org.jruby.ast
Class FlipNode

java.lang.Object
  org.jruby.ast.Node
      org.jruby.ast.FlipNode

All Implemented Interfaces:

ISourcePositionHolder

public class FlipNode
extends Node

A Range in a boolean expression (named after a FlipFlop component in electronic?).

Field Summary

Fields inherited from class org.jruby.ast.Node

EMPTY_COMMENT_LIST, INVALID_POSITION, nodeId

Constructor Summary

FlipNode(ISourcePosition position, Node beginNode, Node endNode, boolean exclusive, int location)

Method Summary

Instruction	accept(NodeVisitor iVisitor) Accept for the visitor pattern.
java.util.List<Node>	childNodes()
Node	getBeginNode() Gets the beginNode.
int	getDepth() How many scopes should we burrow down to until we need to set the block variable value.
Node	getEndNode() Gets the endNode.
int	getIndex() Gets the index within the scope construct that actually holds the eval'd value of this local variable
IRubyObject	interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock)
boolean	isExclusive() Gets the exclusive.

Methods inherited from class org.jruby.ast.Node

addComment, addComments, assign, createList, definition, getComments, getNodeName, getPosition, getPositionIncludingComments, hasComments, isInvisible, setPosition, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FlipNode

public FlipNode(ISourcePosition position,
                Node beginNode,
                Node endNode,
                boolean exclusive,
                int location)

Method Detail

accept

public Instruction accept(NodeVisitor iVisitor)

Accept for the visitor pattern.

Specified by:

accept in class Node

Parameters:

iVisitor - the visitor

getBeginNode

public Node getBeginNode()

Gets the beginNode. beginNode will set the FlipFlop the first time it is true

Returns:

Returns a Node

getEndNode

public Node getEndNode()

Gets the endNode. endNode will reset the FlipFlop when it is true while the FlipFlop is set.

Returns:

Returns a Node

isExclusive

public boolean isExclusive()

Gets the exclusive. if the range is a 2 dot range it is false if it is a three dot it is true

Returns:

Returns a boolean

getDepth

public int getDepth()

How many scopes should we burrow down to until we need to set the block variable value.

Returns:

0 for current scope, 1 for one down, ...

getIndex

public int getIndex()

Gets the index within the scope construct that actually holds the eval'd value of this local variable

Returns:

Returns an int offset into storage structure

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