1 (* Title: Pure/PIDE/command.ML
4 Prover command execution: read -- eval -- print.
9 type blob = (string * string option) Exn.result
10 val read_file: Path.T -> Position.T -> Path.T -> Token.file
11 val read: (unit -> theory) -> Path.T -> blob list -> Token.T list -> Toplevel.transition
13 val eval_eq: eval * eval -> bool
14 val eval_running: eval -> bool
15 val eval_finished: eval -> bool
16 val eval_result_state: eval -> Toplevel.state
17 val eval: (unit -> theory) -> Path.T -> blob list -> Token.T list -> eval -> eval
19 val print: bool -> (string * string list) list -> string ->
20 eval -> print list -> print list option
21 type print_fn = Toplevel.transition -> Toplevel.state -> unit
23 {command_name: string, args: string list} ->
24 {delay: Time.time option, pri: int, persistent: bool, strict: bool, print_fn: print_fn} option
25 val print_function: string -> print_function -> unit
26 val no_print_function: string -> unit
27 type exec = eval * print list
29 val exec_ids: exec option -> Document_ID.exec list
30 val exec: Document_ID.execution -> exec -> unit
33 structure Command: COMMAND =
39 Expr of Document_ID.exec * (unit -> 'a) |
40 Result of 'a Exn.result;
42 abstype 'a memo = Memo of 'a expr Synchronized.var
45 fun memo exec_id e = Memo (Synchronized.var "Command.memo" (Expr (exec_id, e)));
46 fun memo_value a = Memo (Synchronized.var "Command.memo" (Result (Exn.Res a)));
48 fun memo_result (Memo v) =
49 (case Synchronized.value v of
50 Expr (exec_id, _) => error ("Unfinished execution result: " ^ Document_ID.print exec_id)
51 | Result res => Exn.release res);
53 fun memo_finished (Memo v) =
54 (case Synchronized.value v of Expr _ => false | Result _ => true);
56 fun memo_exec execution_id (Memo v) =
57 Synchronized.timed_access v (K (SOME Time.zeroTime))
60 Expr (exec_id, body) =>
61 uninterruptible (fn restore_attributes => fn () =>
62 if Execution.running execution_id exec_id [Future.the_worker_group ()] then
67 |> Future.worker_nest "Command.memo_exec"
68 |> Exn.interruptible_capture) ();
69 in SOME ((), Result res) end
70 else SOME ((), expr)) ()
71 | Result _ => SOME ((), expr)))
72 |> (fn NONE => error "Conflicting command execution" | _ => ());
74 fun memo_fork params execution_id (Memo v) =
75 (case Synchronized.value v of
77 | _ => ignore ((singleton o Future.forks) params (fn () => memo_exec execution_id (Memo v))));
83 (** main phases of execution **)
87 type blob = (string * string option) Exn.result; (*file node name, digest or text*)
89 fun read_file master_dir pos src_path =
91 val full_path = File.check_file (File.full_path master_dir src_path);
92 val _ = Position.report pos (Markup.path (Path.implode full_path));
93 in {src_path = src_path, text = File.read full_path, pos = Path.position full_path} end;
95 fun resolve_files master_dir blobs toks =
96 (case Thy_Syntax.parse_spans toks of
98 |> Thy_Syntax.resolve_files (fn cmd => fn (path, pos) =>
100 fun make_file src_path (Exn.Res (_, NONE)) =
101 Exn.interruptible_capture (fn () => read_file master_dir pos src_path) ()
102 | make_file src_path (Exn.Res (file, SOME text)) =
103 let val _ = Position.report pos (Markup.path file)
104 in Exn.Res {src_path = src_path, text = text, pos = Position.file file} end
105 | make_file _ (Exn.Exn e) = Exn.Exn e;
107 val src_paths = Keyword.command_files cmd path;
109 if null blobs then []
110 else if length src_paths <> length blobs then
111 error ("Misalignment of inlined files" ^ Position.here pos)
112 else map2 make_file src_paths blobs
114 |> Thy_Syntax.span_content
117 fun read init master_dir blobs span =
119 val outer_syntax = #2 (Outer_Syntax.get_syntax ());
120 val command_reports = Outer_Syntax.command_reports outer_syntax;
123 Position.set_range (Token.position_range_of (#1 (take_suffix Token.is_improper span)));
125 (case find_first Token.is_command span of
126 SOME tok => Token.position_of tok
127 | NONE => proper_range);
129 val (is_malformed, token_reports) = Thy_Syntax.reports_of_tokens span;
130 val _ = Position.reports_text (token_reports @ maps command_reports span);
132 if is_malformed then Toplevel.malformed pos "Malformed command syntax"
134 (case Outer_Syntax.read_spans outer_syntax (resolve_files master_dir blobs span) of
136 if Keyword.is_control (Toplevel.name_of tr) then
137 Toplevel.malformed pos "Illegal control command"
138 else Toplevel.modify_init init tr
139 | [] => Toplevel.ignored (Position.set_range (Token.position_range_of span))
140 | _ => Toplevel.malformed proper_range "Exactly one command expected")
141 handle ERROR msg => Toplevel.malformed proper_range msg
148 {failed: bool, malformed: bool, command: Toplevel.transition, state: Toplevel.state};
149 val init_eval_state =
150 {failed = false, malformed = false, command = Toplevel.empty, state = Toplevel.toplevel};
152 datatype eval = Eval of {exec_id: Document_ID.exec, eval_process: eval_state memo};
154 fun eval_eq (Eval {exec_id, ...}, Eval {exec_id = exec_id', ...}) = exec_id = exec_id';
156 fun eval_running (Eval {exec_id, ...}) = Execution.is_running_exec exec_id;
157 fun eval_finished (Eval {eval_process, ...}) = memo_finished eval_process;
159 fun eval_result (Eval {eval_process, ...}) = memo_result eval_process;
160 val eval_result_state = #state o eval_result;
165 if Goal.future_enabled 1 andalso Keyword.is_diag (Toplevel.name_of tr) then
166 (Execution.fork {name = "Toplevel.diag", pos = Toplevel.pos_of tr, pri = ~1}
167 (fn () => Toplevel.command_exception int tr st); ([], SOME st))
168 else Toplevel.command_errors int tr st;
170 fun check_cmts span tr st' =
171 Toplevel.setmp_thread_position tr
173 Outer_Syntax.side_comments span |> maps (fn cmt =>
174 (Thy_Output.check_text (Token.source_position_of cmt) st'; [])
176 if Exn.is_interrupt exn then reraise exn
177 else ML_Compiler.exn_messages_ids exn)) ();
179 fun proof_status tr st =
180 (case try Toplevel.proof_of st of
181 SOME prf => Toplevel.status tr (Proof.status_markup prf)
184 fun eval_state span tr ({malformed, state = st, ...}: eval_state) =
186 {failed = true, malformed = malformed, command = tr, state = Toplevel.toplevel}
189 val malformed' = Toplevel.is_malformed tr;
190 val is_init = Toplevel.is_init tr;
191 val is_proof = Keyword.is_proof (Toplevel.name_of tr);
193 val _ = Multithreading.interrupted ();
194 val _ = Toplevel.status tr Markup.running;
195 val (errs1, result) = run (is_init orelse is_proof) (Toplevel.set_print false tr) st;
196 val errs2 = (case result of NONE => [] | SOME st' => check_cmts span tr st');
197 val errs = errs1 @ errs2;
198 val _ = Toplevel.status tr Markup.finished;
199 val _ = List.app (Future.error_msg (Toplevel.pos_of tr)) errs;
204 val _ = if null errs then Exn.interrupt () else ();
205 val _ = Toplevel.status tr Markup.failed;
206 in {failed = true, malformed = malformed', command = tr, state = st} end
209 val _ = proof_status tr st';
210 in {failed = false, malformed = malformed', command = tr, state = st'} end)
215 fun eval init master_dir blobs span eval0 =
217 val exec_id = Document_ID.make ();
221 Position.setmp_thread_data (Position.id_only (Document_ID.print exec_id))
222 (fn () => read init master_dir blobs span |> Toplevel.exec_id exec_id) ();
223 in eval_state span tr (eval_result eval0) end;
224 in Eval {exec_id = exec_id, eval_process = memo exec_id process} end;
231 datatype print = Print of
232 {name: string, args: string list, delay: Time.time option, pri: int, persistent: bool,
233 exec_id: Document_ID.exec, print_process: unit memo};
235 type print_fn = Toplevel.transition -> Toplevel.state -> unit;
237 type print_function =
238 {command_name: string, args: string list} ->
239 {delay: Time.time option, pri: int, persistent: bool, strict: bool, print_fn: print_fn} option;
243 val print_functions =
244 Synchronized.var "Command.print_functions" ([]: (string * print_function) list);
246 fun print_error tr e =
247 (Toplevel.setmp_thread_position tr o Toplevel.controlled_execution) e ()
249 if Exn.is_interrupt exn then reraise exn
250 else List.app (Future.error_msg (Toplevel.pos_of tr)) (ML_Compiler.exn_messages_ids exn);
252 fun print_eq (Print {exec_id, ...}, Print {exec_id = exec_id', ...}) = exec_id = exec_id';
254 fun print_finished (Print {print_process, ...}) = memo_finished print_process;
256 fun print_persistent (Print {persistent, ...}) = persistent;
258 val overlay_ord = prod_ord string_ord (list_ord string_ord);
262 fun print command_visible command_overlays command_name eval old_prints =
264 val print_functions = Synchronized.value print_functions;
266 fun make_print name args {delay, pri, persistent, strict, print_fn} =
268 val exec_id = Document_ID.make ();
271 val {failed, command, state = st', ...} = eval_result eval;
272 val tr = Toplevel.exec_id exec_id command;
274 if failed andalso strict then ()
275 else print_error tr (fn () => print_fn tr st')
279 name = name, args = args, delay = delay, pri = pri, persistent = persistent,
280 exec_id = exec_id, print_process = memo exec_id process}
283 fun bad_print name args exn =
284 make_print name args {delay = NONE, pri = 0, persistent = false,
285 strict = false, print_fn = fn _ => fn _ => reraise exn};
287 fun new_print name args get_pr =
289 val params = {command_name = command_name, args = args};
291 (case Exn.capture (Toplevel.controlled_execution get_pr) params of
293 | Exn.Res (SOME pr) => SOME (make_print name args pr)
294 | Exn.Exn exn => SOME (bad_print name args exn))
297 fun get_print (a, b) =
298 (case find_first (fn Print {name, args, ...} => name = a andalso args = b) old_prints of
300 (case AList.lookup (op =) print_functions a of
301 NONE => SOME (bad_print a b (ERROR ("Missing print function " ^ quote a)))
302 | SOME get_pr => new_print a b get_pr)
306 if command_visible then
307 fold (fn (a, _) => cons (a, [])) print_functions command_overlays
308 |> sort_distinct overlay_ord
309 |> map_filter get_print
310 else filter (fn print => print_finished print andalso print_persistent print) old_prints;
312 if eq_list print_eq (old_prints, new_prints) then NONE else SOME new_prints
315 fun print_function name f =
316 Synchronized.change print_functions (fn funs =>
317 (if not (AList.defined (op =) funs name) then ()
318 else warning ("Redefining command print function: " ^ quote name);
319 AList.update (op =) (name, f) funs));
321 fun no_print_function name =
322 Synchronized.change print_functions (filter_out (equal name o #1));
327 print_function "print_state"
328 (fn {command_name, ...} =>
329 SOME {delay = NONE, pri = 1, persistent = false, strict = true,
330 print_fn = fn tr => fn st' =>
332 val is_init = Keyword.is_theory_begin command_name;
333 val is_proof = Keyword.is_proof command_name;
336 (Toplevel.print_of tr orelse (is_proof andalso Toplevel.is_proof st'));
337 in if do_print then Toplevel.print_state false st' else () end});
340 (* combined execution *)
342 type exec = eval * print list;
344 (Eval {exec_id = Document_ID.none, eval_process = memo_value init_eval_state}, []);
346 fun exec_ids NONE = []
347 | exec_ids (SOME (Eval {exec_id, ...}, prints)) =
348 exec_id :: map (fn Print {exec_id, ...} => exec_id) prints;
352 fun run_print execution_id (Print {name, delay, pri, print_process, ...}) =
353 if Multithreading.enabled () orelse pri <= 0 then
355 val group = Future.worker_subgroup ();
357 memo_fork {name = name, group = SOME group, deps = [], pri = pri, interrupts = true}
358 execution_id print_process;
362 | SOME d => ignore (Event_Timer.request (Time.+ (Time.now (), d)) fork))
364 else memo_exec execution_id print_process;
368 fun exec execution_id (Eval {eval_process, ...}, prints) =
369 (memo_exec execution_id eval_process; List.app (run_print execution_id) prints);