Trait ErrorContext 

pub trait ErrorContext<T, E>: Sealed {
    // Required methods
    fn error_context<C>(self, context: C) -> Result<T, GenericError>
       where C: Display + Send + Sync + 'static;
    fn with_error_context<C, F>(self, f: F) -> Result<T, GenericError>
       where C: Display + Send + Sync + 'static,
             F: FnOnce() -> C;
}

Helper methods for providing context on errors.

Slightly different than anyhow::Context as the methods on this trait are named to avoid conflicting with similarly-named methods provide by snafu.

Required Methods

fn error_context<C>(self, context: C) -> Result<T, GenericError>

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

Wrap the error value with additional context.

fn with_error_context<C, F>(self, f: F) -> Result<T, GenericError>

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

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, E> ErrorContext<T, E> for Result<T, E>

where Result<T, E>: Context<T, E>,

fn error_context<C>(self, context: C) -> Result<T, GenericError>

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

fn with_error_context<C, F>(self, context: F) -> Result<T, GenericError>

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

Implementors