cobalt/script/exception_state.h

// Copyright 2015 The Cobalt Authors. 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 <stdarg.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;

  // Use MessageType for commonly used exceptions.
  void SetSimpleException(MessageType message_type) {
    const char* message = GetExceptionMessage(message_type);
    SimpleExceptionType type = GetSimpleExceptionType(message_type);
    SetSimpleException(type, message);
  }

  // Set a simple exception with the specified error message.
  void SetSimpleException(SimpleExceptionType type, const char* format, ...) {
    va_list arguments;
    va_start(arguments, format);
    SetSimpleExceptionVA(type, format, arguments);
    va_end(arguments);
  }

 protected:
  virtual void SetSimpleExceptionVA(SimpleExceptionType, const char* format,
                                    va_list & args) = 0;
};

}  // namespace script
}  // namespace cobalt

#endif  // COBALT_SCRIPT_EXCEPTION_STATE_H_