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Source: haskell-ghc-typelits-natnormalise
Maintainer: Debian Haskell Group <pkg-haskell-maintainers@lists.alioth.debian.org>
Uploaders: Scott Talbert <swt@techie.net>
Priority: optional
Section: haskell
Build-Depends: debhelper (>= 10),
haskell-devscripts-minimal | haskell-devscripts (>= 0.13),
cdbs,
ghc (>= 9.4),
ghc-prof,
libghc-ghc-tcplugins-extra-dev (>= 0.3.1),
libghc-ghc-tcplugins-extra-prof,
libghc-tasty-dev (>= 0.10),
libghc-tasty-prof,
libghc-tasty-hunit-dev (>= 0.9),
libghc-tasty-hunit-prof,
Build-Depends-Indep: ghc-doc,
libghc-ghc-tcplugins-extra-doc,
Standards-Version: 4.7.0
Homepage: https://www.clash-lang.org/
Vcs-Browser: https://salsa.debian.org/haskell-team/DHG_packages/tree/master/p/haskell-ghc-typelits-natnormalise
Vcs-Git: https://salsa.debian.org/haskell-team/DHG_packages.git [p/haskell-ghc-typelits-natnormalise]
X-Description: GHC typechecker plugin for types of kind GHC.TypeLits.Nat
A type checker plugin for GHC that can solve equalities and inequalities
of types of kind @Nat@, where these types are either:
.
* Type-level naturals
.
* Type variables
.
* Applications of the arithmetic expressions (+,-,*,^).
.
It solves these equalities by normalising them to sort-of SOP
(Sum-of-Products) form, and then perform a simple syntactic equality.
.
For example, this solver can prove the equality between:
.
(x + 2)^(y + 2)
.
and
.
4*x*(2 + x)^y + 4*(2 + x)^y + (2 + x)^y*x^2
.
Because the latter is actually the SOP normal form of the former.
.
To use the plugin, add the
.
OPTIONS_GHC -fplugin GHC.TypeLits.Normalise
.
Pragma to the header of your file.
Package: libghc-ghc-typelits-natnormalise-dev
Architecture: any
Depends: ${haskell:Depends},
${misc:Depends},
${shlibs:Depends},
Recommends: ${haskell:Recommends},
Suggests: ${haskell:Suggests},
Conflicts: ${haskell:Conflicts},
Provides: ${haskell:Provides},
Description: ${haskell:ShortDescription}${haskell:ShortBlurb}
${haskell:LongDescription}
.
${haskell:Blurb}
Package: libghc-ghc-typelits-natnormalise-prof
Architecture: any
Depends: ${haskell:Depends},
${misc:Depends},
Recommends: ${haskell:Recommends},
Suggests: ${haskell:Suggests},
Conflicts: ${haskell:Conflicts},
Provides: ${haskell:Provides},
Description: ${haskell:ShortDescription}${haskell:ShortBlurb}
${haskell:LongDescription}
.
${haskell:Blurb}
Package: libghc-ghc-typelits-natnormalise-doc
Architecture: all
Section: doc
Depends: ${haskell:Depends},
${misc:Depends},
Recommends: ${haskell:Recommends},
Suggests: ${haskell:Suggests},
Conflicts: ${haskell:Conflicts},
Description: ${haskell:ShortDescription}${haskell:ShortBlurb}
${haskell:LongDescription}
.
${haskell:Blurb}
|
