singleton-bool

Type level booleans

https://github.com/phadej/singleton-bool#readme

Version on this page:0.1.5@rev:1
LTS Haskell 24.18:0.1.8@rev:1
Stackage Nightly 2025-11-04:0.1.8@rev:1
Latest on Hackage:0.1.8@rev:1

See all snapshots singleton-bool appears in

BSD-3-Clause licensed and maintained by Oleg Grenrus
This version can be pinned in stack with:singleton-bool-0.1.5@sha256:0df3604c733618644febb8630b31f46c26ba6e71f0dcdc1c1c8fb27237644dbc,1199

Module documentation for 0.1.5

Depends on 2 packages(full list with versions):
base, dec
Used by 4 packages in nightly-2020-02-14(full list with versions):
boring, cabal-plan, servant, servant-swagger

singleton-bool

Build Status Hackage Stackage Nightly

Type level booleans

Changes

  • 0.1.5

    • Add discreteBool :: Dec (a :~: b) (GHC-7.8+)
    • Add Show, Eq, Ord SBool b instances.

  • 0.1.4

    • Add fromSBool and withSomeSBool.

  • 0.1.3.0

    • Add reifyBool and reflectBool.
    • Drop GHC-7.4 support (broken PolyKinds)

  • 0.1.2.0

    • Enable PolyKinds on GHC >= 7.6
    • Add sboolEqRefl :: SBoolI (a == b) => Maybe (a :~: b)

  • 0.1.1.0

    • Add eqToRefl, eqCast, trivialRefl