net.md_5.specialsource.repo.RuntimeRepo Maven / Gradle / Ivy

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A jar compare and renaming engine designed for comparing and remapping 2 jars of differnent obfuscation mappings. Can also be useful for reobfuscation.

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/**
 * Copyright (c) 2012, md_5. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 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.
 *
 * The name of the author may not 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 net.md_5.specialsource.repo;

import java.io.IOException;
import lombok.AccessLevel;
import lombok.Getter;
import lombok.NoArgsConstructor;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.tree.ClassNode;

@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class RuntimeRepo extends CachingRepo {

    @Getter
    private static final RuntimeRepo instance = new RuntimeRepo();

    @Override
    protected ClassNode findClass0(String internalName) {
        ClassReader cr;
        try {
            cr = new ClassReader(internalName);
        } catch (Exception ex) {
            return null;
        }
        ClassNode node = new ClassNode();
        cr.accept(node, 0);
        return node;
    }
}