Twig_TokenParser_Block Class Reference

Marks a section of a template as being reusable. More...

Inheritance diagram for Twig_TokenParser_Block:

Collaboration diagram for Twig_TokenParser_Block:

Public Member Functions
	parse (Twig_Token $token)
	Parses a token and returns a node. More...
	decideBlockEnd (Twig_Token $token)
	getTag ()
	Gets the tag name associated with this token parser. More...
Public Member Functions inherited from Twig_TokenParser
	setParser (Twig_Parser $parser)
	Sets the parser associated with this token parser. More...
	setParser (Twig_Parser $parser)
	Sets the parser associated with this token parser. More...
	parse (Twig_Token $token)
	Parses a token and returns a node. More...
	getTag ()
	Gets the tag name associated with this token parser. More...

Additional Inherited Members
Protected Attributes inherited from Twig_TokenParser
	$parser

Detailed Description

Marks a section of a template as being reusable.

 {% block head %}
   <link rel="stylesheet" href="style.css" >
   <title>{% block title %}{% endblock %} - My Webpage</title>
 {% endblock %}

@final

Definition at line 25 of file Block.php.

Member Function Documentation

decideBlockEnd()

Twig_TokenParser_Block::decideBlockEnd

(

Twig_Token

$token

)

Definition at line 62 of file Block.php.

    {
        return $token->test('endblock');
    }

References Twig_Token\test().

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getTag()

Twig_TokenParser_Block::getTag

(

)

Gets the tag name associated with this token parser.

Returns

string The tag name

Implements Twig_TokenParserInterface.

Definition at line 67 of file Block.php.

    {
        return 'block';
    }

Referenced by parse().

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parse()

Twig_TokenParser_Block::parse

(

Twig_Token

$token

)

Parses a token and returns a node.

Returns

Twig_NodeInterface

Exceptions

Twig_Error_Syntax

Implements Twig_TokenParserInterface.

Definition at line 27 of file Block.php.

    {
        $lineno = $token->getLine();
        $stream = $this->parser->getStream();
        $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
        if ($this->parser->hasBlock($name)) {
            throw new Twig_Error_Syntax(sprintf("The block '%s' has already been defined line %d.", $name, $this->parser->getBlock($name)->getTemplateLine()), $stream->getCurrent()->getLine(), $stream->getSourceContext());
        }
        $this->parser->setBlock($name, $block = new Twig_Node_Block($name, new Twig_Node(array()), $lineno));
        $this->parser->pushLocalScope();
        $this->parser->pushBlockStack($name);
 
        if ($stream->nextIf(Twig_Token::BLOCK_END_TYPE)) {
            $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
            if ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) {
                $value = $token->getValue();
 
                if ($value != $name) {
                    throw new Twig_Error_Syntax(sprintf('Expected endblock for block "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getSourceContext());
                }
            }
        } else {
            $body = new Twig_Node(array(
                new Twig_Node_Print($this->parser->getExpressionParser()->parseExpression(), $lineno),
            ));
        }
        $stream->expect(Twig_Token::BLOCK_END_TYPE);
 
        $block->setNode('body', $body);
        $this->parser->popBlockStack();
        $this->parser->popLocalScope();
 
        return new Twig_Node_BlockReference($name, $lineno, $this->getTag());
    }

References $name, GuzzleHttp\Psr7\$stream, Twig_Token\BLOCK_END_TYPE, Twig_Token\getLine(), getTag(), Twig_Token\getValue(), Twig_Token\NAME_TYPE, and sprintf.

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The documentation for this class was generated from the following file:

• libs/composer/vendor/twig/twig/lib/Twig/TokenParser/Block.php