is changing `Array` -> `FrozenArray` binary compatible?

[yurique]

After updating 2.3.0 -> 2.6.0 (as part of Laminar update) I got a compilation error in this piece of code:

Option(ev.dataTransfer).exists(_.types.contains(format))

types became a FrozenArray and no longer has the .contains method.

So this is obviously not source-compatible (which is okay and expected), but is it binary compatible?

PR:
#763

Relevant change:
976316c#diff-bee8c85a4317c93e362f64be85e566c7583875855b80a078cc8dddc277700a72R78

[armanbilge]

Yes, see:

• Enable MiMa #461 (comment)

Specifically:

Most changes in the DOM facades belong to one of those, since it is often fixing types and adding members in classes/traits. They would be flagged as false positives.

[yurique]

Right, this does make sense in the context of js+dom :)

Thanks!

Are there extension methods for the frozen array somewhere? (To get the .contains back, for example)

[armanbilge]

Are there extension methods for the frozen array somewhere? (To get the .contains back, for example)

I guess not, sorry about that 😕 we should add them, or find some other solution.

[yurique]

No worries! (there are always workarounds to be found :) )