Trait ErrorContext

pub trait ErrorContext: Sealed {
    // Required methods
    fn context<C: Display>(self, context: C) -> Self;
    fn with_context<C: Display>(self, f: impl FnOnce(&Error) -> C) -> Self;
}

Provides the context method for Error and Result<T, Error>.

Required Methods

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

Wraps the error value with additional context.

fn with_context<C: Display>(self, f: impl FnOnce(&Error) -> C) -> Self

Wrap the error value with additional context that is evaluated lazily only once an error does occur.

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> ErrorContext for Result<T, Error>

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

fn with_context<C: Display>(self, f: impl FnOnce(&Error) -> C) -> Self

Implementors

impl ErrorContext for Error