This is a tracking issue for the RFC "3681" (rust-lang/rfcs#3681). The feature gate for the issue is #![feature(default_field_values)]. Allow struct definitions to provide default values for indivi...
  • d_k_bo@feddit.org
    2·
    3 days ago

    This is really great and would solve the problem that led me to create constructor-lite.

    With this RFC, its usage could be replaced with

    #[derive(Debug, PartialEq)]
struct Movie {
    title: String,
    year: Option<u16> = None,
}

assert_eq!(
    Movie { title: "Star Wars".to_owned(), .. },
    Movie { title: "Star Wars".to_owned(), year: None },
)