Trait ResultExt

pub trait ResultExt<T, E> {
    // Required method
    fn context<X>(self, x: X) -> Result<T, Context<X, E>>;
}

Result extension trait adding a context method

Required Methods

fn context<X>(self, x: X) -> Result<T, Context<X, E>>

The method is use to add context information to current operation

The context data is then used in error constructor to store additional information within error. For example, you may add a filename as a context for file operation. See crate documentation for the actual example.

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>

fn context<X>(self, x: X) -> Result<T, Context<X, E>>

Implementors