Trait ResultErrorWhile 

pub trait ResultErrorWhile<C> {
    type ContextError;

    // Required methods
    fn error_while(self, context: C) -> Self::ContextError;
    fn error_while_with<F>(self, context: F) -> Self::ContextError
       where F: FnOnce() -> C;
}

Add context to error carried by another type like Result

Required Associated Types

type ContextError

Required Methods

fn error_while(self, context: C) -> Self::ContextError

fn error_while_with<F>(self, context: F) -> Self::ContextError

where F: FnOnce() -> C,

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl<O, E, C> ResultErrorWhile<C> for Result<O, E>

where E: WithContext<C, ContextError = E>,

type ContextError = Result<O, E>

fn error_while(self, context: C) -> Self

fn error_while_with<F>(self, context: F) -> Self::ContextError

where F: FnOnce() -> C,

Implementors