| /* |
| * 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.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Collections; |
| import java.util.ArrayList; |
| |
| /** |
| * Represents X<Y>. |
| * |
| * TODO: consider separating the decl and the use. |
| * |
| * @author |
| * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
| */ |
| class JNarrowedClass extends JClass { |
| /** |
| * A generic class with type parameters. |
| */ |
| final JClass basis; |
| /** |
| * Arguments to those parameters. |
| */ |
| private final List<JClass> args; |
| |
| JNarrowedClass(JClass basis, JClass arg) { |
| this(basis,Collections.singletonList(arg)); |
| } |
| |
| JNarrowedClass(JClass basis, List<JClass> args) { |
| super(basis.owner()); |
| this.basis = basis; |
| assert !(basis instanceof JNarrowedClass); |
| this.args = args; |
| } |
| |
| @Override |
| public JClass narrow( JClass clazz ) { |
| List<JClass> newArgs = new ArrayList<JClass>(args); |
| newArgs.add(clazz); |
| return new JNarrowedClass(basis,newArgs); |
| } |
| |
| @Override |
| public JClass narrow( JClass... clazz ) { |
| List<JClass> newArgs = new ArrayList<JClass>(args); |
| newArgs.addAll(Arrays.asList(clazz)); |
| return new JNarrowedClass(basis,newArgs); |
| } |
| |
| public String name() { |
| StringBuilder buf = new StringBuilder(); |
| buf.append(basis.name()); |
| buf.append('<'); |
| boolean first = true; |
| for (JClass c : args) { |
| if(first) |
| first = false; |
| else |
| buf.append(','); |
| buf.append(c.name()); |
| } |
| buf.append('>'); |
| return buf.toString(); |
| } |
| |
| public String fullName() { |
| StringBuilder buf = new StringBuilder(); |
| buf.append(basis.fullName()); |
| buf.append('<'); |
| boolean first = true; |
| for (JClass c : args) { |
| if(first) |
| first = false; |
| else |
| buf.append(','); |
| buf.append(c.fullName()); |
| } |
| buf.append('>'); |
| return buf.toString(); |
| } |
| |
| @Override |
| public String binaryName() { |
| StringBuilder buf = new StringBuilder(); |
| buf.append(basis.binaryName()); |
| buf.append('<'); |
| boolean first = true; |
| for (JClass c : args) { |
| if(first) |
| first = false; |
| else |
| buf.append(','); |
| buf.append(c.binaryName()); |
| } |
| buf.append('>'); |
| return buf.toString(); |
| } |
| |
| @Override |
| public void generate(JFormatter f) { |
| f.t(basis).p('<').g(args).p(JFormatter.CLOSE_TYPE_ARGS); |
| } |
| |
| @Override |
| void printLink(JFormatter f) { |
| basis.printLink(f); |
| f.p("{@code <}"); |
| boolean first = true; |
| for( JClass c : args ) { |
| if(first) |
| first = false; |
| else |
| f.p(','); |
| c.printLink(f); |
| } |
| f.p("{@code >}"); |
| } |
| |
| public JPackage _package() { |
| return basis._package(); |
| } |
| |
| public JClass _extends() { |
| JClass base = basis._extends(); |
| if(base==null) return base; |
| return base.substituteParams(basis.typeParams(),args); |
| } |
| |
| public Iterator<JClass> _implements() { |
| return new Iterator<JClass>() { |
| private final Iterator<JClass> core = basis._implements(); |
| public void remove() { |
| core.remove(); |
| } |
| public JClass next() { |
| return core.next().substituteParams(basis.typeParams(),args); |
| } |
| public boolean hasNext() { |
| return core.hasNext(); |
| } |
| }; |
| } |
| |
| @Override |
| public JClass erasure() { |
| return basis; |
| } |
| |
| public boolean isInterface() { |
| return basis.isInterface(); |
| } |
| |
| public boolean isAbstract() { |
| return basis.isAbstract(); |
| } |
| |
| @Override |
| public boolean isArray() { |
| return false; |
| } |
| |
| |
| // |
| // Equality is based on value |
| // |
| |
| @Override |
| public boolean equals(Object obj) { |
| if(!(obj instanceof JNarrowedClass)) return false; |
| return fullName().equals(((JClass)obj).fullName()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return fullName().hashCode(); |
| } |
| |
| protected JClass substituteParams(JTypeVar[] variables, List<JClass> bindings) { |
| JClass b = basis.substituteParams(variables,bindings); |
| boolean different = b!=basis; |
| |
| List<JClass> clazz = new ArrayList<JClass>(args.size()); |
| for( int i=0; i<clazz.size(); i++ ) { |
| JClass c = args.get(i).substituteParams(variables,bindings); |
| clazz.set(i,c); |
| different |= c != args.get(i); |
| } |
| |
| if(different) |
| return new JNarrowedClass(b,clazz); |
| else |
| return this; |
| } |
| |
| @Override |
| public List<JClass> getTypeParameters() { |
| return args; |
| } |
| } |