1 /*
   2  * Copyright 2004 Sun Microsystems, Inc.  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.  Sun designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  22  * CA 95054 USA or visit www.sun.com if you need additional information or
  23  * have any questions.
  24  */
  25 
  26 package com.sun.tools.apt.mirror.declaration;
  27 
  28 
  29 import java.util.Collection;
  30 
  31 import com.sun.mirror.declaration.*;
  32 import com.sun.mirror.type.TypeMirror;
  33 import com.sun.mirror.util.DeclarationVisitor;
  34 import com.sun.tools.apt.mirror.AptEnv;
  35 import com.sun.tools.javac.code.*;
  36 import com.sun.tools.javac.code.Symbol.VarSymbol;
  37 
  38 
  39 /**
  40  * Implementation of ParameterDeclaration
  41  */
  42 
  43 public class ParameterDeclarationImpl extends DeclarationImpl
  44                                       implements ParameterDeclaration
  45 {
  46     protected VarSymbol sym;
  47 
  48 
  49     ParameterDeclarationImpl(AptEnv env, VarSymbol sym) {
  50         super(env, sym);
  51         this.sym = sym;
  52     }
  53 
  54 
  55     /**
  56      * Returns the simple name of the parameter.
  57      */
  58     public String toString() {
  59         return getType() + " " + sym.name;
  60     }
  61 
  62     /**
  63      * {@inheritDoc}
  64      */
  65     public boolean equals(Object obj) {
  66         // Neither ParameterDeclarationImpl objects nor their symbols
  67         // are cached by the current implementation, so check symbol
  68         // owners and names.
  69 
  70         if (obj instanceof ParameterDeclarationImpl) {
  71             ParameterDeclarationImpl that = (ParameterDeclarationImpl) obj;
  72             return sym.owner == that.sym.owner &&
  73                    sym.name == that.sym.name &&
  74                    env == that.env;
  75         } else {
  76             return false;
  77         }
  78     }
  79 
  80     /**
  81      * {@inheritDoc}
  82      */
  83     public int hashCode() {
  84         return sym.owner.hashCode() + sym.name.hashCode() + env.hashCode();
  85     }
  86 
  87     /**
  88      * {@inheritDoc}
  89      */
  90     public TypeMirror getType() {
  91         return env.typeMaker.getType(sym.type);
  92     }
  93 
  94     /**
  95      * {@inheritDoc}
  96      */
  97     public void accept(DeclarationVisitor v) {
  98         v.visitParameterDeclaration(this);
  99     }
 100 }