| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Vectorise.Generic.PADict
- buildPADict :: TyCon -> CoAxiom Unbranched -> TyCon -> TyCon -> SumRepr -> VM Var
Documentation
Arguments
| :: TyCon | tycon of the type being vectorised. |
| -> CoAxiom Unbranched | Coercion between the type and its vectorised representation. |
| -> TyCon | PData instance tycon |
| -> TyCon | PDatas instance tycon |
| -> SumRepr | representation used for the type being vectorised. |
| -> VM Var | name of the top-level dictionary function. |
Build the PA dictionary function for some type and hoist it to top level.
The PA dictionary holds fns that convert values to and from their vectorised representations.
@Recall the definition: class PR (PRepr a) => PA a where toPRepr :: a -> PRepr a fromPRepr :: PRepr a -> a toArrPRepr :: PData a -> PData (PRepr a) fromArrPRepr :: PData (PRepr a) -> PData a toArrPReprs :: PDatas a -> PDatas (PRepr a) fromArrPReprs :: PDatas (PRepr a) -> PDatas a
Example: df :: forall a. PR (PRepr a) -> PA a -> PA (T a) df = /a. (c:PR (PRepr a)) (d:PA a). MkPA c ($PR_df a d) ($toPRepr a d) ... $dPR_df :: forall a. PA a -> PR (PRepr (T a)) $dPR_df = .... $toRepr :: forall a. PA a -> T a -> PRepr (T a) $toPRepr = ... The "..." stuff is filled in by buildPAScAndMethods @