| /*** |
| * ASM: a very small and fast Java bytecode manipulation framework |
| * Copyright (c) 2000-2007 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 com.google.gwt.dev.asm.tree; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import com.google.gwt.dev.asm.AnnotationVisitor; |
| |
| /** |
| * A node that represents an annotationn. |
| * |
| * @author Eric Bruneton |
| */ |
| public class AnnotationNode implements AnnotationVisitor { |
| |
| /** |
| * The class descriptor of the annotation class. |
| */ |
| public String desc; |
| |
| /** |
| * The name value pairs of this annotation. Each name value pair is stored |
| * as two consecutive elements in the list. The name is a {@link String}, |
| * and the value may be a {@link Byte}, {@link Boolean}, {@link Character}, |
| * {@link Short}, {@link Integer}, {@link Long}, {@link Float}, |
| * {@link Double}, {@link String} or {@link com.google.gwt.dev.asm.Type}, or an |
| * two elements String array (for enumeration values), a |
| * {@link AnnotationNode}, or a {@link List} of values of one of the |
| * preceding types. The list may be <tt>null</tt> if there is no name |
| * value pair. |
| */ |
| public List values; |
| |
| /** |
| * Constructs a new {@link AnnotationNode}. |
| * |
| * @param desc the class descriptor of the annotation class. |
| */ |
| public AnnotationNode(final String desc) { |
| this.desc = desc; |
| } |
| |
| /** |
| * Constructs a new {@link AnnotationNode} to visit an array value. |
| * |
| * @param values where the visited values must be stored. |
| */ |
| AnnotationNode(final List values) { |
| this.values = values; |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Implementation of the AnnotationVisitor interface |
| // ------------------------------------------------------------------------ |
| |
| public void visit(final String name, final Object value) { |
| if (values == null) { |
| values = new ArrayList(this.desc != null ? 2 : 1); |
| } |
| if (this.desc != null) { |
| values.add(name); |
| } |
| values.add(value); |
| } |
| |
| public void visitEnum( |
| final String name, |
| final String desc, |
| final String value) |
| { |
| if (values == null) { |
| values = new ArrayList(this.desc != null ? 2 : 1); |
| } |
| if (this.desc != null) { |
| values.add(name); |
| } |
| values.add(new String[] { desc, value }); |
| } |
| |
| public AnnotationVisitor visitAnnotation( |
| final String name, |
| final String desc) |
| { |
| if (values == null) { |
| values = new ArrayList(this.desc != null ? 2 : 1); |
| } |
| if (this.desc != null) { |
| values.add(name); |
| } |
| AnnotationNode annotation = new AnnotationNode(desc); |
| values.add(annotation); |
| return annotation; |
| } |
| |
| public AnnotationVisitor visitArray(final String name) { |
| if (values == null) { |
| values = new ArrayList(this.desc != null ? 2 : 1); |
| } |
| if (this.desc != null) { |
| values.add(name); |
| } |
| List array = new ArrayList(); |
| values.add(array); |
| return new AnnotationNode(array); |
| } |
| |
| public void visitEnd() { |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Accept methods |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Makes the given visitor visit this annotation. |
| * |
| * @param av an annotation visitor. Maybe <tt>null</tt>. |
| */ |
| public void accept(final AnnotationVisitor av) { |
| if (av != null) { |
| if (values != null) { |
| for (int i = 0; i < values.size(); i += 2) { |
| String name = (String) values.get(i); |
| Object value = values.get(i + 1); |
| accept(av, name, value); |
| } |
| } |
| av.visitEnd(); |
| } |
| } |
| |
| /** |
| * Makes the given visitor visit a given annotation value. |
| * |
| * @param av an annotation visitor. Maybe <tt>null</tt>. |
| * @param name the value name. |
| * @param value the actual value. |
| */ |
| static void accept( |
| final AnnotationVisitor av, |
| final String name, |
| final Object value) |
| { |
| if (av != null) { |
| if (value instanceof String[]) { |
| String[] typeconst = (String[]) value; |
| av.visitEnum(name, typeconst[0], typeconst[1]); |
| } else if (value instanceof AnnotationNode) { |
| AnnotationNode an = (AnnotationNode) value; |
| an.accept(av.visitAnnotation(name, an.desc)); |
| } else if (value instanceof List) { |
| AnnotationVisitor v = av.visitArray(name); |
| List array = (List) value; |
| for (int j = 0; j < array.size(); ++j) { |
| accept(v, null, array.get(j)); |
| } |
| v.visitEnd(); |
| } else { |
| av.visit(name, value); |
| } |
| } |
| } |
| } |