Making our Swift better
summary
Proposes a concrete standard‑library addition: a dictionary transform that maps values and drops nils while preserving keys, implemented as a new API and submitted to Swift Evolution. Implementation uses a pointer‑based implementation to avoid allocation overhead, comes with unit tests and microbenchmarks, and benchmarks show ~20× speedup over naive loops in some cases. Proposal undergoes week‑long review, is adjusted for source‑compatibility and performance, and is available across Swift 3–5 toolchains.
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chapters (7)
- 0:00Introduction to Swift improvements
- 1:55Open source contributions to Swift
- 3:41Performance optimization techniques
- 5:31Proposal process and community feedback
- 7:18Implementation and testing standards
- 8:48Proposal review and community discussion
- 10:19Future steps and community collaboration
