Struct avalanche::shared::Shared

pub struct Shared<T: ?Sized> { /* fields omitted */ }

Implementations

impl<T> Shared<T>

pub fn new(val: T) -> Self

impl<T: ?Sized> Shared<T>

pub fn exec<Ret, F: FnOnce(&T) -> Ret>(&self, f: F) -> Ret

Executes the given function with an immutable reference to the wrapped value.

Arguments

• func - The function to execute with a reference to the wrapped value.

Panics

Panics if the wrapped value is being used by an exec_mut call. This is only possible if the method was called on a different Shared variable corresponding to the same shared value.

Example

let num = Shared::new(10u8);
let squared = num.exec(|&n| n * n);
assert_eq!(squared, 100);

pub fn exec_mut<Ret, F: FnOnce(&mut T) -> Ret>(&self, f: F) -> Ret

Executes the given function with a mutable reference to the wrapped value.

Arguments

• func - The function to execute with a reference to the wrapped value.

Panics

Panics if the wrapped value is being used by another exec or exec_mut call. This is only possible if the method was called on a different Shared variable corresponding to the same shared value.

Example

let sequence = Shared::new([1u8, 2, 3]);
sequence.exec_mut(|nums| nums.iter_mut().for_each(|num| *num *= *num));
sequence.exec(|nums| assert_eq!(nums, &[1, 4, 9]));

Trait Implementations

impl<T: ?Sized> Clone for Shared<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Default> Default for Shared<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> From<T> for Shared<T>

fn from(val: T) -> Self

Performs the conversion.