diff options
Diffstat (limited to 'lib/diameter')
| -rw-r--r-- | lib/diameter/src/compiler/diameter_codegen.erl | 256 |
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. |