| 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 | /** An interface for type tag values, which distinguish between different |
| 30 | * sorts of types. |
| 31 | * |
| 32 | * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
| 33 | * you write code that depends on this, you do so at your own risk. |
| 34 | * This code and its internal interfaces are subject to change or |
| 35 | * deletion without notice.</b> |
| 36 | */ |
| 37 | public class TypeTags { |
| 38 | |
| 39 | private TypeTags() {} // uninstantiable |
| 40 | |
| 41 | /** The tag of the basic type `byte'. |
| 42 | */ |
| 43 | public static final int BYTE = 1; |
| 44 | |
| 45 | /** The tag of the basic type `char'. |
| 46 | */ |
| 47 | public static final int CHAR = BYTE+1; |
| 48 | |
| 49 | /** The tag of the basic type `short'. |
| 50 | */ |
| 51 | public static final int SHORT = CHAR+1; |
| 52 | |
| 53 | /** The tag of the basic type `int'. |
| 54 | */ |
| 55 | public static final int INT = SHORT+1; |
| 56 | |
| 57 | /** The tag of the basic type `long'. |
| 58 | */ |
| 59 | public static final int LONG = INT+1; |
| 60 | |
| 61 | /** The tag of the basic type `float'. |
| 62 | */ |
| 63 | public static final int FLOAT = LONG+1; |
| 64 | |
| 65 | /** The tag of the basic type `double'. |
| 66 | */ |
| 67 | public static final int DOUBLE = FLOAT+1; |
| 68 | |
| 69 | /** The tag of the basic type `boolean'. |
| 70 | */ |
| 71 | public static final int BOOLEAN = DOUBLE+1; |
| 72 | |
| 73 | /** The tag of the type `void'. |
| 74 | */ |
| 75 | public static final int VOID = BOOLEAN+1; |
| 76 | |
| 77 | /** The tag of all class and interface types. |
| 78 | */ |
| 79 | public static final int CLASS = VOID+1; |
| 80 | |
| 81 | /** The tag of all array types. |
| 82 | */ |
| 83 | public static final int ARRAY = CLASS+1; |
| 84 | |
| 85 | /** The tag of all (monomorphic) method types. |
| 86 | */ |
| 87 | public static final int METHOD = ARRAY+1; |
| 88 | |
| 89 | /** The tag of all package "types". |
| 90 | */ |
| 91 | public static final int PACKAGE = METHOD+1; |
| 92 | |
| 93 | /** The tag of all (source-level) type variables. |
| 94 | */ |
| 95 | public static final int TYPEVAR = PACKAGE+1; |
| 96 | |
| 97 | /** The tag of all type arguments. |
| 98 | */ |
| 99 | public static final int WILDCARD = TYPEVAR+1; |
| 100 | |
| 101 | /** The tag of all polymorphic (method-) types. |
| 102 | */ |
| 103 | public static final int FORALL = WILDCARD+1; |
| 104 | |
| 105 | /** The tag of the bottom type <null>. |
| 106 | */ |
| 107 | public static final int BOT = FORALL+1; |
| 108 | |
| 109 | /** The tag of a missing type. |
| 110 | */ |
| 111 | public static final int NONE = BOT+1; |
| 112 | |
| 113 | /** The tag of the error type. |
| 114 | */ |
| 115 | public static final int ERROR = NONE+1; |
| 116 | |
| 117 | /** The tag of an unknown type |
| 118 | */ |
| 119 | public static final int UNKNOWN = ERROR+1; |
| 120 | |
| 121 | /** The tag of all instantiatable type variables. |
| 122 | */ |
| 123 | public static final int UNDETVAR = UNKNOWN+1; |
| 124 | |
| 125 | /** The number of type tags. |
| 126 | */ |
| 127 | public static final int TypeTagCount = UNDETVAR+1; |
| 128 | |
| 129 | /** The maximum tag of a basic type. |
| 130 | */ |
| 131 | public static final int lastBaseTag = BOOLEAN; |
| 132 | |
| 133 | /** The minimum tag of a partial type |
| 134 | */ |
| 135 | public static final int firstPartialTag = ERROR; |
| 136 | } |