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machina-typescript

v0.0.3

Published

Typesafe wrapper around https://github.com/ifandelse/machina.js

Downloads

4

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Links

Git

Maintainers

martinrammmartinramm

Keywords

typescriptfsmfinite-state-machinemachinamachina.jsstatesevents

Readme

machina-typescript

Author: MartinRamm.

This is a typesafe wrapper around machina, a FSM library by ifandelse. As the interfaces towards machina are changed, this project is not part of the DefinitelyTyped project.

Features

Only partial support of the machina library are implemented by this wrapper. But the features that are implemented, are implemented in a typesafe manner. Specifically:

  • You can only transition/deferUntilTransition to states that actually exist
  • States may require parameters to be given when transitioning into them
  • Input (fsm.handle) may require certain parameters to be given to them
  • You can only emit events that are defined
  • Events may require parameters to be provided when firing the event
  • Instantiating the fsm may require specific constructor parameters to be given to them

Furthermore, the functionality of machina is extended by adding a default handler for input, that each state automatically receives but may choose to override.

UNSTABLE VERSION

This is a preview of the library I am currently working on. The interfaces (and implementation) should be considered unstable and will likely change before V1 is released. Hence, they are currently not documented. The author is currently actively working on this library, the public is invited to leave feedback (by opening an issue).