Parses a token and returns a node.
Twig_Token $token A Twig_Token instance:
Twig_NodeInterface A Twig_NodeInterface instance
Overrides Twig_TokenParserInterface::parse
public function parse(Twig_Token $token) {
$lineno = $token
->getLine();
$stream = $this->parser
->getStream();
$targets = $this->parser
->getExpressionParser()
->parseAssignmentExpression();
$stream
->expect(Twig_Token::OPERATOR_TYPE, 'in');
$seq = $this->parser
->getExpressionParser()
->parseExpression();
$ifexpr = null;
if ($stream
->test(Twig_Token::NAME_TYPE, 'if')) {
$stream
->next();
$ifexpr = $this->parser
->getExpressionParser()
->parseExpression();
}
$stream
->expect(Twig_Token::BLOCK_END_TYPE);
$body = $this->parser
->subparse(array(
$this,
'decideForFork',
));
if ($stream
->next()
->getValue() == 'else') {
$stream
->expect(Twig_Token::BLOCK_END_TYPE);
$else = $this->parser
->subparse(array(
$this,
'decideForEnd',
), true);
}
else {
$else = null;
}
$stream
->expect(Twig_Token::BLOCK_END_TYPE);
if (count($targets) > 1) {
$keyTarget = $targets
->getNode(0);
$keyTarget = new Twig_Node_Expression_AssignName($keyTarget
->getAttribute('name'), $keyTarget
->getLine());
$valueTarget = $targets
->getNode(1);
$valueTarget = new Twig_Node_Expression_AssignName($valueTarget
->getAttribute('name'), $valueTarget
->getLine());
}
else {
$keyTarget = new Twig_Node_Expression_AssignName('_key', $lineno);
$valueTarget = $targets
->getNode(0);
$valueTarget = new Twig_Node_Expression_AssignName($valueTarget
->getAttribute('name'), $valueTarget
->getLine());
}
if ($ifexpr) {
$this
->checkLoopUsageCondition($stream, $ifexpr);
$this
->checkLoopUsageBody($stream, $body);
}
return new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, $lineno, $this
->getTag());
}