Package: libghc-ghc-typelits-knownnat-doc
Source: haskell-ghc-typelits-knownnat
Version: 0.7.13-1build1
Architecture: all
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Debian Haskell Group <pkg-haskell-maintainers@lists.alioth.debian.org>
Installed-Size: 720
Depends: haddock-interface-44
Recommends: ghc-doc, libghc-ghc-tcplugins-extra-doc, libghc-ghc-typelits-knownnat-dev, libghc-ghc-typelits-natnormalise-doc, libjs-mathjax
Suggests: libghc-ghc-typelits-knownnat-prof
Section: doc
Priority: optional
Homepage: https://clash-lang.org/
Description: Derive KnownNat constraints from other KnownNat constraints; documentation
 A type checker plugin for GHC that can derive "complex" KnownNat
 constraints from other simple/variable KnownNat constraints. i.e. without
 this plugin, you must have both a KnownNat n and a KnownNat (n+2)
 constraint in the type signature of the following function:
 .
 f :: forall n . (KnownNat n, KnownNat (n+2)) => Proxy n -> Integer
 f _ = natVal (Proxy :: Proxy n) + natVal (Proxy :: Proxy (n+2))
 .
 Using the plugin you can omit the KnownNat (n+2) constraint:
 .
 f :: forall n . KnownNat n => Proxy n -> Integer
 f _ = natVal (Proxy :: Proxy n) + natVal (Proxy :: Proxy (n+2))
 .
 The plugin can derive KnownNat constraints for types consisting of:
 .
  * Type variables, when there is a corresponding KnownNat constraint
 .
  * Type-level naturals
 .
  * Applications of the arithmetic expression: +,-,*,^
 .
  * Type functions, when there is either:
 .
 1. a matching given KnownNat constraint; or
 .
 2. a corresponding KnownNat<N> instance for the type function
 .
 To use the plugin, add the
 .
 OPTIONS_GHC -fplugin GHC.TypeLits.KnownNat.Solver
 .
 Pragma to the header of your file.
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.
