Struct BetterRefCell

pub struct BetterRefCell<T: ?Sized> { /* private fields */ }

Implementations

impl<T> BetterRefCell<T>

pub const fn new(value: T) -> Self

pub fn into_inner(self) -> T

pub fn replace(&self, t: T) -> T

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

pub fn swap(&self, other: &Self)

impl<T: ?Sized> BetterRefCell<T>

pub fn borrow(&self) -> Ref<'_, T>

pub fn try_borrow(&self) -> Result<Ref<'_, T>, BorrowError>

pub fn borrow_mut(&self) -> RefMut<'_, T>

pub fn try_borrow_mut(&self) -> Result<RefMut<'_, T>, BorrowMutError>

pub fn as_ptr(&self) -> *mut T

pub fn get_mut(&mut self) -> &mut T

pub unsafe fn try_borrow_unguarded(&self) -> Result<&T, BorrowError>

impl<T: Default> BetterRefCell<T>

pub fn take(&self) -> T

impl<T: ?Sized> BetterRefCell<T>

pub fn unborrow<R>(&self, borrowed: &mut T, f: impl FnOnce() -> R) -> R

Panics

This function panics if any of the following conditions are met:

1. The borrowed reference does not point to the internal value stored in this BetterRefCell.
2. Any borrow guards obtained from this BetterRefCell within f are still active after f completes.

pub unsafe fn unborrow_unchecked<R>( &self, borrowed: &mut T, f: impl FnOnce() -> R, ) -> R

Safety

This function is safe to call if all of these conditions are met:

1. The borrowed reference must point to the internal value stored in this BetterRefCell.
2. Any borrow guards obtained from this BetterRefCell outside of f must not be used within f.
3. All borrow guards obtained from this BetterRefCell within f must be dropped before f returns.

pub fn unborrow_ref<R>(&self, borrowed: &T, f: impl FnOnce() -> R) -> R

Panics

This function panics if any of the following conditions are met:

1. The borrowed reference does not point to the internal value stored in this BetterRefCell.
2. Any Refs obtained from this BetterRefCell within f are still active after f completes, while at least one RefMut for this BetterRefCell exists outside the scope of f.

pub unsafe fn unborrow_ref_unchecked<R>( &self, borrowed: &T, f: impl FnOnce() -> R, ) -> R

Safety

This function is safe to call if all of these conditions are met:

1. The borrowed reference must point to the internal value stored in this BetterRefCell.
2. Any borrow guards obtained from this BetterRefCell outside of f must not be used within f.
3. All borrow guards obtained from this BetterRefCell within f must be dropped before f returns.

Trait Implementations

impl<T: Clone> Clone for BetterRefCell<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 BetterRefCell<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> From<T> for BetterRefCell<T>

fn from(t: T) -> Self

Converts to this type from the input type.

impl<T: ?Sized + Ord> Ord for BetterRefCell<T>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T: ?Sized + PartialEq> PartialEq for BetterRefCell<T>

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: ?Sized + PartialOrd> PartialOrd for BetterRefCell<T>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Self) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Self) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Self) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Self) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: ?Sized + Eq> Eq for BetterRefCell<T>