de.tuberlin.uebb.jbop.optimizer.utils.rename.MethodRenamer.java Source code

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Here is the source code for de.tuberlin.uebb.jbop.optimizer.utils.rename.MethodRenamer.java

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/*
 * Copyright (C) 2013 uebb.tu-berlin.de.
 * 
 * This file is part of JBOP (Java Bytecode OPtimizer).
 * 
 * JBOP is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * JBOP is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with JBOP. If not, see <http://www.gnu.org/licenses/>.
 */
package de.tuberlin.uebb.jbop.optimizer.utils.rename;

import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

/**
 * The Class MethodRenamer.
 * 
 * Method-visitor for thw {@link ClassRenamer}.
 * Renames type- method- and Field-Instructions.
 * 
 * @author Christopher Ewest
 */
class MethodRenamer extends MethodVisitor {

    private final NameFixer fixer;

    /**
     * Instantiates a new {@link MethodRenamer}.
     * 
     * @param parent
     *          the parent
     * @param fixer
     *          the fixer
     */
    public MethodRenamer(final MethodVisitor parent, final NameFixer fixer) {
        super(Opcodes.ASM5, parent);
        this.fixer = fixer;
    }

    @Override
    public void visitTypeInsn(final int i, final String s) {
        final String nameToUse;
        if (fixer.contains(s)) {
            nameToUse = fixer.getNewName();
        } else {
            nameToUse = s;
        }
        super.visitTypeInsn(i, nameToUse);
    }

    @Override
    public void visitFieldInsn(final int opcode, final String owner, final String name, final String desc) {
        if (fixer.contains(owner)) {
            super.visitFieldInsn(opcode, fixer.getNewName(), name, fixer.fix(desc));
        } else {
            super.visitFieldInsn(opcode, owner, name, fixer.fix(desc));
        }
    }

    @Override
    public void visitMethodInsn(final int opcode, final String owner, final String name, final String desc) {
        if (fixer.contains(owner)) {
            super.visitMethodInsn(opcode, fixer.getNewName(), name, fixer.fix(desc));
        } else {
            super.visitMethodInsn(opcode, owner, name, fixer.fix(desc));
        }
    }
}