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Types · easy

12. Enums

Sum types that carry data.

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Enums list variants, each optionally holding data of different shapes. This makes illegal states unrepresentable — a common Rust design habit. `match` on an enum must be exhaustive, so adding a variant surfaces every place needing an update.

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Check your understanding

  1. 1. Can enum variants hold data?

  2. 2. Match on an enum must be…

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