Basic example: pass anyref as parameter and return value

anyref1.cpp

#include <cheerp/client.h>

namespace [[cheerp::genericjs]] client {
void jsFunc(client::Element* elem);
}

[[cheerp::wasm]]
[[cheerp::jsexport]]
client::Element* passAndReturn(client::Element* elem)
{
    jsFunc(elem);
    return elem;
}