(* Title: Doc/more_antiquote.ML
Author: Florian Haftmann, TU Muenchen
More antiquotations (depending on Isabelle/HOL).
*)
structure More_Antiquote : sig end =
struct
(* code theorem antiquotation *)
local
fun pretty_term ctxt t = Syntax.pretty_term (Variable.auto_fixes t ctxt) t;
fun pretty_thm ctxt = pretty_term ctxt o Thm.full_prop_of;
fun no_vars ctxt thm =
let
val ctxt' = Variable.set_body false ctxt;
val ((_, [thm]), _) = Variable.import true [thm] ctxt';
in thm end;
fun pretty_code_thm src ctxt raw_const =
let
val thy = Proof_Context.theory_of ctxt;
val const = Code.check_const thy raw_const;
val (_, eqngr) = Code_Preproc.obtain true ctxt [const] [];
fun holize thm = @{thm meta_eq_to_obj_eq} OF [thm];
val thms = Code_Preproc.cert eqngr const
|> Code.equations_of_cert thy
|> snd
|> these
|> map_filter (fn (_, (some_thm, proper)) => if proper then some_thm else NONE)
|> map (holize o no_vars ctxt o Axclass.overload thy);
in Thy_Output.output ctxt (Thy_Output.maybe_pretty_source pretty_thm ctxt src thms) end;
in
val _ =
Theory.setup (Thy_Output.antiquotation @{binding code_thms} Args.term
(fn {source, context, ...} => pretty_code_thm source context));
end;
end;