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

Tue, 25 Jun 2013 16:12:53 +0100

author
vromero
date
Tue, 25 Jun 2013 16:12:53 +0100
changeset 1853
831467c4c6a7
parent 1850
6debfa63a4a1
child 2193
d4cbb671de1c
permissions
-rw-r--r--

8017104: javac should have a class for primitive types that inherits from Type
Reviewed-by: jjg

duke@1 1 /*
vromero@1850 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package com.sun.tools.javac.code;
duke@1 27
mcimadamore@80 28 import java.util.EnumSet;
mcimadamore@136 29 import java.util.Locale;
mcimadamore@80 30
mcimadamore@1352 31 import com.sun.source.tree.MemberReferenceTree;
mcimadamore@80 32 import com.sun.tools.javac.api.Formattable;
mcimadamore@136 33 import com.sun.tools.javac.api.Messages;
jjg@1357 34 import static com.sun.tools.javac.code.Flags.*;
jjg@1374 35 import static com.sun.tools.javac.code.TypeTag.CLASS;
jjg@1374 36 import static com.sun.tools.javac.code.TypeTag.PACKAGE;
jjg@1374 37 import static com.sun.tools.javac.code.TypeTag.TYPEVAR;
duke@1 38
duke@1 39 /** Internal symbol kinds, which distinguish between elements of
duke@1 40 * different subclasses of Symbol. Symbol kinds are organized so they can be
duke@1 41 * or'ed to sets.
duke@1 42 *
jjg@581 43 * <p><b>This is NOT part of any supported API.
jjg@581 44 * If you write code that depends on this, you do so at your own risk.
duke@1 45 * This code and its internal interfaces are subject to change or
duke@1 46 * deletion without notice.</b>
duke@1 47 */
duke@1 48 public class Kinds {
duke@1 49
duke@1 50 private Kinds() {} // uninstantiable
duke@1 51
duke@1 52 /** The empty set of kinds.
duke@1 53 */
duke@1 54 public final static int NIL = 0;
duke@1 55
duke@1 56 /** The kind of package symbols.
duke@1 57 */
duke@1 58 public final static int PCK = 1 << 0;
duke@1 59
duke@1 60 /** The kind of type symbols (classes, interfaces and type variables).
duke@1 61 */
duke@1 62 public final static int TYP = 1 << 1;
duke@1 63
duke@1 64 /** The kind of variable symbols.
duke@1 65 */
duke@1 66 public final static int VAR = 1 << 2;
duke@1 67
duke@1 68 /** The kind of values (variables or non-variable expressions), includes VAR.
duke@1 69 */
duke@1 70 public final static int VAL = (1 << 3) | VAR;
duke@1 71
duke@1 72 /** The kind of methods.
duke@1 73 */
duke@1 74 public final static int MTH = 1 << 4;
duke@1 75
vromero@1850 76 /** Poly kind, for deferred types.
vromero@1850 77 */
vromero@1850 78 public final static int POLY = 1 << 5;
vromero@1850 79
duke@1 80 /** The error kind, which includes all other kinds.
duke@1 81 */
vromero@1850 82 public final static int ERR = (1 << 6) - 1;
duke@1 83
duke@1 84 /** The set of all kinds.
duke@1 85 */
duke@1 86 public final static int AllKinds = ERR;
duke@1 87
duke@1 88 /** Kinds for erroneous symbols that complement the above
duke@1 89 */
vromero@1850 90 public static final int ERRONEOUS = 1 << 7;
duke@1 91 public static final int AMBIGUOUS = ERRONEOUS+1; // ambiguous reference
duke@1 92 public static final int HIDDEN = ERRONEOUS+2; // hidden method or field
duke@1 93 public static final int STATICERR = ERRONEOUS+3; // nonstatic member from static context
mcimadamore@1352 94 public static final int MISSING_ENCL = ERRONEOUS+4; // missing enclosing class
mcimadamore@1352 95 public static final int ABSENT_VAR = ERRONEOUS+5; // missing variable
mcimadamore@1352 96 public static final int WRONG_MTHS = ERRONEOUS+6; // methods with wrong arguments
mcimadamore@1352 97 public static final int WRONG_MTH = ERRONEOUS+7; // one method with wrong arguments
mcimadamore@1352 98 public static final int ABSENT_MTH = ERRONEOUS+8; // missing method
mcimadamore@1352 99 public static final int ABSENT_TYP = ERRONEOUS+9; // missing type
mcimadamore@80 100
mcimadamore@80 101 public enum KindName implements Formattable {
jjg@597 102 ANNOTATION("kindname.annotation"),
mcimadamore@80 103 CONSTRUCTOR("kindname.constructor"),
mcimadamore@80 104 INTERFACE("kindname.interface"),
mcimadamore@302 105 ENUM("kindname.enum"),
mcimadamore@80 106 STATIC("kindname.static"),
mcimadamore@80 107 TYPEVAR("kindname.type.variable"),
mcimadamore@80 108 BOUND("kindname.type.variable.bound"),
mcimadamore@80 109 VAR("kindname.variable"),
mcimadamore@80 110 VAL("kindname.value"),
mcimadamore@80 111 METHOD("kindname.method"),
mcimadamore@80 112 CLASS("kindname.class"),
mcimadamore@1085 113 STATIC_INIT("kindname.static.init"),
mcimadamore@1085 114 INSTANCE_INIT("kindname.instance.init"),
mcimadamore@80 115 PACKAGE("kindname.package");
mcimadamore@80 116
vromero@1442 117 private final String name;
mcimadamore@80 118
mcimadamore@80 119 KindName(String name) {
mcimadamore@80 120 this.name = name;
mcimadamore@80 121 }
mcimadamore@80 122
mcimadamore@80 123 public String toString() {
mcimadamore@80 124 return name;
mcimadamore@80 125 }
mcimadamore@80 126
mcimadamore@80 127 public String getKind() {
mcimadamore@80 128 return "Kindname";
mcimadamore@80 129 }
mcimadamore@80 130
mcimadamore@136 131 public String toString(Locale locale, Messages messages) {
mcimadamore@80 132 String s = toString();
mcimadamore@136 133 return messages.getLocalizedString(locale, "compiler.misc." + s);
mcimadamore@80 134 }
mcimadamore@80 135 }
mcimadamore@80 136
mcimadamore@80 137 /** A KindName representing a given symbol kind
mcimadamore@80 138 */
mcimadamore@80 139 public static KindName kindName(int kind) {
mcimadamore@80 140 switch (kind) {
mcimadamore@80 141 case PCK: return KindName.PACKAGE;
mcimadamore@80 142 case TYP: return KindName.CLASS;
mcimadamore@80 143 case VAR: return KindName.VAR;
mcimadamore@80 144 case VAL: return KindName.VAL;
mcimadamore@80 145 case MTH: return KindName.METHOD;
mcimadamore@80 146 default : throw new AssertionError("Unexpected kind: "+kind);
mcimadamore@80 147 }
mcimadamore@80 148 }
mcimadamore@80 149
mcimadamore@1352 150 public static KindName kindName(MemberReferenceTree.ReferenceMode mode) {
mcimadamore@1352 151 switch (mode) {
mcimadamore@1352 152 case INVOKE: return KindName.METHOD;
mcimadamore@1352 153 case NEW: return KindName.CONSTRUCTOR;
mcimadamore@1352 154 default : throw new AssertionError("Unexpected mode: "+ mode);
mcimadamore@1352 155 }
mcimadamore@1352 156 }
mcimadamore@1352 157
mcimadamore@80 158 /** A KindName representing a given symbol
mcimadamore@80 159 */
mcimadamore@80 160 public static KindName kindName(Symbol sym) {
mcimadamore@80 161 switch (sym.getKind()) {
mcimadamore@80 162 case PACKAGE:
mcimadamore@80 163 return KindName.PACKAGE;
mcimadamore@80 164
mcimadamore@80 165 case ENUM:
mcimadamore@302 166 return KindName.ENUM;
mcimadamore@302 167
mcimadamore@80 168 case ANNOTATION_TYPE:
mcimadamore@80 169 case CLASS:
mcimadamore@80 170 return KindName.CLASS;
mcimadamore@80 171
mcimadamore@302 172 case INTERFACE:
mcimadamore@302 173 return KindName.INTERFACE;
mcimadamore@302 174
mcimadamore@80 175 case TYPE_PARAMETER:
mcimadamore@80 176 return KindName.TYPEVAR;
mcimadamore@80 177
mcimadamore@80 178 case ENUM_CONSTANT:
mcimadamore@80 179 case FIELD:
mcimadamore@80 180 case PARAMETER:
mcimadamore@80 181 case LOCAL_VARIABLE:
mcimadamore@80 182 case EXCEPTION_PARAMETER:
jjg@899 183 case RESOURCE_VARIABLE:
mcimadamore@80 184 return KindName.VAR;
mcimadamore@80 185
mcimadamore@302 186 case CONSTRUCTOR:
mcimadamore@302 187 return KindName.CONSTRUCTOR;
mcimadamore@302 188
mcimadamore@80 189 case METHOD:
mcimadamore@1085 190 return KindName.METHOD;
mcimadamore@80 191 case STATIC_INIT:
mcimadamore@1085 192 return KindName.STATIC_INIT;
mcimadamore@80 193 case INSTANCE_INIT:
mcimadamore@1085 194 return KindName.INSTANCE_INIT;
mcimadamore@80 195
mcimadamore@80 196 default:
mcimadamore@80 197 if (sym.kind == VAL)
mcimadamore@80 198 // I don't think this can happen but it can't harm
mcimadamore@80 199 // playing it safe --ahe
mcimadamore@80 200 return KindName.VAL;
mcimadamore@80 201 else
mcimadamore@80 202 throw new AssertionError("Unexpected kind: "+sym.getKind());
mcimadamore@80 203 }
mcimadamore@80 204 }
mcimadamore@80 205
mcimadamore@80 206 /** A set of KindName(s) representing a set of symbol's kinds.
mcimadamore@80 207 */
mcimadamore@80 208 public static EnumSet<KindName> kindNames(int kind) {
mcimadamore@80 209 EnumSet<KindName> kinds = EnumSet.noneOf(KindName.class);
mcimadamore@80 210 if ((kind & VAL) != 0)
mcimadamore@80 211 kinds.add(((kind & VAL) == VAR) ? KindName.VAR : KindName.VAL);
mcimadamore@80 212 if ((kind & MTH) != 0) kinds.add(KindName.METHOD);
mcimadamore@80 213 if ((kind & TYP) != 0) kinds.add(KindName.CLASS);
mcimadamore@80 214 if ((kind & PCK) != 0) kinds.add(KindName.PACKAGE);
mcimadamore@80 215 return kinds;
mcimadamore@80 216 }
mcimadamore@80 217
mcimadamore@80 218 /** A KindName representing the kind of a given class/interface type.
mcimadamore@80 219 */
mcimadamore@80 220 public static KindName typeKindName(Type t) {
vromero@1853 221 if (t.hasTag(TYPEVAR) ||
vromero@1853 222 t.hasTag(CLASS) && (t.tsym.flags() & COMPOUND) != 0)
mcimadamore@80 223 return KindName.BOUND;
vromero@1853 224 else if (t.hasTag(PACKAGE))
mcimadamore@80 225 return KindName.PACKAGE;
mcimadamore@80 226 else if ((t.tsym.flags_field & ANNOTATION) != 0)
mcimadamore@80 227 return KindName.ANNOTATION;
mcimadamore@80 228 else if ((t.tsym.flags_field & INTERFACE) != 0)
mcimadamore@80 229 return KindName.INTERFACE;
mcimadamore@80 230 else
mcimadamore@80 231 return KindName.CLASS;
mcimadamore@80 232 }
mcimadamore@80 233
mcimadamore@80 234 /** A KindName representing the kind of a a missing symbol, given an
mcimadamore@80 235 * error kind.
mcimadamore@80 236 * */
mcimadamore@80 237 public static KindName absentKind(int kind) {
mcimadamore@80 238 switch (kind) {
mcimadamore@80 239 case ABSENT_VAR:
mcimadamore@80 240 return KindName.VAR;
mcimadamore@80 241 case WRONG_MTHS: case WRONG_MTH: case ABSENT_MTH:
mcimadamore@80 242 return KindName.METHOD;
mcimadamore@80 243 case ABSENT_TYP:
mcimadamore@80 244 return KindName.CLASS;
mcimadamore@80 245 default:
mcimadamore@80 246 throw new AssertionError("Unexpected kind: "+kind);
mcimadamore@80 247 }
mcimadamore@80 248 }
duke@1 249 }

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