diff options
| -rw-r--r-- | dev/doc/changes.md | 6 | ||||
| -rw-r--r-- | doc/sphinx/user-extensions/syntax-extensions.rst | 61 | ||||
| -rw-r--r-- | interp/constrextern.ml | 85 | ||||
| -rw-r--r-- | interp/notation.ml | 323 | ||||
| -rw-r--r-- | interp/notation.mli | 21 | ||||
| -rw-r--r-- | test-suite/output/Inductive.out | 2 | ||||
| -rw-r--r-- | test-suite/output/Notations.out | 2 | ||||
| -rw-r--r-- | test-suite/output/Notations.v | 6 | ||||
| -rw-r--r-- | test-suite/output/Notations2.v | 1 | ||||
| -rw-r--r-- | test-suite/output/Notations3.out | 42 | ||||
| -rw-r--r-- | test-suite/output/Notations3.v | 67 | ||||
| -rw-r--r-- | test-suite/output/Notations4.out | 24 | ||||
| -rw-r--r-- | test-suite/output/Notations4.v | 74 |
13 files changed, 171 insertions, 543 deletions
diff --git a/dev/doc/changes.md b/dev/doc/changes.md index 4533a4dc01..9e0d47651e 100644 --- a/dev/doc/changes.md +++ b/dev/doc/changes.md @@ -203,12 +203,6 @@ Termops - Internal printing functions have been placed under the `Termops.Internal` namespace. -Notations: - -- Notation.availability_of_notation is not anymore needed: if a - delimiter is needed, it is provided by Notation.uninterp_notation - which fails in case the notation is not available. - ### Unit testing The test suite now allows writing unit tests against OCaml code in the Coq diff --git a/doc/sphinx/user-extensions/syntax-extensions.rst b/doc/sphinx/user-extensions/syntax-extensions.rst index 63df3d37bf..3ca1dda4d6 100644 --- a/doc/sphinx/user-extensions/syntax-extensions.rst +++ b/doc/sphinx/user-extensions/syntax-extensions.rst @@ -1040,8 +1040,6 @@ interpreted in the scope stack extended with the scope bound tokey. To remove a delimiting key of a scope, use the command :n:`Undelimit Scope @scope` -.. _ArgumentScopes: - Binding arguments of a constant to an interpretation scope +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ @@ -1311,65 +1309,6 @@ Displaying information about scopes It also displays the delimiting key if any and the class to which the scope is bound, if any. -Impact of scopes on printing -~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -When several notations are available for printing the same expression, -Coq will use the following rules for printing priorities: - -- If two notations are available in different scopes which are open, - the notation in the more recently opened scope takes precedence. - -- If two notations are available in the same scope, the more recently - defined (or imported) notation takes precedence. - -- Abbreviations and lonely notations, both of which have no scope, - take precedence over a notation in an open scope if and only if the - abbreviation or lonely notation was defined (or imported) more - recently than when the corresponding scope was open. They take - precedence over any notation not in an open scope, whether this scope - has a delimiter or not. - -- A scope is *active* for printing a term either because it was opened - with :cmd:`Open Scope`, or the term is the immediate argument of a - constant which temporarily opens a scope for this argument (see - :ref:`Arguments <ArgumentScopes>`) in which case this temporary - scope is the most recent open one. - -- In case no abbreviation, nor lonely notation, nor notation in an - explicitly open scope, nor notation in a temporarily open scope of - arguments, has been found, notations in those closed scopes which - have a delimiter are considered, giving priority to the most - recently defined (or imported) ones. The corresponding delimiter is - inserted, making the corresponding scope the most recent explicitly - open scope for all subterms of the current term. As an exception to - the insertion of the corresponding delimiter, when an expression is - statically known to be in a position expecting a type and the - notation is from scope ``type_scope``, and the latter is closed, the - delimiter is not inserted. This is because expressions statically - known to be in a position expecting a type are by default - interpreted with `type_scope` temporarily activated. Expressions - statically known to be in a position expecting a type typically - include being on the right-hand side of `:`, `<:`, `<<:` and after - the comma in a `forall` expression. - -- As a refinement of the previous rule, in the case of applied global - references, notations in a non-opened scope with delimiter - specifically defined for this applied global reference take priority - over notations in a non-opened scope with delimiter for generic - applications. For instance, in the presence of ``Notation "f ( x - )" := (f x) (at level 10, format "f ( x )") : app_scope`` and - ``Notation "x '.+1'" := (S x) (at level 10, format "x '.+1'") : - mynat_scope.`` and both of ``app_scope`` and ``mynat_scope`` being - bound to a delimiter *and* both not opened, the latter, more - specific notation will always take precedence over the first, more - generic one. - -- A scope can be closed by using :cmd:`Close Scope` and its delimiter - removed by using :cmd:`Undelimit Scope`. To remove automatic - temporary opening of scopes for arguments of a constant, use - :ref:`Arguments <ArgumentScopes>`. - .. _Abbreviations: Abbreviations diff --git a/interp/constrextern.ml b/interp/constrextern.ml index 717c476526..e5bf52571c 100644 --- a/interp/constrextern.ml +++ b/interp/constrextern.ml @@ -110,13 +110,13 @@ let deactivate_notation nr = (* shouldn't we check wether it is well defined? *) inactive_notations_table := IRuleSet.add nr !inactive_notations_table | NotationRule (scopt, ntn) -> - if not (exists_notation_interpretation_in_scope scopt ntn) then - user_err ~hdr:"Notation" + match availability_of_notation (scopt, ntn) (scopt, []) with + | None -> user_err ~hdr:"Notation" (pr_notation ntn ++ spc () ++ str "does not exist" ++ (match scopt with | None -> spc () ++ str "in the empty scope." | Some _ -> show_scope scopt ++ str ".")) - else + | Some _ -> if IRuleSet.mem nr !inactive_notations_table then Feedback.msg_warning (str "Notation" ++ spc () ++ pr_notation ntn ++ spc () @@ -263,11 +263,6 @@ let rec insert_pat_coercion ?loc l c = match l with | [] -> c | ntn::l -> CAst.make ?loc @@ CPatNotation (ntn,([insert_pat_coercion ?loc l c],[]),[]) -let add_lonely keyrule seen = - match keyrule with - | NotationRule (None,ntn) -> ntn::seen - | SynDefRule _ | NotationRule (Some _,_) -> seen - (**********************************************************************) (* conversion of references *) @@ -391,8 +386,8 @@ let rec extern_cases_pattern_in_scope (custom,scopes as allscopes) vars pat = with No_match -> try if !Flags.in_debugger || !Flags.raw_print || !print_no_symbol then raise No_match; - extern_notation_pattern allscopes [] vars pat - (uninterp_cases_pattern_notations scopes pat) + extern_notation_pattern allscopes vars pat + (uninterp_cases_pattern_notations pat) with No_match -> let loc = pat.CAst.loc in match DAst.get pat with @@ -445,15 +440,18 @@ let rec extern_cases_pattern_in_scope (custom,scopes as allscopes) vars pat = insert_pat_coercion coercion pat and apply_notation_to_pattern ?loc gr ((subst,substlist),(nb_to_drop,more_args)) - (custom, (tmp_scope, scopes) as allscopes) lonely_seen vars = + (custom, (tmp_scope, scopes) as allscopes) vars = function - | NotationRule (sc,ntn),key,need_delim -> + | NotationRule (sc,ntn) -> begin match availability_of_entry_coercion custom (fst ntn) with | None -> raise No_match | Some coercion -> - let key = if need_delim || List.mem ntn lonely_seen then key else None in - let scopt = match key with Some _ -> sc | _ -> None in + match availability_of_notation (sc,ntn) (tmp_scope,scopes) with + (* Uninterpretation is not allowed in current context *) + | None -> raise No_match + (* Uninterpretation is allowed in current context *) + | Some (scopt,key) -> let scopes' = Option.List.cons scopt scopes in let l = List.map (fun (c,(subentry,(scopt,scl))) -> @@ -475,8 +473,7 @@ and apply_notation_to_pattern ?loc gr ((subst,substlist),(nb_to_drop,more_args)) (insert_pat_delimiters ?loc (make_pat_notation ?loc ntn (l,ll) l2') key) end - | SynDefRule kn,key,need_delim -> - assert (key = None && need_delim = false); + | SynDefRule kn -> match availability_of_entry_coercion custom InConstrEntrySomeLevel with | None -> raise No_match | Some coercion -> @@ -494,9 +491,9 @@ and apply_notation_to_pattern ?loc gr ((subst,substlist),(nb_to_drop,more_args)) in assert (List.is_empty substlist); insert_pat_coercion ?loc coercion (mkPat ?loc qid (List.rev_append l1 l2')) -and extern_notation_pattern allscopes lonely_seen vars t = function +and extern_notation_pattern allscopes vars t = function | [] -> raise No_match - | (keyrule,pat,n as _rule,key,need_delim)::rules -> + | (keyrule,pat,n as _rule)::rules -> try if is_inactive_rule keyrule then raise No_match; let loc = t.loc in @@ -504,27 +501,22 @@ and extern_notation_pattern allscopes lonely_seen vars t = function | PatCstr (cstr,args,na) -> let t = if na = Anonymous then t else DAst.make ?loc (PatCstr (cstr,args,Anonymous)) in let p = apply_notation_to_pattern ?loc (ConstructRef cstr) - (match_notation_constr_cases_pattern t pat) allscopes lonely_seen vars - (keyrule,key,need_delim) in + (match_notation_constr_cases_pattern t pat) allscopes vars keyrule in insert_pat_alias ?loc p na | PatVar Anonymous -> CAst.make ?loc @@ CPatAtom None | PatVar (Name id) -> CAst.make ?loc @@ CPatAtom (Some (qualid_of_ident ?loc id)) with - No_match -> - let lonely_seen = add_lonely keyrule lonely_seen in - extern_notation_pattern allscopes lonely_seen vars t rules + No_match -> extern_notation_pattern allscopes vars t rules -let rec extern_notation_ind_pattern allscopes lonely_seen vars ind args = function +let rec extern_notation_ind_pattern allscopes vars ind args = function | [] -> raise No_match - | (keyrule,pat,n as _rule,key,need_delim)::rules -> + | (keyrule,pat,n as _rule)::rules -> try if is_inactive_rule keyrule then raise No_match; apply_notation_to_pattern (IndRef ind) - (match_notation_constr_ind_pattern ind args pat) allscopes lonely_seen vars (keyrule,key,need_delim) + (match_notation_constr_ind_pattern ind args pat) allscopes vars keyrule with - No_match -> - let lonely_seen = add_lonely keyrule lonely_seen in - extern_notation_ind_pattern allscopes lonely_seen vars ind args rules + No_match -> extern_notation_ind_pattern allscopes vars ind args rules let extern_ind_pattern_in_scope (custom,scopes as allscopes) vars ind args = (* pboutill: There are letins in pat which is incompatible with notations and @@ -536,8 +528,8 @@ let extern_ind_pattern_in_scope (custom,scopes as allscopes) vars ind args = else try if !Flags.raw_print || !print_no_symbol then raise No_match; - extern_notation_ind_pattern allscopes [] vars ind args - (uninterp_ind_pattern_notations scopes ind) + extern_notation_ind_pattern allscopes vars ind args + (uninterp_ind_pattern_notations ind) with No_match -> let c = extern_reference vars (IndRef ind) in let args = List.map (extern_cases_pattern_in_scope allscopes vars) args in @@ -781,32 +773,32 @@ let extern_ref vars ref us = let extern_var ?loc id = CRef (qualid_of_ident ?loc id,None) -let rec extern inctx (custom,scopes as allscopes) vars r = +let rec extern inctx scopes vars r = let r' = remove_coercions inctx r in try if !Flags.raw_print || !print_no_symbol then raise No_match; - extern_optimal (extern_possible_prim_token allscopes) r r' + extern_optimal (extern_possible_prim_token scopes) r r' with No_match -> try let r'' = flatten_application r' in if !Flags.raw_print || !print_no_symbol then raise No_match; extern_optimal - (fun r -> extern_notation allscopes [] vars r (uninterp_notations scopes r)) + (fun r -> extern_notation scopes vars r (uninterp_notations r)) r r'' with No_match -> let loc = r'.CAst.loc in match DAst.get r' with - | GRef (ref,us) when entry_has_global custom -> CAst.make ?loc (extern_ref vars ref us) + | GRef (ref,us) when entry_has_global (fst scopes) -> CAst.make ?loc (extern_ref vars ref us) - | GVar id when entry_has_ident custom -> CAst.make ?loc (extern_var ?loc id) + | GVar id when entry_has_ident (fst scopes) -> CAst.make ?loc (extern_var ?loc id) | c -> - match availability_of_entry_coercion custom InConstrEntrySomeLevel with + match availability_of_entry_coercion (fst scopes) InConstrEntrySomeLevel with | None -> raise No_match | Some coercion -> - let scopes = (InConstrEntrySomeLevel, scopes) in + let scopes = (InConstrEntrySomeLevel, snd scopes) in let c = match c with (* The remaining cases are only for the constr entry *) @@ -818,7 +810,7 @@ let rec extern inctx (custom,scopes as allscopes) vars r = | GEvar (n,[]) when !print_meta_as_hole -> CHole (None, IntroAnonymous, None) | GEvar (n,l) -> - extern_evar n (List.map (on_snd (extern false allscopes vars)) l) + extern_evar n (List.map (on_snd (extern false scopes vars)) l) | GPatVar kind -> if !print_meta_as_hole then CHole (None, IntroAnonymous, None) else @@ -1081,9 +1073,9 @@ and extern_eqn inctx scopes vars {CAst.loc;v=(ids,pll,c)} = let pll = List.map (List.map (extern_cases_pattern_in_scope scopes vars)) pll in make ?loc (pll,extern inctx scopes vars c) -and extern_notation (custom,scopes as allscopes) lonely_seen vars t = function +and extern_notation (custom,scopes as allscopes) vars t = function | [] -> raise No_match - | (keyrule,pat,n as _rule,key,need_delim)::rules -> + | (keyrule,pat,n as _rule)::rules -> let loc = Glob_ops.loc_of_glob_constr t in try if is_inactive_rule keyrule then raise No_match; @@ -1131,8 +1123,11 @@ and extern_notation (custom,scopes as allscopes) lonely_seen vars t = function (match availability_of_entry_coercion custom (fst ntn) with | None -> raise No_match | Some coercion -> - let key = if need_delim || List.mem ntn lonely_seen then key else None in - let scopt = match key with Some _ -> sc | None -> None in + match availability_of_notation (sc,ntn) scopes with + (* Uninterpretation is not allowed in current context *) + | None -> raise No_match + (* Uninterpretation is allowed in current context *) + | Some (scopt,key) -> let scopes' = Option.List.cons scopt (snd scopes) in let l = List.map (fun (c,(subentry,(scopt,scl))) -> @@ -1168,9 +1163,7 @@ and extern_notation (custom,scopes as allscopes) lonely_seen vars t = function let args = extern_args (extern true) vars args in CAst.make ?loc @@ explicitize false argsimpls (None,e) args with - No_match -> - let lonely_seen = add_lonely keyrule lonely_seen in - extern_notation allscopes lonely_seen vars t rules + No_match -> extern_notation allscopes vars t rules let extern_glob_constr vars c = extern false (InConstrEntrySomeLevel,(None,[])) vars c diff --git a/interp/notation.ml b/interp/notation.ml index 9e338e7df9..a7bac96d31 100644 --- a/interp/notation.ml +++ b/interp/notation.ml @@ -21,7 +21,6 @@ open Notation_term open Glob_term open Glob_ops open Context.Named.Declaration -open Classops (*i*) @@ -157,8 +156,6 @@ let scope_eq s1 s2 = match s1, s2 with | Scope _, SingleNotation _ | SingleNotation _, Scope _ -> false -(* Scopes for interpretation *) - let scope_stack = ref [] let current_scopes () = !scope_stack @@ -168,91 +165,14 @@ let scope_is_open_in_scopes sc l = let scope_is_open sc = scope_is_open_in_scopes sc (!scope_stack) -(* Uninterpretation tables *) - -type interp_rule = - | NotationRule of scope_name option * notation - | SynDefRule of KerName.t - -type scoped_notation_rule_core = scope_name * notation * interpretation * int option -type notation_rule_core = interp_rule * interpretation * int option -type notation_rule = notation_rule_core * delimiters option * bool - -(* Scopes for uninterpretation: includes abbreviations (i.e. syntactic definitions) and *) - -type uninterp_scope_elem = - | UninterpScope of scope_name - | UninterpSingle of notation_rule_core - -let uninterp_scope_eq_weak s1 s2 = match s1, s2 with -| UninterpScope s1, UninterpScope s2 -> String.equal s1 s2 -| UninterpSingle s1, UninterpSingle s2 -> false -| (UninterpSingle _ | UninterpScope _), _ -> false - -module ScopeOrd = - struct - type t = scope_name option - let compare = Pervasives.compare - end - -module ScopeMap = CMap.Make(ScopeOrd) - -let uninterp_scope_stack = ref [] - -let push_uninterp_scope sc scopes = UninterpScope sc :: scopes - -let push_uninterp_scopes = List.fold_right push_uninterp_scope - -(**********************************************************************) -(* Mapping classes to scopes *) - -type scope_class = cl_typ - -let scope_class_compare : scope_class -> scope_class -> int = - cl_typ_ord - -let compute_scope_class sigma t = - let (cl,_,_) = find_class_type sigma t in - cl - -module ScopeClassOrd = -struct - type t = scope_class - let compare = scope_class_compare -end - -module ScopeClassMap = Map.Make(ScopeClassOrd) - -let initial_scope_class_map : scope_name ScopeClassMap.t = - ScopeClassMap.empty - -let scope_class_map = ref initial_scope_class_map - -let declare_scope_class sc cl = - scope_class_map := ScopeClassMap.add cl sc !scope_class_map - -let find_scope_class cl = - ScopeClassMap.find cl !scope_class_map - -let find_scope_class_opt = function - | None -> None - | Some cl -> try Some (find_scope_class cl) with Not_found -> None - -let current_type_scope_name () = - find_scope_class_opt (Some CL_SORT) - (* TODO: push nat_scope, z_scope, ... in scopes summary *) (* Exportation of scopes *) let open_scope i (_,(local,op,sc)) = - if Int.equal i 1 then begin + if Int.equal i 1 then scope_stack := - if op then Scope sc :: !scope_stack - else List.except scope_eq (Scope sc) !scope_stack; - uninterp_scope_stack := - if op then UninterpScope sc :: !uninterp_scope_stack - else List.except uninterp_scope_eq_weak (UninterpScope sc) !uninterp_scope_stack - end + if op then sc :: !scope_stack + else List.except scope_eq sc !scope_stack let cache_scope o = open_scope 1 o @@ -267,7 +187,7 @@ let discharge_scope (_,(local,_,_ as o)) = let classify_scope (local,_,_ as o) = if local then Dispose else Substitute o -let inScope : bool * bool * scope_name -> obj = +let inScope : bool * bool * scope_elem -> obj = declare_object {(default_object "SCOPE") with cache_function = cache_scope; open_function = open_scope; @@ -276,7 +196,7 @@ let inScope : bool * bool * scope_name -> obj = classify_function = classify_scope } let open_close_scope (local,opening,sc) = - Lib.add_anonymous_leaf (inScope (local,opening,normalize_scope sc)) + Lib.add_anonymous_leaf (inScope (local,opening,Scope (normalize_scope sc))) let empty_scope_stack = [] @@ -284,20 +204,9 @@ let push_scope sc scopes = Scope sc :: scopes let push_scopes = List.fold_right push_scope -let make_type_scope_soft tmp_scope = - if Option.equal String.equal tmp_scope (current_type_scope_name ()) then - true, None - else - false, tmp_scope - let make_current_scopes (tmp_scope,scopes) = Option.fold_right push_scope tmp_scope (push_scopes scopes !scope_stack) -let make_current_uninterp_scopes (tmp_scope,scopes) = - let istyp,tmp_scope = make_type_scope_soft tmp_scope in - istyp,Option.fold_right push_uninterp_scope tmp_scope - (push_uninterp_scopes scopes !uninterp_scope_stack) - (**********************************************************************) (* Delimiters *) @@ -341,80 +250,40 @@ let find_delimiters_scope ?loc key = user_err ?loc ~hdr:"find_delimiters" (str "Unknown scope delimiting key " ++ str key ++ str ".") +(* Uninterpretation tables *) + +type interp_rule = + | NotationRule of scope_name option * notation + | SynDefRule of KerName.t + (* We define keys for glob_constr and aconstr to split the syntax entries according to the key of the pattern (adapted from Chet Murthy by HH) *) type key = | RefKey of GlobRef.t - | LambdaKey - | ProdKey | Oth let key_compare k1 k2 = match k1, k2 with | RefKey gr1, RefKey gr2 -> GlobRef.Ordered.compare gr1 gr2 -| RefKey _, _ -> -1 -| _, RefKey _ -> 1 -| k1, k2 -> Pervasives.compare k1 k2 +| RefKey _, Oth -> -1 +| Oth, RefKey _ -> 1 +| Oth, Oth -> 0 module KeyOrd = struct type t = key let compare = key_compare end module KeyMap = Map.Make(KeyOrd) -let keymap_add key sc interp (scope_map,global_map) = - (* Adding to scope keymap for printing based on open scopes *) - let oldkeymap = try ScopeMap.find sc scope_map with Not_found -> KeyMap.empty in - let oldscmap = try KeyMap.find key oldkeymap with Not_found -> [] in - let newscmap = KeyMap.add key (interp :: oldscmap) oldkeymap in - let scope_map = ScopeMap.add sc newscmap scope_map in - (* Adding to global keymap of scoped notations in case the scope is not open *) - let global_map = match interp with - | NotationRule (Some sc,ntn), interp, c -> - let oldglobalkeymap = try KeyMap.find key global_map with Not_found -> [] in - KeyMap.add key ((sc,ntn,interp,c) :: oldglobalkeymap) global_map - | (NotationRule (None,_) | SynDefRule _), _, _ -> global_map in - (scope_map, global_map) - -let keymap_extract istype keys sc map = - let keymap = - try ScopeMap.find (Some sc) map - with Not_found -> KeyMap.empty in - let delim = - if istype && Option.equal String.equal (Some sc) (current_type_scope_name ()) then - (* A type is re-interpreted with type_scope on top, so never need a delimiter *) - None - else - (* Pass the delimiter so that it can be used if ever the notation is masked *) - (String.Map.find sc !scope_map).delimiters in - let add_scope rule = (rule,delim,false) in - List.map_append (fun key -> try List.map add_scope (KeyMap.find key keymap) with Not_found -> []) keys - -let find_with_delimiters istype = function - | None -> - None - | Some _ as scope when istype && Option.equal String.equal scope (current_type_scope_name ()) -> - (* This is in case type_scope (which by default is open in the - initial state) has been explicitly closed *) - Some None - | Some scope -> - match (String.Map.find scope !scope_map).delimiters with - | Some key -> Some (Some key) - | None -> None +type notation_rule = interp_rule * interpretation * int option -let rec keymap_extract_remainder istype scope_seen = function - | [] -> [] - | (sc,ntn,interp,c) :: l -> - if String.Set.mem sc scope_seen then keymap_extract_remainder istype scope_seen l - else - match find_with_delimiters istype (Some sc) with - | None -> keymap_extract_remainder istype scope_seen l - | Some delim -> - let rule = (NotationRule (Some sc, ntn), interp, c) in - (rule,delim,true) :: keymap_extract_remainder istype scope_seen l +let keymap_add key interp map = + let old = try KeyMap.find key map with Not_found -> [] in + KeyMap.add key (interp :: old) map + +let keymap_find key map = + try KeyMap.find key map + with Not_found -> [] (* Scopes table : interpretation -> scope_name *) -let notations_key_table = - ref ((ScopeMap.empty, KeyMap.empty) : - notation_rule_core list KeyMap.t ScopeMap.t * - scoped_notation_rule_core list KeyMap.t) +let notations_key_table = ref (KeyMap.empty : notation_rule list KeyMap.t) let glob_prim_constr_key c = match DAst.get c with | GRef (ref, _) -> Some (canonical_gr ref) @@ -426,14 +295,12 @@ let glob_prim_constr_key c = match DAst.get c with | _ -> None let glob_constr_keys c = match DAst.get c with - | GRef (ref,_) -> [RefKey (canonical_gr ref)] | GApp (c, _) -> begin match DAst.get c with | GRef (ref, _) -> [RefKey (canonical_gr ref); Oth] | _ -> [Oth] end - | GLambda _ -> [LambdaKey] - | GProd _ -> [ProdKey] + | GRef (ref,_) -> [RefKey (canonical_gr ref)] | _ -> [Oth] let cases_pattern_key c = match DAst.get c with @@ -447,8 +314,6 @@ let notation_constr_key = function (* Rem: NApp(NRef ref,[]) stands for @ref *) RefKey (canonical_gr ref), Some (List.length args) | NRef ref -> RefKey(canonical_gr ref), None | NApp (_,args) -> Oth, Some (List.length args) - | NLambda _ | NBinderList (_,_,NLambda _,_,_) | NList (_,_,NLambda _,_,_) -> LambdaKey, None - | NProd _ | NBinderList (_,_,NProd _,_,_) | NList (_,_,NProd _,_,_) -> ProdKey, None | _ -> Oth, None (**********************************************************************) @@ -1190,31 +1055,37 @@ let check_required_module ?loc sc (sp,d) = (* Look if some notation or numeral printer in [scope] can be used in the scope stack [scopes], and if yes, using delimiters or not *) -let rec find_without_delimiters find (istype,ntn_scope,ntn as ntndata) = function - | UninterpScope scope :: scopes -> +let find_with_delimiters = function + | None -> None + | Some scope -> + match (String.Map.find scope !scope_map).delimiters with + | Some key -> Some (Some scope, Some key) + | None -> None + +let rec find_without_delimiters find (ntn_scope,ntn) = function + | Scope scope :: scopes -> (* Is the expected ntn/numpr attached to the most recently open scope? *) begin match ntn_scope with | Some scope' when String.equal scope scope' -> - Some None + Some (None,None) | _ -> (* If the most recently open scope has a notation/numeral printer but not the expected one then we need delimiters *) if find scope then - find_with_delimiters istype ntn_scope + find_with_delimiters ntn_scope else - find_without_delimiters find ntndata scopes + find_without_delimiters find (ntn_scope,ntn) scopes end - | UninterpSingle (NotationRule (_,ntn'),_,_) :: scopes -> + | SingleNotation ntn' :: scopes -> begin match ntn_scope, ntn with | None, Some ntn when notation_eq ntn ntn' -> - Some None + Some (None, None) | _ -> - find_without_delimiters find ntndata scopes + find_without_delimiters find (ntn_scope,ntn) scopes end - | UninterpSingle (SynDefRule _,_,_) :: scopes -> find_without_delimiters find ntndata scopes | [] -> (* Can we switch to [scope]? Yes if it has defined delimiters *) - find_with_delimiters istype ntn_scope + find_with_delimiters ntn_scope (* The mapping between notations and their interpretation *) @@ -1247,19 +1118,9 @@ let declare_notation_interpretation ntn scopt pat df ~onlyprint = | Some _ -> () end -let scope_of_rule = function - | NotationRule (None,_) | SynDefRule _ -> None - | NotationRule (Some sc as sco,_) -> sco - -let uninterp_scope_to_add pat n = function - | NotationRule (None,_) | SynDefRule _ as rule -> Some (UninterpSingle (rule,pat,n)) - | NotationRule (Some sc,_) -> None - let declare_uninterpretation rule (metas,c as pat) = let (key,n) = notation_constr_key c in - let sc = scope_of_rule rule in - notations_key_table := keymap_add key sc (rule,pat,n) !notations_key_table; - uninterp_scope_stack := Option.List.cons (uninterp_scope_to_add pat n rule) !uninterp_scope_stack + notations_key_table := keymap_add key (rule,pat,n) !notations_key_table let rec find_interpretation ntn find = function | [] -> raise Not_found @@ -1338,29 +1199,20 @@ let interp_notation ?loc ntn local_scopes = user_err ?loc (str "Unknown interpretation for notation " ++ pr_notation ntn ++ str ".") -let extract_notations (istype,scopes) keys = - if keys == [] then [] (* shortcut *) else - let scope_map, global_map = !notations_key_table in - let rec aux scopes seen = - match scopes with - | UninterpScope sc :: scopes -> keymap_extract istype keys sc scope_map @ aux scopes (String.Set.add sc seen) - | UninterpSingle rule :: scopes -> (rule,None,false) :: aux scopes seen - | [] -> - let find key = try KeyMap.find key global_map with Not_found -> [] in - keymap_extract_remainder istype seen (List.flatten (List.map find keys)) - in aux scopes String.Set.empty +let uninterp_notations c = + List.map_append (fun key -> keymap_find key !notations_key_table) + (glob_constr_keys c) -let uninterp_notations scopes c = - let scopes = make_current_uninterp_scopes scopes in - extract_notations scopes (glob_constr_keys c) +let uninterp_cases_pattern_notations c = + keymap_find (cases_pattern_key c) !notations_key_table -let uninterp_cases_pattern_notations scopes c = - let scopes = make_current_uninterp_scopes scopes in - extract_notations scopes [cases_pattern_key c] +let uninterp_ind_pattern_notations ind = + keymap_find (RefKey (canonical_gr (IndRef ind))) !notations_key_table -let uninterp_ind_pattern_notations scopes ind = - let scopes = make_current_uninterp_scopes scopes in - extract_notations scopes [RefKey (canonical_gr (IndRef ind))] +let availability_of_notation (ntn_scope,ntn) scopes = + let f scope = + NotationMap.mem ntn (String.Map.find scope !scope_map).notations in + find_without_delimiters f (ntn_scope,Some ntn) (make_current_scopes scopes) (* We support coercions from a custom entry at some level to an entry at some level (possibly the same), and from and to the constr entry. E.g.: @@ -1517,11 +1369,13 @@ let availability_of_prim_token n printer_scope local_scopes = | _ -> false with Not_found -> false in - let istype,scopes = make_current_uninterp_scopes local_scopes in - find_without_delimiters f (istype,Some printer_scope,None) scopes + let scopes = make_current_scopes local_scopes in + Option.map snd (find_without_delimiters f (Some printer_scope,None) scopes) (* Miscellaneous *) +let pair_eq f g (x1, y1) (x2, y2) = f x1 x2 && g y1 y2 + let notation_binder_source_eq s1 s2 = match s1, s2 with | NtnParsedAsIdent, NtnParsedAsIdent -> true | NtnParsedAsPattern b1, NtnParsedAsPattern b2 -> b1 = b2 @@ -1535,10 +1389,9 @@ let ntpe_eq t1 t2 = match t1, t2 with | NtnTypeBinderList, NtnTypeBinderList -> true | (NtnTypeConstr | NtnTypeBinder _ | NtnTypeConstrList | NtnTypeBinderList), _ -> false -let var_attributes_eq (_, ((entry1, (tmpsc1, scl1)), tp1)) (_, ((entry2, (tmpsc2, scl2)), tp2)) = +let var_attributes_eq (_, ((entry1, sc1), tp1)) (_, ((entry2, sc2), tp2)) = notation_entry_level_eq entry1 entry2 && - Option.equal String.equal tmpsc1 tmpsc2 && - List.equal String.equal scl1 scl2 && + pair_eq (Option.equal String.equal) (List.equal String.equal) sc1 sc2 && ntpe_eq tp1 tp2 let interpretation_eq (vars1, t1) (vars2, t2) = @@ -1553,17 +1406,46 @@ let exists_notation_in_scope scopt ntn onlyprint r = interpretation_eq n.not_interp r with Not_found -> false -let exists_notation_interpretation_in_scope scopt ntn = - let scope = match scopt with Some s -> s | None -> default_scope in - try - let sc = String.Map.find scope !scope_map in - let _ = NotationMap.find ntn sc.notations in - true - with Not_found -> false - let isNVar_or_NHole = function NVar _ | NHole _ -> true | _ -> false (**********************************************************************) +(* Mapping classes to scopes *) + +open Classops + +type scope_class = cl_typ + +let scope_class_compare : scope_class -> scope_class -> int = + cl_typ_ord + +let compute_scope_class sigma t = + let (cl,_,_) = find_class_type sigma t in + cl + +module ScopeClassOrd = +struct + type t = scope_class + let compare = scope_class_compare +end + +module ScopeClassMap = Map.Make(ScopeClassOrd) + +let initial_scope_class_map : scope_name ScopeClassMap.t = + ScopeClassMap.empty + +let scope_class_map = ref initial_scope_class_map + +let declare_scope_class sc cl = + scope_class_map := ScopeClassMap.add cl sc !scope_class_map + +let find_scope_class cl = + ScopeClassMap.find cl !scope_class_map + +let find_scope_class_opt = function + | None -> None + | Some cl -> try Some (find_scope_class cl) with Not_found -> None + +(**********************************************************************) (* Special scopes associated to arguments of a global reference *) let rec compute_arguments_classes sigma t = @@ -1583,6 +1465,9 @@ let compute_arguments_scope sigma t = fst (compute_arguments_scope_full sigma t) let compute_type_scope sigma t = find_scope_class_opt (try Some (compute_scope_class sigma t) with Not_found -> None) +let current_type_scope_name () = + find_scope_class_opt (Some CL_SORT) + let scope_class_of_class (x : cl_typ) : scope_class = x @@ -1939,7 +1824,7 @@ let locate_notation prglob ntn scope = str "Notation" ++ fnl () ++ prlist_with_sep fnl (fun (ntn,l) -> let scope = find_default ntn scopes in - prlist_with_sep fnl + prlist (fun (sc,r,(_,df)) -> hov 0 ( pr_notation_info prglob df r ++ @@ -2002,18 +1887,17 @@ let pr_visibility prglob = function (* Synchronisation with reset *) let freeze ~marshallable = - (!scope_map, !scope_stack, !uninterp_scope_stack, !arguments_scope, + (!scope_map, !scope_stack, !arguments_scope, !delimiters_map, !notations_key_table, !scope_class_map, !prim_token_interp_infos, !prim_token_uninterp_infos, !entry_coercion_map, !entry_has_global_map, !entry_has_ident_map) -let unfreeze (scm,scs,uscs,asc,dlm,fkm,clsc,ptii,ptui,coe,globs,ids) = +let unfreeze (scm,scs,asc,dlm,fkm,clsc,ptii,ptui,coe,globs,ids) = scope_map := scm; scope_stack := scs; - uninterp_scope_stack := uscs; - arguments_scope := asc; delimiters_map := dlm; + arguments_scope := asc; notations_key_table := fkm; scope_class_map := clsc; prim_token_interp_infos := ptii; @@ -2024,9 +1908,8 @@ let unfreeze (scm,scs,uscs,asc,dlm,fkm,clsc,ptii,ptui,coe,globs,ids) = let init () = init_scope_map (); - uninterp_scope_stack := []; delimiters_map := String.Map.empty; - notations_key_table := (ScopeMap.empty,KeyMap.empty); + notations_key_table := KeyMap.empty; scope_class_map := initial_scope_class_map; prim_token_interp_infos := String.Map.empty; prim_token_uninterp_infos := GlobRef.Map.empty diff --git a/interp/notation.mli b/interp/notation.mli index 017023c133..a67948a778 100644 --- a/interp/notation.mli +++ b/interp/notation.mli @@ -225,28 +225,18 @@ val declare_uninterpretation : interp_rule -> interpretation -> unit val interp_notation : ?loc:Loc.t -> notation -> subscopes -> interpretation * (notation_location * scope_name option) -type notation_rule_core = - interp_rule (* kind of notation *) - * interpretation (* pattern associated to the notation *) - * int option (* number of expected arguments *) - -type notation_rule = - notation_rule_core - * delimiters option (* delimiter to possibly add *) - * bool (* true if the delimiter is mandatory *) +type notation_rule = interp_rule * interpretation * int option (** Return the possible notations for a given term *) -val uninterp_notations : subscopes -> 'a glob_constr_g -> notation_rule list -val uninterp_cases_pattern_notations : subscopes -> 'a cases_pattern_g -> notation_rule list -val uninterp_ind_pattern_notations : subscopes -> inductive -> notation_rule list +val uninterp_notations : 'a glob_constr_g -> notation_rule list +val uninterp_cases_pattern_notations : 'a cases_pattern_g -> notation_rule list +val uninterp_ind_pattern_notations : inductive -> notation_rule list -(* (** Test if a notation is available in the scopes context [scopes]; if available, the result is not None; the first argument is itself not None if a delimiters is needed *) val availability_of_notation : scope_name option * notation -> subscopes -> (scope_name option * delimiters option) option - *) (** {6 Miscellaneous} *) @@ -257,9 +247,6 @@ val interp_notation_as_global_reference : ?loc:Loc.t -> (GlobRef.t -> bool) -> val exists_notation_in_scope : scope_name option -> notation -> bool -> interpretation -> bool -(** Checks for already existing notations *) -val exists_notation_interpretation_in_scope : scope_name option -> notation -> bool - (** Declares and looks for scopes associated to arguments of a global ref *) val declare_arguments_scope : bool (** true=local *) -> GlobRef.t -> scope_name option list -> unit diff --git a/test-suite/output/Inductive.out b/test-suite/output/Inductive.out index 2ba02924c9..af202ea01c 100644 --- a/test-suite/output/Inductive.out +++ b/test-suite/output/Inductive.out @@ -1,6 +1,6 @@ The command has indeed failed with message: Last occurrence of "list'" must have "A" as 1st argument in - "A -> list' A -> list' (A * A)". + "A -> list' A -> list' (A * A)%type". Inductive foo (A : Type) (x : A) (y : A := x) : Prop := Foo : foo A x For foo: Argument scopes are [type_scope _] diff --git a/test-suite/output/Notations.out b/test-suite/output/Notations.out index bec4fc1579..94b86fc222 100644 --- a/test-suite/output/Notations.out +++ b/test-suite/output/Notations.out @@ -72,7 +72,7 @@ Nil : forall A : Type, list A NIL : list nat : list nat -(false && I 3)%bool /\ (I 6)%bool +(false && I 3)%bool /\ I 6 : Prop [|1, 2, 3; 4, 5, 6|] : Z * Z * Z * (Z * Z * Z) diff --git a/test-suite/output/Notations.v b/test-suite/output/Notations.v index 2ffc3b14e2..adab324cf0 100644 --- a/test-suite/output/Notations.v +++ b/test-suite/output/Notations.v @@ -30,7 +30,7 @@ Check (decomp (true,true) as t, u in (t,u)). Section A. -Notation "! A" := (forall _:nat, A) (at level 60) : type_scope. +Notation "! A" := (forall _:nat, A) (at level 60). Check ! (0=0). Check forall n, n=0. @@ -195,9 +195,9 @@ Open Scope nat_scope. Coercion is_true := fun b => b=true. Coercion of_nat n := match n with 0 => true | _ => false end. -Notation "'I' x" := (of_nat (S x) || true)%bool (at level 10) : bool_scope. +Notation "'I' x" := (of_nat (S x) || true)%bool (at level 10). -Check (false && I 3)%bool /\ (I 6)%bool. +Check (false && I 3)%bool /\ I 6. (**********************************************************************) (* Check notations with several recursive patterns *) diff --git a/test-suite/output/Notations2.v b/test-suite/output/Notations2.v index 923caedace..bcb2468792 100644 --- a/test-suite/output/Notations2.v +++ b/test-suite/output/Notations2.v @@ -71,7 +71,6 @@ Check let' f x y (a:=0) z (b:bool) := x+y+z+1 in f 0 1 2. (* Note: does not work for pattern *) Module A. Notation "f ( x )" := (f x) (at level 10, format "f ( x )"). -Open Scope nat_scope. Check fun f x => f x + S x. Open Scope list_scope. diff --git a/test-suite/output/Notations3.out b/test-suite/output/Notations3.out index 015dac2512..d32cf67e28 100644 --- a/test-suite/output/Notations3.out +++ b/test-suite/output/Notations3.out @@ -128,27 +128,25 @@ return (1, 2, 3, 4) : nat *(1.2) : nat -! '{{x, y}}, x + y = 0 +! '{{x, y}}, x.y = 0 : Prop exists x : nat, nat -> exists y : nat, - nat -> - exists '{{u, t}}, forall z1 : nat, z1 = 0 /\ x + y = 0 /\ u + t = 0 + nat -> exists '{{u, t}}, forall z1 : nat, z1 = 0 /\ x.y = 0 /\ u.t = 0 : Prop exists x : nat, nat -> exists y : nat, - nat -> - exists '{{z, t}}, forall z2 : nat, z2 = 0 /\ x + y = 0 /\ z + t = 0 + nat -> exists '{{z, t}}, forall z2 : nat, z2 = 0 /\ x.y = 0 /\ z.t = 0 : Prop -exists_true '{{x, y}} (u := 0) '{{z, t}}, x + y = 0 /\ z + t = 0 +exists_true '{{x, y}} (u := 0) '{{z, t}}, x.y = 0 /\ z.t = 0 : Prop exists_true (A : Type) (R : A -> A -> Prop) (_ : Reflexive R), (forall x : A, R x x) : Prop exists_true (x : nat) (A : Type) (R : A -> A -> Prop) -(_ : Reflexive R) (y : nat), x + y = 0 -> forall z : A, R z z +(_ : Reflexive R) (y : nat), x.y = 0 -> forall z : A, R z z : Prop {{{{True, nat -> True}}, nat -> True}} : Prop * Prop * Prop @@ -184,22 +182,22 @@ pair (prod nat (prod nat nat))) (prod (prod nat nat) nat) fun x : nat => if x is n .+ 1 then n else 1 : nat -> nat -{'{{x, y}} : nat * nat | x + y = 0} +{'{{x, y}} : nat * nat | x.y = 0} : Set exists2' {{x, y}}, x = 0 & y = 0 : Prop myexists2 x : nat * nat, let '{{y, z}} := x in y > z & let '{{y, z}} := x in z > y : Prop -fun '({{x, y}} as z) => x + y = 0 /\ z = z +fun '({{x, y}} as z) => x.y = 0 /\ z = z : nat * nat -> Prop -myexists ({{x, y}} as z), x + y = 0 /\ z = z +myexists ({{x, y}} as z), x.y = 0 /\ z = z : Prop -exists '({{x, y}} as z), x + y = 0 /\ z = z +exists '({{x, y}} as z), x.y = 0 /\ z = z : Prop -∀ '({{x, y}} as z), x + y = 0 /\ z = z +∀ '({{x, y}} as z), x.y = 0 /\ z = z : Prop -fun '({{{{x, y}}, true}} | {{{{x, y}}, false}}) => x + y +fun '({{{{x, y}}, true}} | {{{{x, y}}, false}}) => x.y : nat * nat * bool -> nat myexists ({{{{x, y}}, true}} | {{{{x, y}}, false}}), x > y : Prop @@ -211,17 +209,17 @@ fun p : nat => if p is S n then n else 0 : nat -> nat fun p : comparison => if p is Lt then 1 else 0 : comparison -> nat -fun S : nat => [S | S + S] +fun S : nat => [S | S.S] : nat -> nat * (nat -> nat) -fun N : nat => [N | N + 0] +fun N : nat => [N | N.0] : nat -> nat * (nat -> nat) -fun S : nat => [[S | S + S]] +fun S : nat => [[S | S.S]] : nat -> nat * (nat -> nat) {I : nat | I = I} : Set {'I : True | I = I} : Prop -{'{{x, y}} : nat * nat | x + y = 0} +{'{{x, y}} : nat * nat | x.y = 0} : Set exists2 '{{y, z}} : nat * nat, y > z & z > y : Prop @@ -254,13 +252,3 @@ myfoo01 tt : nat myfoo01 tt : nat -[{0; 0}] - : list (list nat) -[{1; 2; 3}; - {4; 5; 6}; - {7; 8; 9}] - : list (list nat) -amatch = mmatch 0 (with 0 => 1| 1 => 2 end) - : unit -alist = [0; 1; 2] - : list nat diff --git a/test-suite/output/Notations3.v b/test-suite/output/Notations3.v index 2caffad1d9..dcc8bd7165 100644 --- a/test-suite/output/Notations3.v +++ b/test-suite/output/Notations3.v @@ -59,7 +59,7 @@ Check fun f => CURRYINVLEFT (x:nat) (y:bool), f. (* Notations with variables bound both as a term and as a binder *) (* This is #4592 *) -Notation "{# x | P }" := (ex2 (fun y => x = y) (fun x => P)) : type_scope. +Notation "{# x | P }" := (ex2 (fun y => x = y) (fun x => P)). Check forall n:nat, {# n | 1 > n}. Parameter foo : forall {T}(x : T)(P : T -> Prop), Prop. @@ -183,13 +183,9 @@ Check letpair x [1] = {0}; return (1,2,3,4). (* Test spacing in #5569 *) -Section S1. -Variable plus : nat -> nat -> nat. -Infix "+" := plus. Notation "{ { xL | xR // xcut } }" := (xL+xR+xcut) (at level 0, xR at level 39, format "{ { xL | xR // xcut } }"). Check 1+1+1. -End S1. (* Test presence of notation variables in the recursive parts (introduced in dfdaf4de) *) Notation "!!! x .. y , b" := ((fun x => b), .. ((fun y => b), True) ..) (at level 200, x binder). @@ -197,12 +193,10 @@ Check !!! (x y:nat), True. (* Allow level for leftmost nonterminal when printing-only, BZ#5739 *) -Section S2. -Notation "* x" := (id x) (only printing, at level 15, format "* x") : nat_scope. -Notation "x . y" := (x + y) (only printing, at level 20, x at level 14, left associativity, format "x . y") : nat_scope. +Notation "* x" := (id x) (only printing, at level 15, format "* x"). +Notation "x . y" := (x + y) (only printing, at level 20, x at level 14, left associativity, format "x . y"). Check (((id 1) + 2) + 3). Check (id (1 + 2)). -End S2. (* Test contraction of "forall x, let 'pat := x in ..." into "forall 'pat, ..." *) (* for isolated "forall" (was not working already in 8.6) *) @@ -416,58 +410,3 @@ Check myfoo0 1 tt. (* was printing [myfoo0 1 HI], but should print [myfoo01 HI] Check myfoo01 tt. (* was printing [myfoo0 1 HI], but should print [myfoo01 HI] *) End Issue8126. - -(* Test printing of notations guided by scope *) - -Module A. - -Declare Scope line_scope. -Delimit Scope line_scope with line. -Declare Scope matx_scope. -Notation "{ }" := nil (format "{ }") : line_scope. -Notation "{ x }" := (cons x nil) : line_scope. -Notation "{ x ; y ; .. ; z }" := (cons x (cons y .. (cons z nil) ..)) : line_scope. -Notation "[ ]" := nil (format "[ ]") : matx_scope. -Notation "[ l ]" := (cons l%line nil) : matx_scope. -Notation "[ l ; l' ; .. ; l'' ]" := (cons l%line (cons l'%line .. (cons l''%line nil) ..)) - (format "[ '[v' l ; '/' l' ; '/' .. ; '/' l'' ']' ]") : matx_scope. - -Open Scope matx_scope. -Check [[0;0]]. -Check [[1;2;3];[4;5;6];[7;8;9]]. - -End A. - -(* Example by Beta Ziliani *) - -Require Import Lists.List. - -Module B. - -Import ListNotations. - -Declare Scope pattern_scope. -Delimit Scope pattern_scope with pattern. - -Declare Scope patterns_scope. -Delimit Scope patterns_scope with patterns. - -Notation "a => b" := (a, b) (at level 201) : pattern_scope. -Notation "'with' p1 | .. | pn 'end'" := - ((cons p1%pattern (.. (cons pn%pattern nil) ..))) - (at level 91, p1 at level 210, pn at level 210) : patterns_scope. - -Definition mymatch (n:nat) (l : list (nat * nat)) := tt. -Arguments mymatch _ _%patterns. -Notation "'mmatch' n ls" := (mymatch n ls) (at level 0). - -Close Scope patterns_scope. -Close Scope pattern_scope. - -Definition amatch := mmatch 0 with 0 => 1 | 1 => 2 end. -Print amatch. (* Good: amatch = mmatch 0 (with 0 => 1| 1 => 2 end) *) - -Definition alist := [0;1;2]. -Print alist. - -End B. diff --git a/test-suite/output/Notations4.out b/test-suite/output/Notations4.out index ca20575f1a..9d972a68f7 100644 --- a/test-suite/output/Notations4.out +++ b/test-suite/output/Notations4.out @@ -21,30 +21,6 @@ Let "x" e1 e2 : expr Let "x" e1 e2 : expr -fun x : nat => (# x)%nat - : nat -> nat -fun x : nat => ## x - : nat -> nat -fun x : nat => # x - : nat -> nat -fun x : nat => ### x - : nat -> nat -fun x : nat => ## x - : nat -> nat -fun x : nat => (x.-1)%pred - : nat -> nat -∀ a : nat, a = 0 - : Prop -((∀ a : nat, a = 0) -> True)%type - : Prop -# - : Prop -# -> True - : Prop -((∀ a : nat, a = 0) -> True)%type - : Prop -## - : Prop myAnd1 True True : Prop r 2 3 diff --git a/test-suite/output/Notations4.v b/test-suite/output/Notations4.v index 3311549013..81c64418cb 100644 --- a/test-suite/output/Notations4.v +++ b/test-suite/output/Notations4.v @@ -5,8 +5,8 @@ Module A. Declare Custom Entry myconstr. Notation "[ x ]" := x (x custom myconstr at level 6). -Notation "x + y" := (Nat.add x y) (in custom myconstr at level 5) : nat_scope. -Notation "x * y" := (Nat.mul x y) (in custom myconstr at level 4) : nat_scope. +Notation "x + y" := (Nat.add x y) (in custom myconstr at level 5). +Notation "x * y" := (Nat.mul x y) (in custom myconstr at level 4). Notation "< x >" := x (in custom myconstr at level 3, x constr at level 10). Check [ < 0 > + < 1 > * < 2 >]. @@ -95,76 +95,6 @@ Check (Let "x" e1 e2). End D. -(* Check fix of #8551: a delimiter should be inserted because the - lonely notation hides the scope nat_scope, even though the latter - is open *) - -Module E. - -Notation "# x" := (S x) (at level 20) : nat_scope. -Notation "# x" := (Some x). -Check fun x => (# x)%nat. - -End E. - -(* Other tests of precedence *) - -Module F. - -Notation "# x" := (S x) (at level 20) : nat_scope. -Notation "## x" := (S x) (at level 20). -Check fun x => S x. -Open Scope nat_scope. -Check fun x => S x. -Notation "### x" := (S x) (at level 20) : nat_scope. -Check fun x => S x. -Close Scope nat_scope. -Check fun x => S x. - -End F. - -(* Lower priority of generic application rules *) - -Module G. - -Declare Scope predecessor_scope. -Delimit Scope predecessor_scope with pred. -Declare Scope app_scope. -Delimit Scope app_scope with app. -Notation "x .-1" := (Nat.pred x) (at level 10, format "x .-1") : predecessor_scope. -Notation "f ( x )" := (f x) (at level 10, format "f ( x )") : app_scope. -Check fun x => pred x. - -End G. - -(* Checking arbitration between in the presence of a notation in type scope *) - -Module H. - -Notation "∀ x .. y , P" := (forall x, .. (forall y, P) ..) - (at level 200, x binder, y binder, right associativity, - format "'[ ' '[ ' ∀ x .. y ']' , '/' P ']'") : type_scope. -Check forall a, a = 0. - -Close Scope type_scope. -Check ((forall a, a = 0) -> True)%type. -Open Scope type_scope. - -Notation "#" := (forall a, a = 0). -Check #. -Check # -> True. - -Close Scope type_scope. -Check (# -> True)%type. -Open Scope type_scope. - -Declare Scope my_scope. -Notation "##" := (forall a, a = 0) : my_scope. -Open Scope my_scope. -Check ##. - -End H. - (* Fixing bugs reported by G. Gonthier in #9207 *) Module I. |