Ejemplo n.º 1
0
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;
}
Ejemplo n.º 2
0
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;
}
Ejemplo n.º 3
0
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;
}
Ejemplo n.º 4
0
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;
}
Ejemplo n.º 5
0
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;
}