edu.mit.ai.psg.jeva
Class JNSLocalVariableDeclaration

java.lang.Object
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  +--edu.mit.ai.psg.jeva.SimpleNode
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        +--edu.mit.ai.psg.jeva.JevaNode
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              +--edu.mit.ai.psg.jeva.JNSLocalVariableDeclaration

public class JNSLocalVariableDeclaration

extends JevaNode

implements IStatementNode, JevaParserConstants

Jeva parse Node for local variable declarations, e.g., "int i = 0;". Can contain multiple declarations, e.g., "int i=0, j=1, k=2;".

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

children, id, parent

Fields inherited from interface edu.mit.ai.psg.jeva.JevaParserConstants

_DEFAULT, ABSTRACT, ANDASSIGN, ASSIGN, BANG, BIT_AND, BIT_OR, BOOLEAN, BREAK, BYTE, CASE, CATCH, CHAR, CHARACTER_LITERAL, CLASS, COLON, COMMA, CONST, CONTINUE, DECIMAL_LITERAL, DECR, DEFAULT, DIGIT, DO, DOT, DOUBLE, ELSE, EOF, EQ, EXPONENT, EXTENDS, FALSE, FINAL, FINALLY, FLOAT, FLOATING_POINT_LITERAL, FOR, FORMAL_COMMENT, GE, GOTO, GT, HEX_LITERAL, HOOK, IDENTIFIER, IF, IMPLEMENTS, IMPORT, INCR, INSTANCEOF, INT, INTEGER_LITERAL, INTERFACE, LBRACE, LBRACKET, LE, LETTER, LONG, LPAREN, LSHIFT, LSHIFTASSIGN, LT, MINUS, MINUSASSIGN, MULTI_LINE_COMMENT, NATIVE, NE, NEW, NULL, OCTAL_LITERAL, ORASSIGN, PACKAGE, PLUS, PLUSASSIGN, PRIVATE, PROTECTED, PUBLIC, RBRACE, RBRACKET, REM, REMASSIGN, RETURN, RPAREN, RSIGNEDSHIFT, RSIGNEDSHIFTASSIGN, RUNSIGNEDSHIFT, RUNSIGNEDSHIFTASSIGN, SC_AND, SC_OR, SEMICOLON, SHORT, SINGLE_LINE_COMMENT, SLASH, SLASHASSIGN, STAR, STARASSIGN, STATIC, STRING_LITERAL, SUPER, SWITCH, SYNCHRONIZED, THIS, THROW, THROWS, TILDE, tokenImage, TRANSIENT, TRUE, TRY, VOID, VOLATILE, WHILE, WHITE_SPACE, XOR, XORASSIGN

Method Summary

IEnv	eval(IEnv env) Evaluate this Statement; don't call this directly, use EvalMethods.eval(IStatementNode, IEnv) Every statement needs to implement an eval method.
JNSVariableDeclarator	getDeclaratorNode(int i)
int	getNumDeclarators()
JNType	getTypeNode()
Object	jjtAccept(IJevaVisitor visitor, Object data) Accept a visitor.
IEnv	verifyTypes(IEnv env) Extend environment so types of later expressions can be calculated.

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, notVerified, print, print, printSpecialTokens, printToken, printToString, printToString, removeChild, removeChildTokens, replaceChild, replaceChild, setBeginToken, setEndToken, shouldNotHappen, shouldNotHappen, shouldNotHappen, 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)

Description copied from interface: IJevaNode

Accept a visitor. For visitor design pattern: jjtAccept must simply

  return visitor.visit(this, data);  

which dispatches on the type of this to appropriate method of visitor

Overrides:

jjtAccept in class JevaNode

getTypeNode

public JNType getTypeNode()

getNumDeclarators

public int getNumDeclarators()

getDeclaratorNode

public JNSVariableDeclarator getDeclaratorNode(int i)

verifyTypes

public IEnv verifyTypes(IEnv env)
                 throws VerifyingException

Extend environment so types of later expressions can be calculated. Don't evaluate var initializers, which may have side effects.

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 Statement; don't call this directly, use EvalMethods.eval(IStatementNode, IEnv) Every statement needs to implement an eval method.

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)