Twig_TokenParser_If Class Reference

Tests a condition. More...

Inheritance diagram for Twig_TokenParser_If:

Collaboration diagram for Twig_TokenParser_If:

Public Member Functions
	parse (Twig_Token $token)
	Parses a token and returns a node. More...
	decideIfFork (Twig_Token $token)
	decideIfEnd (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

Tests a condition.

{% if users %}
 




% for user in users %}
     {{ user.username|e }}
   {% endfor %}
 
{% endif %}

@final

Definition at line 28 of file If.php.

Member Function Documentation

decideIfEnd()

Twig_TokenParser_If::decideIfEnd

(

Twig_Token

$token

)

Definition at line 75 of file If.php.

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

References Twig_Token\test().

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decideIfFork()

Twig_TokenParser_If::decideIfFork

(

Twig_Token

$token

)

Definition at line 70 of file If.php.

    {
        return $token->test(array('elseif', 'else', 'endif'));
    }

References Twig_Token\test().

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getTag()

Twig_TokenParser_If::getTag

(

)

Gets the tag name associated with this token parser.

Returns

string The tag name

Implements Twig_TokenParserInterface.

Definition at line 80 of file If.php.

    {
        return 'if';
    }

Referenced by parse().

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parse()

Twig_TokenParser_If::parse

(

Twig_Token

$token

)

Parses a token and returns a node.

Returns

Twig_NodeInterface

Exceptions

Twig_Error_Syntax

Implements Twig_TokenParserInterface.

Definition at line 30 of file If.php.

    {
        $lineno = $token->getLine();
        $expr = $this->parser->getExpressionParser()->parseExpression();
        $stream = $this->parser->getStream();
        $stream->expect(Twig_Token::BLOCK_END_TYPE);
        $body = $this->parser->subparse(array($this, 'decideIfFork'));
        $tests = array($expr, $body);
        $else = null;
 
        $end = false;
        while (!$end) {
            switch ($stream->next()->getValue()) {
                case 'else':
                    $stream->expect(Twig_Token::BLOCK_END_TYPE);
                    $else = $this->parser->subparse(array($this, 'decideIfEnd'));
                    break;
 
                case 'elseif':
                    $expr = $this->parser->getExpressionParser()->parseExpression();
                    $stream->expect(Twig_Token::BLOCK_END_TYPE);
                    $body = $this->parser->subparse(array($this, 'decideIfFork'));
                    $tests[] = $expr;
                    $tests[] = $body;
                    break;
 
                case 'endif':
                    $end = true;
                    break;
 
                default:
                    throw new Twig_Error_Syntax(sprintf('Unexpected end of template. Twig was looking for the following tags "else", "elseif", or "endif" to close the "if" block started at line %d).', $lineno), $stream->getCurrent()->getLine(), $stream->getSourceContext());
            }
        }
 
        $stream->expect(Twig_Token::BLOCK_END_TYPE);
 
        return new Twig_Node_If(new Twig_Node($tests), $else, $lineno, $this->getTag());
    }

References $end, GuzzleHttp\Psr7\$stream, Twig_Token\BLOCK_END_TYPE, Twig_Token\getLine(), getTag(), 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/If.php