Instruments

[Martin Entlicher]

Hi Marc,

the language and instrument implementation should be on the 
truffle.class.path.append, but the "MyClass", which needs to be 
accessible from the launcher, needs to be on an ordinary class path, I 
believe.

Martin


On 17. 12. 18 17:17, Marc Petit-Huguenin wrote:
> Hi,
>
> I am trying to implement a simple Instrument.  That instrument contains an abstract class as a service that I want to use in my language launcher by using engine.getInstruments().get("myinstrument").lookup(MyClass.class), and in my language implementation using env.lookup(env.getInstruments().get("myinstrument"), MyClass.class).
>
> The path for the instrument implementation is added to the truffle.class.path.append property, as is the path for the language implementation, and I can retrieve a MyClass instance in the language implementation.  But I cannot retrieve an instance in the launcher (i.e. it returns null), probably because of a different class loader.  I tried with -XX:-UseJVMCIClassLoader, that did not help.
>
> What am I doing wrong?
>
> Thanks.
>