rustlings

solving rustlings ft. dracuxan
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traits4.rs (818B)

      1 trait Licensed {
      2     fn licensing_info(&self) -> String {
      3         "Default license".to_string()
      4     }
      5 }
      6 
      7 struct SomeSoftware;
      8 struct OtherSoftware;
      9 
     10 impl Licensed for SomeSoftware {}
     11 impl Licensed for OtherSoftware {}
     12 
     13 // TODO: Fix the compiler error by only changing the signature of this function.
     14 fn compare_license_types(software1: impl Licensed, software2: impl Licensed) -> bool {
     15     software1.licensing_info() == software2.licensing_info()
     16 }
     17 
     18 fn main() {
     19     // You can optionally experiment here.
     20 }
     21 
     22 #[cfg(test)]
     23 mod tests {
     24     use super::*;
     25 
     26     #[test]
     27     fn compare_license_information() {
     28         assert!(compare_license_types(SomeSoftware, OtherSoftware));
     29     }
     30 
     31     #[test]
     32     fn compare_license_information_backwards() {
     33         assert!(compare_license_types(OtherSoftware, SomeSoftware));
     34     }
     35 }