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
115 lines
3.8 KiB
PHP
115 lines
3.8 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 GetAttrNode extends Node
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{
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const PROPERTY_CALL = 1;
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const METHOD_CALL = 2;
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const ARRAY_CALL = 3;
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public function __construct(Node $node, Node $attribute, ArrayNode $arguments, $type)
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{
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parent::__construct(
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array('node' => $node, 'attribute' => $attribute, 'arguments' => $arguments),
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array('type' => $type)
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);
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}
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public function compile(Compiler $compiler)
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{
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switch ($this->attributes['type']) {
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case self::PROPERTY_CALL:
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$compiler
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->compile($this->nodes['node'])
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->raw('->')
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->raw($this->nodes['attribute']->attributes['value'])
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;
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break;
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case self::METHOD_CALL:
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$compiler
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->compile($this->nodes['node'])
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->raw('->')
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->raw($this->nodes['attribute']->attributes['value'])
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->raw('(')
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->compile($this->nodes['arguments'])
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->raw(')')
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;
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break;
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case self::ARRAY_CALL:
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$compiler
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->compile($this->nodes['node'])
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->raw('[')
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->compile($this->nodes['attribute'])->raw(']')
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;
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break;
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}
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}
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public function evaluate($functions, $values)
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{
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switch ($this->attributes['type']) {
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case self::PROPERTY_CALL:
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$obj = $this->nodes['node']->evaluate($functions, $values);
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if (!is_object($obj)) {
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throw new \RuntimeException('Unable to get a property on a non-object.');
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}
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$property = $this->nodes['attribute']->attributes['value'];
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return $obj->$property;
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case self::METHOD_CALL:
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$obj = $this->nodes['node']->evaluate($functions, $values);
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if (!is_object($obj)) {
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throw new \RuntimeException('Unable to get a property on a non-object.');
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}
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if (!is_callable($toCall = array($obj, $this->nodes['attribute']->attributes['value']))) {
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throw new \RuntimeException(sprintf('Unable to call method "%s" of object "%s".', $this->nodes['attribute']->attributes['value'], get_class($obj)));
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}
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return call_user_func_array($toCall, $this->nodes['arguments']->evaluate($functions, $values));
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case self::ARRAY_CALL:
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$array = $this->nodes['node']->evaluate($functions, $values);
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if (!is_array($array) && !$array instanceof \ArrayAccess) {
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throw new \RuntimeException('Unable to get an item on a non-array.');
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}
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return $array[$this->nodes['attribute']->evaluate($functions, $values)];
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}
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}
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public function toArray()
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{
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switch ($this->attributes['type']) {
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case self::PROPERTY_CALL:
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return array($this->nodes['node'], '.', $this->nodes['attribute']);
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case self::METHOD_CALL:
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return array($this->nodes['node'], '.', $this->nodes['attribute'], '(', $this->nodes['arguments'], ')');
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case self::ARRAY_CALL:
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return array($this->nodes['node'], '[', $this->nodes['attribute'], ']');
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}
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}
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}
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