47 lines
962 B
PHP
47 lines
962 B
PHP
<?php
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/*
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* This file is part of php-token-stream.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* A caching factory for token stream objects.
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*/
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class PHP_Token_Stream_CachingFactory
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{
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/**
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* @var array
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*/
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protected static $cache = [];
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/**
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* @param string $filename
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*
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* @return PHP_Token_Stream
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*/
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public static function get($filename)
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{
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if (!isset(self::$cache[$filename])) {
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self::$cache[$filename] = new PHP_Token_Stream($filename);
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}
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return self::$cache[$filename];
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}
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/**
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* @param string $filename
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*/
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public static function clear($filename = null)
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{
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if (is_string($filename)) {
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unset(self::$cache[$filename]);
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} else {
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self::$cache = [];
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}
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}
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}
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