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authorBjörn Gustavsson <[email protected]>2017-01-13 14:27:59 +0100
committerBjörn Gustavsson <[email protected]>2017-02-03 13:34:23 +0100
commit75f9ee5823d57bfb60febc7371920a6858c895fd (patch)
treec4fc6b057d582627d0705646b9ec9d4ad2307153 /lib/asn1
parent3ca2800ee4ff086eec7fe51b5316cda4779414af (diff)
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Clean up handling of textual order
The to_encoding_order/1 function can be eliminated if we incorporate its functionality into textual_order/2. textual_order/2 has a workaround for TermList being longer than OrderList. Remove the workaround, because the code being generated would certainly be wrong (better let the compiler crash and receive a bug report if it happens). The workaround was not necessary to successfully compile the entire Erlang/OTP and to run the asn1 test suite.
Diffstat (limited to 'lib/asn1')
-rw-r--r--lib/asn1/src/asn1ct_constructed_per.erl26
1 files changed, 9 insertions, 17 deletions
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl
index a3a0d4c3c2..e9cfc56fa5 100644
--- a/lib/asn1/src/asn1ct_constructed_per.erl
+++ b/lib/asn1/src/asn1ct_constructed_per.erl
@@ -350,7 +350,7 @@ gen_dec_pack(Typename, CompList) ->
%% CompList is used here because we don't want
%% ExtensionAdditionGroups to be wrapped in SEQUENCES when
%% we are ordering the fields according to textual order
- mkvlist(textual_order(to_encoding_order(CompList),asn1ct_name:all(term))),
+ mkvlist(textual_order(CompList, asn1ct_name:all(term))),
emit("},")
end,
emit({{curr,bytes},"}"}).
@@ -378,17 +378,16 @@ filter_ext_add_groups([H|T], Acc) ->
filter_ext_add_groups(T, [H|Acc]);
filter_ext_add_groups([], Acc) -> Acc.
-textual_order([#'ComponentType'{textual_order=undefined}|_],TermList) ->
+textual_order([#'ComponentType'{textual_order=undefined}|_], TermList) ->
TermList;
-textual_order(CompList,TermList) when is_list(CompList) ->
+textual_order(CompList, TermList) when is_list(CompList) ->
OrderList = [Ix||#'ComponentType'{textual_order=Ix} <- CompList],
- [Term||{_,Term}<-
- lists:sort(lists:zip(OrderList,
- lists:sublist(TermList,length(OrderList))))];
- %% sublist is just because Termlist can sometimes be longer than
- %% OrderList, which it really shouldn't
-textual_order({Root,Ext},TermList) ->
- textual_order(Root ++ Ext,TermList).
+ Zipped = lists:sort(lists:zip(OrderList, TermList)),
+ [Term || {_,Term} <- Zipped];
+textual_order({Root,Ext}, TermList) ->
+ textual_order(Root ++ Ext, TermList);
+textual_order({R1,Ext,R2}, TermList) ->
+ textual_order(R1 ++ R2 ++ Ext, TermList).
to_textual_order({Root,Ext}) ->
{to_textual_order(Root),Ext};
@@ -778,13 +777,6 @@ get_optionality_pos(TextPos,OptTable) ->
no_num
end.
-to_encoding_order(Cs) when is_list(Cs) ->
- Cs;
-to_encoding_order(Cs = {_Root,_Ext}) ->
- Cs;
-to_encoding_order({R1,Ext,R2}) ->
- {R1++R2,Ext}.
-
add_textual_order(Cs) when is_list(Cs) ->
{NewCs,_} = add_textual_order1(Cs,1),
NewCs;