Package edu.wisc.game.parser

Class Expression.NegationExpression

java.lang.Object

edu.wisc.game.parser.Expression.NegationExpression

All Implemented Interfaces:

Expression, Expression.ArithmeticExpression

Enclosing interface:

Expression

public static class Expression.NegationExpression
extends Object
implements Expression.ArithmeticExpression

!E evaluates to [1] if E is an empty set, or to [] otherwise

Nested Class Summary

Nested classes/interfaces inherited from interface edu.wisc.game.parser.Expression

Expression.AdditiveExpression, Expression.ArithmeticExpression, Expression.BracketList, Expression.ColonExpression, Expression.ComparisonExpression, Expression.ExList, Expression.Id, Expression.Mapper, Expression.MapTo<T>, Expression.MultiplicativeExpression, Expression.NegationExpression, Expression.Num, Expression.ParenList, Expression.PropMap, Expression.QualifiedId, Expression.RangeExpression, Expression.SerialExpression, Expression.Star, Expression.VarMap, Expression.VarMap2

Field Summary

Fields inherited from interface edu.wisc.game.parser.Expression

STAR

Method Summary

Modifier and Type	Method	Description
HashSet<Integer>	evalSet(HashMap<String,HashSet<Integer>> hh)	Evaluates this expression for the given values of the variables involved.
HashSet<Object>	evalSet2(Expression.VarMap2 hh)
HashSet<String>	listAllVars()	Lists all variable names used in this expression
Expression	map(Expression.Mapper mapper)	Applies the mapper to each component
String	toSrc()
String	toString()

Methods inherited from class java.lang.Object

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

Method Details

toString

public String toString()

Overrides:

toString in class Object

toSrc

public String toSrc()

Specified by:

toSrc in interface Expression

listAllVars

public HashSet<String> listAllVars()

Lists all variable names used in this expression

Specified by:

listAllVars in interface Expression.ArithmeticExpression

evalSet

public HashSet<Integer> evalSet(HashMap<String,HashSet<Integer>> hh)

Description copied from interface: Expression.ArithmeticExpression

Evaluates this expression for the given values of the variables involved. Can be used when the arguments can have multiple values.

Specified by:

evalSet in interface Expression.ArithmeticExpression

Parameters:

hh - The hash map that contains for each variable the possible set of its values.

Returns:

the set of the possible values of the expression, or an empty set if the expression uses a variable whose value is not in h

evalSet2

public HashSet<Object> evalSet2(Expression.VarMap2 hh)

Specified by:

evalSet2 in interface Expression.ArithmeticExpression

map

public Expression map(Expression.Mapper mapper)
               throws RuleParseException

Applies the mapper to each component

Specified by:

map in interface Expression

Throws:

RuleParseException