brendanzab/codespan

Health v2 · maintenance only

Adoption not part of the score

1296 stars · 69 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Rust library (codespan-reporting) for rendering beautiful, compiler-style diagnostic error messages for text-based programming languages, plus codespan data structures for tracking source code locations. Inspired by the rich error output of Rust and Elm.

Use cases

• render rust-style compiler error messages for my language
• pretty print diagnostics with source snippets and labels
• track byte offsets and line/column positions in source code
• build a compiler or interpreter with nice error output
• show annotated source code spans in a terminal

When to choose

• you are building a compiler, interpreter, or linter in Rust and want high-quality error rendering
• you need source location tracking alongside diagnostic reporting
• you want terminal output similar to rustc or Elm compiler errors

When to avoid

• you need diagnostics in a language other than Rust
• you only need simple logging rather than source-annotated diagnostics
• you need GUI or web-based diagnostic rendering

Facets

library · maturity active

error-handling developer-tools terminal-ui programming-languages developer-tools parsers rust cli cross-platform diagnostics error-reporting compiler-tooling source-locations compiler

Member repositories

For agents

markdown · JSON · MCP: product_card(name="brendanzab/codespan")