github carbon-language/carbon-lang v0.0.0-0.nightly.2025.12.12
Nightly build 2025.12.12

What's Changed

Toolchain and implementation changes 🛠️

  • Consolidate error handling behaviour for ApplyExtendImplAs (Refactor Impl construction 4/7) by @danakj in #6468
  • Check the orphan rule for impls by @danakj in #6488
  • Added string indexing by @ammaralassal in #6329
  • Add well-known identifier caching by @jonmeow in #6486
  • Clean up helpers for GetOrAddImpl (Refactor Impl construction 5/7 and 6/7) by @danakj in #6469
  • Defer RequireCompleteType to impl definition (Refactor Impl construction 7/7) by @danakj in #6470

New Contributors

Full Changelog: v0.0.0-0.nightly.2025.12.11...v0.0.0-0.nightly.2025.12.12

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