| Safe Haskell | Safe |
|---|---|
| Language | Haskell2010 |
Copilot.Core.Expr
Description
Internal representation of Copilot stream expressions.
Synopsis
- type Id = Int
- type Name = String
- data Expr a where
- Const :: Typeable a => Type a -> a -> Expr a
- Drop :: Typeable a => Type a -> DropIdx -> Id -> Expr a
- Local :: Typeable a => Type a -> Type b -> Name -> Expr a -> Expr b -> Expr b
- Var :: Typeable a => Type a -> Name -> Expr a
- ExternVar :: Typeable a => Type a -> Name -> Maybe [a] -> Expr a
- Op1 :: Typeable a => Op1 a b -> Expr a -> Expr b
- Op2 :: (Typeable a, Typeable b) => Op2 a b c -> Expr a -> Expr b -> Expr c
- Op3 :: (Typeable a, Typeable b, Typeable c) => Op3 a b c d -> Expr a -> Expr b -> Expr c -> Expr d
- Label :: Typeable a => Type a -> String -> Expr a -> Expr a
- data UExpr = forall a.Typeable a => UExpr {}
- type DropIdx = Word32
Documentation
Internal representation of Copilot stream expressions.
The Core representation mimics the high-level Copilot stream, but the Core representation contains information about the types of elements in the stream.
Constructors
| Const :: Typeable a => Type a -> a -> Expr a | |
| Drop :: Typeable a => Type a -> DropIdx -> Id -> Expr a | |
| Local :: Typeable a => Type a -> Type b -> Name -> Expr a -> Expr b -> Expr b | |
| Var :: Typeable a => Type a -> Name -> Expr a | |
| ExternVar :: Typeable a => Type a -> Name -> Maybe [a] -> Expr a | |
| Op1 :: Typeable a => Op1 a b -> Expr a -> Expr b | |
| Op2 :: (Typeable a, Typeable b) => Op2 a b c -> Expr a -> Expr b -> Expr c | |
| Op3 :: (Typeable a, Typeable b, Typeable c) => Op3 a b c d -> Expr a -> Expr b -> Expr c -> Expr d | |
| Label :: Typeable a => Type a -> String -> Expr a -> Expr a |
A untyped expression that carries the information about the type of the expression as a value, as opposed to exposing it at type level (using an existential).