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