Rustcast #6 - traits From and Into in Rust programming language

This tutorial explains traits From and Into, which are widely used for data type conversion in Rust.
They may be considered as an alternative to method overriding (that does not exist in Rust), which
allows you defined user friendly generic functions, that can work with different data types.

In the video you will also find a little coding session with an example.

BOOKS:

CONTENT:
* Introduction of From and Into traits
* Taking a look at implementations of From trait in the standard library
* Coding session with an example how From and Into traits can be used in order to build a better function API.

LINKS:

This video was produced with the following open source software:

[veciolupo]

Works great for me. Thanks Sergey for a detailed explanation!

[eignnx_]

Wow I had no idea about f64: From<TA> + From<TB> syntax! It's like there's a prolog interpreter inside the type system!

[meuko]

Wonderful video! Thank you for showing the last part; I saw the + operator being used in source code using From and it boggled my mind! Not anymore!

[Renni-kgvf]

Would be nice if you explained how to implement your own from and into

[WindBringsMemories]

Great job at making these video's man!

[jlovas]

Hi, It was inspiring all this:

pub fn add(a: impl Into<f64>, b: impl Into<f64>) -> f64 {
a.into() + b.into()
}
[...]
pub fn add<TS: Add>(a: impl Into<TS>, b: impl Into<TS>) -> <TS as std::ops::Add>::Output {
a.into() + b.into()
}
[...]
pub fn add<TS: Add>(a: impl Into<TS>, b: impl Into<TS>) -> TS::Output {
a.into() + b.into()
}