/*
 * Tai-e: A Static Analysis Framework for Java
 *
 * Copyright (C) 2022 Tian Tan <tiantan@nju.edu.cn>
 * Copyright (C) 2022 Yue Li <yueli@nju.edu.cn>
 *
 * This file is part of Tai-e.
 *
 * Tai-e 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.
 *
 * Tai-e 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 Tai-e. If not, see <https://www.gnu.org/licenses/>.
 */

package pascal.taie.analysis.pta.plugin.taint;

import pascal.taie.language.classes.JMethod;
import pascal.taie.language.type.Type;

/**
 * Represents taint transfer between argument/base/return variables
 * caused by invocation to specific method.
 * <ul>
 *     <li>method: the method that causes taint transfer
 *     <li>from: the index of "from" variable
 *     <li>to: the index of "to" variable
 *     <li>type: the type of the transferred taint object
 * </ul>
 */
record TaintTransfer(
        JMethod method, TransferPoint from, TransferPoint to, Type type) {

    @Override
    public String toString() {
        return method + ": " +
                from + " -> " + to + "(" + type + ")";
    }
}
