Error handling Isn't All About Errors
summary
Claims error handling splits into concrete parts — define, propagate, match/react, discard, report — and shows how that framing guides tool choice. Builds and demos air plus color error hooks to produce rich reports (command, stdout/stderr sections, suggestions, hidden span backtraces) and shows it works end to end. Surveys libraries for each part: anyhow, thiserror, displaydoc, snafu, tracing, extract_error and notes reporters can’t implement Error so they don’t compose well for libraries.
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chapters (10)
- 0:00Introduction
- 1:00Why Error Handling
- 3:28Fundamentals
- 7:10Propagation
- 7:43Error trait
- 10:36Simple errors
- 13:09Error reporters
- 18:07Tips
- 22:27Useful Libraries
- 26:02Discarding Errors
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