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    1   /*
    2    * Copyright (c) 2005, 2011, 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    */
   25   
   26   package javax.lang.model.type;
   27   
   28   
   29   /**
   30    * The kind of a type mirror.
   31    *
   32    * <p>Note that it is possible additional type kinds will be added to
   33    * accommodate new, currently unknown, language structures added to
   34    * future versions of the Java&trade; programming language.
   35    *
   36    * @author Joseph D. Darcy
   37    * @author Scott Seligman
   38    * @author Peter von der Ah&eacute;
   39    * @see TypeMirror
   40    * @since 1.6
   41    */
   42   public enum TypeKind {
   43       /**
   44        * The primitive type {@code boolean}.
   45        */
   46       BOOLEAN,
   47   
   48       /**
   49        * The primitive type {@code byte}.
   50        */
   51       BYTE,
   52   
   53       /**
   54        * The primitive type {@code short}.
   55        */
   56       SHORT,
   57   
   58       /**
   59        * The primitive type {@code int}.
   60        */
   61       INT,
   62   
   63       /**
   64        * The primitive type {@code long}.
   65        */
   66       LONG,
   67   
   68       /**
   69        * The primitive type {@code char}.
   70        */
   71       CHAR,
   72   
   73       /**
   74        * The primitive type {@code float}.
   75        */
   76       FLOAT,
   77   
   78       /**
   79        * The primitive type {@code double}.
   80        */
   81       DOUBLE,
   82   
   83       /**
   84        * The pseudo-type corresponding to the keyword {@code void}.
   85        * @see NoType
   86        */
   87       VOID,
   88   
   89       /**
   90        * A pseudo-type used where no actual type is appropriate.
   91        * @see NoType
   92        */
   93       NONE,
   94   
   95       /**
   96        * The null type.
   97        */
   98       NULL,
   99   
  100       /**
  101        * An array type.
  102        */
  103       ARRAY,
  104   
  105       /**
  106        * A class or interface type.
  107        */
  108       DECLARED,
  109   
  110       /**
  111        * A class or interface type that could not be resolved.
  112        */
  113       ERROR,
  114   
  115       /**
  116        * A type variable.
  117        */
  118       TYPEVAR,
  119   
  120       /**
  121        * A wildcard type argument.
  122        */
  123       WILDCARD,
  124   
  125       /**
  126        * A pseudo-type corresponding to a package element.
  127        * @see NoType
  128        */
  129       PACKAGE,
  130   
  131       /**
  132        * A method, constructor, or initializer.
  133        */
  134       EXECUTABLE,
  135   
  136       /**
  137        * An implementation-reserved type.
  138        * This is not the type you are looking for.
  139        */
  140       OTHER,
  141   
  142       /**
  143         * A union type.
  144         *
  145         * @since 1.7
  146         */
  147       UNION;
  148   
  149       /**
  150        * Returns {@code true} if this kind corresponds to a primitive
  151        * type and {@code false} otherwise.
  152        * @return {@code true} if this kind corresponds to a primitive type
  153        */
  154       public boolean isPrimitive() {
  155           switch(this) {
  156           case BOOLEAN:
  157           case BYTE:
  158           case SHORT:
  159           case INT:
  160           case LONG:
  161           case CHAR:
  162           case FLOAT:
  163           case DOUBLE:
  164               return true;
  165   
  166           default:
  167               return false;
  168           }
  169       }
  170   }

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