src/cobalt/script/exception_state.h

// Copyright 2015 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.
#ifndef COBALT_SCRIPT_EXCEPTION_STATE_H_
#define COBALT_SCRIPT_EXCEPTION_STATE_H_

#include <string>

#include "cobalt/script/exception_message.h"
#include "cobalt/script/script_exception.h"

namespace cobalt {
namespace script {

class ExceptionState {
 public:
  // IDL for this object must be an exception interface.
  virtual void SetException(
      const scoped_refptr<ScriptException>& exception) = 0;

  // The 'dummy' parameter avoids MessageType being the last (only) parameter
  // before varadic arguments to avoid promoting the enum to an int, which is an
  // error in newer clang because passing an object that undergoes default
  // argument promotion to 'va_start' has undefined behavior.
  virtual void SetSimpleExceptionWithArgs(MessageType message_type,
                                          int dummy, ...) = 0;

  void SetSimpleException(MessageType message_type) {
    SetSimpleExceptionWithArgs(message_type, 0);
  }
};

}  // namespace script
}  // namespace cobalt

#endif  // COBALT_SCRIPT_EXCEPTION_STATE_H_