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New Rustacean
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A show about the Rust programming language and the people who use it.

e003: No. more. nulls.

October 21, 2015 16:51 8.37 MB Downloads: 0

No More Nulls

Subject: Enumerated (enum) types, pattern matching, and meaningful return types.

Notes

Today’s episode discusses, in order:

  • Enumerated types, with an eye to the difference between structs and enums, and to the differences between enums in C and in Rust.
  • Pattern matching, with a focus on using them with enumerated types and some discussion about how they differ from switch blocks in C-like languages.
  • Using the Option and Result enumerated types with pattern matching to provide meaningful returns from functions safely.

Order

There is a specific order to the examples below, and it is not the automatically-alphabetized order rendered by rustdoc. Instead, you should work through in the sequence they appear in the source:

  1. RelatedishThings
  2. demonstrate_basic_enumeration
  3. demonstrate_match
  4. get_an_option
  5. demonstrate_option
  6. get_a_result
  7. demonstrate_result

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