vmm.functions
Class Expression

java.lang.Object
  vmm.functions.Function
      vmm.functions.Expression

public class Expression
extends Function

Represents a real-valued expression. An expression can only be produced by a Parser. An expression is implemented as a Function that has no arguments (and no name).

See Also:

Parser.parseExpression(String)

Field Summary

Fields inherited from class vmm.functions.Function

func

Method Summary

double	value() Evaluate this expression (using an EvalStack that is unique to the current Thread).
double	value(EvalStack stack) Evaluate this expression using a stack provided as a parameter.

Methods inherited from class vmm.functions.Function

getArity, getName, setName, value, value

Methods inherited from class java.lang.Object

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

Method Detail

value

public double value()

Evaluate this expression (using an EvalStack that is unique to the current Thread).

value

public double value(EvalStack stack)

Evaluate this expression using a stack provided as a parameter.

Parameters:

stack - a non-null stack to be used for evaluating the expression.