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So, the Swift compiler is slow? I mean, I expected it to be slower than Objective-C due to its dynamic nature, but that slow?

Disclosure: I write Android apps, so I'm only occasionally peeking at how the iOS dev scene is developing. I've already been thinking of trying to write Android apps in Scala, but maybe this Swift to Java compiler is also worth looking at

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From what I known, Kotlin or Xtend are better options than Scala, regarding execution speed of the current code generation and package size, even with ProGuard.

No, not really.

Any available benchmarks?

Considering this downvoting-because-I-don't-like-being-wrong ... maybe just benchmark it yourself.

If you have time for making stuff up and downvoting, then you surely have time to run some benchmarks.

Apple only just today released an update to the compiler that enabled incremental builds. Before that it had to recompile everything every time. That alone will probably make a big difference.

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