diff options
Diffstat (limited to 'vernac/vernacentries.ml')
| -rw-r--r-- | vernac/vernacentries.ml | 72 |
1 files changed, 51 insertions, 21 deletions
diff --git a/vernac/vernacentries.ml b/vernac/vernacentries.ml index 5fda1a0da..27f2a740e 100644 --- a/vernac/vernacentries.ml +++ b/vernac/vernacentries.ml @@ -2319,32 +2319,62 @@ let with_fail st b f = | _ -> assert false end +let attributes_of_flags f atts = + let assert_empty k v = + if v <> VernacFlagEmpty + then user_err Pp.(str "Attribute " ++ str k ++ str " does not accept arguments") + in + List.fold_left + (fun (polymorphism, atts) (k, v) -> + match k with + | "program" when not atts.program -> + assert_empty k v; + (polymorphism, { atts with program = true }) + | "program" -> + user_err Pp.(str "Program mode specified twice") + | "polymorphic" when polymorphism = None -> + assert_empty k v; + (Some true, atts) + | "monomorphic" when polymorphism = None -> + assert_empty k v; + (Some false, atts) + | ("polymorphic" | "monomorphic") -> + user_err Pp.(str "Polymorphism specified twice") + | "local" when Option.is_empty atts.locality -> + assert_empty k v; + (polymorphism, { atts with locality = Some true }) + | "global" when Option.is_empty atts.locality -> + assert_empty k v; + (polymorphism, { atts with locality = Some false }) + | ("local" | "global") -> + user_err Pp.(str "Locality specified twice") + | "deprecated" when Option.is_empty atts.deprecated -> + begin match v with + | VernacFlagList [ "since", VernacFlagLeaf since ; "note", VernacFlagLeaf note ] + | VernacFlagList [ "note", VernacFlagLeaf note ; "since", VernacFlagLeaf since ] -> + let since = Some since and note = Some note in + (polymorphism, { atts with deprecated = Some (mk_deprecation ~since ~note ()) }) + | VernacFlagList [ "since", VernacFlagLeaf since ] -> + let since = Some since in + (polymorphism, { atts with deprecated = Some (mk_deprecation ~since ()) }) + | VernacFlagList [ "note", VernacFlagLeaf note ] -> + let note = Some note in + (polymorphism, { atts with deprecated = Some (mk_deprecation ~note ()) }) + | _ -> CErrors.user_err (Pp.str "Ill formed “deprecated” attribute") + end + | "deprecated" -> + user_err Pp.(str "Deprecation specified twice") + | _ -> user_err Pp.(str "Unknown attribute " ++ str k) + ) + (None, atts) + f + let interp ?(verbosely=true) ?proof ~st {CAst.loc;v=c} = let orig_univ_poly = Flags.is_universe_polymorphism () in let orig_program_mode = Flags.is_program_mode () in - let flags f atts = - List.fold_left - (fun (polymorphism, atts) f -> - match f with - | VernacProgram when not atts.program -> - (polymorphism, { atts with program = true }) - | VernacProgram -> - user_err Pp.(str "Program mode specified twice") - | VernacPolymorphic b when polymorphism = None -> - (Some b, atts) - | VernacPolymorphic _ -> - user_err Pp.(str "Polymorphism specified twice") - | VernacLocal b when Option.is_empty atts.locality -> - (polymorphism, { atts with locality = Some b }) - | VernacLocal _ -> - user_err Pp.(str "Locality specified twice") - ) - (None, atts) - f - in let rec control = function | VernacExpr (f, v) -> - let (polymorphism, atts) = flags f { loc; locality = None; polymorphic = false; program = orig_program_mode; } in + let (polymorphism, atts) = attributes_of_flags f (mk_atts ~program:orig_program_mode ()) in aux ~polymorphism ~atts v | VernacFail v -> with_fail st true (fun () -> control v) | VernacTimeout (n,v) -> |