Trait Context 

pub trait Context<T> {
    // Required methods
    fn context(self, context: impl Display) -> Result<T>;
    fn with_context<F, D>(self, f: F) -> Result<T>
       where F: FnOnce() -> D,
             D: Display;
}

anyhow-style context extension for Result and Option.

Required Methods

fn context(self, context: impl Display) -> Result<T>

Wrap the error with additional context.

fn with_context<F, D>(self, f: F) -> Result<T>

where F: FnOnce() -> D, D: Display,

Lazily wrap the error with additional context.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

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

where E: Error + Send + Sync + 'static,

fn context(self, context: impl Display) -> Result<T>

fn with_context<F, D>(self, f: F) -> Result<T>

where F: FnOnce() -> D, D: Display,

impl<T> Context<T> for Option<T>

fn context(self, context: impl Display) -> Result<T>

fn with_context<F, D>(self, f: F) -> Result<T>

where F: FnOnce() -> D, D: Display,

Implementors