Trait libimagerror::trace::MapErrTrace

pub trait MapErrTrace {
    type Output;
    fn map_err_trace(self) -> Self;
    fn map_err_trace_exit_unwrap(self, code: i32) -> Self::Output;
}

Helper functions for Result<T, E> types to reduce overhead in the following situations:

function().map_err(|e| { trace_error(&e); e })

and variants

Associated Types

type Output

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Required methods

fn map_err_trace(self) -> Self

fn map_err_trace_exit_unwrap(self, code: i32) -> Self::Output

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Implementations on Foreign Types

impl<U> MapErrTrace for Result<U, Error>

type Output = U

fn map_err_trace(self) -> Self

Simply call trace_error() on the Err (if there is one) and return the error.

This does nothing besides the side effect of printing the error trace

fn map_err_trace_exit_unwrap(self, code: i32) -> Self::Output

Trace the error and exit or unwrap the Ok(_).

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Implementors

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