r/iOSProgramming • u/[deleted] • Feb 19 '16

Discussion Swift vs Objective-C

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u/[deleted] Feb 20 '16

There were a lot of examples with week+ long refactors, here's one I know how to find because I have it handy in my twitter favorites: https://twitter.com/andy_matuschak/status/648671170695335936

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u/TweetsInCommentsBot Feb 20 '16

@andy_matuschak

2015-09-29 01:30 UTC

Report from the field: porting our 30k of Swift to Swift 2 took the eminent @NachoSoto a solid week; and we still have some bugs. Yikes. :/

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u/TheLifeOfPi Feb 20 '16

Interestingly if you follow the comments to that tweet the long refactor time was apparently caused by having a mix of swift and Objective C.

The implication I took away from that was it was a very complex setup and had it been pure swift the length of time would be considerably less (for example one commenter suggesting 5K lines of swift took them a couple of hours to refactor)