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<?php
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/*
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* This file is part of Twig.
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*
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* (c) 2009 Fabien Potencier
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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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/**
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* Represents a macro node.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Twig_Node_Macro extends Twig_Node
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{
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const VARARGS_NAME = 'varargs';
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public function __construct($name, Twig_NodeInterface $body, Twig_NodeInterface $arguments, $lineno, $tag = null)
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{
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foreach ($arguments as $argumentName => $argument) {
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if (self::VARARGS_NAME === $argumentName) {
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throw new Twig_Error_Syntax(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), $argument->getLine());
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}
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}
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parent::__construct(array('body' => $body, 'arguments' => $arguments), array('name' => $name), $lineno, $tag);
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}
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public function compile(Twig_Compiler $compiler)
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{
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$compiler
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->addDebugInfo($this)
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->write(sprintf('public function get%s(', $this->getAttribute('name')))
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;
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$count = count($this->getNode('arguments'));
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$pos = 0;
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foreach ($this->getNode('arguments') as $name => $default) {
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$compiler
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->raw('$__'.$name.'__ = ')
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->subcompile($default)
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;
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if (++$pos < $count) {
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$compiler->raw(', ');
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}
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}
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if (PHP_VERSION_ID >= 50600) {
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if ($count) {
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$compiler->raw(', ');
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}
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$compiler->raw('...$__varargs__');
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}
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$compiler
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->raw(")\n")
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->write("{\n")
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->indent()
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;
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$compiler
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->write("\$context = \$this->env->mergeGlobals(array(\n")
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->indent()
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;
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foreach ($this->getNode('arguments') as $name => $default) {
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$compiler
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->addIndentation()
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->string($name)
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->raw(' => $__'.$name.'__')
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->raw(",\n")
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;
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}
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$compiler
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->addIndentation()
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->string(self::VARARGS_NAME)
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->raw(' => ')
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;
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if (PHP_VERSION_ID >= 50600) {
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$compiler->raw("\$__varargs__,\n");
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} else {
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$compiler
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->raw('func_num_args() > ')
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->repr($count)
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->raw(' ? array_slice(func_get_args(), ')
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->repr($count)
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->raw(") : array(),\n")
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;
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}
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$compiler
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->outdent()
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->write("));\n\n")
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->write("\$blocks = array();\n\n")
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->write("ob_start();\n")
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->write("try {\n")
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->indent()
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->subcompile($this->getNode('body'))
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->outdent()
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->write("} catch (Exception \$e) {\n")
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->indent()
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->write("ob_end_clean();\n\n")
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->write("throw \$e;\n")
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->outdent()
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->write("}\n\n")
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->write("return ('' === \$tmp = ob_get_clean()) ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset());\n")
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->outdent()
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->write("}\n\n")
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;
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}
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}
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