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//===- RemarkFormat.cpp --------------------------------------------------===// 
// 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
// See https://llvm.org/LICENSE.txt for license information. 
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
// 
//===----------------------------------------------------------------------===// 
// 
// Implementation of utilities to handle the different remark formats. 
// 
//===----------------------------------------------------------------------===// 
 
#include "llvm/Remarks/RemarkFormat.h" 
#include "llvm/ADT/StringSwitch.h" 
#include "llvm/Remarks/BitstreamRemarkContainer.h" 
 
using namespace llvm; 
using namespace llvm::remarks; 
 
Expected<Format> llvm::remarks::parseFormat(StringRef FormatStr) { 
  auto Result = StringSwitch<Format>(FormatStr) 
                    .Cases("", "yaml", Format::YAML) 
                    .Case("yaml-strtab", Format::YAMLStrTab) 
                    .Case("bitstream", Format::Bitstream) 
                    .Default(Format::Unknown); 
 
  if (Result == Format::Unknown) 
    return createStringError(std::make_error_code(std::errc::invalid_argument), 
                             "Unknown remark format: '%s'", 
                             FormatStr.data()); 
 
  return Result; 
} 
 
Expected<Format> llvm::remarks::magicToFormat(StringRef MagicStr) { 
  auto Result = 
      StringSwitch<Format>(MagicStr) 
          .StartsWith("--- ", Format::YAML) // This is only an assumption. 
          .StartsWith(remarks::Magic, Format::YAMLStrTab) 
          .StartsWith(remarks::ContainerMagic, Format::Bitstream) 
          .Default(Format::Unknown); 
 
  if (Result == Format::Unknown) 
    return createStringError(std::make_error_code(std::errc::invalid_argument), 
                             "Unknown remark magic: '%s'", MagicStr.data()); 
  return Result; 
}