754 lines
26 KiB
OCaml
754 lines
26 KiB
OCaml
(* $Id$ *)
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open Tk
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open Jg_tk
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open Parsetree
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open Types
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open Typedtree
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open Location
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open Longident
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open Path
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open Env
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open Searchid
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(* auxiliary functions *)
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let (~) = Jg_memo.fast fun:Str.regexp
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let lines_to_chars n in:s =
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let l = String.length s in
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let rec ltc n :pos =
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if n = 1 or pos >= l then pos else
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if s.[pos] = '\n' then ltc (n-1) pos:(pos+1) else ltc n pos:(pos+1)
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in ltc n pos:0
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let in_loc loc :pos =
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pos >= loc.loc_start & pos < loc.loc_end
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let rec string_of_longident = function
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Lident s -> s
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| Ldot (id,s) -> string_of_longident id ^ "." ^ s
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| Lapply (id1, id2) ->
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string_of_longident id1 ^ "(" ^ string_of_longident id2 ^ ")"
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let string_of_path p = string_of_longident (Searchid.longident_of_path p)
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let parent_path = function
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Pdot (path, _, _) -> Some path
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| Pident _ | Papply _ -> None
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let ident_of_path :default = function
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Pident i -> i
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| Pdot (_, s, _) -> Ident.create s
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| Papply _ -> Ident.create default
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let rec head_id = function
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Pident id -> id
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| Pdot (path,_,_) -> head_id path
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| Papply (path,_) -> head_id path (* wrong, but ... *)
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let rec list_of_path = function
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Pident id -> [Ident.name id]
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| Pdot (path, s, _) -> list_of_path path @ [s]
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| Papply (path, _) -> list_of_path path (* wrong, but ... *)
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(* a simple wrapper *)
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class buffer :len = object
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val buffer = Buffer.create len
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method out :buf = Buffer.add_substring buffer buf
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method get = Buffer.contents buffer
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end
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(* Search in a signature *)
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type skind = [`Type|`Class|`Module|`Modtype]
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exception Found_sig of skind * Longident.t * Env.t
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let rec search_pos_type t :pos :env =
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if in_loc :pos t.ptyp_loc then
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begin (match t.ptyp_desc with
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Ptyp_any
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| Ptyp_var _ -> ()
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| Ptyp_variant(tl, _, _) ->
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List.iter tl
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fun:(fun (_,_,tl) -> List.iter tl fun:(search_pos_type :pos :env))
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| Ptyp_arrow (_, t1, t2) ->
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search_pos_type t1 :pos :env;
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search_pos_type t2 :pos :env
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| Ptyp_tuple tl ->
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List.iter tl fun:(search_pos_type :pos :env)
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| Ptyp_constr (lid, tl) ->
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List.iter tl fun:(search_pos_type :pos :env);
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raise (Found_sig (`Type, lid, env))
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| Ptyp_object fl ->
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List.iter fl fun:
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begin function
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| {pfield_desc = Pfield (_, ty)} -> search_pos_type ty :pos :env
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| _ -> ()
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end
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| Ptyp_class (lid, tl, _) ->
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List.iter tl fun:(search_pos_type :pos :env);
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raise (Found_sig (`Type, lid, env))
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| Ptyp_alias (t, _) -> search_pos_type :pos :env t);
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raise Not_found
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end
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let rec search_pos_class_type cl :pos :env =
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if in_loc cl.pcty_loc :pos then begin
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begin match cl.pcty_desc with
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Pcty_constr (lid, _) ->
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raise (Found_sig (`Class, lid, env))
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| Pcty_signature (_, cfl) ->
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List.iter cfl fun:
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begin function
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Pctf_inher cty -> search_pos_class_type cty :pos :env
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| Pctf_val (_, _, Some ty, loc) ->
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if in_loc loc :pos then search_pos_type ty :pos :env
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| Pctf_val _ -> ()
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| Pctf_virt (_, _, ty, loc) ->
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if in_loc loc :pos then search_pos_type ty :pos :env
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| Pctf_meth (_, _, ty, loc) ->
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if in_loc loc :pos then search_pos_type ty :pos :env
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| Pctf_cstr (ty1, ty2, loc) ->
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if in_loc loc :pos then begin
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search_pos_type ty1 :pos :env;
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search_pos_type ty2 :pos :env
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end
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end
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| Pcty_fun (_, ty, cty) ->
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search_pos_type ty :pos :env;
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search_pos_class_type cty :pos :env
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end;
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raise Not_found
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end
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let search_pos_type_decl td :pos :env =
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if in_loc :pos td.ptype_loc then begin
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begin match td.ptype_manifest with
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Some t -> search_pos_type t :pos :env
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| None -> ()
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end;
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begin match td.ptype_kind with
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Ptype_abstract -> ()
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| Ptype_variant dl ->
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List.iter dl
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fun:(fun (_, tl) -> List.iter tl fun:(search_pos_type :pos :env))
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| Ptype_record dl ->
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List.iter dl fun:(fun (_, _, t) -> search_pos_type t :pos :env)
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end;
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raise Not_found
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end
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let rec search_pos_signature l :pos :env =
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List.fold_left l acc:env fun:
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begin fun acc:env pt ->
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let env = match pt.psig_desc with
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Psig_open id ->
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let path, mt = lookup_module id env in
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begin match mt with
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Tmty_signature sign -> open_signature path sign env
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| _ -> env
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end
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| sign_item ->
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try add_signature (Typemod.transl_signature env [pt]) env
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with Typemod.Error _ | Typeclass.Error _
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| Typetexp.Error _ | Typedecl.Error _ -> env
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in
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if in_loc :pos pt.psig_loc then begin
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begin match pt.psig_desc with
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Psig_value (_, desc) -> search_pos_type desc.pval_type :pos :env
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| Psig_type l ->
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List.iter l fun:(fun (_,desc) -> search_pos_type_decl :pos desc :env)
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| Psig_exception (_, l) ->
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List.iter l fun:(search_pos_type :pos :env);
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raise (Found_sig (`Type, Lident "exn", env))
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| Psig_module (_, t) ->
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search_pos_module t :pos :env
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| Psig_modtype (_, Pmodtype_manifest t) ->
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search_pos_module t :pos :env
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| Psig_modtype _ -> ()
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| Psig_class l ->
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List.iter l
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fun:(fun ci -> search_pos_class_type ci.pci_expr :pos :env)
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| Psig_class_type l ->
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List.iter l
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fun:(fun ci -> search_pos_class_type ci.pci_expr :pos :env)
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(* The last cases should not happen in generated interfaces *)
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| Psig_open lid -> raise (Found_sig (`Module, lid, env))
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| Psig_include t -> search_pos_module t :pos :env
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end;
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raise Not_found
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end;
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env
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end
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and search_pos_module m :pos :env =
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if in_loc m.pmty_loc :pos then begin
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begin match m.pmty_desc with
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Pmty_ident lid -> raise (Found_sig (`Modtype, lid, env))
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| Pmty_signature sg -> let _ = search_pos_signature sg :pos :env in ()
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| Pmty_functor (_ , m1, m2) ->
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search_pos_module m1 :pos :env;
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search_pos_module m2 :pos :env
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| Pmty_with (m, l) ->
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search_pos_module m :pos :env;
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List.iter l fun:
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begin function
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_, Pwith_type t -> search_pos_type_decl t :pos :env
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| _ -> ()
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end
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end;
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raise Not_found
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end
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(* the module display machinery *)
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type module_widgets =
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{ mw_frame: Widget.frame Widget.widget;
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mw_detach: Widget.button Widget.widget;
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mw_edit: Widget.button Widget.widget;
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mw_intf: Widget.button Widget.widget }
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let shown_modules = Hashtbl.create 17
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let filter_modules () =
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Hashtbl.iter shown_modules fun:
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begin fun :key :data ->
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if not (Winfo.exists data.mw_frame) then
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Hashtbl.remove :key shown_modules
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end
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let add_shown_module path :widgets =
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Hashtbl.add shown_modules key:path data:widgets
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and find_shown_module path =
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filter_modules ();
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Hashtbl.find shown_modules key:path
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(* Viewing a signature *)
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(* Forward definitions of Viewer.view_defined and Editor.editor *)
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let view_defined_ref = ref (fun lid :env -> ())
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let editor_ref = ref (fun ?:file ?:pos ?:opendialog () -> ())
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let edit_source :file :path :sign =
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match sign with
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[item] ->
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let id, kind =
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match item with
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Tsig_value (id, _) -> id, Pvalue
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| Tsig_type (id, _) -> id, Ptype
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| Tsig_exception (id, _) -> id, Pconstructor
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| Tsig_module (id, _) -> id, Pmodule
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| Tsig_modtype (id, _) -> id, Pmodtype
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| Tsig_class (id, _) -> id, Pclass
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| Tsig_cltype (id, _) -> id, Pcltype
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in
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let prefix = List.tl (list_of_path path) and name = Ident.name id in
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let pos =
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try
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let chan = open_in file in
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if Filename.check_suffix file suff:".ml" then
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let parsed = Parse.implementation (Lexing.from_channel chan) in
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close_in chan;
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Searchid.search_structure parsed :name :kind :prefix
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else
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let parsed = Parse.interface (Lexing.from_channel chan) in
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close_in chan;
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Searchid.search_signature parsed :name :kind :prefix
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with _ -> 0
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in !editor_ref :file :pos ()
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| _ -> !editor_ref :file ()
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(* List of windows to destroy by Close All *)
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let top_widgets = ref []
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let rec view_signature ?:title ?:path ?(:env = !start_env) sign =
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let env =
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match path with None -> env
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| Some path -> Env.open_signature path sign env in
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let title =
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match title, path with Some title, _ -> title
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| None, Some path -> string_of_path path
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| None, None -> "Signature"
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in
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let tl, tw, finish =
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try match path with
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None -> raise Not_found
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| Some path ->
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let widgets =
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try find_shown_module path
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with Not_found ->
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view_module path :env;
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find_shown_module path
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in
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Button.configure widgets.mw_detach
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command:(fun () -> view_signature sign :title :env);
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pack [widgets.mw_detach] side:`Left;
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Pack.forget [widgets.mw_edit; widgets.mw_intf];
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List.iter2 [widgets.mw_edit; widgets.mw_intf] [".ml"; ".mli"] fun:
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begin fun button ext ->
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try
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let id = head_id path in
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let file =
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Misc.find_in_path !Config.load_path
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(String.uncapitalize (Ident.name id) ^ ext) in
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Button.configure button
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command:(fun () -> edit_source :file :path :sign);
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pack [button] side:`Left
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with Not_found -> ()
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end;
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let top = Winfo.toplevel widgets.mw_frame in
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if not (Winfo.ismapped top) then Wm.deiconify top;
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Focus.set top;
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List.iter fun:destroy (Winfo.children widgets.mw_frame);
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Jg_message.formatted :title on:widgets.mw_frame maxheight:15 ()
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with Not_found ->
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let tl, tw, finish = Jg_message.formatted :title maxheight:15 () in
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top_widgets := tl :: !top_widgets;
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tl, tw, finish
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in
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Format.set_max_boxes 100;
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Printtyp.signature sign;
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finish ();
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Lexical.init_tags tw;
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Lexical.tag tw;
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Text.configure tw state:`Disabled;
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let text = Jg_text.get_all tw in
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let pt =
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try Parse.interface (Lexing.from_string text)
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with Syntaxerr.Error e ->
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let l =
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match e with
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Syntaxerr.Unclosed(l,_,_,_) -> l
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| Syntaxerr.Other l -> l
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in
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Jg_text.tag_and_see tw start:(tpos l.loc_start)
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end:(tpos l.loc_end) tag:"error"; []
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| Lexer.Error (_, s, e) ->
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Jg_text.tag_and_see tw start:(tpos s) end:(tpos e) tag:"error"; []
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in
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Jg_bind.enter_focus tw;
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bind tw events:[`Modified([`Control], `KeyPressDetail"s")]
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action:(fun _ -> Jg_text.search_string tw);
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bind tw events:[`Modified([`Double], `ButtonPressDetail 1)]
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fields:[`MouseX;`MouseY] breakable:true
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action:(fun ev ->
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let `Linechar (l, c) =
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Text.index tw index:(`Atxy(ev.ev_MouseX,ev.ev_MouseY), []) in
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try try
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search_pos_signature pt pos:(lines_to_chars l in:text + c) :env;
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break ()
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with Found_sig (kind, lid, env) -> view_decl lid :kind :env
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with Not_found | Env.Error _ -> ());
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bind tw events:[`ButtonPressDetail 3] fields:[`MouseX;`MouseY] breakable:true
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action:(fun ev ->
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let x = ev.ev_MouseX and y = ev.ev_MouseY in
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let `Linechar (l, c) =
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Text.index tw index:(`Atxy(x,y), []) in
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try try
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search_pos_signature pt pos:(lines_to_chars l in:text + c) :env;
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break ()
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with Found_sig (kind, lid, env) ->
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let menu = view_decl_menu lid :kind :env parent:tw in
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let x = x + Winfo.rootx tw and y = y + Winfo.rooty tw - 10 in
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Menu.popup menu :x :y
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with Not_found -> ())
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and view_signature_item sign :path :env =
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view_signature sign title:(string_of_path path) ?path:(parent_path path) :env
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and view_module path :env =
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match find_module path env with
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Tmty_signature sign ->
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!view_defined_ref (Searchid.longident_of_path path) :env
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| modtype ->
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let id = ident_of_path path default:"M" in
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view_signature_item [Tsig_module (id, modtype)] :path :env
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and view_module_id id :env =
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let path, _ = lookup_module id env in
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view_module path :env
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and view_type_decl path :env =
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let td = find_type path env in
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try match td.type_manifest with None -> raise Not_found
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| Some ty -> match Ctype.repr ty with
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{desc = Tobject _} ->
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let clt = find_cltype path env in
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view_signature_item :path :env
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[Tsig_cltype(ident_of_path path default:"ct", clt)]
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| _ -> raise Not_found
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with Not_found ->
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view_signature_item :path :env
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[Tsig_type(ident_of_path path default:"t", td)]
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and view_type_id li :env =
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let path, decl = lookup_type li env in
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view_type_decl path :env
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and view_class_id li :env =
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let path, cl = lookup_class li env in
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view_signature_item :path :env
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[Tsig_class(ident_of_path path default:"c", cl)]
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and view_cltype_id li :env =
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let path, clt = lookup_cltype li env in
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view_signature_item :path :env
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[Tsig_cltype(ident_of_path path default:"ct", clt)]
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and view_modtype_id li :env =
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let path, td = lookup_modtype li env in
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view_signature_item :path :env
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[Tsig_modtype(ident_of_path path default:"S", td)]
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and view_expr_type ?:title ?:path ?:env ?(:name="noname") t =
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let title =
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match title, path with Some title, _ -> title
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| None, Some path -> string_of_path path
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| None, None -> "Expression type"
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and path, id =
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match path with None -> None, Ident.create name
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| Some path -> parent_path path, ident_of_path path default:name
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in
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view_signature :title ?:path ?:env
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[Tsig_value (id, {val_type = t; val_kind = Val_reg})]
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and view_decl lid :kind :env =
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match kind with
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`Type -> view_type_id lid :env
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| `Class -> view_class_id lid :env
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| `Module -> view_module_id lid :env
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| `Modtype -> view_modtype_id lid :env
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and view_decl_menu lid :kind :env :parent =
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let path, kname =
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try match kind with
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`Type -> fst (lookup_type lid env), "Type"
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| `Class -> fst (lookup_class lid env), "Class"
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| `Module -> fst (lookup_module lid env), "Module"
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| `Modtype -> fst (lookup_modtype lid env), "Module type"
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with Env.Error _ -> raise Not_found
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in
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let menu = Menu.create parent tearoff:false in
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let label = kname ^ " " ^ string_of_path path in
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begin match path with
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Pident _ ->
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Menu.add_command menu :label state:`Disabled
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| _ ->
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Menu.add_command menu :label
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command:(fun () -> view_decl lid :kind :env);
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end;
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if kind = `Type or kind = `Modtype then begin
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let buf = new buffer len:60 in
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let (fo,ff) = Format.get_formatter_output_functions ()
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and margin = Format.get_margin () in
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Format.set_formatter_output_functions out:buf#out flush:(fun () -> ());
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Format.set_margin 60;
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Format.open_hbox ();
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if kind = `Type then
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Printtyp.type_declaration
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(ident_of_path path default:"t")
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(find_type path env)
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else
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Printtyp.modtype_declaration
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(ident_of_path path default:"S")
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(find_modtype path env);
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Format.close_box (); Format.print_flush ();
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Format.set_formatter_output_functions out:fo flush:ff;
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Format.set_margin margin;
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let l = Str.split sep:~"\n" buf#get in
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let font =
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let font =
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Option.get Widget.default_toplevel name:"font" class:"Font" in
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if font = "" then "7x14" else font
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in
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(* Menu.add_separator menu; *)
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List.iter l
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fun:(fun label -> Menu.add_command menu :label :font state:`Disabled)
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end;
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menu
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(* search and view in a structure *)
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type fkind =
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[ `Exp [`Expr|`Pat|`Const|`Val Path.t|`Var Path.t|`New Path.t]
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* Types.type_expr
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| `Class Path.t * Types.class_type
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| `Module Path.t * Types.module_type ]
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exception Found_str of fkind * Env.t
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let view_type kind :env =
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match kind with
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`Exp (k, ty) ->
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begin match k with
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`Expr -> view_expr_type ty title:"Expression type" :env
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| `Pat -> view_expr_type ty title:"Pattern type" :env
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| `Const -> view_expr_type ty title:"Constant type" :env
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| `Val path ->
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begin try
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let vd = find_value path env in
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view_signature_item :path :env
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[Tsig_value(ident_of_path path default:"v", vd)]
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with Not_found ->
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view_expr_type ty :path :env
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end
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| `Var path ->
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let vd = find_value path env in
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view_expr_type vd.val_type :env :path title:"Variable type"
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| `New path ->
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let cl = find_class path env in
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view_signature_item :path :env
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[Tsig_class(ident_of_path path default:"c", cl)]
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end
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| `Class (path, cty) ->
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let cld = { cty_params = []; cty_type = cty;
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cty_path = path; cty_new = None } in
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view_signature_item :path :env
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[Tsig_class(ident_of_path path default:"c", cld)]
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| `Module (path, mty) ->
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match mty with
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Tmty_signature sign -> view_signature sign :path :env
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| modtype ->
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view_signature_item :path :env
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[Tsig_module(ident_of_path path default:"M", mty)]
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let view_type_menu kind :env :parent =
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let title =
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match kind with
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`Exp (`Expr,_) -> "Expression :"
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| `Exp (`Pat, _) -> "Pattern :"
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| `Exp (`Const, _) -> "Constant :"
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| `Exp (`Val path, _) -> "Value " ^ string_of_path path ^ " :"
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| `Exp (`Var path, _) ->
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"Variable " ^ Ident.name (ident_of_path path default:"noname") ^ " :"
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| `Exp (`New path, _) -> "Class " ^ string_of_path path ^ " :"
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| `Class (path, _) -> "Class " ^ string_of_path path ^ " :"
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| `Module (path,_) -> "Module " ^ string_of_path path in
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let menu = Menu.create parent tearoff:false in
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begin match kind with
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`Exp((`Expr | `Pat | `Const | `Val (Pident _)),_) ->
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Menu.add_command menu label:title state:`Disabled
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| `Exp _ | `Class _ | `Module _ ->
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Menu.add_command menu label:title
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command:(fun () -> view_type kind :env)
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end;
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begin match kind with `Module _ | `Class _ -> ()
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| `Exp(_, ty) ->
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let buf = new buffer len:60 in
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let (fo,ff) = Format.get_formatter_output_functions ()
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and margin = Format.get_margin () in
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Format.set_formatter_output_functions out:buf#out flush:(fun () -> ());
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Format.set_margin 60;
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Format.open_hbox ();
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Printtyp.reset ();
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Printtyp.mark_loops ty;
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Printtyp.type_expr ty;
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Format.close_box (); Format.print_flush ();
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Format.set_formatter_output_functions out:fo flush:ff;
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Format.set_margin margin;
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let l = Str.split sep:~"\n" buf#get in
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let font =
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let font =
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Option.get Widget.default_toplevel name:"font" class:"Font" in
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if font = "" then "7x14" else font
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in
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(* Menu.add_separator menu; *)
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List.iter l fun:
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begin fun label -> match (Ctype.repr ty).desc with
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Tconstr (path,_,_) ->
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Menu.add_command menu :label :font
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command:(fun () -> view_type_decl path :env)
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| Tvariant {row_name = Some (path, _)} ->
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Menu.add_command menu :label :font
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command:(fun () -> view_type_decl path :env)
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| _ ->
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Menu.add_command menu :label :font state:`Disabled
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end
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end;
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menu
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let rec search_pos_structure :pos str =
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List.iter str fun:
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begin function
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Tstr_eval exp -> search_pos_expr exp :pos
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| Tstr_value (rec_flag, l) ->
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List.iter l fun:
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begin fun (pat, exp) ->
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let env =
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if rec_flag = Asttypes.Recursive then exp.exp_env else Env.empty in
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search_pos_pat pat :pos :env;
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search_pos_expr exp :pos
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end
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| Tstr_primitive (_, vd) ->()
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| Tstr_type _ -> ()
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| Tstr_exception _ -> ()
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| Tstr_module (_, m) -> search_pos_module_expr m :pos
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| Tstr_modtype _ -> ()
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| Tstr_open _ -> ()
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| Tstr_class l ->
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List.iter l fun:(fun (id, _, _, cl) -> search_pos_class_expr cl :pos)
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| Tstr_cltype _ -> ()
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end
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and search_pos_class_expr :pos cl =
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if in_loc cl.cl_loc :pos then begin
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begin match cl.cl_desc with
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Tclass_ident path ->
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raise (Found_str (`Class (path, cl.cl_type), !start_env))
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| Tclass_structure cls ->
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List.iter cls.cl_field fun:
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begin function
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Cf_inher (cl, _, _) ->
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search_pos_class_expr cl :pos
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| Cf_val (_, _, exp) -> search_pos_expr exp :pos
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| Cf_meth (_, exp) -> search_pos_expr exp :pos
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| Cf_let (_, pel, iel) ->
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List.iter pel fun:
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begin fun (pat, exp) ->
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search_pos_pat pat :pos env:exp.exp_env;
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search_pos_expr exp :pos
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end;
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List.iter iel fun:(fun (_,exp) -> search_pos_expr exp :pos)
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| Cf_init exp -> search_pos_expr exp :pos
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end
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| Tclass_fun (pat, iel, cl, _) ->
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search_pos_pat pat :pos env:pat.pat_env;
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List.iter iel fun:(fun (_,exp) -> search_pos_expr exp :pos);
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search_pos_class_expr cl :pos
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| Tclass_apply (cl, el) ->
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search_pos_class_expr cl :pos;
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List.iter el fun:(Misc.may (search_pos_expr :pos))
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| Tclass_let (_, pel, iel, cl) ->
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List.iter pel fun:
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begin fun (pat, exp) ->
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search_pos_pat pat :pos env:exp.exp_env;
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search_pos_expr exp :pos
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end;
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List.iter iel fun:(fun (_,exp) -> search_pos_expr exp :pos);
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search_pos_class_expr cl :pos
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| Tclass_constraint (cl, _, _, _) ->
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search_pos_class_expr cl :pos
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end;
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raise (Found_str
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(`Class (Pident (Ident.create "c"), cl.cl_type), !start_env))
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end
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and search_pos_expr :pos exp =
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if in_loc exp.exp_loc :pos then begin
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begin match exp.exp_desc with
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Texp_ident (path, _) ->
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raise (Found_str (`Exp(`Val path, exp.exp_type), exp.exp_env))
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| Texp_constant v ->
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raise (Found_str (`Exp(`Const, exp.exp_type), exp.exp_env))
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| Texp_let (_, expl, exp) ->
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List.iter expl fun:
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begin fun (pat, exp') ->
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search_pos_pat pat :pos env:exp.exp_env;
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search_pos_expr exp' :pos
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end;
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search_pos_expr exp :pos
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| Texp_function (l, _) ->
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List.iter l fun:
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begin fun (pat, exp) ->
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search_pos_pat pat :pos env:exp.exp_env;
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search_pos_expr exp :pos
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end
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| Texp_apply (exp, l) ->
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List.iter l fun:(Misc.may (search_pos_expr :pos));
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search_pos_expr exp :pos
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| Texp_match (exp, l, _) ->
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search_pos_expr exp :pos;
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List.iter l fun:
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begin fun (pat, exp) ->
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search_pos_pat pat :pos env:exp.exp_env;
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search_pos_expr exp :pos
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end
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| Texp_try (exp, l) ->
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search_pos_expr exp :pos;
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List.iter l fun:
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begin fun (pat, exp) ->
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search_pos_pat pat :pos env:exp.exp_env;
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search_pos_expr exp :pos
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end
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| Texp_tuple l -> List.iter l fun:(search_pos_expr :pos)
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| Texp_construct (_, l) -> List.iter l fun:(search_pos_expr :pos)
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| Texp_variant (_, None) -> ()
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| Texp_variant (_, Some exp) -> search_pos_expr exp :pos
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| Texp_record (l, opt) ->
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List.iter l fun:(fun (_, exp) -> search_pos_expr exp :pos);
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(match opt with None -> () | Some exp -> search_pos_expr exp :pos)
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| Texp_field (exp, _) -> search_pos_expr exp :pos
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| Texp_setfield (a, _, b) ->
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search_pos_expr a :pos; search_pos_expr b :pos
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| Texp_array l -> List.iter l fun:(search_pos_expr :pos)
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| Texp_ifthenelse (a, b, c) ->
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search_pos_expr a :pos; search_pos_expr b :pos;
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begin match c with None -> ()
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| Some exp -> search_pos_expr exp :pos
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end
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| Texp_sequence (a,b) ->
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search_pos_expr a :pos; search_pos_expr b :pos
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| Texp_while (a,b) ->
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search_pos_expr a :pos; search_pos_expr b :pos
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| Texp_for (_, a, b, _, c) ->
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List.iter [a;b;c] fun:(search_pos_expr :pos)
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| Texp_when (a, b) ->
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search_pos_expr a :pos; search_pos_expr b :pos
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| Texp_send (exp, _) -> search_pos_expr exp :pos
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| Texp_new (path, _) ->
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raise (Found_str (`Exp(`New path, exp.exp_type), exp.exp_env))
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| Texp_instvar (_,path) ->
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raise (Found_str (`Exp(`Var path, exp.exp_type), exp.exp_env))
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| Texp_setinstvar (_, path, exp) ->
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search_pos_expr exp :pos;
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raise (Found_str (`Exp(`Var path, exp.exp_type), exp.exp_env))
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| Texp_override (_, l) ->
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List.iter l fun:(fun (_, exp) -> search_pos_expr exp :pos)
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| Texp_letmodule (id, modexp, exp) ->
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search_pos_module_expr modexp :pos;
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search_pos_expr exp :pos
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end;
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raise (Found_str (`Exp(`Expr, exp.exp_type), exp.exp_env))
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end
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and search_pos_pat :pos :env pat =
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if in_loc pat.pat_loc :pos then begin
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begin match pat.pat_desc with
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Tpat_any -> ()
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| Tpat_var id ->
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raise (Found_str (`Exp(`Val (Pident id), pat.pat_type), env))
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| Tpat_alias (pat, _) -> search_pos_pat pat :pos :env
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| Tpat_constant _ ->
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raise (Found_str (`Exp(`Const, pat.pat_type), env))
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| Tpat_tuple l ->
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List.iter l fun:(search_pos_pat :pos :env)
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| Tpat_construct (_, l) ->
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List.iter l fun:(search_pos_pat :pos :env)
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| Tpat_variant (_, None, _) -> ()
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| Tpat_variant (_, Some pat, _) -> search_pos_pat pat :pos :env
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| Tpat_record l ->
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List.iter l fun:(fun (_, pat) -> search_pos_pat pat :pos :env)
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| Tpat_array l ->
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List.iter l fun:(search_pos_pat :pos :env)
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| Tpat_or (a, b) ->
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search_pos_pat a :pos :env; search_pos_pat b :pos :env
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end;
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raise (Found_str (`Exp(`Pat, pat.pat_type), env))
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end
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and search_pos_module_expr :pos m =
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if in_loc m.mod_loc :pos then begin
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begin match m.mod_desc with
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Tmod_ident path ->
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raise
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(Found_str (`Module (path, m.mod_type), m.mod_env))
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| Tmod_structure str -> search_pos_structure str :pos
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| Tmod_functor (_, _, m) -> search_pos_module_expr m :pos
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| Tmod_apply (a, b, _) ->
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search_pos_module_expr a :pos; search_pos_module_expr b :pos
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| Tmod_constraint (m, _, _) -> search_pos_module_expr m :pos
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end;
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raise (Found_str (`Module (Pident (Ident.create "M"), m.mod_type),
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m.mod_env))
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end
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