just one dedicated execution per document version -- NB: non-monotonicity of cancel always requires fresh update;
explicit terminate_execution;
tuned source structure;
(* Title: Pure/PIDE/protocol.ML
Author: Makarius
Protocol message formats for interactive proof documents.
*)
structure Protocol: sig end =
struct
val _ =
Isabelle_Process.protocol_command "Document.define_command"
(fn [id, name, text] =>
Document.change_state (Document.define_command (Document.parse_id id) name text));
val _ =
Isabelle_Process.protocol_command "Document.discontinue_execution"
(fn [] => Document.discontinue_execution (Document.state ()));
val _ =
Isabelle_Process.protocol_command "Document.cancel_execution"
(fn [] => Document.cancel_execution (Document.state ()));
val _ =
Isabelle_Process.protocol_command "Document.update"
(fn [old_id_string, new_id_string, edits_yxml] => Document.change_state (fn state =>
let
val _ = Document.cancel_execution state;
val old_id = Document.parse_id old_id_string;
val new_id = Document.parse_id new_id_string;
val edits =
YXML.parse_body edits_yxml |>
let open XML.Decode in
list (pair string
(variant
[fn ([], []) => Document.Clear,
fn ([], a) => Document.Edits (list (pair (option int) (option int)) a),
fn ([], a) =>
let
val ((((master, name), imports), keywords), uses) =
pair (pair (pair (pair string string) (list string))
(list (pair string (option (pair string (list string))))))
(list (pair string bool)) a;
val res =
Exn.capture (fn () =>
(master, Thy_Header.make name imports keywords
(map (apfst Path.explode) uses))) ();
in Document.Header res end,
fn ([a], []) => Document.Header (Exn.Exn (ERROR a)),
fn (a, []) => Document.Perspective (map int_atom a)]))
end;
val (assignment, state') = Document.update old_id new_id edits state;
val _ =
Output.protocol_message Isabelle_Markup.assign_execs
((new_id, assignment) |>
let open XML.Encode
in pair int (list (pair int (option int))) end
|> YXML.string_of_body);
val _ = Document.start_execution state';
in state' end));
val _ =
Isabelle_Process.protocol_command "Document.remove_versions"
(fn [versions_yxml] => Document.change_state (fn state =>
let
val versions =
YXML.parse_body versions_yxml |>
let open XML.Decode in list int end;
val state1 = Document.remove_versions versions state;
val _ = Output.protocol_message Isabelle_Markup.removed_versions versions_yxml;
in state1 end));
val _ =
Isabelle_Process.protocol_command "Document.invoke_scala"
(fn [id, tag, res] => Invoke_Scala.fulfill_method id tag res);
end;