feat: Add traits4.rs exercise
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// traits4.rs
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//
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// Your task is to replace the '??' sections so the code compiles.
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// Don't change any line other than 21.
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// I AM NOT DONE
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pub trait Licensed {
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fn licensing_info(&self) -> String {
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"some information".to_string()
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}
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}
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struct SomeSoftware {}
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struct OtherSoftware {}
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impl Licensed for SomeSoftware {}
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impl Licensed for OtherSoftware {}
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fn compare_license_types(software: ??, software_two: ??) -> bool {
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software.licensing_info() == software_two.licensing_info()
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn compare_license_information() {
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let some_software = SomeSoftware {};
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let other_software = OtherSoftware {};
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assert!(compare_license_types(some_software, other_software));
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}
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#[test]
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fn compare_license_information_backwards() {
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let some_software = SomeSoftware {};
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let other_software = OtherSoftware {};
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assert!(compare_license_types(other_software, some_software));
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}
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}
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11
info.toml
11
info.toml
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@ -716,6 +716,17 @@ implement the function themselves.
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See the documentation at: https://doc.rust-lang.org/book/ch10-02-traits.html#default-implementations
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"""
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[[exercises]]
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name = "traits4"
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path = "exercises/traits/traits4.rs"
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mode = "test"
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hint = """
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Instead of using concrete types as parameters you can use traits. Try replacing the
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'??' with 'impl <what goes here?>'
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See the documentation at: https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
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"""
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# QUIZ 3
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[[exercises]]
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