Now that the JDK 24 is out (yay!), JEP 484: Class-File API is delivered. Which is way, way cool. It's a bit slow going because Goetz redesigned the whole API, rather than just incorporating ASM into the base JDK. You can hear him jar on this here www.youtube.com/watch?v=pcg-... - ThreadSky

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constantinejn.bsky.social • 10 days ago

Now that the JDK 24 is out (yay!), JEP 484: Class-File API is delivered. Which is way, way cool. It's a bit slow going because Goetz redesigned the whole API, rather than just incorporating ASM into the base JDK. You can hear him jar on this here
https://www.youtube.com/watch?v=pcg-E_qyMOI

Comments

constantinejn.bsky.social•10 days ago

I think this was an excellent idea, as I got to say that as much as I honor the venerable Visitor pattern, I am really fucking sick of dat shit.

So with Sealed Classes (released a couple of releases ago) and the spiffy pattern matching in switch statements... I got to say that I agree with the man.

constantinejn.bsky.social•10 days ago

Again, it's still a struggle because I don't have a shit load of time to dedicate these days and it is a non trivial API - not to mention the non trivial transform I'm doing to support the Event Driven Transform (tm) of PrimeMover...

constantinejn.bsky.social•10 days ago

But it has dropped me into the deep end on a lot of JEPs (like Sealed Classes) that I really haven't had any excuse to look at, much less actually use in anything. And really. The pattern matching capabilities of JEP 394 is truly wonderful
https://openjdk.org/jeps/394

constantinejn.bsky.social•10 days ago

This kind of pattern matching (with guards!) capabilities does not just make it elegant and trivial to replace Visitor patterns, but it's also a close analog to Erlang's pattern matching which I have always had a deep abiding envy for.

constantinejn.bsky.social•10 days ago

Not enough to switch to Erlang, mind you, but certainly that grass was pretty green and I really wanted that on my side of the fence.

constantinejn.bsky.social•10 days ago

So that is kind of cool. I'll be able to drop the ASM dependency for PrimeMover and sew that up into a bow before support for ASM withers to zero.

And it gets me coding a bit more and exercising ye brain cells on stuff that isn't just fall of a log easy and such.

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