edu.mit.ai.psg.jevaES
Class JNEUnaryExpression

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.JNEUnaryExpression

public class JNEUnaryExpression

extends ExpressionNode

implements JevaESParserConstants

Jeva parse Node for unary expressions (!x, ~x, -x, +x) [Java Lang Spec 1.0 sec 15.14.3-6]

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

boolean	computeIsConstant(IEnv env)
Class	computeType(IEnv env) [Java Lang Spec 1.0 sec 15.14.3-6]
Object	eval(IEnv env) [Java Lang Spec 1.0 sec 15.14.3-6]
IExpressionNode	getExpression()

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

getExpression

public IExpressionNode getExpression()

computeType

public Class computeType(IEnv env)
                  throws VerifyingException

[Java Lang Spec 1.0 sec 15.14.3-6]

Overrides:

computeType in class ExpressionNode

computeIsConstant

public boolean computeIsConstant(IEnv env)
                          throws VerifyingException

Overrides:

computeIsConstant in class ExpressionNode

eval

public Object eval(IEnv env)
            throws ThrowException

[Java Lang Spec 1.0 sec 15.14.3-6]

Overrides:

eval in class ExpressionNode