%% ``The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved via the world wide web at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% The Initial Developer of the Original Code is Ericsson Utvecklings AB.
%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
%% AB. All Rights Reserved.''
%%
%% $Id: asn1ct_gen.erl,v 1.1 2008/12/17 09:53:29 mikpe Exp $
%%
-module(asn1ct_gen).
-include("asn1_records.hrl").
%%-compile(export_all).
-export([pgen_exports/3,
pgen_hrl/4,
gen_head/3,
demit/1,
emit/1,
fopen/2,
get_inner/1,type/1,def_to_tag/1,prim_bif/1,
type_from_object/1,
get_typefromobject/1,get_fieldcategory/2,
get_classfieldcategory/2,
list2name/1,
list2rname/1,
constructed_suffix/2,
unify_if_string/1,
gen_check_call/7,
get_constraint/2,
insert_once/2,
rt2ct_suffix/1,rt2ct_suffix/0]).
-export([pgen/4,pgen_module/5,mk_var/1, un_hyphen_var/1]).
-export([gen_encode_constructed/4,gen_decode_constructed/4]).
%% pgen(Erules, Module, TypeOrVal)
%% Generate Erlang module (.erl) and (.hrl) file corresponding to an ASN.1 module
%% .hrl file is only generated if necessary
%% Erules = per | ber | ber_bin | per_bin
%% Module = atom()
%% TypeOrVal = {TypeList,ValueList}
%% TypeList = ValueList = [atom()]
pgen(OutFile,Erules,Module,TypeOrVal) ->
pgen_module(OutFile,Erules,Module,TypeOrVal,true).
pgen_module(OutFile,Erules,Module,TypeOrVal,Indent) ->
put(outfile,OutFile),
HrlGenerated = asn1ct_gen:pgen_hrl(Erules,Module,TypeOrVal,Indent),
asn1ct_name:start(),
ErlFile = lists:concat([OutFile,".erl"]),
Fid = asn1ct_gen:fopen(ErlFile,write),
put(gen_file_out,Fid),
asn1ct_gen:gen_head(Erules,Module,HrlGenerated),
pgen_exports(Erules,Module,TypeOrVal),
pgen_dispatcher(Erules,Module,TypeOrVal),
pgen_info(Erules,Module),
pgen_typeorval(wrap_ber(Erules),Module,TypeOrVal),
pgen_partial_incomplete_decode(Erules),
% gen_vars(asn1_db:mod_to_vars(Module)),
% gen_tag_table(AllTypes),
file:close(Fid),
io:format("--~p--~n",[{generated,ErlFile}]).
pgen_typeorval(Erules,Module,{Types,Values,_Ptypes,_Classes,Objects,ObjectSets}) ->
pgen_types(Erules,Module,Types),
pgen_values(Erules,Module,Values),
pgen_objects(Erules,Module,Objects),
pgen_objectsets(Erules,Module,ObjectSets),
case catch lists:member(der,get(encoding_options)) of
true ->
pgen_check_defaultval(Erules,Module);
_ -> ok
end,
pgen_partial_decode(Erules,Module).
pgen_values(_,_,[]) ->
true;
pgen_values(Erules,Module,[H|T]) ->
Valuedef = asn1_db:dbget(Module,H),
gen_value(Valuedef),
pgen_values(Erules,Module,T).
pgen_types(_,Module,[]) ->
gen_value_match(Module),
true;
pgen_types(Erules,Module,[H|T]) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Typedef = asn1_db:dbget(Module,H),
Rtmod:gen_encode(Erules,Typedef),
asn1ct_name:clear(),
Rtmod:gen_decode(Erules,Typedef),
pgen_types(Erules,Module,T).
pgen_objects(_,_,[]) ->
true;
pgen_objects(Erules,Module,[H|T]) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Typedef = asn1_db:dbget(Module,H),
Rtmod:gen_obj_code(Erules,Module,Typedef),
pgen_objects(Erules,Module,T).
pgen_objectsets(_,_,[]) ->
true;
pgen_objectsets(Erules,Module,[H|T]) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
TypeDef = asn1_db:dbget(Module,H),
Rtmod:gen_objectset_code(Erules,TypeDef),
pgen_objectsets(Erules,Module,T).
pgen_check_defaultval(Erules,Module) ->
CheckObjects = ets:tab2list(check_functions),
case get(asndebug) of
true ->
FileName = lists:concat([Module,'.table']),
{ok,IoDevice} = file:open(FileName,[write]),
Fun =
fun(X)->
io:format(IoDevice,"~n~n************~n~n~p~n~n*****"
"********~n~n",[X])
end,
lists:foreach(Fun,CheckObjects),
file:close(IoDevice);
_ -> ok
end,
gen_check_defaultval(Erules,Module,CheckObjects).
pgen_partial_decode(Erules,Module) ->
pgen_partial_inc_dec(Erules,Module),
pgen_partial_dec(Erules,Module).
pgen_partial_inc_dec(Erules,Module) ->
% io:format("Start partial incomplete decode gen?~n"),
case asn1ct:get_gen_state_field(inc_type_pattern) of
undefined ->
% io:format("Partial incomplete decode gen not started: ~w~n",[asn1ct:get_gen_state_field(active)]),
ok;
% [] ->
% ok;
ConfList ->
PatternLists=lists:map(fun({_,P}) -> P end,ConfList),
pgen_partial_inc_dec1(Erules,Module,PatternLists),
gen_partial_inc_dec_refed_funcs(Erules)
end.
%% pgen_partial_inc_dec1 generates a function of the toptype in each
%% of the partial incomplete decoded types.
pgen_partial_inc_dec1(Erules,Module,[P|Ps]) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
TopTypeName = asn1ct:partial_inc_dec_toptype(P),
TypeDef=asn1_db:dbget(Module,TopTypeName),
asn1ct_name:clear(),
asn1ct:update_gen_state(namelist,P),
asn1ct:update_gen_state(active,true),
asn1ct:update_gen_state(prefix,"dec-inc-"),
Rtmod:gen_decode(Erules,TypeDef),
%% asn1ct:update_gen_state(namelist,tl(P)), %%
gen_dec_part_inner_constr(Erules,TypeDef,[TopTypeName]),
pgen_partial_inc_dec1(Erules,Module,Ps);
pgen_partial_inc_dec1(_,_,[]) ->
ok.
gen_partial_inc_dec_refed_funcs(Erule) when Erule == ber_bin_v2 ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erule),
rt2ct_suffix(Erule)])),
case asn1ct:next_refed_func() of
[] ->
ok;
{#'Externaltypereference'{module=M,type=Name},Pattern} ->
TypeDef = asn1_db:dbget(M,Name),
asn1ct:update_gen_state(namelist,Pattern),
Rtmod:gen_inc_decode(Erule,TypeDef),
gen_dec_part_inner_constr(Erule,TypeDef,[Name]),
gen_partial_inc_dec_refed_funcs(Erule);
_ ->
gen_partial_inc_dec_refed_funcs(Erule)
end;
gen_partial_inc_dec_refed_funcs(_) ->
ok.
pgen_partial_dec(_Erules,_Module) ->
ok. %%%% implement later
%% generate code for all inner types that are called from the top type
%% of the partial incomplete decode
gen_dec_part_inner_constr(Erules,TypeDef,TypeName) ->
Def = TypeDef#typedef.typespec,
InnerType = asn1ct_gen:get_inner(Def#type.def),
case InnerType of
'SET' ->
#'SET'{components=Components} = Def#type.def,
gen_dec_part_inner_types(Erules,Components,TypeName);
%% Continue generate the inner of each component
'SEQUENCE' ->
#'SEQUENCE'{components=Components} = Def#type.def,
gen_dec_part_inner_types(Erules,Components,TypeName);
'CHOICE' ->
{_,Components} = Def#type.def,
gen_dec_part_inner_types(Erules,Components,TypeName);
'SEQUENCE OF' ->
%% this and next case must be the last component in the
%% partial decode chain here. Not likely that this occur.
{_,Type} = Def#type.def,
NameSuffix = constructed_suffix(InnerType,Type#type.def),
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Rtmod:gen_decode(Erules,[NameSuffix|TypeName],Type);
%% gen_types(Erules,[NameSuffix|Typename],Type);
'SET OF' ->
{_,Type} = Def#type.def,
NameSuffix = constructed_suffix(InnerType,Type#type.def),
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Rtmod:gen_decode(Erules,[NameSuffix|TypeName],Type);
_ ->
ok
end.
gen_dec_part_inner_types(Erules,[ComponentType|Rest],TypeName) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Rtmod:gen_decode(Erules,TypeName,ComponentType),
gen_dec_part_inner_types(Erules,Rest,TypeName);
gen_dec_part_inner_types(Erules,{Comps1,Comps2},TypeName)
when list(Comps1),list(Comps2) ->
gen_dec_part_inner_types(Erules,Comps1 ++ Comps2,TypeName);
gen_dec_part_inner_types(_,[],_) ->
ok.
pgen_partial_incomplete_decode(Erule) ->
case asn1ct:get_gen_state_field(active) of
true ->
pgen_partial_incomplete_decode1(Erule),
asn1ct:reset_gen_state();
_ ->
ok
end.
pgen_partial_incomplete_decode1(ber_bin_v2) ->
case asn1ct:read_config_data(partial_incomplete_decode) of
undefined ->
ok;
Data ->
lists:foreach(fun emit_partial_incomplete_decode/1,Data)
end,
GeneratedFs= asn1ct:get_gen_state_field(gen_refed_funcs),
% io:format("GeneratedFs :~n~p~n",[GeneratedFs]),
gen_part_decode_funcs(GeneratedFs,0);
pgen_partial_incomplete_decode1(_) -> ok.
emit_partial_incomplete_decode({FuncName,TopTypeName,Pattern}) ->
emit([{asis,FuncName},"(Bytes) ->",nl,
" decode_partial_incomplete(",{asis,TopTypeName},",Bytes,",{asis,Pattern},").",nl]);
emit_partial_incomplete_decode(D) ->
throw({error,{asn1,{"bad data in asn1config file",D}}}).
gen_part_decode_funcs([Data={Name,_,_,Type}|GeneratedFs],N) ->
InnerType =
case Type#type.def of
#'ObjectClassFieldType'{type=OCFTType} ->
OCFTType;
_ ->
get_inner(Type#type.def)
end,
WhatKind = type(InnerType),
TypeName=list2name(Name),
if
N > 0 -> emit([";",nl]);
true -> ok
end,
emit(["decode_inc_disp('",TypeName,"',Data) ->",nl]),
gen_part_decode_funcs(WhatKind,TypeName,Data),
gen_part_decode_funcs(GeneratedFs,N+1);
gen_part_decode_funcs([_H|T],N) ->
gen_part_decode_funcs(T,N);
gen_part_decode_funcs([],N) ->
if
N > 0 ->
emit([".",nl]);
true ->
ok
end.
gen_part_decode_funcs(#'Externaltypereference'{module=M,type=T},
_TypeName,Data) ->
#typedef{typespec=TS} = asn1_db:dbget(M,T),
InnerType =
case TS#type.def of
#'ObjectClassFieldType'{type=OCFTType} ->
OCFTType;
_ ->
get_inner(TS#type.def)
end,
WhatKind = type(InnerType),
gen_part_decode_funcs(WhatKind,[T],Data);
gen_part_decode_funcs({constructed,bif},TypeName,
{_Name,parts,Tag,_Type}) ->
emit([" case Data of",nl,
" L when list(L) ->",nl,
" 'dec_",TypeName,"'(lists:map(fun(X)->element(1,?RT_BER:decode(X)) end,L),",{asis,Tag},");",nl,
" _ ->",nl,
" [Res] = 'dec_",TypeName,"'([Data],",{asis,Tag},"),",nl,
" Res",nl,
" end"]);
gen_part_decode_funcs(WhatKind,_TypeName,{_Name,parts,_Tag,_Type}) ->
throw({error,{asn1,{"only SEQUENCE OF/SET OF may have the partial incomplete directive 'parts'.",WhatKind}}});
gen_part_decode_funcs({constructed,bif},TypeName,
{_Name,undecoded,Tag,_Type}) ->
emit([" 'dec_",TypeName,"'(Data,",{asis,Tag},")"]);
gen_part_decode_funcs({primitive,bif},_TypeName,
{_Name,undecoded,Tag,Type}) ->
% Argument no 6 is 0, i.e. bit 6 for primitive encoding.
asn1ct_gen_ber_bin_v2:gen_dec_prim(ber_bin_v2,Type,"Data",Tag,[],0,", mandatory, ");
gen_part_decode_funcs(WhatKind,_TypeName,{_,Directive,_,_}) ->
throw({error,{asn1,{"Not implemented yet",WhatKind," partial incomplete directive:",Directive}}}).
gen_types(Erules,Tname,{RootList,ExtList}) when list(RootList) ->
gen_types(Erules,Tname,RootList),
gen_types(Erules,Tname,ExtList);
gen_types(Erules,Tname,[{'EXTENSIONMARK',_,_}|Rest]) ->
gen_types(Erules,Tname,Rest);
gen_types(Erules,Tname,[ComponentType|Rest]) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Rtmod:gen_encode(Erules,Tname,ComponentType),
asn1ct_name:clear(),
Rtmod:gen_decode(Erules,Tname,ComponentType),
gen_types(Erules,Tname,Rest);
gen_types(_,_,[]) ->
true;
gen_types(Erules,Tname,Type) when record(Type,type) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_gen_",erule(Erules),
rt2ct_suffix(Erules)])),
asn1ct_name:clear(),
Rtmod:gen_encode(Erules,Tname,Type),
asn1ct_name:clear(),
Rtmod:gen_decode(Erules,Tname,Type).
gen_value_match(Module) ->
case get(value_match) of
{true,Module} ->
emit(["value_match([{Index,Cname}|Rest],Value) ->",nl,
" Value2 =",nl,
" case element(Index,Value) of",nl,
" {Cname,Val2} -> Val2;",nl,
" X -> X",nl,
" end,",nl,
" value_match(Rest,Value2);",nl,
"value_match([],Value) ->",nl,
" Value.",nl]);
_ -> ok
end,
put(value_match,undefined).
gen_check_defaultval(Erules,Module,[{Name,Type}|Rest]) ->
gen_check_func(Name,Type),
gen_check_defaultval(Erules,Module,Rest);
gen_check_defaultval(_,_,[]) ->
ok.
gen_check_func(Name,FType = #type{def=Def}) ->
emit({Name,"(V,asn1_DEFAULT) ->",nl," true;",nl}),
emit({Name,"(V,V) ->",nl," true;",nl}),
emit({Name,"(V,{_,V}) ->",nl," true;",nl}),
case Def of
{'SEQUENCE OF',Type} ->
gen_check_sof(Name,'SEQOF',Type);
{'SET OF',Type} ->
gen_check_sof(Name,'SETOF',Type);
#'SEQUENCE'{components=Components} ->
gen_check_sequence(Name,Components);
#'SET'{components=Components} ->
gen_check_sequence(Name,Components);
{'CHOICE',Components} ->
gen_check_choice(Name,Components);
#'Externaltypereference'{type=T} ->
emit({Name,"(DefaultValue,Value) ->",nl}),
emit({" ",list2name([T,check]),"(DefaultValue,Value).",nl});
MaybePrim ->
InnerType = get_inner(MaybePrim),
case type(InnerType) of
{primitive,bif} ->
emit({Name,"(DefaultValue,Value) ->",nl," "}),
gen_prim_check_call(InnerType,"DefaultValue","Value",
FType),
emit({".",nl,nl});
_ ->
throw({asn1_error,{unknown,type,MaybePrim}})
end
end.
gen_check_sof(Name,SOF,Type) ->
NewName = list2name([sorted,Name]),
emit({Name,"(V1,V2) ->",nl}),
emit({" ",NewName,"(lists:sort(V1),lists:sort(V2)).",nl,nl}),
emit({NewName,"([],[]) ->",nl," true;",nl}),
emit({NewName,"([DV|DVs],[V|Vs]) ->",nl," "}),
InnerType = get_inner(Type#type.def),
case type(InnerType) of
{primitive,bif} ->
gen_prim_check_call(InnerType,"DV","V",Type),
emit({",",nl});
{constructed,bif} ->
emit({list2name([SOF,Name]),"(DV, V),",nl});
#'Externaltypereference'{type=T} ->
emit({list2name([T,check]),"(DV,V),",nl})
end,
emit({" ",NewName,"(DVs,Vs).",nl,nl}).
gen_check_sequence(Name,Components) ->
emit({Name,"(DefaultValue,Value) ->",nl}),
gen_check_sequence(Name,Components,1).
gen_check_sequence(Name,[#'ComponentType'{name=N,typespec=Type}|Cs],Num) ->
InnerType = get_inner(Type#type.def),
% NthDefV = lists:concat(["lists:nth(",Num,",DefaultValue)"]),
NthDefV = ["element(",Num+1,",DefaultValue)"],
% NthV = lists:concat(["lists:nth(",Num,",Value)"]),
NthV = ["element(",Num+1,",Value)"],
gen_check_func_call(Name,Type,InnerType,NthDefV,NthV,N),
case Cs of
[] ->
emit({".",nl,nl});
_ ->
emit({",",nl}),
gen_check_sequence(Name,Cs,Num+1)
end;
gen_check_sequence(_,[],_) ->
ok.
gen_check_choice(Name,CList=[#'ComponentType'{}|_Cs]) ->
emit({Name,"({Id,DefaultValue},{Id,Value}) ->",nl}),
emit({" case Id of",nl}),
gen_check_choice_components(Name,CList,1).
gen_check_choice_components(_,[],_)->
ok;
gen_check_choice_components(Name,[#'ComponentType'{name=N,typespec=Type}|
Cs],Num) ->
Ind6 = " ",
InnerType = get_inner(Type#type.def),
% DefVal = ["element(2,lists:nth(",Num,",DefaultValue))"],
emit({Ind6,N," ->",nl,Ind6}),
gen_check_func_call(Name,Type,InnerType,{var,"defaultValue"},
{var,"value"},N),
case Cs of
[] ->
emit({nl," end.",nl,nl});
_ ->
emit({";",nl}),
gen_check_choice_components(Name,Cs,Num+1)
end.
gen_check_func_call(Name,Type,InnerType,DefVal,Val,N) ->
case type(InnerType) of
{primitive,bif} ->
emit(" "),
gen_prim_check_call(InnerType,DefVal,Val,Type);
#'Externaltypereference'{type=T} ->
emit({" ",list2name([T,check]),"(",DefVal,",",Val,")"});
_ ->
emit({" ",list2name([N,Name]),"(",DefVal,",",Val,")"})
end.
%% VARIOUS GENERATOR STUFF
%% *************************************************
%%**************************************************
mk_var(X) when atom(X) ->
list_to_atom(mk_var(atom_to_list(X)));
mk_var([H|T]) ->
[H-32|T].
%% Since hyphens are allowed in ASN.1 names, it may occur in a
%% variable to. Turn a hyphen into a under-score sign.
un_hyphen_var(X) when atom(X) ->
list_to_atom(un_hyphen_var(atom_to_list(X)));
un_hyphen_var([45|T]) ->
[95|un_hyphen_var(T)];
un_hyphen_var([H|T]) ->
[H|un_hyphen_var(T)];
un_hyphen_var([]) ->
[].
%% Generate value functions ***************
%% ****************************************
%% Generates a function 'V'/0 for each Value V defined in the ASN.1 module
%% the function returns the value in an Erlang representation which can be
%% used as input to the runtime encode functions
gen_value(Value) when record(Value,valuedef) ->
%% io:format(" ~w ",[Value#valuedef.name]),
emit({"'",Value#valuedef.name,"'() ->",nl}),
V = Value#valuedef.value,
emit([{asis,V},".",nl,nl]).
gen_encode_constructed(Erules,Typename,InnerType,D) when record(D,type) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_constructed_",erule(Erules)])),
case InnerType of
'SET' ->
Rtmod:gen_encode_set(Erules,Typename,D),
#'SET'{components=Components} = D#type.def,
gen_types(Erules,Typename,Components);
'SEQUENCE' ->
Rtmod:gen_encode_sequence(Erules,Typename,D),
#'SEQUENCE'{components=Components} = D#type.def,
gen_types(Erules,Typename,Components);
'CHOICE' ->
Rtmod:gen_encode_choice(Erules,Typename,D),
{_,Components} = D#type.def,
gen_types(Erules,Typename,Components);
'SEQUENCE OF' ->
Rtmod:gen_encode_sof(Erules,Typename,InnerType,D),
{_,Type} = D#type.def,
NameSuffix = asn1ct_gen:constructed_suffix(InnerType,Type#type.def),
gen_types(Erules,[NameSuffix|Typename],Type);
'SET OF' ->
Rtmod:gen_encode_sof(Erules,Typename,InnerType,D),
{_,Type} = D#type.def,
NameSuffix = asn1ct_gen:constructed_suffix(InnerType,Type#type.def),
gen_types(Erules,[NameSuffix|Typename],Type);
_ ->
exit({nyi,InnerType})
end;
gen_encode_constructed(Erules,Typename,InnerType,D)
when record(D,typedef) ->
gen_encode_constructed(Erules,Typename,InnerType,D#typedef.typespec).
gen_decode_constructed(Erules,Typename,InnerType,D) when record(D,type) ->
Rtmod = list_to_atom(lists:concat(["asn1ct_constructed_",erule(Erules)])),
asn1ct:step_in_constructed(), %% updates namelist for incomplete
%% partial decode
case InnerType of
'SET' ->
Rtmod:gen_decode_set(Erules,Typename,D);
'SEQUENCE' ->
Rtmod:gen_decode_sequence(Erules,Typename,D);
'CHOICE' ->
Rtmod:gen_decode_choice(Erules,Typename,D);
'SEQUENCE OF' ->
Rtmod:gen_decode_sof(Erules,Typename,InnerType,D);
'SET OF' ->
Rtmod:gen_decode_sof(Erules,Typename,InnerType,D);
_ ->
exit({nyi,InnerType})
end;
gen_decode_constructed(Erules,Typename,InnerType,D) when record(D,typedef) ->
gen_decode_constructed(Erules,Typename,InnerType,D#typedef.typespec).
pgen_exports(Erules,_Module,{Types,Values,_,_,Objects,ObjectSets}) ->
emit({"-export([encoding_rule/0]).",nl}),
case Types of
[] -> ok;
_ ->
emit({"-export([",nl}),
case Erules of
ber ->
gen_exports1(Types,"enc_",2);
ber_bin ->
gen_exports1(Types,"enc_",2);
ber_bin_v2 ->
gen_exports1(Types,"enc_",2);
_ ->
gen_exports1(Types,"enc_",1)
end,
emit({"-export([",nl}),
gen_exports1(Types,"dec_",2),
case Erules of
ber ->
emit({"-export([",nl}),
gen_exports1(Types,"dec_",3);
ber_bin ->
emit({"-export([",nl}),
gen_exports1(Types,"dec_",3);
ber_bin_v2 ->
emit({"-export([",nl}),
gen_exports1(Types,"dec_",2);
_ -> ok
end
end,
case Values of
[] -> ok;
_ ->
emit({"-export([",nl}),
gen_exports1(Values,"",0)
end,
case Objects of
[] -> ok;
_ ->
case erule(Erules) of
per ->
emit({"-export([",nl}),
gen_exports1(Objects,"enc_",3),
emit({"-export([",nl}),
gen_exports1(Objects,"dec_",4);
ber_bin_v2 ->
emit({"-export([",nl}),
gen_exports1(Objects,"enc_",3),
emit({"-export([",nl}),
gen_exports1(Objects,"dec_",3);
_ ->
emit({"-export([",nl}),
gen_exports1(Objects,"enc_",4),
emit({"-export([",nl}),
gen_exports1(Objects,"dec_",4)
end
end,
case ObjectSets of
[] -> ok;
_ ->
emit({"-export([",nl}),
gen_exports1(ObjectSets,"getenc_",2),
emit({"-export([",nl}),
gen_exports1(ObjectSets,"getdec_",2)
end,
emit({"-export([info/0]).",nl}),
gen_partial_inc_decode_exports(),
emit({nl,nl}).
gen_exports1([F1,F2|T],Prefix,Arity) ->
emit({"'",Prefix,F1,"'/",Arity,com,nl}),
gen_exports1([F2|T],Prefix,Arity);
gen_exports1([Flast|_T],Prefix,Arity) ->
emit({"'",Prefix,Flast,"'/",Arity,nl,"]).",nl,nl}).
gen_partial_inc_decode_exports() ->
case {asn1ct:read_config_data(partial_incomplete_decode),
asn1ct:get_gen_state_field(inc_type_pattern)} of
{undefined,_} ->
ok;
{_,undefined} ->
ok;
{Data,_} ->
gen_partial_inc_decode_exports(Data),
emit("-export([decode_part/2]).")
end.
gen_partial_inc_decode_exports([]) ->
ok;
gen_partial_inc_decode_exports([{Name,_,_}|Rest]) ->
emit(["-export([",Name,"/1"]),
gen_partial_inc_decode_exports1(Rest);
gen_partial_inc_decode_exports([_|Rest]) ->
gen_partial_inc_decode_exports(Rest).
gen_partial_inc_decode_exports1([]) ->
emit(["]).",nl]);
gen_partial_inc_decode_exports1([{Name,_,_}|Rest]) ->
emit([", ",Name,"/1"]),
gen_partial_inc_decode_exports1(Rest);
gen_partial_inc_decode_exports1([_|Rest]) ->
gen_partial_inc_decode_exports1(Rest).
pgen_dispatcher(Erules,_Module,{[],_Values,_,_,_Objects,_ObjectSets}) ->
emit(["encoding_rule() ->",nl]),
emit([{asis,Erules},".",nl,nl]);
pgen_dispatcher(Erules,_Module,{Types,_Values,_,_,_Objects,_ObjectSets}) ->
emit(["-export([encode/2,decode/2,encode_disp/2,decode_disp/2]).",nl,nl]),
emit(["encoding_rule() ->",nl]),
emit([" ",{asis,Erules},".",nl,nl]),
Call = case Erules of
per -> "?RT_PER:complete(encode_disp(Type,Data))";
per_bin -> "?RT_PER:complete(encode_disp(Type,Data))";
ber -> "encode_disp(Type,Data)";
ber_bin -> "encode_disp(Type,Data)";
ber_bin_v2 -> "encode_disp(Type,Data)"
end,
EncWrap = case Erules of
ber -> "wrap_encode(Bytes)";
_ -> "Bytes"
end,
emit(["encode(Type,Data) ->",nl,
"case catch ",Call," of",nl,
" {'EXIT',{error,Reason}} ->",nl,
" {error,Reason};",nl,
" {'EXIT',Reason} ->",nl,
" {error,{asn1,Reason}};",nl,
" {Bytes,_Len} ->",nl,
" {ok,",EncWrap,"};",nl,
" Bytes ->",nl,
" {ok,",EncWrap,"}",nl,
"end.",nl,nl]),
case Erules of
ber_bin_v2 ->
emit(["decode(Type,Data0) ->",nl]),
emit(["{Data,_RestBin} = ?RT_BER:decode(Data0",driver_parameter(),"),",nl]);
_ ->
emit(["decode(Type,Data) ->",nl])
end,
DecWrap = case Erules of
ber -> "wrap_decode(Data)";
_ -> "Data"
end,
emit(["case catch decode_disp(Type,",DecWrap,") of",nl,
" {'EXIT',{error,Reason}} ->",nl,
" {error,Reason};",nl,
" {'EXIT',Reason} ->",nl,
" {error,{asn1,Reason}};",nl]),
case Erules of
ber_bin_v2 ->
emit([" Result ->",nl,
" {ok,Result}",nl]);
_ ->
emit([" {X,_Rest} ->",nl,
" {ok,X};",nl,
" {X,_Rest,_Len} ->",nl,
" {ok,X}",nl])
end,
emit(["end.",nl,nl]),
gen_decode_partial_incomplete(Erules),
case Types of
[] -> ok;
_ ->
case Erules of
ber ->
gen_dispatcher(Types,"encode_disp","enc_",",[]"),
gen_dispatcher(Types,"decode_disp","dec_",",mandatory");
ber_bin ->
gen_dispatcher(Types,"encode_disp","enc_",",[]"),
gen_dispatcher(Types,"decode_disp","dec_",",mandatory");
ber_bin_v2 ->
gen_dispatcher(Types,"encode_disp","enc_",""),
gen_dispatcher(Types,"decode_disp","dec_",""),
gen_partial_inc_dispatcher();
_PerOrPer_bin ->
gen_dispatcher(Types,"encode_disp","enc_",""),
gen_dispatcher(Types,"decode_disp","dec_",",mandatory")
end,
emit([nl])
end,
case Erules of
ber ->
gen_wrapper();
_ -> ok
end,
emit({nl,nl}).
gen_decode_partial_incomplete(Erule) when Erule == ber;Erule==ber_bin;
Erule==ber_bin_v2 ->
case {asn1ct:read_config_data(partial_incomplete_decode),
asn1ct:get_gen_state_field(inc_type_pattern)} of
{undefined,_} ->
ok;
{_,undefined} ->
ok;
_ ->
case Erule of
ber_bin_v2 ->
EmitCaseClauses =
fun() ->
emit([" {'EXIT',{error,Reason}} ->",nl,
" {error,Reason};",nl,
" {'EXIT',Reason} ->",nl,
" {error,{asn1,Reason}};",nl,
" Result ->",nl,
" {ok,Result}",nl,
" end.",nl,nl])
end,
emit(["decode_partial_incomplete(Type,Data0,",
"Pattern) ->",nl]),
emit([" {Data,_RestBin} =",nl,
" ?RT_BER:decode_primitive_",
"incomplete(Pattern,Data0),",nl,
" case catch decode_partial_inc_disp(Type,",
"Data) of",nl]),
EmitCaseClauses(),
emit(["decode_part(Type,Data0) ->",nl,
" {Data,_RestBin} = ?RT_BER:decode(Data0),",nl,
" case catch decode_inc_disp(Type,Data) of",nl]),
EmitCaseClauses();
_ -> ok % add later
end
end;
gen_decode_partial_incomplete(_Erule) ->
ok.
gen_partial_inc_dispatcher() ->
case {asn1ct:read_config_data(partial_incomplete_decode),
asn1ct:get_gen_state_field(inc_type_pattern)} of
{undefined,_} ->
ok;
{_,undefined} ->
ok;
{Data,_} ->
gen_partial_inc_dispatcher(Data)
end.
gen_partial_inc_dispatcher([{_FuncName,TopType,_Pattern}|Rest]) ->
emit(["decode_partial_inc_disp(",{asis,TopType},",Data) ->",nl,
" ",{asis,list_to_atom(lists:concat([dec,"-inc-",TopType]))},
"(Data);",nl]),
gen_partial_inc_dispatcher(Rest);
gen_partial_inc_dispatcher([]) ->
emit(["decode_partial_inc_disp(Type,_Data) ->",nl,
" exit({error,{asn1,{undefined_type,Type}}}).",nl]).
driver_parameter() ->
Options = get(encoding_options),
case lists:member(driver,Options) of
true ->
",driver";
_ -> ""
end.
gen_wrapper() ->
emit(["wrap_encode(Bytes) when list(Bytes) ->",nl,
" binary_to_list(list_to_binary(Bytes));",nl,
"wrap_encode(Bytes) when binary(Bytes) ->",nl,
" binary_to_list(Bytes);",nl,
"wrap_encode(Bytes) -> Bytes.",nl,nl]),
emit(["wrap_decode(Bytes) when list(Bytes) ->",nl,
" list_to_binary(Bytes);",nl,
"wrap_decode(Bytes) -> Bytes.",nl]).
gen_dispatcher([F1,F2|T],FuncName,Prefix,ExtraArg) ->
emit([FuncName,"('",F1,"',Data) -> '",Prefix,F1,"'(Data",ExtraArg,")",";",nl]),
gen_dispatcher([F2|T],FuncName,Prefix,ExtraArg);
gen_dispatcher([Flast|_T],FuncName,Prefix,ExtraArg) ->
emit([FuncName,"('",Flast,"',Data) -> '",Prefix,Flast,"'(Data",ExtraArg,")",";",nl]),
emit([FuncName,"(","Type",",_Data) -> exit({error,{asn1,{undefined_type,Type}}}).",nl,nl,nl]).
pgen_info(_Erules,Module) ->
Options = get(encoding_options),
emit({"info() ->",nl,
" [{vsn,'",asn1ct:vsn(),"'},",
" {module,'",Module,"'},",
" {options,",io_lib:format("~p",[Options]),"}].",nl}).
open_hrl(OutFile,Module) ->
File = lists:concat([OutFile,".hrl"]),
Fid = fopen(File,write),
put(gen_file_out,Fid),
gen_hrlhead(Module).
%% EMIT functions ************************
%% ***************************************
% debug generation
demit(Term) ->
case get(asndebug) of
true -> emit(Term);
_ ->true
end.
% always generation
emit({external,_M,T}) ->
emit(T);
emit({prev,Variable}) when atom(Variable) ->
emit({var,asn1ct_name:prev(Variable)});
emit({next,Variable}) when atom(Variable) ->
emit({var,asn1ct_name:next(Variable)});
emit({curr,Variable}) when atom(Variable) ->
emit({var,asn1ct_name:curr(Variable)});
emit({var,Variable}) when atom(Variable) ->
[Head|V] = atom_to_list(Variable),
emit([Head-32|V]);
emit({var,Variable}) ->
[Head|V] = Variable,
emit([Head-32|V]);
emit({asis,What}) ->
format(get(gen_file_out),"~w",[What]);
emit(nl) ->
nl(get(gen_file_out));
emit(com) ->
emit(",");
emit(tab) ->
put_chars(get(gen_file_out)," ");
emit(What) when integer(What) ->
put_chars(get(gen_file_out),integer_to_list(What));
emit(What) when list(What), integer(hd(What)) ->
put_chars(get(gen_file_out),What);
emit(What) when atom(What) ->
put_chars(get(gen_file_out),atom_to_list(What));
emit(What) when tuple(What) ->
emit_parts(tuple_to_list(What));
emit(What) when list(What) ->
emit_parts(What);
emit(X) ->
exit({'cant emit ',X}).
emit_parts([]) -> true;
emit_parts([H|T]) ->
emit(H),
emit_parts(T).
format(undefined,X,Y) ->
io:format(X,Y);
format(X,Y,Z) ->
io:format(X,Y,Z).
nl(undefined) -> io:nl();
nl(X) -> io:nl(X).
put_chars(undefined,X) ->
io:put_chars(X);
put_chars(Y,X) ->
io:put_chars(Y,X).
fopen(F, Mode) ->
case file:open(F, [Mode]) of
{ok, Fd} ->
Fd;
{error, Reason} ->
io:format("** Can't open file ~p ~n", [F]),
exit({error,Reason})
end.
pgen_hrl(Erules,Module,TypeOrVal,_Indent) ->
put(currmod,Module),
{Types,Values,Ptypes,_,_,_} = TypeOrVal,
Ret =
case pgen_hrltypes(Erules,Module,Ptypes++Types,0) of
0 ->
case Values of
[] ->
0;
_ ->
open_hrl(get(outfile),get(currmod)),
pgen_macros(Erules,Module,Values),
1
end;
X ->
pgen_macros(Erules,Module,Values),
X
end,
case Ret of
0 ->
0;
Y ->
Fid = get(gen_file_out),
file:close(Fid),
io:format("--~p--~n",
[{generated,lists:concat([get(outfile),".hrl"])}]),
Y
end.
pgen_macros(_,_,[]) ->
true;
pgen_macros(Erules,Module,[H|T]) ->
Valuedef = asn1_db:dbget(Module,H),
gen_macro(Valuedef),
pgen_macros(Erules,Module,T).
pgen_hrltypes(_,_,[],NumRecords) ->
NumRecords;
pgen_hrltypes(Erules,Module,[H|T],NumRecords) ->
% io:format("records = ~p~n",NumRecords),
Typedef = asn1_db:dbget(Module,H),
AddNumRecords = gen_record(Typedef,NumRecords),
pgen_hrltypes(Erules,Module,T,NumRecords+AddNumRecords).
%% Generates a macro for value Value defined in the ASN.1 module
gen_macro(Value) when record(Value,valuedef) ->
emit({"-define('",Value#valuedef.name,"', ",
{asis,Value#valuedef.value},").",nl}).
%% Generate record functions **************
%% Generates an Erlang record for each named and unnamed SEQUENCE and SET in the ASN.1
%% module. If no SEQUENCE or SET is found there is no .hrl file generated
gen_record(Tdef,NumRecords) when record(Tdef,typedef) ->
Name = [Tdef#typedef.name],
Type = Tdef#typedef.typespec,
gen_record(type,Name,Type,NumRecords);
gen_record(Tdef,NumRecords) when record(Tdef,ptypedef) ->
Name = [Tdef#ptypedef.name],
Type = Tdef#ptypedef.typespec,
gen_record(ptype,Name,Type,NumRecords).
gen_record(TorPtype,Name,[#'ComponentType'{name=Cname,typespec=Type}|T],Num) ->
Num2 = gen_record(TorPtype,[Cname|Name],Type,Num),
gen_record(TorPtype,Name,T,Num2);
gen_record(TorPtype,Name,{Clist1,Clist2},Num) when list(Clist1), list(Clist2) ->
gen_record(TorPtype,Name,Clist1++Clist2,Num);
gen_record(TorPtype,Name,[_|T],Num) -> % skip EXTENSIONMARK
gen_record(TorPtype,Name,T,Num);
gen_record(_TorPtype,_Name,[],Num) ->
Num;
gen_record(TorPtype,Name,Type,Num) when record(Type,type) ->
Def = Type#type.def,
Rec = case Def of
Seq when record(Seq,'SEQUENCE') ->
case Seq#'SEQUENCE'.pname of
false ->
{record,Seq#'SEQUENCE'.components};
_Pname when TorPtype == type ->
false;
_ ->
{record,Seq#'SEQUENCE'.components}
end;
Set when record(Set,'SET') ->
case Set#'SET'.pname of
false ->
{record,Set#'SET'.components};
_Pname when TorPtype == type ->
false;
_ ->
{record,Set#'SET'.components}
end;
% {'SET',{_,_CompList}} ->
% {record,_CompList};
{'CHOICE',_CompList} -> {inner,Def};
{'SEQUENCE OF',_CompList} -> {['SEQOF'|Name],Def};
{'SET OF',_CompList} -> {['SETOF'|Name],Def};
_ -> false
end,
case Rec of
false -> Num;
{record,CompList} ->
case Num of
0 -> open_hrl(get(outfile),get(currmod));
_ -> true
end,
emit({"-record('",list2name(Name),"',{",nl}),
RootList = case CompList of
_ when list(CompList) ->
CompList;
{_Rl,_} -> _Rl
end,
gen_record2(Name,'SEQUENCE',RootList),
NewCompList =
case CompList of
{CompList1,[]} ->
emit({"}). % with extension mark",nl,nl}),
CompList1;
{Tr,ExtensionList2} ->
case Tr of
[] -> true;
_ -> emit({",",nl})
end,
emit({"%% with extensions",nl}),
gen_record2(Name, 'SEQUENCE', ExtensionList2,
"", ext),
emit({"}).",nl,nl}),
Tr ++ ExtensionList2;
_ ->
emit({"}).",nl,nl}),
CompList
end,
gen_record(TorPtype,Name,NewCompList,Num+1);
{inner,{'CHOICE', CompList}} ->
gen_record(TorPtype,Name,CompList,Num);
{NewName,{_, CompList}} ->
gen_record(TorPtype,NewName,CompList,Num)
end;
gen_record(_,_,_,NumRecords) -> % skip CLASS etc for now.
NumRecords.
gen_head(Erules,Mod,Hrl) ->
{Rtmac,Rtmod} = case Erules of
per ->
emit({"%% Generated by the Erlang ASN.1 PER-"
"compiler version:",asn1ct:vsn(),nl}),
{"RT_PER",?RT_PER};
ber ->
emit({"%% Generated by the Erlang ASN.1 BER-"
"compiler version:",asn1ct:vsn(),nl}),
{"RT_BER",?RT_BER_BIN};
per_bin ->
emit({"%% Generated by the Erlang ASN.1 BER-"
"compiler version, utilizing bit-syntax:",
asn1ct:vsn(),nl}),
%% temporary code to enable rt2ct optimization
Options = get(encoding_options),
case lists:member(optimize,Options) of
true -> {"RT_PER","asn1rt_per_bin_rt2ct"};
_ ->
{"RT_PER",?RT_PER_BIN}
end;
ber_bin ->
emit({"%% Generated by the Erlang ASN.1 BER-"
"compiler version, utilizing bit-syntax:",
asn1ct:vsn(),nl}),
{"RT_BER",?RT_BER_BIN};
ber_bin_v2 ->
emit({"%% Generated by the Erlang ASN.1 BER_V2-"
"compiler version, utilizing bit-syntax:",
asn1ct:vsn(),nl}),
{"RT_BER","asn1rt_ber_bin_v2"}
end,
emit({"%% Purpose: encoder and decoder to the types in mod ",Mod,nl,nl}),
emit({"-module('",Mod,"').",nl}),
put(currmod,Mod),
%emit({"-compile(export_all).",nl}),
case Hrl of
0 -> true;
_ ->
emit({"-include(\"",Mod,".hrl\").",nl})
end,
emit(["-define('",Rtmac,"',",Rtmod,").",nl]).
gen_hrlhead(Mod) ->
emit({"%% Generated by the Erlang ASN.1 compiler version:",asn1ct:vsn(),nl}),
emit({"%% Purpose: Erlang record definitions for each named and unnamed",nl}),
emit({"%% SEQUENCE and SET, and macro definitions for each value",nl}),
emit({"%% definition,in module ",Mod,nl,nl}),
emit({nl,nl}).
gen_record2(Name,SeqOrSet,Comps) ->
gen_record2(Name,SeqOrSet,Comps,"",noext).
gen_record2(_Name,_SeqOrSet,[],_Com,_Extension) ->
true;
gen_record2(Name,SeqOrSet,[{'EXTENSIONMARK',_,_}|T],Com,Extension) ->
gen_record2(Name,SeqOrSet,T,Com,Extension);
gen_record2(_Name,_SeqOrSet,[H],Com,Extension) ->
#'ComponentType'{name=Cname} = H,
emit(Com),
emit({asis,Cname}),
gen_record_default(H, Extension);
gen_record2(Name,SeqOrSet,[H|T],Com, Extension) ->
#'ComponentType'{name=Cname} = H,
emit(Com),
emit({asis,Cname}),
gen_record_default(H, Extension),
% emit(", "),
gen_record2(Name,SeqOrSet,T,", ", Extension).
%gen_record_default(C, ext) ->
% emit(" = asn1_NOEXTVALUE");
gen_record_default(#'ComponentType'{prop='OPTIONAL'}, _)->
emit(" = asn1_NOVALUE");
gen_record_default(#'ComponentType'{prop={'DEFAULT',_}}, _)->
emit(" = asn1_DEFAULT");
gen_record_default(_, _) ->
true.
gen_check_call(TopType,Cname,Type,InnerType,WhatKind,DefaultValue,Element) ->
case WhatKind of
{primitive,bif} ->
gen_prim_check_call(InnerType,DefaultValue,Element,Type);
#'Externaltypereference'{module=M,type=T} ->
%% generate function call
Name = list2name([T,check]),
emit({"'",Name,"'(",DefaultValue,", ",Element,")"}),
%% insert in ets table and do look ahead check
Typedef = asn1_db:dbget(M,T),
RefType = Typedef#typedef.typespec,
InType = asn1ct_gen:get_inner(RefType#type.def),
case insert_once(check_functions,{Name,RefType}) of
true ->
lookahead_innertype([T],InType,RefType);
% case asn1ct_gen:type(InType) of
% {constructed,bif} ->
% lookahead_innertype([T],InType,RefType);
% #'Externaltypereference'{type=TNew} ->
% lookahead_innertype([TNew],InType,RefType);
% _ ->
% ok
% end;
_ ->
ok
end;
{constructed,bif} ->
NameList = [Cname|TopType],
Name = list2name(NameList ++ [check]),
emit({"'",Name,"'(",DefaultValue,", ",Element,")"}),
ets:insert(check_functions,{Name,Type}),
%% Must look for check functions in InnerType,
%% that may be referenced or internal defined
%% constructed types not used elsewhere.
lookahead_innertype(NameList,InnerType,Type)
end.
gen_prim_check_call(PrimType,DefaultValue,Element,Type) ->
case unify_if_string(PrimType) of
'BOOLEAN' ->
emit({"asn1rt_check:check_bool(",DefaultValue,", ",
Element,")"});
'INTEGER' ->
NNL =
case Type#type.def of
{_,NamedNumberList} -> NamedNumberList;
_ -> []
end,
emit({"asn1rt_check:check_int(",DefaultValue,", ",
Element,", ",{asis,NNL},")"});
'BIT STRING' ->
{_,NBL} = Type#type.def,
emit({"asn1rt_check:check_bitstring(",DefaultValue,", ",
Element,", ",{asis,NBL},")"});
'OCTET STRING' ->
emit({"asn1rt_check:check_octetstring(",DefaultValue,", ",
Element,")"});
'NULL' ->
emit({"asn1rt_check:check_null(",DefaultValue,", ",
Element,")"});
'OBJECT IDENTIFIER' ->
emit({"asn1rt_check:check_objectidentifier(",DefaultValue,
", ",Element,")"});
'ObjectDescriptor' ->
emit({"asn1rt_check:check_objectdescriptor(",DefaultValue,
", ",Element,")"});
'REAL' ->
emit({"asn1rt_check:check_real(",DefaultValue,
", ",Element,")"});
'ENUMERATED' ->
{_,Enumerations} = Type#type.def,
emit({"asn1rt_check:check_enum(",DefaultValue,
", ",Element,", ",{asis,Enumerations},")"});
restrictedstring ->
emit({"asn1rt_check:check_restrictedstring(",DefaultValue,
", ",Element,")"})
end.
%% lokahead_innertype/3 traverses Type and checks if check functions
%% have to be generated, i.e. for all constructed or referenced types.
lookahead_innertype(Name,'SEQUENCE',Type) ->
Components = (Type#type.def)#'SEQUENCE'.components,
lookahead_components(Name,Components);
lookahead_innertype(Name,'SET',Type) ->
Components = (Type#type.def)#'SET'.components,
lookahead_components(Name,Components);
lookahead_innertype(Name,'CHOICE',Type) ->
{_,Components} = Type#type.def,
lookahead_components(Name,Components);
lookahead_innertype(Name,'SEQUENCE OF',SeqOf) ->
lookahead_sof(Name,'SEQOF',SeqOf);
lookahead_innertype(Name,'SET OF',SeqOf) ->
lookahead_sof(Name,'SETOF',SeqOf);
lookahead_innertype(_Name,#'Externaltypereference'{module=M,type=T},_) ->
Typedef = asn1_db:dbget(M,T),
RefType = Typedef#typedef.typespec,
InType = asn1ct_gen:get_inner(RefType#type.def),
case type(InType) of
{constructed,bif} ->
NewName = list2name([T,check]),
case insert_once(check_functions,{NewName,RefType}) of
true ->
lookahead_innertype([T],InType,RefType);
_ ->
ok
end;
#'Externaltypereference'{} ->
NewName = list2name([T,check]),
case insert_once(check_functions,{NewName,RefType}) of
true ->
lookahead_innertype([T],InType,RefType);
_ ->
ok
end;
_ ->
ok
end;
% case insert_once(check_functions,{list2name(Name++[check]),Type}) of
% true ->
% InnerType = asn1ct_gen:get_inner(Type#type.def),
% case asn1ct_gen:type(InnerType) of
% {constructed,bif} ->
% lookahead_innertype([T],InnerType,Type);
% #'Externaltypereference'{type=TNew} ->
% lookahead_innertype([TNew],InnerType,Type);
% _ ->
% ok
% end;
% _ ->
% ok
% end;
lookahead_innertype(_,_,_) ->
ok.
lookahead_components(_,[]) -> ok;
lookahead_components(Name,[C|Cs]) ->
#'ComponentType'{name=Cname,typespec=Type} = C,
InType = asn1ct_gen:get_inner(Type#type.def),
case asn1ct_gen:type(InType) of
{constructed,bif} ->
case insert_once(check_functions,
{list2name([Cname|Name] ++ [check]),Type}) of
true ->
lookahead_innertype([Cname|Name],InType,Type);
_ ->
ok
end;
#'Externaltypereference'{module=RefMod,type=RefName} ->
Typedef = asn1_db:dbget(RefMod,RefName),
RefType = Typedef#typedef.typespec,
case insert_once(check_functions,{list2name([RefName,check]),
RefType}) of
true ->
lookahead_innertype([RefName],InType,RefType);
_ ->
ok
end;
_ ->
ok
end,
lookahead_components(Name,Cs).
lookahead_sof(Name,SOF,SOFType) ->
Type = case SOFType#type.def of
{_,_Type} -> _Type;
_Type -> _Type
end,
InnerType = asn1ct_gen:get_inner(Type#type.def),
case asn1ct_gen:type(InnerType) of
{constructed,bif} ->
%% this is if a constructed type is defined in
%% the SEQUENCE OF type
NameList = [SOF|Name],
insert_once(check_functions,
{list2name(NameList ++ [check]),Type}),
lookahead_innertype(NameList,InnerType,Type);
#'Externaltypereference'{module=M,type=T} ->
Typedef = asn1_db:dbget(M,T),
RefType = Typedef#typedef.typespec,
InType = get_inner(RefType#type.def),
case insert_once(check_functions,
{list2name([T,check]),RefType}) of
true ->
lookahead_innertype([T],InType,RefType);
_ ->
ok
end;
_ ->
ok
end.
insert_once(Table,Object) ->
case ets:lookup(Table,element(1,Object)) of
[] ->
ets:insert(Table,Object); %returns true
_ -> false
end.
unify_if_string(PrimType) ->
case PrimType of
'NumericString' ->
restrictedstring;
'PrintableString' ->
restrictedstring;
'TeletexString' ->
restrictedstring;
'VideotexString' ->
restrictedstring;
'IA5String' ->
restrictedstring;
'UTCTime' ->
restrictedstring;
'GeneralizedTime' ->
restrictedstring;
'GraphicString' ->
restrictedstring;
'VisibleString' ->
restrictedstring;
'GeneralString' ->
restrictedstring;
'UniversalString' ->
restrictedstring;
'BMPString' ->
restrictedstring;
Other -> Other
end.
get_inner(A) when atom(A) -> A;
get_inner(Ext) when record(Ext,'Externaltypereference') -> Ext;
get_inner(Tref) when record(Tref,typereference) -> Tref;
get_inner({fixedtypevaluefield,_,Type}) ->
if
record(Type,type) ->
get_inner(Type#type.def);
true ->
get_inner(Type)
end;
get_inner({typefield,TypeName}) ->
TypeName;
get_inner(#'ObjectClassFieldType'{type=Type}) ->
% get_inner(Type);
Type;
get_inner(T) when tuple(T) ->
case element(1,T) of
Tuple when tuple(Tuple),element(1,Tuple) == objectclass ->
case catch(lists:last(element(2,T))) of
{valuefieldreference,FieldName} ->
get_fieldtype(element(2,Tuple),FieldName);
{typefieldreference,FieldName} ->
get_fieldtype(element(2,Tuple),FieldName);
{'EXIT',Reason} ->
throw({asn1,{'internal error in get_inner/1',Reason}})
end;
_ -> element(1,T)
end.
type(X) when record(X,'Externaltypereference') ->
X;
type(X) when record(X,typereference) ->
X;
type('ASN1_OPEN_TYPE') ->
'ASN1_OPEN_TYPE';
type({fixedtypevaluefield,_Name,Type}) when record(Type,type) ->
type(get_inner(Type#type.def));
type({typefield,_}) ->
'ASN1_OPEN_TYPE';
type(X) ->
%% io:format("asn1_types:type(~p)~n",[X]),
case catch type2(X) of
{'EXIT',_} ->
{notype,X};
Normal ->
Normal
end.
type2(X) ->
case prim_bif(X) of
true ->
{primitive,bif};
false ->
case construct_bif(X) of
true ->
{constructed,bif};
false ->
{undefined,user}
end
end.
prim_bif(X) ->
lists:member(X,['INTEGER' ,
'ENUMERATED',
'OBJECT IDENTIFIER',
'ANY',
'NULL',
'BIT STRING' ,
'OCTET STRING' ,
'ObjectDescriptor',
'NumericString',
'TeletexString',
'VideotexString',
'UTCTime',
'GeneralizedTime',
'GraphicString',
'VisibleString',
'GeneralString',
'PrintableString',
'IA5String',
'UniversalString',
'BMPString',
'ENUMERATED',
'BOOLEAN']).
construct_bif(T) ->
lists:member(T,['SEQUENCE' ,
'SEQUENCE OF' ,
'CHOICE' ,
'SET' ,
'SET OF']).
def_to_tag(#tag{class=Class,number=Number}) ->
{Class,Number};
def_to_tag(#'ObjectClassFieldType'{type=Type}) ->
case Type of
T when tuple(T),element(1,T)==fixedtypevaluefield ->
{'UNIVERSAL',get_inner(Type)};
_ ->
[]
end;
def_to_tag(Def) ->
{'UNIVERSAL',get_inner(Def)}.
%% Information Object Class
type_from_object(X) ->
case (catch lists:last(element(2,X))) of
{'EXIT',_} ->
{notype,X};
Normal ->
Normal
end.
get_fieldtype([],_FieldName)->
{no_type,no_name};
get_fieldtype([Field|Rest],FieldName) ->
case element(2,Field) of
FieldName ->
case element(1,Field) of
fixedtypevaluefield ->
{element(1,Field),FieldName,element(3,Field)};
_ ->
{element(1,Field),FieldName}
end;
_ ->
get_fieldtype(Rest,FieldName)
end.
get_fieldcategory([],_FieldName) ->
no_cat;
get_fieldcategory([Field|Rest],FieldName) ->
case element(2,Field) of
FieldName ->
element(1,Field);
_ ->
get_fieldcategory(Rest,FieldName)
end.
get_typefromobject(Type) when record(Type,type) ->
case Type#type.def of
{{objectclass,_,_},TypeFrObj} when list(TypeFrObj) ->
{_,FieldName} = lists:last(TypeFrObj),
FieldName;
_ ->
{no_field}
end.
get_classfieldcategory(Type,FieldName) ->
case (catch Type#type.def) of
{{obejctclass,Fields,_},_} ->
get_fieldcategory(Fields,FieldName);
{'EXIT',_} ->
no_cat;
_ ->
no_cat
end.
%% Information Object Class
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Convert a list of name parts to something that can be output by emit
%%
%% used to output function names in generated code.
list2name(L) ->
NewL = list2name1(L),
lists:concat(lists:reverse(NewL)).
list2name1([{ptype,H1},H2|T]) ->
[H1,"_",list2name([H2|T])];
list2name1([H1,H2|T]) ->
[H1,"_",list2name([H2|T])];
list2name1([{ptype,H}|_T]) ->
[H];
list2name1([H|_T]) ->
[H];
list2name1([]) ->
[].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Convert a list of name parts to something that can be output by emit
%% stops at {ptype,Pname} i.e Pname whill be the first part of the name
%% used to output record names in generated code.
list2rname(L) ->
NewL = list2rname1(L),
lists:concat(lists:reverse(NewL)).
list2rname1([{ptype,H1},_H2|_T]) ->
[H1];
list2rname1([H1,H2|T]) ->
[H1,"_",list2name([H2|T])];
list2rname1([{ptype,H}|_T]) ->
[H];
list2rname1([H|_T]) ->
[H];
list2rname1([]) ->
[].
constructed_suffix(_,#'SEQUENCE'{pname=Ptypename}) when Ptypename =/= false ->
{ptype, Ptypename};
constructed_suffix(_,#'SET'{pname=Ptypename}) when Ptypename =/= false ->
{ptype,Ptypename};
constructed_suffix('SEQUENCE OF',_) ->
'SEQOF';
constructed_suffix('SET OF',_) ->
'SETOF'.
erule(ber) ->
ber;
erule(ber_bin) ->
ber;
erule(ber_bin_v2) ->
ber_bin_v2;
erule(per) ->
per;
erule(per_bin) ->
per.
wrap_ber(ber) ->
ber_bin;
wrap_ber(Erule) ->
Erule.
rt2ct_suffix() ->
Options = get(encoding_options),
case {lists:member(optimize,Options),lists:member(per_bin,Options)} of
{true,true} -> "_rt2ct";
_ -> ""
end.
rt2ct_suffix(per_bin) ->
Options = get(encoding_options),
case lists:member(optimize,Options) of
true -> "_rt2ct";
_ -> ""
end;
rt2ct_suffix(_) -> "".
get_constraint(C,Key) ->
case lists:keysearch(Key,1,C) of
false ->
no;
{value,{_,V}} ->
V;
{value,Cnstr} ->
Cnstr
end.
