Popularity
4.1
Declining
Activity
5.9
Stable
7
3
0
Monthly Downloads: 3
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags:
Development
Record
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README
record-hasfield 
This package provides a version of "GHC.Records" as it will be after the implementation of GHC proposal #42, which reads:
-- | Constraint representing the fact that the field @x@ can be get and set on
-- the record type @r@ and has field type @a@.
class HasField x r a | x r -> a where
-- | Function to get and set a field in a record.
hasField :: r -> (a -> r, a)
In GHC these will be magically solved, but this package doesn't provide that. This package does provide extra helper functions for working with the HasField type class.