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Monthly Downloads: 1
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
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README
lambda-placeholders
lambda-placeholders is a Haskell library to emulate the placeholders feature of Scala.
Background
- Placeholders in Scala act similar to those used in category theory.
- Rather than create a lambda or name a function, an underscore is used in place of a parameter and the function is abstracted over that location.
- This placeholders library doesn't use underscores, rather it leverages similar capabilities found in TupleSections.
- A description of Scala placeholders can be found here.
Example
{-# LANGUAGE
TupleSections
#-}
module Main where
import Language.LambdaPlaceholders
foo (a,b,c) = a + b + c
curried_foo = foo.$.(2, , )
main = do
putStrLn $ show $ curried_foo 4 5