elerea
Version 2.1.0 revision 0 uploaded by GergelyPatai.
Package meta
- Synopsis
- A minimalistic FRP library
- Description
Elerea (Eventless reactivity) is a tiny discrete time FRP implementation without the notion of event-based switching and sampling, with first-class signals (time-varying values). Reactivity is provided through various higher-order constructs that also allow the user to work with arbitrary time-varying structures containing live signals.
Stateful signals can be safely generated at any time through a specialised monad, while stateless combinators can be used in a purely applicative style. Elerea signals can be defined recursively, and external input is trivial to attach. The library comes in four major variants:
Simple: signals are plain discrete streams isomorphic to functions over natural numbers;
Param: adds a globally accessible input signal for convenience;
Clocked: adds the ability to freeze whole subnetworks at will;
Delayed: attempts to resolve instantaneous dependency cycles (i.e. cycles without a delay); this variant is likely to be deprecated in the near future.
The first three variants come with precise denotational semantics.
This is a minimal library that defines only some basic primitives, and you are advised to install
elerea-examplesas well to get an idea how to build non-trivial systems with it. The examples are separated in order to minimise the dependencies of the core library. Thedowpackage contains a full game built on top of the simple variant.- Author
- Patai Gergely
- Bug reports
- n/a
- Category
- reactivity, FRP
- Copyright
- (c) 2009, Patai Gergely
- Homepage
- n/a
- Maintainer
- Patai Gergely (patai@iit.bme.hu)
- Package URL
- n/a
- Stability
- experimental