Skip to content

Derive Generic instance for Either #57

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 1 commit into from
Closed

Derive Generic instance for Either #57

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions bower.json
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
"purescript-bifunctors": "master",
"purescript-control": "master",
"purescript-foldable-traversable": "master",
"purescript-generics-rep": "master",
Copy link
Contributor

@JordanMartinez JordanMartinez Dec 20, 2020

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

We'll be moving the generics-rep repo's code into prelude, so we can drop the dependency on generics-rep.

"purescript-invariant": "master",
"purescript-maybe": "master",
"purescript-prelude": "master"
Expand Down
3 changes: 3 additions & 0 deletions src/Data/Either.purs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import Data.Foldable (class Foldable)
import Data.FoldableWithIndex (class FoldableWithIndex)
import Data.Functor.Invariant (class Invariant, imapF)
import Data.FunctorWithIndex (class FunctorWithIndex)
import Data.Generic.Rep (class Generic)
import Data.Maybe (Maybe(..), maybe, maybe')
import Data.Ord (class Ord1)
import Data.Traversable (class Traversable)
Expand Down Expand Up @@ -40,6 +41,8 @@ derive instance functorEither :: Functor (Either a)
instance functorWithIndexEither :: FunctorWithIndex Unit (Either a) where
mapWithIndex f = map $ f unit

derive instance genericEither :: Generic (Either a b) _

instance invariantEither :: Invariant (Either a) where
imap = imapF

Expand Down