35 lines
797 B
Idris
35 lines
797 B
Idris
module Quox.Syntax.Term.TyConKind
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import Decidable.Equality
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import Derive.Prelude
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import Generics.Derive
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%language ElabReflection
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%default total
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public export
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data TyConKind = KTYPE | KPi | KSig | KEnum | KEq | KNat | KBOX
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%name TyConKind k
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%runElab derive "TyConKind" [Eq.Eq, Ord.Ord, Show.Show, Generic, Meta, DecEq]
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||| a list of all `TyConKind`s
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public export %inline
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allKinds : List TyConKind
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allKinds = %runElab do
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-- as a script so it stays up to date if there are more tycon kinds
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cs <- getCons $ fst !(lookupName "TyConKind")
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traverse (check . var) cs
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||| in `type-case`, how many variables are bound in this branch
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public export %inline
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arity : TyConKind -> Nat
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arity KTYPE = 0
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arity KPi = 2
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arity KSig = 2
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arity KEnum = 0
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arity KEq = 5
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arity KNat = 0
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arity KBOX = 1
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