| /* |
| * 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 jdk.internal.org.objectweb.asm.AnnotationVisitor; |
| import jdk.internal.org.objectweb.asm.Attribute; |
| import jdk.internal.org.objectweb.asm.FieldVisitor; |
| import jdk.internal.org.objectweb.asm.Opcodes; |
| import jdk.internal.org.objectweb.asm.TypePath; |
| import jdk.internal.org.objectweb.asm.TypeReference; |
| |
| /** |
| * A {@link FieldVisitor} that checks that its methods are properly used. |
| */ |
| public class CheckFieldAdapter extends FieldVisitor { |
| |
| private boolean end; |
| |
| /** |
| * Constructs a new {@link CheckFieldAdapter}. <i>Subclasses must not use |
| * this constructor</i>. Instead, they must use the |
| * {@link #CheckFieldAdapter(int, FieldVisitor)} version. |
| * |
| * @param fv |
| * the field visitor to which this adapter must delegate calls. |
| * @throws IllegalStateException |
| * If a subclass calls this constructor. |
| */ |
| public CheckFieldAdapter(final FieldVisitor fv) { |
| this(Opcodes.ASM5, fv); |
| if (getClass() != CheckFieldAdapter.class) { |
| throw new IllegalStateException(); |
| } |
| } |
| |
| /** |
| * Constructs a new {@link CheckFieldAdapter}. |
| * |
| * @param api |
| * the ASM API version implemented by this visitor. Must be one |
| * of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}. |
| * @param fv |
| * the field visitor to which this adapter must delegate calls. |
| */ |
| protected CheckFieldAdapter(final int api, final FieldVisitor fv) { |
| super(api, fv); |
| } |
| |
| @Override |
| public AnnotationVisitor visitAnnotation(final String desc, |
| final boolean visible) { |
| checkEnd(); |
| CheckMethodAdapter.checkDesc(desc, false); |
| return new CheckAnnotationAdapter(super.visitAnnotation(desc, visible)); |
| } |
| |
| @Override |
| public AnnotationVisitor visitTypeAnnotation(final int typeRef, |
| final TypePath typePath, final String desc, final boolean visible) { |
| checkEnd(); |
| int sort = typeRef >>> 24; |
| if (sort != TypeReference.FIELD) { |
| throw new IllegalArgumentException("Invalid type reference sort 0x" |
| + Integer.toHexString(sort)); |
| } |
| CheckClassAdapter.checkTypeRefAndPath(typeRef, typePath); |
| CheckMethodAdapter.checkDesc(desc, false); |
| return new CheckAnnotationAdapter(super.visitTypeAnnotation(typeRef, |
| typePath, desc, visible)); |
| } |
| |
| @Override |
| public void visitAttribute(final Attribute attr) { |
| checkEnd(); |
| if (attr == null) { |
| throw new IllegalArgumentException( |
| "Invalid attribute (must not be null)"); |
| } |
| super.visitAttribute(attr); |
| } |
| |
| @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"); |
| } |
| } |
| } |