Trait ErrorExt

pub trait ErrorExt: Sealed {
    type Output;

    // Required methods
    fn context<C>(self, context: C) -> Self::Output
       where C: IntoCowStr;
    fn with_context<C, F>(self, f: F) -> Self::Output
       where C: IntoCowStr,
             F: FnOnce() -> C;
}

A trait providing ergonomic chaining capabilities to Error.

Required Associated Types

type Output

The output type produced by context and with_context.

Required Methods

fn context<C>(self, context: C) -> Self::Output

where C: IntoCowStr,

Add context to this error.

fn with_context<C, F>(self, f: F) -> Self::Output

where C: IntoCowStr, F: FnOnce() -> C,

Add context to this error, using a closure for lazy evaluation.

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 ErrorExt for Error

type Output = Error

fn context<C>(self, context: C) -> Self::Output

where C: IntoCowStr,

fn with_context<C, F>(self, f: F) -> Self::Output

where C: IntoCowStr, F: FnOnce() -> C,

Implementors

impl ErrorExt for libbpf_rs::Error

type Output = Error

impl<T, E> ErrorExt for Result<T, E>

where E: ErrorExt,

type Output = Result<T, <E as ErrorExt>::Output>