contravariant VS can-i-haz

Compare contravariant vs can-i-haz and see what are their differences.

can-i-haz

Generic implementation of the Has pattern for MonadReader/MonadState and CoHas for MonadError (by 0xd34df00d)
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contravariant can-i-haz
1 -
72 14
- -
0.0 0.0
almost 2 years ago about 1 year ago
Haskell Haskell
GNU General Public License v3.0 or later BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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contravariant

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.

can-i-haz

Posts with mentions or reviews of can-i-haz. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning can-i-haz yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing contravariant and can-i-haz you can also consider the following projects:

control-monad-free - Free monads and monad transformers

transient - A full stack, reactive architecture for general purpose programming. Algebraic and monadically composable primitives for concurrency, parallelism, event handling, transactions, multithreading, Web, and distributed computing with complete de-inversion of control (No callbacks, no blocking, pure state)

hdph - Haskell distributed parallel Haskell

these - An either-or-both data type, with corresponding hybrid error/writer monad transformer.

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

freer-effects - An implementation of "Freer Monads, More Extensible Effects".

streamproc - Haskell library providing a continuation-based stream processor arrow

retry - Retry combinators for monadic actions that may fail

recursion-schemes - Generalized bananas, lenses and barbed wire

hask - Category theory for Haskell with a lens flavor (you need GHC 7.8.3, not 7.8.2 to build this!)

managed - A monad for managed values

monad-control - Lift control operations, like exception catching, through monad transformers