BSD-3-Clause licensed by Fumiaki Kinoshita
Maintained by [email protected]
This version can be pinned in stack with:incremental-0.3.1@sha256:9c697bae4f7e5ceb144bde13e03ca2f36b4bc2d0c92bbc02e0a604231ee279c2,1153

Module documentation for 0.3.1

Used by 1 package in nightly-2022-08-02(full list with versions):

incremental: incremental update interface

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This package provides a typeclass for incremental updates and diffing.

class Incremental a where
  -- | the difference type
  type Delta a
  -- | @'maybe' a ('patch' a) ('diff' b a) ≡ b@
  patch :: a -> Delta a -> a
  -- | returns 'Nothing' when there is no update
  diff :: a -> a -> Maybe (Delta a)

Changes

incremental

  • Added Eq, Ord instances to Alter
  • Added WrapDelta

0.3

  • Fixed the bug in the Semigroup instance for Alter
  • Renamed Delete to Delete_ and Delete now contains the old value