rustlings

solving rustlings ft. dracuxan
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generics2.rs (668B)

      1 // This powerful wrapper provides the ability to store a positive integer value.
      2 // TODO: Rewrite it using a generic so that it supports wrapping ANY type.
      3 struct Wrapper<T> {
      4     value: T,
      5 }
      6 
      7 // TODO: Adapt the struct's implementation to be generic over the wrapped value.
      8 impl<T> Wrapper<T> {
      9     fn new(value: T) -> Self {
     10         Wrapper { value }
     11     }
     12 }
     13 
     14 fn main() {
     15     // You can optionally experiment here.
     16 }
     17 
     18 #[cfg(test)]
     19 mod tests {
     20     use super::*;
     21 
     22     #[test]
     23     fn store_u32_in_wrapper() {
     24         assert_eq!(Wrapper::new(42).value, 42);
     25     }
     26 
     27     #[test]
     28     fn store_str_in_wrapper() {
     29         assert_eq!(Wrapper::new("Foo").value, "Foo");
     30     }
     31 }