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+(************************************************************************)
+(*  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: modutil.mli,v 1.2.2.1 2004/07/16 19:30:08 herbelin Exp $ i*)
+
+open Names
+open Declarations
+open Environ
+open Libnames
+open Miniml
+
+(*s Functions upon modules missing in [Modops]. *) 
+
+(* Add _all_ direct subobjects of a module, not only those exported. 
+   Build on the [Modops.add_signature] model. *)
+
+val add_structure : module_path -> module_structure_body -> env -> env 
+
+(* Apply a module path substitution on a module.
+   Build on the [Modops.subst_modtype] model. *)
+
+val subst_module : substitution -> module_body -> module_body 
+val subst_meb : substitution -> module_expr_body -> module_expr_body
+val subst_msb : substitution -> module_structure_body -> module_structure_body
+
+(* Change a msid in a module type, to follow a module expr. *)
+
+val replicate_msid : module_expr_body -> module_type_body -> module_type_body
+
+(*s More utilities concerning [module_path]. *)
+
+val mp_length : module_path -> int
+val prefixes_mp : module_path -> MPset.t
+val modfile_of_mp : module_path -> module_path
+val common_prefix_from_list : module_path -> module_path list -> module_path
+val add_labels_mp : module_path -> label list -> module_path
+
+(*s Functions upon ML modules. *)
+
+val struct_ast_search : ml_ast -> ml_structure -> bool
+val struct_type_search : ml_type -> ml_structure -> bool
+
+type do_ref = global_reference -> unit 
+
+val decl_iter_references : do_ref -> do_ref -> do_ref -> ml_decl -> unit
+val spec_iter_references : do_ref -> do_ref -> do_ref -> ml_spec -> unit
+val struct_iter_references : do_ref -> do_ref -> do_ref -> ml_structure -> unit
+
+type 'a updown = { mutable up : 'a ; mutable down : 'a }
+
+val struct_get_references_set : ml_structure -> Refset.t updown
+val struct_get_references_list : ml_structure -> global_reference list updown
+
+val signature_of_structure : ml_structure -> ml_signature
+
+val get_decl_in_structure : global_reference -> ml_structure -> ml_decl
+
+(* Some transformations of ML terms. [optimize_struct] simplify
+   all beta redexes (when the argument does not occur, it is just
+   thrown away; when it occurs exactly once it is substituted; otherwise
+   a let-in redex is created for clarity) and iota redexes, plus some other
+   optimizations. *)
+
+val optimize_struct : 
+  extraction_params -> ml_decl list option -> ml_structure -> ml_structure