edu.mit.ai.psg.jevaES
Class JNSReturnStatement

java.lang.Object
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  +--edu.mit.ai.psg.jevaES.SimpleNode
        |
        +--edu.mit.ai.psg.jevaES.JevaNode
              |
              +--edu.mit.ai.psg.jevaES.JNSReturnStatement

public class JNSReturnStatement

extends JevaNode

implements IStatementNode

Jeva parse Node for return Statements.

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

IEnv	eval(IEnv env)
IExpressionNode	getExpression()
IEnv	verifyTypes(IEnv env) Checks expr assignable to env.lookupReturnType() [JavaLangSpec1.0 sec 14.15]

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()

verifyTypes

public IEnv verifyTypes(IEnv env)
                 throws VerifyingException

Checks expr assignable to env.lookupReturnType() [JavaLangSpec1.0 sec 14.15]

Specified by:

verifyTypes in interface IStatementNode

eval

public IEnv eval(IEnv env)
          throws ReturnException,
                 ThrowException

Specified by:

eval in interface IStatementNode