src/Pure/Isar/toplevel.ML
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Wed, 10 Jan 2007 20:16:52 +0100
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(*  Title:      Pure/Isar/toplevel.ML
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    ID:         $Id$
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    Author:     Markus Wenzel, TU Muenchen
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The Isabelle/Isar toplevel.
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*)
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signature TOPLEVEL =
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sig
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  exception UNDEF
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  type generic_theory
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  type node
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  val theory_node: node -> generic_theory option
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  val proof_node: node -> ProofHistory.T option
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  val cases_node: (generic_theory -> 'a) -> (Proof.state -> 'a) -> node -> 'a
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  val presentation_context: node option -> xstring option -> Proof.context
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  type state
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  val is_toplevel: state -> bool
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  val is_theory: state -> bool
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  val is_proof: state -> bool
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  val level: state -> int
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  val node_history_of: state -> node History.T
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  val node_of: state -> node
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  val node_case: (generic_theory -> 'a) -> (Proof.state -> 'a) -> state -> 'a
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  val context_of: state -> Proof.context
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  val theory_of: state -> theory
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  val proof_of: state -> Proof.state
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  val proof_position_of: state -> int
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  val enter_proof_body: state -> Proof.state
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  val prompt_state_default: state -> string
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  val prompt_state_fn: (state -> string) ref
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  val print_state_context: state -> unit
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  val print_state_default: bool -> state -> unit
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  val print_state_fn: (bool -> state -> unit) ref
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  val print_state: bool -> state -> unit
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  val pretty_state: bool -> state -> Pretty.T list
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  val quiet: bool ref
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  val debug: bool ref
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  val interact: bool ref
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  val timing: bool ref
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  val profiling: int ref
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  val skip_proofs: bool ref
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  exception TERMINATE
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  exception RESTART
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  val exn_message: exn -> string
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  val program: (unit -> 'a) -> 'a
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  type transition
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  val undo_limit: bool -> int option
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  val empty: transition
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  val name_of: transition -> string
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  val source_of: transition -> OuterLex.token list option
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  val name: string -> transition -> transition
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  val position: Position.T -> transition -> transition
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  val source: OuterLex.token list -> transition -> transition
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  val interactive: bool -> transition -> transition
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  val print: transition -> transition
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  val print': string -> transition -> transition
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  val three_buffersN: string
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  val print3: transition -> transition
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  val no_timing: transition -> transition
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  val init_theory: (bool -> theory) -> (theory -> unit) -> (theory -> unit) ->
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    transition -> transition
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  val init_empty: (state -> unit) -> transition -> transition
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  val exit: transition -> transition
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  val undo_exit: transition -> transition
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  val kill: transition -> transition
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  val history: (node History.T -> node History.T) -> transition -> transition
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  val keep: (state -> unit) -> transition -> transition
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  val keep': (bool -> state -> unit) -> transition -> transition
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  val imperative: (unit -> unit) -> transition -> transition
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  val theory: (theory -> theory) -> transition -> transition
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  val theory': (bool -> theory -> theory) -> transition -> transition
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  val begin_local_theory: bool -> (theory -> local_theory) -> transition -> transition
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  val end_local_theory: transition -> transition
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  val local_theory: xstring option -> (local_theory -> local_theory) -> transition -> transition
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  val present_local_theory: xstring option -> (bool -> node -> unit) -> transition -> transition
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  val local_theory_to_proof: xstring option -> (local_theory -> Proof.state) ->
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    transition -> transition
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  val theory_to_proof: (theory -> Proof.state) -> transition -> transition
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  val end_proof: (bool -> Proof.state -> Proof.context) -> transition -> transition
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  val forget_proof: transition -> transition
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  val present_proof: (bool -> node -> unit) -> transition -> transition
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  val proofs': (bool -> Proof.state -> Proof.state Seq.seq) -> transition -> transition
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  val proof': (bool -> Proof.state -> Proof.state) -> transition -> transition
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  val proofs: (Proof.state -> Proof.state Seq.seq) -> transition -> transition
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  val proof: (Proof.state -> Proof.state) -> transition -> transition
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  val actual_proof: (ProofHistory.T -> ProofHistory.T) -> transition -> transition
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  val skip_proof: (int History.T -> int History.T) -> transition -> transition
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  val skip_proof_to_theory: (int -> bool) -> transition -> transition
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  val unknown_theory: transition -> transition
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  val unknown_proof: transition -> transition
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  val unknown_context: transition -> transition
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  val present_excursion: (transition * (state -> state -> 'a -> 'a)) list -> 'a -> 'a
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  val excursion: transition list -> unit
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  val set_state: state -> unit
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  val get_state: unit -> state
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  val exn: unit -> (exn * string) option
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  val >> : transition -> bool
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  val >>> : transition list -> unit
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  val init_state: unit -> unit
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  type 'a isar
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  val loop: 'a isar -> unit
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end;
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structure Toplevel: TOPLEVEL =
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struct
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(** toplevel state **)
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exception UNDEF;
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(* local theory wrappers *)
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type generic_theory = Context.generic;    (*theory or local_theory*)
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val loc_init = TheoryTarget.init;
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val loc_exit = ProofContext.theory_of o LocalTheory.exit;
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fun loc_begin loc (Context.Theory thy) = loc_init loc thy
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  | loc_begin NONE (Context.Proof lthy) = lthy
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  | loc_begin loc (Context.Proof lthy) = loc_init loc (loc_exit lthy);
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fun loc_finish _ (Context.Theory _) = Context.Theory o loc_exit
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  | loc_finish NONE (Context.Proof _) = Context.Proof o LocalTheory.restore
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  | loc_finish (SOME _) (Context.Proof lthy) = Context.Proof o LocalTheory.reinit lthy o loc_exit;
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(* datatype node *)
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datatype node =
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  Theory of generic_theory * Proof.context option | (*theory with presentation context*)
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  Proof of ProofHistory.T * ((Proof.context -> generic_theory) * generic_theory) |
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    (*history of proof states, finish, original theory*)
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  SkipProof of int History.T * (generic_theory * generic_theory);
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    (*history of proof depths, resulting theory, original theory*)
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val the_global_theory = fn Theory (Context.Theory thy, _) => thy | _ => raise UNDEF;
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val theory_node = fn Theory (gthy, _) => SOME gthy | _ => NONE;
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val proof_node = fn Proof (prf, _) => SOME prf | _ => NONE;
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fun cases_node f _ (Theory (gthy, _)) = f gthy
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  | cases_node _ g (Proof (prf, _)) = g (ProofHistory.current prf)
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  | cases_node f _ (SkipProof (_, (gthy, _))) = f gthy;
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fun presentation_context (SOME (Theory (_, SOME ctxt))) NONE = ctxt
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  | presentation_context (SOME node) NONE = cases_node Context.proof_of Proof.context_of node
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  | presentation_context (SOME node) (SOME loc) =
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      loc_init (SOME loc) (cases_node Context.theory_of Proof.theory_of node)
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  | presentation_context NONE _ = raise UNDEF;
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(* datatype state *)
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type state_info = node History.T * ((theory -> unit) * (theory -> unit));
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datatype state =
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  Toplevel of state_info option |  (*outer toplevel, leftover end state*)
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  State of state_info;
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val toplevel = Toplevel NONE;
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fun is_toplevel (Toplevel _) = true
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  | is_toplevel _ = false;
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fun level (Toplevel _) = 0
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  | level (State (node, _)) =
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      (case History.current node of
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        Theory _ => 0
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      | Proof (prf, _) => Proof.level (ProofHistory.current prf)
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      | SkipProof (h, _) => History.current h + 1);   (*different notion of proof depth!*)
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fun str_of_state (Toplevel _) = "at top level"
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  | str_of_state (State (node, _)) =
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      (case History.current node of
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        Theory (Context.Theory _, _) => "in theory mode"
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      | Theory (Context.Proof _, _) => "in local theory mode"
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      | Proof _ => "in proof mode"
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      | SkipProof _ => "in skipped proof mode");
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(* top node *)
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fun node_history_of (Toplevel _) = raise UNDEF
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  | node_history_of (State (node, _)) = node;
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val node_of = History.current o node_history_of;
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fun is_theory state = not (is_toplevel state) andalso is_some (theory_node (node_of state));
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fun is_proof state = not (is_toplevel state) andalso is_some (proof_node (node_of state));
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fun node_case f g state = cases_node f g (node_of state);
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val context_of = node_case Context.proof_of Proof.context_of;
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val theory_of = node_case Context.theory_of Proof.theory_of;
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val proof_of = node_case (fn _ => raise UNDEF) I;
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fun proof_position_of state =
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  (case node_of state of
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    Proof (prf, _) => ProofHistory.position prf
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  | _ => raise UNDEF);
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val enter_proof_body = node_case (Proof.init o Context.proof_of) Proof.enter_forward;
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(* prompt state *)
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fun prompt_state_default (_: state) = Source.default_prompt;
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val prompt_state_fn = ref prompt_state_default;
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fun prompt_state state = ! prompt_state_fn state;
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(* print state *)
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val pretty_context = LocalTheory.pretty o Context.cases (loc_init NONE) I;
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fun pretty_state_context state =
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  (case try (node_case I (Context.Proof o Proof.context_of)) state of
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    NONE => []
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  | SOME gthy => pretty_context gthy);
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fun pretty_node prf_only (Theory (gthy, _)) = if prf_only then [] else pretty_context gthy
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  | pretty_node _ (Proof (prf, _)) =
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      Proof.pretty_state (ProofHistory.position prf) (ProofHistory.current prf)
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  | pretty_node _ (SkipProof (h, _)) =
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      [Pretty.str ("skipped proof: depth " ^ string_of_int (History.current h))];
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fun pretty_state prf_only state =
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  let val ref (begin_state, end_state, _) = Display.current_goals_markers in
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    (case try node_of state of NONE => []
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    | SOME node =>
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        (if begin_state = "" then [] else [Pretty.str begin_state]) @
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        pretty_node prf_only node @
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        (if end_state = "" then [] else [Pretty.str end_state]))
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  end;
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val print_state_context = Pretty.writelns o pretty_state_context;
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fun print_state_default prf_only state = Pretty.writelns (pretty_state prf_only state);
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val print_state_fn = ref print_state_default;
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fun print_state prf_only state = ! print_state_fn prf_only state;
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(** toplevel transitions **)
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val quiet = ref false;
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val debug = ref false;
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val interact = ref false;
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val timing = Output.timing;
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val profiling = ref 0;
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val skip_proofs = ref false;
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exception TERMINATE;
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exception RESTART;
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exception EXCURSION_FAIL of exn * string;
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exception FAILURE of state * exn;
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(* print exceptions *)
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local
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fun with_context f xs =
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  (case Context.get_context () of NONE => []
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  | SOME thy => map (f thy) xs);
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fun raised name [] = "exception " ^ name ^ " raised"
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  | raised name [msg] = "exception " ^ name ^ " raised: " ^ msg
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  | raised name msgs = cat_lines (("exception " ^ name ^ " raised:") :: msgs);
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fun exn_msg _ TERMINATE = "Exit."
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  | exn_msg _ RESTART = "Restart."
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  | exn_msg _ Interrupt = "Interrupt."
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  | exn_msg _ Output.TOPLEVEL_ERROR = "Error."
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  | exn_msg _ (SYS_ERROR msg) = "## SYSTEM ERROR ##\n" ^ msg
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  | exn_msg _ (ERROR msg) = msg
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  | exn_msg detailed (EXCEPTION (exn, msg)) = cat_lines [exn_msg detailed exn, msg]
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  | exn_msg detailed (EXCURSION_FAIL (exn, msg)) = cat_lines [exn_msg detailed exn, msg]
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  | exn_msg false (THEORY (msg, _)) = msg
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  | exn_msg true (THEORY (msg, thys)) = raised "THEORY" (msg :: map Context.str_of_thy thys)
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  | exn_msg detailed (MetaSimplifier.SIMPROC_FAIL (name, exn)) =
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      fail_msg detailed "simproc" ((name, Position.none), exn)
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  | exn_msg detailed (Attrib.ATTRIB_FAIL info) = fail_msg detailed "attribute" info
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  | exn_msg detailed (Method.METHOD_FAIL info) = fail_msg detailed "method" info
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  | exn_msg detailed (Antiquote.ANTIQUOTE_FAIL info) = fail_msg detailed "antiquotation" info
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  | exn_msg false (Syntax.AST (msg, _)) = raised "AST" [msg]
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  | exn_msg true (Syntax.AST (msg, asts)) =
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      raised "AST" (msg :: map (Pretty.string_of o Syntax.pretty_ast) asts)
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  | exn_msg false (TYPE (msg, _, _)) = raised "TYPE" [msg]
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  | exn_msg true (TYPE (msg, Ts, ts)) = raised "TYPE" (msg ::
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        with_context Sign.string_of_typ Ts @ with_context Sign.string_of_term ts)
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  | exn_msg false (TERM (msg, _)) = raised "TERM" [msg]
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  | exn_msg true (TERM (msg, ts)) = raised "TERM" (msg :: with_context Sign.string_of_term ts)
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  | exn_msg false (THM (msg, _, _)) = raised "THM" [msg]
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  | exn_msg true (THM (msg, i, thms)) =
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      raised ("THM " ^ string_of_int i) (msg :: map Display.string_of_thm thms)
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  | exn_msg _ Option.Option = raised "Option" []
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  | exn_msg _ Library.UnequalLengths = raised "UnequalLengths" []
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  | exn_msg _ Empty = raised "Empty" []
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  | exn_msg _ Subscript = raised "Subscript" []
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  | exn_msg _ (Fail msg) = raised "Fail" [msg]
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  | exn_msg _ exn = General.exnMessage exn
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and fail_msg detailed kind ((name, pos), exn) =
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  "Error in " ^ kind ^ " " ^ quote name ^ Position.str_of pos ^ ":\n" ^ exn_msg detailed exn;
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in
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fun exn_message exn = exn_msg (! debug) exn;
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fun print_exn NONE = ()
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  | print_exn (SOME (exn, s)) = Output.error_msg (cat_lines [exn_message exn, s]);
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end;
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(* controlled execution *)
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local
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fun debugging f x =
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  if ! debug then
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    setmp Library.do_transform_failure false
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      exception_trace (fn () => f x)
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  else f x;
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fun interruptible f x =
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  let val y = ref x
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  in raise_interrupt (fn () => y := f x) (); ! y end;
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in
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fun controlled_execution f =
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  f
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  |> debugging
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  |> interruptible
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  |> setmp Output.do_toplevel_errors false;
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fun program f =
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  Output.ML_errors (fn () => debugging f () handle exn => error (exn_message exn)) ();
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end;
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(* node transactions and recovery from stale theories *)
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(*NB: proof commands should be non-destructive!*)
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local
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71f3e0041f14 Context.DATA_FAIL;
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fun is_stale state = Context.is_stale (theory_of state) handle UNDEF => false;
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val stale_theory = ERROR "Stale theory encountered after succesful execution!";
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fun map_theory f = History.map
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   359
  (fn Theory (gthy, _) => Theory (Context.mapping f (LocalTheory.raw_theory f) gthy, NONE)
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    | node => node);
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fun return (result, NONE) = result
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   363
  | return (result, SOME exn) = raise FAILURE (result, exn);
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in
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   367
fun transaction hist f (node, term) =
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  let
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   369
    val cont_node = map_theory Theory.checkpoint node;
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   370
    val back_node = map_theory Theory.copy cont_node;
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    fun state nd = State (nd, term);
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    fun normal_state nd = (state nd, NONE);
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    fun error_state nd exn = (state nd, SOME exn);
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   375
    val (result, err) =
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   376
      cont_node
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   377
      |> (f
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   378
          |> (if hist then History.apply' (History.current back_node) else History.map)
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          |> controlled_execution)
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   380
      |> normal_state
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   381
      handle exn => error_state cont_node exn;
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   382
  in
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   383
    if is_stale result
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   384
    then return (error_state back_node (the_default stale_theory err))
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   385
    else return (result, err)
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   386
  end;
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   388
end;
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   390
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   391
(* primitive transitions *)
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   392
18563
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   393
(*Note: Recovery from stale theories is provided only for theory-level
18589
c27c9fa9e83d hide type datatype node;
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   394
  operations via Transaction.  Other node or state operations should
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   395
  not touch theories at all.  Interrupts are enabled only for Keep and
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   396
  Transaction.*)
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1feeadaad6a9 The Isabelle/Isar toplevel.
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   397
1feeadaad6a9 The Isabelle/Isar toplevel.
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   398
datatype trans =
22056
858016d00449 fixed exit: proper type check of state;
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parents: 22014
diff changeset
   399
  Init of (bool -> theory) * ((theory -> unit) * (theory -> unit)) |
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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   400
                                                    (*init node; with exit/kill operation*)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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parents: 21861
diff changeset
   401
  InitEmpty of state -> unit |                      (*init empty toplevel*)
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   402
  Exit |                                            (*conclude node -- deferred until init*)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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parents: 21861
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   403
  UndoExit |                                        (*continue after conclusion*)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
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   404
  Kill |                                            (*abort node*)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   405
  History of node History.T -> node History.T |     (*history operation (undo etc.)*)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   406
  Keep of bool -> state -> unit |                   (*peek at state*)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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parents: 21861
diff changeset
   407
  Transaction of bool * (bool -> node -> node);     (*node transaction*)
6689
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diff changeset
   408
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08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   409
fun undo_limit int = if int then NONE else SOME 0;
6689
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parents: 6664
diff changeset
   410
22056
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   411
fun safe_exit (Toplevel (SOME (node, (exit, _)))) =
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wenzelm
parents: 22014
diff changeset
   412
    (case try the_global_theory (History.current node) of
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   413
      SOME thy => exit thy
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   414
    | NONE => ())
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   415
  | safe_exit _ = ();
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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parents: 21861
diff changeset
   416
6689
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   417
local
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   418
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   419
fun keep_state int f = controlled_execution (fn x => tap (f int) x);
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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parents: 21861
diff changeset
   420
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
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parents: 21861
diff changeset
   421
fun apply_tr int (Init (f, term)) (state as Toplevel _) =
22056
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   422
      let val node = Theory (Context.Theory (f int), NONE)
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   423
      in safe_exit state; State (History.init (undo_limit int) node, term) end
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   424
  | apply_tr int (InitEmpty f) state =
22056
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   425
      (keep_state int (K f) state; safe_exit state; toplevel)
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   426
  | apply_tr _ Exit (State (node, term)) =
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   427
      (the_global_theory (History.current node); Toplevel (SOME (node, term)))
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   428
  | apply_tr _ UndoExit (Toplevel (SOME state_info)) = State state_info
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   429
  | apply_tr _ Kill (State (node, (_, kill))) =
22056
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   430
      (kill (the_global_theory (History.current node)); toplevel)
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   431
  | apply_tr _ (History f) (State (node, term)) = State (f node, term)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   432
  | apply_tr int (Keep f) state = keep_state int f state
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   433
  | apply_tr int (Transaction (hist, f)) (State state) =
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   434
      transaction hist (fn x => f int x) state
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   435
  | apply_tr _ _ _ = raise UNDEF;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   436
6689
wenzelm
parents: 6664
diff changeset
   437
fun apply_union _ [] state = raise FAILURE (state, UNDEF)
wenzelm
parents: 6664
diff changeset
   438
  | apply_union int (tr :: trs) state =
18685
725660906cb3 sane ERROR vs. TOPLEVEL_ERROR handling;
wenzelm
parents: 18664
diff changeset
   439
      apply_tr int tr state
6689
wenzelm
parents: 6664
diff changeset
   440
        handle UNDEF => apply_union int trs state
wenzelm
parents: 6664
diff changeset
   441
          | FAILURE (alt_state, UNDEF) => apply_union int trs alt_state
wenzelm
parents: 6664
diff changeset
   442
          | exn as FAILURE _ => raise exn
wenzelm
parents: 6664
diff changeset
   443
          | exn => raise FAILURE (state, exn);
wenzelm
parents: 6664
diff changeset
   444
wenzelm
parents: 6664
diff changeset
   445
in
wenzelm
parents: 6664
diff changeset
   446
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   447
fun apply_trans int trs state = (apply_union int trs state, NONE)
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   448
  handle FAILURE (alt_state, exn) => (alt_state, SOME exn) | exn => (state, SOME exn);
6689
wenzelm
parents: 6664
diff changeset
   449
wenzelm
parents: 6664
diff changeset
   450
end;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   451
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   452
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   453
(* datatype transition *)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   454
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   455
datatype transition = Transition of
16815
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   456
 {name: string,                        (*command name*)
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   457
  pos: Position.T,                     (*source position*)
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   458
  source: OuterLex.token list option,  (*source text*)
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   459
  int_only: bool,                      (*interactive-only*)
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   460
  print: string list,                  (*print modes (union)*)
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   461
  no_timing: bool,                     (*suppress timing*)
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   462
  trans: trans list};                  (*primitive transitions (union)*)
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   463
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   464
fun make_transition (name, pos, source, int_only, print, no_timing, trans) =
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   465
  Transition {name = name, pos = pos, source = source,
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   466
    int_only = int_only, print = print, no_timing = no_timing, trans = trans};
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   467
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   468
fun map_transition f (Transition {name, pos, source, int_only, print, no_timing, trans}) =
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   469
  make_transition (f (name, pos, source, int_only, print, no_timing, trans));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   470
16607
81e687c63e29 added print': print depending on print_mode;
wenzelm
parents: 16490
diff changeset
   471
val empty = make_transition ("<unknown>", Position.none, NONE, false, [], false, []);
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   472
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   473
fun name_of (Transition {name, ...}) = name;
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   474
fun source_of (Transition {source, ...}) = source;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   475
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   476
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   477
(* diagnostics *)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   478
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   479
fun str_of_transition (Transition {name, pos, ...}) = quote name ^ Position.str_of pos;
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   480
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   481
fun command_msg msg tr = msg ^ "command " ^ str_of_transition tr;
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   482
fun at_command tr = command_msg "At " tr ^ ".";
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   483
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   484
fun type_error tr state =
18685
725660906cb3 sane ERROR vs. TOPLEVEL_ERROR handling;
wenzelm
parents: 18664
diff changeset
   485
  ERROR (command_msg "Illegal application of " tr ^ " " ^ str_of_state state);
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   486
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   487
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   488
(* modify transitions *)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   489
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   490
fun name nm = map_transition (fn (_, pos, source, int_only, print, no_timing, trans) =>
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   491
  (nm, pos, source, int_only, print, no_timing, trans));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   492
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   493
fun position pos = map_transition (fn (name, _, source, int_only, print, no_timing, trans) =>
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   494
  (name, pos, source, int_only, print, no_timing, trans));
9010
ce78dc5e1a73 Toplevel.no_timing;
wenzelm
parents: 8999
diff changeset
   495
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   496
fun source src = map_transition (fn (name, pos, _, int_only, print, no_timing, trans) =>
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   497
  (name, pos, SOME src, int_only, print, no_timing, trans));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   498
14923
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   499
fun interactive int_only = map_transition (fn (name, pos, source, _, print, no_timing, trans) =>
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   500
  (name, pos, source, int_only, print, no_timing, trans));
8a32071c3c13 added name_of, source_of, source;
wenzelm
parents: 14825
diff changeset
   501
17363
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   502
val no_timing = map_transition (fn (name, pos, source, int_only, print, _, trans) =>
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   503
  (name, pos, source, int_only, print, true, trans));
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   504
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   505
fun add_trans tr = map_transition (fn (name, pos, source, int_only, print, no_timing, trans) =>
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   506
  (name, pos, source, int_only, print, no_timing, trans @ [tr]));
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   507
16607
81e687c63e29 added print': print depending on print_mode;
wenzelm
parents: 16490
diff changeset
   508
fun print' mode = map_transition (fn (name, pos, source, int_only, print, no_timing, trans) =>
81e687c63e29 added print': print depending on print_mode;
wenzelm
parents: 16490
diff changeset
   509
  (name, pos, source, int_only, insert (op =) mode print, no_timing, trans));
81e687c63e29 added print': print depending on print_mode;
wenzelm
parents: 16490
diff changeset
   510
81e687c63e29 added print': print depending on print_mode;
wenzelm
parents: 16490
diff changeset
   511
val print = print' "";
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   512
17363
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   513
val three_buffersN = "three_buffers";
046c829c075f added three_buffersN, print3;
wenzelm
parents: 17321
diff changeset
   514
val print3 = print' three_buffersN;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   515
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   516
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   517
(* basic transitions *)
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   518
22056
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   519
fun init_theory f exit kill = add_trans (Init (f, (exit, kill)));
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   520
val init_empty = add_trans o InitEmpty;
6689
wenzelm
parents: 6664
diff changeset
   521
val exit = add_trans Exit;
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   522
val undo_exit = add_trans UndoExit;
6689
wenzelm
parents: 6664
diff changeset
   523
val kill = add_trans Kill;
20128
8f0e07d7cf92 keep/transaction: unified execution model (with debugging etc.);
wenzelm
parents: 19996
diff changeset
   524
val history = add_trans o History;
7612
ba11b5db431a added keep', theory';
wenzelm
parents: 7602
diff changeset
   525
val keep' = add_trans o Keep;
18592
451d622bb4a9 transactions now always see quasi-functional intermediate checkpoint;
wenzelm
parents: 18589
diff changeset
   526
fun map_current f = add_trans (Transaction (false, f));
451d622bb4a9 transactions now always see quasi-functional intermediate checkpoint;
wenzelm
parents: 18589
diff changeset
   527
fun app_current f = add_trans (Transaction (true, f));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   528
7612
ba11b5db431a added keep', theory';
wenzelm
parents: 7602
diff changeset
   529
fun keep f = add_trans (Keep (fn _ => f));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   530
fun imperative f = keep (fn _ => f ());
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   531
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   532
val unknown_theory = imperative (fn () => warning "Unknown theory context");
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   533
val unknown_proof = imperative (fn () => warning "Unknown proof context");
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   534
val unknown_context = imperative (fn () => warning "Unknown context");
15668
53c049a365cf improved exn_message;
wenzelm
parents: 15633
diff changeset
   535
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   536
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   537
(* theory transitions *)
15668
53c049a365cf improved exn_message;
wenzelm
parents: 15633
diff changeset
   538
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   539
fun theory' f = app_current (fn int =>
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   540
  (fn Theory (Context.Theory thy, _) => Theory (Context.Theory (f int thy), NONE)
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   541
    | _ => raise UNDEF));
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   542
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   543
fun theory f = theory' (K f);
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   544
21294
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   545
fun begin_local_theory begin f = app_current (fn _ =>
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   546
  (fn Theory (Context.Theory thy, _) =>
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   547
        let
20985
de13e2a23c8e exit_local_theory: pass interactive flag;
wenzelm
parents: 20963
diff changeset
   548
          val lthy = f thy;
21294
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   549
          val gthy = if begin then Context.Proof lthy else Context.Theory (loc_exit lthy);
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   550
        in Theory (gthy, SOME lthy) end
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   551
    | _ => raise UNDEF));
17076
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   552
21294
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   553
val end_local_theory = app_current (fn _ =>
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   554
  (fn Theory (Context.Proof lthy, _) => Theory (Context.Theory (loc_exit lthy), SOME lthy)
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   555
    | _ => raise UNDEF));
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   556
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   557
local
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   558
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   559
fun local_theory_presentation loc f g = app_current (fn int =>
21294
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   560
  (fn Theory (gthy, _) =>
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   561
        let
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   562
          val finish = loc_finish loc gthy;
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   563
          val lthy' = f (loc_begin loc gthy);
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   564
        in Theory (finish lthy', SOME lthy') end
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   565
    | _ => raise UNDEF) #> tap (g int));
15668
53c049a365cf improved exn_message;
wenzelm
parents: 15633
diff changeset
   566
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   567
in
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   568
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   569
fun local_theory loc f = local_theory_presentation loc f (K I);
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   570
fun present_local_theory loc g = local_theory_presentation loc I g;
18955
fa71f2ddd2e8 added local_theory, with optional locale xname;
wenzelm
parents: 18811
diff changeset
   571
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   572
end;
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   573
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   574
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   575
(* proof transitions *)
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   576
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   577
fun end_proof f = map_current (fn int =>
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   578
  (fn Proof (prf, (finish, orig_gthy)) =>
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   579
        let val state = ProofHistory.current prf in
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   580
          if can (Proof.assert_bottom true) state then
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   581
            let
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   582
              val ctxt' = f int state;
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   583
              val gthy' = finish ctxt';
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   584
            in Theory (gthy', SOME ctxt') end
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   585
          else raise UNDEF
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   586
        end
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   587
    | SkipProof (h, (gthy, _)) =>
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   588
        if History.current h = 0 then Theory (gthy, NONE) else raise UNDEF
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   589
    | _ => raise UNDEF));
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   590
21294
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   591
local
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   592
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   593
fun begin_proof init finish = app_current (fn int =>
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   594
  (fn Theory (gthy, _) =>
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   595
    let
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   596
      val prf = init gthy;
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   597
      val schematic = Proof.schematic_goal prf;
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   598
    in
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   599
      if ! skip_proofs andalso schematic then
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   600
        warning "Cannot skip proof of schematic goal statement"
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   601
      else ();
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   602
      if ! skip_proofs andalso not schematic then
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   603
        SkipProof
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   604
          (History.init (undo_limit int) 0, (finish gthy (Proof.global_skip_proof int prf), gthy))
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   605
      else Proof (ProofHistory.init (undo_limit int) prf, (finish gthy, gthy))
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   606
    end
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   607
  | _ => raise UNDEF));
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   608
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   609
in
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   610
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   611
fun local_theory_to_proof loc f = begin_proof (f o loc_begin loc) (loc_finish loc);
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   612
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   613
fun theory_to_proof f = begin_proof
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   614
    (fn Context.Theory thy => f thy | _ => raise UNDEF)
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   615
    (K (Context.Theory o ProofContext.theory_of));
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   616
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   617
end;
5cd48242ef17 simplified local theory wrappers;
wenzelm
parents: 21277
diff changeset
   618
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   619
val forget_proof = map_current (fn _ =>
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   620
  (fn Proof (_, (_, orig_gthy)) => Theory (orig_gthy, NONE)
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   621
    | SkipProof (_, (_, orig_gthy)) => Theory (orig_gthy, NONE)
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   622
    | _ => raise UNDEF));
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   623
21177
e8228486aa03 removed checkpoint interface;
wenzelm
parents: 21007
diff changeset
   624
fun present_proof f = map_current (fn int =>
e8228486aa03 removed checkpoint interface;
wenzelm
parents: 21007
diff changeset
   625
  (fn Proof (prf, x) => Proof (ProofHistory.apply I prf, x)
e8228486aa03 removed checkpoint interface;
wenzelm
parents: 21007
diff changeset
   626
    | SkipProof (h, x) => SkipProof (History.apply I h, x)
e8228486aa03 removed checkpoint interface;
wenzelm
parents: 21007
diff changeset
   627
    | _ => raise UNDEF) #> tap (f int));
e8228486aa03 removed checkpoint interface;
wenzelm
parents: 21007
diff changeset
   628
17904
21c6894b5998 simplified interfaces proof/proof' etc.: perform ProofHistory.apply(s)/current internally;
wenzelm
parents: 17513
diff changeset
   629
fun proofs' f = map_current (fn int =>
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   630
  (fn Proof (prf, x) => Proof (ProofHistory.applys (f int) prf, x)
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   631
    | SkipProof (h, x) => SkipProof (History.apply I h, x)
16815
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   632
    | _ => raise UNDEF));
15668
53c049a365cf improved exn_message;
wenzelm
parents: 15633
diff changeset
   633
17904
21c6894b5998 simplified interfaces proof/proof' etc.: perform ProofHistory.apply(s)/current internally;
wenzelm
parents: 17513
diff changeset
   634
fun proof' f = proofs' (Seq.single oo f);
21c6894b5998 simplified interfaces proof/proof' etc.: perform ProofHistory.apply(s)/current internally;
wenzelm
parents: 17513
diff changeset
   635
val proofs = proofs' o K;
6689
wenzelm
parents: 6664
diff changeset
   636
val proof = proof' o K;
16815
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   637
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   638
fun actual_proof f = map_current (fn _ =>
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   639
  (fn Proof (prf, x) => Proof (f prf, x)
20963
a7fd8f05a2be added type global_theory -- theory or local_theory;
wenzelm
parents: 20928
diff changeset
   640
    | _ => raise UNDEF));
16815
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   641
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   642
fun skip_proof f = map_current (fn _ =>
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   643
  (fn SkipProof (h, x) => SkipProof (f h, x)
18563
wenzelm
parents: 17904
diff changeset
   644
    | _ => raise UNDEF));
wenzelm
parents: 17904
diff changeset
   645
16815
13d20ed9086c added print_state_hook;
wenzelm
parents: 16729
diff changeset
   646
fun skip_proof_to_theory p = map_current (fn _ =>
21007
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   647
  (fn SkipProof (h, (gthy, _)) =>
1bbb31aaf98d renamed enter_forward_proof to enter_proof_body;
wenzelm
parents: 20985
diff changeset
   648
    if p (History.current h) then Theory (gthy, NONE)
17904
21c6894b5998 simplified interfaces proof/proof' etc.: perform ProofHistory.apply(s)/current internally;
wenzelm
parents: 17513
diff changeset
   649
    else raise UNDEF
21c6894b5998 simplified interfaces proof/proof' etc.: perform ProofHistory.apply(s)/current internally;
wenzelm
parents: 17513
diff changeset
   650
  | _ => raise UNDEF));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   651
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   652
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   653
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   654
(** toplevel transactions **)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   655
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   656
(* apply transitions *)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   657
6664
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   658
local
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   659
9010
ce78dc5e1a73 Toplevel.no_timing;
wenzelm
parents: 8999
diff changeset
   660
fun app int (tr as Transition {trans, int_only, print, no_timing, ...}) state =
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   661
  let
21962
279b129498b6 removed conditional combinator;
wenzelm
parents: 21958
diff changeset
   662
    val _ =
279b129498b6 removed conditional combinator;
wenzelm
parents: 21958
diff changeset
   663
      if not int andalso int_only then warning (command_msg "Interactive-only " tr)
279b129498b6 removed conditional combinator;
wenzelm
parents: 21958
diff changeset
   664
      else ();
16682
wenzelm
parents: 16658
diff changeset
   665
18685
725660906cb3 sane ERROR vs. TOPLEVEL_ERROR handling;
wenzelm
parents: 18664
diff changeset
   666
    fun do_timing f x = (Output.info (command_msg "" tr); timeap f x);
16682
wenzelm
parents: 16658
diff changeset
   667
    fun do_profiling f x = profile (! profiling) f x;
wenzelm
parents: 16658
diff changeset
   668
6689
wenzelm
parents: 6664
diff changeset
   669
    val (result, opt_exn) =
16729
24c5c94aa967 debug: exception_trace;
wenzelm
parents: 16682
diff changeset
   670
       state |> (apply_trans int trans
24c5c94aa967 debug: exception_trace;
wenzelm
parents: 16682
diff changeset
   671
        |> (if ! profiling > 0 then do_profiling else I)
24c5c94aa967 debug: exception_trace;
wenzelm
parents: 16682
diff changeset
   672
        |> (if ! profiling > 0 orelse ! timing andalso not no_timing then do_timing else I));
21962
279b129498b6 removed conditional combinator;
wenzelm
parents: 21958
diff changeset
   673
    val _ =
279b129498b6 removed conditional combinator;
wenzelm
parents: 21958
diff changeset
   674
      if int andalso not (! quiet) andalso exists (member (op =) print) ("" :: ! print_mode)
279b129498b6 removed conditional combinator;
wenzelm
parents: 21958
diff changeset
   675
      then print_state false result else ();
15570
8d8c70b41bab Move towards standard functions.
skalberg
parents: 15549
diff changeset
   676
  in (result, Option.map (fn UNDEF => type_error tr state | exn => exn) opt_exn) end;
6664
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   677
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   678
in
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   679
6689
wenzelm
parents: 6664
diff changeset
   680
fun apply int tr st =
6965
a766de752996 fixed interrupts (eliminated races);
wenzelm
parents: 6689
diff changeset
   681
  (case app int tr st of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   682
    (_, SOME TERMINATE) => NONE
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   683
  | (_, SOME RESTART) => SOME (toplevel, NONE)
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   684
  | (state', SOME (EXCURSION_FAIL exn_info)) => SOME (state', SOME exn_info)
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   685
  | (state', SOME exn) => SOME (state', SOME (exn, at_command tr))
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   686
  | (state', NONE) => SOME (state', NONE));
6664
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   687
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   688
end;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   689
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   690
17076
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   691
(* excursion: toplevel -- apply transformers/presentation -- toplevel *)
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   692
6664
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   693
local
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   694
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   695
fun excur [] x = x
17076
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   696
  | excur ((tr, pr) :: trs) (st, res) =
17321
227f1f5c3959 added interact flag to control mode of excursions;
wenzelm
parents: 17320
diff changeset
   697
      (case apply (! interact) tr st of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   698
        SOME (st', NONE) =>
18685
725660906cb3 sane ERROR vs. TOPLEVEL_ERROR handling;
wenzelm
parents: 18664
diff changeset
   699
          excur trs (st', pr st st' res handle exn =>
10324
498999fd7c37 tuned msg;
wenzelm
parents: 9512
diff changeset
   700
            raise EXCURSION_FAIL (exn, "Presentation failed\n" ^ at_command tr))
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   701
      | SOME (st', SOME exn_info) => raise EXCURSION_FAIL exn_info
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   702
      | NONE => raise EXCURSION_FAIL (TERMINATE, at_command tr));
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   703
17076
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   704
fun no_pr _ _ _ = ();
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   705
6664
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   706
in
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   707
17076
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   708
fun present_excursion trs res =
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   709
  (case excur trs (toplevel, res) of
22056
858016d00449 fixed exit: proper type check of state;
wenzelm
parents: 22014
diff changeset
   710
    (state as Toplevel _, res') => (safe_exit state; res')
18685
725660906cb3 sane ERROR vs. TOPLEVEL_ERROR handling;
wenzelm
parents: 18664
diff changeset
   711
  | _ => error "Unfinished development at end of input")
9134
b38e94631f19 excursion_result;
wenzelm
parents: 9010
diff changeset
   712
  handle exn => error (exn_message exn);
b38e94631f19 excursion_result;
wenzelm
parents: 9010
diff changeset
   713
17076
c7effdf2e2e2 state: body context;
wenzelm
parents: 16815
diff changeset
   714
fun excursion trs = present_excursion (map (rpair no_pr) trs) ();
7062
e992884b256d Toplevel.excursion_error;
wenzelm
parents: 7022
diff changeset
   715
6664
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   716
end;
f679ddd1ddd8 cleaned comments;
wenzelm
parents: 6244
diff changeset
   717
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   718
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   719
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   720
(** interactive transformations **)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   721
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   722
(* the global state reference *)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   723
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   724
val global_state = ref (toplevel, NONE: (exn * string) option);
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   725
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   726
fun set_state state = global_state := (state, NONE);
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   727
fun get_state () = fst (! global_state);
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   728
fun exn () = snd (! global_state);
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   729
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   730
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   731
(* apply transformers to global state *)
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   732
14985
fefcf6cd858a added >>> : transition list -> unit;
wenzelm
parents: 14981
diff changeset
   733
nonfix >> >>>;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   734
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   735
fun >> tr =
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   736
  (case apply true tr (get_state ()) of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   737
    NONE => false
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   738
  | SOME (state', exn_info) =>
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   739
      (global_state := (state', exn_info);
22014
4b70cbd96007 removed Toplevel.print_exn hook -- existing error_msg_fn does the job;
wenzelm
parents: 21986
diff changeset
   740
        print_exn exn_info;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   741
        true));
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   742
14985
fefcf6cd858a added >>> : transition list -> unit;
wenzelm
parents: 14981
diff changeset
   743
fun >>> [] = ()
fefcf6cd858a added >>> : transition list -> unit;
wenzelm
parents: 14981
diff changeset
   744
  | >>> (tr :: trs) = if >> tr then >>> trs else ();
fefcf6cd858a added >>> : transition list -> unit;
wenzelm
parents: 14981
diff changeset
   745
21958
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   746
fun init_state () = (>> (init_empty (K ()) empty); ());
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   747
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   748
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   749
(* the Isar source of transitions *)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   750
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   751
type 'a isar =
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   752
  (transition, (transition option,
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   753
    (OuterLex.token, (OuterLex.token option, (OuterLex.token, (OuterLex.token,
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   754
      Position.T * (Symbol.symbol, (string, 'a) Source.source) Source.source)
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   755
          Source.source) Source.source) Source.source) Source.source) Source.source) Source.source;
9dfd1ca4c0a0 refined notion of empty toplevel, admits undo of 'end';
wenzelm
parents: 21861
diff changeset
   756
17513
0393718c2f1c get_interrupt: special handling of IO.io now in ML-Systems/smlnj-basis-compat.ML;
wenzelm
parents: 17500
diff changeset
   757
(*Spurious interrupts ahead!  Race condition?*)
0393718c2f1c get_interrupt: special handling of IO.io now in ML-Systems/smlnj-basis-compat.ML;
wenzelm
parents: 17500
diff changeset
   758
fun get_interrupt src = SOME (Source.get_single src) handle Interrupt => NONE;
7602
2c0f407f80ce avoid interrupts of read loop;
wenzelm
parents: 7501
diff changeset
   759
20928
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   760
fun warn_secure () =
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   761
  let val secure = Secure.is_secure ()
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   762
  in if secure then warning "Cannot exit to ML in secure mode" else (); secure end;
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   763
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   764
fun raw_loop src =
7602
2c0f407f80ce avoid interrupts of read loop;
wenzelm
parents: 7501
diff changeset
   765
  (case get_interrupt (Source.set_prompt (prompt_state (get_state ())) src) of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15519
diff changeset
   766
    NONE => (writeln "\nInterrupt."; raw_loop src)
20928
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   767
  | SOME NONE => if warn_secure () then quit () else ()
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   768
  | SOME (SOME (tr, src')) =>
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   769
      if >> tr orelse warn_secure () then raw_loop src'
74910a189f1d loop: disallow exit in secure mode;
wenzelm
parents: 20891
diff changeset
   770
      else ());
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   771
12987
b6db96775e52 use ignore_interrupt, raise_interrupt;
wenzelm
parents: 12881
diff changeset
   772
fun loop src = ignore_interrupt raw_loop src;
5828
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   773
1feeadaad6a9 The Isabelle/Isar toplevel.
wenzelm
parents:
diff changeset
   774
end;