Hi,

I have a SWIG project with two modules, let's call them A and B, which generate bindings for C# in two namespaces.

B depends on A and imports it like:

%import "A.i"

However, both modules define the same template instantiation:

%template(StringList) std::vector<std::string>;

In SWIG 4.3, this leads to the following warning:

warning 404: Duplicate template instantiation of 'vector< std::string >' with name 'StringList' ignored,

Removing the "duplicate" template from module B, does not work. The generated C# code will try to use B.StringList, but StringList is now only defined in module A.

Would it be possible to improve the duplicate detection to allow the same template instantiation to co-exist in different modules?

I think it is possible to work around this by adding some typemaps to let module B use the C# types from the other namespace, but that does not feel right.