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//===-- CoreMedia.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/DataFormatters/CXXFormatterFunctions.h"
#include "lldb/Core/Flags.h"
#include "lldb/Symbol/ClangASTContext.h"
#include <inttypes.h>
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::formatters;
bool
lldb_private::formatters::CMTimeSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
{
if (!valobj.GetClangType().IsValid())
return false;
ClangASTContext *ast_ctx = valobj.GetClangType().GetTypeSystem()->AsClangASTContext();
if (!ast_ctx)
return false;
// fetch children by offset to compensate for potential lack of debug info
auto int64_ty = ast_ctx->GetIntTypeFromBitSize(64, true);
auto int32_ty = ast_ctx->GetIntTypeFromBitSize(32, true);
auto value_sp(valobj.GetSyntheticChildAtOffset(0, int64_ty, true));
auto timescale_sp(valobj.GetSyntheticChildAtOffset(8, int32_ty, true));
auto flags_sp(valobj.GetSyntheticChildAtOffset(12, int32_ty, true));
if (!value_sp || !timescale_sp || !flags_sp)
return false;
auto value = value_sp->GetValueAsUnsigned(0);
auto timescale = (int32_t)timescale_sp->GetValueAsUnsigned(0); // the timescale specifies the fraction of a second each unit in the numerator occupies
auto flags = Flags(flags_sp->GetValueAsUnsigned(0) & 0x00000000000000FF); // the flags I need sit in the LSB
const unsigned int FlagPositiveInf = 4;
const unsigned int FlagNegativeInf = 8;
const unsigned int FlagIndefinite = 16;
if (flags.AnySet(FlagIndefinite))
{
stream.Printf("indefinite");
return true;
}
if (flags.AnySet(FlagPositiveInf))
{
stream.Printf("+oo");
return true;
}
if (flags.AnySet(FlagNegativeInf))
{
stream.Printf("-oo");
return true;
}
if (timescale == 0)
return false;
switch (timescale)
{
case 0:
return false;
case 1:
stream.Printf("%" PRId64 " seconds", value);
return true;
case 2:
stream.Printf("%" PRId64 " half seconds", value);
return true;
case 3:
stream.Printf("%" PRId64 " third%sof a second", value, value == 1 ? " " : "s ");
return true;
default:
stream.Printf("%" PRId64 " %" PRId32 "th%sof a second", value, timescale, value == 1 ? " " : "s ");
return true;
}
}
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