| /* |
| * 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. |
| */ |
| |
| /* |
| * This file is available under and governed by the GNU General Public |
| * License version 2 only, as published by the Free Software Foundation. |
| * However, the following notice accompanied the original version of this |
| * file: |
| * |
| * ASM: a very small and fast Java bytecode manipulation framework |
| * Copyright (c) 2000-2011 INRIA, France Telecom |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package jdk.internal.org.objectweb.asm.util; |
| |
| import java.util.HashSet; |
| |
| import jdk.internal.org.objectweb.asm.ModuleVisitor; |
| import jdk.internal.org.objectweb.asm.Opcodes; |
| |
| /** |
| * @author Remi Forax |
| */ |
| public final class CheckModuleAdapter extends ModuleVisitor { |
| private boolean end; |
| private final boolean isOpen; |
| |
| private final HashSet<String> requireNames = new HashSet<String>(); |
| private final HashSet<String> exportNames = new HashSet<String>(); |
| private final HashSet<String> openNames = new HashSet<String>(); |
| private final HashSet<String> useNames = new HashSet<String>(); |
| private final HashSet<String> provideNames = new HashSet<String>(); |
| |
| public CheckModuleAdapter(final ModuleVisitor mv, final boolean isOpen) { |
| super(Opcodes.ASM6, mv); |
| this.isOpen = isOpen; |
| } |
| |
| @Override |
| public void visitRequire(String module, int access, String version) { |
| checkEnd(); |
| if (module == null) { |
| throw new IllegalArgumentException("require cannot be null"); |
| } |
| checkDeclared("requires", requireNames, module); |
| CheckClassAdapter.checkAccess(access, Opcodes.ACC_STATIC_PHASE |
| + Opcodes.ACC_TRANSITIVE + Opcodes.ACC_SYNTHETIC + Opcodes.ACC_MANDATED); |
| super.visitRequire(module, access, version); |
| } |
| |
| @Override |
| public void visitExport(String packaze, int access, String... modules) { |
| checkEnd(); |
| if (packaze == null) { |
| throw new IllegalArgumentException("packaze cannot be null"); |
| } |
| CheckMethodAdapter.checkInternalName(packaze, "package name"); |
| checkDeclared("exports", exportNames, packaze); |
| CheckClassAdapter.checkAccess(access, Opcodes.ACC_SYNTHETIC |
| + Opcodes.ACC_MANDATED); |
| if (modules != null) { |
| for (int i = 0; i < modules.length; i++) { |
| if (modules[i] == null) { |
| throw new IllegalArgumentException("module at index " + i + " cannot be null"); |
| } |
| } |
| } |
| super.visitExport(packaze, access, modules); |
| } |
| |
| @Override |
| public void visitOpen(String packaze, int access, String... modules) { |
| checkEnd(); |
| if (isOpen) { |
| throw new IllegalArgumentException("an open module can not use open directive"); |
| } |
| if (packaze == null) { |
| throw new IllegalArgumentException("packaze cannot be null"); |
| } |
| CheckMethodAdapter.checkInternalName(packaze, "package name"); |
| checkDeclared("opens", openNames, packaze); |
| CheckClassAdapter.checkAccess(access, Opcodes.ACC_SYNTHETIC |
| + Opcodes.ACC_MANDATED); |
| if (modules != null) { |
| for (int i = 0; i < modules.length; i++) { |
| if (modules[i] == null) { |
| throw new IllegalArgumentException("module at index " + i + " cannot be null"); |
| } |
| } |
| } |
| super.visitOpen(packaze, access, modules); |
| } |
| |
| @Override |
| public void visitUse(String service) { |
| checkEnd(); |
| CheckMethodAdapter.checkInternalName(service, "service"); |
| checkDeclared("uses", useNames, service); |
| super.visitUse(service); |
| } |
| |
| @Override |
| public void visitProvide(String service, String... providers) { |
| checkEnd(); |
| CheckMethodAdapter.checkInternalName(service, "service"); |
| checkDeclared("provides", provideNames, service); |
| if (providers == null || providers.length == 0) { |
| throw new IllegalArgumentException("providers cannot be null or empty"); |
| } |
| for (int i = 0; i < providers.length; i++) { |
| CheckMethodAdapter.checkInternalName(providers[i], "provider"); |
| } |
| super.visitProvide(service, providers); |
| } |
| |
| @Override |
| public void visitEnd() { |
| checkEnd(); |
| end = true; |
| super.visitEnd(); |
| } |
| |
| private void checkEnd() { |
| if (end) { |
| throw new IllegalStateException( |
| "Cannot call a visit method after visitEnd has been called"); |
| } |
| } |
| |
| private static void checkDeclared(String directive, HashSet<String> names, String name) { |
| if (!names.add(name)) { |
| throw new IllegalArgumentException(directive + " " + name + " already declared"); |
| } |
| } |
| } |