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RBS, Ruby’s new type signature language

(developer.squareup.com)
511 points mootrichard | 1 comments | 29 Jul 20 18:04 UTC | HN request time: 0.211s | source
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freedomben ◴[29 Jul 20 19:31 UTC] No.23990680[source]▶
I'm not thrilled about the separate files with the type information but I completely understand why they did it, and if it were my choice I might make the same one.

I don't like the comparison with TypeScript `.d.ts` files however, because TS still lets you do types inline in the code. I haven't seen it mentioned anywhere that this won't be supported by Ruby 3.

Does anybody know if Ruby 3 will also support inline type information or will the header RBS files be required?

replies(3): >>23990915 #>>23991508 #>>23992127 #
1. jrochkind1 ◴[29 Jul 20 22:08 UTC] No.23992127[source]▶
If you completely understand why they did it, can you explain it to me?

> Does anybody know if Ruby 3 will also support inline type information or will the header RBS files be required?

Wait, what are we talking about? I thought this was the decision you said you completely understood, that the type information is in separate .rbs files. Isn't ruby 3 what we're talking about?