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authorBjörn Gustavsson <[email protected]>2014-09-22 14:22:50 +0200
committerBjörn Gustavsson <[email protected]>2015-01-12 11:40:24 +0100
commit2ae4e110b687b31aaa9a0e2d06b0e019819ab753 (patch)
treea51bd12172532a388ef8428f7a53618818050181 /lib/asn1/src
parent6b10f918a4445d990152e4a31f8fde5cc9c8906a (diff)
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Clean up get_fieldname_element/3
Also add proper error handling.
Diffstat (limited to 'lib/asn1/src')
-rw-r--r--lib/asn1/src/asn1ct_check.erl80
1 files changed, 42 insertions, 38 deletions
diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl
index e1607260df..30ec0c2aac 100644
--- a/lib/asn1/src/asn1ct_check.erl
+++ b/lib/asn1/src/asn1ct_check.erl
@@ -1260,6 +1260,8 @@ get_value_from_object(S, Def, FieldNames) ->
case extract_field(S, Def, FieldNames) of
#valuedef{value=Val} ->
Val;
+ {valueset,_}=Val ->
+ Val;
_ ->
asn1_error(S, illegal_value)
end.
@@ -1286,43 +1288,44 @@ extract_field(S, Def0, FieldNames) ->
%% All field names but the last refers to either an object or object set.
get_fieldname_element(S, #typedef{}=Def, [{_RefType,FieldName}]) ->
- {_,_,ObjComps} = (Def#typedef.typespec)#'Object'.def,
- check_fieldname_element(S,lists:keysearch(FieldName,1,ObjComps));
-get_fieldname_element(S,Def,[{_RefType,FieldName}|Rest])
- when is_record(Def,typedef) ->
- %% As FieldName is followd by other FieldNames it has to be an
+ Object = (Def#typedef.typespec)#'Object'.def,
+ check_fieldname_element(S, FieldName, Object);
+get_fieldname_element(S, #typedef{}=Def, [{_RefType,FieldName}|T]) ->
+ %% As FieldName is followed by other FieldNames it has to be an
%% object or objectset.
- {_,_,ObjComps} = (Def#typedef.typespec)#'Object'.def,
- NewDef = check_fieldname_element(S,lists:keysearch(FieldName,1,ObjComps)),
- ObjDef = fun(#'Object'{def=D}) -> D;
- (#'ObjectSet'{set=Set}) -> Set
- end
- (NewDef),
- case ObjDef of
- L when is_list(L) ->
- [get_fieldname_element(S,X,Rest) || X <- L];
- _ ->
- get_fieldname_element(S,ObjDef,Rest)
+ Object = (Def#typedef.typespec)#'Object'.def,
+ case check_fieldname_element(S, FieldName, Object) of
+ #'Object'{def=D} ->
+ get_fieldname_element(S, D, T);
+ #'ObjectSet'{set=Set0} ->
+ Set = [get_fieldname_element(S, X, T) || X <- Set0],
+ get_fieldname_return_set(Set)
end;
-get_fieldname_element(S,{object,_,Fields},[{_RefType,FieldName}|Rest]) ->
- NewDef = check_fieldname_element(S,lists:keysearch(FieldName,1,Fields)),
- get_fieldname_element(S,NewDef,Rest);
-get_fieldname_element(_S,Def,[]) ->
- Def;
-get_fieldname_element(_S,Def,[{_RefType,_FieldName}|_RestFName])
- when is_record(Def,typedef) ->
- ok.
+get_fieldname_element(S, {_,_,_}=Object, [{_RefType,FieldName}|T]) ->
+ Def = check_fieldname_element(S, FieldName, Object),
+ get_fieldname_element(S, Def, T);
+get_fieldname_element(_S, Def, []) ->
+ Def.
+
+get_fieldname_return_set([#valuedef{}|_]=L) ->
+ {valueset,L}.
+
+check_fieldname_element(S, Name, {_,_,Fields}) ->
+ case lists:keyfind(Name, 1, Fields) of
+ {Name,Def} ->
+ check_fieldname_element_1(S, Def);
+ false ->
+ asn1_error(S, {undefined_field,Name})
+ end.
-check_fieldname_element(S,{value,{_,Def}}) ->
- check_fieldname_element(S,Def);
-check_fieldname_element(S, #typedef{typespec=Ts}=TDef) ->
+check_fieldname_element_1(S, #typedef{typespec=Ts}=TDef) ->
case Ts of
#'Object'{} ->
check_object(S, TDef, Ts);
_ ->
check_type(S, TDef, Ts)
end;
-check_fieldname_element(S, #valuedef{}=VDef) ->
+check_fieldname_element_1(S, #valuedef{}=VDef) ->
try
check_value(S, VDef)
catch
@@ -1332,17 +1335,15 @@ check_fieldname_element(S, #valuedef{}=VDef) ->
ClassName = Type#type.def,
NewSpec = #'Object'{classname=ClassName,def=Def},
NewDef = #typedef{checked=C,pos=Pos,name=N,typespec=NewSpec},
- check_fieldname_element(S, NewDef)
+ check_fieldname_element_1(S, NewDef)
end;
-check_fieldname_element(_S, {value_tag,Val}) ->
+check_fieldname_element_1(_S, {value_tag,Val}) ->
#valuedef{value=Val};
-check_fieldname_element(S,Eref)
- when is_record(Eref,'Externaltypereference');
- is_record(Eref,'Externalvaluereference') ->
- {_,TDef}=get_referenced_type(S,Eref),
- check_fieldname_element(S,TDef);
-check_fieldname_element(S,Other) ->
- throw({error,{assigned_object_error,"not_assigned_object",Other,S}}).
+check_fieldname_element_1(S, Eref)
+ when is_record(Eref, 'Externaltypereference');
+ is_record(Eref, 'Externalvaluereference') ->
+ {_,TDef} = get_referenced_type(S, Eref),
+ check_fieldname_element_1(S, TDef).
transform_set_to_object_list([{Name,_UVal,Fields}|Objs],Acc) ->
transform_set_to_object_list(Objs,[{Name,{object,generatesyntax,Fields}}|Acc]);
@@ -2372,7 +2373,8 @@ normalize_integer(S, #'Externalvaluereference'{value=Name}=Ref, NNL) ->
asn1_error(S, illegal_integer_value)
end
end;
-normalize_integer(S, {'ValueFromObject',{object,Obj},FieldNames}, _) ->
+normalize_integer(S0, {'ValueFromObject',{object,Obj},FieldNames}, _) ->
+ S = S0#state{type=S0#state.value},
case extract_field(S, Obj, FieldNames) of
#valuedef{value=Val} when is_integer(Val) ->
Val;
@@ -6544,6 +6546,8 @@ format_error({syntax_undefined_field,Field}) ->
[Field]);
format_error({undefined,Name}) ->
io_lib:format("'~s' is referenced, but is not defined", [Name]);
+format_error({undefined_field,FieldName}) ->
+ io_lib:format("the field '&~s' is undefined", [FieldName]);
format_error({undefined_import,Ref,Module}) ->
io_lib:format("'~s' is not exported from ~s", [Ref,Module]);
format_error({value_reused,Val}) ->