junc.ast
Class NullLiteral

java.lang.Object
  |
  +--antlr.BaseAST
        |
        +--antlr.CommonAST
              |
              +--junc.ast.JUnCASTNode
                    |
                    +--junc.ast.ExpressionNode
                          |
                          +--junc.ast.Literal
                                |
                                +--junc.ast.NullLiteral

All Implemented Interfaces:

antlr.collections.AST, java.io.Serializable

public class NullLiteral

extends Literal

See Also:

Serialized Form

Field Summary

Fields inherited from class junc.ast.ExpressionNode

falseList, leftValue, statementExpression, trueList, type

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

NullLiteral()

Method Summary

int	addToConstantPool(org.apache.bcel.generic.ClassGen classGen)
void	translate(org.apache.bcel.generic.ClassGen classGen, org.apache.bcel.generic.MethodGen methodGen) Describe translate method here.
junc.types.JUnCBaseType	typeCheck(junc.symtab.SymbolTable stable) Describe typeCheck method here.

Methods inherited from class junc.ast.ExpressionNode

addFalseList, addTrueList, appendToFalseList, appendToTrueList, backPatch, desynthesize, evaluate, evaluateExp, leftValue, lookupPrimop, superExp, synthesize, thisExp, thisOrSuperExp, translateSynthesized, type, typeExp, variableExp

Methods inherited from class junc.ast.JUnCASTNode

getColumnNumber, getLineNumber, setColumnNumber, setLineNumber

Methods inherited from class antlr.CommonAST

getText, getType, initialize, initialize, initialize, setText, setType

Methods inherited from class antlr.BaseAST

addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NullLiteral

public NullLiteral()

Method Detail

typeCheck

public junc.types.JUnCBaseType typeCheck(junc.symtab.SymbolTable stable)
                                  throws TypeCheckError

Description copied from class: ExpressionNode

Describe typeCheck method here.

Specified by:

typeCheck in class Literal

Parameters:

stable - a SymbolTable value

Returns:

a JUnCBaseType value

Throws:

TypeCheckError - if an error occurs

translate

public void translate(org.apache.bcel.generic.ClassGen classGen,
                      org.apache.bcel.generic.MethodGen methodGen)

Description copied from class: ExpressionNode

Describe translate method here.

Overrides:

translate in class ExpressionNode

Parameters:

classGen - a ClassGen value

methodGen - a MethodGen value

addToConstantPool

public int addToConstantPool(org.apache.bcel.generic.ClassGen classGen)

Specified by:

addToConstantPool in class Literal