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No More Nulls

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

Notes

Today\\u2019s episode discusses, in order:

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• Enumerated types, with an eye to the difference between structs and enums, and to the differences between enums in C and in Rust.
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• 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.
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• Using the Option and Result enumerated types with pattern matching to provide meaningful returns from functions safely.
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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:

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

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• New Rustacean Pull Request #1
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• Work on IDE support!\\n
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  • Landing page
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  • My chosen tool: JetBrains/IntelliJ
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• Rustlings
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• Rust FFI Omnibus
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Follow/Support

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• New Rustacean:\\n
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  • Twitter: @newrustacean
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  • App.net: @newrustacean
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  • Patreon
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  • Email:
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• Chris Krycho\\n
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  • Twitter: @chriskrycho
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  • App.net: @chriskrycho
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