gw.internal.gosu.parser.expressions

Class TypeIsExpression

java.lang.Object

gw.internal.gosu.parser.ParsedElement

gw.internal.gosu.parser.Expression

gw.internal.gosu.parser.expressions.TypeIsExpression

All Implemented Interfaces:

ITypeIsExpression, IExpression, IHasType, IParsedElement

public final class TypeIsExpression
extends Expression
implements ITypeIsExpression

Represents a typeis expression in the Gosu grammar:

 typeis-expression
   <conditional-or-expression> typeis <type-literal>
 

See Also:

IGosuParser

Field Summary

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 and Description
TypeIsExpression() Base constructor sets type to BooleanType.

Method Summary

Modifier and Type	Method and Description
Object	evaluate() Perform a type (or instanceof) comparison.
Expression	getLHS()
TypeLiteral	getRHS()
void	setLHS(Expression e)
void	setRHS(TypeLiteral e)
String	toString() Subclasses should return a String representing the parsed expression.

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

evaluate, getContextType, getReturnType, getType, getTypeImpl, 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, isCompileTimeConstant, isSuppressed, isSuppressed, isSynthetic, makeDoubleValue, makeFloatValue, makeInteger, makeLong, removeParseException, removeParseWarning, removeParseWarningRecursively, setGosuProgram, setLineNum, setLocation, setParent, setSynthetic, shouldClearParseInfo

Methods inherited from class java.lang.Object

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

Methods inherited from interface gw.lang.parser.IExpression

evaluate, getContextType, isNullSafe, isUnchecked

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

Methods inherited from interface gw.lang.parser.IHasType

getType

Constructor Detail

TypeIsExpression

public TypeIsExpression()

Base constructor sets type to BooleanType.

Method Detail

getLHS

public Expression getLHS()

Specified by:

getLHS in interface ITypeIsExpression

Returns:

The expression for the left-hand-side operand.

setLHS

public void setLHS(Expression e)

Parameters:

e - The expression for the left-hand-side operand.

getRHS

public TypeLiteral getRHS()

Specified by:

getRHS in interface ITypeIsExpression

Returns:

The expression for the right-hand-side operand.

setRHS

public void setRHS(TypeLiteral e)

Parameters:

e - The expression for the right-hand-side operand.

evaluate

public Object evaluate()

Perform a type (or instanceof) 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.

Specified by:

toString in class Expression