src/share/classes/com/sun/tools/javac/code/Kinds.java

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1 /*
2 * Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package com.sun.tools.javac.code;
27
28
29 /** Internal symbol kinds, which distinguish between elements of
30 * different subclasses of Symbol. Symbol kinds are organized so they can be
31 * or'ed to sets.
32 *
33 * <p><b>This is NOT part of any API supported by Sun Microsystems. If
34 * you write code that depends on this, you do so at your own risk.
35 * This code and its internal interfaces are subject to change or
36 * deletion without notice.</b>
37 */
38 public class Kinds {
39
40 private Kinds() {} // uninstantiable
41
42 /** The empty set of kinds.
43 */
44 public final static int NIL = 0;
45
46 /** The kind of package symbols.
47 */
48 public final static int PCK = 1 << 0;
49
50 /** The kind of type symbols (classes, interfaces and type variables).
51 */
52 public final static int TYP = 1 << 1;
53
54 /** The kind of variable symbols.
55 */
56 public final static int VAR = 1 << 2;
57
58 /** The kind of values (variables or non-variable expressions), includes VAR.
59 */
60 public final static int VAL = (1 << 3) | VAR;
61
62 /** The kind of methods.
63 */
64 public final static int MTH = 1 << 4;
65
66 /** The error kind, which includes all other kinds.
67 */
68 public final static int ERR = (1 << 5) - 1;
69
70 /** The set of all kinds.
71 */
72 public final static int AllKinds = ERR;
73
74 /** Kinds for erroneous symbols that complement the above
75 */
76 public static final int ERRONEOUS = 1 << 6;
77 public static final int AMBIGUOUS = ERRONEOUS+1; // ambiguous reference
78 public static final int HIDDEN = ERRONEOUS+2; // hidden method or field
79 public static final int STATICERR = ERRONEOUS+3; // nonstatic member from static context
80 public static final int ABSENT_VAR = ERRONEOUS+4; // missing variable
81 public static final int WRONG_MTHS = ERRONEOUS+5; // methods with wrong arguments
82 public static final int WRONG_MTH = ERRONEOUS+6; // one method with wrong arguments
83 public static final int ABSENT_MTH = ERRONEOUS+7; // missing method
84 public static final int ABSENT_TYP = ERRONEOUS+8; // missing type
85 }

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