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Just an idea of doing API for components: [API](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=41a88313146f4594e4f5e85f5c233d1c)
The benefits of providing that API is that…
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Input the following code into toplevel (both trunk and 4.13.1):
``` ocaml
type 'a t = T : ('a -> 'b) * ('b -> 'a) -> 'a t;;
type 'a t = T : ('a -> 'b) * ('b -> 'a) -> 'a t
let t = T ((fun …
dyzsr updated
2 years ago
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# Add support for higher-rank types
We propose to add support for higher-rank types, originally suggested by @polytypic, see https://twitter.com/VesaKarvonen/status/846239603627569152. This sugges…
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When building `headroom` with GHC 9.2, I see the following error:
```
[65 of 67] Compiling Headroom.Command.Bootstrap ( src/Headroom/Command/Bootstrap.hs, dist/build/Headroom/Command/Bootstrap.o, …
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Hello,
I write this Haskell code in `Sample.hs` file :
```haskell
{-# LANGUAGE GADTs #-}
-- GADT : schema field
data SchemaField schemaField where
SchemaField :: (Eq fieldType, Show fiel…
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### Your environment
Which OS do you use:
Ubuntu 21.10 (in a vm with a windows host)
Which lsp-client do you use:
Vscode with Haskell extension
Describe your project (alternative: link to t…
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**Original bug ID:** 7386
**Reporter:** @gasche
**Status:** acknowledged (set by @xavierleroy on 2017-02-23T16:06:20Z)
**Resolution:** open
**Priority:** normal
**Severity:** feature
**Version:*…
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Raise a warning when a pattern matching is redundant.
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Expanding on the Twitter comment here: https://twitter.com/arxanas/status/1457051545233604609
I wrote an article for my team on the topic of GADTs (called "Real World GADTs", haha). You can find a …