internal static OneofAccessor ForRegularOneof(
OneofDescriptor descriptor,
PropertyInfo caseProperty,
MethodInfo clearMethod) =>
new OneofAccessor(
descriptor,
ReflectionUtil.CreateFuncIMessageInt32(caseProperty.GetGetMethod()),
ReflectionUtil.CreateActionIMessage(clearMethod));
internal static OneofAccessor ForSyntheticOneof(OneofDescriptor descriptor)
{
// Note: descriptor.Fields will be null when this method is called, because we haven't
// cross-linked yet. But by the time the delegates are called by user code, all will be
// well. (That's why we capture the descriptor itself rather than a field.)
return(new OneofAccessor(descriptor,
message => descriptor.Fields[0].Accessor.HasValue(message) ? descriptor.Fields[0].FieldNumber : 0,
message => descriptor.Fields[0].Accessor.Clear(message)));
}
private OneofAccessor(OneofDescriptor descriptor, Func <IMessage, int> caseDelegate, Action <IMessage> clearDelegate)
{
Descriptor = descriptor;
this.caseDelegate = caseDelegate;
this.clearDelegate = clearDelegate;
}