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open Protocol.Alpha_context

module type PVM =
  Sc_rollup.PVM.S
    with type context = Tezos_context_memory.Context_binary.t
     and type state = Tezos_context_memory.Context_binary.tree
     and type proof =
      Tezos_context_memory.Context_binary.Proof.tree
      Tezos_context_memory.Context_binary.Proof.t

module type S = sig
  include PVM

  val make_empty_context : unit -> context

  val make_empty_state : unit -> state
end

module Extend (Pvm : PVM) = struct
  include Pvm

  let make_empty_context =
    Tezos_context_memory.Context_binary.make_empty_context ~root:"dummy"

  let make_empty_state = Tezos_context_memory.Context_binary.make_empty_tree
end

module Arith : S = Extend (Sc_rollup.ArithPVM.Make (Context_helpers.In_memory))

module Wasm : S =
  Extend
    (Sc_rollup.Wasm_2_0_0PVM.Make
       (Environment.Wasm_2_0_0.Make)
       (Context_helpers.In_memory))