Trait ResultExt

pub trait ResultExt<T, E>: Sized {
    // Required methods
    fn extend_err<C>(self, cb: C) -> Result<T>
       where C: FnOnce(&E, &mut ErrorExtensionValues);
    fn extend(self) -> Result<T>;
}

Extend a Result’s error value with ErrorExtensions.

Required Methods

fn extend_err<C>(self, cb: C) -> Result<T>

where C: FnOnce(&E, &mut ErrorExtensionValues),

Extend the error value of the result with the callback.

fn extend(self) -> Result<T>

Extend the result to a Result.

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> ResultExt<T, E> for Result<T, E>

where E: ErrorExtensions + Send + Sync + 'static,

fn extend_err<C>(self, cb: C) -> Result<T>

where C: FnOnce(&E, &mut ErrorExtensionValues),

fn extend(self) -> Result<T>

Implementors