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", so this trait is not object safe.

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