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-rw-r--r--lib/asn1/src/asn1ct_check.erl135
1 files changed, 94 insertions, 41 deletions
diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl
index 9af88166e8..828ebdac1c 100644
--- a/lib/asn1/src/asn1ct_check.erl
+++ b/lib/asn1/src/asn1ct_check.erl
@@ -1664,38 +1664,80 @@ check_objectdefn(S, Def, #classdef{typespec=ObjClass}) ->
end
end.
-get_syntax(_, {preprocessed_syntax,Syntax}, _) ->
- Syntax;
-get_syntax(S, {'WITH SYNTAX',Syntax}, ClassFields) ->
- preprocess_syntax(S, Syntax, ClassFields).
-
%%%
%%% Pre-process the simplified syntax so that it can be more
%%% easily matched.
%%%
-preprocess_syntax(S, [H|T], Cs) when is_list(H) ->
- [{optional,preprocess_syntax(S, H, Cs)}|preprocess_syntax(S, T, Cs)];
-preprocess_syntax(S, [{valuefieldreference,Name}|T], Cs) ->
- case lists:keyfind(Name, 2, Cs) of
- Tuple when is_tuple(Tuple) ->
- [{field,Tuple}|preprocess_syntax(S, T, Cs)];
+get_syntax(_, {preprocessed_syntax,Syntax}, _) ->
+ Syntax;
+get_syntax(S, {'WITH SYNTAX',Syntax}, ClassFields) ->
+ preprocess_syntax(S, Syntax, ClassFields).
+
+preprocess_syntax(S, Syntax0, Cs) ->
+ Syntax = preprocess_syntax_1(S, Syntax0, Cs, true),
+ Present0 = preprocess_get_fields(Syntax, []),
+ Present1 = lists:sort(Present0),
+ Present = ordsets:from_list(Present1),
+ case Present =:= Present1 of
false ->
- asn1_error(S, {syntax_undefined_field,Name})
- end;
-preprocess_syntax(S, [{typefieldreference,Name}|T], Cs) ->
+ Dupl = Present1 -- Present,
+ asn1_error(S, {syntax_duplicated_fields,Dupl});
+ true ->
+ ok
+ end,
+ Mandatory0 = get_mandatory_class_fields(Cs),
+ Mandatory = ordsets:from_list(Mandatory0),
+ case ordsets:subtract(Mandatory, Present) of
+ [] ->
+ Syntax;
+ [_|_]=Missing ->
+ asn1_error(S, {syntax_missing_mandatory_fields,Missing})
+ end.
+
+preprocess_syntax_1(S, [H|T], Cs, Mandatory) when is_list(H) ->
+ [{optional,preprocess_syntax_1(S, H, Cs, false)}|
+ preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S, [{valuefieldreference,Name}|T], Cs, Mandatory) ->
+ F = preprocess_check_field(S, Name, Cs, Mandatory),
+ [F|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S, [{typefieldreference,Name}|T], Cs, Mandatory) ->
+ F = preprocess_check_field(S, Name, Cs, Mandatory),
+ [F|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S,[{Token,_}|T], Cs, Mandatory) when is_atom(Token) ->
+ [{token,Token}|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S, [Token|T], Cs, Mandatory) when is_atom(Token) ->
+ [{token,Token}|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(_, [], _, _) -> [].
+
+preprocess_check_field(S, Name, Cs, Mandatory) ->
case lists:keyfind(Name, 2, Cs) of
Tuple when is_tuple(Tuple) ->
- [{field,Tuple}|preprocess_syntax(S, T, Cs)];
+ case not Mandatory andalso is_mandatory_class_field(Tuple) of
+ true ->
+ asn1_error(S, {syntax_mandatory_in_optional_group,Name});
+ false ->
+ {field,Tuple}
+ end;
false ->
asn1_error(S, {syntax_undefined_field,Name})
- end;
-preprocess_syntax(S,[{Token,_}|T], Cs) when is_atom(Token) ->
- [{token,Token}|preprocess_syntax(S, T, Cs)];
-preprocess_syntax(S, [Token|T], Cs) when is_atom(Token) ->
- [{token,Token}|preprocess_syntax(S, T, Cs)];
-preprocess_syntax(_, [], _) -> [].
+ end.
+
+preprocess_get_fields([{field,F}|T], Acc) ->
+ Name = element(2, F),
+ preprocess_get_fields(T, [Name|Acc]);
+preprocess_get_fields([{optional,L}|T], Acc) ->
+ preprocess_get_fields(T, preprocess_get_fields(L, Acc));
+preprocess_get_fields([_|T], Acc) ->
+ preprocess_get_fields(T, Acc);
+preprocess_get_fields([], Acc) ->
+ Acc.
+
+%%%
+%%% Match the actual fields in the object definition to
+%%% the pre-processed simplified syntax.
+%%%
match_syntax(S, [{token,Token}|T], [A|As]=Args, Acc) ->
case A of
@@ -1730,7 +1772,7 @@ match_syntax(S, [{optional,L}|T], As0, Acc) ->
match_syntax(_, [_|_], [], _Acc) ->
{nomatch,[]};
match_syntax(_, [], As, Acc) ->
- {match,lists:reverse(Acc),As}.
+ {match,Acc,As}.
match_syntax_type(S, Type, {value_tag,Val}) ->
match_syntax_type(S, Type, Val);
@@ -1964,22 +2006,24 @@ check_defaultfields_1(S, [{FName,Spec}|Fields], ClassFields, Acc) ->
{match,Match} = match_syntax_type(S, CField, Spec),
check_defaultfields_1(S, Fields, ClassFields, Match++Acc).
-get_mandatory_class_fields([{fixedtypevaluefield,Name,_,_,'MANDATORY'}|T]) ->
- [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{objectfield,Name,_,_,'MANDATORY'}|T]) ->
- [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{objectsetfield,Name,_,'MANDATORY'}|T]) ->
- [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{typefield,Name,'MANDATORY'}|T]) ->
- [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{variabletypevaluefield,Name,_,'MANDATORY'}|T]) ->
- [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{variabletypevaluesetfield,
- Name,_,'MANDATORY'}|T]) ->
- [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([_|T]) ->
- get_mandatory_class_fields(T);
-get_mandatory_class_fields([]) -> [].
+get_mandatory_class_fields(ClassFields) ->
+ [element(2, F) || F <- ClassFields,
+ is_mandatory_class_field(F)].
+
+is_mandatory_class_field({fixedtypevaluefield,_,_,_,'MANDATORY'}) ->
+ true;
+is_mandatory_class_field({objectfield,_,_,_,'MANDATORY'}) ->
+ true;
+is_mandatory_class_field({objectsetfield,_,_,'MANDATORY'}) ->
+ true;
+is_mandatory_class_field({typefield,_,'MANDATORY'}) ->
+ true;
+is_mandatory_class_field({variabletypevaluefield,_,_,'MANDATORY'}) ->
+ true;
+is_mandatory_class_field({variabletypevaluesetfield,_,_,'MANDATORY'}) ->
+ true;
+is_mandatory_class_field(_) ->
+ false.
merged_name(#state{inputmodules=[]},ERef) ->
ERef;
@@ -6580,8 +6624,17 @@ format_error({missing_mandatory_fields,Fields,Obj}) ->
[format_fields(Fields),Obj]);
format_error({namelist_redefinition,Name}) ->
io_lib:format("the name '~s' can not be redefined", [Name]);
+format_error({syntax_duplicated_fields,Fields}) ->
+ io_lib:format("~s must only occur once in the syntax list",
+ [format_fields(Fields)]);
format_error(syntax_nomatch) ->
"unexpected end of object definition";
+format_error({syntax_mandatory_in_optional_group,Name}) ->
+ io_lib:format("the field '&~s' must not be within an optional group since it is not optional",
+ [Name]);
+format_error({syntax_missing_mandatory_fields,Fields}) ->
+ io_lib:format("missing mandatory ~s in the syntax list",
+ [format_fields(Fields)]);
format_error({syntax_nomatch,Actual}) ->
io_lib:format("~s is not the next item allowed according to the defined syntax",
[Actual]);
@@ -6602,10 +6655,10 @@ format_error(Other) ->
io_lib:format("~p", [Other]).
format_fields([F]) ->
- io_lib:format("field &~s", [F]);
+ io_lib:format("field '&~s'", [F]);
format_fields([H|T]) ->
- [io_lib:format("fields &~s", [H])|
- [io_lib:format(", &~s", [F]) || F <- T]].
+ [io_lib:format("fields '&~s'", [H])|
+ [io_lib:format(", '&~s'", [F]) || F <- T]].
error({_,{structured_error,_,_,_}=SE,_}) ->
SE;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 21:35:48 +0000