Designing Generic slices and maps Packages in Go
summary
Go’s generics (since 1.18) enabled adding two new standard-library packages: slices and maps. The slices package provides about 30 helper functions (clone, insert, concat, delete, compact, etc.), and implementations now nil out removed elements to avoid memory retention; govet will warn when a delete’s return value is ignored. The maps package brings most experimental functions but is missing Clear/Keys/Values from the experiment and its iterator design is still undecided.
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chapters (8)
- 0:00Introduction
- 1:25Go design choices
- 3:53Slices and maps before generics
- 6:01Slices and maps packages
- 8:46Slice memory manipulation
- 10:13Delete function pitfalls
- 12:59Memory leaks and proposal
- 14:26Conclusion
