static bool
SwiftOptional_SummaryProvider_Impl (ValueObject& valobj,
Stream& stream,
const TypeSummaryOptions& options)
{
static ConstString g_Some("Some");
static ConstString g_None("None");
ValueObjectSP non_synth_valobj = valobj.GetNonSyntheticValue();
if (!non_synth_valobj)
return false;
ConstString value(non_synth_valobj->GetValueAsCString());
if (!value)
return false;
if (value == g_None)
{
stream.Printf("nil");
return true;
}
ValueObjectSP value_sp(non_synth_valobj->GetChildMemberWithName(g_Some, true));
if (!value_sp)
return false;
value_sp = value_sp->GetQualifiedRepresentationIfAvailable(lldb::eDynamicDontRunTarget, true);
if (!value_sp)
return false;
const char* value_summary = value_sp->GetSummaryAsCString();
if (value_summary)
stream.Printf("%s",value_summary);
else if (lldb_private::DataVisualization::ShouldPrintAsOneLiner(*value_sp.get()))
{
TypeSummaryImpl::Flags oneliner_flags;
oneliner_flags.SetHideItemNames(false).SetCascades(true).SetDontShowChildren(false).SetDontShowValue(false).SetShowMembersOneLiner(true).SetSkipPointers(false).SetSkipReferences(false);
StringSummaryFormat oneliner(oneliner_flags, "");
std::string buffer;
oneliner.FormatObject(value_sp.get(), buffer, options);
stream.Printf("%s",buffer.c_str());
}
return true;
}
bool lldb_private::formatters::LibcxxFunctionSummaryProvider(
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue());
if (!valobj_sp)
return false;
ExecutionContext exe_ctx(valobj_sp->GetExecutionContextRef());
Process *process = exe_ctx.GetProcessPtr();
if (process == nullptr)
return false;
CPPLanguageRuntime *cpp_runtime = process->GetCPPLanguageRuntime();
if (!cpp_runtime)
return false;
CPPLanguageRuntime::LibCppStdFunctionCallableInfo callable_info =
cpp_runtime->FindLibCppStdFunctionCallableInfo(valobj_sp);
switch (callable_info.callable_case) {
case CPPLanguageRuntime::LibCppStdFunctionCallableCase::Invalid:
stream.Printf(" __f_ = %" PRIu64, callable_info.member__f_pointer_value);
return false;
break;
case CPPLanguageRuntime::LibCppStdFunctionCallableCase::Lambda:
stream.Printf(
" Lambda in File %s at Line %u",
callable_info.callable_line_entry.file.GetFilename().GetCString(),
callable_info.callable_line_entry.line);
break;
case CPPLanguageRuntime::LibCppStdFunctionCallableCase::CallableObject:
stream.Printf(
" Function in File %s at Line %u",
callable_info.callable_line_entry.file.GetFilename().GetCString(),
callable_info.callable_line_entry.line);
break;
case CPPLanguageRuntime::LibCppStdFunctionCallableCase::FreeOrMemberFunction:
stream.Printf(" Function = %s ",
callable_info.callable_symbol.GetName().GetCString());
break;
}
return true;
}
bool lldb_private::formatters::LibcxxSmartPointerSummaryProvider(
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue());
if (!valobj_sp)
return false;
ValueObjectSP ptr_sp(
valobj_sp->GetChildMemberWithName(ConstString("__ptr_"), true));
ValueObjectSP count_sp(valobj_sp->GetChildAtNamePath(
{ConstString("__cntrl_"), ConstString("__shared_owners_")}));
ValueObjectSP weakcount_sp(valobj_sp->GetChildAtNamePath(
{ConstString("__cntrl_"), ConstString("__shared_weak_owners_")}));
if (!ptr_sp)
return false;
if (ptr_sp->GetValueAsUnsigned(0) == 0) {
stream.Printf("nullptr");
return true;
} else {
bool print_pointee = false;
Status error;
ValueObjectSP pointee_sp = ptr_sp->Dereference(error);
if (pointee_sp && error.Success()) {
if (pointee_sp->DumpPrintableRepresentation(
stream, ValueObject::eValueObjectRepresentationStyleSummary,
lldb::eFormatInvalid,
ValueObject::PrintableRepresentationSpecialCases::eDisable,
false))
print_pointee = true;
}
if (!print_pointee)
stream.Printf("ptr = 0x%" PRIx64, ptr_sp->GetValueAsUnsigned(0));
}
if (count_sp)
stream.Printf(" strong=%" PRIu64, 1 + count_sp->GetValueAsUnsigned(0));
if (weakcount_sp)
stream.Printf(" weak=%" PRIu64, 1 + weakcount_sp->GetValueAsUnsigned(0));
return true;
}
bool lldb_private::formatters::LibcxxOptionalSummaryProvider(
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue());
if (!valobj_sp)
return false;
// An optional either contains a value or not, the member __engaged_ is
// a bool flag, it is true if the optional has a value and false otherwise.
ValueObjectSP engaged_sp(
valobj_sp->GetChildMemberWithName(ConstString("__engaged_"), true));
if (!engaged_sp)
return false;
llvm::StringRef engaged_as_cstring(
engaged_sp->GetValueAsUnsigned(0) == 1 ? "true" : "false");
stream.Printf(" Has Value=%s ", engaged_as_cstring.data());
return true;
}
bool lldb_private::formatters::LibStdcppSmartPointerSummaryProvider(
ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
ValueObjectSP valobj_sp(valobj.GetNonSyntheticValue());
if (!valobj_sp)
return false;
ValueObjectSP ptr_sp(
valobj_sp->GetChildMemberWithName(ConstString("_M_ptr"), true));
if (!ptr_sp)
return false;
ValueObjectSP usecount_sp(valobj_sp->GetChildAtNamePath(
{ConstString("_M_refcount"), ConstString("_M_pi"),
ConstString("_M_use_count")}));
if (!usecount_sp)
return false;
if (ptr_sp->GetValueAsUnsigned(0) == 0 ||
usecount_sp->GetValueAsUnsigned(0) == 0) {
stream.Printf("nullptr");
return true;
}
Error error;
ValueObjectSP pointee_sp = ptr_sp->Dereference(error);
if (pointee_sp && error.Success()) {
if (pointee_sp->DumpPrintableRepresentation(
stream, ValueObject::eValueObjectRepresentationStyleSummary,
lldb::eFormatInvalid,
ValueObject::PrintableRepresentationSpecialCases::eDisable,
false)) {
return true;
}
}
stream.Printf("ptr = 0x%" PRIx64, ptr_sp->GetValueAsUnsigned(0));
return true;
}
