ast
Class ConstExpr

java.lang.Object
  ast.ASTNode
      ast.Expr
          ast.ConstExpr

Direct Known Subclasses:

ConstBooleanExpr, ConstIntExpr, ConstStringExpr

public abstract class ConstExpr
extends Expr

The abstract ConstExpr class represents constant expressions (int constants, boolean constants, String constants). It contains a a constant value. Subclasses of this class can be handled similarly within the compiler, so most functionality can be implemented in the visitor method for this class.

See Also:

ASTNode, Expr

Field Summary

protected java.lang.String

constant Constant value

Fields inherited from class ast.ASTNode

charNum, lineNum, lineStr

Constructor Summary

ConstExpr(int lineNum, java.lang.String constant)
ConstExpr constructor

Method Summary

abstract java.lang.Object	accept(Visitor v) Visitor method
java.lang.String	getConstant() Get the constant value

Methods inherited from class ast.Expr

getExprType, setExprType

Methods inherited from class ast.ASTNode

getLineNum

Methods inherited from class java.lang.Object

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

Field Detail

constant

protected java.lang.String constant

Constant value

Constructor Detail

ConstExpr

public ConstExpr(int lineNum,
                 java.lang.String constant)

ConstExpr constructor

Parameters:

lineNum - source line number corresponding to this AST node

constant - constant value

Method Detail

getConstant

public java.lang.String getConstant()

Get the constant value

Returns:

constant value

accept

public abstract java.lang.Object accept(Visitor v)

Visitor method

Specified by:

accept in class Expr

Parameters:

v - visitor object

Returns:

result of visiting this node

See Also:

Visitor