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7bceda976b
* Extender docblocks cleanup * Excplicit type hinting in extenders * Bring method under constructor * Mark some classes and methods as internal * Remove beta references Co-authored-by: Clark Winkelmann <clark.winkelmann@gmail.com>
52 lines
894 B
PHP
52 lines
894 B
PHP
<?php
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/*
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* This file is part of Flarum.
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*
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* For detailed copyright and license information, please view the
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* LICENSE file that was distributed with this source code.
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*/
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namespace Flarum\Frontend\Compiler\Source;
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/**
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* @internal
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*/
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class StringSource implements SourceInterface
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{
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/**
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* @var callable
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*/
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protected $callback;
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private $content;
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/**
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* @param callable $callback
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*/
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public function __construct(callable $callback)
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{
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$this->callback = $callback;
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}
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/**
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* @return string
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*/
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public function getContent(): string
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{
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if (is_null($this->content)) {
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$this->content = call_user_func($this->callback);
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}
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return $this->content;
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}
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/**
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* @return mixed
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*/
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public function getCacheDifferentiator()
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{
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return $this->getContent();
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}
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}
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