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m06-error-handling

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CRITICAL: Use for error handling. Triggers: Result, Option, Error, ?, unwrap, expect, panic, anyhow, thiserror, when to panic vs return Result, custom error, error propagation, 错误处理, Result 用法, 什么时候用 panic

When to use

• Choosing between Result and Option
• Deciding when to panic vs return Result
• Selecting thiserror for library code
• Selecting anyhow for application code
• Propagating errors with context
• Handling custom error types
• Resolving unwrap panics
• Designing error granularity

When not to use

• Domain error strategy details
• Crate boundary management
• Type-safe error implementation details
• Mental model construction

Skill page

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