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Within LTS Haskell 24.65 (ghc-9.10.3)
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mapMaybe :: (a -> Maybe b) -> Word64Map a -> Word64Map bghc-lib-parser GHC.Data.Word64Map.Strict.Internal Map values and collect the Just results.
let f x = if x == "a" then Just "new a" else Nothing mapMaybe f (fromList [(5,"a"), (3,"b")]) == singleton 5 "new a"
mapMaybeWithKey :: (Key -> a -> Maybe b) -> Word64Map a -> Word64Map bghc-lib-parser GHC.Data.Word64Map.Strict.Internal Map keys/values and collect the Just results.
let f k _ = if k < 5 then Just ("key : " ++ (show k)) else Nothing mapMaybeWithKey f (fromList [(5,"a"), (3,"b")]) == singleton 3 "key : 3"traverseMaybeWithKey :: Applicative f => (Key -> a -> f (Maybe b)) -> Word64Map a -> f (Word64Map b)ghc-lib-parser GHC.Data.Word64Map.Strict.Internal Traverse keys/values and collect the Just results.
hsc_home_unit_maybe :: HscEnv -> Maybe HomeUnitghc-lib-parser GHC.Driver.Env No documentation available.
annProvenanceName_maybe :: UnXRec p => AnnProvenance p -> Maybe (IdP p)ghc-lib-parser GHC.Hs.Decls No documentation available.
getRecConArgs_maybe :: ConDecl GhcRn -> Maybe (LocatedL [LConDeclField GhcRn])ghc-lib-parser GHC.Hs.Decls Return Just fields if a data constructor declaration uses record syntax (i.e., RecCon), where fields are the field selectors. Otherwise, return Nothing.
pprMaybeWithDoc :: Maybe (LHsDoc name) -> SDoc -> SDocghc-lib-parser GHC.Hs.Doc See pprWithHsDoc
tupArgPresent_maybe :: forall (p :: Pass) . HsTupArg (GhcPass p) -> Maybe (LHsExpr (GhcPass p))ghc-lib-parser GHC.Hs.Expr No documentation available.
tupArgsPresent_maybe :: forall (p :: Pass) . [HsTupArg (GhcPass p)] -> Maybe [LHsExpr (GhcPass p)]ghc-lib-parser GHC.Hs.Expr No documentation available.
fromMaybeContext :: forall (p :: Pass) . Maybe (LHsContext (GhcPass p)) -> HsContext (GhcPass p)ghc-lib-parser GHC.Hs.Type No documentation available.