<?php

/*
 * Copyright 2011 Johannes M. Schmitt <schmittjoh@gmail.com>
 *
 * 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.
 */

namespace JMS\DiExtraBundle\Annotation;

use JMS\DiExtraBundle\Exception\InvalidTypeException;

abstract class Reference
{
    /** @var string */
    public $value;

    /** @var boolean */
    public $required;

    public final function __construct()
    {
        if (0 === func_num_args()) {
            return;
        }
        $values = func_get_arg(0);

        if (isset($values['value'])) {
            if (!is_string($values['value'])) {
                throw new InvalidTypeException('Inject', 'value', 'string', $values['value']);
            }

            $this->value = $values['value'];
        }

        if (isset($values['required'])) {
            if (!is_bool($values['required'])) {
                throw new InvalidTypeException('Inject', 'required', 'boolean', $values['required']);
            }

            $this->required = $values['required'];
        }
    }
}