ValueObject
return true;
}
bool
lldb_private::formatters::NSURLSummaryProvider (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;
const char* class_name = descriptor->GetClassName().GetCString();
if (!class_name || !*class_name)
return false;
if (strcmp(class_name, "NSURL") == 0)
{
uint64_t offset_text = ptr_size + ptr_size + 8; // ISA + pointer + 8 bytes of data (even on 32bit)
uint64_t offset_base = offset_text + ptr_size;
ClangASTType type(valobj.GetClangAST(),valobj.GetClangType());
ValueObjectSP text(valobj.GetSyntheticChildAtOffset(offset_text, type, true));
ValueObjectSP base(valobj.GetSyntheticChildAtOffset(offset_base, type, true));
if (!text || !base)
return false;
if (text->GetValueAsUnsigned(0) == 0)
return false;
StreamString summary;
if (!NSStringSummaryProvider(*text, summary))
return false;
if (base->GetValueAsUnsigned(0))
{
if (summary.GetSize() > 0)
summary.GetString().resize(summary.GetSize()-1);
summary.Printf(" -- ");
StreamString base_summary;
if (NSStringSummaryProvider(*base, base_summary) && base_summary.GetSize() > 0)
summary.Printf("%s",base_summary.GetSize() > 2 ? base_summary.GetData() + 2 : base_summary.GetData());
}
if (summary.GetSize())
{
stream.Printf("%s",summary.GetData());
return true;
}
}
else
{
// similar to ExtractValueFromObjCExpression but uses summary instead of value
StreamString expr_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(NSString*)[%s description]",expr_path_stream.GetData());
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = exe_ctx.GetFramePtr();
if (!target || !stack_frame)
return false;
EvaluateExpressionOptions options;
options.SetCoerceToId(false)
.SetUnwindOnError(true)
.SetKeepInMemory(true)
.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
result_sp,
options);
if (!result_sp)
return false;
stream.Printf("%s",result_sp->GetSummaryAsCString());
return true;
}
return false;
}
bool
lldb_private::formatters::ObjCBOOLSummaryProvider (ValueObject& valobj, Stream& stream)
{