Struct gcmodule::RawCc

pub struct RawCc<T: ?Sized, O: AbstractObjectSpace>(_);

Low-level type for Cc<T>.

Methods

impl<T: Trace> RawCc<T, ObjectSpace>

pub fn new(value: T) -> Cc<T>

Constructs a new Cc<T> in a thread-local storage.

To collect cycles, use collect_thread_cycles.

impl<T: Trace, O: AbstractObjectSpace> RawCc<T, O>

pub fn into_dyn(self) -> RawCc<dyn Trace, O>

Convert to RawCc<dyn Trace>.

impl<T: Trace + Clone> RawCc<T, ObjectSpace>

pub fn update_with(&mut self, update_func: impl FnMut(&mut T))

Update the value T in a copy-on-write way.

If the ref count is 1, the value is updated in-place. Otherwise a new Cc<T> will be created.

impl<T: ?Sized, O: AbstractObjectSpace> RawCc<T, O>

pub fn trace(&self, tracer: &mut Tracer)

trace without T: Trace bound.

Useful for structures with Cc<T> fields where T does not implement Trace. For example, struct S(Cc<Box<dyn MyTrait>>). To implement Trace for S, it can use Cc::trace(&self.0, tracer).

impl<T: ?Sized> RawCc<T, ThreadedObjectSpace>

pub fn borrow(&self) -> ThreadedCcRef<T>

Immutably borrows the wrapped value.

The borrow lasts until the returned value exits scope.

Trait Implementations

impl<T, O: AbstractObjectSpace> Clone for RawCc<T, O>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for RawCc<T, O>

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

Formats the value using the given formatter.

impl<T: Debug> Display for RawCc<T, O>

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

Formats the value using the given formatter.

impl<T: ?Sized, O: AbstractObjectSpace> Drop for RawCc<T, O>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: Eq> Eq for RawCc<T, O>

impl<T: Ord> Ord for RawCc<T, O>

fn cmp(&self, other: &RawCc<T, O>) -> Ordering

This method returns an [Ordering] between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<T: PartialEq> PartialEq<RawCc<T, ObjectSpace>> for RawCc<T, O>

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

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

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

This method tests for !=.

impl<T: PartialOrd> PartialOrd<RawCc<T, ObjectSpace>> for RawCc<T, O>

fn partial_cmp(&self, other: &RawCc<T, O>) -> Option<Ordering>

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

fn lt(&self, other: &RawCc<T, O>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &RawCc<T, O>) -> bool

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

fn gt(&self, other: &RawCc<T, O>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &RawCc<T, O>) -> bool

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