com.github.jasmo.obfuscate.RemoveDebugInfo.java Source code

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Here is the source code for com.github.jasmo.obfuscate.RemoveDebugInfo.java

Source

/*
 * Copyright  2017 Caleb Whiting <caleb.andrew.whiting@gmail.com>
 * This work is free. You can redistribute it and/or modify it under the
 * terms of the Do What The Fuck You Want To Public License, Version 2,
 * as published by Sam Hocevar. See the COPYING file for more details.
 */

package com.github.jasmo.obfuscate;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.objectweb.asm.*;
import org.objectweb.asm.tree.*;

import java.util.*;

/**
 * @author Caleb Whiting
 */
public class RemoveDebugInfo implements Transformer {

    private static final Logger log = LogManager.getLogger("RemoveDebugInfo");

    @Override
    public void transform(Map<String, ClassNode> classMap) {
        Map<String, ClassNode> map = new HashMap<>();
        for (ClassNode cn : classMap.values()) {
            log.debug("Removing debug info from class: {}", cn.name);
            ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
            cn.accept(writer);
            ClassNode clone = new ClassNode();
            new ClassReader(writer.toByteArray()).accept(clone, ClassReader.SKIP_DEBUG);
            map.put(clone.name, clone);
        }
        classMap.clear();
        classMap.putAll(map);
    }

}