tree
Class expression

java.lang.Object
  |
  +--oops.parser.GoalAdapter
        |
        +--tree.expression

public class expression

extends oops.parser.GoalAdapter

Goal class for the expression rule. collect lines: [{ [ sum ] ';' }] in a Vector.

Author:

Bernd Kuehl, Bernd.Kuehl@informatik.uni-osnabrueck.de, Axel-Tobias Schreiner, axel@informatik.uni-osnabrueck.de, Jan Kraneis, jkraneis@informatik.uni-osnabrueck.de

Field Summary

protected java.util.Vector

lines stores a tree for each sum.

Fields inherited from class oops.parser.GoalAdapter

result

Constructor Summary

expression()

Method Summary

java.lang.Object	reduce() concludes rule recognition.
void	shift(oops.parser.Goal sender, java.lang.Object node) presents result of reduction.

Methods inherited from class oops.parser.GoalAdapter

shift, shift

Methods inherited from class java.lang.Object

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

Field Detail

lines

protected java.util.Vector lines

stores a tree for each sum.

Constructor Detail

expression

public expression()

Method Detail

shift

public void shift(oops.parser.Goal sender,
                  java.lang.Object node)

presents result of reduction.

Overrides:

shift in class oops.parser.GoalAdapter

Parameters:

sender - just received reduce().

node - was created by sender.

reduce

public java.lang.Object reduce()

concludes rule recognition.

Overrides:

reduce in class oops.parser.GoalAdapter

Returns:

Vector of sum trees.