quox/lib/Quox/Token.idr

module Quox.Token

import Generics.Derive
import Text.Lexer

%default total
%language ElabReflection


public export
data Punc
= LParen  | RParen
| LSquare | RSquare
| LBrace  | RBrace
| Comma
| Colon | DblColon
| Dot
| Arrow | DblArrow
| Times | Triangle
| Wild
%runElab derive "Punc" [Generic, Meta, Eq, Ord, DecEq, Show]


public export
data Keyword
= Lam | Let | In | Case | Of | Omega
| Pi | Sigma | W
%runElab derive "Keyword" [Generic, Meta, Eq, Ord, DecEq, Show]


||| zero and one are separate because they are
||| quantity & dimension constants
public export
data Number = Zero | One | Other Nat
%runElab derive "Number" [Generic, Meta, Eq, Ord, DecEq, Show]


public export
data Token
= P Punc
| K Keyword
| Name String | Symbol String
| N Number | TYPE Nat
%runElab derive "Token" [Generic, Meta, Eq, Ord, DecEq, Show]


public export
BToken : Type
BToken = WithBounds Token