jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/code/Kinds.java@c75be5bc5283

     1 /*

     2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.tools.javac.code;

    28 import java.util.EnumSet;

    29 import java.util.Locale;

    31 import com.sun.source.tree.MemberReferenceTree;

    32 import com.sun.tools.javac.api.Formattable;

    33 import com.sun.tools.javac.api.Messages;

    34 import static com.sun.tools.javac.code.Flags.*;

    35 import static com.sun.tools.javac.code.TypeTags.*;

    37 /** Internal symbol kinds, which distinguish between elements of

    38  *  different subclasses of Symbol. Symbol kinds are organized so they can be

    39  *  or'ed to sets.

    40  *

    41  *  <p><b>This is NOT part of any supported API.

    42  *  If you write code that depends on this, you do so at your own risk.

    43  *  This code and its internal interfaces are subject to change or

    44  *  deletion without notice.</b>

    45  */

    46 public class Kinds {

    48     private Kinds() {} // uninstantiable

    50     /** The empty set of kinds.

    51      */

    52     public final static int NIL = 0;

    54     /** The kind of package symbols.

    55      */

    56     public final static int PCK = 1 << 0;

    58     /** The kind of type symbols (classes, interfaces and type variables).

    59      */

    60     public final static int TYP = 1 << 1;

    62     /** The kind of variable symbols.

    63      */

    64     public final static int VAR = 1 << 2;

    66     /** The kind of values (variables or non-variable expressions), includes VAR.

    67      */

    68     public final static int VAL = (1 << 3) | VAR;

    70     /** The kind of methods.

    71      */

    72     public final static int MTH = 1 << 4;

    74     /** The error kind, which includes all other kinds.

    75      */

    76     public final static int ERR = (1 << 5) - 1;

    78     /** The set of all kinds.

    79      */

    80     public final static int AllKinds = ERR;

    82     /** Kinds for erroneous symbols that complement the above

    83      */

    84     public static final int ERRONEOUS = 1 << 6;

    85     public static final int AMBIGUOUS    = ERRONEOUS+1; // ambiguous reference

    86     public static final int HIDDEN       = ERRONEOUS+2; // hidden method or field

    87     public static final int STATICERR    = ERRONEOUS+3; // nonstatic member from static context

    88     public static final int MISSING_ENCL = ERRONEOUS+4; // missing enclosing class

    89     public static final int ABSENT_VAR   = ERRONEOUS+5; // missing variable

    90     public static final int WRONG_MTHS   = ERRONEOUS+6; // methods with wrong arguments

    91     public static final int WRONG_MTH    = ERRONEOUS+7; // one method with wrong arguments

    92     public static final int ABSENT_MTH   = ERRONEOUS+8; // missing method

    93     public static final int ABSENT_TYP   = ERRONEOUS+9; // missing type

    95     public enum KindName implements Formattable {

    96         ANNOTATION("kindname.annotation"),

    97         CONSTRUCTOR("kindname.constructor"),

    98         INTERFACE("kindname.interface"),

    99         ENUM("kindname.enum"),

   100         STATIC("kindname.static"),

   101         TYPEVAR("kindname.type.variable"),

   102         BOUND("kindname.type.variable.bound"),

   103         VAR("kindname.variable"),

   104         VAL("kindname.value"),

   105         METHOD("kindname.method"),

   106         CLASS("kindname.class"),

   107         STATIC_INIT("kindname.static.init"),

   108         INSTANCE_INIT("kindname.instance.init"),

   109         PACKAGE("kindname.package");

   111         private String name;

   113         KindName(String name) {

   114             this.name = name;

   115         }

   117         public String toString() {

   118             return name;

   119         }

   121         public String getKind() {

   122             return "Kindname";

   123         }

   125         public String toString(Locale locale, Messages messages) {

   126             String s = toString();

   127             return messages.getLocalizedString(locale, "compiler.misc." + s);

   128         }

   129     }

   131     /** A KindName representing a given symbol kind

   132      */

   133     public static KindName kindName(int kind) {

   134         switch (kind) {

   135         case PCK: return KindName.PACKAGE;

   136         case TYP: return KindName.CLASS;

   137         case VAR: return KindName.VAR;

   138         case VAL: return KindName.VAL;

   139         case MTH: return KindName.METHOD;

   140             default : throw new AssertionError("Unexpected kind: "+kind);

   141         }

   142     }

   144     public static KindName kindName(MemberReferenceTree.ReferenceMode mode) {

   145         switch (mode) {

   146             case INVOKE: return KindName.METHOD;

   147             case NEW: return KindName.CONSTRUCTOR;

   148             default : throw new AssertionError("Unexpected mode: "+ mode);

   149         }

   150     }

   152     /** A KindName representing a given symbol

   153      */

   154     public static KindName kindName(Symbol sym) {

   155         switch (sym.getKind()) {

   156         case PACKAGE:

   157             return KindName.PACKAGE;

   159         case ENUM:

   160             return KindName.ENUM;

   162         case ANNOTATION_TYPE:

   163         case CLASS:

   164             return KindName.CLASS;

   166         case INTERFACE:

   167             return KindName.INTERFACE;

   169         case TYPE_PARAMETER:

   170             return KindName.TYPEVAR;

   172         case ENUM_CONSTANT:

   173         case FIELD:

   174         case PARAMETER:

   175         case LOCAL_VARIABLE:

   176         case EXCEPTION_PARAMETER:

   177         case RESOURCE_VARIABLE:

   178             return KindName.VAR;

   180         case CONSTRUCTOR:

   181             return KindName.CONSTRUCTOR;

   183         case METHOD:

   184             return KindName.METHOD;

   185         case STATIC_INIT:

   186             return KindName.STATIC_INIT;

   187         case INSTANCE_INIT:

   188             return KindName.INSTANCE_INIT;

   190         default:

   191             if (sym.kind == VAL)

   192                 // I don't think this can happen but it can't harm

   193                 // playing it safe --ahe

   194                 return KindName.VAL;

   195             else

   196                 throw new AssertionError("Unexpected kind: "+sym.getKind());

   197         }

   198     }

   200     /** A set of KindName(s) representing a set of symbol's kinds.

   201      */

   202     public static EnumSet<KindName> kindNames(int kind) {

   203         EnumSet<KindName> kinds = EnumSet.noneOf(KindName.class);

   204         if ((kind & VAL) != 0)

   205             kinds.add(((kind & VAL) == VAR) ? KindName.VAR : KindName.VAL);

   206         if ((kind & MTH) != 0) kinds.add(KindName.METHOD);

   207         if ((kind & TYP) != 0) kinds.add(KindName.CLASS);

   208         if ((kind & PCK) != 0) kinds.add(KindName.PACKAGE);

   209         return kinds;

   210     }

   212     /** A KindName representing the kind of a given class/interface type.

   213      */

   214     public static KindName typeKindName(Type t) {

   215         if (t.tag == TYPEVAR ||

   216             t.tag == CLASS && (t.tsym.flags() & COMPOUND) != 0)

   217             return KindName.BOUND;

   218         else if (t.tag == PACKAGE)

   219             return KindName.PACKAGE;

   220         else if ((t.tsym.flags_field & ANNOTATION) != 0)

   221             return KindName.ANNOTATION;

   222         else if ((t.tsym.flags_field & INTERFACE) != 0)

   223             return KindName.INTERFACE;

   224         else

   225             return KindName.CLASS;

   226     }

   228     /** A KindName representing the kind of a a missing symbol, given an

   229      *  error kind.

   230      * */

   231     public static KindName absentKind(int kind) {

   232         switch (kind) {

   233         case ABSENT_VAR:

   234             return KindName.VAR;

   235         case WRONG_MTHS: case WRONG_MTH: case ABSENT_MTH:

   236             return KindName.METHOD;

   237         case ABSENT_TYP:

   238             return KindName.CLASS;

   239         default:

   240             throw new AssertionError("Unexpected kind: "+kind);

   241         }

   242     }

   243 }

Mercurial > jdk8-mips64-public > langtools / file revision

src/share/classes/com/sun/tools/javac/code/Kinds.java@c75be5bc5283

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