org.jruby.ast
Class BackRefNode

java.lang.Object
  extended by org.jruby.ast.Node
      extended by org.jruby.ast.BackRefNode
All Implemented Interfaces:
ISourcePositionHolder

public class BackRefNode
extends Node

Regexp back reference: - $& last successful match - $+ highest numbered group matched in last successful match. - $` what precedes the last successful match - $' what follows the last successful match


Field Summary
 
Fields inherited from class org.jruby.ast.Node
EMPTY_COMMENT_LIST, INVALID_POSITION, nodeId
 
Constructor Summary
BackRefNode(ISourcePosition position, int type)
           
 
Method Summary
 Instruction accept(NodeVisitor iVisitor)
          Accept for the visitor pattern.
 java.util.List<Node> childNodes()
           
 java.lang.String definition(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock)
           
 char getType()
          Gets the type
 IRubyObject interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock)
           
 
Methods inherited from class org.jruby.ast.Node
addComment, addComments, assign, createList, getComments, getNodeName, getPosition, getPositionIncludingComments, hasComments, isInvisible, setPosition, toString, when
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

BackRefNode

public BackRefNode(ISourcePosition position,
                   int type)
Method Detail

accept

public Instruction accept(NodeVisitor iVisitor)
Accept for the visitor pattern.

Specified by:
accept in class Node
Parameters:
iVisitor - the visitor

getType

public char getType()
Gets the type

Returns:
the character which generates the back reference

childNodes

public java.util.List<Node> childNodes()
Specified by:
childNodes in class Node

interpret

public IRubyObject interpret(Ruby runtime,
                             ThreadContext context,
                             IRubyObject self,
                             Block aBlock)
Overrides:
interpret in class Node

definition

public java.lang.String definition(Ruby runtime,
                                   ThreadContext context,
                                   IRubyObject self,
                                   Block aBlock)
Overrides:
definition in class Node


Copyright © 2002-2007 JRuby Team. All Rights Reserved.