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Formatter (#51)

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Enforce consistent formatting use `dprint`
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Luca Palmieri
2024-05-24 17:00:03 +02:00
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parent 537118574b
commit 99591a715e
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book/src/04_traits/03_operator_overloading.md
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@@ -5,11 +5,11 @@ Operator overloading is the ability to define custom behavior for operators like
## Operators are traits
In Rust, operators are traits.
In Rust, operators are traits.\
For each operator, there is a corresponding trait that defines the behavior of that operator.
By implementing that trait for your type, you **unlock** the usage of the corresponding operators.
By implementing that trait for your type, you **unlock** the usage of the corresponding operators.
For example, the [`PartialEq` trait](https://doc.rust-lang.org/std/cmp/trait.PartialEq.html) defines the behavior of
For example, the [`PartialEq` trait](https://doc.rust-lang.org/std/cmp/trait.PartialEq.html) defines the behavior of
the `==` and `!=` operators:
```rust
@@ -33,9 +33,9 @@ and replace `x == y` with `x.eq(y)`. It's syntactic sugar!
This is the correspondence for the main operators:
| Operator | Trait |
|--------------------------|-------------------------------------------------------------------------|
| ------------------------ | ----------------------------------------------------------------------- |
| `+` | [`Add`](https://doc.rust-lang.org/std/ops/trait.Add.html) |
| `-` | [`Sub`](https://doc.rust-lang.org/std/ops/trait.Sub.html) |
| `-` | [`Sub`](https://doc.rust-lang.org/std/ops/trait.Sub.html) |
| `*` | [`Mul`](https://doc.rust-lang.org/std/ops/trait.Mul.html) |
| `/` | [`Div`](https://doc.rust-lang.org/std/ops/trait.Div.html) |
| `%` | [`Rem`](https://doc.rust-lang.org/std/ops/trait.Rem.html) |
@@ -47,9 +47,9 @@ while comparison ones live in the [`std::cmp`](https://doc.rust-lang.org/std/cmp
## Default implementations
The comment on `PartialEq::ne` states that "`ne` is a provided method".
It means that `PartialEq` provides a **default implementation** for `ne` in the trait definition—the `{ ... }` elided
block in the definition snippet.
The comment on `PartialEq::ne` states that "`ne` is a provided method".\
It means that `PartialEq` provides a **default implementation** for `ne` in the trait definition—the `{ ... }` elided
block in the definition snippet.\
If we expand the elided block, it looks like this:
```rust
@@ -62,7 +62,7 @@ pub trait PartialEq {
}
```
It's what you expect: `ne` is the negation of `eq`.
It's what you expect: `ne` is the negation of `eq`.\
Since a default implementation is provided, you can skip implementing `ne` when you implement `PartialEq` for your type.
It's enough to implement `eq`:
@@ -80,7 +80,7 @@ impl PartialEq for WrappingU8 {
}
```
You are not forced to use the default implementation though.
You are not forced to use the default implementation though.
You can choose to override it when you implement the trait:
```rust