Trait AddContext 

pub trait AddContext<T, Err, CtxErr> {
    // Required method
    fn add_context<D, F>(self, f: F) -> Result<T, CtxErr>
       where D: Display,
             F: FnOnce() -> D;
}

The trait to add error context info to a Result<T, E>

Required Methods

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

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

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> AddContext<T, AnyError, AnyError> for Result<T, AnyError>

When adding context info, convert an AnyError to another AnyError.

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

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

Implementors