diff options
Diffstat (limited to 'exercises/15_traits/traits3.rs')
| -rw-r--r-- | exercises/15_traits/traits3.rs | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/exercises/15_traits/traits3.rs b/exercises/15_traits/traits3.rs index 4e2b06b..2e8969e 100644 --- a/exercises/15_traits/traits3.rs +++ b/exercises/15_traits/traits3.rs @@ -1,16 +1,10 @@ -// traits3.rs -// -// Your task is to implement the Licensed trait for both structures and have -// them return the same information without writing the same function twice. -// -// Consider what you can add to the Licensed trait. -// -// Execute `rustlings hint traits3` or use the `hint` watch subcommand for a -// hint. +#![allow(dead_code)] -// I AM NOT DONE - -pub trait Licensed { +trait Licensed { + // TODO: Add a default implementation for `licensing_info` so that + // implementors like the two structs below can share that default behavior + // without repeating the function. + // The default license information should be the string "Default license". fn licensing_info(&self) -> String; } @@ -22,8 +16,12 @@ struct OtherSoftware { version_number: String, } -impl Licensed for SomeSoftware {} // Don't edit this line -impl Licensed for OtherSoftware {} // Don't edit this line +impl Licensed for SomeSoftware {} // Don't edit this line. +impl Licensed for OtherSoftware {} // Don't edit this line. + +fn main() { + // You can optionally experiment here. +} #[cfg(test)] mod tests { @@ -31,7 +29,7 @@ mod tests { #[test] fn is_licensing_info_the_same() { - let licensing_info = String::from("Some information"); + let licensing_info = "Default license"; let some_software = SomeSoftware { version_number: 1 }; let other_software = OtherSoftware { version_number: "v2.0.0".to_string(), |