explicitly export type abbreviations (as usual in SML97);
explicit type constraints for record patterns -- SML does not support record polymorphism;
observe max. line length (80-100);
(* Title: HOL/Mirabelle/Tools/mirabelle_metis.ML
Author: Jasmin Blanchette and Sascha Boehme, TU Munich
*)
structure Mirabelle_Metis : MIRABELLE_ACTION =
struct
fun metis_tag id = "#" ^ string_of_int id ^ " metis: "
fun init _ = I
fun done _ _ = ()
fun run id ({pre, post, timeout, log, ...}: Mirabelle.run_args) =
let
val thms = Mirabelle.theorems_of_sucessful_proof post
val names = map Thm.get_name thms
val add_info = if null names then I else suffix (":\n" ^ commas names)
val facts = Facts.props (ProofContext.facts_of (Proof.context_of pre))
fun metis ctxt = MetisTools.metis_tac ctxt (thms @ facts)
in
(if Mirabelle.can_apply timeout metis pre then "succeeded" else "failed")
|> prefix (metis_tag id)
|> add_info
|> log
end
handle TimeLimit.TimeOut => log (metis_tag id ^ "timeout")
| ERROR msg => log (metis_tag id ^ "error: " ^ msg)
fun invoke _ = Mirabelle.register (init, Mirabelle.catch metis_tag run, done)
end