class Twig_Node_Expression_Test_Null in Translation template extractor 6.3

Checks that a variable is null.

<pre> {{ var is none }} </pre>

@author Fabien Potencier <[e-mail]>

Hierarchy

• class \Twig_Node implements Twig_NodeInterface
  • class \Twig_Node_Expression
    • class \Twig_Node_Expression_Call
      • class \Twig_Node_Expression_Test
        • class \Twig_Node_Expression_Test_Null

1 string reference to 'Twig_Node_Expression_Test_Null'

Twig_Extension_Core::getTests in vendor/Twig/Extension/Core.php

Returns a list of tests to add to the existing list.

File

vendor/Twig/Node/Expression/Test/Null.php, line 21

class Twig_Node_Expression_Test_Null extends Twig_Node_Expression_Test {
  public function compile(Twig_Compiler $compiler) {
    $compiler
      ->raw('(null === ')
      ->subcompile($this
      ->getNode('node'))
      ->raw(')');
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Twig_Node::$attributes	protected	property
Twig_Node::$lineno	protected	property
Twig_Node::$nodes	protected	property
Twig_Node::$tag	protected	property
Twig_Node::count	public	function
Twig_Node::getAttribute	public	function	Gets an attribute.
Twig_Node::getIterator	public	function
Twig_Node::getLine	public	function	Overrides Twig_NodeInterface::getLine
Twig_Node::getNode	public	function	Gets a node by name.
Twig_Node::getNodeTag	public	function	Overrides Twig_NodeInterface::getNodeTag
Twig_Node::hasAttribute	public	function	Returns true if the attribute is defined.
Twig_Node::hasNode	public	function	Returns true if the node with the given identifier exists.
Twig_Node::removeAttribute	public	function	Removes an attribute.
Twig_Node::removeNode	public	function	Removes a node by name.
Twig_Node::setAttribute	public	function	Sets an attribute.
Twig_Node::setNode	public	function	Sets a node.
Twig_Node::toXml Deprecated	public	function
Twig_Node::__toString	public	function
Twig_Node_Expression_Call::compileArguments	protected	function
Twig_Node_Expression_Call::compileCallable	protected	function
Twig_Node_Expression_Call::getArguments	protected	function
Twig_Node_Expression_Call::normalizeName	protected	function
Twig_Node_Expression_Test::__construct	public	function	Constructor. Overrides Twig_Node::__construct	1
Twig_Node_Expression_Test_Null::compile	public	function	Compiles the node to PHP. Overrides Twig_Node_Expression_Test::compile