pub struct BJustClonePoint {
    x: f64,
    y: f64,
    z: f64,
}
Expand description

A struct which implements Clone but not Copy.

Examples

If you don’t do anything, the item will be moved on assignment:

let a_point = BJustClonePoint::origin();
let cloned_point = a_point;  // <- moves the value
println!("{:?}", a_point);  // <- compile error!
println!("{:?}", cloned_point);

The output is just what we would expect from the discussion on the show:

error[E0382]: use of moved value: `a_point`
--> <anon>:6:18
|
5 | let cloned_point = a_point;  // <- moves the value
|     ------------ value moved here
6 | println!("{:?}", a_point);  // <- compile error!
|                  ^^^^^^^ value used here after move
|
= note: move occurs because `a_point` has type `show_notes::e019::BJustClonePoint`, which does not implement the `Copy` trait

But you can manually call the clone method, and it will work:

let a_point = BJustClonePoint::origin();
let cloned_point = a_point.clone();
println!("{:?}", a_point);  // <- not a problem
println!("{:?}", cloned_point);

Fields§

§x: f64§y: f64§z: f64

Implementations§

Trait Implementations§

source§

impl Clone for BJustClonePoint

source§

fn clone(&self) -> BJustClonePoint

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
source§

impl Debug for BJustClonePoint

source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for Twhere T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.