What Scala can learn from Rust, Swift, and C++

on YouTube ↗42m

" summary

Compares concrete designs from Rust Swift and C++ to concrete Scala pain points and offers implemented prototypes: binary-search-like partition requires O(log n) predicate calls not just log n, Java-array-to-Index wrappers force a linear copy, and flattening fails when inner collections have no common type-class instance. Proposes experimental subcases for backtracking pattern matches, shows existential containers to pack values with witnesses for heterogeneous inner collections, and demonstrates retroactive conformance and the remaining associated-type / slice inference pitfalls.

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" chapters (10)

1. 0:00Introduction
2. 5:38Swift pattern matching
3. 6:01Scala collections critique
4. 15:55C++ and Rust generics
5. 18:27Rust and Swift type classes
6. 22:22Scala type classes
7. 27:54Scala existential containers
8. 32:47Rethinking collection indices
9. 34:55Swift and Scala slices
10. 41:00Summary

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