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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: mlutil.mli 8724 2006-04-20 09:57:01Z letouzey $ i*)
-
-open Util
-open Names
-open Term
-open Libnames
-open Miniml
-
-(*s Utility functions over ML types with meta. *)
-
-val reset_meta_count : unit -> unit
-val new_meta : 'a -> ml_type
-
-val type_subst : int -> ml_type -> ml_type -> ml_type
-val type_subst_list : ml_type list -> ml_type -> ml_type
-val type_subst_vect : ml_type array -> ml_type -> ml_type
-
-val instantiation : ml_schema -> ml_type
-
-val needs_magic : ml_type * ml_type -> bool
-val put_magic_if : bool -> ml_ast -> ml_ast
-val put_magic : ml_type * ml_type -> ml_ast -> ml_ast
-
-(*s ML type environment. *)
-
-module Mlenv : sig 
-  type t 
-  val empty : t
-    
-  (* get the n-th more recently entered schema and instantiate it. *) 
-  val get : t -> int -> ml_type
-
-  (* Adding a type in an environment, after generalizing free meta *)
-  val push_gen : t -> ml_type -> t
-
-  (* Adding a type with no [Tvar] *)
-  val push_type : t -> ml_type -> t
-     
-  (* Adding a type with no [Tvar] nor [Tmeta] *)
-  val push_std_type : t -> ml_type -> t
-end
-
-(*s Utility functions over ML types without meta *)
-
-val type_mem_kn : kernel_name -> ml_type -> bool
-
-val type_maxvar : ml_type -> int
-
-val type_decomp : ml_type -> ml_type list * ml_type
-val type_recomp : ml_type list * ml_type -> ml_type
-
-val var2var' : ml_type -> ml_type 
-
-type abbrev_map = global_reference -> ml_type option
-
-val type_expand : abbrev_map -> ml_type -> ml_type 
-val type_to_sign : abbrev_map -> ml_type -> sign
-val type_to_signature : abbrev_map -> ml_type -> signature
-val type_expunge : abbrev_map -> ml_type -> ml_type
-
-val isDummy : ml_type -> bool
-val isKill : sign -> bool
-
-val case_expunge : signature -> ml_ast -> identifier list * ml_ast
-val term_expunge : signature -> identifier list * ml_ast -> ml_ast
-
-
-(*s Special identifiers. [dummy_name] is to be used for dead code
-    and will be printed as [_] in concrete (Caml) code. *)
-
-val anonymous : identifier
-val dummy_name : identifier
-val id_of_name : name -> identifier
-
-(*s [collect_lambda MLlam(id1,...MLlam(idn,t)...)] returns
-    the list [idn;...;id1] and the term [t]. *)
-
-val collect_lams : ml_ast -> identifier list * ml_ast
-val collect_n_lams : int -> ml_ast -> identifier list * ml_ast
-val nb_lams : ml_ast -> int
-
-val dummy_lams : ml_ast -> int -> ml_ast
-val anonym_or_dummy_lams : ml_ast -> signature -> ml_ast
-
-val eta_args_sign : int -> signature -> ml_ast list 
-
-(*s Utility functions over ML terms. *)
-
-val ast_map : (ml_ast -> ml_ast) -> ml_ast -> ml_ast
-val ast_map_lift : (int -> ml_ast -> ml_ast) -> int -> ml_ast -> ml_ast
-val ast_iter : (ml_ast -> unit) -> ml_ast -> unit
-val ast_occurs : int -> ml_ast -> bool
-val ast_occurs_itvl : int -> int -> ml_ast -> bool
-val ast_lift : int -> ml_ast -> ml_ast
-val ast_pop : ml_ast -> ml_ast
-val ast_subst : ml_ast -> ml_ast -> ml_ast
-
-val ast_glob_subst : ml_ast Refmap.t -> ml_ast -> ml_ast
-
-val normalize : ml_ast -> ml_ast 
-val optimize_fix : ml_ast -> ml_ast
-val inline : global_reference -> ml_ast -> bool
-
-
-