edu.mit.ai.psg.jeva
Class JNEUnaryExpression

java.lang.Object
  |
  +--edu.mit.ai.psg.jeva.SimpleNode
        |
        +--edu.mit.ai.psg.jeva.JevaNode
              |
              +--edu.mit.ai.psg.jeva.ExpressionNode
                    |
                    +--edu.mit.ai.psg.jeva.JNEUnaryExpression

public class JNEUnaryExpression

extends ExpressionNode

implements JevaParserConstants

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.jeva.SimpleNode

children, id, parent

Method Summary

boolean	computeIsConstant(IEnv env)
IClass	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()
Object	jjtAccept(IJevaVisitor visitor, Object data)

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

getType, getType, getValue, isConstant

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

checkInsertionPoint, find2ndTokenBeforeEndBody, findChildIndex, findPrecedingToken, findTokenBeforeChild, findTokenBeforeChild, findTokenBeforeEnd, getBeginToken, getEndToken, insertChildTokens, insertNewChildAfter, insertNewChildAt, insertNewChildBefore, jnGetChild, jnGetParent, print, print, printToken, printToString, printToString, removeChild, removeChildTokens, replaceChild, replaceChild, setBeginToken, setEndToken, updateEndTokens, updateEndTokensPriorChild, updateEndTokensPriorNode, updateEndTokensPriorNode

Methods inherited from class edu.mit.ai.psg.jeva.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

jjtAccept

public Object jjtAccept(IJevaVisitor visitor,
                        Object data)

Overrides:

jjtAccept in class JevaNode

getExpression

public IExpressionNode getExpression()

computeType

public IClass 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