statemachine

• Dart 3.8 requirement.
• Bug fixes, address linter issues, and compatibility with latest dependencies.

Ready for maintenance release 3.3.1

• Dart 2.17 requirement.
• Add the ability to abort transitions from the onBeforeTransition event.
• Add an factory method Machine.createState for subclasses to customize.

• Dart 2.16 requirement.
• Avoid dynamic calls across the code.
• Improve typing of State<T> across the code-base.

• Add onBeforeTransition and onAfterTransition to let others observe state transitions.
• Throw a composite TransitionError at the end of a transition where something went wrong.
• Allow Future and Stream transitions to recreate their source on activation using a provider function.

Improve error reporting and testing

• Make machines and states typed, so that a custom object can be associated and used for identification of each state.
• To migrate existing code change the type of your state machine from Machine to Machine<String> and make sure to provide a unique name for each call to newState, newStartState, and newStopState.

Lower the SDK constraints to make it compatible with pub

• Dart 2.12 requirement and null-safety.

Dart 2.12 requirement and null-safety.

• Dart 2.3 compatibility and requirement.

• Dart 2.2 compatibility and requirement.

• Drop Dart 1.0 compatibility.

• Reformat all code.
• Reorganize into micro libraries.

• Replace deprecated async code.

• Fix CSS problem in example.

• Update documentation.

• Fix linter warnings.
• Update documentation.
• Address missing coverage.

• Fix a broken test.

• Update to use Travis.

• Support for nested machines.
• Support for enter/exist state events.

• Improve test coverage.

• Initial version.