unsatisfiable: Unsatisfiable type class

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This package provides a

class Unsatisfiable (msg :: TypeError)

and

unsatisfiable :: forall msg a. Unsatisfiable msg => a

combinator.

There is also a plugin which

  • Pretty-prints msgs of wanted Unsatisfiable, and

  • Solves all other constraints if there is given Unsatisfiable

The plugin also works with -fdefer-type-errors.

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Versions [RSS] 0
Dependencies base (>=4.15 && <4.16), ghc (>=9.0.1 && <9.1) [details]
Tested with ghc ==9.0.1
License BSD-3-Clause
Author Oleg Grenrus <oleg.grenrus@iki.fi>, Adam Gundry
Maintainer Oleg Grenrus <oleg.grenrus@iki.fi>
Category Plugin
Source repo head: git clone https://github.com/phadej/unsatisfiable.git
Uploaded by phadej at 2021-05-28T21:55:42Z
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Downloads 228 total (1 in the last 30 days)
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Status Docs uploaded by user
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