/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.build.gradle.shrinker;

import java.util.Map;

/**
 * Represents the -keep* flags from a ProGuard config file.
 */
public interface KeepRules {

    /**
     * Given a program class and the whole {@link ShrinkerGraph}, decides which symbols should be
     * kept in the output. The result can contain methods and fields from {@code klass} as well as
     * {@code klass} itself (in case of -keep rules).
     */
    <T> Map<T, DependencyType> getSymbolsToKeep(T klass, ShrinkerGraph<T> graph);
}
