Slightly misleading wording in "From and Into" section (6.1)

[morzel85]

The https://doc.rust-lang.org/rust-by-example/conversion/from_into.html page states:

The From and Into traits are inherently linked, and this is actually part of its implementation. If you are able to convert type A from type B, then it should be easy to believe that we should be able to convert type B to type A.

This is correct but a bit awkward to read and might suggests that if I have a type Potato, which is convertible to MashedPotato, then it should be possible to convert MashedPotato back to Potato.

use std::convert::From;

#[derive(Debug)]
struct Number {
    value: i32,
}

impl From<i32> for Number {
    fn from(item: i32) -> Self {
        Number { value: item }
    }
}

fn main() {
    let num1 = Number::from(1);
    let num2: Number = 2.into();
    println!("My number with from is {:?}", num1);
    println!("My number with into is {:?}", num2);

    // This won't work unless conversion is implemented:
    // let int = i32::from(num1);
}

[marioidival]

I have a suggestion:

The From and Into features are inherently linked and this is actually part of their implementation. It should be easy to believe that we would be able to convert type B to type A, since we are able to convert type A to type B if From and Into are implemented.

What you think?

[marioidival]

Hi, I'm closing this issue just to clean up the items that already exist. If you think this issue makes sense to stay open, please create a new issue with updated information and mention this one.

thanks!