Idris2/libs/base/Language/Reflection/TT.idr
Edwin Brady e1dbcad2fc Make a start on reflection
Don't get too excited yet - I want this in so that it doesn't get too
out of sync, but I still have to think about exactly how it's going to
work in practice.
2020-05-29 22:40:29 +01:00

83 lines
2.0 KiB
Idris

module Language.Reflection.TT
public export
FilePos : Type
FilePos = (Int, Int)
public export
data FC : Type where
MkFC : String -> FilePos -> FilePos -> FC
EmptyFC : FC
public export
emptyFC : FC
emptyFC = EmptyFC
public export
data NameType : Type where
Bound : NameType
Func : NameType
DataCon : (tag : Int) -> (arity : Nat) -> NameType
TyCon : (tag : Int) -> (arity : Nat) -> NameType
public export
data Constant
= I Int
| BI Integer
| Str String
| Ch Char
| Db Double
| WorldVal
| IntType
| IntegerType
| StringType
| CharType
| DoubleType
| WorldType
public export
data Name = UN String
| MN String Int
| NS (List String) Name
public export
data Count = M0 | M1 | MW
public export
data PiInfo t = ImplicitArg | ExplicitArg | AutoImplicit | DefImplicit t
public export
data IsVar : Name -> Nat -> List Name -> Type where
First : IsVar n Z (n :: ns)
Later : IsVar n i ns -> IsVar n (S i) (m :: ns)
public export
data LazyReason = LInf | LLazy | LUnknown
-- Type checked terms in the core TT
public export
data TT : List Name -> Type where
Local : FC -> (idx : Nat) -> (0 prf : IsVar name idx vars) -> TT vars
Ref : FC -> NameType -> Name -> TT vars
Pi : FC -> Count -> PiInfo (TT vars) ->
(x : Name) -> (argTy : TT vars) -> (retTy : TT (x :: vars)) ->
TT vars
Lam : FC -> Count -> PiInfo (TT vars) ->
(x : Name) -> (argTy : TT vars) -> (scope : TT (x :: vars)) ->
TT vars
App : FC -> TT vars -> TT vars -> TT vars
TDelayed : FC -> LazyReason -> TT vars -> TT vars
TDelay : FC -> LazyReason -> (ty : TT vars) -> (arg : TT vars) -> TT vars
TForce : FC -> LazyReason -> TT vars -> TT vars
PrimVal : FC -> Constant -> TT vars
Erased : FC -> TT vars
TType : FC -> TT vars
public export
data TotalReq = Total | CoveringOnly | PartialOK
public export
data Visibility = Private | Export | Public