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|
||| Abstract syntax for terms.
module Obs.Term
import Data.Fin
import Obs.Sort
import Text.Bounded
import Text.PrettyPrint.Prettyprinter
%default total
-- Definition ------------------------------------------------------------------
public export
data Term : Nat -> Type where
Var : Bounds -> Fin n -> Term n
-- Sorts
Sort : Bounds -> Sort -> Term n
-- True
Top : Bounds -> Term n
Point : Bounds -> Term n
public export
record Definition (n : Nat) where
constructor MkDefinition
bounds : Bounds -- of the name
name : String
ty : Term n
tm : Term n
public export
data Block : Nat -> Type where
Nil : Block 0
(:<) : Block n -> Definition n -> Block (S n)
-- Operations ------------------------------------------------------------------
export
fullBounds : Term n -> Bounds
fullBounds (Var x i) = x
fullBounds (Sort x s) = x
fullBounds (Top x) = x
fullBounds (Point x) = x
-- Pretty Print ----------------------------------------------------------------
export
Pretty (Term n) where
prettyPrec d (Var x i) = pretty "$\{show i}"
prettyPrec d (Sort x s) = prettyPrec d s
prettyPrec d (Top x) = pretty "()"
prettyPrec d (Point x) = pretty "_"
export
Pretty (Definition n) where
pretty def = group $
pretty def.name <++> colon <+> softline <+> pretty def.ty <+> hardline <+>
pretty def.name <++> equals <+> softline <+> pretty def.tm
export
Pretty (Block n) where
pretty [] = neutral
pretty ([] :< def) = pretty def
pretty (blk :< def) = pretty blk <+> hardline <+> hardline <+> pretty def
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