Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/vm/StateSet.java @ 34:49be04cc6389 default tip java9-try
cyclic dependency ...
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Tue, 19 Dec 2017 11:21:23 +0900 |
parents | 61d41facf527 |
children |
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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is 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 gov.nasa.jpf.vm; /** * interface to encapsulate an ADT (conceptually a set) used to answer if * a state has been seen already */ public interface StateSet { static final int UNKNOWN_ID = -1; void attach(VM vm); /** * check if a state is already in the set, and add it if not. Answer * it's numeric id */ int addCurrent (); /** * how many states already in the set. also, index of next newly-added state. */ int size (); }