Re: [Swig-user] Problems with Java typemaps to replace an input object parameter with a different type

[Juan H. <jhe...@la...>]

Hello William,

Thanks for your answer

> I think might be missing something, but the type of the premature 
> garbage collection prevention parameter is always long 
Using the default typemaps, isn't the pgcp the same type as the input
parameter (Foo and B::Foo in this cases) and 'long' the actual parameter
passed to the underlying JNI function? Or am I misundertanding the
reference manual?

> and the following:
> %rename(BFoo) B::Foo;
> %typemap(jstype) B::Foo & "B.Foo"
> %typemap(javain) B::Foo & "B.Foo.getCPtr($javainput)"
> 
> generates:
>   public void f(B.Foo x) {
>     exampleJNI.Problematic_f__SWIG_1(swigCPtr, this, B.Foo.getCPtr(x), x);
>   }
> 
> which is what I think you want.
I'm still having a small compilation problem but the %rename was the
piece I was missing, it has to be guarded by %ifdef clauses depending on 
the module swig is processing but it basically works. Thanks for 
pointing it out! I think I'll be able to work out the rest on my own.

> PS don't forget you can used named typemaps by changing the typemap 
> types from B::Foo & to B::Foo &x to target just the x variable.
Sure, I've read it in the docs. However in this case I'm looking for a
global typemap if possible.

Best regards,
Juan