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2890
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(* Author: Christian Urban
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data about nominal datatypes
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*)
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signature NOMINAL_DT_DATA =
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sig
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type info =
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{inject : thm list,
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distinct : thm list,
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strong_inducts : thm list,
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strong_exhaust : thm list}
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val get_all_info: Proof.context -> (string * info) list
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val get_info: Proof.context -> string -> info option
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val the_info: Proof.context -> string -> info
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val register_info: (string * info) -> Context.generic -> Context.generic
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val mk_infos: string list -> thm list -> thm list -> thm list -> thm list -> (string * info) list
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end
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structure Nominal_Dt_Data: NOMINAL_DT_DATA =
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struct
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(* information generated by nominal_datatype *)
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type info =
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{inject : thm list,
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distinct : thm list,
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strong_inducts : thm list,
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strong_exhaust : thm list}
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structure NominalData = Generic_Data
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(type T = info Symtab.table
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val empty = Symtab.empty
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val extend = I
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val merge = Symtab.merge (K true))
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val get_all_info = Symtab.dest o NominalData.get o Context.Proof
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val get_info = Symtab.lookup o NominalData.get o Context.Proof
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val register_info = NominalData.map o Symtab.update
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fun the_info thy name =
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(case get_info thy name of
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SOME info => info
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| NONE => error ("Unknown nominal datatype " ^ quote name))
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fun mk_infos ty_names inject distinct strong_inducts strong_exhaust =
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let
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fun aux ty_name =
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(ty_name, {inject = inject,
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distinct = distinct,
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strong_inducts = strong_inducts,
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strong_exhaust = strong_exhaust
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})
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in
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map aux ty_names
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end
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end |