Source file apply.ml

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(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
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let apply State.{a; b} operation =
  let open Int32 in
  match operation with
  | Proto_operation.IncrA ->
      Some State.{a = add a 1l; b}
  | Proto_operation.IncrB ->
      Some State.{a; b = add b 1l}
  | Proto_operation.Transfer i ->
      let state = State.{a = sub a i; b = add b i} in
      if State.invariant state then Some state else None