A patch adding primitives to browse types in the toplevel
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@11317 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02master
Jacques Garrigue
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5b08f5b131
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6cc516aec6
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Index: typing/printtyp.ml
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===================================================================
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--- typing/printtyp.ml (revision 11316)
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+++ typing/printtyp.ml (working copy)
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@@ -894,8 +894,10 @@
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tree_of_class_declaration id decl rs :: tree_of_signature rem
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| Tsig_cltype(id, decl, rs) :: tydecl1 :: tydecl2 :: rem ->
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tree_of_cltype_declaration id decl rs :: tree_of_signature rem
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- | _ ->
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- assert false
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+ | Tsig_class(id, decl, rs) :: _ ->
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+ tree_of_class_declaration id decl rs :: []
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+ | Tsig_cltype(id, decl, rs) :: _ ->
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+ tree_of_cltype_declaration id decl rs :: []
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and tree_of_modtype_declaration id decl =
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let mty =
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Index: toplevel/topdirs.ml
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===================================================================
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--- toplevel/topdirs.ml (revision 11316)
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+++ toplevel/topdirs.ml (working copy)
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@@ -297,10 +297,73 @@
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!traced_functions;
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traced_functions := []
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+(* Warnings *)
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+
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let parse_warnings ppf iserr s =
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try Warnings.parse_options iserr s
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with Arg.Bad err -> fprintf ppf "%s.@." err
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+(* Typing information *)
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+
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+type pkind =
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+ Pvalue
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+ | Ptype
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+ | Pexception
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+ | Pmodule
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+ | Pmodtype
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+ | Pclass
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+ | Pcltype
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+
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+let name_of_kind = function
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+ Pvalue -> "value"
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+ | Ptype -> "type"
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+ | Pexception -> "exception"
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+ | Pmodule -> "module"
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+ | Pmodtype -> "module type"
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+ | Pclass -> "class"
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+ | Pcltype -> "class type"
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+
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+let show_type ppf kind lid =
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+ let env = !Toploop.toplevel_env in
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+ try
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+ let id =
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+ let s = match lid with
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+ Longident.Lident s -> s
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+ | Longident.Ldot (_,s) -> s
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+ | Longident.Lapply _ -> failwith "invalid"
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+ in Ident.create_persistent s
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+ in
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+ let item =
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+ match kind with
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+ Pvalue ->
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+ let path, desc = Env.lookup_value lid env in
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+ Tsig_value (id, desc)
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+ | Ptype ->
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+ let path, desc = Env.lookup_type lid env in
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+ Tsig_type (id, desc, Trec_not)
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+ | Pexception ->
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+ let desc = Env.lookup_constructor lid env in
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+ Tsig_exception (id, desc.cstr_args)
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+ | Pmodule ->
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+ let path, desc = Env.lookup_module lid env in
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+ Tsig_module (id, desc, Trec_not)
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+ | Pmodtype ->
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+ let path, desc = Env.lookup_modtype lid env in
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+ Tsig_modtype (id, desc)
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+ | Pclass ->
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+ let path, desc = Env.lookup_class lid env in
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+ Tsig_class (id, desc, Trec_not)
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+ | Pcltype ->
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+ let path, desc = Env.lookup_cltype lid env in
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+ Tsig_cltype (id, desc, Trec_not)
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+ in
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+ fprintf ppf "%a@." Printtyp.signature [item]
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+ with
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+ Not_found ->
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+ fprintf ppf "Unknown %s.@." (name_of_kind kind)
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+ | Failure "invalid" ->
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+ fprintf ppf "Invalid path %a@." Printtyp.longident lid
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+
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let _ =
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Hashtbl.add directive_table "trace" (Directive_ident (dir_trace std_out));
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Hashtbl.add directive_table "untrace" (Directive_ident (dir_untrace std_out));
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@@ -329,4 +392,19 @@
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(Directive_string (parse_warnings std_out false));
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Hashtbl.add directive_table "warn_error"
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- (Directive_string (parse_warnings std_out true))
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+ (Directive_string (parse_warnings std_out true));
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+
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+ Hashtbl.add directive_table "show_value"
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+ (Directive_ident (show_type std_out Pvalue));
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+ Hashtbl.add directive_table "show_type"
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+ (Directive_ident (show_type std_out Ptype));
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+ Hashtbl.add directive_table "show_exception"
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+ (Directive_ident (show_type std_out Pexception));
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+ Hashtbl.add directive_table "show_module"
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+ (Directive_ident (show_type std_out Pmodule));
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+ Hashtbl.add directive_table "show_module_type"
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+ (Directive_ident (show_type std_out Pmodtype));
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+ Hashtbl.add directive_table "show_class"
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+ (Directive_ident (show_type std_out Pclass));
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+ Hashtbl.add directive_table "show_class_type"
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+ (Directive_ident (show_type std_out Pcltype))
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Index: parsing/parser.mly
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===================================================================
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--- parsing/parser.mly (revision 11316)
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+++ parsing/parser.mly (working copy)
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@@ -1769,6 +1769,11 @@
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LIDENT { Lident $1 }
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| mod_longident DOT LIDENT { Ldot($1, $3) }
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;
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+any_longident:
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+ val_ident { Lident $1 }
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+ | mod_longident DOT val_ident { Ldot($1, $3) }
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+ | mod_longident { $1 }
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+;
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/* Toplevel directives */
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@@ -1776,7 +1781,7 @@
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SHARP ident { Ptop_dir($2, Pdir_none) }
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| SHARP ident STRING { Ptop_dir($2, Pdir_string $3) }
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| SHARP ident INT { Ptop_dir($2, Pdir_int $3) }
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- | SHARP ident val_longident { Ptop_dir($2, Pdir_ident $3) }
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+ | SHARP ident any_longident { Ptop_dir($2, Pdir_ident $3) }
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| SHARP ident FALSE { Ptop_dir($2, Pdir_bool false) }
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| SHARP ident TRUE { Ptop_dir($2, Pdir_bool true) }
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;
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