leilukin-tumbleblog/includes/lib/Twig/Node/MacroNode.php

122 lines
3.9 KiB
PHP

<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\Node;
use Twig\Attribute\YieldReady;
use Twig\Compiler;
use Twig\Error\SyntaxError;
use Twig\Node\Expression\ArrayExpression;
use Twig\Node\Expression\Variable\LocalVariable;
/**
* Represents a macro node.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
#[YieldReady]
class MacroNode extends Node
{
public const VARARGS_NAME = 'varargs';
/**
* @param BodyNode $body
* @param ArrayExpression $arguments
*/
public function __construct(string $name, Node $body, Node $arguments, int $lineno)
{
if (!$body instanceof BodyNode) {
trigger_deprecation('twig/twig', '3.12', \sprintf('Not passing a "%s" instance as the "body" argument of the "%s" constructor is deprecated ("%s" given).', BodyNode::class, static::class, $body::class));
}
if (!$arguments instanceof ArrayExpression) {
trigger_deprecation('twig/twig', '3.15', \sprintf('Not passing a "%s" instance as the "arguments" argument of the "%s" constructor is deprecated ("%s" given).', ArrayExpression::class, static::class, $arguments::class));
$args = new ArrayExpression([], $arguments->getTemplateLine());
foreach ($arguments as $n => $default) {
$args->addElement($default, new LocalVariable($n, $default->getTemplateLine()));
}
$arguments = $args;
}
foreach ($arguments->getKeyValuePairs() as $pair) {
if ("\u{035C}".self::VARARGS_NAME === $pair['key']->getAttribute('name')) {
throw new SyntaxError(\sprintf('The argument "%s" in macro "%s" cannot be defined because the variable "%s" is reserved for arbitrary arguments.', self::VARARGS_NAME, $name, self::VARARGS_NAME), $pair['value']->getTemplateLine(), $pair['value']->getSourceContext());
}
}
parent::__construct(['body' => $body, 'arguments' => $arguments], ['name' => $name], $lineno);
}
public function compile(Compiler $compiler): void
{
$compiler
->addDebugInfo($this)
->write(\sprintf('public function macro_%s(', $this->getAttribute('name')))
;
/** @var ArrayExpression $arguments */
$arguments = $this->getNode('arguments');
foreach ($arguments->getKeyValuePairs() as $pair) {
$name = $pair['key'];
$default = $pair['value'];
$compiler
->subcompile($name)
->raw(' = ')
->subcompile($default)
->raw(', ')
;
}
$compiler
->raw('...$varargs')
->raw("): string|Markup\n")
->write("{\n")
->indent()
->write("\$macros = \$this->macros;\n")
->write("\$context = [\n")
->indent()
;
foreach ($arguments->getKeyValuePairs() as $pair) {
$name = $pair['key'];
$var = $name->getAttribute('name');
if (str_starts_with($var, "\u{035C}")) {
$var = substr($var, \strlen("\u{035C}"));
}
$compiler
->write('')
->string($var)
->raw(' => ')
->subcompile($name)
->raw(",\n")
;
}
$node = new CaptureNode($this->getNode('body'), $this->getNode('body')->lineno);
$compiler
->write('')
->string(self::VARARGS_NAME)
->raw(' => ')
->raw("\$varargs,\n")
->outdent()
->write("] + \$this->env->getGlobals();\n\n")
->write("\$blocks = [];\n\n")
->write('return ')
->subcompile($node)
->raw("\n")
->outdent()
->write("}\n\n")
;
}
}