From 8a7f914affce3102e4889c2973ea2d2e99ad633d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Mon, 16 Jan 2017 16:47:58 +0100 Subject: Teach the ASN.1 compiler the 'maps' option When the 'maps' option is given, the SEQUENCE and SET types are represented as maps instead of as records. Optional and default values must be not be given as asn1_NOVALUE or asn1_DEFAULT in a map passed to the M:encode/2 function; they must be omitted from the map. Similarly, when decoding missing values will be omitted from the map. No .hrl files will be generated when the 'maps' options is used. That means values in an ASN.1 module must be retrieved by calling the appropriate function in generated module. Since we one day hope to get rid of the options 'compact_bit_string', 'legacy_bit_string', and 'legacy_erlang_types', we will not allow them to be combined with the 'maps' option. --- lib/asn1/src/asn1ct_check.erl | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) (limited to 'lib/asn1/src/asn1ct_check.erl') diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl index a01a22ddc4..321f4147f5 100644 --- a/lib/asn1/src/asn1ct_check.erl +++ b/lib/asn1/src/asn1ct_check.erl @@ -2239,12 +2239,18 @@ normalized_record(SorS,S,Value,Components,NameList) -> case is_record_normalized(S,NewName,Value,length(Components)) of true -> Value; - _ -> + false -> NoComps = length(Components), ListOfVals = normalize_seq_or_set(SorS,S,Value,Components,NameList,[]), - NoComps = length(ListOfVals), %% Assert - list_to_tuple([NewName|ListOfVals]) + NoComps = length(ListOfVals), %Assertion. + case use_maps(S) of + false -> + list_to_tuple([NewName|ListOfVals]); + true -> + create_map_value(Components, ListOfVals) + end end. + is_record_normalized(S,Name,V = #'Externalvaluereference'{},NumComps) -> case get_referenced_type(S,V) of {_M,#valuedef{type=_T1,value=V2}} -> @@ -2253,9 +2259,20 @@ is_record_normalized(S,Name,V = #'Externalvaluereference'{},NumComps) -> end; is_record_normalized(_S,Name,Value,NumComps) when is_tuple(Value) -> (tuple_size(Value) =:= (NumComps + 1)) andalso (element(1, Value) =:= Name); +is_record_normalized(_S, _Name, Value, _NumComps) when is_map(Value) -> + true; is_record_normalized(_,_,_,_) -> false. +use_maps(#state{options=Opts}) -> + lists:member(maps, Opts). + +create_map_value(Components, ListOfVals) -> + Zipped = lists:zip(Components, ListOfVals), + L = [{Name,V} || {#'ComponentType'{name=Name},V} <- Zipped, + V =/= asn1_NOVALUE], + maps:from_list(L). + normalize_seq_or_set(SorS, S, [{#seqtag{val=Cname},V}|Vs], [#'ComponentType'{name=Cname,typespec=TS}|Cs], @@ -5674,7 +5691,8 @@ storeindb(S0, #module{name=ModName,typeorval=TVlist0}=M) -> storeindb_1(S, #module{name=ModName}=M, TVlist0, TVlist) -> NewM = M#module{typeorval=findtypes_and_values(TVlist0)}, - asn1_db:dbnew(ModName, S#state.erule), + Maps = lists:member(maps, S#state.options), + asn1_db:dbnew(ModName, S#state.erule, Maps), asn1_db:dbput(ModName, 'MODULE', NewM), asn1_db:dbput(ModName, TVlist), include_default_class(S, NewM#module.name), -- cgit v1.2.3