edu.mit.ai.psg.jevaES
Class JNSExpressionStatementList

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

public class JNSExpressionStatementList

extends JevaNode

implements IStatementNode

Jeva parse Node for lists of expression statements, used in for statements' initialize and update clauses.

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

children, id, parent

Method Summary

IEnv	eval(IEnv env) Evaluate this verified Statement (don't call this directly, use EvalMethods.eval).
IEnv	verifyTypes(IEnv env) Verify types within this statement (don't call this directly, use EvalMethods.verifyTypes).

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

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

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

verifyTypes

public IEnv verifyTypes(IEnv env)
                 throws VerifyingException

Description copied from interface: IStatementNode

Verify types within this statement (don't call this directly, use EvalMethods.verifyTypes). Also builds env without evaluating anything with side effects, for the purpose of verifying types of later statements. May be used by preprocessors which must find the type of an expression in order to assign it to a new variable.

Specified by:

verifyTypes in interface IStatementNode

Tags copied from interface: IStatementNode

Parameters:

env - environment of names bindings.

Returns:

env or possibly extended env

Throws:

VerifyingException - if statement is illegal

See Also:

EvalMethods.verifyTypes(IStatementNode, IEnv)

eval

public IEnv eval(IEnv env)
          throws ThrowException

Description copied from interface: IStatementNode

Evaluate this verified Statement (don't call this directly, use EvalMethods.eval).

Specified by:

eval in interface IStatementNode

Tags copied from interface: IStatementNode

Parameters:

env - environment of names bindings.

Returns:

env or possibly extended env

Throws:

AbruptCompletionException - if abruptly completed with return, throw, break, or continue.

See Also:

EvalMethods.eval(IStatementNode, IEnv)