scale.clef.type
Class AtomicType

java.lang.Object
  |
  +--scale.common.Root
        |
        +--scale.clef.Node
              |
              +--scale.clef.type.Type
                    |
                    +--scale.clef.type.AtomicType

All Implemented Interfaces:

AnnotationInterface, DisplayNode, java.io.Serializable

Direct Known Subclasses:

NumericType, PointerType

public abstract class AtomicType

extends Type

This class represents types directly supported by (most) hardware (e.g., integers, reals, and pointers).

$Id: AtomicType.java,v 1.23 2002/01/03 21:44:10 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 interface scale.common.DisplayNode

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

Constructor Summary

AtomicType()

Method Summary

int	alignment(Machine machine) Calculate the alignment needed for this data type.
abstract int	bitSize() Return the number of bits required to represent the type.
boolean	isAtomicType() Return true if type represents a scaler value.
int	memorySize(Machine machine) Calculate how many addressable memory units are needed to represent the type.
void	visit(Predicate p) The visit() method is used to implement a visit 'pattern'.

Methods inherited from class scale.clef.type.Type

equivalent, finalize, getCompleteType, getCoreType, getDisplayColorHint, getDisplayShapeHint, getDisplayText, getPointedTo, getTag, getType, isAddressType, isAggregateType, isArrayType, isAttributeSet, isComplexType, isCompositeType, isConst, isIntegerType, isNamedType, isNumericType, isPointerType, isRealType, isSigned, isVoidType, isVolatile, nextVisit, number, setTag, setVisited, toString, toStringShort, visited

Methods inherited from class scale.clef.Node

createChildren, getChildren, getDecl, getParent, setAnnotationLevel, setParent, setReportLevel, toString, toStringChildren, toStringSpecial

Methods inherited from class scale.common.Root

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

Methods inherited from class java.lang.Object

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

Constructor Detail

AtomicType

public AtomicType()

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 Type

isAtomicType

public boolean isAtomicType()

Return true if type represents a scaler value.

Overrides:

isAtomicType in class Type

memorySize

public int memorySize(Machine machine)

Calculate how many addressable memory units are needed to represent the type.

Overrides:

memorySize in class Type

Parameters:

machine - is the machine-specific data machine

Returns:

the number of addressable memory units required to represent this type

alignment

public int alignment(Machine machine)

Calculate the alignment needed for this data type.

Overrides:

alignment in class Type

bitSize

public abstract int bitSize()

Return the number of bits required to represent the type.