streamproc VS contravariant

Compare streamproc vs contravariant and see what are their differences.


Haskell library providing a continuation-based stream processor arrow (by peti)
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streamproc contravariant
- 1
3 72
- -
0.0 0.0
over 1 year ago about 2 years ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License BSD 3-clause "New" or "Revised" License
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Posts with mentions or reviews of streamproc. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning streamproc yet.
Tracking mentions began in Dec 2020.


Posts with mentions or reviews of contravariant. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-10-21.
  • Co-Applicative programming style
    2 projects | /r/haskell | 21 Oct 2021
    The operator also pops up in George Wilson's 2018 talk, Contravariant Functors: the Other Side of the Coin, along with (>*) and (*<) operators to help things along. Shortly after its publication, Issue #57 for contravariant was raised, suggesting not only (>*<) but the other operators from George's talk.

What are some alternatives?

When comparing streamproc and contravariant you can also consider the following projects:

freer-simple - A friendly effect system for Haskell

control-monad-free - Free monads and monad transformers

mmorph - Monad morphisms

hdph - Haskell distributed parallel Haskell

effect-monad - Provides 'graded monads' and 'parameterised monads' to Haskell, enabling fine-grained reasoning about effects.

operational - Implement monads by specifying instructions and their desired operational semantics.

recursion-schemes - Generalized bananas, lenses and barbed wire

monad-validate - (NOTE: REPOSITORY MOVED TO NEW OWNER: A Haskell monad transformer library for data validation

managed - A monad for managed values

either - the EitherT monad transformer

can-i-haz - Generic implementation of the Has pattern for MonadReader/MonadState and CoHas for MonadError