orc.runtime.nodes
Class WithLocation

java.lang.Object
  orc.runtime.nodes.Node
      orc.runtime.nodes.WithLocation

All Implemented Interfaces:

java.io.Serializable, Located

public class WithLocation
extends Node
implements Located

Annotates a node with a source location which is tracked by the token (for use in tracing and error messages). I opted to introduce a new node rather than add this capability for existing nodes because that makes it easier to omit this information in an "optimized" build.

Author:

quark

See Also:

Serialized Form

Field Summary

SourceLocation	location
Node	next

Constructor Summary

WithLocation(Node next, SourceLocation location)

Method Summary

SourceLocation	getSourceLocation()
void	process(Token t) The process method is the fundamental operation in the execution engine.

Methods inherited from class orc.runtime.nodes.Node

isTerminal, toString

Methods inherited from class java.lang.Object

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

Field Detail

next

public final Node next

location

public final SourceLocation location

Constructor Detail

WithLocation

public WithLocation(Node next,
                    SourceLocation location)

Method Detail

process

public void process(Token t)

Description copied from class: Node

The process method is the fundamental operation in the execution engine. It is called to perform the action of the node on a token.

Specified by:

process in class Node

Parameters:

t - input token being processed

getSourceLocation

public SourceLocation getSourceLocation()

Specified by:

getSourceLocation in interface Located