Trait Context

pub trait Context<T> {
    // Required method
    fn err_context<C, F>(self, context: F) -> Result<T, Box<Error>>
       where C: Into<ImmutStr>,
             F: FnOnce() -> C;
}

Helper trait to add more context to a given error

Required Methods

fn err_context<C, F>(self, context: F) -> Result<T, Box<Error>>

where C: Into<ImmutStr>, F: FnOnce() -> C,

Wrap the Err(E) in Result with more context, the existing E will be the cause.

This is a shortcut for map_err() + more_context()

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> Context<T> for Result<T, Box<Error>>

fn err_context<C, F>(self, context: F) -> Result<T, Box<Error>>

where C: Into<ImmutStr>, F: FnOnce() -> C,

Implementors