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-rw-r--r--interp/constrexpr.ml2
-rw-r--r--interp/constrexpr_ops.ml2
-rw-r--r--interp/constrexpr_ops.mli2
-rw-r--r--interp/constrextern.ml2
-rw-r--r--interp/constrextern.mli2
-rw-r--r--interp/constrintern.ml76
-rw-r--r--interp/constrintern.mli10
-rw-r--r--interp/declare.ml2
-rw-r--r--interp/declare.mli2
-rw-r--r--interp/deprecation.ml2
-rw-r--r--interp/deprecation.mli2
-rw-r--r--interp/dumpglob.ml2
-rw-r--r--interp/dumpglob.mli2
-rw-r--r--interp/genintern.ml2
-rw-r--r--interp/genintern.mli2
-rw-r--r--interp/impargs.ml91
-rw-r--r--interp/impargs.mli12
-rw-r--r--interp/implicit_quantifiers.ml115
-rw-r--r--interp/implicit_quantifiers.mli23
-rw-r--r--interp/modintern.ml2
-rw-r--r--interp/modintern.mli2
-rw-r--r--interp/notation.ml2
-rw-r--r--interp/notation.mli2
-rw-r--r--interp/notation_ops.ml2
-rw-r--r--interp/notation_ops.mli2
-rw-r--r--interp/notation_term.ml2
-rw-r--r--interp/reserve.ml2
-rw-r--r--interp/reserve.mli2
-rw-r--r--interp/smartlocate.ml2
-rw-r--r--interp/smartlocate.mli2
-rw-r--r--interp/stdarg.ml2
-rw-r--r--interp/stdarg.mli2
-rw-r--r--interp/syntax_def.ml2
-rw-r--r--interp/syntax_def.mli2
34 files changed, 127 insertions, 256 deletions
diff --git a/interp/constrexpr.ml b/interp/constrexpr.ml
index 3ebbbdfb88..e4af0fcee0 100644
--- a/interp/constrexpr.ml
+++ b/interp/constrexpr.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/constrexpr_ops.ml b/interp/constrexpr_ops.ml
index bcb2f34377..8fce24249c 100644
--- a/interp/constrexpr_ops.ml
+++ b/interp/constrexpr_ops.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/constrexpr_ops.mli b/interp/constrexpr_ops.mli
index f1a8ed202f..3ed240d356 100644
--- a/interp/constrexpr_ops.mli
+++ b/interp/constrexpr_ops.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/constrextern.ml b/interp/constrextern.ml
index 701c07dc8d..8573dccdf9 100644
--- a/interp/constrextern.ml
+++ b/interp/constrextern.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/constrextern.mli b/interp/constrextern.mli
index f09b316cd6..7b8b93377b 100644
--- a/interp/constrextern.mli
+++ b/interp/constrextern.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/constrintern.ml b/interp/constrintern.ml
index 1a81dc41a1..be8f99028c 100644
--- a/interp/constrintern.ml
+++ b/interp/constrintern.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
@@ -372,6 +372,9 @@ let check_hidden_implicit_parameters ?loc id impls =
strbrk "a parameter of the inductive type; bound variables in " ++
strbrk "the type of a constructor shall use a different name.")
+let pure_push_name_env (id,implargs) env =
+ {env with ids = Id.Set.add id env.ids; impls = Id.Map.add id implargs env.impls}
+
let push_name_env ?(global_level=false) ntnvars implargs env =
let open CAst in
function
@@ -386,15 +389,23 @@ let push_name_env ?(global_level=false) ntnvars implargs env =
set_var_scope ?loc id false (env.tmp_scope,env.scopes) ntnvars;
if global_level then Dumpglob.dump_definition CAst.(make ?loc id) true "var"
else Dumpglob.dump_binding ?loc id;
- {env with ids = Id.Set.add id env.ids; impls = Id.Map.add id implargs env.impls}
+ pure_push_name_env (id,implargs) env
+
+let remember_binders_impargs env bl =
+ List.map_filter (fun (na,_,_,_) ->
+ match na with
+ | Anonymous -> None
+ | Name id -> Some (id,Id.Map.find id env.impls)) bl
+
+let restore_binders_impargs env l =
+ List.fold_right pure_push_name_env l env
let intern_generalized_binder ?(global_level=false) intern_type ntnvars
env {loc;v=na} b' t ty =
let ids = (match na with Anonymous -> fun x -> x | Name na -> Id.Set.add na) env.ids in
let ty, ids' =
- if t then ty, ids else
- Implicit_quantifiers.implicit_application ids
- Implicit_quantifiers.combine_params_freevar ty
+ if t then ty, ids
+ else Implicit_quantifiers.implicit_application ids ty
in
let ty' = intern_type {env with ids = ids; unb = true} ty in
let fvs = Implicit_quantifiers.generalizable_vars_of_glob_constr ~bound:ids ~allowed:ids' ty' in
@@ -1300,7 +1311,7 @@ let find_pattern_variable qid =
if qualid_is_ident qid then qualid_basename qid
else raise (InternalizationError(qid.CAst.loc,NotAConstructor qid))
-let check_duplicate loc fields =
+let check_duplicate ?loc fields =
let eq (ref1, _) (ref2, _) = qualid_eq ref1 ref2 in
let dups = List.duplicates eq fields in
match dups with
@@ -1345,7 +1356,7 @@ let sort_fields ~complete loc fields completer =
try Nametab.shortest_qualid_of_global ?loc Id.Set.empty global_record_id
with Not_found ->
anomaly (str "Environment corruption for records.") in
- let () = check_duplicate loc fields in
+ let () = check_duplicate ?loc fields in
let (end_index, (* one past the last field index *)
first_field_index, (* index of the first field of the record *)
proj_list) (* list of projections *)
@@ -1835,7 +1846,7 @@ let internalize globalenv env pattern_mode (_, ntnvars as lvar) c =
in
apply_impargs c env imp subscopes l loc
- | CFix ({ CAst.loc = locid; v = iddef}, dl) ->
+ | CFix ({ CAst.loc = locid; v = iddef}, dl) ->
let lf = List.map (fun ({CAst.v = id},_,_,_,_) -> id) dl in
let dl = Array.of_list dl in
let n =
@@ -1857,14 +1868,18 @@ let internalize globalenv env pattern_mode (_, ntnvars as lvar) c =
rbefore) recarg in
let (env',rbl) = List.fold_left intern_local_binder (env',rbefore) after in
let bl = List.rev (List.map glob_local_binder_of_extended rbl) in
- (n, bl, intern_type env' ty, env')) dl in
- let idl = Array.map2 (fun (_,_,_,_,bd) (a,b,c,env') ->
- let env'' = List.fold_left_i (fun i en name ->
- let (_,bli,tyi,_) = idl_temp.(i) in
- let fix_args = (List.map (fun (na, bk, _, _) -> (build_impls bk na)) bli) in
- push_name_env ntnvars (impls_type_list ~args:fix_args tyi)
- en (CAst.make @@ Name name)) 0 env' lf in
- (a,b,c,intern {env'' with tmp_scope = None} bd)) dl idl_temp in
+ let bl_impls = remember_binders_impargs env' bl in
+ (n, bl, intern_type env' ty, bl_impls)) dl in
+ (* We add the recursive functions to the environment *)
+ let env_rec = List.fold_left_i (fun i en name ->
+ let (_,bli,tyi,_) = idl_temp.(i) in
+ let fix_args = (List.map (fun (na, bk, _, _) -> build_impls bk na) bli) in
+ push_name_env ntnvars (impls_type_list ~args:fix_args tyi)
+ en (CAst.make @@ Name name)) 0 env lf in
+ let idl = Array.map2 (fun (_,_,_,_,bd) (n,bl,ty,before_impls) ->
+ (* We add the binders common to body and type to the environment *)
+ let env_body = restore_binders_impargs env_rec before_impls in
+ (n,bl,ty,intern {env_body with tmp_scope = None} bd)) dl idl_temp in
DAst.make ?loc @@
GRec (GFix
(Array.map (fun (ro,_,_,_) -> ro) idl,n),
@@ -1884,15 +1899,18 @@ let internalize globalenv env pattern_mode (_, ntnvars as lvar) c =
let idl_tmp = Array.map
(fun ({ CAst.loc; v = id },bl,ty,_) ->
let (env',rbl) = List.fold_left intern_local_binder (env,[]) bl in
- (List.rev (List.map glob_local_binder_of_extended rbl),
- intern_type env' ty,env')) dl in
- let idl = Array.map2 (fun (_,_,_,bd) (b,c,env') ->
- let env'' = List.fold_left_i (fun i en name ->
- let (bli,tyi,_) = idl_tmp.(i) in
- let cofix_args = List.map (fun (na, bk, _, _) -> (build_impls bk na)) bli in
- push_name_env ntnvars (impls_type_list ~args:cofix_args tyi)
- en (CAst.make @@ Name name)) 0 env' lf in
- (b,c,intern {env'' with tmp_scope = None} bd)) dl idl_tmp in
+ let bl = List.rev (List.map glob_local_binder_of_extended rbl) in
+ let bl_impls = remember_binders_impargs env' bl in
+ (bl,intern_type env' ty,bl_impls)) dl in
+ let env_rec = List.fold_left_i (fun i en name ->
+ let (bli,tyi,_) = idl_tmp.(i) in
+ let cofix_args = List.map (fun (na, bk, _, _) -> build_impls bk na) bli in
+ push_name_env ntnvars (impls_type_list ~args:cofix_args tyi)
+ en (CAst.make @@ Name name)) 0 env lf in
+ let idl = Array.map2 (fun (_,_,_,bd) (b,c,bl_impls) ->
+ (* We add the binders common to body and type to the environment *)
+ let env_body = restore_binders_impargs env_rec bl_impls in
+ (b,c,intern {env_body with tmp_scope = None} bd)) dl idl_tmp in
DAst.make ?loc @@
GRec (GCoFix n,
Array.of_list lf,
@@ -2435,10 +2453,8 @@ let interp_glob_context_evars ?(program_mode=false) env sigma k bl =
let r = Retyping.relevance_of_type env sigma t in
let d = LocalAssum (make_annot na r,t) in
let impls =
- if k == Implicit then
- let na = match na with Name n -> Some n | Anonymous -> None in
- (ExplByPos (n, na), (true, true, true)) :: impls
- else impls
+ if k == Implicit then CAst.make (Some (na,true)) :: impls
+ else CAst.make None :: impls
in
(push_rel d env, sigma, d::params, succ n, impls)
| Some b ->
@@ -2447,7 +2463,7 @@ let interp_glob_context_evars ?(program_mode=false) env sigma k bl =
let d = LocalDef (make_annot na r, c, t) in
(push_rel d env, sigma, d::params, n, impls))
(env,sigma,[],k+1,[]) (List.rev bl)
- in sigma, ((env, par), impls)
+ in sigma, ((env, par), List.rev impls)
let interp_context_evars ?program_mode ?(global_level=false) ?(impl_env=empty_internalization_env) ?(shift=0) env sigma params =
let int_env,bl = intern_context global_level env impl_env params in
diff --git a/interp/constrintern.mli b/interp/constrintern.mli
index 0d4bc91f57..6c1f4898d9 100644
--- a/interp/constrintern.mli
+++ b/interp/constrintern.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
@@ -61,10 +61,10 @@ type internalization_env = var_internalization_data Id.Map.t
val empty_internalization_env : internalization_env
val compute_internalization_data : env -> evar_map -> var_internalization_type ->
- types -> Impargs.manual_explicitation list -> var_internalization_data
+ types -> Impargs.manual_implicits -> var_internalization_data
val compute_internalization_env : env -> evar_map -> ?impls:internalization_env -> var_internalization_type ->
- Id.t list -> types list -> Impargs.manual_explicitation list list ->
+ Id.t list -> types list -> Impargs.manual_implicits list ->
internalization_env
type ltac_sign = {
@@ -189,3 +189,7 @@ val for_grammar : ('a -> 'b) -> 'a -> 'b
(** Placeholder for global option, should be moved to a parameter *)
val get_asymmetric_patterns : unit -> bool
+
+val check_duplicate : ?loc:Loc.t -> (qualid * constr_expr) list -> unit
+(** Check that a list of record field definitions doesn't contain
+ duplicates. *)
diff --git a/interp/declare.ml b/interp/declare.ml
index 17de06ed57..77313a54de 100644
--- a/interp/declare.ml
+++ b/interp/declare.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/declare.mli b/interp/declare.mli
index e2485d7cf0..0f64235048 100644
--- a/interp/declare.mli
+++ b/interp/declare.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/deprecation.ml b/interp/deprecation.ml
index b6f0dceb89..3b02ba4664 100644
--- a/interp/deprecation.ml
+++ b/interp/deprecation.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/deprecation.mli b/interp/deprecation.mli
index aab87c11a2..f8083c2a5b 100644
--- a/interp/deprecation.mli
+++ b/interp/deprecation.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/dumpglob.ml b/interp/dumpglob.ml
index 274f9b851a..e1269025a4 100644
--- a/interp/dumpglob.ml
+++ b/interp/dumpglob.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/dumpglob.mli b/interp/dumpglob.mli
index 554da7603f..18955985a0 100644
--- a/interp/dumpglob.mli
+++ b/interp/dumpglob.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/genintern.ml b/interp/genintern.ml
index 1b736b7977..e74f8d5f10 100644
--- a/interp/genintern.ml
+++ b/interp/genintern.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/genintern.mli b/interp/genintern.mli
index 4100f39029..5619a7b648 100644
--- a/interp/genintern.mli
+++ b/interp/genintern.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/impargs.ml b/interp/impargs.ml
index f3cdd64633..9977b29310 100644
--- a/interp/impargs.ml
+++ b/interp/impargs.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
@@ -20,7 +20,6 @@ open Lib
open Libobject
open EConstr
open Reductionops
-open Constrexpr
open Namegen
module NamedDecl = Context.Named.Declaration
@@ -341,77 +340,30 @@ let rec prepare_implicits f = function
Some (id,imp,(set_maximality imps' f.maximal,true)) :: imps'
| _::imps -> None :: prepare_implicits f imps
-(*
-If found, returns Some (x,(b,fi,fo)) and l with the entry removed,
-otherwise returns None and l unchanged.
- *)
-let assoc_by_pos k l =
- let rec aux = function
- (ExplByPos (k', x), b) :: tl when Int.equal k k' -> Some (x,b), tl
- | hd :: tl -> let (x, tl) = aux tl in x, hd :: tl
- | [] -> raise Not_found
- in try aux l with Not_found -> None, l
-
-let check_correct_manual_implicits autoimps l =
- List.iter (function
- | ExplByName id,(b,fi,forced) ->
- if not forced then
- user_err
- (str "Wrong or non-dependent implicit argument name: " ++ Id.print id ++ str ".")
- | ExplByPos (i,_id),_t ->
- if i<1 || i>List.length autoimps then
- user_err
- (str "Bad implicit argument number: " ++ int i ++ str ".")
- else
- user_err
- (str "Cannot set implicit argument number " ++ int i ++
- str ": it has no name.")) l
-
-(* Take a list l of explicitations, and map them to positions. *)
-let flatten_explicitations l autoimps =
- let rec aux k l = function
- | (Name id,_)::imps ->
- let value, l' =
- try
- let eq = Constrexpr_ops.explicitation_eq in
- let flags = List.assoc_f eq (ExplByName id) l in
- Some (Some id, flags), List.remove_assoc_f eq (ExplByName id) l
- with Not_found -> assoc_by_pos k l
- in value :: aux (k+1) l' imps
- | (Anonymous,_)::imps ->
- let value, l' = assoc_by_pos k l
- in value :: aux (k+1) l' imps
- | [] when List.is_empty l -> []
- | [] ->
- check_correct_manual_implicits autoimps l;
- []
- in aux 1 l autoimps
-
let set_manual_implicits flags enriching autoimps l =
- if not (List.distinct l) then
- user_err Pp.(str "Some parameters are referred more than once.");
(* Compare with automatic implicits to recover printing data and names *)
let rec merge k autoimps explimps = match autoimps, explimps with
| autoimp::autoimps, explimp::explimps ->
let imps' = merge (k+1) autoimps explimps in
- begin match autoimp, explimp with
- | (Name id,_), Some (_, (b, fi, _)) ->
- Some (id, Manual, (set_maximality imps' b, fi))
+ begin match autoimp, explimp.CAst.v with
+ | (Name id,_), Some (_,max) ->
+ Some (id, Manual, (set_maximality imps' max, true))
| (Name id,Some exp), None when enriching ->
Some (id, exp, (set_maximality imps' flags.maximal, true))
| (Name _,_), None -> None
- | (Anonymous,_), Some (Some id, (b, fi, true)) ->
- Some (id,Manual,(b,fi))
- | (Anonymous,_), Some (None, (b, fi, true)) ->
+ | (Anonymous,_), Some (Name id,max) ->
+ Some (id,Manual,(max,true))
+ | (Anonymous,_), Some (Anonymous,max) ->
let id = Id.of_string ("arg_" ^ string_of_int k) in
- Some (id,Manual,(b,fi))
- | (Anonymous,_), Some (_, (_, _, false)) -> None
+ Some (id,Manual,(max,true))
| (Anonymous,_), None -> None
end :: imps'
| [], [] -> []
- (* flatten_explicitations returns a list of the same length as autoimps *)
- | _ -> assert false
- in merge 1 autoimps (flatten_explicitations l autoimps)
+ | [], _ -> assert false
+ (* possibly more automatic than manual implicit arguments n
+ when the conclusion is an unfoldable constant *)
+ | autoimps, [] -> merge k autoimps [CAst.make None]
+ in merge 1 autoimps l
let compute_semi_auto_implicits env sigma f t =
if not f.auto then [DefaultImpArgs, []]
@@ -642,9 +594,7 @@ let declare_mib_implicits kn =
(inImplicits (ImplMutualInductive (kn,flags),List.flatten imps))
(* Declare manual implicits *)
-type manual_explicitation = Constrexpr.explicitation * (bool * bool * bool)
-
-type manual_implicits = manual_explicitation list
+type manual_implicits = (Name.t * bool) option CAst.t list
let compute_implicits_with_manual env sigma typ enriching l =
let autoimpls = compute_auto_implicits env sigma !implicit_args enriching typ in
@@ -669,8 +619,6 @@ let projection_implicits env p impls =
CList.skipn_at_least npars impls
let declare_manual_implicits local ref ?enriching l =
- assert (List.for_all (fun (_, (max, fi, fu)) -> fi && fu) l);
- assert (List.for_all (fun (ex, _) -> match ex with ExplByPos (_,_) -> true | _ -> false) l);
let flags = !implicit_args in
let env = Global.env () in
let sigma = Evd.from_env env in
@@ -685,9 +633,8 @@ let declare_manual_implicits local ref ?enriching l =
in add_anonymous_leaf (inImplicits (req,[ref,l]))
let maybe_declare_manual_implicits local ref ?enriching l =
- match l with
- | [] -> ()
- | _ -> declare_manual_implicits local ref ?enriching l
+ if List.exists (fun x -> x.CAst.v <> None) l then
+ declare_manual_implicits local ref ?enriching l
(* TODO: either turn these warnings on and document them, or handle these cases sensibly *)
@@ -750,12 +697,6 @@ let extract_impargs_data impls =
| [] -> [] in
aux 0 impls
-let lift_implicits n =
- List.map (fun x ->
- match fst x with
- ExplByPos (k, id) -> ExplByPos (k + n, id), snd x
- | _ -> x)
-
let make_implicits_list l = [DefaultImpArgs, l]
let rec drop_first_implicits p l =
diff --git a/interp/impargs.mli b/interp/impargs.mli
index 1099074c63..90a7944642 100644
--- a/interp/impargs.mli
+++ b/interp/impargs.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
@@ -84,13 +84,7 @@ val force_inference_of : implicit_status -> bool
val positions_of_implicits : implicits_list -> int list
-(** A [manual_explicitation] is a tuple of a positional or named explicitation with
- maximal insertion, force inference and force usage flags. Forcing usage makes
- the argument implicit even if the automatic inference considers it not inferable. *)
-type manual_explicitation = Constrexpr.explicitation *
- (maximal_insertion * force_inference * bool)
-
-type manual_implicits = manual_explicitation list
+type manual_implicits = (Name.t * bool) option CAst.t list
val compute_implicits_with_manual : env -> Evd.evar_map -> types -> bool ->
manual_implicits -> implicit_status list
@@ -131,8 +125,6 @@ val implicits_of_global : GlobRef.t -> implicits_list list
val extract_impargs_data :
implicits_list list -> ((int * int) option * implicit_status list) list
-val lift_implicits : int -> manual_implicits -> manual_implicits
-
val make_implicits_list : implicit_status list -> implicits_list list
val drop_first_implicits : int -> implicits_list -> implicits_list
diff --git a/interp/implicit_quantifiers.ml b/interp/implicit_quantifiers.ml
index bac46c2d2f..9f6281ae15 100644
--- a/interp/implicit_quantifiers.ml
+++ b/interp/implicit_quantifiers.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
@@ -23,9 +23,6 @@ open Libobject
open Nameops
open Context.Rel.Declaration
-exception MismatchedContextInstance of Environ.env * Typeclasses_errors.contexts * constr_expr list * Constr.rel_context (* found, expected *)
-let mismatched_ctx_inst_err env c n m = raise (MismatchedContextInstance (env, c, n, m))
-
module RelDecl = Context.Rel.Declaration
(*i*)
@@ -66,9 +63,6 @@ let declare_generalizable ~local gen =
let find_generalizable_ident id = Id.Pred.mem (root_of_id id) !generalizable_table
-let ids_of_list l =
- List.fold_right Id.Set.add l Id.Set.empty
-
let is_global id =
try ignore (Nametab.locate_extended (qualid_of_ident id)); true
with Not_found -> false
@@ -105,26 +99,6 @@ let free_vars_of_constr_expr c ?(bound=Id.Set.empty) l =
| _ -> Constrexpr_ops.fold_constr_expr_with_binders (fun a l -> Id.Set.add a l) aux bdvars l c
in aux bound l c
-let ids_of_names l =
- List.fold_left (fun acc x -> match x.CAst.v with Name na -> na :: acc | Anonymous -> acc) [] l
-
-let free_vars_of_binders ?(bound=Id.Set.empty) l (binders : local_binder_expr list) =
- let rec aux bdvars l c = match c with
- ((CLocalAssum (n, _, c)) :: tl) ->
- let bound = ids_of_names n in
- let l' = free_vars_of_constr_expr c ~bound:bdvars l in
- aux (Id.Set.union (ids_of_list bound) bdvars) l' tl
-
- | ((CLocalDef (n, c, t)) :: tl) ->
- let bound = match n.CAst.v with Anonymous -> [] | Name n -> [n] in
- let l' = free_vars_of_constr_expr c ~bound:bdvars l in
- let l'' = Option.fold_left (fun l t -> free_vars_of_constr_expr t ~bound:bdvars l) l' t in
- aux (Id.Set.union (ids_of_list bound) bdvars) l'' tl
-
- | CLocalPattern _ :: tl -> assert false
- | [] -> bdvars, l
- in aux bound l binders
-
let generalizable_vars_of_glob_constr ?(bound=Id.Set.empty) ?(allowed=Id.Set.empty) =
let rec vars bound vs c = match DAst.get c with
| GVar id ->
@@ -149,7 +123,7 @@ let next_name_away_from na avoid =
| Anonymous -> make_fresh avoid (Global.env ()) (Id.of_string "anon")
| Name id -> make_fresh avoid (Global.env ()) id
-let combine_params avoid fn applied needed =
+let combine_params avoid applied needed =
let named, applied =
List.partition
(function
@@ -167,47 +141,30 @@ let combine_params avoid fn applied needed =
(fun x -> match x with (t, Some {CAst.loc;v=ExplByName id}) -> id, t | _ -> assert false)
named
in
- let is_unset (_, decl) = match decl with
- | LocalAssum _ -> true
- | LocalDef _ -> false
- in
- let needed = List.filter is_unset needed in
let rec aux ids avoid app need =
match app, need with
- [], [] -> List.rev ids, avoid
- | app, (_, (LocalAssum ({binder_name=Name id}, _) | LocalDef ({binder_name=Name id}, _, _))) :: need when Id.List.mem_assoc id named ->
+ | _, (_, LocalDef _) :: need -> aux ids avoid app need
+
+ | [], [] -> List.rev ids, avoid
+
+ | app, (_, (LocalAssum ({binder_name=Name id}, _))) :: need when Id.List.mem_assoc id named ->
aux (Id.List.assoc id named :: ids) avoid app need
- | (x, None) :: app, (None, (LocalAssum ({binder_name=Name id}, _) | LocalDef ({binder_name=Name id}, _, _))) :: need ->
+ | (x, None) :: app, (None, (LocalAssum ({binder_name=Name id}, _))) :: need ->
aux (x :: ids) avoid app need
- | _, (Some cl, _ as d) :: need ->
- let t', avoid' = fn avoid d in
- aux (t' :: ids) avoid' app need
-
| x :: app, (None, _) :: need -> aux (fst x :: ids) avoid app need
- | [], (None, _ as decl) :: need ->
- let t', avoid' = fn avoid decl in
- aux (t' :: ids) avoid' app need
+ | _, (Some _, decl) :: need | [], (None, decl) :: need ->
+ let id' = next_name_away_from (RelDecl.get_name decl) avoid in
+ let t' = CAst.make @@ CRef (qualid_of_ident id',None) in
+ aux (t' :: ids) (Id.Set.add id' avoid) app need
| (x,_) :: _, [] ->
user_err ?loc:(Constrexpr_ops.constr_loc x) (str "Typeclass does not expect more arguments")
- in aux [] avoid applied needed
-
-let combine_params_freevar avoid (_, decl) =
- let id' = next_name_away_from (RelDecl.get_name decl) avoid in
- (CAst.make @@ CRef (qualid_of_ident id',None), Id.Set.add id' avoid)
-
-let destClassApp cl =
- let open CAst in
- let loc = cl.loc in
- match cl.v with
- | CApp ((None, { v = CRef (ref, inst) }), l) -> CAst.make ?loc (ref, List.map fst l, inst)
- | CAppExpl ((None, ref, inst), l) -> CAst.make ?loc (ref, l, inst)
- | CRef (ref, inst) -> CAst.make ?loc:cl.loc (ref, [], inst)
- | _ -> raise Not_found
+ in
+ aux [] avoid applied needed
let destClassAppExpl cl =
let open CAst in
@@ -217,7 +174,7 @@ let destClassAppExpl cl =
| CRef (ref, inst) -> CAst.make ?loc:cl.loc (ref, [], inst)
| _ -> raise Not_found
-let implicit_application env ?(allow_partial=true) f ty =
+let implicit_application env ty =
let is_class =
try
let ({CAst.v=(qid, _, _)} as clapp) = destClassAppExpl ty in
@@ -230,24 +187,13 @@ let implicit_application env ?(allow_partial=true) f ty =
match is_class with
| None -> ty, env
| Some ({CAst.loc;v=(id, par, inst)}, gr) ->
- let avoid = Id.Set.union env (ids_of_list (free_vars_of_constr_expr ty ~bound:env [])) in
+ let avoid = Id.Set.union env (Id.Set.of_list (free_vars_of_constr_expr ty ~bound:env [])) in
let env = Global.env () in
let sigma = Evd.from_env env in
let c = class_info env sigma gr in
let (ci, rd) = c.cl_context in
- if not allow_partial then
- begin
- let opt_succ x n = match x with
- | None -> succ n
- | Some _ -> n
- in
- let applen = List.fold_left (fun acc (x, y) -> opt_succ y acc) 0 par in
- let needlen = List.fold_left (fun acc x -> opt_succ x acc) 0 ci in
- if not (Int.equal needlen applen) then
- mismatched_ctx_inst_err (Global.env ()) Typeclasses_errors.Parameters (List.map fst par) rd
- end;
let pars = List.rev (List.combine ci rd) in
- let args, avoid = combine_params avoid f par pars in
+ let args, avoid = combine_params avoid par pars in
CAst.make ?loc @@ CAppExpl ((None, id, inst), args), avoid
let warn_ignoring_implicit_status =
@@ -257,32 +203,23 @@ let warn_ignoring_implicit_status =
Name.print na ++ strbrk " and following binders")
let implicits_of_glob_constr ?(with_products=true) l =
- let add_impl i na bk l = match bk with
- | Implicit ->
- let name =
- match na with
- | Name id -> Some id
- | Anonymous -> None
- in
- (ExplByPos (i, name), (true, true, true)) :: l
- | _ -> l
+ let add_impl ?loc na bk l = match bk with
+ | Implicit -> CAst.make ?loc (Some (na,true)) :: l
+ | _ -> CAst.make ?loc None :: l
in
- let rec aux i c =
- let abs na bk b =
- add_impl i na bk (aux (succ i) b)
- in
+ let rec aux c =
match DAst.get c with
| GProd (na, bk, t, b) ->
- if with_products then abs na bk b
+ if with_products then add_impl na bk (aux b)
else
let () = match bk with
| Implicit -> warn_ignoring_implicit_status na ?loc:c.CAst.loc
| _ -> ()
in []
- | GLambda (na, bk, t, b) -> abs na bk b
- | GLetIn (na, b, t, c) -> aux i c
+ | GLambda (na, bk, t, b) -> add_impl ?loc:t.CAst.loc na bk (aux b)
+ | GLetIn (na, b, t, c) -> aux c
| GRec (fix_kind, nas, args, tys, bds) ->
let nb = match fix_kind with |GFix (_, n) -> n | GCoFix n -> n in
- List.fold_left_i (fun i l (na,bk,_,_) -> add_impl i na bk l) i (aux (List.length args.(nb) + i) bds.(nb)) args.(nb)
+ List.fold_right (fun (na,bk,t,_) l -> add_impl ?loc:c.CAst.loc na bk l) args.(nb) (aux bds.(nb))
| _ -> []
- in aux 1 l
+ in aux l
diff --git a/interp/implicit_quantifiers.mli b/interp/implicit_quantifiers.mli
index 437fef1753..4f9c47ec36 100644
--- a/interp/implicit_quantifiers.mli
+++ b/interp/implicit_quantifiers.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
@@ -11,22 +11,14 @@
open Names
open Glob_term
open Constrexpr
-open Libnames
val declare_generalizable : local:bool -> lident list option -> unit
-val ids_of_list : Id.t list -> Id.Set.t
-val destClassApp : constr_expr -> (qualid * constr_expr list * instance_expr option) CAst.t
-val destClassAppExpl : constr_expr -> (qualid * (constr_expr * explicitation CAst.t option) list * instance_expr option) CAst.t
-
(** Fragile, should be used only for construction a set of identifiers to avoid *)
val free_vars_of_constr_expr : constr_expr -> ?bound:Id.Set.t ->
Id.t list -> Id.t list
-val free_vars_of_binders :
- ?bound:Id.Set.t -> Id.t list -> local_binder_expr list -> Id.Set.t * Id.t list
-
(** Returns the generalizable free ids in left-to-right
order with the location of their first occurrence *)
@@ -37,15 +29,4 @@ val make_fresh : Id.Set.t -> Environ.env -> Id.t -> Id.t
val implicits_of_glob_constr : ?with_products:bool -> Glob_term.glob_constr -> Impargs.manual_implicits
-val combine_params_freevar :
- Id.Set.t -> GlobRef.t option * Constr.rel_declaration ->
- Constrexpr.constr_expr * Id.Set.t
-
-val implicit_application : Id.Set.t -> ?allow_partial:bool ->
- (Id.Set.t -> GlobRef.t option * Constr.rel_declaration ->
- Constrexpr.constr_expr * Id.Set.t) ->
- constr_expr -> constr_expr * Id.Set.t
-
-(* Should be likely located elsewhere *)
-exception MismatchedContextInstance of Environ.env * Typeclasses_errors.contexts * constr_expr list * Constr.rel_context (* found, expected *)
-val mismatched_ctx_inst_err : Environ.env -> Typeclasses_errors.contexts -> constr_expr list -> Constr.rel_context -> 'a
+val implicit_application : Id.Set.t -> constr_expr -> constr_expr * Id.Set.t
diff --git a/interp/modintern.ml b/interp/modintern.ml
index 2f516f4f3c..955288244e 100644
--- a/interp/modintern.ml
+++ b/interp/modintern.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/modintern.mli b/interp/modintern.mli
index 529c438c1a..75ab38c64a 100644
--- a/interp/modintern.mli
+++ b/interp/modintern.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/notation.ml b/interp/notation.ml
index cc06d5abfc..d58125e29b 100644
--- a/interp/notation.ml
+++ b/interp/notation.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/notation.mli b/interp/notation.mli
index b32561d908..bd9b50977b 100644
--- a/interp/notation.mli
+++ b/interp/notation.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/notation_ops.ml b/interp/notation_ops.ml
index 08619d912e..fdf12faa04 100644
--- a/interp/notation_ops.ml
+++ b/interp/notation_ops.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/notation_ops.mli b/interp/notation_ops.mli
index 58fa221b16..7919d0061f 100644
--- a/interp/notation_ops.mli
+++ b/interp/notation_ops.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/notation_term.ml b/interp/notation_term.ml
index 5024f5c26f..908455bd05 100644
--- a/interp/notation_term.ml
+++ b/interp/notation_term.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/reserve.ml b/interp/reserve.ml
index edbdf1dbba..e81439c3d5 100644
--- a/interp/reserve.ml
+++ b/interp/reserve.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/reserve.mli b/interp/reserve.mli
index a10858e71f..e180fc8071 100644
--- a/interp/reserve.mli
+++ b/interp/reserve.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/smartlocate.ml b/interp/smartlocate.ml
index 91491bdf8d..74fe5d1c80 100644
--- a/interp/smartlocate.ml
+++ b/interp/smartlocate.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/smartlocate.mli b/interp/smartlocate.mli
index e41ef78913..d2770a2e73 100644
--- a/interp/smartlocate.mli
+++ b/interp/smartlocate.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/stdarg.ml b/interp/stdarg.ml
index bf3a8fe215..555eb34aed 100644
--- a/interp/stdarg.ml
+++ b/interp/stdarg.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/stdarg.mli b/interp/stdarg.mli
index c974a4403c..dffbca0054 100644
--- a/interp/stdarg.mli
+++ b/interp/stdarg.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/syntax_def.ml b/interp/syntax_def.ml
index 8df04187f1..302bb6ece2 100644
--- a/interp/syntax_def.ml
+++ b/interp/syntax_def.ml
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
diff --git a/interp/syntax_def.mli b/interp/syntax_def.mli
index e6e3b9cffa..0065b45b14 100644
--- a/interp/syntax_def.mli
+++ b/interp/syntax_def.mli
@@ -1,6 +1,6 @@
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
-(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
+(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)