(************************************************************************)
(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(*   \VV/  **************************************************************)
(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
(************************************************************************)

(*i $Id: constrextern.mli 10790 2008-04-14 22:34:19Z herbelin $ i*)

(*i*)
open Util
open Names
open Term
open Termops
open Sign
open Environ
open Libnames
open Nametab
open Rawterm
open Pattern
open Topconstr
open Notation
(*i*)

(* v7->v8 translation *)
val check_same_type : constr_expr -> constr_expr -> unit

(* Translation of pattern, cases pattern, rawterm and term into syntax
   trees for printing *)

val extern_cases_pattern : Idset.t -> cases_pattern -> cases_pattern_expr
val extern_rawconstr : Idset.t -> rawconstr -> constr_expr
val extern_rawtype : Idset.t -> rawconstr -> constr_expr
val extern_constr_pattern : names_context -> constr_pattern -> constr_expr

(* If [b=true] in [extern_constr b env c] then the variables in the first 
   level of quantification clashing with the variables in [env] are renamed *)

val extern_constr : bool -> env -> constr -> constr_expr
val extern_constr_in_scope : bool -> scope_name -> env -> constr -> constr_expr
val extern_reference : loc -> Idset.t -> global_reference -> reference
val extern_type : bool -> env -> types -> constr_expr
val extern_sort : sorts -> rawsort
val extern_rel_context : constr option -> env -> 
  rel_context -> local_binder list

(* Printing options *)
val print_implicits : bool ref
val print_implicits_defensive : bool ref
val print_arguments : bool ref
val print_evar_arguments : bool ref
val print_coercions : bool ref
val print_universes : bool ref
val print_no_symbol : bool ref
val print_projections : bool ref

(* Debug printing options *)
val set_debug_global_reference_printer :
  (loc -> global_reference -> reference) -> unit

(* This governs printing of implicit arguments. If [with_implicits] is
   on and not [with_arguments] then implicit args are printed prefixed
   by "!"; if [with_implicits] and [with_arguments] are both on the
   function and not the arguments is prefixed by "!" *)
val with_implicits : ('a -> 'b) -> 'a -> 'b
val with_arguments : ('a -> 'b) -> 'a -> 'b

(* This forces printing of coercions *)
val with_coercions : ('a -> 'b) -> 'a -> 'b

(* This forces printing universe names of Type{.} *)
val with_universes : ('a -> 'b) -> 'a -> 'b

(* This suppresses printing of numeral and symbols *)
val without_symbols : ('a -> 'b) -> 'a -> 'b

(* This prints metas as anonymous holes *)
val with_meta_as_hole : ('a -> 'b) -> 'a -> 'b