Twig_BaseNodeVisitor can be used to make node visitors compatible with Twig 1.x and 2.x. More...

Inheritance diagram for Twig_BaseNodeVisitor:

Collaboration diagram for Twig_BaseNodeVisitor:

Public Member Functions
	enterNode (Twig_NodeInterface $node, Twig_Environment $env)
	Called before child nodes are visited. More...

	leaveNode (Twig_NodeInterface $node, Twig_Environment $env)
	Called after child nodes are visited. More...

Public Member Functions inherited from Twig_NodeVisitorInterface
	getPriority ()
	Returns the priority for this visitor. More...

Protected Member Functions
	doEnterNode (Twig_Node $node, Twig_Environment $env)
	Called before child nodes are visited. More...

	doLeaveNode (Twig_Node $node, Twig_Environment $env)
	Called after child nodes are visited. More...

Detailed Description

Twig_BaseNodeVisitor can be used to make node visitors compatible with Twig 1.x and 2.x.

Author: Fabien Potencier fabie.nosp@m.n@sy.nosp@m.mfony.nosp@m..com

Definition at line 17 of file BaseNodeVisitor.php.

Member Function Documentation

◆ doEnterNode()

Twig_BaseNodeVisitor::doEnterNode	(	Twig_Node	$node,
		Twig_Environment	$env
	)

abstractprotected

Called before child nodes are visited.

Returns: Twig_Node The modified node

Referenced by enterNode(), and leaveNode().

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◆ doLeaveNode()

Twig_BaseNodeVisitor::doLeaveNode	(	Twig_Node	$node,
		Twig_Environment	$env
	)

abstractprotected

Called after child nodes are visited.

Returns: Twig_Node|false The modified node or false if the node must be removed

Referenced by leaveNode().

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◆ enterNode()

Twig_BaseNodeVisitor::enterNode	(	Twig_NodeInterface	$node,
		Twig_Environment	$env
	)

final

Called before child nodes are visited.

Returns: Twig_NodeInterface The modified node

Implements Twig_NodeVisitorInterface.

Definition at line 19 of file BaseNodeVisitor.php.

References doEnterNode().

     {
         if (!$node instanceof Twig_Node) {
             throw new LogicException('Twig_BaseNodeVisitor only supports Twig_Node instances.');
         }
 
         return $this->doEnterNode($node, $env);
     }

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◆ leaveNode()

Twig_BaseNodeVisitor::leaveNode	(	Twig_NodeInterface	$node,
		Twig_Environment	$env
	)

final

Called after child nodes are visited.

Returns: Twig_NodeInterface|false The modified node or false if the node must be removed

Implements Twig_NodeVisitorInterface.

Definition at line 28 of file BaseNodeVisitor.php.

References $env, doEnterNode(), and doLeaveNode().

     {
         if (!$node instanceof Twig_Node) {
             throw new LogicException('Twig_BaseNodeVisitor only supports Twig_Node instances.');
         }
 
         return $this->doLeaveNode($node, $env);
     }