This is Helium's custom Haskell Prelude. It is backwards-compatible with the existing Haskell 98 Prelude, but depends on a few packages so as to provide the easiest and lowest-friction approach for including commonly-used packages.
It exports the following identifiers:
- strict
Text
andByteString
types, from their respective packages - lifted
try
,catch
, andthrow
, from lifted-base Control.Monad.Trans
, from mtlNFData
, from the deepseq package- generalized
(.)
andid
from Control.Category
All other operators from the Prelude are exported from the most generalized module possible.
Please see this blog post for more information on why Overture exists and the reasoning behind its structure.
It is released under the no-rights-reserved Unlicense, so you can do whatever you want with it.