Trait TryLog 

pub trait TryLog<T, R: Debug> {
    // Required methods
    fn inspect_or_log(self, msg: &str) -> Self;
    fn inspect_or_log_with<M: Display>(self, f: impl FnOnce() -> M) -> Self;
    fn unwrap_or_default_log(self, msg: &str) -> T
       where T: Default;
    fn unwrap_or_default_log_with<M: Display>(self, f: impl FnOnce() -> M) -> T
       where T: Default;
    fn unwrap_or_log(self, msg: &str) -> T;
    fn unwrap_or_log_with<M: Display>(self, f: impl FnOnce() -> M) -> T;
}

This trait provides the or-log methods.

Required Methods

fn inspect_or_log(self, msg: &str) -> Self

Log with log::Level::Info if the value is Err or None.

fn inspect_or_log_with<M: Display>(self, f: impl FnOnce() -> M) -> Self

Log with log::Level::Info if the value is Err or None.

The log message is returned by f.

fn unwrap_or_default_log(self, msg: &str) -> T

where T: Default,

Log with log::Level::Warn if the value is Err or None, and return a default value of T.

fn unwrap_or_default_log_with<M: Display>(self, f: impl FnOnce() -> M) -> T

where T: Default,

Log with log::Level::Warn if the value is Err or None, and return a default value of T.

The log message is returned by f.

fn unwrap_or_log(self, msg: &str) -> T

Log with log::Level::Error if the value is Err or None, and panic with the same error message.

fn unwrap_or_log_with<M: Display>(self, f: impl FnOnce() -> M) -> T

Log with log::Level::Error if the value is Err or None, and panic with the same error message.

The log message is returned by f.

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.

Implementors

impl<T, R: Debug, Tr: Try<Output = T, Residual = R>> TryLog<T, R> for Tr