1 /*
   2  * Copyright (c) 2003, 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 sun.reflect.generics.scope;
  27 
  28 import java.lang.reflect.Constructor;
  29 
  30 
  31 /**
  32  * This class represents the scope containing the type variables of
  33  * a constructor.
  34  */
  35 public class ConstructorScope extends AbstractScope<Constructor<?>> {
  36 
  37     // constructor is private to enforce use of factory method
  38     private ConstructorScope(Constructor<?> c){
  39         super(c);
  40     }
  41 
  42     // utility method; computes enclosing class, from which we can
  43     // derive enclosing scope.
  44     private Class<?> getEnclosingClass(){
  45         return getRecvr().getDeclaringClass();
  46     }
  47 
  48     /**
  49      * Overrides the abstract method in the superclass.
  50      * @return the enclosing scope
  51      */
  52     protected Scope computeEnclosingScope() {
  53         // the enclosing scope of a (generic) constructor is the scope of the
  54         // class in which it was declared.
  55         return ClassScope.make(getEnclosingClass());
  56     }
  57 
  58     /**
  59      * Factory method. Takes a {@code Constructor} object and creates a
  60      * scope for it.
  61      * @param c - A Constructor whose scope we want to obtain
  62      * @return The type-variable scope for the constructor m
  63      */
  64     public static ConstructorScope make(Constructor<?> c) {
  65         return new ConstructorScope(c);
  66     }
  67 }