tree 72e33dc5cddd2d69b94ba96d7b15ac79184c8881
parent ced6bdbbec69742960ca3018e48c4425e1a4ad6a
author Nate Bosch <nbosch1@gmail.com> 1574373852 -0800
committer GitHub <noreply@github.com> 1574373852 -0800
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Small cleanup on single set add (#29)

- Add generic type on Set constructor.
- Use `??=` for null defaulting.
- Avoid the extra `set.contains` check since `set.add` already returns a
  bool indicating if the element is new.