Class: Twig::NodeVisitor::Base

Inherits:

Object

• Object
• Twig::NodeVisitor::Base

Defined in:

lib/twig/node_visitor/base.rb

Direct Known Subclasses

Escaper, SafeAnalysis, Spreader

Instance Method Summary

• #enter_node(node, env) ⇒ Node::Base

  Called before child nodes are visited.

• #leave_node(node, env) ⇒ Node::Base^?

  Called after child nodes are visited.

• #priority ⇒ Integer

  The priority level.

Instance Method Details

#enter_node(node, env) ⇒ Node::Base

Called before child nodes are visited.

Parameters:

• node (Node::Base)
• env (Environment)

Returns:

• (Node::Base) —

  The modified node

Raises:

• (NotImplementedError)

# File 'lib/twig/node_visitor/base.rb', line 11

def enter_node(node, env)
  raise NotImplementedError, "Method #{__method__} must be implemented"
end

#leave_node(node, env) ⇒ Node::Base^?

Called after child nodes are visited.

Parameters:

• node (Node::Base)
• env (Environment)

Returns:

• (Node::Base, nil) —

  The modified node or nil if the node must be removed

Raises:

• (NotImplementedError)

# File 'lib/twig/node_visitor/base.rb', line 20

def leave_node(node, env)
  raise NotImplementedError, "Method #{__method__} must be implemented"
end

#priority ⇒ Integer

Returns The priority level.

Returns:

• (Integer) —

  The priority level

# File 'lib/twig/node_visitor/base.rb', line 25

def priority
  0
end