1 /*

     2  * Copyright (c) 2004, 2005, 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.apt.mirror.declaration;

    27 

    28 

    29 import java.util.Collection;

    30 import java.util.ArrayList;

    31 

    32 import com.sun.mirror.declaration.*;

    33 import com.sun.mirror.util.DeclarationVisitor;

    34 import com.sun.tools.apt.mirror.AptEnv;

    35 import com.sun.tools.javac.code.Symbol;

    36 import com.sun.tools.javac.code.Symbol.ClassSymbol;

    37 import com.sun.tools.javac.code.Type;

    38 

    39 

    40 /**

    41  * Implementation of MemberDeclaration

    42  */

    43 @SuppressWarnings("deprecation")

    44 public abstract class MemberDeclarationImpl extends DeclarationImpl

    45                                             implements MemberDeclaration {

    46 

    47     protected MemberDeclarationImpl(AptEnv env, Symbol sym) {

    48         super(env, sym);

    49     }

    50 

    51 

    52     /**

    53      * {@inheritDoc}

    54      */

    55     public TypeDeclaration getDeclaringType() {

    56         ClassSymbol c = getDeclaringClassSymbol();

    57         return (c == null)

    58             ? null

    59             : env.declMaker.getTypeDeclaration(c);

    60     }

    61 

    62     /**

    63      * {@inheritDoc}

    64      * For methods, constructors, and types.

    65      */

    66     public Collection<TypeParameterDeclaration> getFormalTypeParameters() {

    67         ArrayList<TypeParameterDeclaration> res =

    68             new ArrayList<TypeParameterDeclaration>();

    69         for (Type t : sym.type.getTypeArguments()) {

    70             res.add(env.declMaker.getTypeParameterDeclaration(t.tsym));

    71         }

    72         return res;

    73     }

    74 

    75     /**

    76      * {@inheritDoc}

    77      */

    78     public void accept(DeclarationVisitor v) {

    79         v.visitMemberDeclaration(this);

    80     }

    81 

    82 

    83     /**

    84      * Returns the ClassSymbol of the declaring type,

    85      * or null if this is a top-level type.

    86      */

    87     private ClassSymbol getDeclaringClassSymbol() {

    88         return sym.owner.enclClass();

    89     }

    90 

    91     /**

    92      * Returns the formal type parameters of a type, member or constructor

    93      * as an angle-bracketed string.  Each parameter consists of the simple

    94      * type variable name and any bounds (with no implicit "extends Object"

    95      * clause added).  Type names are qualified.

    96      * Returns "" if there are no type parameters.

    97      */

    98     protected static String typeParamsToString(AptEnv env, Symbol sym) {

    99         if (sym.type.getTypeArguments().isEmpty()) {

   100             return "";

   101         }

   102         StringBuilder s = new StringBuilder();

   103         for (Type t : sym.type.getTypeArguments()) {

   104             Type.TypeVar tv = (Type.TypeVar) t;

   105             s.append(s.length() == 0 ? "<" : ", ")

   106              .append(TypeParameterDeclarationImpl.toString(env, tv));

   107         }

   108         s.append(">");

   109         return s.toString();

   110     }

   111 }