src/Pure/ML-Systems/use_context.ML

immutable theory values with full stamp record of every update (increase of stamp size for HOL: 20000 -> 100000, JinjaThreads: 65000 -> 300000) -- minimal measurable impact on inference kernel performance;

(*  Title:      Pure/ML-Systems/use_context.ML
    Author:     Makarius

Common context for "use" operations (compiler invocation).
*)

type use_context =
 {tune_source: string -> string,
  name_space: ML_Name_Space.T,
  str_of_pos: int -> string -> string,
  print: string -> unit,
  error: string -> unit};