// Copyright 2016 Google Inc. All Rights Reserved.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#include "util.h"

using absl::string_view;

namespace bloaty {

ABSL_ATTRIBUTE_NORETURN

void Throw(const char *str, int line) {

  throw bloaty::Error(str, __FILE__, line);

}

absl::string_view ReadNullTerminated(absl::string_view* data) {

  const char* nullz =

      static_cast<const char*>(memchr(data->data(), '\0', data->size()));

  // Return false if not NULL-terminated.

  if (nullz == NULL) {

    THROW("DWARF string was not NULL-terminated");

  }

  size_t len = nullz - data->data();

  absl::string_view val = data->substr(0, len);

  data->remove_prefix(len + 1);  // Remove NULL also.

  return val;

}

}  // namespace bloaty