Agda-2.2.10: A dependently typed functional programming language and proof assistantSource codeContentsIndex
Agda.Utils.Either
Description
Utilities for the Either type
Synopsis
isLeft :: Either a b -> Bool
isRight :: Either a b -> Bool
allRight :: [Either a b] -> Either [Either a b] [b]
tests :: IO Bool
Documentation
isLeft :: Either a b -> BoolSource
Returns True iff the argument is Left x for some x.
isRight :: Either a b -> BoolSource
Returns True iff the argument is Right x for some x.
allRight :: [Either a b] -> Either [Either a b] [b]Source

Returns Right input with tags stripped if all elements are to the right, and otherwise Left input: 

  allRight xs ==
    if all isRight xs then
      Right (map ((Right x) -> x) xs)
     else
      Left xs
tests :: IO BoolSource
Produced by Haddock version 2.6.1