Idris2/tests/idris2/reflection/reflection004/refdecl.idr

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1.4 KiB
Idris

import Data.Nat
import Data.Vect
import Language.Reflection
%language ElabReflection
fc : FC
fc = EmptyFC
quoteTest : TTImp -> TTImp -> List Decl
quoteTest f arg = `[ myFunc : ~(IApp fc f arg) ]
axes : (n : Nat) -> {auto gt : GT n 0} -> {auto lte : LTE n 4} -> Vect n String
axes 1 = ["x"]
axes 2 = "y" :: axes 1
axes 3 = "z" :: axes 2
axes 4 = "w" :: axes 3
axes (S (S (S (S (S _))))) {lte} = absurd lte
mkPoint : (n : Nat) -> {auto gt : GT n 0} -> {auto lte : LTE n 4} -> Decl
mkPoint n
= let type = "Point" ++ show n ++ "D" in
let mkMainUN = NS (MkNS ["Main"]) . UN . Basic in
IRecord emptyFC Nothing (specified Public) Nothing
(MkRecord emptyFC (mkMainUN type) [] [] (mkMainUN ("Mk" ++ type))
(toList $ map (\axis => MkIField emptyFC MW ExplicitArg (UN (Field axis)) `(Double)) (axes n)))
logDecls : TTImp -> Elab (Int -> Int)
logDecls v
= do declare [IClaim EmptyFC MW Public []
(MkTy EmptyFC EmptyFC `{ Main.foo }
`(Int -> Int -> Int) )]
declare `[ foo x y = x + y ]
declare [ mkPoint 3 ]
declare `[ multBy : Int -> Int
multBy x = x * ~(v) ]
declare `[ myplus : Nat -> Nat -> Nat
myplus Z y = y
myplus (S k) y = S (myplus k y) ]
check `( multBy )
mkMult : Int -> Int
mkMult = %runElab logDecls `(4)
point : Point3D
point = MkPoint3D 1.0 2.0 3.0