diff options
Diffstat (limited to 'dev/top_printers.ml')
| -rw-r--r-- | dev/top_printers.ml | 206 |
1 files changed, 103 insertions, 103 deletions
diff --git a/dev/top_printers.ml b/dev/top_printers.ml index a3d5cf5c..ba0c5440 100644 --- a/dev/top_printers.ml +++ b/dev/top_printers.ml @@ -1,24 +1,25 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Printers for the ocaml toplevel. *) +open Sorts open Util open Pp open Names open Libnames open Globnames -open Nameops open Univ open Environ open Printer -open Term -open Evd +open Constr open Goptions open Genarg open Clenv @@ -26,85 +27,82 @@ open Clenv let _ = Detyping.print_evar_arguments := true let _ = Detyping.print_universes := true let _ = set_bool_option_value ["Printing";"Matching"] false -let _ = Detyping.set_detype_anonymous (fun _ _ -> raise Not_found) +let _ = Detyping.set_detype_anonymous (fun ?loc _ -> raise Not_found) (* std_ppcmds *) -let pp x = Pp.pp_with !Pp_control.std_ft x +let pp x = Pp.pp_with !Topfmt.std_ft x (** Future printer *) let ppfuture kx = pp (Future.print (fun _ -> str "_") kx) (* name printers *) -let ppid id = pp (pr_id id) -let pplab l = pp (pr_lab l) +let ppid id = pp (Id.print id) +let pplab l = pp (Label.print l) let ppmbid mbid = pp (str (MBId.debug_to_string mbid)) -let ppdir dir = pp (pr_dirpath dir) +let ppdir dir = pp (DirPath.print dir) let ppmp mp = pp(str (ModPath.debug_to_string mp)) -let ppcon con = pp(debug_pr_con con) -let ppproj con = pp(debug_pr_con (Projection.constant con)) +let ppcon con = pp(Constant.debug_print con) +let ppproj con = pp(Constant.debug_print (Projection.constant con)) let ppkn kn = pp(str (KerName.to_string kn)) -let ppmind kn = pp(debug_pr_mind kn) -let ppind (kn,i) = pp(debug_pr_mind kn ++ str"," ++int i) +let ppmind kn = pp(MutInd.debug_print kn) +let ppind (kn,i) = pp(MutInd.debug_print kn ++ str"," ++int i) let ppsp sp = pp(pr_path sp) let ppqualid qid = pp(pr_qualid qid) let ppclindex cl = pp(Classops.pr_cl_index cl) let ppscheme k = pp (Ind_tables.pr_scheme_kind k) -let pprecarg = function +let prrecarg = function | Declarations.Norec -> str "Norec" | Declarations.Mrec (mind,i) -> str "Mrec[" ++ MutInd.print mind ++ pr_comma () ++ int i ++ str "]" | Declarations.Imbr (mind,i) -> str "Imbr[" ++ MutInd.print mind ++ pr_comma () ++ int i ++ str "]" -let ppwf_paths x = pp (Rtree.pp_tree pprecarg x) - -let pprecarg = function - | Declarations.Norec -> str "Norec" - | Declarations.Mrec (mind,i) -> - str "Mrec[" ++ MutInd.print mind ++ pr_comma () ++ int i ++ str "]" - | Declarations.Imbr (mind,i) -> - str "Imbr[" ++ MutInd.print mind ++ pr_comma () ++ int i ++ str "]" -let ppwf_paths x = pp (Rtree.pp_tree pprecarg x) +let ppwf_paths x = pp (Rtree.pp_tree prrecarg x) (* term printers *) +let envpp pp = let sigma,env = Pfedit.get_current_context () in pp env sigma let rawdebug = ref false -let ppevar evk = pp (str (Evd.string_of_existential evk)) -let ppconstr x = pp (Termops.print_constr x) +let ppevar evk = pp (Evar.print evk) +let ppconstr x = pp (Termops.print_constr (EConstr.of_constr x)) +let ppeconstr x = pp (Termops.print_constr x) let ppconstr_expr x = pp (Ppconstr.pr_constr_expr x) -let ppconstrdb x = pp(Flags.with_option rawdebug Termops.print_constr x) -let ppterm = ppconstr let ppsconstr x = ppconstr (Mod_subst.force_constr x) let ppconstr_univ x = Constrextern.with_universes ppconstr x -let ppglob_constr = (fun x -> pp(pr_lglob_constr x)) -let pppattern = (fun x -> pp(pr_constr_pattern x)) -let pptype = (fun x -> try pp(pr_ltype x) with e -> pp (str (Printexc.to_string e))) +let ppglob_constr = (fun x -> pp(pr_lglob_constr_env (Global.env()) x)) +let pppattern = (fun x -> pp(envpp pr_constr_pattern_env x)) +let pptype = (fun x -> try pp(envpp pr_ltype_env x) with e -> pp (str (Printexc.to_string e))) let ppfconstr c = ppconstr (CClosure.term_of_fconstr c) let ppbigint n = pp (str (Bigint.to_string n));; let prset pr l = str "[" ++ hov 0 (prlist_with_sep spc pr l) ++ str "]" let ppintset l = pp (prset int (Int.Set.elements l)) -let ppidset l = pp (prset pr_id (Id.Set.elements l)) +let ppidset l = pp (prset Id.print (Id.Set.elements l)) let prset' pr l = str "[" ++ hov 0 (prlist_with_sep pr_comma pr l) ++ str "]" let pridmap pr l = - let pr (id,b) = pr_id id ++ str "=>" ++ pr id b in + let pr (id,b) = Id.print id ++ str "=>" ++ pr id b in prset' pr (Id.Map.fold (fun a b l -> (a,b)::l) l []) - let ppidmap pr l = pp (pridmap pr l) +let pridmapgen l = + let dom = Id.Set.elements (Id.Map.domain l) in + if dom = [] then str "[]" else + str "[domain= " ++ hov 0 (prlist_with_sep spc Id.print dom) ++ str "]" +let ppidmapgen l = pp (pridmapgen l) + let ppevarsubst = ppidmap (fun id0 -> prset (fun (c,copt,id) -> hov 0 - (Termops.print_constr c ++ + (Termops.print_constr (EConstr.of_constr c) ++ (match copt with None -> mt () | Some c -> spc () ++ str "<expanded: " ++ - Termops.print_constr c ++ str">") ++ + Termops.print_constr (EConstr.of_constr c) ++ str">") ++ (if id = id0 then mt () - else spc () ++ str "<canonical: " ++ pr_id id ++ str ">")))) + else spc () ++ str "<canonical: " ++ Id.print id ++ str ">")))) -let prididmap = pridmap (fun _ -> pr_id) -let ppididmap = ppidmap (fun _ -> pr_id) +let prididmap = pridmap (fun _ -> Id.print) +let ppididmap = ppidmap (fun _ -> Id.print) let prconstrunderbindersidmap = pridmap (fun _ (l,c) -> hov 1 (str"[" ++ prlist_with_sep spc Id.print l ++ str"]") @@ -113,10 +111,9 @@ let prconstrunderbindersidmap = pridmap (fun _ (l,c) -> let ppconstrunderbindersidmap l = pp (prconstrunderbindersidmap l) let ppunbound_ltac_var_map l = ppidmap (fun _ arg -> - str"<genarg:" ++ pr_argument_type(genarg_tag arg) ++ str">") - -open Glob_term + str"<genarg:" ++ pr_argument_type(genarg_tag arg) ++ str">") l +open Ltac_pretype let rec pr_closure {idents=idents;typed=typed;untyped=untyped} = hov 1 (str"{idents=" ++ prididmap idents ++ str";" ++ spc() ++ str"typed=" ++ prconstrunderbindersidmap typed ++ str";" ++ spc() ++ @@ -124,7 +121,7 @@ let rec pr_closure {idents=idents;typed=typed;untyped=untyped} = and pr_closed_glob_constr_idmap x = pridmap (fun _ -> pr_closed_glob_constr) x and pr_closed_glob_constr {closure=closure;term=term} = - pr_closure closure ++ pr_lglob_constr term + pr_closure closure ++ (pr_lglob_constr_env Global.(env ())) term let ppclosure x = pp (pr_closure x) let ppclosedglobconstr x = pp (pr_closed_glob_constr x) @@ -133,40 +130,40 @@ let ppclosedglobconstridmap x = pp (pr_closed_glob_constr_idmap x) let pP s = pp (hov 0 s) let safe_pr_global = function - | ConstRef kn -> pp (str "CONSTREF(" ++ debug_pr_con kn ++ str ")") - | IndRef (kn,i) -> pp (str "INDREF(" ++ debug_pr_mind kn ++ str "," ++ + | ConstRef kn -> pp (str "CONSTREF(" ++ Constant.debug_print kn ++ str ")") + | IndRef (kn,i) -> pp (str "INDREF(" ++ MutInd.debug_print kn ++ str "," ++ int i ++ str ")") - | ConstructRef ((kn,i),j) -> pp (str "INDREF(" ++ debug_pr_mind kn ++ str "," ++ + | ConstructRef ((kn,i),j) -> pp (str "INDREF(" ++ MutInd.debug_print kn ++ str "," ++ int i ++ str "," ++ int j ++ str ")") - | VarRef id -> pp (str "VARREF(" ++ pr_id id ++ str ")") + | VarRef id -> pp (str "VARREF(" ++ Id.print id ++ str ")") let ppglobal x = try pp(pr_global x) with _ -> safe_pr_global x let ppconst (sp,j) = - pp (str"#" ++ pr_kn sp ++ str"=" ++ pr_lconstr j.uj_val) + pp (str"#" ++ KerName.print sp ++ str"=" ++ envpp pr_lconstr_env j.uj_val) let ppvar ((id,a)) = - pp (str"#" ++ pr_id id ++ str":" ++ pr_lconstr a) + pp (str"#" ++ Id.print id ++ str":" ++ envpp pr_lconstr_env a) let genppj f j = let (c,t) = f j in (c ++ str " : " ++ t) -let ppj j = pp (genppj pr_ljudge j) +let ppj j = pp (genppj (envpp pr_ljudge_env) j) -let prsubst s = pp (Mod_subst.debug_pr_subst s) -let prdelta s = pp (Mod_subst.debug_pr_delta s) +let ppsubst s = pp (Mod_subst.debug_pr_subst s) +let ppdelta s = pp (Mod_subst.debug_pr_delta s) let pp_idpred s = pp (pr_idpred s) let pp_cpred s = pp (pr_cpred s) let pp_transparent_state s = pp (pr_transparent_state s) -let pp_stack_t n = pp (Reductionops.Stack.pr Termops.print_constr n) +let pp_stack_t n = pp (Reductionops.Stack.pr (EConstr.of_constr %> Termops.print_constr) n) let pp_cst_stack_t n = pp (Reductionops.Cst_stack.pr n) let pp_state_t n = pp (Reductionops.pr_state n) (* proof printers *) let pr_evar ev = Pp.int (Evar.repr ev) -let ppmetas metas = pp(pr_metaset metas) -let ppevm evd = pp(pr_evar_map ~with_univs:!Flags.univ_print (Some 2) evd) -let ppevmall evd = pp(pr_evar_map ~with_univs:!Flags.univ_print None evd) +let ppmetas metas = pp(Termops.pr_metaset metas) +let ppevm evd = pp(Termops.pr_evar_map ~with_univs:!Flags.univ_print (Some 2) evd) +let ppevmall evd = pp(Termops.pr_evar_map ~with_univs:!Flags.univ_print None evd) let pr_existentialset evars = prlist_with_sep spc pr_evar (Evar.Set.elements evars) let ppexistentialset evars = @@ -177,14 +174,14 @@ let ppexistentialfilter filter = match Evd.Filter.repr filter with let ppclenv clenv = pp(pr_clenv clenv) let ppgoalgoal gl = pp(Goal.pr_goal gl) let ppgoal g = pp(Printer.pr_goal g) -let ppgoalsigma g = pp(Printer.pr_goal g ++ pr_evar_map None (Refiner.project g)) -let pphintdb db = pp(Hints.pr_hint_db db) +let ppgoalsigma g = pp(Printer.pr_goal g ++ Termops.pr_evar_map None (Refiner.project g)) +let pphintdb db = pp(envpp Hints.pr_hint_db_env db) let ppproofview p = let gls,sigma = Proofview.proofview p in - pp(pr_enum Goal.pr_goal gls ++ fnl () ++ pr_evar_map (Some 1) sigma) + pp(pr_enum Goal.pr_goal gls ++ fnl () ++ Termops.pr_evar_map (Some 1) sigma) let ppopenconstr (x : Evd.open_constr) = - let (evd,c) = x in pp (pr_evar_map (Some 2) evd ++ pr_constr c) + let (evd,c) = x in pp (Termops.pr_evar_map (Some 2) evd ++ envpp pr_constr_env c) (* spiwack: deactivated until a replacement is found let pppftreestate p = pp(print_pftreestate p) *) @@ -200,11 +197,11 @@ let pppftreestate p = pp(print_pftreestate p) (* let ppsigmagoal g = pp(pr_goal (sig_it g)) *) (* let prgls gls = pp(pr_gls gls) *) (* let prglls glls = pp(pr_glls glls) *) -(* let pproof p = pp(print_proof Evd.empty empty_named_context p) *) -let ppuni u = pp(pr_uni u) +let pproof p = pp(Proof.pr_proof p) + +let ppuni u = pp(Universe.pr u) let ppuni_level u = pp (Level.pr u) -let ppuniverse u = pp (str"[" ++ Universe.pr u ++ str"]") let prlev = Universes.pr_with_global_universes let ppuniverse_set l = pp (LSet.pr prlev l) @@ -214,12 +211,14 @@ let ppuniverse_context_set l = pp (pr_universe_context_set prlev l) let ppuniverse_subst l = pp (Univ.pr_universe_subst l) let ppuniverse_opt_subst l = pp (Universes.pr_universe_opt_subst l) let ppuniverse_level_subst l = pp (Univ.pr_universe_level_subst l) -let ppevar_universe_context l = pp (Evd.pr_evar_universe_context l) +let ppevar_universe_context l = pp (Termops.pr_evar_universe_context l) let ppconstraints c = pp (pr_constraints Level.pr c) let ppuniverseconstraints c = pp (Universes.Constraints.pr c) let ppuniverse_context_future c = let ctx = Future.force c in ppuniverse_context ctx +let ppcumulativity_info c = pp (Univ.pr_cumulativity_info Univ.Level.pr c) +let ppabstract_cumulativity_info c = pp (Univ.pr_abstract_cumulativity_info Univ.Level.pr c) let ppuniverses u = pp (UGraph.pr_universes Level.pr u) let ppnamedcontextval e = pp (pr_named_context (Global.env ()) Evd.empty (named_context_of_val e)) @@ -231,9 +230,9 @@ let ppenv e = pp let ppenvwithcst e = pp (str "[" ++ pr_named_context_of e Evd.empty ++ str "]" ++ spc() ++ str "[" ++ pr_rel_context e Evd.empty (rel_context e) ++ str "]" ++ spc() ++ - str "{" ++ Cmap_env.fold (fun a _ s -> pr_con a ++ spc () ++ s) (Obj.magic e).Pre_env.env_globals.Pre_env.env_constants (mt ()) ++ str "}") + str "{" ++ Cmap_env.fold (fun a _ s -> Constant.print a ++ spc () ++ s) (Obj.magic e).Pre_env.env_globals.Pre_env.env_constants (mt ()) ++ str "}") -let pptac = (fun x -> pp(Pptactic.pr_glob_tactic (Global.env()) x)) +let pptac = (fun x -> pp(Ltac_plugin.Pptactic.pr_glob_tactic (Global.env()) x)) let ppobj obj = Format.print_string (Libobject.object_tag obj) @@ -247,7 +246,7 @@ let cast_kind_display k = | NATIVEcast -> "NATIVEcast" let constr_display csr = - let rec term_display c = match kind_of_term c with + let rec term_display c = match kind c with | Rel n -> "Rel("^(string_of_int n)^")" | Meta n -> "Meta("^(string_of_int n)^")" | Var id -> "Var("^(Id.to_string id)^")" @@ -262,14 +261,14 @@ let constr_display csr = "LetIn("^(name_display na)^","^(term_display b)^"," ^(term_display t)^","^(term_display c)^")" | App (c,l) -> "App("^(term_display c)^","^(array_display l)^")\n" - | Evar (e,l) -> "Evar("^(string_of_existential e)^","^(array_display l)^")" - | Const (c,u) -> "Const("^(string_of_con c)^","^(universes_display u)^")" + | Evar (e,l) -> "Evar("^(Pp.string_of_ppcmds (Evar.print e))^","^(array_display l)^")" + | Const (c,u) -> "Const("^(Constant.to_string c)^","^(universes_display u)^")" | Ind ((sp,i),u) -> - "MutInd("^(string_of_mind sp)^","^(string_of_int i)^","^(universes_display u)^")" + "MutInd("^(MutInd.to_string sp)^","^(string_of_int i)^","^(universes_display u)^")" | Construct (((sp,i),j),u) -> - "MutConstruct(("^(string_of_mind sp)^","^(string_of_int i)^")," + "MutConstruct(("^(MutInd.to_string sp)^","^(string_of_int i)^")," ^","^(universes_display u)^(string_of_int j)^")" - | Proj (p, c) -> "Proj("^(string_of_con (Projection.constant p))^","^term_display c ^")" + | Proj (p, c) -> "Proj("^(Constant.to_string (Projection.constant p))^","^term_display c ^")" | Case (ci,p,c,bl) -> "MutCase(<abs>,"^(term_display p)^","^(term_display c)^"," ^(array_display bl)^")" @@ -316,10 +315,12 @@ let constr_display csr = in pp (str (term_display csr) ++fnl ()) +let econstr_display c = constr_display EConstr.Unsafe.(to_constr c) ;; + open Format;; let print_pure_constr csr = - let rec term_display c = match kind_of_term c with + let rec term_display c = match Constr.kind c with | Rel n -> print_string "#"; print_int n | Meta n -> print_string "Meta("; print_int n; print_string ")" | Var id -> print_string (Id.to_string id) @@ -437,7 +438,7 @@ let print_pure_constr csr = | ("Coq"::_::l) -> l | l -> l in List.iter (fun x -> print_string x; print_string ".") ls;*) - print_string (debug_string_of_mind sp) + print_string (MutInd.debug_to_string sp) and sp_con_display sp = (* let dir,l = decode_kn sp in let ls = @@ -446,7 +447,7 @@ let print_pure_constr csr = | ("Coq"::_::l) -> l | l -> l in List.iter (fun x -> print_string x; print_string ".") ls;*) - print_string (debug_string_of_con sp) + print_string (Constant.debug_to_string sp) in try @@ -455,7 +456,7 @@ let print_pure_constr csr = print_string (Printexc.to_string e);print_flush (); raise e -let ppfconstr c = ppconstr (CClosure.term_of_fconstr c) +let print_pure_econstr c = print_pure_constr EConstr.Unsafe.(to_constr c) ;; let pploc x = let (l,r) = Loc.unloc x in print_string"(";print_int l;print_string",";print_int r;print_string")" @@ -490,7 +491,7 @@ let in_current_context f c = let (evmap,sign) = Pfedit.get_current_context () in f (fst (Constrintern.interp_constr sign evmap c))(*FIXME*) -(* We expand the result of preprocessing to be independent of camlp4 +(* We expand the result of preprocessing to be independent of camlp5 VERNAC COMMAND EXTEND PrintPureConstr | [ "PrintPureConstr" constr(c) ] -> [ in_current_context print_pure_constr c ] @@ -500,9 +501,8 @@ VERNAC COMMAND EXTEND PrintConstr END *) -open Pcoq open Genarg -open Constrarg +open Stdarg open Egramml let _ = @@ -511,7 +511,7 @@ let _ = (function [c] when genarg_tag c = unquote (topwit wit_constr) && true -> let c = out_gen (rawwit wit_constr) c in - (fun () -> in_current_context constr_display c) + (fun ~atts ~st -> in_current_context econstr_display c; st) | _ -> failwith "Vernac extension: cannot occur") with e -> pp (CErrors.print e) @@ -519,7 +519,7 @@ let _ = extend_vernac_command_grammar ("PrintConstr", 0) None [GramTerminal "PrintConstr"; GramNonTerminal - (Loc.ghost,rawwit wit_constr,Extend.Aentry Pcoq.Constr.constr)] + (Loc.tag (Some (rawwit wit_constr),Extend.Aentry Pcoq.Constr.constr))] let _ = try @@ -527,7 +527,7 @@ let _ = (function [c] when genarg_tag c = unquote (topwit wit_constr) && true -> let c = out_gen (rawwit wit_constr) c in - (fun () -> in_current_context print_pure_constr c) + (fun ~atts ~st -> in_current_context print_pure_econstr c; st) | _ -> failwith "Vernac extension: cannot occur") with e -> pp (CErrors.print e) @@ -535,47 +535,47 @@ let _ = extend_vernac_command_grammar ("PrintPureConstr", 0) None [GramTerminal "PrintPureConstr"; GramNonTerminal - (Loc.ghost,rawwit wit_constr,Extend.Aentry Pcoq.Constr.constr)] + (Loc.tag (Some (rawwit wit_constr),Extend.Aentry Pcoq.Constr.constr))] (* Setting printer of unbound global reference *) open Names open Libnames -let encode_path loc prefix mpdir suffix id = +let encode_path ?loc prefix mpdir suffix id = let dir = match mpdir with | None -> [] | Some (mp,dir) -> - (DirPath.repr (dirpath_of_string (string_of_mp mp))@ + (DirPath.repr (dirpath_of_string (ModPath.to_string mp))@ DirPath.repr dir) in - Qualid (loc, make_qualid + CAst.make ?loc @@ Qualid (make_qualid (DirPath.make (List.rev (Id.of_string prefix::dir@suffix))) id) -let raw_string_of_ref loc _ = function +let raw_string_of_ref ?loc _ = function | ConstRef cst -> - let (mp,dir,id) = repr_con cst in - encode_path loc "CST" (Some (mp,dir)) [] (Label.to_id id) + let (mp,dir,id) = Constant.repr3 cst in + encode_path ?loc "CST" (Some (mp,dir)) [] (Label.to_id id) | IndRef (kn,i) -> - let (mp,dir,id) = repr_mind kn in - encode_path loc "IND" (Some (mp,dir)) [Label.to_id id] + let (mp,dir,id) = MutInd.repr3 kn in + encode_path ?loc "IND" (Some (mp,dir)) [Label.to_id id] (Id.of_string ("_"^string_of_int i)) | ConstructRef ((kn,i),j) -> - let (mp,dir,id) = repr_mind kn in - encode_path loc "CSTR" (Some (mp,dir)) + let (mp,dir,id) = MutInd.repr3 kn in + encode_path ?loc "CSTR" (Some (mp,dir)) [Label.to_id id;Id.of_string ("_"^string_of_int i)] (Id.of_string ("_"^string_of_int j)) | VarRef id -> - encode_path loc "SECVAR" None [] id + encode_path ?loc "SECVAR" None [] id -let short_string_of_ref loc _ = function - | VarRef id -> Ident (loc,id) - | ConstRef cst -> Ident (loc,Label.to_id (pi3 (repr_con cst))) - | IndRef (kn,0) -> Ident (loc,Label.to_id (pi3 (repr_mind kn))) +let short_string_of_ref ?loc _ = function + | VarRef id -> CAst.make ?loc @@ Ident id + | ConstRef cst -> CAst.make ?loc @@ Ident (Label.to_id (pi3 (Constant.repr3 cst))) + | IndRef (kn,0) -> CAst.make ?loc @@ Ident (Label.to_id (pi3 (MutInd.repr3 kn))) | IndRef (kn,i) -> - encode_path loc "IND" None [Label.to_id (pi3 (repr_mind kn))] + encode_path ?loc "IND" None [Label.to_id (pi3 (MutInd.repr3 kn))] (Id.of_string ("_"^string_of_int i)) | ConstructRef ((kn,i),j) -> - encode_path loc "CSTR" None - [Label.to_id (pi3 (repr_mind kn));Id.of_string ("_"^string_of_int i)] + encode_path ?loc "CSTR" None + [Label.to_id (pi3 (MutInd.repr3 kn));Id.of_string ("_"^string_of_int i)] (Id.of_string ("_"^string_of_int j)) (* Anticipate that printers can be used from ocamldebug and that |