scale.clef.type
Enum RefAttr

java.lang.Object
  java.lang.Enum<RefAttr>
      scale.clef.type.RefAttr

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<RefAttr>

public enum RefAttr
extends java.lang.Enum<RefAttr>

This enum specifies the attributes of a reference type - const, aligned, etc.

$Id$

Copyright 2008 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

This enum describes what attributes are associated with a type. Attributes are non-type information that is associated with a type because they can be associated with just a part of a type declaration.

See Also:

RefType

Enum Constant Summary

Aligned
For types whose alignment was specified.

Const
Indicates that instances of this type have a constant value.

None

Ordered
For types with substructures, this attribute indicates if the source language requires the data layout to preserve the order of substructures (declaration order is assumed).

Restrict
Marks a value which may not be changed by only by restricted means.

Traced
Supports Modula-3's traced data types.

VaList
For the type that represents the builtin type va_list.

Volatile
Marks a value which may be changed by something which a compiler cannot detect.

Method Summary

static RefAttr	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static RefAttr[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

None

public static final RefAttr None

Const

public static final RefAttr Const

Indicates that instances of this type have a constant value. By default, instances of a type are mutable.

One could reasonably argue that the immutability of a value is not a property (or attribute) of a type. However, C++'s typedef construct permits immutability to be included with the type.

Volatile

public static final RefAttr Volatile

Marks a value which may be changed by something which a compiler cannot detect.

Aligned

public static final RefAttr Aligned

For types whose alignment was specified.

VaList

public static final RefAttr VaList

For the type that represents the builtin type va_list.

Restrict

public static final RefAttr Restrict

Marks a value which may not be changed by only by restricted means.

Ordered

public static final RefAttr Ordered

For types with substructures, this attribute indicates if the source language requires the data layout to preserve the order of substructures (declaration order is assumed).

Traced

public static final RefAttr Traced

Supports Modula-3's traced data types.

Method Detail

values

public static RefAttr[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (RefAttr c : RefAttr.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static RefAttr valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null