GCC Rust 2023

Diagnostics and error-code support for the GCC Rust frontend.

In Google Summer of Code 2023, I contributed to the GCC Rust frontend with a focus on diagnostics and error-code support.

The work improved how GCC Rust reports errors, making diagnostics easier to identify, document, and compare with rustc conventions. This matters for compiler usability: developers need errors that are searchable, stable, and precise enough to guide fixes.

Evidence and context: