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Optimisation of Java Bytecode via EOLANG

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2024 Objectionary.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.eolang.jeo.representation;

import java.io.PrintWriter;
import java.io.StringWriter;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.util.TraceClassVisitor;

/**
 * This is pretty-printing of bytecode.
 * @since 0.6
 * @todo #845:90min Decompile Bytecode Listing.
 *  Currently we print bytecode listing to XMIR without decompiling it.
 *  It's just raw, but human-readable bytecode.
 *  We can make one step forward and try to decompile this code to Java.
 *  This would be a great improvement for readability of this listing.
 */
public final class BytecodeListing {

    /**
     * Raw bytecode.
     */
    private final byte[] bytecode;

    /**
     * Constructor.
     * @param bytecode Bytecode.
     */
    BytecodeListing(final byte... bytecode) {
        this.bytecode = bytecode.clone();
    }

    @Override
    public String toString() {
        final ClassReader reader = new ClassReader(this.bytecode);
        final StringWriter writer = new StringWriter();
        reader.accept(new TraceClassVisitor(new PrintWriter(writer)), 0);
        return writer.toString();
    }
}