Skip to content

Add Generic instance #69

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

Merged
merged 1 commit into from
May 22, 2016
Merged

Add Generic instance #69

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 @@ -21,6 +21,7 @@
],
"dependencies": {
"purescript-foldable-traversable": "^1.0.0-rc.1",
"purescript-generics": "^1.0.0-rc.1",
"purescript-lazy": "^1.0.0-rc.1",
"purescript-unfoldable": "^1.0.0-rc.1"
},
Expand Down
3 changes: 3 additions & 0 deletions src/Data/List.purs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -94,6 +94,7 @@ import Control.MonadZero (class MonadZero)
import Control.Plus (class Plus)

import Data.Foldable (class Foldable, foldl, foldr, any)
import Data.Generic (class Generic)
import Data.Maybe (Maybe(..))
import Data.Monoid (class Monoid, mempty)
import Data.Traversable (class Traversable, traverse, sequence)
Expand Down Expand Up @@ -689,6 +690,8 @@ foldM f a (Cons b bs) = f a b >>= \a' -> foldM f a' bs
-- Instances -------------------------------------------------------------------
--------------------------------------------------------------------------------

derive instance genericList :: Generic a => Generic (List a)

instance showList :: Show a => Show (List a) where
show Nil = "Nil"
Copy link
Contributor

Choose a reason for hiding this comment

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

Wasn't this changed to render something like toList [1,2,3]?

Copy link
Contributor

Choose a reason for hiding this comment

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

Oh never mind, it's in an open PR.

show (Cons x xs) = "(Cons " <> show x <> " " <> show xs <> ")"
Expand Down