Xcode 6 with Swift super slow typing and autocompletion

Question

Is it just me or Xcode 6 (6.0.1) with Swift seems to be super slow when you type your code, especially with autocompletion?

A normal Objective-C cla

Answer 1

I had the same issues even in Xcode 6.3

• super slow autocompletions
• super slow indexing
• enormous CPU usage by swift and SourceKitService
• enormous Memory usage by SourceKitService

All this was happening even in relatively small project. I tried all the fixes I could find:

• deleting ~/Library/Developer/Xcode/DerivedData/*
• deleting ~/Library/Caches/com.apple.dt.Xcode/*
• remove all "+" String combining from the code
• removed all suspicious dictionary declarations

None of these actually helped in my project.

What actually solved my problem was:

• placing each end every class in its own file
• placing each and every extension in its own file (Class+ExtName.swift)
• placing "out of class swift methods" in its own file

Now I have close to zero CPU usage, low memory usage, and decently fast completions.