dynamic evaluation and node support about graaljs HOT 5 CLOSED

Hi Edmond,

thank you for your request. This is not possible at the moment. Graal JavaScript can be embedded both in JVM and in Node.js. To embedd Node.js (including Graal JavaScript) in the JVM is a whole different task - both are huge native applications that expect to control their environment. We'd need to change quite some Node code to get it working inside a JVM environment.

See #2 for some more explanation.

On the long run, this is definitly interesting and worth looking at. Right now, if you want this combination, you have to start of with a Node.js application and invoke your Java application from there.

Best,
Christian

from graaljs.

@wirthi Thanks for the clarification.

I guess there goes my excitement about true polyglot library interop... I am not the one doing the work so I won't push this but it might not require as big a lift, maybe some kind of java API for builtin nodejs functionality would probably do the trick.

from graaljs.

Something similar has been tried e.g. in Project Avatar. But that's a route we decided not to go, as it will bring all kinds of compatibility problems, and you have to keep up with the fast-moving source base of Node.js. Practically impossible.

With the call as you state it above, you do NOT want to start a new event loop, I guess. What you want to have in most cases is the possibility to submit entries to the (one) Node.js event loop (from Java, or another polyglot language). Such a feature is probably reasonable to provide to language. We are already evaluating options in that area.

from graaljs.

What you want to have in most cases is the possibility to submit entries to the (one) Node.js event loop (from Java, or another polyglot language).

So that would enable java to not simply execute a script, but have something like a long living js daemon that will be able to "send" something to java and vice-versa, right?

from graaljs.

+1 That it would be great if you added support for calling node.js at least once from JVM, even with the event loop cut off.

from graaljs.