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(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(*i $Id$ i*)
(*s Target language for extraction: a core ML called MiniML. *)
open Pp
open Names
open Term
(*s ML type expressions. *)
type ml_type =
| Tvar of identifier
| Tapp of ml_type list
| Tarr of ml_type * ml_type
| Tglob of global_reference
| Tprop
| Tarity
(*s ML inductive types. *)
type ml_ind =
identifier list * global_reference * (global_reference * ml_type list) list
(*s ML terms. *)
type ml_ast =
| MLrel of int
| MLapp of ml_ast * ml_ast list
| MLlam of identifier * ml_ast
| MLletin of identifier * ml_ast * ml_ast
| MLglob of global_reference
| MLcons of global_reference * ml_ast list
| MLcase of ml_ast * (global_reference * identifier list * ml_ast) array
| MLfix of int * identifier array * ml_ast array
| MLexn of string
| MLprop
| MLarity
| MLcast of ml_ast * ml_type
| MLmagic of ml_ast
(*s ML declarations. *)
type ml_decl =
| Dtype of ml_ind list * bool (* cofix *)
| Dabbrev of global_reference * identifier list * ml_type
| Dglob of global_reference * ml_ast
| Dcustom of global_reference * string
(*s Pretty-printing of MiniML in a given concrete syntax is parameterized
by a function [pp_global] that pretty-prints global references.
The resulting pretty-printer is a module of type [Mlpp] providing
functions to print types, terms and declarations. *)
type extraction_params =
{ lang : string;
toplevel : bool;
mod_name : identifier option;
to_appear : global_reference list }
module type Mlpp_param = sig
val toplevel : bool
val globals : unit -> Idset.t
val rename_global : global_reference -> identifier
val pp_type_global : global_reference -> std_ppcmds
val pp_global : global_reference -> std_ppcmds
end
module type Mlpp = sig
val pp_type : ml_type -> std_ppcmds
val pp_ast : ml_ast -> std_ppcmds
val pp_decl : ml_decl -> std_ppcmds
end
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