src/Pure/ML/ml_file.ML
author wenzelm
Wed, 12 Aug 2015 13:53:51 +0200
changeset 60916 a6e2a667b0a8
parent 60858 7bf2188a0998
child 60956 10d463883dc2
permissions -rw-r--r--
resolve undefined blobs by default, e.g. relevant for ML debugger to avoid reset of breakpoints after reload;

(*  Title:      Pure/ML/ml_file.ML
    Author:     Makarius

The 'ML_file' command.
*)

structure ML_File: sig end =
struct

val _ =
  Outer_Syntax.command ("ML_file", @{here}) "ML text from file"
    (Resources.parse_files "ML_file" >> (fn files => Toplevel.generic_theory (fn gthy =>
        let
          val [{src_path, lines, digest, pos}] = files (Context.theory_of gthy);
          val provide = Resources.provide (src_path, digest);
          val source = Input.source true (cat_lines lines) (pos, pos);
          val flags =
            {SML = false, exchange = false, redirect = true, verbose = true,
              writeln = writeln, warning = warning};
        in
          gthy
          |> ML_Context.exec (fn () => ML_Context.eval_source flags source)
          |> Local_Theory.propagate_ml_env
          |> Context.mapping provide (Local_Theory.background_theory provide)
        end)));

end;