edu.mit.ai.psg.jevaES
Class JNEEqualityExpression

java.lang.Object
  |
  +--edu.mit.ai.psg.jevaES.SimpleNode
        |
        +--edu.mit.ai.psg.jevaES.JevaNode
              |
              +--edu.mit.ai.psg.jevaES.ExpressionNode
                    |
                    +--edu.mit.ai.psg.jevaES.LeftAssociativeOperatorExpression
                          |
                          +--edu.mit.ai.psg.jevaES.JNEEqualityExpression

public class JNEEqualityExpression

extends LeftAssociativeOperatorExpression

implements JevaESParserConstants

Jeva parse Node for == and != Expressions [JavaLangSpec 1.0 sec 15.20 Equality Operators].

Author:

CarlManning, caroma@ai.mit.edu
Copyright (c) 1997, 1998 Massachusetts Institute of Technology

Fields inherited from class edu.mit.ai.psg.jevaES.SimpleNode

children, id, parent

Method Summary

Object	binaryCombine(Token operator, Object accumResult, Object nextResult) [JavaLangSpec 1.0 sec 15.20 Equality Operators]
Class	binaryCombineTypes(Token operator, Class leftType, Class rightType) operands must either both be numeric, both be boolean, or both be references or null [JavaLangSpec 1.0 sec 15.20]

Methods inherited from class edu.mit.ai.psg.jevaES.LeftAssociativeOperatorExpression

computeIsConstant, computeType, eval

Methods inherited from class edu.mit.ai.psg.jevaES.ExpressionNode

getType, getValue, isConstant

Methods inherited from class edu.mit.ai.psg.jevaES.JevaNode

getBeginToken, getEndToken, print, print, printToken, printToString, printToString, setBeginToken, setEndToken

Methods inherited from class edu.mit.ai.psg.jevaES.SimpleNode

dump, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, toString, toString

Methods inherited from class java.lang.Object

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

Method Detail

binaryCombineTypes

public Class binaryCombineTypes(Token operator,
                                Class leftType,
                                Class rightType)

operands must either both be numeric, both be boolean, or both be references or null [JavaLangSpec 1.0 sec 15.20]

Overrides:

binaryCombineTypes in class LeftAssociativeOperatorExpression

binaryCombine

public Object binaryCombine(Token operator,
                            Object accumResult,
                            Object nextResult)
                     throws ThrowException

[JavaLangSpec 1.0 sec 15.20 Equality Operators]

Overrides:

binaryCombine in class LeftAssociativeOperatorExpression