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   1  <?php
   2  
   3  /*
   4   * This file is part of Twig.
   5   *
   6   * (c) Fabien Potencier
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Twig\TokenParser;
  13  
  14  use Twig\Error\SyntaxError;
  15  use Twig\Node\BodyNode;
  16  use Twig\Node\MacroNode;
  17  use Twig\Node\Node;
  18  use Twig\Token;
  19  
  20  /**
  21   * Defines a macro.
  22   *
  23   *   {% macro input(name, value, type, size) %}
  24   *      <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />
  25   *   {% endmacro %}
  26   */
  27  final class MacroTokenParser extends AbstractTokenParser
  28  {
  29      public function parse(Token $token)
  30      {
  31          $lineno = $token->getLine();
  32          $stream = $this->parser->getStream();
  33          $name = $stream->expect(/* Token::NAME_TYPE */ 5)->getValue();
  34  
  35          $arguments = $this->parser->getExpressionParser()->parseArguments(true, true);
  36  
  37          $stream->expect(/* Token::BLOCK_END_TYPE */ 3);
  38          $this->parser->pushLocalScope();
  39          $body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
  40          if ($token = $stream->nextIf(/* Token::NAME_TYPE */ 5)) {
  41              $value = $token->getValue();
  42  
  43              if ($value != $name) {
  44                  throw new SyntaxError(sprintf('Expected endmacro for macro "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getSourceContext());
  45              }
  46          }
  47          $this->parser->popLocalScope();
  48          $stream->expect(/* Token::BLOCK_END_TYPE */ 3);
  49  
  50          $this->parser->setMacro($name, new MacroNode($name, new BodyNode([$body]), $arguments, $lineno, $this->getTag()));
  51  
  52          return new Node();
  53      }
  54  
  55      public function decideBlockEnd(Token $token)
  56      {
  57          return $token->test('endmacro');
  58      }
  59  
  60      public function getTag()
  61      {
  62          return 'macro';
  63      }
  64  }
  65  
  66  class_alias('Twig\TokenParser\MacroTokenParser', 'Twig_TokenParser_Macro');