lib/scl/sublanguage.ml


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module Make (NT : Nt.S) = struct
  module Exec = Executor.Make (NT)

  type configuration = unit
  type ast = Ast.statement
  type error = Exec.error

  let name = "scl"
  let parse _ = Ok ()

  let parse_sexp sexp =
    match Parser.of_sexp sexp with
    | Ok r -> Ok r
    | Error (Parser.ParseError s) -> Error (Exec.ParseError s)

  let execute ctx ast =
    Exec.execute ctx ast
    |> Result.map (function
         | Executor.Batch { cursor_id; rows; has_more } ->
             Sublanguage_types.Cursor { cursor_id; rows; has_more }
         | Executor.Closed delta -> Sublanguage_types.Transition delta)

  let sexp_of_error = Exec.sexp_of_error
end