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0 pointsowlstuffing2y ago0 comments

Of all the features most Java devs (and ex-Java devs) desire, algebraic types are near the bottom.

How about intersection and union types? (NO, sealed classes are not a substitute for unions).

But, yeah, in my view JDK 21 is a a disappointment. I rarely want pattern matching, but I would like properties please and records are nice, but actual tuples are more useful. Etc.

0 comments

smrtinsert2y ago

I would love a union type in Java, but I still enjoy the language, community and especially development experience. I wouldn't recommend it for everything, but it's sturdy by design and enjoyable for when it fits.

mx_022y ago

I'd love if interfaces worked as in typescript.

As long as the object signature matches the interface as parameter then you can use it.

owlstuffingOP2y ago

Check out project manifold, it’s a compiler plugin for Java. Among other amazing features it adds structural typing [1], which is essentially interfaces typescript interfaces.

1. https://github.com/manifold-systems/manifold/tree/master/man...

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