Trait emacs::ResultExt

pub trait ResultExt<T, E> {
    fn or_signal<'e, S>(self, env: &'e Env, symbol: S) -> Result<T>
    where
        S: IntoLispSymbol<'e>;
}

Emacs-specific extension methods for the standard library’s Result.

Required methods

fn or_signal<'e, S>(self, env: &'e Env, symbol: S) -> Result<T> where
    S: IntoLispSymbol<'e>, 

Converts the error into a Lisp signal if this result is an Err. The first element of the associated signal data will be a string formatted with Display::fmt.

If the result is an Ok, it is returned unchanged.

Implementations on Foreign Types

impl<T, E: Display> ResultExt<T, E> for Result<T, E>

fn or_signal<'e, S>(self, env: &'e Env, symbol: S) -> Result<T> where
    S: IntoLispSymbol<'e>, 

Implementors