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| author | Inari Listenmaa <inari.listenmaa@gmail.com> | 2024-09-09 19:43:39 +0200 |
|---|---|---|
| committer | Inari Listenmaa <inari.listenmaa@gmail.com> | 2025-08-02 16:39:31 +0200 |
| commit | b914a25de326dd937e3a1d05f4eefb46af6da7b4 (patch) | |
| tree | e816d5ec4b91425f3f7e41dd8bd75a2681ff524c /src/compiler/GF/Infra/CheckM.hs | |
| parent | 1037b209ae225d5de604ff832d915c590ced4c38 (diff) | |
define return in terms of pure, >> as *>, mappend as <>
In preparation for deprecation, see https://gitlab.haskell.org/ghc/ghc/-/wikis/proposal/semigroup-monoid and https://gitlab.haskell.org/ghc/ghc/-/wikis/proposal/monad-of-no-return
Diffstat (limited to 'src/compiler/GF/Infra/CheckM.hs')
| -rw-r--r-- | src/compiler/GF/Infra/CheckM.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/compiler/GF/Infra/CheckM.hs b/src/compiler/GF/Infra/CheckM.hs index a5ff7148a..1dd26dd5c 100644 --- a/src/compiler/GF/Infra/CheckM.hs +++ b/src/compiler/GF/Infra/CheckM.hs @@ -48,7 +48,7 @@ newtype Check a instance Functor Check where fmap = liftM instance Monad Check where - return x = Check $ \{-ctxt-} ws -> (ws,Success x) + return = pure f >>= g = Check $ \{-ctxt-} ws -> case unCheck f {-ctxt-} ws of (ws,Success x) -> unCheck (g x) {-ctxt-} ws @@ -58,7 +58,7 @@ instance Fail.MonadFail Check where fail = raise instance Applicative Check where - pure = return + pure x = Check $ \{-ctxt-} ws -> (ws,Success x) (<*>) = ap instance ErrorMonad Check where |