Contributing to Swift for the First Time
summary
Shows a concrete contribution: a performance fix in corelibs Foundation’s index set union that replaces repeated inserts by copying and inserting the smaller set into the larger, yielding up to ~100x speedups on some inputs. Walks through cloning (use shallow clone), installing the Swift toolchain snapshot, testing in an Xcode playground and CI, adding unit tests, squashing and rebasing, and submitting a concise PR that lands the next day. Practical tips cover reading the README twice and courtesy-pinging reviewers.
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chapters (10)
- 0:00Introduction
- 1:00Contributing to Swift
- 5:18Swift Tool Chain
- 7:17Finding Performance Improvements
- 10:32Testing
- 13:55Pro Tips
- 16:58Pull Requests
- 21:05Documentation
- 30:07Declarative UI
- 31:32Greatest Learning
