Trait FutureErrorContext

pub trait FutureErrorContext: Future + Sized {
    // Required methods
    fn context<D>(self, context: D) -> ContextFut<Self, D>
       where D: Display + Send + Sync + 'static;
    fn with_context<D, F>(self, f: F) -> WithContextFut<Self, F>
       where D: Display + Send + Sync + 'static,
             F: FnOnce() -> D;
}

“Context” support for futures.

Required Methods

fn context<D>(self, context: D) -> ContextFut<Self, D>

where D: Display + Send + Sync + 'static,

Add context to the error returned by this future

fn with_context<D, F>(self, f: F) -> WithContextFut<Self, F>

where D: Display + Send + Sync + 'static, F: FnOnce() -> D,

Add context created by provided function to the error returned by this future

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.

Implementors

impl<F, E> FutureErrorContext for F

where F: Future<Error = E> + Sized, E: Into<Error>,