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/***
 * 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 org.testifyproject.objectweb.asm.optimizer;

import org.testifyproject.objectweb.asm.AnnotationVisitor;
import org.testifyproject.objectweb.asm.Attribute;
import org.testifyproject.objectweb.asm.FieldVisitor;
import org.testifyproject.objectweb.asm.Opcodes;
import org.testifyproject.objectweb.asm.TypePath;

/**
 * A {@link FieldVisitor} that collects the {@link Constant}s of the fields it
 * visits.
 * 
 * @author Eric Bruneton
 */
public class FieldConstantsCollector extends FieldVisitor {

    private final ConstantPool cp;

    public FieldConstantsCollector(final FieldVisitor fv, final ConstantPool cp) {
        super(Opcodes.ASM5, fv);
        this.cp = cp;
    }

    @Override
    public AnnotationVisitor visitAnnotation(final String desc,
            final boolean visible) {
        cp.newUTF8(desc);
        if (visible) {
            cp.newUTF8("RuntimeVisibleAnnotations");
        } else {
            cp.newUTF8("RuntimeInvisibleAnnotations");
        }
        return new AnnotationConstantsCollector(fv.visitAnnotation(desc,
                visible), cp);
    }

    @Override
    public AnnotationVisitor visitTypeAnnotation(int typeRef,
            TypePath typePath, String desc, boolean visible) {
        cp.newUTF8(desc);
        if (visible) {
            cp.newUTF8("RuntimeVisibleTypeAnnotations");
        } else {
            cp.newUTF8("RuntimeInvisibleTypeAnnotations");
        }
        return new AnnotationConstantsCollector(fv.visitAnnotation(desc,
                visible), cp);
    }

    @Override
    public void visitAttribute(final Attribute attr) {
        // can do nothing
        fv.visitAttribute(attr);
    }

    @Override
    public void visitEnd() {
        fv.visitEnd();
    }
}