/* * Copyright 2012-present Facebook, Inc. * * 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.facebook.buck.graph; /** Performs a breadth-first traversal of dependencies of a graph node. */ public abstract class AbstractBreadthFirstTraversal<Node> extends AbstractBreadthFirstThrowingTraversal<Node, RuntimeException> { public AbstractBreadthFirstTraversal(Node initialNode) { super(initialNode); } public AbstractBreadthFirstTraversal(Iterable<? extends Node> initialNodes) { super(initialNodes); } /** * Traverse a graph without explicitly creating a {@code new * AbstractBreadthFirstThrowingTraversal} and overriding {@link #visit(Object)} * * @param visitor Typically a lambda expression */ public static <Node> void traverse(Node initialNode, Visitor<Node, RuntimeException> visitor) { new StaticBreadthFirstTraversal<>(initialNode, visitor).start(); } /** * Traverse a graph without explicitly creating a {@code new * AbstractBreadthFirstThrowingTraversal} and overriding {@link #visit(Object)} * * @param visitor Typically a lambda expression */ public static <Node> void traverse( Iterable<? extends Node> initialNodes, final Visitor<Node, RuntimeException> visitor) { new StaticBreadthFirstTraversal<>(initialNodes, visitor).start(); } }