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98 lines
3.3 KiB
98 lines
3.3 KiB
<?php
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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* (c) Armin Ronacher
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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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class Twig_Node_Expression_GetAttr extends Twig_Node_Expression
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{
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public function __construct(Twig_Node_Expression $node, Twig_Node_Expression $attribute, Twig_Node_Expression $arguments = null, $type, $lineno)
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{
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$nodes = array('node' => $node, 'attribute' => $attribute);
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if (null !== $arguments) {
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$nodes['arguments'] = $arguments;
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}
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parent::__construct($nodes, array('type' => $type, 'is_defined_test' => false, 'ignore_strict_check' => false, 'optimizable' => true), $lineno);
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}
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public function compile(Twig_Compiler $compiler)
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{
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$env = $compiler->getEnvironment();
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// optimize array calls
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if (
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$this->getAttribute('optimizable')
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&& (!$env->isStrictVariables() || $this->getAttribute('ignore_strict_check'))
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&& !$this->getAttribute('is_defined_test')
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&& Twig_Template::ARRAY_CALL === $this->getAttribute('type')
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) {
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$var = '$'.$compiler->getVarName();
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$compiler
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->raw('(('.$var.' = ')
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->subcompile($this->getNode('node'))
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->raw(') && is_array(')
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->raw($var)
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->raw(') || ')
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->raw($var)
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->raw(' instanceof ArrayAccess ? (')
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->raw($var)
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->raw('[')
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->subcompile($this->getNode('attribute'))
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->raw('] ?? null) : null)')
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;
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return;
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}
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$compiler->raw('twig_get_attribute($this->env, $this->source, ');
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if ($this->getAttribute('ignore_strict_check')) {
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$this->getNode('node')->setAttribute('ignore_strict_check', true);
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}
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$compiler->subcompile($this->getNode('node'));
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$compiler->raw(', ')->subcompile($this->getNode('attribute'));
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// only generate optional arguments when needed (to make generated code more readable)
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$needFifth = $env->hasExtension('Twig_Extension_Sandbox');
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$needFourth = $needFifth || $this->getAttribute('ignore_strict_check');
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$needThird = $needFourth || $this->getAttribute('is_defined_test');
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$needSecond = $needThird || Twig_Template::ANY_CALL !== $this->getAttribute('type');
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$needFirst = $needSecond || $this->hasNode('arguments');
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if ($needFirst) {
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if ($this->hasNode('arguments')) {
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$compiler->raw(', ')->subcompile($this->getNode('arguments'));
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} else {
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$compiler->raw(', array()');
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}
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}
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if ($needSecond) {
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$compiler->raw(', ')->repr($this->getAttribute('type'));
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}
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if ($needThird) {
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$compiler->raw(', ')->repr($this->getAttribute('is_defined_test'));
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}
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if ($needFourth) {
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$compiler->raw(', ')->repr($this->getAttribute('ignore_strict_check'));
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}
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if ($needFifth) {
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$compiler->raw(', ')->repr($env->hasExtension('Twig_Extension_Sandbox'));
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}
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$compiler->raw(')');
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}
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}
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class_alias('Twig_Node_Expression_GetAttr', 'Twig\Node\Expression\GetAttrExpression', false);
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