Trait ErrorPrinter 

pub trait ErrorPrinter {
    // Required methods
    fn log_error<M: Display>(self, message: M) -> Self;
    fn log_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self;
    fn warn_error<M: Display>(self, message: M) -> Self;
    fn warn_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self;
    fn debug_error<M: Display>(self, message: M) -> Self;
    fn debug_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self;
    fn info_error<M: Display>(self, message: M) -> Self;
    fn info_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self;
}

A helper trait to log errors. The logging functions will track the caller’s callsite. For a chain of calls A -> B -> C -> ErrorPrinter, the topmost function without #[track_caller] is deemed the callsite.

Required Methods

fn log_error<M: Display>(self, message: M) -> Self

fn log_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

fn warn_error<M: Display>(self, message: M) -> Self

fn warn_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

fn debug_error<M: Display>(self, message: M) -> Self

fn debug_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

fn info_error<M: Display>(self, message: M) -> Self

fn info_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

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: Debug> ErrorPrinter for Result<T, E>

fn log_error<M: Display>(self, message: M) -> Self

If self is an Err(e), prints out the given string to tracing::error, appending “error: {e}” to the end of the message.

fn log_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

If self is an Err(e), calls the function to get a string to log to tracing::error, appending “error: {e}” to the end of the message.

fn warn_error<M: Display>(self, message: M) -> Self

If self is an Err(e), prints out the given string to tracing::warn, appending “error: {e}” to the end of the message.

fn warn_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

If self is an Err(e), calls the function to get a string to log to tracing::warn, appending “error: {e}” to the end of the message.

fn debug_error<M: Display>(self, message: M) -> Self

If self is an Err(e), prints out the given string to tracing::debug, appending “error: {e}” to the end of the message.

fn debug_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

If self is an Err(e), calls the function to get a string to log to tracing::debug, appending “error: {e}” to the end of the message.

fn info_error<M: Display>(self, message: M) -> Self

If self is an Err(e), prints out the given string to tracing::info, appending “error: {e}” to the end of the message.

fn info_error_fn<M: Display, F: FnOnce() -> M>(self, message_fn: F) -> Self

If self is an Err(e), calls the function to get a string to log to tracing::info, appending “error: {e}” to the end of the message.

Implementors