Trait Z

pub trait Z {
    type Error;

    // Required methods
    fn long_form(&self) -> String;
    fn with_info<X: Debug>(self, name: &str, value: X) -> Self::Error;
    fn with_lazy_info<F: FnOnce() -> String>(
        self,
        name: &str,
        value: F,
    ) -> Self::Error;
}

The core type of zerror. Implement this trait, or wrap and proxy ErrorCore, to create rich errors in the long_form. This integrates with the error handling “monad” over Result<T, Z>.

Required Associated Types

type Error

The type of error returned from the with_* methods.

Required Methods

fn long_form(&self) -> String

Convert an error to a string free from “=”*80.

fn with_info<X: Debug>(self, name: &str, value: X) -> Self::Error

Add debug formatting of a local variable.

fn with_lazy_info<F: FnOnce() -> String>( self, name: &str, value: F, ) -> Self::Error

Add debug formatting using a closure.

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<T, E: Z<Error = E>> Z for Result<T, E>

type Error = Result<T, E>

fn long_form(&self) -> String

fn with_info<X: Debug>(self, name: &str, value: X) -> Self::Error

fn with_lazy_info<F: FnOnce() -> String>( self, name: &str, value: F, ) -> Self::Error

Implementors