vendor/doctrine/common/lib/Doctrine/Common/Proxy/ProxyGenerator.php

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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\Proxy;

use Doctrine\Common\Persistence\Mapping\ClassMetadata;
use Doctrine\Common\Util\ClassUtils;
use Doctrine\Common\Proxy\Exception\InvalidArgumentException;
use Doctrine\Common\Proxy\Exception\UnexpectedValueException;

/**
 * This factory is used to generate proxy classes.
 * It builds proxies from given parameters, a template and class metadata.
 *
 * @author Marco Pivetta <ocramius@gmail.com>
 * @since  2.4
 */
class ProxyGenerator
{
    /**
     * Used to match very simple id methods that don't need
     * to be decorated since the identifier is known.
     */
    const PATTERN_MATCH_ID_METHOD = '((public\s)?(function\s{1,}%s\s?\(\)\s{1,})\s{0,}{\s{0,}return\s{0,}\$this->%s;\s{0,}})i';

    /**
     * The namespace that contains all proxy classes.
     *
     * @var string
     */
    private $proxyNamespace;

    /**
     * The directory that contains all proxy classes.
     *
     * @var string
     */
    private $proxyDirectory;

    /**
     * Map of callables used to fill in placeholders set in the template.
     *
     * @var string[]|callable[]
     */