On Sat, Feb 16, 2013 at 11:44 PM, Nishar Nalakathu <[email protected]>wrote:
>
> I uses the following proto and code snippet to access the field options
> form a descriptor which is created by Importer.
>
> import "descriptor.proto";
> extend google.protobuf.FieldOptions {
> optional string index = 10000;
> }
> message order {
> optional string user = 1 [(index) = "hash"];
> }
>
> namespace pb = ::google::protobuf;
> const google::protobuf::FileDescriptor *
> fd=i->Import("order.proto");
> google::protobuf::DynamicMessageFactory factory;
> const google::protobuf::Descriptor * md=
> gfd::getfd()->FindMessageTypeByName("order");
> const pb::FieldDescriptor *fd = md->field(0);
> const pb::FieldOptions & fo = fd->options();
> const pb::Descriptor *fd_from_option = fo.GetDescriptor();
>
Use fo.GetReflection()->ListFields(fo, ...) to get a list of all fields
including extensions.
> for (int i = 0; i < fd_from_option->field_count(); ++i)
> {
> const pb::FieldDescriptor *fd = fd_from_option->field(i);
> cout<<"["<<fd->full_name()<<"]"<<endl;
> }
>
> But Iam getting only the following standard option, So is there any way I
> can get all the options including which I defined (index)?
> Actually, I want to provide some static attributes to some fields and get
> those attributes at the runtime.
>
> [google.protobuf.FieldOptions.ctype]
> [google.protobuf.FieldOptions.packed]
> [google.protobuf.FieldOptions.lazy]
> [google.protobuf.FieldOptions.deprecated]
> [google.protobuf.FieldOptions.experimental_map_key]
> [google.protobuf.FieldOptions.weak]
> [google.protobuf.FieldOptions.uninterpreted_option]
>
> Thank,
> Nishar
>
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