Source file nametab.ml
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open Names
open Libnames
open Globnames
type object_prefix = {
obj_dir : DirPath.t;
obj_mp : ModPath.t;
}
let eq_op op1 op2 =
DirPath.equal op1.obj_dir op2.obj_dir &&
ModPath.equal op1.obj_mp op2.obj_mp
module GlobDirRef = struct
type t =
| DirOpenModule of ModPath.t
| DirOpenModtype of ModPath.t
| DirOpenSection of DirPath.t
let equal r1 r2 = match r1, r2 with
| DirOpenModule op1, DirOpenModule op2 -> ModPath.equal op1 op2
| DirOpenModtype op1, DirOpenModtype op2 -> ModPath.equal op1 op2
| DirOpenSection op1, DirOpenSection op2 -> DirPath.equal op1 op2
| (DirOpenModule _ | DirOpenModtype _ | DirOpenSection _), _ -> false
end
exception GlobalizationError of qualid
let error_global_not_found ~info qid =
let info = Option.cata (Loc.add_loc info) info qid.CAst.loc in
Exninfo.iraise (GlobalizationError qid, info)
type visibility = Until of int | Exactly of int
let map_visibility f = function
| Until i -> Until (f i)
| Exactly i -> Exactly (f i)
module type UserName = sig
type t
val equal : t -> t -> bool
val to_string : t -> string
val repr : t -> Id.t * module_ident list
end
module type EqualityType =
sig
type t
val equal : t -> t -> bool
end
module type NAMETREE = sig
type elt
type t
type user_name
val empty : t
val push : visibility -> user_name -> elt -> t -> t
val locate : qualid -> t -> elt
val find : user_name -> t -> elt
val remove : user_name -> t -> t
val exists : user_name -> t -> bool
val user_name : qualid -> t -> user_name
val shortest_qualid_gen : ?loc:Loc.t -> (Id.t -> bool) -> user_name -> t -> qualid
val shortest_qualid : ?loc:Loc.t -> Id.Set.t -> user_name -> t -> qualid
val find_prefixes : qualid -> t -> elt list
(** Matches a prefix of [qualid], useful for completion *)
val match_prefixes : qualid -> t -> elt list
end
let masking_absolute = CWarnings.create_warning
~from:[Deprecation.Version.v8_8] ~name:"masking-absolute-name" ()
let coq_id = Id.of_string "Coq"
let stdlib_id = Id.of_string "Stdlib"
let init_id = Id.of_string "Corelib"
let warn_deprecated_dirpath_Coq =
CWarnings.create_with_quickfix ~name:"deprecated-dirpath-Coq"
~category:Deprecation.Version.v9_0
(fun (old_id, new_id) ->
Pp.(old_id ++ spc () ++ str "has been replaced by" ++ spc () ++ new_id ++ str "."))
let fix_coq_id coq_repl l =
(match l with
| _coq_id :: l -> coq_repl :: l
| _ -> l)
let warn_deprecated_dirpath_Coq ?loc (coq_repl, l, id) =
let dp l = DirPath.make (List.rev l) in
let old_id = pr_qualid @@ Libnames.make_qualid (DirPath.make l) id in
let new_id = pr_qualid @@ Libnames.make_qualid (dp @@ fix_coq_id coq_repl (List.rev l)) id in
let quickfix = Option.map (fun loc -> [ Quickfix.make ~loc new_id ]) loc in
warn_deprecated_dirpath_Coq ?loc ?quickfix (old_id, new_id)
module Make (U : UserName) (E : EqualityType) : NAMETREE
with type user_name = U.t and type elt = E.t =
struct
type elt = E.t
let warn_masking_absolute =
CWarnings.create_in masking_absolute
(fun n -> Pp.str ("Trying to mask the absolute name \"" ^ U.to_string n ^ "\"!"))
type user_name = U.t
type path_status =
| Relative of user_name * elt
| Absolute of user_name * elt
type nametree =
{ path : path_status list;
map : nametree ModIdmap.t }
let mktree p m = { path=p; map=m }
let empty_tree = mktree [] ModIdmap.empty
let is_empty_tree tree = tree.path = [] && ModIdmap.is_empty tree.map
type t = nametree Id.Map.t
let empty = Id.Map.empty
let rec push_until uname o level tree = function
| modid :: path ->
let modify _ mc = push_until uname o (level-1) mc path in
let map =
try ModIdmap.modify modid modify tree.map
with Not_found ->
let ptab = modify () empty_tree in
ModIdmap.add modid ptab tree.map
in
let this =
if level <= 0 then
match tree.path with
| Absolute (n,_)::_ ->
warn_masking_absolute n; tree.path
| current -> Relative (uname,o) :: current
else tree.path
in
mktree this map
| [] ->
match tree.path with
| Absolute (uname',o') :: _ ->
if E.equal o' o then begin
assert (U.equal uname uname');
tree
end
else
CErrors.user_err Pp.(str @@ "Cannot mask the absolute name \""
^ U.to_string uname' ^ "\"!")
| current -> mktree (Absolute (uname,o) :: current) tree.map
let rec push_exactly uname o level tree = function
| [] ->
CErrors.anomaly (Pp.str "Prefix longer than path! Impossible!")
| modid :: path ->
if Int.equal level 0 then
let this =
match tree.path with
| Absolute (n,_) :: _ ->
warn_masking_absolute n; tree.path
| current -> Relative (uname,o) :: current
in
mktree this tree.map
else
let modify _ mc = push_exactly uname o (level-1) mc path in
let map =
try ModIdmap.modify modid modify tree.map
with Not_found ->
let ptab = modify () empty_tree in
ModIdmap.add modid ptab tree.map
in
mktree tree.path map
let push visibility uname o tab =
let id,dir = U.repr uname in
let modify _ ptab = match visibility with
| Until i -> push_until uname o (i-1) ptab dir
| Exactly i -> push_exactly uname o (i-1) ptab dir
in
try Id.Map.modify id modify tab
with Not_found ->
let ptab = modify () empty_tree in
Id.Map.add id ptab tab
(** [remove_path uname tree dir] removes all bindings pointing to
[uname] along the path [dir] in [tree] (i.e. all such bindings are
assumed to be on this path) *)
let rec remove_path uname tree = function
| modid :: path ->
let update = function
| None -> None
| Some mc ->
let mc = remove_path uname mc path in
if is_empty_tree mc then None else Some mc
in
let map = ModIdmap.update modid update tree.map in
let this =
let test = function Relative (uname',_) -> not (U.equal uname uname') | _ -> true in
List.filter test tree.path
in
mktree this map
| [] ->
let this =
let test = function Absolute (uname',_) -> not (U.equal uname uname') | _ -> true in
List.filter test tree.path
in
mktree this tree.map
(** Remove all bindings pointing to [uname] in [tab] *)
let remove uname tab =
let id,dir = U.repr uname in
let modify _ ptab = remove_path uname ptab dir in
try Id.Map.modify id modify tab
with Not_found -> tab
let rec search coq_repl tree = function
| [modid] when Id.equal modid coq_id ->
let _warn, p =
match ModIdmap.find_opt coq_repl tree.map with
| None -> None, None
| Some modid -> search coq_repl modid [] in
Some coq_repl, p
| modid :: path ->
begin match ModIdmap.find_opt modid tree.map with
| None -> None, None
| Some modid -> search coq_repl modid path end
| [] -> None, Some tree.path
let search ?loc id tree dir =
let warn, p = search stdlib_id tree dir in
let warn, p =
match p with Some _ -> warn, p | None -> search init_id tree dir in
begin match warn with None -> () | Some coq_repl ->
warn_deprecated_dirpath_Coq ?loc (coq_repl, dir, id) end;
match p with Some p -> p | None -> raise Not_found
let find_node qid tab =
let loc = qid.CAst.loc in
let (dir,id) = repr_qualid qid in
search ?loc id (Id.Map.find id tab) (DirPath.repr dir)
let locate qid tab =
let o = match find_node qid tab with
| (Absolute (uname,o) | Relative (uname,o)) :: _ -> o
| [] -> raise Not_found
in
o
let user_name qid tab =
let uname = match find_node qid tab with
| (Absolute (uname,o) | Relative (uname,o)) :: _ -> uname
| [] -> raise Not_found
in
uname
let find uname tab =
let id,l = U.repr uname in
match search id (Id.Map.find id tab) l with
Absolute (_,o) :: _ -> o
| _ -> raise Not_found
let exists uname tab =
try
let _ = find uname tab in
true
with
Not_found -> false
let shortest_qualid_gen ?loc hidden uname tab =
let id,dir = U.repr uname in
let hidden = hidden id in
let rec find_uname pos dir tree =
let is_empty = match pos with [] -> true | _ -> false in
match tree.path with
| (Absolute (u,_) | Relative (u,_)) :: _
when U.equal u uname && not (is_empty && hidden) -> List.rev pos
| _ ->
match dir with
[] -> raise Not_found
| id::dir -> find_uname (id::pos) dir (ModIdmap.find id tree.map)
in
let ptab = Id.Map.find id tab in
let found_dir = find_uname [] dir ptab in
make_qualid ?loc (DirPath.make found_dir) id
let shortest_qualid ?loc ctx uname tab =
shortest_qualid_gen ?loc (fun id -> Id.Set.mem id ctx) uname tab
let push_node node l =
match node with
| (Absolute (_,o) | Relative (_,o)) :: _
when not (Util.List.mem_f E.equal o l) -> o::l
| _ -> l
let rec flatten_tree tree l =
let f _ tree l = flatten_tree tree l in
ModIdmap.fold f tree.map (push_node tree.path l)
let rec search_prefixes tree = function
| modid :: path -> search_prefixes (ModIdmap.find modid tree.map) path
| [] -> List.rev (flatten_tree tree [])
let find_prefixes qid tab =
try
let (dir,id) = repr_qualid qid in
search_prefixes (Id.Map.find id tab) (DirPath.repr dir)
with Not_found -> []
let match_prefixes =
let cprefix x y = CString.(compare x (sub y 0 (min (length x) (length y)))) in
fun qid tab ->
try
let (dir,id) = repr_qualid qid in
let id_prefix = cprefix Id.(to_string id) in
let matches = Id.Map.filter_range (fun x -> id_prefix Id.(to_string x)) tab in
let matches = Id.Map.mapi (fun _key tab -> search_prefixes tab (DirPath.repr dir)) matches in
CList.flatten @@ Id.Map.(fold (fun _ r l -> r :: l) matches [])
with Not_found -> []
end
module FullPath =
struct
type t = full_path
let equal = eq_full_path
let to_string = string_of_path
let repr sp =
let dir,id = repr_path sp in
id, (DirPath.repr dir)
end
module ExtRefEqual = ExtRefOrdered
module MPEqual = Names.ModPath
module ExtRefTab = Make(FullPath)(ExtRefEqual)
module MPTab = Make(FullPath)(MPEqual)
type ccitab = ExtRefTab.t
let the_ccitab = Summary.ref ~name:"ccitab" (ExtRefTab.empty : ccitab)
module DirPath' =
struct
include DirPath
let repr dir = match DirPath.repr dir with
| [] -> CErrors.anomaly (Pp.str "Empty dirpath.")
| id :: l -> (id, l)
end
module MPDTab = Make(DirPath')(MPEqual)
module DirTab = Make(DirPath')(GlobDirRef)
module UnivTab = Make(FullPath)(Univ.UGlobal)
type univtab = UnivTab.t
let the_univtab = Summary.ref ~name:"univtab" (UnivTab.empty : univtab)
type globrevtab = full_path ExtRefMap.t
let the_globrevtab =
Summary.ref ~name:"globrevtab" (ExtRefMap.empty : globrevtab)
let the_globwarntab = Summary.ref ~name:"globwarntag" ExtRefMap.empty
type mprevtab = DirPath.t MPmap.t
type mptrevtab = full_path MPmap.t
module UnivIdMap = HMap.Make(Univ.UGlobal)
type univrevtab = full_path UnivIdMap.t
let the_univrevtab = Summary.ref ~name:"univrevtab" (UnivIdMap.empty : univrevtab)
(** Module-related nametab *)
module Modules = struct
type t = {
modtypetab : MPTab.t;
modtab : MPDTab.t;
dirtab : DirTab.t;
modrevtab : mprevtab;
modtyperevtab : mptrevtab;
}
let initial = {
modtypetab = MPTab.empty;
modtab = MPDTab.empty;
dirtab = DirTab.empty;
modrevtab = MPmap.empty;
modtyperevtab = MPmap.empty
}
let nametab, summary_tag =
Summary.ref_tag ~stage:Summary.Stage.Synterp ~name:"MODULES-NAMETAB" initial
let freeze () = !nametab
let unfreeze v = nametab := v
end
let push_xref ?user_warns visibility sp xref =
match visibility with
| Until _ ->
the_ccitab := ExtRefTab.push visibility sp xref !the_ccitab;
the_globrevtab := ExtRefMap.add xref sp !the_globrevtab;
user_warns |> Option.iter (fun warn ->
the_globwarntab := ExtRefMap.add xref warn !the_globwarntab)
| Exactly _ ->
begin
assert (Option.is_empty user_warns);
the_ccitab := ExtRefTab.push visibility sp xref !the_ccitab
end
let remove_xref sp xref =
the_ccitab := ExtRefTab.remove sp !the_ccitab;
the_globrevtab := ExtRefMap.remove xref !the_globrevtab;
the_globwarntab := ExtRefMap.remove xref !the_globwarntab
let push_cci ?user_warns visibility sp ref =
push_xref ?user_warns visibility sp (TrueGlobal ref)
let push_abbreviation ?user_warns visibility sp kn =
push_xref ?user_warns visibility sp (Abbrev kn)
let remove_abbreviation sp kn =
remove_xref sp (Abbrev kn)
let push = push_cci
let push_modtype vis sp kn =
let open Modules in
nametab := { !nametab with
modtypetab = MPTab.push vis sp kn !nametab.modtypetab;
modtyperevtab = MPmap.add kn sp !nametab.modtyperevtab;
}
let push_module vis dir mp =
let open Modules in
nametab := { !nametab with
modtab = MPDTab.push vis dir mp !nametab.modtab;
modrevtab = MPmap.add mp dir !nametab.modrevtab;
}
let push_dir vis dir dir_ref =
let open Modules in
nametab := { !nametab with
dirtab = DirTab.push vis dir dir_ref !Modules.nametab.dirtab;
}
let push_universe vis sp univ =
the_univtab := UnivTab.push vis sp univ !the_univtab;
the_univrevtab := UnivIdMap.add univ sp !the_univrevtab
let path_of_global ref =
let open GlobRef in
match ref with
| VarRef id -> make_path DirPath.empty id
| _ -> ExtRefMap.find (TrueGlobal ref) !the_globrevtab
let dirpath_of_global ref =
fst (repr_path (path_of_global ref))
let basename_of_global ref =
snd (repr_path (path_of_global ref))
let path_of_abbreviation kn =
ExtRefMap.find (Abbrev kn) !the_globrevtab
let dirpath_of_module mp =
MPmap.find mp Modules.(!nametab.modrevtab)
let path_of_modtype mp =
MPmap.find mp Modules.(!nametab.modtyperevtab)
let path_of_universe mp =
UnivIdMap.find mp !the_univrevtab
let shortest_qualid_of_global ?loc ctx ref =
let open GlobRef in
match ref with
| VarRef id -> make_qualid ?loc DirPath.empty id
| _ ->
let sp = ExtRefMap.find (TrueGlobal ref) !the_globrevtab in
ExtRefTab.shortest_qualid ?loc ctx sp !the_ccitab
let shortest_qualid_of_abbreviation ?loc ctx kn =
let sp = path_of_abbreviation kn in
ExtRefTab.shortest_qualid ?loc ctx sp !the_ccitab
let shortest_qualid_of_module ?loc mp =
let dir = MPmap.find mp Modules.(!nametab.modrevtab) in
MPDTab.shortest_qualid ?loc Id.Set.empty dir Modules.(!nametab.modtab)
let shortest_qualid_of_modtype ?loc kn =
let sp = MPmap.find kn Modules.(!nametab.modtyperevtab) in
MPTab.shortest_qualid ?loc Id.Set.empty sp Modules.(!nametab.modtypetab)
let shortest_qualid_of_universe ?loc ctx kn =
let sp = UnivIdMap.find kn !the_univrevtab in
UnivTab.shortest_qualid_gen ?loc (fun id -> Id.Map.mem id ctx) sp !the_univtab
let pr_global_env env ref =
try pr_qualid (shortest_qualid_of_global env ref)
with Not_found as exn ->
let exn, info = Exninfo.capture exn in
if !Flags.in_debugger then GlobRef.print ref
else begin
let () = if CDebug.(get_flag misc)
then Feedback.msg_debug (Pp.str "pr_global_env not found")
in
Exninfo.iraise (exn, info)
end
let pr_depr_xref xref =
let sp = ExtRefMap.get xref !the_globrevtab in
pr_qualid (ExtRefTab.shortest_qualid Id.Set.empty sp !the_ccitab)
let pr_depr_ref ref = pr_depr_xref (TrueGlobal ref)
let warn_deprecated_ref =
Deprecation.create_warning_with_qf ~object_name:"Reference" ~warning_name_if_no_since:"deprecated-reference"
~pp_qf:pr_depr_xref pr_depr_ref
let pr_depr_abbrev a = pr_depr_xref (Abbrev a)
let warn_deprecated_abbreviation =
Deprecation.create_warning_with_qf ~object_name:"Notation" ~warning_name_if_no_since:"deprecated-syntactic-definition"
~pp_qf:pr_depr_xref pr_depr_abbrev
let warn_deprecated_xref ?loc depr = function
| TrueGlobal ref -> warn_deprecated_ref ?loc (ref, depr)
| Abbrev a -> warn_deprecated_abbreviation ?loc (a, depr)
let warn_user_warn =
UserWarn.create_warning ~warning_name_if_no_cats:"warn-reference" ()
let is_warned_xref xref : extended_global_reference UserWarn.with_qf option = ExtRefMap.find_opt xref !the_globwarntab
let warn_user_warn_xref ?loc user_warns xref =
user_warns.UserWarn.depr_qf
|> Option.iter (fun depr -> warn_deprecated_xref ?loc depr xref);
user_warns.UserWarn.warn_qf |> List.iter (warn_user_warn ?loc)
let locate_extended_nowarn qid =
let xref = ExtRefTab.locate qid !the_ccitab in
xref
let locate_extended qid =
let xref = locate_extended_nowarn qid in
let warn = is_warned_xref xref in
let () = warn |> Option.iter (fun warn ->
warn_user_warn_xref ?loc:qid.loc warn xref) in
xref
let locate qid = match locate_extended qid with
| TrueGlobal ref -> ref
| Abbrev _ -> raise Not_found
let locate_abbreviation qid = match locate_extended qid with
| TrueGlobal _ -> raise Not_found
| Abbrev kn -> kn
let locate_modtype qid = MPTab.locate qid Modules.(!nametab.modtypetab)
let full_name_modtype qid = MPTab.user_name qid Modules.(!nametab.modtypetab)
let locate_universe qid = UnivTab.locate qid !the_univtab
let locate_dir qid = DirTab.locate qid Modules.(!nametab.dirtab)
let locate_module qid = MPDTab.locate qid Modules.(!nametab.modtab)
let full_name_module qid = MPDTab.user_name qid Modules.(!nametab.modtab)
let locate_section qid =
match locate_dir qid with
| GlobDirRef.DirOpenSection dir -> dir
| _ -> raise Not_found
let locate_all qid =
List.fold_right (fun a l ->
match a with
| TrueGlobal a -> a::l
| _ -> l)
(ExtRefTab.find_prefixes qid !the_ccitab) []
let locate_extended_all qid = ExtRefTab.find_prefixes qid !the_ccitab
let locate_extended_all_dir qid = DirTab.find_prefixes qid Modules.(!nametab.dirtab)
let locate_extended_all_modtype qid = MPTab.find_prefixes qid Modules.(!nametab.modtypetab)
let locate_extended_all_module qid = MPDTab.find_prefixes qid Modules.(!nametab.modtab)
let completion_canditates qualid =
ExtRefTab.match_prefixes qualid !the_ccitab
let locate_constant qid =
let open GlobRef in
match locate_extended qid with
| TrueGlobal (ConstRef kn) -> kn
| _ -> raise Not_found
let global_of_path sp =
match ExtRefTab.find sp !the_ccitab with
| TrueGlobal ref -> ref
| _ -> raise Not_found
let extended_global_of_path sp = ExtRefTab.find sp !the_ccitab
let global qid =
try match locate_extended qid with
| TrueGlobal ref -> ref
| Abbrev _ ->
CErrors.user_err ?loc:qid.CAst.loc
Pp.(str "Unexpected reference to a notation: " ++
pr_qualid qid ++ str ".")
with Not_found as exn ->
let _, info = Exninfo.capture exn in
error_global_not_found ~info qid
let global_inductive qid =
let open GlobRef in
match global qid with
| IndRef ind -> ind
| ref ->
CErrors.user_err ?loc:qid.CAst.loc
Pp.(pr_qualid qid ++ spc () ++ str "is not an inductive type.")
let exists_cci sp = ExtRefTab.exists sp !the_ccitab
let exists_dir dir = DirTab.exists dir Modules.(!nametab.dirtab)
let exists_module dir = MPDTab.exists dir Modules.(!nametab.modtab)
let exists_modtype sp = MPTab.exists sp Modules.(!nametab.modtypetab)
let exists_universe kn = UnivTab.exists kn !the_univtab
open Globnames
let cci_loc_table : Loc.t ExtRefMap.t ref = Summary.ref ~name:"constant-loc-table" ExtRefMap.empty
let set_cci_src_loc kn loc = cci_loc_table := ExtRefMap.add kn loc !cci_loc_table
let cci_src_loc kn = ExtRefMap.find_opt kn !cci_loc_table