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/*
* Copyright (c) 2013, 2018, 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.
*
* 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 vm.share.transform;
import jdk.internal.org.objectweb.asm.AnnotationVisitor;
public abstract class AnnotationAppender {
private final String desc;
private final boolean visible;
private boolean annotationPresent;
public AnnotationAppender(String desc, boolean visible) {
this.desc = desc;
this.visible = visible;
}
public void checkAnnotation(String desc, boolean isVisible) {
annotationPresent |= visible == isVisible && this.desc.equals(desc);
}
public void addAnnotation(VisitAnnotation func) {
if (shouldAdd()) {
AnnotationVisitor av = func.visit(desc, true);
if (av != null) {
postCreate(av);
av.visitEnd();
annotationPresent = true;
}
}
}
protected boolean shouldAdd() {
return !annotationPresent;
}
protected abstract void postCreate(AnnotationVisitor av);
@FunctionalInterface
public static interface VisitAnnotation {
AnnotationVisitor visit(String desc, boolean visible);
}
}
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