duke@1: /* jjg@899: * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. duke@1: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@1: * duke@1: * This code is free software; you can redistribute it and/or modify it duke@1: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this duke@1: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. duke@1: * duke@1: * This code is distributed in the hope that it will be useful, but WITHOUT duke@1: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@1: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@1: * version 2 for more details (a copy is included in the LICENSE file that duke@1: * accompanied this code). duke@1: * duke@1: * You should have received a copy of the GNU General Public License version duke@1: * 2 along with this work; if not, write to the Free Software Foundation, duke@1: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@1: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. duke@1: */ duke@1: duke@1: package com.sun.tools.javac.code; duke@1: mcimadamore@80: import java.util.EnumSet; mcimadamore@136: import java.util.Locale; mcimadamore@80: mcimadamore@80: import com.sun.tools.javac.api.Formattable; mcimadamore@136: import com.sun.tools.javac.api.Messages; mcimadamore@80: mcimadamore@80: import static com.sun.tools.javac.code.TypeTags.*; mcimadamore@80: import static com.sun.tools.javac.code.Flags.*; duke@1: duke@1: /** Internal symbol kinds, which distinguish between elements of duke@1: * different subclasses of Symbol. Symbol kinds are organized so they can be duke@1: * or'ed to sets. duke@1: * jjg@581: *
This is NOT part of any supported API.
jjg@581: * If you write code that depends on this, you do so at your own risk.
duke@1: * This code and its internal interfaces are subject to change or
duke@1: * deletion without notice.
duke@1: */
duke@1: public class Kinds {
duke@1:
duke@1: private Kinds() {} // uninstantiable
duke@1:
duke@1: /** The empty set of kinds.
duke@1: */
duke@1: public final static int NIL = 0;
duke@1:
duke@1: /** The kind of package symbols.
duke@1: */
duke@1: public final static int PCK = 1 << 0;
duke@1:
duke@1: /** The kind of type symbols (classes, interfaces and type variables).
duke@1: */
duke@1: public final static int TYP = 1 << 1;
duke@1:
duke@1: /** The kind of variable symbols.
duke@1: */
duke@1: public final static int VAR = 1 << 2;
duke@1:
duke@1: /** The kind of values (variables or non-variable expressions), includes VAR.
duke@1: */
duke@1: public final static int VAL = (1 << 3) | VAR;
duke@1:
duke@1: /** The kind of methods.
duke@1: */
duke@1: public final static int MTH = 1 << 4;
duke@1:
duke@1: /** The error kind, which includes all other kinds.
duke@1: */
duke@1: public final static int ERR = (1 << 5) - 1;
duke@1:
duke@1: /** The set of all kinds.
duke@1: */
duke@1: public final static int AllKinds = ERR;
duke@1:
duke@1: /** Kinds for erroneous symbols that complement the above
duke@1: */
duke@1: public static final int ERRONEOUS = 1 << 6;
duke@1: public static final int AMBIGUOUS = ERRONEOUS+1; // ambiguous reference
duke@1: public static final int HIDDEN = ERRONEOUS+2; // hidden method or field
duke@1: public static final int STATICERR = ERRONEOUS+3; // nonstatic member from static context
duke@1: public static final int ABSENT_VAR = ERRONEOUS+4; // missing variable
duke@1: public static final int WRONG_MTHS = ERRONEOUS+5; // methods with wrong arguments
duke@1: public static final int WRONG_MTH = ERRONEOUS+6; // one method with wrong arguments
duke@1: public static final int ABSENT_MTH = ERRONEOUS+7; // missing method
duke@1: public static final int ABSENT_TYP = ERRONEOUS+8; // missing type
mcimadamore@80:
mcimadamore@80: public enum KindName implements Formattable {
jjg@597: ANNOTATION("kindname.annotation"),
mcimadamore@80: CONSTRUCTOR("kindname.constructor"),
mcimadamore@80: INTERFACE("kindname.interface"),
mcimadamore@302: ENUM("kindname.enum"),
mcimadamore@80: STATIC("kindname.static"),
mcimadamore@80: TYPEVAR("kindname.type.variable"),
mcimadamore@80: BOUND("kindname.type.variable.bound"),
mcimadamore@80: VAR("kindname.variable"),
mcimadamore@80: VAL("kindname.value"),
mcimadamore@80: METHOD("kindname.method"),
mcimadamore@80: CLASS("kindname.class"),
mcimadamore@1085: STATIC_INIT("kindname.static.init"),
mcimadamore@1085: INSTANCE_INIT("kindname.instance.init"),
mcimadamore@80: PACKAGE("kindname.package");
mcimadamore@80:
mcimadamore@80: private String name;
mcimadamore@80:
mcimadamore@80: KindName(String name) {
mcimadamore@80: this.name = name;
mcimadamore@80: }
mcimadamore@80:
mcimadamore@80: public String toString() {
mcimadamore@80: return name;
mcimadamore@80: }
mcimadamore@80:
mcimadamore@80: public String getKind() {
mcimadamore@80: return "Kindname";
mcimadamore@80: }
mcimadamore@80:
mcimadamore@136: public String toString(Locale locale, Messages messages) {
mcimadamore@80: String s = toString();
mcimadamore@136: return messages.getLocalizedString(locale, "compiler.misc." + s);
mcimadamore@80: }
mcimadamore@80: }
mcimadamore@80:
mcimadamore@80: /** A KindName representing a given symbol kind
mcimadamore@80: */
mcimadamore@80: public static KindName kindName(int kind) {
mcimadamore@80: switch (kind) {
mcimadamore@80: case PCK: return KindName.PACKAGE;
mcimadamore@80: case TYP: return KindName.CLASS;
mcimadamore@80: case VAR: return KindName.VAR;
mcimadamore@80: case VAL: return KindName.VAL;
mcimadamore@80: case MTH: return KindName.METHOD;
mcimadamore@80: default : throw new AssertionError("Unexpected kind: "+kind);
mcimadamore@80: }
mcimadamore@80: }
mcimadamore@80:
mcimadamore@80: /** A KindName representing a given symbol
mcimadamore@80: */
mcimadamore@80: public static KindName kindName(Symbol sym) {
mcimadamore@80: switch (sym.getKind()) {
mcimadamore@80: case PACKAGE:
mcimadamore@80: return KindName.PACKAGE;
mcimadamore@80:
mcimadamore@80: case ENUM:
mcimadamore@302: return KindName.ENUM;
mcimadamore@302:
mcimadamore@80: case ANNOTATION_TYPE:
mcimadamore@80: case CLASS:
mcimadamore@80: return KindName.CLASS;
mcimadamore@80:
mcimadamore@302: case INTERFACE:
mcimadamore@302: return KindName.INTERFACE;
mcimadamore@302:
mcimadamore@80: case TYPE_PARAMETER:
mcimadamore@80: return KindName.TYPEVAR;
mcimadamore@80:
mcimadamore@80: case ENUM_CONSTANT:
mcimadamore@80: case FIELD:
mcimadamore@80: case PARAMETER:
mcimadamore@80: case LOCAL_VARIABLE:
mcimadamore@80: case EXCEPTION_PARAMETER:
jjg@899: case RESOURCE_VARIABLE:
mcimadamore@80: return KindName.VAR;
mcimadamore@80:
mcimadamore@302: case CONSTRUCTOR:
mcimadamore@302: return KindName.CONSTRUCTOR;
mcimadamore@302:
mcimadamore@80: case METHOD:
mcimadamore@1085: return KindName.METHOD;
mcimadamore@80: case STATIC_INIT:
mcimadamore@1085: return KindName.STATIC_INIT;
mcimadamore@80: case INSTANCE_INIT:
mcimadamore@1085: return KindName.INSTANCE_INIT;
mcimadamore@80:
mcimadamore@80: default:
mcimadamore@80: if (sym.kind == VAL)
mcimadamore@80: // I don't think this can happen but it can't harm
mcimadamore@80: // playing it safe --ahe
mcimadamore@80: return KindName.VAL;
mcimadamore@80: else
mcimadamore@80: throw new AssertionError("Unexpected kind: "+sym.getKind());
mcimadamore@80: }
mcimadamore@80: }
mcimadamore@80:
mcimadamore@80: /** A set of KindName(s) representing a set of symbol's kinds.
mcimadamore@80: */
mcimadamore@80: public static EnumSet