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20862be7d0
- slim/slim: ^3.1 - symfony/expression-language: ^3.4 - fxp/composer-asset-plugin: ~1.3 - bower-asset/vue: ^2.5 - bower-asset/vue-resource: ^1.5
66 lines
1.5 KiB
PHP
66 lines
1.5 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespace Symfony\Component\ExpressionLanguage\Node;
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use Symfony\Component\ExpressionLanguage\Compiler;
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/**
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* @author Fabien Potencier <fabien@symfony.com>
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*
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* @internal
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*/
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class UnaryNode extends Node
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{
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private static $operators = array(
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'!' => '!',
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'not' => '!',
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'+' => '+',
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'-' => '-',
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);
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public function __construct($operator, Node $node)
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{
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parent::__construct(
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array('node' => $node),
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array('operator' => $operator)
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);
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}
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public function compile(Compiler $compiler)
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{
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$compiler
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->raw('(')
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->raw(self::$operators[$this->attributes['operator']])
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->compile($this->nodes['node'])
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->raw(')')
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;
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}
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public function evaluate($functions, $values)
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{
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$value = $this->nodes['node']->evaluate($functions, $values);
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switch ($this->attributes['operator']) {
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case 'not':
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case '!':
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return !$value;
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case '-':
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return -$value;
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}
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return $value;
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}
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public function toArray()
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{
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return array('(', $this->attributes['operator'].' ', $this->nodes['node'], ')');
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}
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}
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