Thu, 12 Oct 2017 19:44:07 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.codemodel.internal; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import java.util.Iterator; |
aoqi@0 | 29 | import java.util.List; |
aoqi@0 | 30 | |
aoqi@0 | 31 | /** |
aoqi@0 | 32 | * Represents a wildcard type like "? extends Foo". |
aoqi@0 | 33 | * |
aoqi@0 | 34 | * <p> |
aoqi@0 | 35 | * Instances of this class can be obtained from {@link JClass#wildcard()} |
aoqi@0 | 36 | * |
aoqi@0 | 37 | * TODO: extend this to cover "? super Integer". |
aoqi@0 | 38 | * |
aoqi@0 | 39 | * <p> |
aoqi@0 | 40 | * Our modeling of types are starting to look really ugly. |
aoqi@0 | 41 | * ideally it should have been done somewhat like APT, |
aoqi@0 | 42 | * but it's too late now. |
aoqi@0 | 43 | * |
aoqi@0 | 44 | * @author Kohsuke Kawaguchi |
aoqi@0 | 45 | */ |
aoqi@0 | 46 | final class JTypeWildcard extends JClass { |
aoqi@0 | 47 | |
aoqi@0 | 48 | private final JClass bound; |
aoqi@0 | 49 | |
aoqi@0 | 50 | JTypeWildcard(JClass bound) { |
aoqi@0 | 51 | super(bound.owner()); |
aoqi@0 | 52 | this.bound = bound; |
aoqi@0 | 53 | } |
aoqi@0 | 54 | |
aoqi@0 | 55 | public String name() { |
aoqi@0 | 56 | return "? extends "+bound.name(); |
aoqi@0 | 57 | } |
aoqi@0 | 58 | |
aoqi@0 | 59 | public String fullName() { |
aoqi@0 | 60 | return "? extends "+bound.fullName(); |
aoqi@0 | 61 | } |
aoqi@0 | 62 | |
aoqi@0 | 63 | public JPackage _package() { |
aoqi@0 | 64 | return null; |
aoqi@0 | 65 | } |
aoqi@0 | 66 | |
aoqi@0 | 67 | /** |
aoqi@0 | 68 | * Returns the class bound of this variable. |
aoqi@0 | 69 | * |
aoqi@0 | 70 | * <p> |
aoqi@0 | 71 | * If no bound is given, this method returns {@link Object}. |
aoqi@0 | 72 | */ |
aoqi@0 | 73 | public JClass _extends() { |
aoqi@0 | 74 | if(bound!=null) |
aoqi@0 | 75 | return bound; |
aoqi@0 | 76 | else |
aoqi@0 | 77 | return owner().ref(Object.class); |
aoqi@0 | 78 | } |
aoqi@0 | 79 | |
aoqi@0 | 80 | /** |
aoqi@0 | 81 | * Returns the interface bounds of this variable. |
aoqi@0 | 82 | */ |
aoqi@0 | 83 | public Iterator<JClass> _implements() { |
aoqi@0 | 84 | return bound._implements(); |
aoqi@0 | 85 | } |
aoqi@0 | 86 | |
aoqi@0 | 87 | public boolean isInterface() { |
aoqi@0 | 88 | return false; |
aoqi@0 | 89 | } |
aoqi@0 | 90 | |
aoqi@0 | 91 | public boolean isAbstract() { |
aoqi@0 | 92 | return false; |
aoqi@0 | 93 | } |
aoqi@0 | 94 | |
aoqi@0 | 95 | protected JClass substituteParams(JTypeVar[] variables, List<JClass> bindings) { |
aoqi@0 | 96 | JClass nb = bound.substituteParams(variables,bindings); |
aoqi@0 | 97 | if(nb==bound) |
aoqi@0 | 98 | return this; |
aoqi@0 | 99 | else |
aoqi@0 | 100 | return new JTypeWildcard(nb); |
aoqi@0 | 101 | } |
aoqi@0 | 102 | |
aoqi@0 | 103 | public void generate(JFormatter f) { |
aoqi@0 | 104 | if(bound._extends()==null) |
aoqi@0 | 105 | f.p("?"); // instead of "? extends Object" |
aoqi@0 | 106 | else |
aoqi@0 | 107 | f.p("? extends").g(bound); |
aoqi@0 | 108 | } |
aoqi@0 | 109 | } |