Extended Finite State Machine in Rust

• internal event queue allows a machine to post events against itself on transition completion
• supports optional transition per state entry/exit
• events can carry dynamic arguments accessible when transition is executed
• machine generates its own .dot graphs easily converted into .pdf or .svg supporting colored edges and summarizing edges for same start and end state transitions
• slog debugging support
• machine's extended state can be examined when not processing events

License

Copyright (c) 2017, Juniper Networks, Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. This code is not an official Juniper product. 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.