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Simon Cruanes 2021-06-11 19:01:31 -04:00
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src/th-data/Sidekick_th_data.mli
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(** Theory for datatypes. *)
(** Datatype-oriented view of terms.
['c] is the representation of constructors
['t] is the representation of terms
- ['c] is the representation of constructors
- ['t] is the representation of terms
*)
type ('c,'t) data_view =
| T_cstor of 'c * 't IArray.t
| T_cstor of 'c * 't IArray.t (** [T_cstor (c,args)] is the term [c(args)] *)
| T_select of 'c * int * 't
| T_is_a of 'c * 't
| T_other of 't
(** [T_select (c,i,u)] means the [i]-th argument of [u], which should
start with constructor [c] *)
| T_is_a of 'c * 't (** [T_is_a (c,u)] means [u] starts with constructor [c] *)
| T_other of 't (** non-datatype term *)
(* TODO: use ['ts] rather than IArray? *)
(** View of types in a way that is directly useful for the theory of datatypes *)
type ('c, 'ty) data_ty_view =