carbon-language/carbon-lang v0.0.0-0.nightly.2025.10.30

Nightly build 2025.10.30

on GitHub

What's Changed

Toolchain and implementation changes 🛠️

• Add unit tagging to ImportCppId by @dwblaikie in #6288
• C++ Interop: Support getting void* from C++ functions and passing void* it to C++ function by @bricknerb in #6279
• C++ Interop: Add a test that demonstrates that const non nullable pointers are wrongly mapped to nullable (optional) pointers by @bricknerb in #6284
• Add support for ref patterns by @geoffromer in #6283
• Add a base struct for singleton type insts by @jonmeow in #6289
• Change ImplWitnessTablePlaceholder from instruction to InstId value by @jonmeow in #6294
• Actually do fingerprinting for InstFingerprinter::GetOrCompute with a CppOverloadSet by @danakj in #6296
• Fix diagnostic for argument count mismatch on call to generic constraint by @danakj in #6292
• Mask unexpected inst ids by @jonmeow in #6295

Utilities 📐

• Syntax highlight //@include-in-dumps as a valid comment by @danakj in #6299

Full Changelog: v0.0.0-0.nightly.2025.10.29...v0.0.0-0.nightly.2025.10.30