Slow Swift Array Type Inference
Slow compile time in Swift? Try to rearrange some of your expressions.
Update (2016-01-20): Bryan Irace (tweet):
I had a problem. The new iOS application that I’m working on – written 100% in Swift – was noticeably taking much longer to compile than should, given its size (~200 files). More concerning, it was suddenly a lot slower than only a couple of weeks prior. I needed to get to the root of the problem as soon as possible, before it got any worse.
The first step was to add
-Xfrontend -debug-time-function-bodiesto my Swift compiler flags […] This causes the compiler to print out how long it takes to compile each function […]
