diff options
Diffstat (limited to 'lib/asn1/src/asn1ct_constructed_per.erl')
| -rw-r--r-- | lib/asn1/src/asn1ct_constructed_per.erl | 573 |
1 files changed, 250 insertions, 323 deletions
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl index aa5ee18c80..efb55cf015 100644 --- a/lib/asn1/src/asn1ct_constructed_per.erl +++ b/lib/asn1/src/asn1ct_constructed_per.erl @@ -143,40 +143,21 @@ gen_encode_constructed(Erule,Typename,D) when is_record(D,type) -> uniqueclassfield=UniqueFieldName, valueindex=ValueIndex } -> %% N is index of attribute that determines constraint - {{ObjSetMod,ObjSetName},OSDef} = - case ObjectSet of - {Module,OSName} -> - {{{asis,Module},OSName},asn1_db:dbget(Module,OSName)}; - OSName -> - {{"?MODULE",OSName},asn1_db:dbget(get(currmod),OSName)} - end, - case (OSDef#typedef.typespec)#'ObjectSet'.gen of + {Module,ObjSetName} = ObjectSet, + #typedef{typespec=#'ObjectSet'{gen=Gen}} = + asn1_db:dbget(Module, ObjSetName), + case Gen of true -> ObjectEncode = asn1ct_gen:un_hyphen_var(lists:concat(['Obj',AttrN])), - emit([ObjectEncode," = ",nl]), - emit([" ",ObjSetMod,":'getenc_",ObjSetName,"'(", - {asis,UniqueFieldName},", ",nl]), - El = make_element(N+1,asn1ct_gen:mk_var(asn1ct_name:curr(val))), - - Length = fun(X,_LFun) when is_atom(X) -> - length(atom_to_list(X)); - (X,_LFun) when is_list(X) -> - length(X); - ({X1,X2},LFun) -> - LFun(X1,LFun) + LFun(X2,LFun) - end, - Indent = 12 + Length(ObjectSet,Length), - case ValueIndex of - [] -> - emit([indent(Indent),El,"),",nl]); - _ -> - emit([indent(Indent),"value_match(", - {asis,ValueIndex},",",El,")),",nl]), - notice_value_match() - end, + El = make_element(N+1, asn1ct_gen:mk_var(asn1ct_name:curr(val))), + ValueMatch = value_match(ValueIndex, El), + emit([ObjectEncode," =",nl, + " ",{asis,Module},":'getenc_",ObjSetName,"'(", + {asis,UniqueFieldName},", ",nl, + " ",ValueMatch,"),",nl]), {AttrN,ObjectEncode}; - _ -> + false -> false end; _ -> @@ -227,7 +208,6 @@ gen_decode_constructed(Erule, Typename, #type{}=D) -> Imm0 = gen_dec_constructed_imm(Erule, Typename, #type{}=D), Imm = opt_imm(Imm0), asn1ct_name:start(), - asn1ct_name:clear(), emit_gen_dec_imm(Imm), emit([".",nl,nl]). @@ -365,14 +345,10 @@ gen_dec_constructed_imm_2(Typename, CompList, {[{ObjSet,LeadingAttr,Term}],ListOfOpenTypes} -> DecObj = asn1ct_gen:un_hyphen_var(lists:concat(['DecObj',LeadingAttr,Term])), ValueMatch = value_match(ValueIndex,Term), - {ObjSetMod,ObjSetName} = - case ObjSet of - {M,O} -> {{asis,M},O}; - _ -> {"?MODULE",ObjSet} - end, - emit({DecObj," =",nl," ",ObjSetMod,":'getdec_",ObjSetName,"'(", -% {asis,UniqueFName},", ",Term,"),",nl}), - {asis,UniqueFName},", ",ValueMatch,"),",nl}), + {ObjSetMod,ObjSetName} = ObjSet, + emit([DecObj," =",nl, + " ",{asis,ObjSetMod},":'getdec_",ObjSetName,"'(", + {asis,UniqueFName},", ",ValueMatch,"),",nl]), gen_dec_listofopentypes(DecObj,ListOfOpenTypes,false) end, %% we don't return named lists any more Cnames = mkcnamelist(CompList), @@ -489,7 +465,6 @@ gen_encode_choice(Erule,Typename,D) when is_record(D,type) -> gen_decode_choice(Erules,Typename,D) when is_record(D,type) -> asn1ct_name:start(), - asn1ct_name:clear(), asn1ct_name:new(bytes), {'CHOICE',CompList} = D#type.def, Ext = extensible_enc(CompList), @@ -504,12 +479,8 @@ gen_encode_sof(Erule,Typename,SeqOrSetOf,D) when is_record(D,type) -> asn1ct_name:start(), {_SeqOrSetOf,ComponentType} = D#type.def, emit({"[",nl}), - SizeConstraint = - case asn1ct_gen:get_constraint(D#type.constraint, - 'SizeConstraint') of - no -> undefined; - Range -> Range - end, + SizeConstraint = asn1ct_imm:effective_constraint(bitstring, + D#type.constraint), ObjFun = case D#type.tablecinf of [{objfun,_}|_R] -> @@ -521,13 +492,7 @@ gen_encode_sof(Erule,Typename,SeqOrSetOf,D) when is_record(D,type) -> emit({indent(3),"'enc_",asn1ct_gen:list2name(Typename), "_components'(Val",ObjFun,", [])"}), emit({nl,"].",nl}), - NewComponentType = - case ComponentType#type.def of - {'ENUMERATED',_,Component}-> - ComponentType#type{def={'ENUMERATED',Component}}; - _ -> ComponentType - end, - gen_encode_sof_components(Erule,Typename,SeqOrSetOf,NewComponentType). + gen_encode_sof_components(Erule, Typename, SeqOrSetOf, ComponentType). %% Logic copied from asn1_per_bin_rt2ct:encode_constrained_number @@ -565,7 +530,7 @@ gen_encode_length(per, {Lb,Ub}) when Ub =< 65535, Lb >= 0 -> gen_encode_length(Erules, SizeConstraint) -> emit([nl,indent(3), case SizeConstraint of - undefined -> + no -> {call,Erules,encode_length,["length(Val)"]}; _ -> {call,Erules,encode_length, @@ -576,12 +541,8 @@ gen_encode_length(Erules, SizeConstraint) -> gen_decode_sof(Erules,Typename,SeqOrSetOf,D) when is_record(D,type) -> asn1ct_name:start(), {_SeqOrSetOf,ComponentType} = D#type.def, - SizeConstraint = - case asn1ct_gen:get_constraint(D#type.constraint, - 'SizeConstraint') of - no -> undefined; - Range -> Range - end, + SizeConstraint = asn1ct_imm:effective_constraint(bitstring, + D#type.constraint), ObjFun = case D#type.tablecinf of [{objfun,_}|_R] -> @@ -593,13 +554,7 @@ gen_decode_sof(Erules,Typename,SeqOrSetOf,D) when is_record(D,type) -> emit([",",nl, "'dec_",asn1ct_gen:list2name(Typename), "_components'(",Num,", ",Buf,ObjFun,", []).",nl,nl]), - NewComponentType = - case ComponentType#type.def of - {'ENUMERATED',_,Component}-> - ComponentType#type{def={'ENUMERATED',Component}}; - _ -> ComponentType - end, - gen_decode_sof_components(Erules,Typename,SeqOrSetOf,NewComponentType). + gen_decode_sof_components(Erules, Typename, SeqOrSetOf, ComponentType). is_aligned(per) -> true; is_aligned(uper) -> false. @@ -629,10 +584,9 @@ gen_encode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> Conttype = asn1ct_gen:get_inner(Cont#type.def), Currmod = get(currmod), - Ctgenmod = asn1ct_gen:ct_gen_module(Erule), case asn1ct_gen:type(Conttype) of {primitive,bif} -> - gen_encode_prim_wrapper(Ctgenmod,Erule,Cont,false,"H"); + asn1ct_gen_per:gen_encode_prim(Erule, Cont, "H"); {constructed,bif} -> NewTypename = [Constructed_Suffix|Typename], emit({"'enc_",asn1ct_gen:list2name(NewTypename),"'(H", @@ -642,9 +596,9 @@ gen_encode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> #'Externaltypereference'{module=EMod,type=EType} -> emit({"'",EMod,"':'enc_",EType,"'(H)",nl,nl}); 'ASN1_OPEN_TYPE' -> - gen_encode_prim_wrapper(Ctgenmod,Erule, - #type{def='ASN1_OPEN_TYPE'}, - false,"H"); + asn1ct_gen_per:gen_encode_prim(Erule, + #type{def='ASN1_OPEN_TYPE'}, + "H"); _ -> emit({"'enc_",Conttype,"'(H)",nl,nl}) end, @@ -668,7 +622,6 @@ gen_decode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> Cont#type.def), Conttype = asn1ct_gen:get_inner(Cont#type.def), Ctgenmod = asn1ct_gen:ct_gen_module(Erule), - CurrMod = get(currmod), case asn1ct_gen:type(Conttype) of {primitive,bif} -> Ctgenmod:gen_dec_prim(Erule,Cont,"Bytes"), @@ -677,12 +630,9 @@ gen_decode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> NewTypename = [Constructed_Suffix|Typename], emit({"'dec_",asn1ct_gen:list2name(NewTypename), "'(Bytes, telltype",ObjFun,"),",nl}); - #typereference{val=Dname} -> - emit({"'dec_",Dname,"'(Bytes,telltype),",nl}); - #'Externaltypereference'{module=CurrMod,type=EType} -> - emit({"'dec_",EType,"'(Bytes,telltype),",nl}); - #'Externaltypereference'{module=EMod,type=EType} -> - emit({"'",EMod,"':'dec_",EType,"'(Bytes,telltype),",nl}); + #'Externaltypereference'{}=Etype -> + asn1ct_gen_per:gen_dec_external(Etype, "Bytes"), + emit([com,nl]); 'ASN1_OPEN_TYPE' -> Ctgenmod:gen_dec_prim(Erule,#type{def='ASN1_OPEN_TYPE'}, "Bytes"), @@ -1004,7 +954,6 @@ gen_enc_line(Erule,TopType, Cname, Type, [], Pos,DynamicEnc,Ext) -> Element = make_element(Pos+1,asn1ct_gen:mk_var(asn1ct_name:curr(val))), gen_enc_line(Erule,TopType,Cname,Type,Element, Pos,DynamicEnc,Ext); gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) -> - Ctgenmod = asn1ct_gen:ct_gen_module(Erule), Atype = case Type of #type{def=#'ObjectClassFieldType'{type=InnerType}} -> @@ -1026,8 +975,6 @@ gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) -> case DynamicEnc of {_LeadingAttrName,Fun} -> case (Type#type.def)#'ObjectClassFieldType'.fieldname of - {notype,T} -> - throw({error,{notype,type_from_object,T}}); {Name,RestFieldNames} when is_atom(Name) -> asn1ct_func:need({Erule,complete,1}), asn1ct_func:need({Erule,encode_open_type,1}), @@ -1057,29 +1004,17 @@ gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) -> #'Externaltypereference'{module=Mod,type=EType} -> emit({"'",Mod,"':'enc_", EType,"'(",Element,")"}); - #typereference{val=Ename} -> - emit({"'enc_",Ename,"'(",Element,")"}); - {notype,_} -> - emit({"'enc_",Atype,"'(",Element,")"}); {primitive,bif} -> - EncType = - case Atype of - {fixedtypevaluefield,_,Btype} -> - Btype; - _ -> - Type - end, - gen_encode_prim_wrapper(Ctgenmod,Erule,EncType, - false,Element); + asn1ct_gen_per:gen_encode_prim(Erule, Type, Element); 'ASN1_OPEN_TYPE' -> case Type#type.def of #'ObjectClassFieldType'{type=OpenType} -> - gen_encode_prim_wrapper(Ctgenmod,Erule, - #type{def=OpenType}, - false,Element); + asn1ct_gen_per:gen_encode_prim(Erule, + #type{def=OpenType}, + Element); _ -> - gen_encode_prim_wrapper(Ctgenmod,Erule,Type, - false,Element) + asn1ct_gen_per:gen_encode_prim(Erule, Type, + Element) end; {constructed,bif} -> NewTypename = [Cname|TopType], @@ -1235,68 +1170,67 @@ gen_dec_comp_call(Comp, Erule, TopType, Tpos, OptTable, DecInfObj, end end end, - - OptOrDef = - case {Ext,Prop} of - {noext,mandatory} -> - ignore; - {noext,_} -> %% OPTIONAL or DEFAULT - OptPos = get_optionality_pos(TextPos, OptTable), - Element = io_lib:format("Opt band (1 bsl ~w)", - [NumberOfOptionals - OptPos]), - fun(St) -> - emit(["case ",Element," of",nl]), - emit([" _Opt",TextPos," when _Opt",TextPos," > 0 ->"]), - St - end; - {{ext,_,_},_} -> %Extension - fun(St) -> - emit(["case Extensions of",nl, - " <<_:",Pos-1,",1:1,_/bitstring>> ->",nl]), - St - end - end, - Lines = gen_dec_line_imm(Erule, TopType, Comp, Tpos, DecInfObj, Ext), - Postamble = - case {Ext,Prop} of - {noext,mandatory} -> - ignore; - {noext,_} -> - fun(St) -> - emit([";",nl,"0 ->"]), - emit(["{"]), - gen_dec_component_no_val(Ext,Prop), - emit({",",{curr,bytes},"}",nl}), - emit([nl,"end"]), - St - end; - _ -> - fun(St) -> - emit([";",nl,"_ ->",nl]), - emit(["{"]), - case Type of - #type{def=#'SEQUENCE'{ - extaddgroup=Number2, - components=ExtGroupCompList2}} - when is_integer(Number2)-> - emit({"{extAddGroup,"}), - gen_dec_extaddGroup_no_val(Ext,ExtGroupCompList2), - emit({"}"}); - _ -> - gen_dec_component_no_val(Ext, Prop) - end, - emit({",",{curr,bytes},"}",nl}), - emit([nl,"end"]), - St - end - end, + {Pre,Post} = comp_call_pre_post(Ext, Prop, Pos, Type, TextPos, + OptTable, NumberOfOptionals, Ext), + Lines = gen_dec_seq_line_imm(Erule, TopType, Comp, Tpos, DecInfObj, Ext), AdvBuffer = {ignore,fun(St) -> asn1ct_name:new(bytes), St end}, - [{group,[{safe,Comment},{safe,Preamble}, - OptOrDef|Lines]++ - [Postamble,{safe,AdvBuffer}]}]. + [{group,[{safe,Comment},{safe,Preamble}] ++ Pre ++ + Lines ++ Post ++ [{safe,AdvBuffer}]}]. + +comp_call_pre_post(noext, mandatory, _, _, _, _, _, _) -> + {[],[]}; +comp_call_pre_post(noext, Prop, _, _, TextPos, OptTable, NumOptionals, Ext) -> + %% OPTIONAL or DEFAULT + OptPos = get_optionality_pos(TextPos, OptTable), + Element = case NumOptionals - OptPos of + 0 -> + "Opt band 1"; + Shift -> + lists:concat(["(Opt bsr ",Shift,") band 1"]) + end, + {[fun(St) -> + emit(["case ",Element," of",nl, + "1 ->",nl]), + St + end], + [fun(St) -> + emit([";",nl, + "0 ->",nl, + "{"]), + gen_dec_component_no_val(Ext, Prop), + emit([",",{curr,bytes},"}",nl, + "end"]), + St + end]}; +comp_call_pre_post({ext,_,_}, Prop, Pos, Type, _, _, _, Ext) -> + %% Extension + {[fun(St) -> + emit(["case Extensions of",nl, + " <<_:",Pos-1,",1:1,_/bitstring>> ->",nl]), + St + end], + [fun(St) -> + emit([";",nl, + "_ ->",nl, + "{"]), + case Type of + #type{def=#'SEQUENCE'{ + extaddgroup=Number2, + components=ExtGroupCompList2}} + when is_integer(Number2)-> + emit("{extAddGroup,"), + gen_dec_extaddGroup_no_val(Ext, ExtGroupCompList2), + emit("}"); + _ -> + gen_dec_component_no_val(Ext, Prop) + end, + emit([",",{curr,bytes},"}",nl, + "end"]), + St + end]}. is_mandatory_predef_tab_c(noext, mandatory, {"got objfun through args","ObjFun"}) -> @@ -1324,13 +1258,17 @@ gen_dec_component_no_val({ext,_,_},mandatory) -> emit({"asn1_NOVALUE"}). -gen_dec_line(Erule, TopType, Comp, Pos, DecInfObj, Ext) -> - Imm0 = gen_dec_line_imm(Erule, TopType, Comp, Pos, DecInfObj, Ext), +gen_dec_choice_line(Erule, TopType, Comp, Pre) -> + Imm0 = gen_dec_line_imm(Erule, TopType, Comp, false, Pre), Init = {ignore,fun(_) -> {[],[]} end}, Imm = [{group,[Init|Imm0]}], emit_gen_dec_imm(Imm). -gen_dec_line_imm(Erule, TopType, Comp, Pos, DecInfObj, Ext) -> +gen_dec_seq_line_imm(Erule, TopType, Comp, Pos, DecInfObj, Ext) -> + Pre = gen_dec_line_open_type(Erule, Ext, Pos), + gen_dec_line_imm(Erule, TopType, Comp, DecInfObj, Pre). + +gen_dec_line_imm(Erule, TopType, Comp, DecInfObj, Pre) -> #'ComponentType'{name=Cname,typespec=Type} = Comp, Atype = case Type of @@ -1339,9 +1277,7 @@ gen_dec_line_imm(Erule, TopType, Comp, Pos, DecInfObj, Ext) -> _ -> asn1ct_gen:get_inner(Type#type.def) end, - - Pre = gen_dec_line_open_type(Erule, Ext, Pos), - Decode = gen_dec_line_special(Erule, Atype, TopType, Comp, DecInfObj, Ext), + Decode = gen_dec_line_special(Erule, Atype, TopType, Comp, DecInfObj), Post = fun({SaveBytes,Finish}) -> {AccTerm,AccBytes} = Finish(), @@ -1385,7 +1321,7 @@ gen_dec_line_open_type(_, _, _) -> end}. gen_dec_line_special(Erule, {typefield,_}, _TopType, Comp, - DecInfObj, Ext) -> + DecInfObj) -> #'ComponentType'{name=Cname,typespec=Type,prop=Prop} = Comp, fun({_BytesVar,PrevSt}) -> case DecInfObj of @@ -1417,7 +1353,7 @@ gen_dec_line_special(Erule, {typefield,_}, _TopType, Comp, %% objfun though arguments on function %% invocation. if - Ext == noext andalso Prop == mandatory -> + Prop =:= mandatory -> ok; true -> asn1ct_name:new(tmpterm), @@ -1431,7 +1367,7 @@ gen_dec_line_special(Erule, {typefield,_}, _TopType, Comp, asn1ct_imm:dec_code_gen(Imm, BytesVar), emit([com,nl]), if - Ext == noext andalso Prop == mandatory -> + Prop =:= mandatory -> emit([{curr,term}," =",nl," "]); true -> emit([" {"]) @@ -1448,7 +1384,7 @@ gen_dec_line_special(Erule, {typefield,_}, _TopType, Comp, emit([indent(6),{curr,tmpterm},nl]), emit([indent(2),"end"]), if - Ext == noext andalso Prop == mandatory -> + Prop =:= mandatory -> ok; true -> emit([",",nl,{curr,tmpbytes},"}"]) @@ -1468,7 +1404,7 @@ gen_dec_line_special(Erule, {typefield,_}, _TopType, Comp, end end; gen_dec_line_special(Erule, {objectfield,PrimFieldName1,PFNList}, _TopType, - Comp, _DecInfObj, _Ext) -> + Comp, _DecInfObj) -> fun({_BytesVar,PrevSt}) -> Imm = asn1ct_imm:per_dec_open_type(is_aligned(Erule)), BytesVar = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), @@ -1480,7 +1416,7 @@ gen_dec_line_special(Erule, {objectfield,PrimFieldName1,PFNList}, _TopType, Prop}], {SaveBytes,PrevSt} end; -gen_dec_line_special(Erule, Atype, TopType, Comp, DecInfObj, _Ext) -> +gen_dec_line_special(Erule, Atype, TopType, Comp, DecInfObj) -> case gen_dec_line_other(Erule, Atype, TopType, Comp) of Fun when is_function(Fun, 1) -> fun({BytesVar,PrevSt}) -> @@ -1503,38 +1439,24 @@ gen_dec_line_dec_inf(Comp, DecInfObj) -> {Cname,{_,OSet,UniqueFName,ValIndex}} -> Term = asn1ct_gen:mk_var(asn1ct_name:curr(term)), ValueMatch = value_match(ValIndex,Term), - {ObjSetMod,ObjSetName} = - case OSet of - {M,O} -> {{asis,M},O}; - _ -> {"?MODULE",OSet} - end, - emit({",",nl,"ObjFun = ",ObjSetMod, + {ObjSetMod,ObjSetName} = OSet, + emit([",",nl, + "ObjFun = ",{asis,ObjSetMod}, ":'getdec_",ObjSetName,"'(", - {asis,UniqueFName},", ",ValueMatch,")"}); + {asis,UniqueFName},", ",ValueMatch,")"]); _ -> ok end. gen_dec_line_other(Erule, Atype, TopType, Comp) -> #'ComponentType'{name=Cname,typespec=Type} = Comp, - CurrMod = get(currmod), case asn1ct_gen:type(Atype) of - #'Externaltypereference'{module=CurrMod,type=EType} -> + #'Externaltypereference'{}=Etype -> fun(BytesVar) -> - emit({"'dec_",EType,"'(",BytesVar,",telltype)"}) - end; - #'Externaltypereference'{module=Mod,type=EType} -> - fun(BytesVar) -> - emit({"'",Mod,"':'dec_",EType,"'(",BytesVar, - ",telltype)"}) + asn1ct_gen_per:gen_dec_external(Etype, BytesVar) end; {primitive,bif} -> - case Atype of - {fixedtypevaluefield,_,Btype} -> - asn1ct_gen_per:gen_dec_imm(Erule, Btype); - _ -> - asn1ct_gen_per:gen_dec_imm(Erule, Type) - end; + asn1ct_gen_per:gen_dec_imm(Erule, Type); 'ASN1_OPEN_TYPE' -> case Type#type.def of #'ObjectClassFieldType'{type=OpenType} -> @@ -1542,14 +1464,6 @@ gen_dec_line_other(Erule, Atype, TopType, Comp) -> _ -> asn1ct_gen_per:gen_dec_imm(Erule, Type) end; - #typereference{val=Dname} -> - fun(BytesVar) -> - emit({"'dec_",Dname,"'(",BytesVar,",telltype)"}) - end; - {notype,_} -> - fun(BytesVar) -> - emit({"'dec_",Atype,"'(",BytesVar,",telltype)"}) - end; {constructed,bif} -> NewTypename = [Cname|TopType], case Type#type.tablecinf of @@ -1605,16 +1519,14 @@ get_name_list([], Acc) -> gen_enc_choice2(Erule,TopType, {L1,L2}, Ext) -> - gen_enc_choice2(Erule,TopType, L1 ++ L2, 0, Ext); -gen_enc_choice2(Erule,TopType, {L1,L2,L3}, Ext) -> - gen_enc_choice2(Erule,TopType, L1 ++ L3 ++ L2, 0, Ext); + gen_enc_choice2(Erule, TopType, L1 ++ L2, 0, [], Ext); +gen_enc_choice2(Erule, TopType, {L1,L2,L3}, Ext) -> + gen_enc_choice2(Erule, TopType, L1 ++ L3 ++ L2, 0, [], Ext); gen_enc_choice2(Erule,TopType, L, Ext) -> - gen_enc_choice2(Erule,TopType, L, 0, Ext). + gen_enc_choice2(Erule,TopType, L, 0, [], Ext). -gen_enc_choice2(Erule,TopType,[H1,H2|T], Pos, Ext) -when is_record(H1,'ComponentType'), is_record(H2,'ComponentType') -> - Cname = H1#'ComponentType'.name, - Type = H1#'ComponentType'.typespec, +gen_enc_choice2(Erule, TopType, [H|T], Pos, Sep0, Ext) -> + #'ComponentType'{name=Cname,typespec=Type} = H, EncObj = case asn1ct_gen:get_constraint(Type#type.constraint, componentrelation) of @@ -1622,130 +1534,157 @@ when is_record(H1,'ComponentType'), is_record(H2,'ComponentType') -> case Type#type.tablecinf of [{objfun,_}|_] -> {"got objfun through args","ObjFun"}; - _ ->false - end; - _ -> {no_attr,"ObjFun"} - end, - emit({{asis,Cname}," ->",nl}), - DoExt = case Ext of - {ext,ExtPos,_} when (Pos + 1) < ExtPos -> noext; - _ -> Ext - end, - gen_enc_line(Erule,TopType,Cname,Type,"element(2,Val)", - Pos+1,EncObj,DoExt), - emit({";",nl}), - gen_enc_choice2(Erule,TopType,[H2|T], Pos+1, Ext); -gen_enc_choice2(Erule,TopType,[H1|T], Pos, Ext) - when is_record(H1,'ComponentType') -> - Cname = H1#'ComponentType'.name, - Type = H1#'ComponentType'.typespec, - EncObj = - case asn1ct_gen:get_constraint(Type#type.constraint, - componentrelation) of - no -> - case Type#type.tablecinf of - [{objfun,_}|_] -> - {"got objfun through args","ObjFun"}; - _ ->false + _ -> + false end; - _ -> {no_attr,"ObjFun"} + _ -> + {no_attr,"ObjFun"} end, - emit({{asis,H1#'ComponentType'.name}," ->",nl}), + emit([Sep0,{asis,Cname}," ->",nl]), DoExt = case Ext of - {ext,ExtPos,_} when (Pos + 1) < ExtPos -> noext; + {ext,ExtPos,_} when Pos + 1 < ExtPos -> noext; _ -> Ext end, - gen_enc_line(Erule,TopType,Cname,Type,"element(2,Val)", - Pos+1,EncObj,DoExt), - gen_enc_choice2(Erule,TopType,T, Pos+1, Ext); -gen_enc_choice2(_Erule,_,[], _, _) -> - true. + gen_enc_line(Erule, TopType, Cname, Type, "element(2, Val)", + Pos+1, EncObj, DoExt), + Sep = [";",nl], + gen_enc_choice2(Erule, TopType, T, Pos+1, Sep, Ext); +gen_enc_choice2(_, _, [], _, _, _) -> ok. + +%% Generate the code for CHOICE. If the CHOICE is extensible, +%% the structure of the generated code is as follows: +%% +%% case Bytes of +%% <<0:1,Bytes1/bitstring>> -> +%% Choice = <Decode INTEGER (0..LastRootChoice) from Bytes1> +%% case Choice of +%% 0 -> <Decode>; +%% : +%% LastRootChoice -> <Decode> +%% end; +%% <<1:1,Bytes1/bitstring>> -> +%% Choice = <Decode normally small number from Bytes1> +%% TmpVal = <Decode open type> +%% case Choice of +%% 0 -> <Decode TmpVal>; +%% : +%% LastExtension -> <Decode TmpVal>; +%% _ -> <Return TmpVal since the type is unknown> +%% end +%% end +%% +%% The return value from the generated function always looks like: +%% {{ChoiceTag,Value},RemainingBuffer} +%% where ChoiceTag will be 'asn1_ExtAlt' for an unknown extension. +%% +%% If the CHOICE is not extensible, the top-level case is omitted +%% and only the code in the first case arm is generated. -gen_dec_choice(Erule,TopType,CompList,{ext,Pos,NumExt}) -> - emit(["{Ext,",{curr,bytes},"} = ", - {call,Erule,getbit,["Bytes"]},com,nl]), +gen_dec_choice(Erule, TopType, CompList, {ext,_,_}=Ext) -> + {RootList,ExtList} = split_complist(CompList), + emit(["case Bytes of",nl]), + case RootList of + [] -> + ok; + [_|_] -> + emit(["<<0:1,Bytes1/bitstring>> ->",nl]), + asn1ct_name:new(bytes), + gen_dec_choice1(Erule, TopType, RootList, noext), + emit([";",nl,nl]) + end, + emit(["<<1:1,Bytes1/bitstring>> ->",nl]), + asn1ct_name:clear(), + asn1ct_name:new(bytes), asn1ct_name:new(bytes), - gen_dec_choice1(Erule,TopType,CompList,{ext,Pos,NumExt}); -gen_dec_choice(Erule,TopType,CompList,noext) -> - gen_dec_choice1(Erule,TopType,CompList,noext). - -gen_dec_choice1(Erule,TopType,CompList,noext) -> - emit(["{Choice,",{curr,bytes}, - "} = ",{call,Erule,getchoice, - [{prev,bytes},length(CompList),"0"]},com,nl, - "{Cname,{Val,NewBytes}} = case Choice of",nl]), - gen_dec_choice2(Erule,TopType,CompList,noext), - emit({nl,"end,",nl}), - emit({nl,"{{Cname,Val},NewBytes}"}); -gen_dec_choice1(Erule,TopType,{RootList,ExtList},Ext) -> - NewList = RootList ++ ExtList, - gen_dec_choice1(Erule,TopType, NewList, Ext); -gen_dec_choice1(Erule,TopType,{RootList,ExtList,RootList2},Ext) -> - NewList = RootList ++ RootList2 ++ ExtList, - gen_dec_choice1(Erule,TopType, NewList, Ext); -gen_dec_choice1(Erule,TopType,CompList,{ext,ExtPos,ExtNum}) -> - emit(["{Choice,",{curr,bytes},"} = ", - {call,Erule,getchoice, - [{prev,bytes},length(CompList)-ExtNum,"Ext"]},com,nl]), - emit({"{Cname,{Val,NewBytes}} = case Choice + Ext*",ExtPos-1," of",nl}), - gen_dec_choice2(Erule,TopType,CompList,{ext,ExtPos,ExtNum}), + gen_dec_choice1(Erule, TopType, ExtList, Ext), + emit([nl,"end"]); +gen_dec_choice(Erule, TopType, CompList, noext) -> + gen_dec_choice1(Erule, TopType, CompList, noext). + +split_complist({Root1,Ext,Root2}) -> + {Root1++Root2,Ext}; +split_complist({_,_}=CompList) -> + CompList. + +gen_dec_choice1(Erule, TopType, CompList, noext=Ext) -> + emit_getchoice(Erule, CompList, Ext), + emit(["case Choice of",nl]), + Pre = {safe,fun(St) -> + {asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), + fun() -> St end} + end}, + gen_dec_choice2(Erule, TopType, CompList, Pre), + emit([nl,"end"]); +gen_dec_choice1(Erule, TopType, CompList, {ext,_,_}=Ext) -> + emit_getchoice(Erule, CompList, Ext), Imm = asn1ct_imm:per_dec_open_type(is_aligned(Erule)), + emit(["begin",nl]), BytesVar = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), - emit([";",nl, - "_ ->",nl]), - {TmpTerm,TmpBuf} = asn1ct_imm:dec_slim_cg(Imm, BytesVar), - emit([com,nl, - "{asn1_ExtAlt,{",TmpTerm,com,TmpBuf,"}}",nl, - "end,",nl,nl, - "{{Cname,Val},NewBytes}"]). - + {Dst,DstBuf} = asn1ct_imm:dec_slim_cg(Imm, BytesVar), + emit([nl, + "end,",nl, + "case Choice of",nl]), + Pre = {safe,fun(St) -> + emit(["{TmpVal,_} = "]), + {Dst, + fun() -> + emit([",",nl, + "{TmpVal,",DstBuf,"}"]), + St + end} + end}, + gen_dec_choice2(Erule, TopType, CompList, Pre), + case CompList of + [] -> ok; + [_|_] -> emit([";",nl]) + end, + emit(["_ ->",nl, + "{{asn1_ExtAlt,",Dst,"},",DstBuf,"}",nl, + "end"]). + +emit_getchoice(Erule, CompList, Ext) -> + Al = is_aligned(Erule), + Imm = case {Ext,CompList} of + {noext,[_]} -> + {value,0}; + {noext,_} -> + asn1ct_imm:per_dec_constrained(0, length(CompList)-1, Al); + {{ext,_,_},_} -> + asn1ct_imm:per_dec_normally_small_number(Al) + end, + emit(["{Choice,",{curr,bytes},"} = ",nl]), + BytesVar = asn1ct_gen:mk_var(asn1ct_name:prev(bytes)), + asn1ct_imm:dec_code_gen(Imm, BytesVar), + emit([com,nl]). gen_dec_choice2(Erule,TopType,L,Ext) -> - gen_dec_choice2(Erule,TopType,L,0,Ext). + gen_dec_choice2(Erule, TopType, L, 0, [], Ext). -gen_dec_choice2(Erule,TopType,[H1,H2|T],Pos,Ext) -when is_record(H1,'ComponentType'), is_record(H2,'ComponentType') -> - Cname = H1#'ComponentType'.name, - Type = H1#'ComponentType'.typespec, +gen_dec_choice2(Erule, TopType, [H0|T], Pos, Sep0, Pre) -> + #'ComponentType'{name=Cname,typespec=Type} = H0, + H = H0#'ComponentType'{prop=mandatory}, + emit([Sep0,Pos," ->",nl]), case Type#type.def of #'ObjectClassFieldType'{type={typefield,_}} -> - emit({Pos," -> ",nl}), - wrap_gen_dec_line(Erule,H1,TopType,Cname,Type,Pos+1,false,Ext), - emit({";",nl}); - _ -> - emit({Pos," -> {",{asis,Cname},",",nl}), - wrap_gen_dec_line(Erule,H1,TopType,Cname,Type,Pos+1,false,Ext), - emit({"};",nl}) - end, - gen_dec_choice2(Erule,TopType,[H2|T],Pos+1,Ext); -gen_dec_choice2(Erule,TopType,[H1,_H2|T],Pos,Ext) when is_record(H1,'ComponentType') -> - gen_dec_choice2(Erule,TopType,[H1|T],Pos,Ext); % skip extensionmark -gen_dec_choice2(Erule,TopType,[H1|T],Pos,Ext) when is_record(H1,'ComponentType') -> - Cname = H1#'ComponentType'.name, - Type = H1#'ComponentType'.typespec, - case Type#type.def of - #'ObjectClassFieldType'{type={typefield,_}} -> - emit({Pos," -> ",nl}), - wrap_gen_dec_line(Erule,H1,TopType,Cname,Type,Pos+1,false,Ext); + emit("{Cname,{Val,NewBytes}} = begin\n"), + gen_dec_choice_line(Erule, TopType, H, Pre), + emit([nl, + "end,",nl, + "{{Cname,Val},NewBytes}"]); _ -> - emit({Pos," -> {",{asis,Cname},",",nl}), - wrap_gen_dec_line(Erule,H1,TopType,Cname,Type,Pos+1,false,Ext), - emit("}") + emit("{Val,NewBytes} = begin\n"), + gen_dec_choice_line(Erule, TopType, H, Pre), + emit([nl, + "end,",nl, + "{{",{asis,Cname},",Val},NewBytes}"]) end, - gen_dec_choice2(Erule,TopType,[T],Pos+1); -gen_dec_choice2(Erule,TopType,[_|T],Pos,Ext) -> - gen_dec_choice2(Erule,TopType,T,Pos,Ext);% skip extensionmark -gen_dec_choice2(_,_,[],Pos,_) -> - Pos. + Sep = [";",nl], + gen_dec_choice2(Erule, TopType, T, Pos+1, Sep, Pre); +gen_dec_choice2(_, _, [], _, _, _) -> ok. indent(N) -> lists:duplicate(N,32). % 32 = space -gen_encode_prim_wrapper(CtgenMod,Erule,Cont,DoTag,Value) -> -% put(component_type,true), % add more info in component_type - CtgenMod:gen_encode_prim(Erule,Cont,DoTag,Value). -% erase(component_type). - make_elements(I,Val,ExtCnames) -> make_elements(I,Val,ExtCnames,[]). @@ -1816,14 +1755,6 @@ wrap_extensionAdditionGroups([H|T],ExtAddGrpLenPos,Acc,ExtAddGroupDiff,ExtGroupN wrap_extensionAdditionGroups([],_,Acc,_,_) -> lists:reverse(Acc). - -wrap_gen_dec_line(Erule,C,TopType,_Cname,_Type,Pos,DIO,Ext) -> - put(component_type,{true,C}), - gen_dec_line(Erule, TopType, C#'ComponentType'{prop=mandatory}, - Pos, DIO, Ext), - erase(component_type). - - value_match(Index,Value) when is_atom(Value) -> value_match(Index,atom_to_list(Value)); value_match([],Value) -> @@ -1835,9 +1766,5 @@ value_match1(Value,[],Acc,Depth) -> value_match1(Value,[{VI,_}|VIs],Acc,Depth) -> value_match1(Value,VIs,Acc++lists:concat(["element(",VI,","]),Depth+1). -notice_value_match() -> - Module = get(currmod), - put(value_match,{true,Module}). - is_optimized(per) -> true; is_optimized(uper) -> false. |