wenzelm@48240
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(* Title: Pure/PIDE/command.ML
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wenzelm@48240
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Author: Makarius
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wenzelm@48240
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wenzelm@53671
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Prover command execution: read -- eval -- print.
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wenzelm@48240
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*)
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wenzelm@48240
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wenzelm@48240
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signature COMMAND =
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wenzelm@48240
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sig
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wenzelm@53737
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val read: (unit -> theory) -> Token.T list -> Toplevel.transition
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wenzelm@53737
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type eval
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wenzelm@53744
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val eval_eq: eval * eval -> bool
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wenzelm@53909
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val eval_finished: eval -> bool
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wenzelm@53673
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val eval_result_state: eval -> Toplevel.state
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wenzelm@53672
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val eval: (unit -> theory) -> Token.T list -> eval -> eval
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wenzelm@53737
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type print
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wenzelm@53707
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val print: bool -> string -> eval -> print list -> print list option
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wenzelm@53663
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type print_fn = Toplevel.transition -> Toplevel.state -> unit
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wenzelm@53784
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val print_function: string ->
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wenzelm@53788
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({command_name: string} ->
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wenzelm@53899
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{delay: Time.time option, pri: int, persistent: bool, print_fn: print_fn} option) -> unit
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wenzelm@53708
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val no_print_function: string -> unit
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wenzelm@53737
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type exec = eval * print list
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wenzelm@53737
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val no_exec: exec
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wenzelm@53737
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val exec_ids: exec option -> Document_ID.exec list
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wenzelm@53743
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val exec: Document_ID.execution -> exec -> unit
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wenzelm@48240
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end;
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wenzelm@48240
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wenzelm@48240
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structure Command: COMMAND =
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wenzelm@48240
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struct
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wenzelm@48240
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wenzelm@53898
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(** memo results -- including physical interrupts **)
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wenzelm@48245
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wenzelm@48245
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datatype 'a expr =
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wenzelm@53733
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Expr of Document_ID.exec * (unit -> 'a) |
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wenzelm@48245
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Result of 'a Exn.result;
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wenzelm@48245
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wenzelm@48245
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abstype 'a memo = Memo of 'a expr Synchronized.var
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wenzelm@48245
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with
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wenzelm@48245
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wenzelm@53733
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fun memo exec_id e = Memo (Synchronized.var "Command.memo" (Expr (exec_id, e)));
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wenzelm@48245
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fun memo_value a = Memo (Synchronized.var "Command.memo" (Result (Exn.Res a)));
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wenzelm@48245
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wenzelm@48246
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fun memo_result (Memo v) =
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wenzelm@48246
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(case Synchronized.value v of
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wenzelm@53744
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Expr (exec_id, _) => error ("Unfinished execution result: " ^ Document_ID.print exec_id)
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wenzelm@53744
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| Result res => Exn.release res);
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wenzelm@48245
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wenzelm@53793
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fun memo_finished (Memo v) =
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wenzelm@53793
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(case Synchronized.value v of
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wenzelm@53793
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Expr _ => false
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wenzelm@53793
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| Result res => not (Exn.is_interrupt_exn res));
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wenzelm@53793
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wenzelm@53744
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fun memo_exec execution_id (Memo v) =
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wenzelm@53911
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Synchronized.timed_access v (K (SOME Time.zeroTime))
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wenzelm@53746
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(fn expr =>
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wenzelm@53746
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(case expr of
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wenzelm@53794
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Expr (exec_id, e) =>
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wenzelm@53746
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uninterruptible (fn restore_attributes => fn () =>
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wenzelm@53746
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if Execution.running execution_id exec_id then
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wenzelm@53746
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let
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wenzelm@53746
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val res = Exn.capture (restore_attributes e) ();
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wenzelm@53746
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val _ = Execution.finished exec_id;
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wenzelm@53794
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in SOME (Exn.is_interrupt_exn res, Result res) end
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wenzelm@53794
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else SOME (true, expr)) ()
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wenzelm@53794
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| Result _ => SOME (false, expr)))
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wenzelm@53911
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|> (fn SOME false => ()
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wenzelm@53911
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| SOME true => Exn.interrupt ()
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wenzelm@53911
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| NONE => error "Conflicting command execution");
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wenzelm@53733
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wenzelm@53744
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fun memo_fork params execution_id (Memo v) =
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wenzelm@53733
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(case Synchronized.value v of
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wenzelm@53733
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Result _ => ()
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wenzelm@53744
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| _ => ignore ((singleton o Future.forks) params (fn () => memo_exec execution_id (Memo v))));
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wenzelm@53663
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wenzelm@48245
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end;
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wenzelm@48245
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wenzelm@48245
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wenzelm@53744
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wenzelm@53673
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(** main phases of execution **)
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wenzelm@53673
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wenzelm@53647
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(* read *)
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wenzelm@53646
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wenzelm@53671
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fun read init span =
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wenzelm@53647
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let
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wenzelm@53647
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val outer_syntax = #2 (Outer_Syntax.get_syntax ());
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wenzelm@53647
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val command_reports = Outer_Syntax.command_reports outer_syntax;
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wenzelm@53646
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wenzelm@53671
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val proper_range =
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wenzelm@53671
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Position.set_range (Token.position_range_of (#1 (take_suffix Token.is_improper span)));
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wenzelm@53647
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val pos =
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wenzelm@53647
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(case find_first Token.is_command span of
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wenzelm@53647
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SOME tok => Token.position_of tok
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wenzelm@53647
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| NONE => proper_range);
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wenzelm@53646
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wenzelm@53647
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val (is_malformed, token_reports) = Thy_Syntax.reports_of_tokens span;
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wenzelm@53647
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val _ = Position.reports_text (token_reports @ maps command_reports span);
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wenzelm@53647
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in
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wenzelm@53647
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if is_malformed then Toplevel.malformed pos "Malformed command syntax"
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wenzelm@53647
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else
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wenzelm@53647
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(case Outer_Syntax.read_spans outer_syntax span of
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wenzelm@53647
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[tr] =>
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wenzelm@53647
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if Keyword.is_control (Toplevel.name_of tr) then
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wenzelm@53647
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Toplevel.malformed pos "Illegal control command"
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wenzelm@53671
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else Toplevel.modify_init init tr
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wenzelm@53671
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| [] => Toplevel.ignored (Position.set_range (Token.position_range_of span))
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wenzelm@53647
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| _ => Toplevel.malformed proper_range "Exactly one command expected")
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wenzelm@53647
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handle ERROR msg => Toplevel.malformed proper_range msg
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wenzelm@53647
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end;
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wenzelm@53646
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wenzelm@53646
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(* eval *)
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wenzelm@53737
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type eval_state =
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wenzelm@53737
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{failed: bool, malformed: bool, command: Toplevel.transition, state: Toplevel.state};
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wenzelm@53737
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val init_eval_state =
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wenzelm@53737
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{failed = false, malformed = false, command = Toplevel.empty, state = Toplevel.toplevel};
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wenzelm@53737
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wenzelm@53737
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datatype eval = Eval of {exec_id: Document_ID.exec, eval_process: eval_state memo};
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wenzelm@53737
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wenzelm@53744
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fun eval_eq (Eval {exec_id, ...}, Eval {exec_id = exec_id', ...}) = exec_id = exec_id';
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wenzelm@53744
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wenzelm@53909
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fun eval_finished (Eval {eval_process, ...}) = memo_finished eval_process;
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wenzelm@53909
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wenzelm@53737
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fun eval_result (Eval {eval_process, ...}) = memo_result eval_process;
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wenzelm@53737
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val eval_result_state = #state o eval_result;
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wenzelm@53737
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local
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wenzelm@48240
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fun run int tr st =
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wenzelm@52421
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if Goal.future_enabled () andalso Keyword.is_diag (Toplevel.name_of tr) then
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wenzelm@52742
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(Goal.fork_params {name = "Toplevel.diag", pos = Toplevel.pos_of tr, pri = ~1}
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wenzelm@52742
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(fn () => Toplevel.command_exception int tr st); ([], SOME st))
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wenzelm@52421
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else Toplevel.command_errors int tr st;
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wenzelm@48240
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wenzelm@53647
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fun check_cmts span tr st' =
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wenzelm@53647
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Toplevel.setmp_thread_position tr
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wenzelm@53647
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(fn () =>
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wenzelm@53647
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Outer_Syntax.side_comments span |> maps (fn cmt =>
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wenzelm@53647
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(Thy_Output.check_text (Token.source_position_of cmt) st'; [])
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wenzelm@53756
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handle exn =>
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wenzelm@53756
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if Exn.is_interrupt exn then reraise exn
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wenzelm@53756
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else ML_Compiler.exn_messages_ids exn)) ();
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wenzelm@53647
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wenzelm@48240
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fun proof_status tr st =
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wenzelm@48240
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(case try Toplevel.proof_of st of
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wenzelm@48240
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SOME prf => Toplevel.status tr (Proof.status_markup prf)
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wenzelm@48240
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| NONE => ());
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wenzelm@48240
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wenzelm@53671
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fun eval_state span tr ({malformed, state = st, ...}: eval_state) =
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wenzelm@53646
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if malformed then
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wenzelm@53663
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{failed = true, malformed = malformed, command = tr, state = Toplevel.toplevel}
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wenzelm@49787
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else
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wenzelm@49787
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let
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wenzelm@49787
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val malformed' = Toplevel.is_malformed tr;
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wenzelm@49787
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val is_init = Toplevel.is_init tr;
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wenzelm@49787
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val is_proof = Keyword.is_proof (Toplevel.name_of tr);
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wenzelm@48240
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wenzelm@49787
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val _ = Multithreading.interrupted ();
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wenzelm@51216
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val _ = Toplevel.status tr Markup.running;
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wenzelm@49933
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val (errs1, result) = run (is_init orelse is_proof) (Toplevel.set_print false tr) st;
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wenzelm@53646
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val errs2 = (case result of NONE => [] | SOME st' => check_cmts span tr st');
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wenzelm@49933
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val errs = errs1 @ errs2;
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wenzelm@51216
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val _ = Toplevel.status tr Markup.finished;
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wenzelm@51929
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val _ = List.app (Future.error_msg (Toplevel.pos_of tr)) errs;
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wenzelm@49787
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in
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wenzelm@49787
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(case result of
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wenzelm@49787
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NONE =>
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wenzelm@49787
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let
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wenzelm@49787
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val _ = if null errs then Exn.interrupt () else ();
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wenzelm@51216
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val _ = Toplevel.status tr Markup.failed;
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wenzelm@53663
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in {failed = true, malformed = malformed', command = tr, state = st} end
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wenzelm@49787
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| SOME st' =>
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wenzelm@49787
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let
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wenzelm@49787
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val _ = proof_status tr st';
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wenzelm@53663
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in {failed = false, malformed = malformed', command = tr, state = st'} end)
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wenzelm@49787
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end;
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wenzelm@48240
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wenzelm@53671
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in
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wenzelm@53671
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wenzelm@53671
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fun eval init span eval0 =
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wenzelm@53671
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let
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wenzelm@53671
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val exec_id = Document_ID.make ();
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wenzelm@53671
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fun process () =
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wenzelm@53671
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let
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wenzelm@53671
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val tr =
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wenzelm@53671
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Position.setmp_thread_data (Position.id_only (Document_ID.print exec_id))
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wenzelm@53673
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(fn () => read init span |> Toplevel.exec_id exec_id) ();
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wenzelm@53671
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in eval_state span tr (eval_result eval0) end;
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wenzelm@53737
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in Eval {exec_id = exec_id, eval_process = memo exec_id process} end;
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wenzelm@53671
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wenzelm@48240
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end;
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wenzelm@48240
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wenzelm@53646
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wenzelm@53646
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(* print *)
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wenzelm@53646
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wenzelm@53737
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datatype print = Print of
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wenzelm@53899
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{name: string, delay: Time.time option, pri: int, persistent: bool,
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wenzelm@53737
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exec_id: Document_ID.exec, print_process: unit memo};
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wenzelm@53737
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wenzelm@53663
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type print_fn = Toplevel.transition -> Toplevel.state -> unit;
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wenzelm@53652
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wenzelm@53784
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type print_function =
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wenzelm@53788
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{command_name: string} ->
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wenzelm@53899
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{delay: Time.time option, pri: int, persistent: bool, print_fn: print_fn} option;
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wenzelm@53784
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wenzelm@53648
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local
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wenzelm@53648
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wenzelm@53784
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val print_functions =
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wenzelm@53784
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Synchronized.var "Command.print_functions" ([]: (string * print_function) list);
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wenzelm@53648
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wenzelm@53707
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fun print_error tr e =
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wenzelm@53756
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(Toplevel.setmp_thread_position tr o Runtime.controlled_execution) e ()
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wenzelm@53756
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handle exn =>
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wenzelm@53756
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if Exn.is_interrupt exn then reraise exn
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wenzelm@53756
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else List.app (Future.error_msg (Toplevel.pos_of tr)) (ML_Compiler.exn_messages_ids exn);
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wenzelm@53653
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wenzelm@53744
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fun print_eq (Print {exec_id, ...}, Print {exec_id = exec_id', ...}) = exec_id = exec_id';
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wenzelm@53744
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wenzelm@53898
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fun print_finished (Print {exec_id, print_process, ...}) = memo_finished print_process;
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wenzelm@53793
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wenzelm@53737
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fun print_persistent (Print {persistent, ...}) = persistent;
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wenzelm@53733
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wenzelm@53648
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in
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wenzelm@53646
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wenzelm@53707
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fun print command_visible command_name eval old_prints =
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wenzelm@53707
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let
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wenzelm@53784
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227 |
fun new_print (name, get_pr) =
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wenzelm@53707
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228 |
let
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wenzelm@53788
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fun make_print strict {delay, pri, persistent, print_fn} =
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wenzelm@53707
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let
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wenzelm@53707
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val exec_id = Document_ID.make ();
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wenzelm@53707
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fun process () =
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wenzelm@53707
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233 |
let
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wenzelm@53707
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val {failed, command, state = st', ...} = eval_result eval;
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wenzelm@53707
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val tr = Toplevel.exec_id exec_id command;
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wenzelm@53707
|
236 |
in
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wenzelm@53707
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if failed andalso not strict then ()
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wenzelm@53707
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else print_error tr (fn () => print_fn tr st')
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wenzelm@53707
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239 |
end;
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wenzelm@53709
|
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in
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wenzelm@53737
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Print {
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wenzelm@53788
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242 |
name = name, delay = delay, pri = pri, persistent = persistent,
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wenzelm@53737
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243 |
exec_id = exec_id, print_process = memo exec_id process}
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wenzelm@53709
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244 |
end;
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wenzelm@53707
|
245 |
in
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wenzelm@53784
|
246 |
(case Exn.capture (Runtime.controlled_execution get_pr) {command_name = command_name} of
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wenzelm@53707
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247 |
Exn.Res NONE => NONE
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wenzelm@53784
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248 |
| Exn.Res (SOME pr) => SOME (make_print false pr)
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wenzelm@53784
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249 |
| Exn.Exn exn =>
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wenzelm@53784
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250 |
SOME (make_print true
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wenzelm@53899
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251 |
{delay = NONE, pri = 0, persistent = false, print_fn = fn _ => fn _ => reraise exn}))
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wenzelm@53707
|
252 |
end;
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wenzelm@53707
|
253 |
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wenzelm@53707
|
254 |
val new_prints =
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wenzelm@53707
|
255 |
if command_visible then
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wenzelm@53707
|
256 |
rev (Synchronized.value print_functions) |> map_filter (fn pr =>
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wenzelm@53737
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257 |
(case find_first (fn Print {name, ...} => name = fst pr) old_prints of
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wenzelm@53898
|
258 |
NONE => new_print pr
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wenzelm@53898
|
259 |
| some => some))
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wenzelm@53793
|
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else filter (fn print => print_finished print andalso print_persistent print) old_prints;
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wenzelm@53707
|
261 |
in
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wenzelm@53737
|
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if eq_list print_eq (old_prints, new_prints) then NONE else SOME new_prints
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wenzelm@53707
|
263 |
end;
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wenzelm@53648
|
264 |
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wenzelm@53784
|
265 |
fun print_function name f =
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wenzelm@53648
|
266 |
Synchronized.change print_functions (fn funs =>
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wenzelm@53648
|
267 |
(if not (AList.defined (op =) funs name) then ()
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wenzelm@53648
|
268 |
else warning ("Redefining command print function: " ^ quote name);
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wenzelm@53784
|
269 |
AList.update (op =) (name, f) funs));
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wenzelm@53648
|
270 |
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wenzelm@53708
|
271 |
fun no_print_function name =
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wenzelm@53708
|
272 |
Synchronized.change print_functions (filter_out (equal name o #1));
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wenzelm@53708
|
273 |
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wenzelm@53648
|
274 |
end;
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wenzelm@53648
|
275 |
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wenzelm@53663
|
276 |
val _ =
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wenzelm@53784
|
277 |
print_function "print_state"
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wenzelm@53788
|
278 |
(fn {command_name} =>
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wenzelm@53899
|
279 |
SOME {delay = NONE, pri = 1, persistent = true,
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wenzelm@53788
|
280 |
print_fn = fn tr => fn st' =>
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wenzelm@53788
|
281 |
let
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wenzelm@53788
|
282 |
val is_init = Keyword.is_theory_begin command_name;
|
wenzelm@53788
|
283 |
val is_proof = Keyword.is_proof command_name;
|
wenzelm@53788
|
284 |
val do_print =
|
wenzelm@53788
|
285 |
not is_init andalso
|
wenzelm@53788
|
286 |
(Toplevel.print_of tr orelse (is_proof andalso Toplevel.is_proof st'));
|
wenzelm@53788
|
287 |
in if do_print then Toplevel.print_state false st' else () end});
|
wenzelm@53646
|
288 |
|
wenzelm@53669
|
289 |
|
wenzelm@53737
|
290 |
(* combined execution *)
|
wenzelm@53669
|
291 |
|
wenzelm@53737
|
292 |
type exec = eval * print list;
|
wenzelm@53737
|
293 |
val no_exec: exec =
|
wenzelm@53737
|
294 |
(Eval {exec_id = Document_ID.none, eval_process = memo_value init_eval_state}, []);
|
wenzelm@53737
|
295 |
|
wenzelm@53737
|
296 |
fun exec_ids NONE = []
|
wenzelm@53737
|
297 |
| exec_ids (SOME (Eval {exec_id, ...}, prints)) =
|
wenzelm@53737
|
298 |
exec_id :: map (fn Print {exec_id, ...} => exec_id) prints;
|
wenzelm@53737
|
299 |
|
wenzelm@53737
|
300 |
local
|
wenzelm@53737
|
301 |
|
wenzelm@53788
|
302 |
fun run_print execution_id (Print {name, delay, pri, print_process, ...}) =
|
wenzelm@53788
|
303 |
if Multithreading.enabled () then
|
wenzelm@53788
|
304 |
let
|
wenzelm@53788
|
305 |
val group = Future.worker_subgroup ();
|
wenzelm@53788
|
306 |
fun fork () =
|
wenzelm@53788
|
307 |
memo_fork {name = name, group = SOME group, deps = [], pri = pri, interrupts = true}
|
wenzelm@53788
|
308 |
execution_id print_process;
|
wenzelm@53788
|
309 |
in
|
wenzelm@53899
|
310 |
(case delay of
|
wenzelm@53899
|
311 |
NONE => fork ()
|
wenzelm@53899
|
312 |
| SOME d => ignore (Event_Timer.request (Time.+ (Time.now (), d)) fork))
|
wenzelm@53788
|
313 |
end
|
wenzelm@53788
|
314 |
else memo_exec execution_id print_process;
|
wenzelm@53696
|
315 |
|
wenzelm@53737
|
316 |
in
|
wenzelm@53737
|
317 |
|
wenzelm@53744
|
318 |
fun exec execution_id (Eval {eval_process, ...}, prints) =
|
wenzelm@53744
|
319 |
(memo_exec execution_id eval_process; List.app (run_print execution_id) prints);
|
wenzelm@53669
|
320 |
|
wenzelm@48240
|
321 |
end;
|
wenzelm@48240
|
322 |
|
wenzelm@53737
|
323 |
end;
|
wenzelm@53737
|
324 |
|