Package edu.wisc.game.parser

Class Expression.Id

java.lang.Object

edu.wisc.game.parser.Expression.Id

All Implemented Interfaces:

Expression, Expression.ArithmeticExpression

Direct Known Subclasses:

Expression.QualifiedId

Enclosing interface:

Expression

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

A variable. In GS 2.0. a STRING is treated as a variable name as well, in order to deal with quoted shape names such as "au/kangaroo".

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

Modifier and Type	Field	Description
final String	sVal

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

STAR

Constructor Summary

Constructors

Constructor	Description
Id(String s)

Method Summary

Modifier and Type	Method	Description
HashSet<Integer>	evalSet(HashMap<String,HashSet<Integer>> h)	Evaluates this expression for the given values of the variables involved.
HashSet<Object>	evalSet2(Expression.VarMap2 h)
HashSet<String>	listAllVars()
Expression	map(Expression.Mapper mapper)
String	toSrc()
String	toString()	Returns bare string (never quotes), so that it can be correctly used in RuleSer.PropertyCondition

Methods inherited from class java.lang.Object

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

Field Details

sVal

public final String sVal

Constructor Details

Id

public Id(String s)
   throws RuleParseException

Parameters:

s - Must be a proper ID, not a quoted string

Throws:

RuleParseException

Method Details

evalSet

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

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:

h - 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 h)

Specified by:

evalSet2 in interface Expression.ArithmeticExpression

toString

public String toString()

Returns bare string (never quotes), so that it can be correctly used in RuleSer.PropertyCondition

Overrides:

toString in class Object

toSrc

public String toSrc()

Specified by:

toSrc in interface Expression

listAllVars

public HashSet<String> listAllVars()

Specified by:

listAllVars in interface Expression.ArithmeticExpression

map

public Expression map(Expression.Mapper mapper)
               throws RuleParseException

Specified by:

map in interface Expression

Throws:

RuleParseException