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(************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) (* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) open Vernacexpr open CErrors open Pp let default_proof_mode () = Proof_global.get_default_proof_mode_name () [@ocaml.warning "-3"] let string_of_in_script b = if b then " (inside script)" else "" let string_of_parallel = function | `Yes (solve,abs) -> "par" ^ if solve then "solve" else "" ^ if abs then "abs" else "" | `No -> "" let string_of_vernac_type = function | VtUnknown -> "Unknown" | VtStartProof _ -> "StartProof" | VtSideff _ -> "Sideff" | VtQed VtKeep -> "Qed(keep)" | VtQed VtKeepAsAxiom -> "Qed(admitted)" | VtQed VtDrop -> "Qed(drop)" | VtProofStep { parallel; proof_block_detection } -> "ProofStep " ^ string_of_parallel parallel ^ Option.default "" proof_block_detection | VtProofMode s -> "ProofMode " ^ s | VtQuery (b, route) -> "Query " ^ string_of_in_script b ^ " route " ^ string_of_int route | VtMeta -> "Meta " let string_of_vernac_when = function | VtLater -> "Later" | VtNow -> "Now" let string_of_vernac_classification (t,w) = string_of_vernac_type t ^ " " ^ string_of_vernac_when w let classifiers = ref [] let declare_vernac_classifier (s : Vernacexpr.extend_name) (f : Genarg.raw_generic_argument list -> unit -> vernac_classification) = classifiers := !classifiers @ [s,f] let make_polymorphic (a, b as x) = match a with | VtStartProof (x, _, ids) -> VtStartProof (x, Doesn'tGuaranteeOpacity, ids), b | _ -> x let rec classify_vernac e = let static_classifier e = match e with (* Univ poly compatibility: we run it now, so that we can just * look at Flags in stm.ml. Would be nicer to have the stm * look at the entire dag to detect this option. *) | VernacSetOption (["Universe"; "Polymorphism"],_) | VernacUnsetOption (["Universe"; "Polymorphism"]) -> VtSideff [], VtNow (* Nested vernac exprs *) | VernacProgram e -> classify_vernac e | VernacLocal (_,e) -> classify_vernac e | VernacPolymorphic (b, e) -> if b || Flags.is_universe_polymorphism () (* Ok or not? *) then make_polymorphic (classify_vernac e) else classify_vernac e | VernacTimeout (_,e) -> classify_vernac e | VernacTime (_,e) | VernacRedirect (_, (_,e)) -> classify_vernac e | VernacFail e -> (* Fail Qed or Fail Lemma must not join/fork the DAG *) (match classify_vernac e with | ( VtQuery _ | VtProofStep _ | VtSideff _ | VtProofMode _ | VtMeta), _ as x -> x | VtQed _, _ -> VtProofStep { parallel = `No; proof_block_detection = None }, VtNow | (VtStartProof _ | VtUnknown), _ -> VtUnknown, VtNow) (* Qed *) | VernacAbort _ -> VtQed VtDrop, VtLater | VernacEndProof Admitted -> VtQed VtKeepAsAxiom, VtLater | VernacEndProof _ | VernacExactProof _ -> VtQed VtKeep, VtLater (* Query *) | VernacShow _ | VernacPrint _ | VernacSearch _ | VernacLocate _ | VernacCheckMayEval _ -> VtQuery (true,Feedback.default_route), VtLater (* ProofStep *) | VernacProof _ | VernacFocus _ | VernacUnfocus | VernacSubproof _ | VernacCheckGuard | VernacUnfocused | VernacSolveExistential _ -> VtProofStep { parallel = `No; proof_block_detection = None }, VtLater | VernacBullet _ -> VtProofStep { parallel = `No; proof_block_detection = Some "bullet" }, VtLater | VernacEndSubproof -> VtProofStep { parallel = `No; proof_block_detection = Some "curly" }, VtLater (* Options changing parser *) | VernacUnsetOption (["Default";"Proof";"Using"]) | VernacSetOption (["Default";"Proof";"Using"],_) -> VtSideff [], VtNow (* StartProof *) | VernacDefinition ((Decl_kinds.DoDischarge,_),((_,i),_),ProveBody _) -> VtStartProof(default_proof_mode (),Doesn'tGuaranteeOpacity,[i]), VtLater | VernacDefinition (_,((_,i),_),ProveBody _) -> VtStartProof(default_proof_mode (),GuaranteesOpacity,[i]), VtLater | VernacStartTheoremProof (_,l) -> let ids = CList.map_filter (function (Some ((_,i),pl), _) -> Some i | _ -> None) l in VtStartProof (default_proof_mode (),GuaranteesOpacity,ids), VtLater | VernacGoal _ -> VtStartProof (default_proof_mode (),GuaranteesOpacity,[]), VtLater | VernacFixpoint (discharge,l) -> let guarantee = match discharge with | Decl_kinds.NoDischarge -> GuaranteesOpacity | Decl_kinds.DoDischarge -> Doesn'tGuaranteeOpacity in let ids, open_proof = List.fold_left (fun (l,b) ((((_,id),_),_,_,_,p),_) -> id::l, b || p = None) ([],false) l in if open_proof then VtStartProof (default_proof_mode (),guarantee,ids), VtLater else VtSideff ids, VtLater | VernacCoFixpoint (discharge,l) -> let guarantee = match discharge with | Decl_kinds.NoDischarge -> GuaranteesOpacity | Decl_kinds.DoDischarge -> Doesn'tGuaranteeOpacity in let ids, open_proof = List.fold_left (fun (l,b) ((((_,id),_),_,_,p),_) -> id::l, b || p = None) ([],false) l in if open_proof then VtStartProof (default_proof_mode (),guarantee,ids), VtLater else VtSideff ids, VtLater (* Sideff: apply to all open branches. usually run on master only *) | VernacAssumption (_,_,l) -> let ids = List.flatten (List.map (fun (_,(l,_)) -> List.map (fun (id, _) -> snd id) l) l) in VtSideff ids, VtLater | VernacDefinition (_,((_,id),_),DefineBody _) -> VtSideff [id], VtLater | VernacInductive (_, _,_,l) -> let ids = List.map (fun (((_,((_,id),_)),_,_,_,cl),_) -> id :: match cl with | Constructors l -> List.map (fun (_,((_,id),_)) -> id) l | RecordDecl (oid,l) -> (match oid with Some (_,x) -> [x] | _ -> []) @ CList.map_filter (function | ((_,AssumExpr((_,Names.Name n),_)),_),_ -> Some n | _ -> None) l) l in VtSideff (List.flatten ids), VtLater | VernacScheme l -> let ids = List.map snd (CList.map_filter (fun (x,_) -> x) l) in VtSideff ids, VtLater | VernacCombinedScheme ((_,id),_) -> VtSideff [id], VtLater | VernacBeginSection (_,id) -> VtSideff [id], VtLater | VernacUniverse _ | VernacConstraint _ | VernacCanonical _ | VernacCoercion _ | VernacIdentityCoercion _ | VernacAddLoadPath _ | VernacRemoveLoadPath _ | VernacAddMLPath _ | VernacChdir _ | VernacCreateHintDb _ | VernacRemoveHints _ | VernacHints _ | VernacDeclareImplicits _ | VernacArguments _ | VernacArgumentsScope _ | VernacReserve _ | VernacGeneralizable _ | VernacSetOpacity _ | VernacSetStrategy _ | VernacUnsetOption _ | VernacSetOption _ | VernacSetAppendOption _ | VernacAddOption _ | VernacRemoveOption _ | VernacMemOption _ | VernacPrintOption _ | VernacGlobalCheck _ | VernacDeclareReduction _ | VernacDeclareClass _ | VernacDeclareInstances _ | VernacRegister _ | VernacNameSectionHypSet _ | VernacComments _ -> VtSideff [], VtLater (* Who knows *) | VernacLoad _ -> VtSideff [], VtNow (* (Local) Notations have to disappear *) | VernacEndSegment _ -> VtSideff [], VtNow (* Modules with parameters have to be executed: can import notations *) | VernacDeclareModule (exp,(_,id),bl,_) | VernacDefineModule (exp,(_,id),bl,_,_) -> VtSideff [id], if bl = [] && exp = None then VtLater else VtNow | VernacDeclareModuleType ((_,id),bl,_,_) -> VtSideff [id], if bl = [] then VtLater else VtNow (* These commands alter the parser *) | VernacOpenCloseScope _ | VernacDelimiters _ | VernacBindScope _ | VernacInfix _ | VernacNotation _ | VernacNotationAddFormat _ | VernacSyntaxExtension _ | VernacSyntacticDefinition _ | VernacRequire _ | VernacImport _ | VernacInclude _ | VernacDeclareMLModule _ | VernacContext _ (* TASSI: unsure *) | VernacProofMode _ (* These are ambiguous *) | VernacInstance _ -> VtUnknown, VtNow (* Stm will install a new classifier to handle these *) | VernacBack _ | VernacAbortAll | VernacUndoTo _ | VernacUndo _ | VernacResetName _ | VernacResetInitial | VernacBacktrack _ | VernacBackTo _ | VernacRestart -> VtMeta, VtNow (* What are these? *) | VernacToplevelControl _ | VernacRestoreState _ | VernacWriteState _ -> VtUnknown, VtNow (* Plugins should classify their commands *) | VernacExtend (s,l) -> try List.assoc s !classifiers l () with Not_found -> anomaly(str"No classifier for"++spc()++str (fst s)++str".") in let res = static_classifier e in if Flags.is_universe_polymorphism () then make_polymorphic res else res let classify_as_query = VtQuery (true,Feedback.default_route), VtLater let classify_as_sideeff = VtSideff [], VtLater let classify_as_proofstep = VtProofStep { parallel = `No; proof_block_detection = None}, VtLater