pub struct WeakFileDescriptionRef {
weak_ref: Weak<FileDescWithId<dyn FileDescription>>,
}
Expand description
Holds a weak reference to the actual file description.
Fields§
§weak_ref: Weak<FileDescWithId<dyn FileDescription>>
Implementations§
source§impl WeakFileDescriptionRef
impl WeakFileDescriptionRef
pub fn upgrade(&self) -> Option<FileDescriptionRef>
Trait Implementations§
source§impl Clone for WeakFileDescriptionRef
impl Clone for WeakFileDescriptionRef
source§fn clone(&self) -> WeakFileDescriptionRef
fn clone(&self) -> WeakFileDescriptionRef
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for WeakFileDescriptionRef
impl Debug for WeakFileDescriptionRef
source§impl Default for WeakFileDescriptionRef
impl Default for WeakFileDescriptionRef
source§fn default() -> WeakFileDescriptionRef
fn default() -> WeakFileDescriptionRef
Returns the “default value” for a type. Read more
source§impl VisitProvenance for WeakFileDescriptionRef
impl VisitProvenance for WeakFileDescriptionRef
fn visit_provenance(&self, _visit: &mut VisitWith<'_>)
Auto Trait Implementations§
impl Freeze for WeakFileDescriptionRef
impl !RefUnwindSafe for WeakFileDescriptionRef
impl !Send for WeakFileDescriptionRef
impl !Sync for WeakFileDescriptionRef
impl Unpin for WeakFileDescriptionRef
impl !UnwindSafe for WeakFileDescriptionRef
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 8 bytes