comet_api::gcref

Struct WeakSlot

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pub struct WeakSlot { /* private fields */ }

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impl FinalizeTrait<WeakSlot> for WeakSlot

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const NON_TRIVIAL_DTOR: bool = _

If true finalizer is executed at the end of GC cycle for this type. In most cases compiler should be smart enough to determine if NON_TRIVIAL_DTOR is true but in some rare unsafe cases you might set it to false by yourself.
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const CALLBACK: Option<extern "C" fn(*mut u8)> = _

Finalization callback executed by GC at the end of GC cycle. It defaults to FinalizeTrait::finalize.
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extern "C" fn finalize(obj: *mut u8)

Callback that is executed at the end of GC cycle. It invokes T::drop by default.
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impl TraceTrait for WeakSlot

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fn trace(&self, vis: &mut Visitor)

Function invoking the tracing for an object of type T. Read more
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extern "C" fn trace_(vis: *mut Visitor, this: *const u8)

trace_ method is used for C FFI safety.
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fn get_trace_descriptor(this: *const u8) -> TraceDescriptor

Returns trace descriptor for type that implements this trait. Not recommended to override it.

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Any for T
where T: Any,

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fn get_type_id(&self) -> TypeId

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> GCInfoTrait<T> for T
where T: TraceTrait + FinalizeTrait<T> + 'static,

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const REGISTERED_INDEX: AtomicU16

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fn index() -> GCInfoIndex

Returns index of GCInfo in GCInfoTable.
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.