Struct GCInfo

#[repr(C)]pub struct GCInfo {
    pub finalize: Option<extern "C" fn(*mut u8)>,
    pub trace: extern "C" fn(*mut Visitor, *const u8),
    pub vtable: usize,
}

Expand description

GCInfo contains metadata for objects that implement GCInfoTrait.

Fields§

§finalize: Option<extern "C" fn(*mut u8)>

Finalization callback

§trace: extern "C" fn(*mut Visitor, *const u8)

Tracing callback

§vtable: usize

Additional vtable pointer. This is not used in any way by Comet but might be used by programmers to store vtable by runtimes without occupying additional 8/4 bytes of space in allocation itself.

Auto Trait Implementations§

impl Freeze for GCInfo

impl RefUnwindSafe for GCInfo

impl Send for GCInfo

impl Sync for GCInfo

impl Unpin for GCInfo

impl UnwindSafe for GCInfo

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Any for T
where T: Any,

fn get_type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.