1 /*
   2  * Copyright (c) 2017, 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 com.sun.tools.javac.code;
  27 
  28 import com.sun.tools.javac.code.Type.MethodType;
  29 import com.sun.tools.javac.util.List;
  30 import com.sun.tools.javac.util.Name;
  31 import com.sun.tools.javac.util.Names;
  32 
  33 import java.util.function.Function;
  34 
  35 public class Accessors {
  36 
  37     public enum Kind {
  38         GET(names -> names.get) {
  39             @Override
  40             public Type accessorType(Symtab syms, Type type) {
  41                 return new MethodType(List.nil(), type, List.nil(), syms.methodClass);
  42             }
  43         },
  44         SET(names -> names.set) {
  45             @Override
  46             public Type accessorType(Symtab syms, Type type) {
  47                 return new MethodType(List.of(type), syms.voidType, List.nil(), syms.methodClass);
  48             }
  49         };
  50 
  51         private final Function<Names, Name> nameFunc;
  52 
  53         Kind(Function<Names, Name> nameFunc) {
  54             this.nameFunc = nameFunc;
  55         }
  56 
  57         public Name name(Names names) {
  58             return nameFunc.apply(names);
  59         }
  60 
  61         public abstract Type accessorType(Symtab syms, Type type);
  62     }
  63 
  64     public static Kind fromName(Name name) {
  65         for (Kind k : Kind.values()) {
  66             if (k.name(name.table.names).equals(name)) {
  67                 return k;
  68             }
  69         }
  70         return null;
  71     }
  72 }