Trait LogError 

pub trait LogError<T, E>: Sized {
    // Required method
    fn log_level_with<F: FnOnce(E) -> String>(
        self,
        level: Level,
        cb: F,
    ) -> Option<T>;

    // Provided methods
    fn log_error_with<F: FnOnce(E) -> String>(self, cb: F) -> Option<T> { ... }
    fn log_warn_with<F: FnOnce(E) -> String>(self, cb: F) -> Option<T> { ... }
    fn log_error(self, msg: &str) -> Option<T>
       where E: Display { ... }
    fn log_error_detail(self, msg: &str) -> Option<T>
       where E: Debug { ... }
    fn log_warn(self, msg: &str) -> Option<T>
       where E: Display { ... }
    fn log_warn_detail(self, msg: &str) -> Option<T>
       where E: Debug { ... }
}

Trait to log the error result, there are impls for Result and Option by default.

Required Methods

fn log_level_with<F: FnOnce(E) -> String>( self, level: Level, cb: F, ) -> Option<T>

log the error with specific log-level and format handler

Provided Methods

fn log_error_with<F: FnOnce(E) -> String>(self, cb: F) -> Option<T>

log a error message with specific format handler

fn log_warn_with<F: FnOnce(E) -> String>(self, cb: F) -> Option<T>

log a warn message with specific format handler

fn log_error(self, msg: &str) -> Option<T>

where E: Display,

log the error with specific prefix

fn log_error_detail(self, msg: &str) -> Option<T>

where E: Debug,

log the error with specific prefix in a detailed format

fn log_warn(self, msg: &str) -> Option<T>

where E: Display,

log the error with specific prefix as a warn message

fn log_warn_detail(self, msg: &str) -> Option<T>

where E: Debug,

log the error with specific prefix in a detailed format as a warn message

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> LogError<T, E> for Result<T, E>

Implements LogError for Result

fn log_level_with<F: FnOnce(E) -> String>( self, level: Level, cb: F, ) -> Option<T>

impl<T> LogError<T, &'static str> for Option<T>

Implements LogError for Option

fn log_level_with<F: FnOnce(&'static str) -> String>( self, level: Level, cb: F, ) -> Option<T>

Implementors