Struct movecell::MoveCell

pub struct MoveCell<T>(_);

A container similar to std::cell::Cell, but that also supports not-implicitly-copyable types.

Methods

impl<T> MoveCell<T>

fn new(value: T) -> MoveCell<T>

Create a new MoveCell containing the given value.

fn replace(&self, new_value: T) -> T

Return the inner value after replacing it with the given value.

unsafe fn as_unsafe_cell(&self) -> &UnsafeCell<T>

Returns a reference to the underlying UnsafeCell.

Unsafety

This method is unsafe because UnsafeCell's field is public.

impl<T: Default> MoveCell<T>

Convenience methods for when there is a default value.

fn take(&self) -> T

Return the inner value after replacing it with the default value.

fn peek<U, F>(&self, f: F) -> U where F: FnOnce(&T) -> U

Apply a function to a reference to the inner value. The cell’s contents are temporarily set to the default value during the call.

fn clone_inner(&self) -> T where T: Clone

Return a clone of the inner optional value. The cell’s contents are temporarily set to the default value during the clone.

impl<T> MoveCell<Option<T>>

Convenience methods for when the value happens to be an Option.

fn map<U, F>(&self, f: F) -> Option<U> where F: FnOnce(&T) -> U

Apply a function to a reference to the inner value if it is Some(_). The cell’s contents are temporarily set to None during the call.

fn is_some(&self) -> bool

Return whether the inner optional value is Some(_). The cell’s contents are temporarily set to None during the call.

fn is_none(&self) -> bool

Return whether the inner optional value is None(_). The cell’s contents are temporarily set to None during the call.

fn and_then<U, F>(&self, f: F) -> Option<U> where F: FnOnce(&T) -> Option<U>

Apply a function to a reference to the inner value if it is Some(_). The cell’s contents are temporarily set to None during the call.

Trait Implementations

impl<T: Default> Default for MoveCell<T>

fn default() -> MoveCell<T>

Returns the "default value" for a type.

impl<T: Default + Clone> Clone for MoveCell<T>

The cell’s contents are temporarily set to the default value during the clone.

fn clone(&self) -> MoveCell<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Default + Debug> Debug for MoveCell<T>

The cell’s contents are temporarily set to the default value during the formatting.

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

Formats the value using the given formatter.

impl<T: Default + Eq> Eq for MoveCell<T>

The cell’s contents are temporarily set to the default value during the comparaison.

impl<T: Default + PartialEq> PartialEq for MoveCell<T>

The cell’s contents are temporarily set to the default value during the comparaison.

fn eq(&self, other: &MoveCell<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &MoveCell<T>) -> bool

This method tests for !=.