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<?php

/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/

namespace Doctrine\Common\Annotations\Annotation;

/**
* Annotation that can be used to signal to the parser
* to check the available values during the parsing process.
*
* @since 2.4
* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
*
* @Annotation
* @Attributes({
* @Attribute("value", required = true, type = "array"),
* @Attribute("literal", required = false, type = "array")
* })
*/
final class Enum
{
    /**
* @var array
*/
    public $value;

    /**
* Literal target declaration.
*
* @var array
*/
    public $literal;

    /**
* Annotation construct
*
* @param array $values
*
* @throws \InvalidArgumentException
*/
    public function __construct(array $values)
    {
        if ( ! isset($values['literal'])) {
            $values['literal'] = array();
        }

        foreach ($values['value'] as $var) {
            if( ! is_scalar($var)) {
                throw new \InvalidArgumentException(sprintf(
                    '@Enum supports only scalar values "%s" given.',
                    is_object($var) ? get_class($var) : gettype($var)
                ));
            }
        }

        foreach ($values['literal'] as $key => $var) {
            if( ! in_array($key, $values['value'])) {
                throw new \InvalidArgumentException(sprintf(
                    'Undefined enumerator value "%s" for literal "%s".',
                    $key , $var
                ));
            }
        }

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

}
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