Ariadne

A fancy compiler diagnostics crate.

Example

See examples/ for more examples.

About

ariadne is a sister project of chumsky. Neither are dependent on one-another, but I'm working on both simultaneously and like to think that their features complement each other. If you're thinking of using ariadne to process your compiler's output, why not try using chumsky to process its input?

Features

• Inline and multi-line labels capable of handling arbitrary configurations of spans
• Multi-file errors
• Generic across custom spans and file caches
• A choice of character sets to ensure compatibility
• Coloured labels & highlighting with 8-bit and 24-bit color support (thanks to yansi)
• Label priority and ordering
• Compact mode for smaller diagnostics
• Correct handling of variable-width characters such as tabs
• A ColorGenerator type that generates distinct colours for visual elements.
• A plethora of other options (tab width, label attach points, underlines, etc.)

Planned Features

• Improved layout planning & space usage
• Non-ANSI terminal support
• More accessibility options (screenreader-friendly mode, textured highlighting as an alternative to color, etc.)

Credit

Thanks to:

• @brendanzab for their beautiful codespan crate that inspired me to try pushing the envelope of error diagnostics.

• @estebank for showing innumerable people just how good compiler diagnostics can be through their work on Rust.