1:  2:  3:  4:  5:  6:  7:  8:  9: 10: 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24: 25: 26: 27: 28: 29: 30: 31: 32: 33: 34: 35: 36: 37: 38: 39: 40: 41: 42: 43: 44: 45: 46: 47: 48: 49: 50: 51: 52: 53: 54: 55: 56: 57: 58: 59: 60: 61: 62: 63: 64: 65: 66: 67: 68: 69: 70: 71: 72: 73: 74: 75: 76: 77: 78: 79: 80: 81: 82: 83: 84: 85: 

<?php

/**
 * This file is part of the Lean Mapper library (http://www.leanmapper.com)
 *
 * Copyright (c) 2013 Vojtěch Kohout (aka Tharos)
 *
 * For the full copyright and license information, please view the file
 * license-mit.txt that was distributed with this source code.
 */

namespace LeanMapper\Reflection;

use LeanMapper\Exception\InvalidAnnotationException;
use ReflectionClass;

/**
 * Enumeration of possible property values
 *
 * @author Vojtěch Kohout
 */
class PropertyValuesEnum
{

    /** @var array */
    private $values = array();

    /** @var array */
    private $index = array();


    /**
     * @param string $definition
     * @param EntityReflection $reflection
     * @throws InvalidAnnotationException
     */
    public function __construct($definition, EntityReflection $reflection)
    {
        $matches = array();
        preg_match('#^((?:\\\\?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)+|self|static|parent)::([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]+)\*$#', $definition, $matches);
        if (empty($matches)) {
            throw new InvalidAnnotationException("Invalid enumeration definition given: '$definition'.");
        }
        list(, $class, $prefix) = $matches;

        if ($class === 'self' or $class === 'static') {
            $constants = $reflection->getConstants();
        } elseif ($class === 'parent') {
            $constants = $reflection->getParentClass()->getConstants();
        } else {
            $aliases = $reflection->getAliases();
            $reflectionClass = new ReflectionClass($aliases->translate($class));
            $constants = $reflectionClass->getConstants();
        }
        foreach ($constants as $name => $value) {
            if (substr($name, 0, strlen($prefix)) === $prefix) {
                $this->values[$name] = $value;
                $this->index[$value] = true;
            }
        }
    }

    /**
     * Tells wheter given value is from enumeration
     *
     * @param mixed $value
     * @return bool
     */
    public function isValueFromEnum($value)
    {
        return isset($this->index[$value]);
    }

    /**
     * Gets possible enumeration values
     *
     * @return array
     */
    public function getValues()
    {
        return $this->values;
    }

}