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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.objectweb.asm.commons;

import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

/**
 * A {@link ClassVisitor} for type remapping.
 *
 * @author Eugene Kuleshov
 */
public class RemappingClassAdapter extends ClassVisitor {

    protected final Remapper remapper;

    protected String className;

    public RemappingClassAdapter(final ClassVisitor cv, final Remapper remapper)
    {
        this(Opcodes.ASM4, cv, remapper);
    }

    protected RemappingClassAdapter(
        final int api,
        final ClassVisitor cv,
        final Remapper remapper)
    {
        super(api, cv);
        this.remapper = remapper;
    }

    @Override
    public void visit(
        int version,
        int access,
        String name,
        String signature,
        String superName,
        String[] interfaces)
    {
        this.className = name;
        super.visit(version,
                access,
                remapper.mapType(name),
                remapper.mapSignature(signature, false),
                remapper.mapType(superName),
                interfaces == null ? null
                        : remapper.mapTypes(interfaces));
    }

    @Override
    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
        AnnotationVisitor av;
        av = super.visitAnnotation(remapper.mapDesc(desc), visible);
        return av == null ? null : createRemappingAnnotationAdapter(av);
    }

    @Override
    public FieldVisitor visitField(
        int access,
        String name,
        String desc,
        String signature,
        Object value)
    {
        FieldVisitor fv = super.visitField(access,
                remapper.mapFieldName(className, name, desc),
                remapper.mapDesc(desc),
                remapper.mapSignature(signature, true),
                remapper.mapValue(value));
        return fv == null ? null : createRemappingFieldAdapter(fv);
    }

    @Override
    public MethodVisitor visitMethod(
        int access,
        String name,
        String desc,
        String signature,
        String[] exceptions)
    {
        String newDesc = remapper.mapMethodDesc(desc);
        MethodVisitor mv = super.visitMethod(access,
                remapper.mapMethodName(className, name, desc),
                newDesc,
                remapper.mapSignature(signature, false),
                exceptions == null ? null : remapper.mapTypes(exceptions));
        return mv == null ? null : createRemappingMethodAdapter(access, newDesc, mv);
    }

    @Override
    public void visitInnerClass(
        String name,
        String outerName,
        String innerName,
        int access)
    {
        super.visitInnerClass(remapper.mapType(name),
                outerName == null ? null : remapper.mapType(outerName),
                innerName, // TODO should it be changed?
                access);
    }

    @Override
    public void visitOuterClass(String owner, String name, String desc) {
        super.visitOuterClass(remapper.mapType(owner),
                name == null ? null : remapper.mapMethodName(owner, name, desc),
                desc == null ? null : remapper.mapMethodDesc(desc));
    }

    protected FieldVisitor createRemappingFieldAdapter(FieldVisitor fv) {
        return new RemappingFieldAdapter(fv, remapper);
    }

    protected MethodVisitor createRemappingMethodAdapter(
        int access,
        String newDesc,
        MethodVisitor mv)
    {
        return new RemappingMethodAdapter(access, newDesc, mv, remapper);
    }

    protected AnnotationVisitor createRemappingAnnotationAdapter(
        AnnotationVisitor av)
    {
        return new RemappingAnnotationAdapter(av, remapper);
    }
}