rubah.bytecode.transformers.RubahTransformer.java Source code

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Here is the source code for rubah.bytecode.transformers.RubahTransformer.java

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/*******************************************************************************
 *     Copyright 2014,
 *        Luis Pina <luis@luispina.me>,
 *        Michael Hicks <mwh@cs.umd.edu>
 *     
 *     This file is part of Rubah.
 *
 *     Rubah is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     Rubah 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 General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with Rubah.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package rubah.bytecode.transformers;

import java.lang.reflect.Modifier;
import java.util.HashMap;

import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.Opcodes;

import rubah.framework.Clazz;
import rubah.framework.Namespace;
import rubah.framework.Type;

public class RubahTransformer extends ClassVisitor implements Opcodes {

    protected Clazz thisClass;
    protected HashMap<String, Object> objectsMap;
    protected Namespace namespace;
    protected boolean isInterface;

    public RubahTransformer(HashMap<String, Object> objectsMap, Namespace namespace) {
        super(ASM5);
        this.objectsMap = objectsMap;
        this.namespace = namespace;
    }

    public RubahTransformer(HashMap<String, Object> objectsMap, Namespace namespace, ClassVisitor cv) {
        super(ASM5, cv);
        this.objectsMap = objectsMap;
        this.namespace = namespace;
    }

    @Override
    public void visit(int version, int access, String name, String signature, String superName,
            String[] interfaces) {
        this.visit(version, access, name, signature, superName, interfaces, true);
    }

    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces,
            boolean callNextVisitor) {
        if (this.objectsMap != null) {
            this.thisClass = (Clazz) this.objectsMap.get(name);
        } else {
            this.thisClass = this.namespace.getClass(Type.getObjectType(name));
        }

        this.isInterface = Modifier.isInterface(access);

        if (callNextVisitor)
            super.visit(version, access, name, signature, superName, interfaces);
    }
}