001 /*
002 * Copyright 2004-2005 Sun Microsystems, Inc. All Rights Reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation. Sun designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Sun in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022 * CA 95054 USA or visit www.sun.com if you need additional information or
023 * have any questions.
024 */
025
026 package com.sun.tools.apt.mirror.declaration;
027
028
029 import java.util.Collection;
030 import java.util.ArrayList;
031
032 import com.sun.mirror.declaration.*;
033 import com.sun.mirror.util.DeclarationVisitor;
034 import com.sun.tools.apt.mirror.AptEnv;
035 import com.sun.tools.javac.code.Symbol;
036 import com.sun.tools.javac.code.Symbol.ClassSymbol;
037 import com.sun.tools.javac.code.Type;
038
039
040 /**
041 * Implementation of MemberDeclaration
042 */
043
044 public abstract class MemberDeclarationImpl extends DeclarationImpl
045 implements MemberDeclaration {
046
047 protected MemberDeclarationImpl(AptEnv env, Symbol sym) {
048 super(env, sym);
049 }
050
051
052 /**
053 * {@inheritDoc}
054 */
055 public TypeDeclaration getDeclaringType() {
056 ClassSymbol c = getDeclaringClassSymbol();
057 return (c == null)
058 ? null
059 : env.declMaker.getTypeDeclaration(c);
060 }
061
062 /**
063 * {@inheritDoc}
064 * For methods, constructors, and types.
065 */
066 public Collection<TypeParameterDeclaration> getFormalTypeParameters() {
067 ArrayList<TypeParameterDeclaration> res =
068 new ArrayList<TypeParameterDeclaration>();
069 for (Type t : sym.type.getTypeArguments()) {
070 res.add(env.declMaker.getTypeParameterDeclaration(t.tsym));
071 }
072 return res;
073 }
074
075 /**
076 * {@inheritDoc}
077 */
078 public void accept(DeclarationVisitor v) {
079 v.visitMemberDeclaration(this);
080 }
081
082
083 /**
084 * Returns the ClassSymbol of the declaring type,
085 * or null if this is a top-level type.
086 */
087 private ClassSymbol getDeclaringClassSymbol() {
088 return sym.owner.enclClass();
089 }
090
091 /**
092 * Returns the formal type parameters of a type, member or constructor
093 * as an angle-bracketed string. Each parameter consists of the simple
094 * type variable name and any bounds (with no implicit "extends Object"
095 * clause added). Type names are qualified.
096 * Returns "" if there are no type parameters.
097 */
098 protected static String typeParamsToString(AptEnv env, Symbol sym) {
099 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 }