diff options
Diffstat (limited to 'lib/asn1/src/asn1ct_gen_per.erl')
| -rw-r--r-- | lib/asn1/src/asn1ct_gen_per.erl | 211 |
1 files changed, 64 insertions, 147 deletions
diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl index bd5b81991d..eb4cfdccc6 100644 --- a/lib/asn1/src/asn1ct_gen_per.erl +++ b/lib/asn1/src/asn1ct_gen_per.erl @@ -25,6 +25,7 @@ -include("asn1_records.hrl"). %-compile(export_all). +-export([gen_dec_imm/2]). -export([pgen/4,gen_dec_prim/3,gen_encode_prim/4]). -export([gen_obj_code/3,gen_objectset_code/2]). -export([gen_decode/2, gen_decode/3]). @@ -146,16 +147,18 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) -> case D#type.def of 'INTEGER' -> emit({"?RT_PER:encode_integer(", %fel - {asis,effective_constraint(integer,Constraint)},",",Value,")"}); + {asis,asn1ct_imm:effective_constraint(integer,Constraint)}, + ",",Value,")"}); {'INTEGER',NamedNumberList} -> emit({"?RT_PER:encode_integer(", - {asis,effective_constraint(integer,Constraint)},",",Value,",", + {asis,asn1ct_imm:effective_constraint(integer,Constraint)}, + ",",Value,",", {asis,NamedNumberList},")"}); {'ENUMERATED',{Nlist1,Nlist2}} -> NewList = lists:concat([[{0,X}||{X,_} <- Nlist1],['EXT_MARK'],[{1,X}||{X,_} <- Nlist2]]), NewC = [{'ValueRange',{0,length(Nlist1)-1}}], case Erules of - uper_bin -> + uper -> emit(["case ",Value," of",nl]); _ -> emit(["case (case ",Value," of {_,",{curr,enumval},"}-> ", @@ -168,7 +171,7 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) -> NewList = [X||{X,_} <- NamedNumberList], NewC = [{'ValueRange',{0,length(NewList)-1}}], case Erules of - uper_bin -> + uper -> emit(["case ",Value," of",nl]); _ -> emit(["case (case ",Value," of {_,",{curr,enumval}, @@ -184,7 +187,7 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) -> {asis,Constraint},",",Value,",", {asis,NamedNumberList},")"}); 'NULL' -> - emit({"?RT_PER:encode_null(",Value,")"}); + emit("[]"); 'OBJECT IDENTIFIER' -> emit({"?RT_PER:encode_object_identifier(",Value,")"}); 'RELATIVE-OID' -> @@ -274,7 +277,7 @@ emit_enc_enumerated_cases(Erule, C, [H1,H2|T], Count) -> -emit_enc_enumerated_case(uper_bin,_C, {asn1_enum,High}, _) -> +emit_enc_enumerated_case(uper,_C, {asn1_enum,High}, _) -> emit([ "{asn1_enum,EnumV} when is_integer(EnumV), EnumV > ",High," -> ", "[<<1:1>>,?RT_PER:encode_small_number(EnumV)]"]); @@ -284,118 +287,27 @@ emit_enc_enumerated_case(_Per,_C, {asn1_enum,High}, _) -> "[{bit,1},?RT_PER:encode_small_number(EnumV)]"]); emit_enc_enumerated_case(_Erule, _C, 'EXT_MARK', _Count) -> true; -emit_enc_enumerated_case(uper_bin,_C, {1,EnumName}, Count) -> +emit_enc_enumerated_case(uper,_C, {1,EnumName}, Count) -> emit(["'",EnumName,"' -> [<<1:1>>,?RT_PER:encode_small_number(",Count,")]"]); emit_enc_enumerated_case(_Per,_C, {1,EnumName}, Count) -> emit(["'",EnumName,"' -> [{bit,1},?RT_PER:encode_small_number(",Count,")]"]); -emit_enc_enumerated_case(uper_bin,C, {0,EnumName}, Count) -> +emit_enc_enumerated_case(uper,C, {0,EnumName}, Count) -> emit(["'",EnumName,"' -> [<<0:1>>,?RT_PER:encode_integer(",{asis,C},", ",Count,")]"]); emit_enc_enumerated_case(_Per,C, {0,EnumName}, Count) -> emit(["'",EnumName,"' -> [{bit,0},?RT_PER:encode_integer(",{asis,C},", ",Count,")]"]); emit_enc_enumerated_case(_Erule, C, EnumName, Count) -> emit(["'",EnumName,"' -> ?RT_PER:encode_integer(",{asis,C},", ",Count,")"]). -%% effective_constraint(Type,C) -%% Type = atom() -%% C = [C1,...] -%% C1 = {'SingleValue',SV} | {'ValueRange',VR} | {atom(),term()} -%% SV = integer() | [integer(),...] -%% VR = {Lb,Ub} -%% Lb = 'MIN' | integer() -%% Ub = 'MAX' | integer() -%% Returns a single value if C only has a single value constraint, and no -%% value range constraints, that constrains to a single value, otherwise -%% returns a value range that has the lower bound set to the lowest value -%% of all single values and lower bound values in C and the upper bound to -%% the greatest value. -effective_constraint(integer,[C={{_,_},_}|_Rest]) -> % extension - [C]; %% [C|effective_constraint(integer,Rest)]; XXX what is possible ??? -effective_constraint(integer,C) -> - SVs = get_constraints(C,'SingleValue'), - SV = effective_constr('SingleValue',SVs), - VRs = get_constraints(C,'ValueRange'), - VR = effective_constr('ValueRange',VRs), - greatest_common_range(SV,VR). - -effective_constr(_,[]) -> - []; -effective_constr('SingleValue',List) -> - SVList = lists:flatten(lists:map(fun(X)->element(2,X)end,List)), - %% Sort and remove duplicates before generating SingleValue or ValueRange - %% In case of ValueRange, also check for 'MIN and 'MAX' - case lists:usort(SVList) of - [N] -> - [{'SingleValue',N}]; - L when is_list(L) -> - [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}] - end; -effective_constr('ValueRange',List) -> - LBs = lists:map(fun({_,{Lb,_}})-> Lb end,List), - UBs = lists:map(fun({_,{_,Ub}})-> Ub end,List), - Lb = least_Lb(LBs), - [{'ValueRange',{Lb,lists:max(UBs)}}]. - -greatest_common_range([],VR) -> - VR; -greatest_common_range(SV,[]) -> - SV; -greatest_common_range(SV,VR) -> - greatest_common_range2(mk_vr(SV),mk_vr(VR)). -greatest_common_range2({_,Int},{'MIN',Ub}) when is_integer(Int), - Int > Ub -> - [{'ValueRange',{'MIN',Int}}]; -greatest_common_range2({_,Int},{Lb,Ub}) when is_integer(Int), - Int < Lb -> - [{'ValueRange',{Int,Ub}}]; -greatest_common_range2({_,Int},VR={_Lb,_Ub}) when is_integer(Int) -> - [{'ValueRange',VR}]; -greatest_common_range2({_,L},{Lb,Ub}) when is_list(L) -> - Min = least_Lb([Lb|L]), - Max = greatest_Ub([Ub|L]), - [{'ValueRange',{Min,Max}}]; -greatest_common_range2({Lb1,Ub1},{Lb2,Ub2}) -> - Min = least_Lb([Lb1,Lb2]), - Max = greatest_Ub([Ub1,Ub2]), - [{'ValueRange',{Min,Max}}]. - -mk_vr([{Type,I}]) when is_atom(Type), is_integer(I) -> - {I,I}; -mk_vr([{Type,{Lb,Ub}}]) when is_atom(Type) -> - {Lb,Ub}; -mk_vr(Other) -> - Other. - -least_Lb(L) -> - case lists:member('MIN',L) of - true -> 'MIN'; - _ -> lists:min(L) - end. - -greatest_Ub(L) -> - case lists:member('MAX',L) of - true -> 'MAX'; - _ -> lists:max(L) - end. - - -get_constraints(L=[{Key,_}],Key) -> - L; -get_constraints([],_) -> - []; -get_constraints(C,Key) -> - {value,L} = keysearch_allwithkey(Key,1,C,[]), - L. - -keysearch_allwithkey(Key,Ix,C,Acc) -> - case lists:keysearch(Key,Ix,C) of - false -> - {value,Acc}; - {value,T} -> - RestC = lists:delete(T,C), - keysearch_allwithkey(Key,Ix,RestC,[T|Acc]) +get_constraint([{Key,V}], Key) -> + V; +get_constraint([], _) -> + no; +get_constraint(C, Key) -> + case lists:keyfind(Key, 1, C) of + false -> no; + {Key,V} -> V end. - %% Object code generating for encoding and decoding %% ------------------------------------------------ @@ -442,7 +354,7 @@ gen_encode_objectfields(Erule,ClassName,[{typefield,Name,OptOrMand}|Rest], {false,'OPTIONAL'} -> EmitFuncClause("Val"), case Erule of - uper_bin -> + uper -> emit(" Val"); _ -> emit(" [{octets,Val}]") @@ -833,7 +745,7 @@ gen_objset_enc(Erule,ObjSetName,_UniqueName,['EXTENSIONMARK'],_ClName, emit({"'getenc_",ObjSetName,"'(_, _) ->",nl}), emit({indent(3),"fun(_, Val, _) ->",nl}), case Erule of - uper_bin -> + uper -> emit([indent(6),"Val",nl]); _ -> emit([indent(6),"[{octets,Val}]",nl]) @@ -883,7 +795,7 @@ gen_inlined_enc_funs(Erule,Fields,[{typefield,Name,_}|Rest],ObjSetName,NthObj) - emit({indent(9),{asis,Name}," ->",nl}), emit([indent(12),"'",M,"'",":'enc_",T,"'(Val)"]), gen_inlined_enc_funs1(Erule,Fields,Rest,ObjSetName,NthObj,[]); - false when Erule == uper_bin -> + false when Erule =:= uper -> emit([indent(3),"fun(Type,Val,_) ->",nl, indent(6),"case Type of",nl, indent(9),{asis,Name}," -> Val",nl]), @@ -921,7 +833,7 @@ gen_inlined_enc_funs1(Erule,Fields,[{typefield,Name,_}|Rest],ObjSetName, emit({";",nl,indent(9),{asis,Name}," ->",nl}), emit([indent(12),"'",M,"'",":'enc_",T,"'(Val)"]), {Acc,0}; - false when Erule == uper_bin -> + false when Erule =:= uper -> emit([";",nl, indent(9),{asis,Name}," -> ",nl, "Val",nl]), @@ -1228,19 +1140,43 @@ gen_decode_user(Erules,D) when is_record(D,typedef) -> exit({error,{asn1,{unknown,Other}}}) end. +gen_dec_imm(Erule, #type{def=Name,constraint=C}) -> + Aligned = case Erule of + uper -> false; + per -> true + end, + gen_dec_imm_1(Name, C, Aligned). + +gen_dec_imm_1('BOOLEAN', _Constr, _Aligned) -> + asn1ct_imm:per_dec_boolean(); +gen_dec_imm_1({'ENUMERATED',{Base,Ext}}, _Constr, Aligned) -> + asn1ct_imm:per_dec_enumerated(Base, Ext, Aligned); +gen_dec_imm_1({'ENUMERATED',NamedNumberList}, _Constr, Aligned) -> + asn1ct_imm:per_dec_enumerated(NamedNumberList, Aligned); +gen_dec_imm_1('INTEGER', Constr, Aligned) -> + asn1ct_imm:per_dec_integer(Constr, Aligned); +gen_dec_imm_1({'INTEGER',NamedNumberList}, Constraint, Aligned) -> + asn1ct_imm:per_dec_named_integer(Constraint, + NamedNumberList, + Aligned); +gen_dec_imm_1('OCTET STRING', Constraint, Aligned) -> + SzConstr = get_constraint(Constraint, 'SizeConstraint'), + Imm = asn1ct_imm:per_dec_octet_string(SzConstr, Aligned), + {convert,binary_to_list,Imm}; +gen_dec_imm_1(_, _, _) -> no. + +gen_dec_prim(Erule, Type, BytesVar) -> + case gen_dec_imm(Erule, Type) of + no -> + gen_dec_prim_1(Erule, Type, BytesVar); + Imm -> + asn1ct_imm:dec_code_gen(Imm, BytesVar) + end. -gen_dec_prim(Erules,Att,BytesVar) -> - Typename = Att#type.def, - Constraint = Att#type.constraint, +gen_dec_prim_1(Erule, + #type{def=Typename,constraint=Constraint}=Att, + BytesVar) -> case Typename of - 'INTEGER' -> - emit({"?RT_PER:decode_integer(",BytesVar,",", - {asis,effective_constraint(integer,Constraint)},")"}); - {'INTEGER',NamedNumberList} -> - emit({"?RT_PER:decode_integer(",BytesVar,",", - {asis,effective_constraint(integer,Constraint)},",", - {asis,NamedNumberList},")"}); - 'REAL' -> emit({"?RT_PER:decode_real(",BytesVar,")"}); @@ -1256,8 +1192,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> {asis,NamedNumberList},")"}) end; 'NULL' -> - emit({"?RT_PER:decode_null(", - BytesVar,")"}); + emit({"{'NULL',",BytesVar,"}"}); 'OBJECT IDENTIFIER' -> emit({"?RT_PER:decode_object_identifier(", BytesVar,")"}); @@ -1267,24 +1202,6 @@ gen_dec_prim(Erules,Att,BytesVar) -> 'ObjectDescriptor' -> emit({"?RT_PER:decode_ObjectDescriptor(", BytesVar,")"}); - {'ENUMERATED',{NamedNumberList1,NamedNumberList2}} -> - NewTup = {list_to_tuple([X||{X,_} <- NamedNumberList1]), - list_to_tuple([X||{X,_} <- NamedNumberList2])}, - NewC = [{'ValueRange',{0,size(element(1,NewTup))-1}}], - emit({"?RT_PER:decode_enumerated(",BytesVar,",", - {asis,NewC},",", - {asis,NewTup},")"}); - {'ENUMERATED',NamedNumberList} -> - NewTup = list_to_tuple([X||{X,_} <- NamedNumberList]), - NewC = [{'ValueRange',{0,size(NewTup)-1}}], - emit({"?RT_PER:decode_enumerated(",BytesVar,",", - {asis,NewC},",", - {asis,NewTup},")"}); - 'BOOLEAN'-> - emit({"?RT_PER:decode_boolean(",BytesVar,")"}); - 'OCTET STRING' -> - emit({"?RT_PER:decode_octet_string(",BytesVar,",", - {asis,Constraint},")"}); 'NumericString' -> emit({"?RT_PER:decode_NumericString(",BytesVar,",", {asis,Constraint},")"}); @@ -1323,7 +1240,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> 'UTF8String' -> emit({"?RT_PER:decode_UTF8String(",BytesVar,")"}); 'ANY' -> - case Erules of + case Erule of per -> emit(["fun() -> {XTerm,YTermXBytes} = ?RT_PER:decode_open_type(",BytesVar,",",{asis,Constraint}, "), {binary_to_list(XTerm),XBytes} end ()"]); _ -> @@ -1345,7 +1262,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> emit([" {YTerm,_} = dec_",Tname,"(XTerm,mandatory),",nl]), emit([" {YTerm,XBytes} end(",BytesVar,")"]); _ -> - case Erules of + case Erule of per -> emit(["fun() -> {XTerm,XBytes} = ?RT_PER:decode_open_type(",BytesVar,", []), {binary_to_list(XTerm),XBytes} end()"]); _ -> @@ -1353,11 +1270,11 @@ gen_dec_prim(Erules,Att,BytesVar) -> end end; #'ObjectClassFieldType'{} -> - case asn1ct_gen:get_inner(Att#type.def) of + case asn1ct_gen:get_inner(Typename) of {fixedtypevaluefield,_,InnerType} -> - gen_dec_prim(Erules,InnerType,BytesVar); + gen_dec_prim(Erule, InnerType, BytesVar); T -> - gen_dec_prim(Erules,Att#type{def=T},BytesVar) + gen_dec_prim(Erule, Att#type{def=T}, BytesVar) end; Other -> exit({'cant decode' ,Other}) |