swap and assoc: Symmetric and Semigroupy Bifunctors

Version on this page:1.0.2
LTS Haskell 18.23:1.0.2@rev:2
Stackage Nightly 2022-01-25:1.0.2@rev:2
Latest on Hackage:1.0.2@rev:2

See all snapshots assoc appears in

BSD-3-Clause licensed and maintained by Oleg Grenrus
This version can be pinned in stack with:assoc-1.0.2@sha256:0be532f389dcaf4969c9e1066e1dca41b08ca4272d1b88450f552281d93106cb,1183

Module documentation for 1.0.2

Used by 2 packages in lts-17.2(full list with versions):

Provides generalisations of swap :: (a,b) -> (b,a) and assoc :: ((a,b),c) -> (a,(b,c)) to Bifunctors supporting similar operations (e.g. Either, These).



  • Add ‘Swap’ instances for more n-tuples


  • Add Assoc Const and Tagged instances