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-rw-r--r--lib/diameter/src/compiler/diameter_codegen.erl256
1 files changed, 125 insertions, 131 deletions
diff --git a/lib/diameter/src/compiler/diameter_codegen.erl b/lib/diameter/src/compiler/diameter_codegen.erl
index 0fd4a0b301..a38cc42df2 100644
--- a/lib/diameter/src/compiler/diameter_codegen.erl
+++ b/lib/diameter/src/compiler/diameter_codegen.erl
@@ -20,17 +20,18 @@
-module(diameter_codegen).
%%
-%% This module generates .erl and .hrl files for encode/decode
-%% modules from the orddict parsed from a .dia (aka spec) file by
-%% dis_spec_util. The generated code is very simple (one-liners), the
-%% generated functions being called by code included from dis_gen.hrl
-%% in order to encode/decode messages and AVPs. The orddict itself is
-%% returned by dict/0 in the generated module and dis_spec_util calls
-%% this function when importing spec files. (That is, beam has to be
-%% compiled from an imported spec file before it can be imported.)
+%% This module generates erl/hrl files for encode/decode modules
+%% from the orddict parsed from a dictionary file (.dia) by
+%% diameter_dict_util. The generated code is simple (one-liners),
+%% the generated functions being called by code included iin the
+%% generated modules from diameter_gen.hrl. The orddict itself is
+%% returned by dict/0 in the generated module and diameter_dict_util
+%% calls this function when importing dictionaries as a consequence
+%% of @inherits sections. That is, @inherits introduces a dependency
+%% on the beam file of another dictionary.
%%
--export([from_spec/4]).
+-export([from_dict/4]).
%% Internal exports (for test).
-export([file/1,
@@ -38,17 +39,16 @@
file/3]).
-include("diameter_forms.hrl").
+-include("diameter_vsn.hrl").
-%% Generated functions that could have no generated clauses will have
-%% a trailing ?UNEXPECTED clause that should never execute.
--define(UNEXPECTED(N), {?clause, [?VAR('_') || _ <- lists:seq(1,N)],
- [],
- [?APPLY(erlang,
- error,
- [?TERM({unexpected, getr(module)})])]}).
+-define(S, atom_to_list).
+-define(A, list_to_atom).
+-define(Atom(T), ?ATOM(?A(T))).
-from_spec(File, Spec, Opts, Mode) ->
+%% ===========================================================================
+
+from_dict(File, Spec, Opts, Mode) ->
Outdir = proplists:get_value(outdir, Opts, "."),
putr(verbose, lists:member(verbose, Opts)),
putr(debug, lists:member(debug, Opts)),
@@ -73,7 +73,7 @@ getr(Key) ->
%% ===========================================================================
%% ===========================================================================
-%% Generate from parsed spec in a file.
+%% Generate from parsed dictionary in a file.
file(F) ->
file(F, spec).
@@ -83,7 +83,7 @@ file(F, Mode) ->
file(F, Outdir, Mode) ->
{ok, [Spec]} = file:consult(F),
- from_spec(F, Spec, Outdir, Mode).
+ from_dict(F, Spec, Outdir, Mode).
%% ===========================================================================
%% ===========================================================================
@@ -108,13 +108,13 @@ w(Path, Spec, Fmt) ->
codegen(File, Spec, Outdir, Mode) ->
Mod = mod(File, orddict:find(name, Spec)),
Path = filename:join(Outdir, Mod), %% minus extension
- gen(Mode, Spec, Mod, Path),
+ gen(Mode, Spec, ?A(Mod), Path),
ok.
mod(File, error) ->
filename:rootname(filename:basename(File));
mod(_, {ok, Mod}) ->
- atom_to_list(Mod).
+ Mod.
gen(spec, Spec, _Mod, Path) ->
write(Path ++ ".spec", Spec);
@@ -124,11 +124,9 @@ gen(hrl, Spec, Mod, Path) ->
gen(erl = Mode, Spec, Mod, Path)
when is_list(Mod) ->
- gen(Mode, Spec, list_to_atom(Mod), Path);
+ gen(Mode, Spec, ?A(Mod), Path);
gen(erl, Spec, Mod, Path) ->
- putr(module, Mod), %% used by ?UNEXPECTED.
-
Forms = [{?attribute, module, Mod},
{?attribute, compile, [{parse_transform, diameter_exprecs}]},
{?attribute, compile, [nowarn_unused_function]},
@@ -224,16 +222,16 @@ a_record(Prefix, ProjF, L) ->
lists:map(fun(T) -> a_record(ProjF(T), Prefix) end, L).
a_record({Nm, Avps}, Prefix) ->
- Name = list_to_atom(Prefix ++ atom_to_list(Nm)),
+ Name = list_to_atom(Prefix ++ Nm),
Fields = lists:map(fun field/1, Avps),
{?attribute, record, {Name, Fields}}.
field(Avp) ->
{Name, Arity} = avp_info(Avp),
if 1 == Arity ->
- {?record_field, ?ATOM(Name)};
+ {?record_field, ?Atom(Name)};
true ->
- {?record_field, ?ATOM(Name), ?NIL}
+ {?record_field, ?Atom(Name), ?NIL}
end.
%%% ------------------------------------------------------------------------
@@ -256,7 +254,7 @@ c_id({ok, Id}) ->
{?clause, [], [], [?INTEGER(Id)]};
c_id(error) ->
- ?UNEXPECTED(0).
+ ?BADARG(0).
%%% ------------------------------------------------------------------------
%%% # vendor_id/0
@@ -274,7 +272,7 @@ f_vendor_id(Spec) ->
f_vendor_name(Spec) ->
{_, Name} = orddict:fetch(vendor, Spec),
{?function, vendor_name, 0,
- [{?clause, [], [], [?ATOM(Name)]}]}.
+ [{?clause, [], [], [?Atom(Name)]}]}.
%%% ------------------------------------------------------------------------
%%% # msg_name/1
@@ -294,15 +292,10 @@ msg_name(Spec) ->
c_msg_name({Code, Req, Ans}) ->
[{?clause, [?INTEGER(Code), ?ATOM(true)],
[],
- [?ATOM(mname(Req))]},
+ [?Atom(Req)]},
{?clause, [?INTEGER(Code), ?ATOM(false)],
[],
- [?ATOM(mname(Ans))]}].
-
-mname({N, _Abbr}) ->
- N;
-mname(N) ->
- N.
+ [?Atom(Ans)]}].
%%% ------------------------------------------------------------------------
%%% # msg2rec/1
@@ -313,30 +306,11 @@ f_msg2rec(Spec) ->
msg2rec(Spec) ->
Pre = prefix(Spec),
- Dict = dict:from_list(lists:flatmap(fun msgs/1,
- get_value(command_codes, Spec))),
- lists:flatmap(fun(T) -> msg2rec(T, Dict, Pre) end,
- get_value(messages, Spec))
- ++ [?UNEXPECTED(1)].
-
-msgs({_Code, Req, Ans}) ->
- [{mname(Req), Req}, {mname(Ans), Ans}].
-
-msg2rec({N,_,_,_,_}, Dict, Pre) ->
- c_msg2rec(fetch_names(N, Dict), Pre).
-
-fetch_names(Name, Dict) ->
- case dict:find(Name, Dict) of
- {ok, N} ->
- N;
- error ->
- Name
- end.
+ lists:map(fun(T) -> c_msg2rec(T, Pre) end, get_value(messages, Spec))
+ ++ [?BADARG(1)].
-c_msg2rec({N,A}, Pre) ->
- [c_name2rec(N, N, Pre), c_name2rec(A, N, Pre)];
-c_msg2rec(N, Pre) ->
- [c_name2rec(N, N, Pre)].
+c_msg2rec({N,_,_,_,_}, Pre) ->
+ c_name2rec(N, Pre).
%%% ------------------------------------------------------------------------
%%% # rec2msg/1
@@ -348,10 +322,10 @@ f_rec2msg(Spec) ->
rec2msg(Spec) ->
Pre = prefix(Spec),
lists:map(fun(T) -> c_rec2msg(T, Pre) end, get_value(messages, Spec))
- ++ [?UNEXPECTED(1)].
+ ++ [?BADARG(1)].
c_rec2msg({N,_,_,_,_}, Pre) ->
- {?clause, [?ATOM(rec_name(N, Pre))], [], [?ATOM(N)]}.
+ {?clause, [?Atom(rec_name(N, Pre))], [], [?Atom(N)]}.
%%% ------------------------------------------------------------------------
%%% # name2rec/1
@@ -364,11 +338,11 @@ name2rec(Spec) ->
Pre = prefix(Spec),
Groups = get_value(grouped, Spec)
++ lists:flatmap(fun avps/1, get_value(import_groups, Spec)),
- lists:map(fun({N,_,_,_}) -> c_name2rec(N, N, Pre) end, Groups)
+ lists:map(fun({N,_,_,_}) -> c_name2rec(N, Pre) end, Groups)
++ [{?clause, [?VAR('T')], [], [?CALL(msg2rec, [?VAR('T')])]}].
-c_name2rec(Name, Rname, Pre) ->
- {?clause, [?ATOM(Name)], [], [?ATOM(rec_name(Rname, Pre))]}.
+c_name2rec(Name, Pre) ->
+ {?clause, [?Atom(Name)], [], [?Atom(rec_name(Name, Pre))]}.
avps({_Mod, Avps}) ->
Avps.
@@ -399,8 +373,8 @@ avp_name(Spec) ->
lists:map(fun(T) -> c_avp_name(T, Vid, Vs) end, Avps)
++ [{?clause, [?VAR('_'), ?VAR('_')], [], [?ATOM('AVP')]}].
-c_avp_name({Name, Code, Type, Flags, _Encr}, Vid, Vs) ->
- c_avp_name({Name, Type},
+c_avp_name({Name, Code, Type, Flags}, Vid, Vs) ->
+ c_avp_name({?A(Name), ?A(Type)},
Code,
lists:member('V', Flags),
Vid,
@@ -445,60 +419,75 @@ c_avp_arity(Name, Avps) ->
c_arity(Name, Avp) ->
{AvpName, Arity} = avp_info(Avp),
- {?clause, [?ATOM(Name), ?ATOM(AvpName)], [], [?TERM(Arity)]}.
+ {?clause, [?Atom(Name), ?Atom(AvpName)], [], [?TERM(Arity)]}.
%%% ------------------------------------------------------------------------
%%% # avp/3
%%% ------------------------------------------------------------------------
f_avp(Spec) ->
- {?function, avp, 3, avp(Spec) ++ [?UNEXPECTED(3)]}.
+ {?function, avp, 3, avp(Spec) ++ [?BADARG(3)]}.
avp(Spec) ->
- Native = get_value(avp_types, Spec),
- Custom = get_value(custom_types, Spec),
- Imported = get_value(import_avps, Spec),
- Enums = get_value(enums, Spec),
- avp([{N,T} || {N,_,T,_,_} <- Native], Imported, Custom, Enums).
+ Native = get_value(avp_types, Spec),
+ CustomMods = get_value(custom_types, Spec),
+ TypeMods = get_value(codecs, Spec),
+ Imported = get_value(import_avps, Spec),
+ Enums = get_value(enum, Spec),
-avp(Native, Imported, Custom, Enums) ->
- Dict = orddict:from_list(Native),
+ Custom = lists:map(fun({M,As}) -> {M, custom_types, As} end,
+ CustomMods)
+ ++ lists:map(fun({M,As}) -> {M, codecs, As} end,
+ TypeMods),
+ avp(types(Native), Imported, Custom, Enums).
- report(native, Dict),
+types(Avps) ->
+ lists:map(fun({N,_,T,_}) -> {N,T} end, Avps).
+
+avp(Native, Imported, Custom, Enums) ->
+ report(native, Native),
report(imported, Imported),
report(custom, Custom),
- CustomNames = lists:flatmap(fun({_,Ns}) -> Ns end, Custom),
+ TypeDict = lists:foldl(fun({N,_,T,_}, D) -> orddict:store(N,T,D) end,
+ orddict:from_list(Native),
+ lists:flatmap(fun avps/1, Imported)),
+
+ CustomNames = lists:flatmap(fun({_,_,Ns}) -> Ns end, Custom),
lists:map(fun c_base_avp/1,
- lists:filter(fun({N,_}) ->
- false == lists:member(N, CustomNames)
- end,
+ lists:filter(fun({N,_}) -> not_in(CustomNames, N) end,
Native))
- ++ lists:flatmap(fun(I) -> cs_imported_avp(I, Enums) end, Imported)
- ++ lists:flatmap(fun(C) -> cs_custom_avp(C, Dict) end, Custom).
+ ++ lists:flatmap(fun(I) -> cs_imported_avp(I, Enums, CustomNames) end,
+ Imported)
+ ++ lists:flatmap(fun(C) -> cs_custom_avp(C, TypeDict) end, Custom).
+
+not_in(List, X) ->
+ not lists:member(X, List).
c_base_avp({AvpName, T}) ->
- {?clause, [?VAR('T'), ?VAR('Data'), ?ATOM(AvpName)],
+ {?clause, [?VAR('T'), ?VAR('Data'), ?Atom(AvpName)],
[],
[base_avp(AvpName, T)]}.
-base_avp(AvpName, 'Enumerated') ->
- ?CALL(enumerated_avp, [?VAR('T'), ?ATOM(AvpName), ?VAR('Data')]);
+base_avp(AvpName, "Enumerated") ->
+ ?CALL(enumerated_avp, [?VAR('T'), ?Atom(AvpName), ?VAR('Data')]);
-base_avp(AvpName, 'Grouped') ->
- ?CALL(grouped_avp, [?VAR('T'), ?ATOM(AvpName), ?VAR('Data')]);
+base_avp(AvpName, "Grouped") ->
+ ?CALL(grouped_avp, [?VAR('T'), ?Atom(AvpName), ?VAR('Data')]);
base_avp(_, Type) ->
- ?APPLY(diameter_types, Type, [?VAR('T'), ?VAR('Data')]).
+ ?APPLY(diameter_types, ?A(Type), [?VAR('T'), ?VAR('Data')]).
-cs_imported_avp({Mod, Avps}, Enums) ->
- lists:map(fun(A) -> imported_avp(Mod, A, Enums) end, Avps).
+cs_imported_avp({Mod, Avps}, Enums, CustomNames) ->
+ lists:map(fun(A) -> imported_avp(Mod, A, Enums) end,
+ lists:filter(fun({N,_,_,_}) -> not_in(CustomNames, N) end,
+ Avps)).
-imported_avp(_Mod, {AvpName, _, 'Grouped' = T, _, _}, _) ->
+imported_avp(_Mod, {AvpName, _, "Grouped" = T, _}, _) ->
c_base_avp({AvpName, T});
-imported_avp(Mod, {AvpName, _, 'Enumerated' = T, _, _}, Enums) ->
+imported_avp(Mod, {AvpName, _, "Enumerated" = T, _}, Enums) ->
case lists:keymember(AvpName, 1, Enums) of
true ->
c_base_avp({AvpName, T});
@@ -506,34 +495,39 @@ imported_avp(Mod, {AvpName, _, 'Enumerated' = T, _, _}, Enums) ->
c_imported_avp(Mod, AvpName)
end;
-imported_avp(Mod, {AvpName, _, _, _, _}, _) ->
+imported_avp(Mod, {AvpName, _, _, _}, _) ->
c_imported_avp(Mod, AvpName).
c_imported_avp(Mod, AvpName) ->
- {?clause, [?VAR('T'), ?VAR('Data'), ?ATOM(AvpName)],
+ {?clause, [?VAR('T'), ?VAR('Data'), ?Atom(AvpName)],
[],
[?APPLY(Mod, avp, [?VAR('T'),
?VAR('Data'),
- ?ATOM(AvpName)])]}.
+ ?Atom(AvpName)])]}.
-cs_custom_avp({Mod, Avps}, Dict) ->
- lists:map(fun(N) -> c_custom_avp(Mod, N, orddict:fetch(N, Dict)) end,
+cs_custom_avp({Mod, Key, Avps}, Dict) ->
+ lists:map(fun(N) -> c_custom_avp(Mod, Key, N, orddict:fetch(N, Dict)) end,
Avps).
-c_custom_avp(Mod, AvpName, Type) ->
- {?clause, [?VAR('T'), ?VAR('Data'), ?ATOM(AvpName)],
+c_custom_avp(Mod, Key, AvpName, Type) ->
+ {?clause, [?VAR('T'), ?VAR('Data'), ?Atom(AvpName)],
[],
- [?APPLY(Mod, AvpName, [?VAR('T'), ?ATOM(Type), ?VAR('Data')])]}.
+ [custom(Mod, Key, AvpName, Type)]}.
+
+custom(Mod, custom_types, AvpName, Type) ->
+ ?APPLY(?A(Mod), ?A(AvpName), [?VAR('T'), ?Atom(Type), ?VAR('Data')]);
+custom(Mod, codecs, AvpName, Type) ->
+ ?APPLY(?A(Mod), ?A(Type), [?VAR('T'), ?Atom(AvpName), ?VAR('Data')]).
%%% ------------------------------------------------------------------------
%%% # enumerated_avp/3
%%% ------------------------------------------------------------------------
f_enumerated_avp(Spec) ->
- {?function, enumerated_avp, 3, enumerated_avp(Spec) ++ [?UNEXPECTED(3)]}.
+ {?function, enumerated_avp, 3, enumerated_avp(Spec) ++ [?BADARG(3)]}.
enumerated_avp(Spec) ->
- Enums = get_value(enums, Spec),
+ Enums = get_value(enum, Spec),
lists:flatmap(fun cs_enumerated_avp/1, Enums)
++ lists:flatmap(fun({M,Es}) -> enumerated_avp(M, Es, Enums) end,
get_value(import_enums, Spec)).
@@ -554,11 +548,11 @@ cs_enumerated_avp(false, _, _) ->
cs_enumerated_avp({AvpName, Values}) ->
lists:flatmap(fun(V) -> c_enumerated_avp(AvpName, V) end, Values).
-c_enumerated_avp(AvpName, {I,_}) ->
- [{?clause, [?ATOM(decode), ?ATOM(AvpName), ?TERM(<<I:32/integer>>)],
+c_enumerated_avp(AvpName, {_,I}) ->
+ [{?clause, [?ATOM(decode), ?Atom(AvpName), ?TERM(<<I:32/integer>>)],
[],
[?TERM(I)]},
- {?clause, [?ATOM(encode), ?ATOM(AvpName), ?INTEGER(I)],
+ {?clause, [?ATOM(encode), ?Atom(AvpName), ?INTEGER(I)],
[],
[?TERM(<<I:32/integer>>)]}].
@@ -567,7 +561,7 @@ c_enumerated_avp(AvpName, {I,_}) ->
%%% ------------------------------------------------------------------------
f_msg_header(Spec) ->
- {?function, msg_header, 1, msg_header(Spec) ++ [?UNEXPECTED(1)]}.
+ {?function, msg_header, 1, msg_header(Spec) ++ [?BADARG(1)]}.
msg_header(Spec) ->
msg_header(get_value(messages, Spec), Spec).
@@ -582,7 +576,7 @@ msg_header(Msgs, Spec) ->
%% Note that any application id in the message header spec is ignored.
c_msg_header(Name, Code, Flags, ApplId) ->
- {?clause, [?ATOM(Name)],
+ {?clause, [?Atom(Name)],
[],
[?TERM({Code, encode_msg_flags(Flags), ApplId})]}.
@@ -598,7 +592,7 @@ emf('ERR', N) -> N bor 2#00100000.
%%% ------------------------------------------------------------------------
f_avp_header(Spec) ->
- {?function, avp_header, 1, avp_header(Spec) ++ [?UNEXPECTED(1)]}.
+ {?function, avp_header, 1, avp_header(Spec) ++ [?BADARG(1)]}.
avp_header(Spec) ->
Native = get_value(avp_types, Spec),
@@ -610,17 +604,17 @@ avp_header(Spec) ->
lists:flatmap(fun(A) -> c_avp_header({Vid, Vs}, A) end,
Native ++ Imported).
-c_avp_header({Vid, Vs}, {Name, Code, _Type, Flags, _Encr}) ->
- [{?clause, [?ATOM(Name)],
+c_avp_header({Vid, Vs}, {Name, Code, _Type, Flags}) ->
+ [{?clause, [?Atom(Name)],
[],
[?TERM({Code, encode_avp_flags(Flags), vid(Name, Flags, Vs, Vid)})]}];
c_avp_header({_, Vs}, {Mod, Avps}) ->
lists:map(fun(A) -> c_avp_header(Vs, Mod, A) end, Avps).
-c_avp_header(Vs, Mod, {Name, _, _, Flags, _}) ->
- Apply = ?APPLY(Mod, avp_header, [?ATOM(Name)]),
- {?clause, [?ATOM(Name)],
+c_avp_header(Vs, Mod, {Name, _Code, _Type, Flags}) ->
+ Apply = ?APPLY(Mod, avp_header, [?Atom(Name)]),
+ {?clause, [?Atom(Name)],
[],
[case proplists:get_value(Name, Vs) of
undefined ->
@@ -633,9 +627,9 @@ c_avp_header(Vs, Mod, {Name, _, _, Flags, _}) ->
encode_avp_flags(Fs) ->
lists:foldl(fun eaf/2, 0, Fs).
-eaf('V', F) -> 2#10000000 bor F;
-eaf('M', F) -> 2#01000000 bor F;
-eaf('P', F) -> 2#00100000 bor F.
+eaf($V, F) -> 2#10000000 bor F;
+eaf($M, F) -> 2#01000000 bor F;
+eaf($P, F) -> 2#00100000 bor F.
vid(Name, Flags, Vs, Vid) ->
v(lists:member('V', Flags), Name, Vs, Vid).
@@ -656,19 +650,19 @@ empty_value(Spec) ->
Imported = lists:flatmap(fun avps/1, get_value(import_enums, Spec)),
Groups = get_value(grouped, Spec)
++ lists:flatmap(fun avps/1, get_value(import_groups, Spec)),
- Enums = [T || {N,_} = T <- get_value(enums, Spec),
+ Enums = [T || {N,_} = T <- get_value(enum, Spec),
not lists:keymember(N, 1, Imported)]
++ Imported,
lists:map(fun c_empty_value/1, Groups ++ Enums)
++ [{?clause, [?VAR('Name')], [], [?CALL(empty, [?VAR('Name')])]}].
c_empty_value({Name, _, _, _}) ->
- {?clause, [?ATOM(Name)],
+ {?clause, [?Atom(Name)],
[],
- [?CALL(empty_group, [?ATOM(Name)])]};
+ [?CALL(empty_group, [?Atom(Name)])]};
c_empty_value({Name, _}) ->
- {?clause, [?ATOM(Name)],
+ {?clause, [?Atom(Name)],
[],
[?TERM(<<0:32/integer>>)]}.
@@ -678,7 +672,7 @@ c_empty_value({Name, _}) ->
f_dict(Spec) ->
{?function, dict, 0,
- [{?clause, [], [], [?TERM(Spec)]}]}.
+ [{?clause, [], [], [?TERM([?VERSION | Spec])]}]}.
%%% ------------------------------------------------------------------------
%%% # gen_hrl/3
@@ -706,10 +700,10 @@ gen_hrl(Path, Mod, Spec) ->
write("ENUM Macros",
Fd,
- m_enums(PREFIX, false, get_value(enums, Spec))),
+ m_enums(PREFIX, false, get_value(enum, Spec))),
write("DEFINE Macros",
Fd,
- m_enums(PREFIX, false, get_value(defines, Spec))),
+ m_enums(PREFIX, false, get_value(define, Spec))),
lists:foreach(fun({M,Es}) ->
write("ENUM Macros from " ++ atom_to_list(M),
@@ -751,8 +745,8 @@ m_enums(Prefix, Wrap, Enums) ->
m_enum(Prefix, B, {Name, Values}) ->
P = Prefix ++ to_upper(Name) ++ "_",
- lists:map(fun({I,A}) ->
- N = ["'", P, to_upper(z(atom_to_list(A))), "'"],
+ lists:map(fun({A,I}) ->
+ N = ["'", P, to_upper(z(A)), "'"],
wrap(B,
N,
["-define(", N, ", ", integer_to_list(I), ").\n"])
@@ -794,15 +788,15 @@ header() ->
"%%\n\n").
hrl_header(Name) ->
- header() ++ "-hrl_name('" ++ Name ++ ".hrl').\n".
+ header() ++ "-hrl_name('" ++ ?S(Name) ++ ".hrl').\n".
%% avp_info/1
avp_info(Entry) -> %% {Name, Arity}
case Entry of
- {'<',A,'>'} -> {A, 1};
- {A} -> {A, 1};
- [A] -> {A, {0,1}};
+ {{A}} -> {A, 1};
+ {A} -> {A, 1};
+ [A] -> {A, {0,1}};
{Q,T} ->
{A,_} = avp_info(T),
{A, arity(Q)}
@@ -818,10 +812,10 @@ arity(T) -> T.
prefix(Spec) ->
case orddict:find(prefix, Spec) of
{ok, P} ->
- atom_to_list(P) ++ "_";
+ P ++ "_";
error ->
""
end.
rec_name(Name, Prefix) ->
- list_to_atom(Prefix ++ atom_to_list(Name)).
+ Prefix ++ Name.