slogo.instruction
Class Equal

java.lang.Object
  slogo.language.GrammarElement
      slogo.instruction.Instruction
          slogo.instruction.Equal

public class Equal
extends Instruction

Field Summary

(package private) Expression	e1
(package private) Expression	e2

Fields inherited from class slogo.language.GrammarElement

gelementsToValue

Constructor Summary

Equal(Expression e1, Expression e2)

Method Summary

java.lang.Object

evaluate(Context c) Evaluate this language construct in some context.

Methods inherited from class java.lang.Object

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

Field Detail

e1

Expression e1

e2

Expression e2

Constructor Detail

Equal

public Equal(Expression e1,
             Expression e2)

Method Detail

evaluate

public java.lang.Object evaluate(Context c)

Description copied from class: GrammarElement

Evaluate this language construct in some context. The evaluation may have side-effects, e.g., moving a turtle.

Overrides:

evaluate in class Instruction

Parameters:

c - context in which the evaluation takes place

Returns:

the result of evaluating the construct