Source file prover_apply.ml

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(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2022 Nomadic Labs, <contact@nomadic-labs.com>               *)
(*                                                                           *)
(* Permission is hereby granted, free of charge, to any person obtaining a   *)
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(* to deal in the Software without restriction, including without limitation *)
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(*                                                                           *)
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(*                                                                           *)
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(*****************************************************************************)

module Prover_apply = Protocol.Tx_rollup_l2_apply.Make (Context.Prover_context)

type proof = Protocol.Tx_rollup_l2_proof.t

let proof_size proof =
  (* The 4 additional bytes are added by data-encoding when we
     “re-encode” the proof as raw bytes. We need to take these 4 bytes
     into account in the unlikely scenario where they are enough to
     cross the limit. *)
  4 + Data_encoding.Binary.length Protocol.Tx_rollup_l2_proof.encoding proof

let apply_message ctxt parameters message =
  let open Lwt_result_syntax in
  let f tree =
    Context.Prover_context.Syntax.catch
      (Prover_apply.apply_message tree parameters message)
      (fun (tree, result) ->
        Lwt.return Context.{tree; result = Inbox.Interpreted result})
      (fun err ->
        Lwt.return
          Context.
            {tree; result = Inbox.Discarded [Environment.wrap_tzerror err]})
  in
  let* proof, result = Context.produce_proof ctxt f in
  return (proof, result)