Package gw.internal.gosu.parser.expressions

Class RelationalExpression

java.lang.Object

gw.internal.gosu.parser.ParsedElement

gw.internal.gosu.parser.Expression

gw.internal.gosu.parser.expressions.BinaryExpression

gw.internal.gosu.parser.expressions.ConditionalExpression

gw.internal.gosu.parser.expressions.RelationalExpression

All Implemented Interfaces:

IBinaryExpression, IConditionalExpression, IOverridableOperation, IRelationalExpression, IExpression, IHasType, IParsedElement

public final class RelationalExpression
extends ConditionalExpression
implements IRelationalExpression

Represents a relational expression in the Gosu grammar:

 relational-expression
   <bitshift-expression>
   <relational-expression> < <bitshift-expression>
   <relational-expression> > <bitshift-expression>
   <relational-expression> <= <bitshift-expression>
   <relational-expression> >= <bitshift-expression>
 

See Also:

• IGosuParser

Field Summary

Fields

Modifier and Type	Field	Description
private String	_strOperator	An attribute specifying the type of operation e.g., > >= < <=

Fields inherited from class gw.internal.gosu.parser.Expression

_type

Fields inherited from class gw.internal.gosu.parser.ParsedElement

_tokens, UNDEF_FILE, UNDEF_FUNCTION, UNDEF_MODULE

Fields inherited from interface gw.lang.parser.IExpression

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
RelationalExpression()

Method Summary

Modifier and Type	Method	Description
Object	evaluate()	Perform a relational comparison.
String	getOperator()
void	setOperator(String strOperator)
String	toString()	Subclasses should return a String representing the parsed expression.

Methods inherited from class gw.internal.gosu.parser.expressions.ConditionalExpression

compareNumbers, getOverride, getType, getTypeImpl, isCompileTimeConstant, setOverride

Methods inherited from class gw.internal.gosu.parser.expressions.BinaryExpression

getLHS, getRHS, setLHS, setRHS

Methods inherited from class gw.internal.gosu.parser.Expression

evaluate, getContextType, getReturnType, isNullSafe, isUnchecked, setType

Methods inherited from class gw.internal.gosu.parser.ParsedElement

addExceptionsFrom, addParseException, addParseException, addParseException, addParseExceptions, addParseIssues, addParseWarning, addParseWarning, addParseWarnings, addToken, adjustColumn, adjustLineNum, assignTokens, clearParseExceptions, clearParseTreeInformation, clearParseWarnings, compactParseTree, findAncestorParsedElementByType, findDeclaringStatement, findLineNumberOfDeclaration, findRootParsedElement, getAnnotations, getColumn, getContainedParsedElementsByType, getContainedParsedElementsByTypes, getContainedParsedElementsByTypesWithIgnoreSet, getEnclosingFeatureInfo, getFunctionName, getGosuClass, getGosuProgram, getImmediateParseIssue, getImmediateParseIssues, getLineNum, getLocation, getModule, getParent, getParseExceptions, getParseIssues, getParseWarnings, getQualifyingEnclosingTypeInfo, getTokens, hasImmediateParseIssue, hasImmediateParseWarning, hasImmediateParseWarnings, hasParseException, hasParseExceptions, hasParseIssue, hasParseIssues, hasParseWarning, hasParseWarnings, initEmptyParseTree, initLocation, isSuppressed, isSuppressed, isSynthetic, makeDoubleValue, makeFloatValue, makeInteger, makeLong, removeParseException, removeParseWarning, removeParseWarningRecursively, setGosuProgram, setLineNum, setLocation, setParent, setSynthetic, shouldClearParseInfo, visit

Methods inherited from class java.lang.Object

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

Methods inherited from interface gw.lang.parser.expressions.IConditionalExpression

getLHS, getRHS

Methods inherited from interface gw.lang.parser.IExpression

evaluate, getContextType, isNullSafe, isUnchecked

Methods inherited from interface gw.lang.parser.IHasType

getType

Methods inherited from interface gw.lang.parser.expressions.IOverridableOperation

getOverride, setOverride

Methods inherited from interface gw.lang.parser.IParsedElement

addExceptionsFrom, addParseException, addParseException, addParseWarning, addParseWarning, clearParseExceptions, clearParseTreeInformation, clearParseWarnings, findAncestorParsedElementByType, findDeclaringStatement, findRootParsedElement, getColumn, getContainedParsedElementsByType, getContainedParsedElementsByTypes, getContainedParsedElementsByTypesWithIgnoreSet, getFunctionName, getGosuClass, getGosuProgram, getImmediateParseIssue, getImmediateParseIssues, getLineNum, getLocation, getModule, getParent, getParseExceptions, getParseIssues, getParseWarnings, getReturnType, getTokens, hasImmediateParseIssue, hasImmediateParseWarnings, hasParseException, hasParseExceptions, hasParseIssue, hasParseIssues, hasParseWarning, hasParseWarnings, isCompileTimeConstant, isSuppressed, isSynthetic, setLocation, setParent, visit

Field Details

_strOperator

private String _strOperator

An attribute specifying the type of operation e.g., > >= < <=

Constructor Details

RelationalExpression

public RelationalExpression()

Method Details

getOperator

public String getOperator()

Specified by:

getOperator in interface IBinaryExpression

Specified by:

getOperator in interface IRelationalExpression

Overrides:

getOperator in class BinaryExpression

setOperator

public void setOperator(String strOperator)

Overrides:

setOperator in class BinaryExpression

evaluate

public Object evaluate()

Perform a relational comparison.

Specified by:

evaluate in interface IExpression

Overrides:

evaluate in class Expression

toString

public String toString()

Description copied from class: Expression

Subclasses should return a String representing the parsed expression.

Overrides:

toString in class BinaryExpression