Overload Constructor with Array type parameter

[kwek20]

Hey!

Im trying to have 2 constructors in a class;

constructor TransferBuilder::with_outputs(outputs: Vec<TransferOutput>) -> TransferBuilder;
constructor TransferBuilder::new(address: Address, amount: u64) -> TransferBuilder;

Both of these constructors compile and work when I only enable one of the 2. But as soon as I enable both; I get the following error:

error: Can not generate JNI function name for overload method 'init',unknown java type 'TransferOutput[]'
      class TransferBuilder {

I looked at the error origin here:

flapigen-rs/macroslib/src/java_jni/rust_code.rs

Line 101 in 260f479

let type_name = java_type_to_jni_signature(ctx, type_name).ok_or_else(|| {

I tried to take a stab at the code; but couldnt find out how it would handle arrays (Adding escape_underscore around type_name didnt work)

It may be relevant that i use the following typemap to receive a vec on the rust side.

foreign_typemap!(
    ($p:r_type) Vec<TransferOutput> <= internal_aliases::JForeignObjectsArray<TransferOutput> {
        $out = jobject_array_to_vec_of_objects(env, $p);
    };
    ($p:f_type, option = "NoNullAnnotations") <= "TransferOutput[]";
    ($p:f_type, option = "NullAnnotations") <= "@NonNull TransferOutput[]";
);

Could you give me any pointers on how to fix this?

[Dushistov]

Yes, JNI requires special names for overloading functions.
But this case should be handled properly. See this.
During parsing TransferOutput as foreign_class should be registered signature L[ + class name.
So you need add debugging output around this and failed lines and find out why it can not find L[Class signature.