Trait ResultExt

pub trait ResultExt<T, E> {
    // Required method
    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.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

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