Intercepting JVM function calls from JS code?

[lukehutch]

Hi, I want to log all JVM function calls made from JS (function name and parameter values on entrance; result value or exception on exit).

I looked at all the documentation I could find on interception, and the tests in the git repo, and I can't see a way to do this.

Is this possible?

[caoccao]

You can do that by creating your own proxy converter.

[lukehutch]

I see an example of how toV8Value can be overridden on this page, and I see that a superclass defines toObject. So now I see that I can intercept individual value conversions quite simply. However, how can I get notified of the name of the function that is being called, and which argument values correspond with which parameters?