Package gw.internal.gosu.parser.expressions

Class TypeAsExpression

java.lang.Object

gw.internal.gosu.parser.ParsedElement

gw.internal.gosu.parser.Expression

gw.internal.gosu.parser.expressions.TypeAsExpression

All Implemented Interfaces:

ITypeAsExpression, IExpression, IHasType, IParsedElement

Direct Known Subclasses:

ImplicitTypeAsExpression

public class TypeAsExpression
extends Expression
implements ITypeAsExpression

Represents a typeas expression in the Gosu grammar:

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

See Also:

IGosuParser

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	_lhs

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
TypeAsExpression()	Base constructor sets type to BooleanType.

Method Summary

Modifier and Type	Method	Description
Object	evaluate()	Perform a type cast.
ICoercer	getCoercer()
Expression	getLHS()
boolean	isCompileTimeConstant()
void	setCoercer(ICoercer coercer)
void	setLHS(Expression 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, 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.IExpression

evaluate, getContextType, isNullSafe, isUnchecked

Methods inherited from interface gw.lang.parser.IHasType

getType

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, isSuppressed, isSynthetic, setLocation, setParent, visit

Field Detail

_lhs

protected Expression _lhs

Constructor Detail

TypeAsExpression

public TypeAsExpression()

Base constructor sets type to BooleanType.

Method Detail

getLHS

public Expression getLHS()

Specified by:

getLHS in interface ITypeAsExpression

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.

isCompileTimeConstant

public boolean isCompileTimeConstant()

Specified by:

isCompileTimeConstant in interface IParsedElement

Overrides:

isCompileTimeConstant in class ParsedElement

evaluate

public Object evaluate()

Perform a type cast.

Specified by:

evaluate in interface IExpression

Overrides:

evaluate in class Expression

setCoercer

public void setCoercer(ICoercer coercer)

getCoercer

public ICoercer getCoercer()

Specified by:

getCoercer in interface ITypeAsExpression

toString

public String toString()

Description copied from class: Expression

Subclasses should return a String representing the parsed expression.

Specified by:

toString in class Expression