<?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\TokenParser;
use Twig\Error\SyntaxError;
use Twig\Node\Expression\AssignNameExpression;
use Twig\Node\ImportNode;
use Twig\Token;
/**
* Imports macros.
*
* {% from 'forms.html' import forms %}
*
* @final
*/
class FromTokenParser extends AbstractTokenParser
{
public function parse(Token $token)
{
$macro = $this->parser->getExpressionParser()->parseExpression();
$stream = $this->parser->getStream();
$stream->expect(Token::NAME_TYPE, 'import');
$targets = [];
do {
$name = $stream->expect(Token::NAME_TYPE)->getValue();
$alias = $name;
if ($stream->nextIf('as')) {
$alias = $stream->expect(Token::NAME_TYPE)->getValue();
}
$targets[$name] = $alias;
if (!$stream->nextIf(Token::PUNCTUATION_TYPE, ',')) {
break;
}
} while (true);
$stream->expect(Token::BLOCK_END_TYPE);
$var = new AssignNameExpression($this->parser->getVarName(), $token->getLine());
$node = new ImportNode($macro, $var, $token->getLine(), $this->getTag());
foreach ($targets as $name => $alias) {
if ($this->parser->isReservedMacroName($name)) {
throw new SyntaxError(sprintf('"%s" cannot be an imported macro as it is a reserved keyword.', $name), $token->getLine(), $stream->getSourceContext());
}
$this->parser->addImportedSymbol('function', $alias, 'get'.$name, $var);
}
return $node;
}
public function getTag()
{
return 'from';
}
}
class_alias('Twig\TokenParser\FromTokenParser', 'Twig_TokenParser_From');