Enum SetError
pub enum SetError<T>Errors that can be returned from OnceCell::set.
Variants
-
AlreadyInitializedError(T) The cell was already initialized when
OnceCell::setwas called.-
InitializingError(T) The cell is currently being initialized.
Implementations
impl<T> SetError<T>
fn is_already_init_err(&self) -> boolWhether
SetErrorisSetError::AlreadyInitializedError.fn is_initializing_err(&self) -> boolWhether
SetErrorisSetError::InitializingError
Trait Implementations
impl<T> Display for SetError<T>
fn fmt(&self, f: &mut Formatter<'_>) -> Result
impl<T: Debug> Debug for SetError<T>
fn fmt(&self, f: &mut Formatter<'_>) -> Result
impl<T: Debug> Error for SetError<T>
impl<T: Eq> Eq for SetError<T>
impl<T: PartialEq> PartialEq for SetError<T>
fn eq(&self, other: &SetError<T>) -> bool
impl<T: PartialEq> StructuralPartialEq for SetError<T>
Auto Trait Implementations
impl<T> Freeze for SetError<T>
where
T: Freeze + Freeze,
impl<T> RefUnwindSafe for SetError<T>
where
T: RefUnwindSafe + RefUnwindSafe,
impl<T> Send for SetError<T>
where
T: Send + Send,
impl<T> Sync for SetError<T>
where
T: Sync + Sync,
impl<T> Unpin for SetError<T>
where
T: Unpin + Unpin,
impl<T> UnsafeUnpin for SetError<T>
where
T: UnsafeUnpin + UnsafeUnpin,
impl<T> UnwindSafe for SetError<T>
where
T: UnwindSafe + UnwindSafe,
Blanket Implementations
impl<T> Any for SetError<T>
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for SetError<T>
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for SetError<T>
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> From<T> for SetError<T>
fn from(t: T) -> TReturns the argument unchanged.
impl<T> ToString for SetError<T>
where
T: Display + ?Sized,
fn to_string(&self) -> String
impl<T, U> Into<U> for SetError<T>
where
U: From<T>,
fn into(self) -> UCalls
U::from(self).That is, this conversion is whatever the implementation of
[From]<T> for Uchooses to do.
impl<T, U> TryFrom<U> for SetError<T>
where
U: Into<T>,
type Error = never;fn try_from(value: U) -> Result<T, never>
impl<T, U> TryInto<U> for SetError<T>
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>