[ryanobjc]

Incrementally compiling a 3000 line file in 2011 as you edited it.

I'm sure the Jetbrains folks have fixed that right up, but at the time, breaking it into 500 line chunks was required, due to the exponential nature of the slowdown we accomplished.

The basic reality is Scala compiles are slow. Syntax and red-line highlighting isn't cheap, and no amount of brilliant russian IDE developers can totally fix everything.

[saryant]

2011 was a long time ago.

scalac certainly isn't fast but I just clean compiled our 20k line project in 75 seconds.

I'm not claiming that's great or anything, I just don't find it to be a showstopper.

[virtualwhys]

> Incrementally compiling a 3000 line file in 2011 as you edited it

Heh, that's brilliant, read the SBT compilation guide, 1 source file per class (obviously that's not set in stone, but a good guideline to follow).

Also, SBT is boss. Enabling automatic build in one's IDE is asking for pain. Why, why is the IDE blocking when I save the file? That's why.

> The basic reality is Scala compiles are slow

For deployment sure, but not a show stopper either (20K LOC in around a minute on warm JVM).

For incremental builds Scala is not even remotely slow, particularly if you follow best practices and break your application up into modules (sub projects in sbt world).

Anyway, things have changed (a lot) since 2011, we're not in the stone ages anymore -- if you want that, go check out Haskell where you'll get no tooling, no stack traces, and eternal compile times ;-) With a superior type system, brilliant community, yada, yada if that's your thing.