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(* Ideally coq/coq#8811 would get merged and then this function could be much simpler. *)
let edeclare ident (_, poly, _ as k) ~opaque sigma udecl body tyopt imps hook =
let sigma = Evd.minimize_universes sigma in
let body = EConstr.to_constr sigma body in
let tyopt = Option.map (EConstr.to_constr sigma) tyopt in
let uvars_fold uvars c =
Univ.LSet.union uvars (Vars.universes_of_constr c) in
let uvars = List.fold_left uvars_fold Univ.LSet.empty
(Option.List.cons tyopt [body]) in
let sigma = Evd.restrict_universe_context sigma uvars in
let univs = Evd.check_univ_decl ~poly sigma udecl in
let ubinders = Evd.universe_binders sigma in
let ce = Declare.definition_entry ?types:tyopt ~univs body in
DeclareDef.declare_definition ident k ce ubinders imps ~hook
let packed_declare_definition ~poly ident value_with_constraints =
let body, ctx = value_with_constraints in
let sigma = Evd.from_ctx ctx in
let k = (Decl_kinds.Global, poly, Decl_kinds.Definition) in
let udecl = UState.default_univ_decl in
let nohook = Lemmas.mk_hook (fun _ x -> ()) in
ignore (edeclare ident k ~opaque:false sigma udecl body None [] nohook)
(* But this definition cannot be undone by Reset ident *)
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