public function __construct(Twig_Node_Expression_Filter $node)
{
if (!self::isDefaultFilter($node)) {
throw new Twig_Error('The default filter node cannot be created from the given node.', $node->getLine());
}
$test = new Twig_Node_Expression_Test(clone $node->getNode('node'), 'defined', new Twig_Node(), $node->getLine());
$default = count($node->getNode('arguments')) ? $node->getNode('arguments')->getNode(0) : new Twig_Node_Expression_Constant('', $node->getLine());
$node = new Twig_Node_Expression_Conditional($test, $node, $default, $node->getLine());
parent::__construct(array('node' => $node), array(), $node->getLine());
}
public function __construct(Twig_NodeInterface $node, Twig_Node_Expression_Constant $filterName, Twig_NodeInterface $arguments, $lineno, $tag = null)
{
$default = new Twig_Node_Expression_Filter($node, new Twig_Node_Expression_Constant('_default', $node->getLine()), $arguments, $node->getLine());
if ('default' === $filterName->getAttribute('value') && ($node instanceof Twig_Node_Expression_Name || $node instanceof Twig_Node_Expression_GetAttr)) {
$test = new Twig_Node_Expression_Test_Defined(clone $node, 'defined', new Twig_Node(), $node->getLine());
$false = count($arguments) ? $arguments->getNode(0) : new Twig_Node_Expression_Constant('', $node->getLine());
$node = new Twig_Node_Expression_Conditional($test, $default, $false, $node->getLine());
} else {
$node = $default;
}
parent::__construct($node, $filterName, $arguments, $lineno, $tag);
}
public function parseFilterExpressionRaw($node, $tag = null)
{
while (true) {
$token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE);
$name = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
$arguments = new Twig_Node();
} else {
$arguments = $this->parseArguments();
}
$node = new Twig_Node_Expression_Filter($node, $name, $arguments, $token->getLine(), $tag);
// The default filter is intercepted when the filtered value
// is a name (like obj) or an attribute (like obj.attr)
// In such a case, it's compiled to {{ obj is defined ? obj|default('bar') : 'bar' }}
if ('default' === $token->getValue() && ($node->getNode('node') instanceof Twig_Node_Expression_Name || $node->getNode('node') instanceof Twig_Node_Expression_GetAttr)) {
$test = new Twig_Node_Expression_Test(clone $node->getNode('node'), 'defined', new Twig_Node(), $node->getLine());
$default = count($node->getNode('arguments')) ? $node->getNode('arguments')->getNode(0) : new Twig_Node_Expression_Constant('', $node->getLine());
$node = new Twig_Node_Expression_Conditional($test, $node, $default, $node->getLine());
}
if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '|')) {
break;
}
$this->parser->getStream()->next();
}
return $node;
}
