edu.mit.ai.psg.jevaES
Class JNERelationalExpression

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.LeftAssociativeOperatorExpression
                          |
                          +--edu.mit.ai.psg.jevaES.JNERelationalExpression

public class JNERelationalExpression

extends LeftAssociativeOperatorExpression

implements JevaESParserConstants

Jeva parse node for relational expressions (<,>,<=,>=) [JavaLangSpec 1.0 sec 15.19 Relational Operators]

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

children, id, parent

Fields inherited from interface edu.mit.ai.psg.jevaES.JevaESParserConstants

_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

Object	binaryCombine(Token operator, Object accumResult, Object nextResult) [JavaLangSpec 1.0 sec 15.19 Relational Operators]
Class	binaryCombineTypes(Token operator, Class leftType, Class rightType) also checks for incorrect operand types [JLS1.0sec15.19]

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

computeIsConstant, computeType, eval

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, 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

binaryCombineTypes

public Class binaryCombineTypes(Token operator,
                                Class leftType,
                                Class rightType)

also checks for incorrect operand types [JLS1.0sec15.19]

Overrides:

binaryCombineTypes in class LeftAssociativeOperatorExpression

Tags copied from class: LeftAssociativeOperatorExpression

Parameters:

operator - is the Token between expressions (e.g., +,-,*,/,...)

accumResult - is result of accumulating the expressions to the left of the operator.

nextResult - is result of evaluating the next expression to the right of the operator.

Returns:

Class of result of the combining accumResult and nextResult with operator.

Throws:

IllegalArgumentException - if types not acceptable

binaryCombine

public Object binaryCombine(Token operator,
                            Object accumResult,
                            Object nextResult)

[JavaLangSpec 1.0 sec 15.19 Relational Operators]

Overrides:

binaryCombine in class LeftAssociativeOperatorExpression

Tags copied from class: LeftAssociativeOperatorExpression

Parameters:

operator - is the Token between expressions (e.g., +,-,*,/,...)

accumResult - is result of accumulating the expressions to the left of the operator.

nextResult - is result of evaluating the next expression to the right of the operator.

Returns:

result of the combining accumResult and nextResult with operator

Throws:

ThrowException - if expression completes abruptly with exception