CEPs (Classy-Effects Protocols) are a collection of protocols for expressing and defining effects in Haskell, aimed at the first objective in the Sayo Project:
Exploring ways to improve interoperability among the myriad Haskell effect system libraries
CEP-01 is at the core of these protocols. Each CEP is independent, and some are extensions (optional).
The current version is 0.1.0 (compliant with SemVer). The current state is experimental and not stable.
The classy-effects-base library provides the definitions necessary to comply with CEPs.
The classy-effects-th library offers a feature to derive all the definitions required for CEPs compliance solely from the type class definitions of effects, using Template Haskell. By using this automatic derivation, you essentially comply with CEPs without needing to be consciously aware of them.
The classy-effects library provides standard effects (Reader, Writer, State, etc.) defined in accordance with CEPs.
All files located under the CEPs directory where this README.md file is placed are licensed under CC BY-SA 4.0.