Trait narrate::ErrorWrap

source · [−]
pub trait ErrorWrap<T, E>where
    E: StdError + Send + Sync + 'static,{
    fn wrap<C, F>(self, f: F) -> Result<T, Error>
   where
        C: Display + Send + Sync + 'static,
        F: FnOnce() -> C;
    fn wrap_help<C, F>(self, f: F, help: &'static str) -> Result<T, Error>
   where
        C: Display + Send + Sync + 'static,
        F: FnOnce() -> C;
    fn wrap_help_owned<C, F>(self, f: F, help: String) -> Result<T, Error>
   where
        C: Display + Send + Sync + 'static,
        F: FnOnce() -> C;
}

Required Methods

Wrap an error value with additional context that is evaluated lazily only once an error does occur.

Lazily evaluated error wrapper, with an additional static help message

Lazily evaluated error wrapper, with an addition owned help message

Implementations on Foreign Types

Implementors