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| author | Seraphime Kirkovski <kirkseraph@gmail.com> | 2016-06-06 12:29:38 +0200 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2016-06-06 15:07:18 +0200 |
| commit | a90085bd45239fffd65c01c24752a9bbcef346f1 (patch) | |
| tree | 41a85ba36720d8fba0a3296ea7a844dd9fc0042a /libraries/base/Data/Either.hs | |
| parent | 48e9a1f5521fa3185510d144dd28a87e452ce134 (diff) | |
| download | haskell-a90085bd45239fffd65c01c24752a9bbcef346f1.tar.gz | |
Add @since annotations to base instances
Add @since annotations to instances in `base`.
Test Plan:
* ./validate # some commets shouldn't break the build
* review the annotations for absurdities.
Reviewers: ekmett, goldfire, RyanGlScott, austin, hvr, bgamari
Reviewed By: RyanGlScott, hvr, bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2277
GHC Trac Issues: #11767
Diffstat (limited to 'libraries/base/Data/Either.hs')
| -rw-r--r-- | libraries/base/Data/Either.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libraries/base/Data/Either.hs b/libraries/base/Data/Either.hs index db340923e1..8bef30be9c 100644 --- a/libraries/base/Data/Either.hs +++ b/libraries/base/Data/Either.hs @@ -124,15 +124,18 @@ Left "parse error" data Either a b = Left a | Right b deriving (Eq, Ord, Read, Show) +-- | @since 3.0 instance Functor (Either a) where fmap _ (Left x) = Left x fmap f (Right y) = Right (f y) +-- | @since 3.0 instance Applicative (Either e) where pure = Right Left e <*> _ = Left e Right f <*> r = fmap f r +-- | @since 4.4.0.0 instance Monad (Either e) where Left l >>= _ = Left l Right r >>= k = k r |