Struct Format 

pub struct Format<T>(pub T);

A utility for printing the whole source tree. of an error type.

use diskann_quantization::error::Format;
use std::{error::Error, fmt::{Display, Formatter, Result}};

#[derive(Debug)]
struct A;

impl Display for A {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        f.write_str("A")
    }
}

impl Error for A {
    fn source(&self) -> Option<&(dyn Error + 'static)> {
        Some(&B)
    }
}

#[derive(Debug)]
struct B;

impl Display for B {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        f.write_str("B")
    }
}

impl Error for B {}

assert_eq!(Format(A).to_string(), "A\n    caused by: B");
assert_eq!(Format(&A).to_string(), "A\n    caused by: B");

Tuple Fields

0: T

Trait Implementations

impl<T: Debug> Debug for Format<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Display for Format<T>

where T: Error,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.