Файл: upload/core/vendor/twig/twig/src/Node/ForNode.php
Строк: 158
<?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.
*/
namespace TwigNode;
use TwigAttributeYieldReady;
use TwigCompiler;
use TwigNodeExpressionAbstractExpression;
use TwigNodeExpressionVariableAssignContextVariable;
/**
* Represents a for node.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
#[YieldReady]
class ForNode extends Node
{
private $loop;
public function __construct(AssignContextVariable $keyTarget, AssignContextVariable $valueTarget, AbstractExpression $seq, ?Node $ifexpr, Node $body, ?Node $else, int $lineno)
{
$body = new Nodes([$body, $this->loop = new ForLoopNode($lineno)]);
if (null !== $ifexpr) {
trigger_deprecation('twig/twig', '3.19', sprintf('Passing not-null to the "ifexpr" argument of the "%s" constructor is deprecated.', static::class));
}
if (null !== $else && !$else instanceof ForElseNode) {
trigger_deprecation('twig/twig', '3.19', sprintf('Not passing an instance of "%s" to the "else" argument of the "%s" constructor is deprecated.', ForElseNode::class, static::class));
$else = new ForElseNode($else, $else->getTemplateLine());
}
$nodes = ['key_target' => $keyTarget, 'value_target' => $valueTarget, 'seq' => $seq, 'body' => $body];
if (null !== $else) {
$nodes['else'] = $else;
}
parent::__construct($nodes, ['with_loop' => true], $lineno);
}
public function compile(Compiler $compiler): void
{
$compiler
->addDebugInfo($this)
->write("$context['_parent'] = $context;n")
->write("$context['_seq'] = CoreExtension::ensureTraversable(")
->subcompile($this->getNode('seq'))
->raw(");n")
;
if ($this->hasNode('else')) {
$compiler->write("$context['_iterated'] = false;n");
}
if ($this->getAttribute('with_loop')) {
$compiler
->write("$context['loop'] = [n")
->write(" 'parent' => $context['_parent'],n")
->write(" 'index0' => 0,n")
->write(" 'index' => 1,n")
->write(" 'first' => true,n")
->write("];n")
->write("if (is_array($context['_seq']) || (is_object($context['_seq']) && $context['_seq'] instanceof Countable)) {n")
->indent()
->write("$length = count($context['_seq']);n")
->write("$context['loop']['revindex0'] = $length - 1;n")
->write("$context['loop']['revindex'] = $length;n")
->write("$context['loop']['length'] = $length;n")
->write("$context['loop']['last'] = 1 === $length;n")
->outdent()
->write("}n")
;
}
$this->loop->setAttribute('else', $this->hasNode('else'));
$this->loop->setAttribute('with_loop', $this->getAttribute('with_loop'));
$compiler
->write("foreach ($context['_seq'] as ")
->subcompile($this->getNode('key_target'))
->raw(' => ')
->subcompile($this->getNode('value_target'))
->raw(") {n")
->indent()
->subcompile($this->getNode('body'))
->outdent()
->write("}n")
;
if ($this->hasNode('else')) {
$compiler->subcompile($this->getNode('else'));
}
$compiler->write("$_parent = $context['_parent'];n");
// remove some "private" loop variables (needed for nested loops)
$compiler->write('unset($context['_seq'], $context[''.$this->getNode('key_target')->getAttribute('name').''], $context[''.$this->getNode('value_target')->getAttribute('name').''], $context['_parent']');
if ($this->hasNode('else')) {
$compiler->raw(', $context['_iterated']');
}
if ($this->getAttribute('with_loop')) {
$compiler->raw(', $context['loop']');
}
$compiler->raw(");n");
// keep the values set in the inner context for variables defined in the outer context
$compiler->write("$context = array_intersect_key($context, $_parent) + $_parent;n");
}
}