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gnu: Add ghc-foldl.

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* gnu/packages/haskell.scm (ghc-foldl): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
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rsiddharth 2017-10-18 03:07:53 +00:00 • committed by Ludovic Courtès
parent 1896a2526d
commit f6094850d0
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@ -9932,4 +9932,36 @@ the vector; then you can execute the builder to actually produce the
vector. ")
(license license:expat)))
(define-public ghc-foldl
(package
(name "ghc-foldl")
(version "1.3.2")
(source
(origin
(method url-fetch)
(uri (string-append "https://hackage.haskell.org/package/"
"foldl-" version "/"
"foldl-" version ".tar.gz"))
(sha256
(base32
"1z3xjz4khs2kr3mqkbh7dz4kd6gkdk2r67wjkvrxnmp533aqh90n"))))
(build-system haskell-build-system)
(inputs `(("ghc-mwc-randam" ,ghc-mwc-random)
("ghc-primitive" ,ghc-primitive)
("ghc-text" ,ghc-text)
("ghc-vector" ,ghc-vector)
("ghc-unordered-containers" ,ghc-unordered-containers)
("ghc-hashable" ,ghc-hashable)
("ghc-contravariant" ,ghc-contravariant)
("ghc-profunctors" ,ghc-profunctors)
("ghc-comonad" ,ghc-comonad)
("ghc-vector-builder" ,ghc-vector-builder)))
(home-page "https://github.com/Gabriel439/Haskell-Foldl-Library")
(synopsis "Composable, streaming, and efficient left folds for Haskell")
(description "This Haskell library provides strict left folds that stream
in constant memory, and you can combine folds using @code{Applicative} style
to derive new folds. Derived folds still traverse the container just once
and are often as efficient as hand-written folds.")
(license license:bsd-3)))
;;; haskell.scm ends here