org.eclipse.objectteams.otredyn.bytecode.asm.CreateDispatchCodeInCallAllBindingsAdapter.java Source code

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Here is the source code for org.eclipse.objectteams.otredyn.bytecode.asm.CreateDispatchCodeInCallAllBindingsAdapter.java

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/**********************************************************************
 * This file is part of "Object Teams Dynamic Runtime Environment"
 * 
 * Copyright 2009, 2014 Oliver Frank and others.
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Please visit http://www.eclipse.org/objectteams for updates and contact.
 * 
 * Contributors:
 *      Oliver Frank - Initial API and implementation
 *      Stephan Herrmann - Initial API and implementation
 **********************************************************************/
package org.eclipse.objectteams.otredyn.bytecode.asm;

import org.eclipse.objectteams.otredyn.transformer.names.ConstantMembers;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
import org.objectweb.asm.tree.InsnList;
import org.objectweb.asm.tree.IntInsnNode;
import org.objectweb.asm.tree.MethodNode;

/**
 * Create the code for the dispatch from a base class to the teams 
 * in the method callAllBindings. <br/> <br/>
 * The code was generated as follows: <br/>
 * <code>
 * switch (boundMethodId) { // this was generated in CreateSwitchAdapter <br/>
 * ... <br/>
 * case (boundMethodId): <br/>
 *     Teams[] teams = TeamManager.getTeams(joinpointId) <br/>
 *     if (teams == null) { <br/>
 *         break; <br/>
 *     } <br/>
 *     <br/>
 *     Team t = teams[0]; <br/>
 *     int[] callinIds = TeamManager.getCallinIds(joinpointId); <br/>
 *     Object[] args = {arg1, ... , argn};
 *     return team._OT$callAllBindings(this, teams, 0, callinIds, boundMethodId, args);
 * } <br/>
 * </code>
 * @author Oliver Frank
 */
public class CreateDispatchCodeInCallAllBindingsAdapter extends AbstractCreateDispatchCodeAdapter {

    private int joinpointId;
    private int boundMethodId;

    public CreateDispatchCodeInCallAllBindingsAdapter(int joinpointId, int boundMethodId) {
        super(false);
        this.joinpointId = joinpointId;
        this.boundMethodId = boundMethodId;
    }

    @Override
    public boolean transform() {
        MethodNode callAllBindings = getMethod(ConstantMembers.callAllBindingsClient);
        InsnList instructions = getDispatchCode(callAllBindings, joinpointId, boundMethodId);
        addNewLabelToSwitch(callAllBindings.instructions, instructions, boundMethodId);
        callAllBindings.maxStack = getMaxStack();
        callAllBindings.maxLocals = getMaxLocals();
        return true;
    }

    @Override
    protected InsnList getBoxedArguments(Type[] args) {
        InsnList instructions = new InsnList();
        instructions.add(new IntInsnNode(Opcodes.ALOAD, 2));
        return instructions;
    }

}