scale.clef.decl
Class ValueDecl

java.lang.Object
  |
  +--scale.common.Root
        |
        +--scale.clef.Node
              |
              +--scale.clef.decl.Declaration
                    |
                    +--scale.clef.decl.ValueDecl

All Implemented Interfaces:

AnnotationInterface, DisplayNode, java.io.Serializable

Direct Known Subclasses:

ConstantDecl, FieldDecl, VariableDecl

public abstract class ValueDecl

extends Declaration

This class represents a declaration that has an initial value.

$Id: ValueDecl.java,v 1.29 2002/01/03 21:42:46 burrill Exp $

Copyright 2002 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

See Also:

Serialized Form

Fields inherited from class scale.clef.decl.Declaration

accessibilities, cAuto, cExtern, cFile, cGlobal, cLocal, cMemory, cPrivate, cProtected, cPublic, cRegister, residencies, visibilitys

Fields inherited from interface scale.common.DisplayNode

ANNO, CLEF, DD, DEFUSE, DOM, EXPR, MAYUSE, TYPE

Constructor Summary

protected

ValueDecl(java.lang.String name, Type type, Expression initialValue) Create a ValueDecl with the specified name, type, and value.

Method Summary

protected Vector	createChildren() Create the list of children for the node - each node that has children must implement this method.
java.lang.Object	getConstantValue() Return the constant value of the expression.
Expression	getValue()
boolean	isConst()
void	setValue(Expression v)
void	visit(Predicate p) The visit() method is used to implement a visit 'pattern'.

Methods inherited from class scale.clef.decl.Declaration

accessibility, addressTaken, DDname, finalize, getCoreType, getDecl, getDisplayColorHint, getDisplayShapeHint, getDisplayText, getName, getParent, getScope, getScopeNode, getTag, getType, hashCode, inMemory, isFtnResultVar, isGlobal, isPure, isReferenced, isTemporary, isVariable, isVirtual, number, residency, setAccessibility, setAddressTaken, setChildParent, setName, setParent, setReferenced, setResidency, setScope, setTag, setType, setVisibility, toStringSpecial, visibility

Methods inherited from class scale.clef.Node

getChildren, setAnnotationLevel, setReportLevel, toString, toString, toStringChildren

Methods inherited from class scale.common.Root

addAnnotation, allAnnotations, allMatchingAnnotations, getAnnotation, getDisplayName, getDisplayString, getNodeCount, getNodeID, hasAnnotation, hasEqualAnnotation, removeAnnotation, removeAnnotations, toStringAnnotations, toStringClass

Methods inherited from class java.lang.Object

clone, equals, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ValueDecl

protected ValueDecl(java.lang.String name,
                    Type type,
                    Expression initialValue)

Create a ValueDecl with the specified name, type, and value.

Method Detail

visit

public void visit(Predicate p)

Description copied from class: Node

The visit() method is used to implement a visit 'pattern'.

Overrides:

visit in class Declaration

getValue

public Expression getValue()

setValue

public void setValue(Expression v)

createChildren

protected Vector createChildren()

Description copied from class: Node

Create the list of children for the node - each node that has children must implement this method. However, use getChildren() to actually get the children.

Overrides:

createChildren in class Node

Following copied from class: scale.clef.Node

Returns:

the list of children

getConstantValue

public java.lang.Object getConstantValue()

Description copied from class: Declaration

Return the constant value of the expression.

Overrides:

getConstantValue in class Declaration

Returns:

the constant value of the expression

See Also:

Lattice

isConst

public boolean isConst()

Returns:

true if the declaration is constant.