| /* |
| * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.javac.code; |
| |
| import java.util.EnumSet; |
| import java.util.Locale; |
| |
| import com.sun.source.tree.MemberReferenceTree; |
| import com.sun.tools.javac.api.Formattable; |
| import com.sun.tools.javac.api.Messages; |
| import static com.sun.tools.javac.code.Flags.*; |
| import static com.sun.tools.javac.code.TypeTag.CLASS; |
| import static com.sun.tools.javac.code.TypeTag.PACKAGE; |
| import static com.sun.tools.javac.code.TypeTag.TYPEVAR; |
| |
| /** Internal symbol kinds, which distinguish between elements of |
| * different subclasses of Symbol. Symbol kinds are organized so they can be |
| * or'ed to sets. |
| * |
| * <p><b>This is NOT part of any supported API. |
| * If you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b> |
| */ |
| public class Kinds { |
| |
| private Kinds() {} // uninstantiable |
| |
| /** The empty set of kinds. |
| */ |
| public final static int NIL = 0; |
| |
| /** The kind of package symbols. |
| */ |
| public final static int PCK = 1 << 0; |
| |
| /** The kind of type symbols (classes, interfaces and type variables). |
| */ |
| public final static int TYP = 1 << 1; |
| |
| /** The kind of variable symbols. |
| */ |
| public final static int VAR = 1 << 2; |
| |
| /** The kind of values (variables or non-variable expressions), includes VAR. |
| */ |
| public final static int VAL = (1 << 3) | VAR; |
| |
| /** The kind of methods. |
| */ |
| public final static int MTH = 1 << 4; |
| |
| /** Poly kind, for deferred types. |
| */ |
| public final static int POLY = 1 << 5; |
| |
| /** The error kind, which includes all other kinds. |
| */ |
| public final static int ERR = (1 << 6) - 1; |
| |
| /** The set of all kinds. |
| */ |
| public final static int AllKinds = ERR; |
| |
| /** Kinds for erroneous symbols that complement the above |
| */ |
| public static final int ERRONEOUS = 1 << 7; |
| public static final int AMBIGUOUS = ERRONEOUS + 1; // ambiguous reference |
| public static final int HIDDEN = ERRONEOUS + 2; // hidden method or field |
| public static final int STATICERR = ERRONEOUS + 3; // nonstatic member from static context |
| public static final int MISSING_ENCL = ERRONEOUS + 4; // missing enclosing class |
| public static final int ABSENT_VAR = ERRONEOUS + 5; // missing variable |
| public static final int WRONG_MTHS = ERRONEOUS + 6; // methods with wrong arguments |
| public static final int WRONG_MTH = ERRONEOUS + 7; // one method with wrong arguments |
| public static final int ABSENT_MTH = ERRONEOUS + 8; // missing method |
| public static final int ABSENT_TYP = ERRONEOUS + 9; // missing type |
| public static final int WRONG_STATICNESS = ERRONEOUS + 10; // wrong staticness for method references |
| |
| public enum KindName implements Formattable { |
| ANNOTATION("kindname.annotation"), |
| CONSTRUCTOR("kindname.constructor"), |
| INTERFACE("kindname.interface"), |
| ENUM("kindname.enum"), |
| STATIC("kindname.static"), |
| TYPEVAR("kindname.type.variable"), |
| BOUND("kindname.type.variable.bound"), |
| VAR("kindname.variable"), |
| VAL("kindname.value"), |
| METHOD("kindname.method"), |
| CLASS("kindname.class"), |
| STATIC_INIT("kindname.static.init"), |
| INSTANCE_INIT("kindname.instance.init"), |
| PACKAGE("kindname.package"); |
| |
| private final String name; |
| |
| KindName(String name) { |
| this.name = name; |
| } |
| |
| public String toString() { |
| return name; |
| } |
| |
| public String getKind() { |
| return "Kindname"; |
| } |
| |
| public String toString(Locale locale, Messages messages) { |
| String s = toString(); |
| return messages.getLocalizedString(locale, "compiler.misc." + s); |
| } |
| } |
| |
| /** A KindName representing a given symbol kind |
| */ |
| public static KindName kindName(int kind) { |
| switch (kind) { |
| case PCK: return KindName.PACKAGE; |
| case TYP: return KindName.CLASS; |
| case VAR: return KindName.VAR; |
| case VAL: return KindName.VAL; |
| case MTH: return KindName.METHOD; |
| default : throw new AssertionError("Unexpected kind: "+kind); |
| } |
| } |
| |
| public static KindName kindName(MemberReferenceTree.ReferenceMode mode) { |
| switch (mode) { |
| case INVOKE: return KindName.METHOD; |
| case NEW: return KindName.CONSTRUCTOR; |
| default : throw new AssertionError("Unexpected mode: "+ mode); |
| } |
| } |
| |
| /** A KindName representing a given symbol |
| */ |
| public static KindName kindName(Symbol sym) { |
| switch (sym.getKind()) { |
| case PACKAGE: |
| return KindName.PACKAGE; |
| |
| case ENUM: |
| return KindName.ENUM; |
| |
| case ANNOTATION_TYPE: |
| case CLASS: |
| return KindName.CLASS; |
| |
| case INTERFACE: |
| return KindName.INTERFACE; |
| |
| case TYPE_PARAMETER: |
| return KindName.TYPEVAR; |
| |
| case ENUM_CONSTANT: |
| case FIELD: |
| case PARAMETER: |
| case LOCAL_VARIABLE: |
| case EXCEPTION_PARAMETER: |
| case RESOURCE_VARIABLE: |
| return KindName.VAR; |
| |
| case CONSTRUCTOR: |
| return KindName.CONSTRUCTOR; |
| |
| case METHOD: |
| return KindName.METHOD; |
| case STATIC_INIT: |
| return KindName.STATIC_INIT; |
| case INSTANCE_INIT: |
| return KindName.INSTANCE_INIT; |
| |
| default: |
| if (sym.kind == VAL) |
| // I don't think this can happen but it can't harm |
| // playing it safe --ahe |
| return KindName.VAL; |
| else |
| throw new AssertionError("Unexpected kind: "+sym.getKind()); |
| } |
| } |
| |
| /** A set of KindName(s) representing a set of symbol's kinds. |
| */ |
| public static EnumSet<KindName> kindNames(int kind) { |
| EnumSet<KindName> kinds = EnumSet.noneOf(KindName.class); |
| if ((kind & VAL) != 0) |
| kinds.add(((kind & VAL) == VAR) ? KindName.VAR : KindName.VAL); |
| if ((kind & MTH) != 0) kinds.add(KindName.METHOD); |
| if ((kind & TYP) != 0) kinds.add(KindName.CLASS); |
| if ((kind & PCK) != 0) kinds.add(KindName.PACKAGE); |
| return kinds; |
| } |
| |
| /** A KindName representing the kind of a given class/interface type. |
| */ |
| public static KindName typeKindName(Type t) { |
| if (t.hasTag(TYPEVAR) || |
| t.hasTag(CLASS) && (t.tsym.flags() & COMPOUND) != 0) |
| return KindName.BOUND; |
| else if (t.hasTag(PACKAGE)) |
| return KindName.PACKAGE; |
| else if ((t.tsym.flags_field & ANNOTATION) != 0) |
| return KindName.ANNOTATION; |
| else if ((t.tsym.flags_field & INTERFACE) != 0) |
| return KindName.INTERFACE; |
| else |
| return KindName.CLASS; |
| } |
| |
| /** A KindName representing the kind of a missing symbol, given an |
| * error kind. |
| * */ |
| public static KindName absentKind(int kind) { |
| switch (kind) { |
| case ABSENT_VAR: |
| return KindName.VAR; |
| case WRONG_MTHS: case WRONG_MTH: case ABSENT_MTH: case WRONG_STATICNESS: |
| return KindName.METHOD; |
| case ABSENT_TYP: |
| return KindName.CLASS; |
| default: |
| throw new AssertionError("Unexpected kind: "+kind); |
| } |
| } |
| } |
