| /* |
| * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.codemodel.internal; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * Represents a wildcard type like "? extends Foo". |
| * |
| * <p> |
| * Instances of this class can be obtained from {@link JClass#wildcard()} |
| * |
| * TODO: extend this to cover "? super Integer". |
| * |
| * <p> |
| * Our modeling of types are starting to look really ugly. |
| * ideally it should have been done somewhat like APT, |
| * but it's too late now. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| final class JTypeWildcard extends JClass { |
| |
| private final JClass bound; |
| |
| JTypeWildcard(JClass bound) { |
| super(bound.owner()); |
| this.bound = bound; |
| } |
| |
| public String name() { |
| return "? extends "+bound.name(); |
| } |
| |
| public String fullName() { |
| return "? extends "+bound.fullName(); |
| } |
| |
| public JPackage _package() { |
| return null; |
| } |
| |
| /** |
| * Returns the class bound of this variable. |
| * |
| * <p> |
| * If no bound is given, this method returns {@link Object}. |
| */ |
| public JClass _extends() { |
| if(bound!=null) |
| return bound; |
| else |
| return owner().ref(Object.class); |
| } |
| |
| /** |
| * Returns the interface bounds of this variable. |
| */ |
| public Iterator<JClass> _implements() { |
| return bound._implements(); |
| } |
| |
| public boolean isInterface() { |
| return false; |
| } |
| |
| public boolean isAbstract() { |
| return false; |
| } |
| |
| protected JClass substituteParams(JTypeVar[] variables, List<JClass> bindings) { |
| JClass nb = bound.substituteParams(variables,bindings); |
| if(nb==bound) |
| return this; |
| else |
| return new JTypeWildcard(nb); |
| } |
| |
| public void generate(JFormatter f) { |
| if(bound._extends()==null) |
| f.p("?"); // instead of "? extends Object" |
| else |
| f.p("? extends").g(bound); |
| } |
| } |