Struct None
pub struct None(/* private field */);Error returned if the inner Service has not been set.
Trait Implementations
impl Debug for None
fn fmt(&self, f: &mut Formatter<'_>) -> Result
impl Display for None
fn fmt(&self, fmt: &mut Formatter<'_>) -> Result
impl Error for None
Auto Trait Implementations
impl Freeze for None
impl RefUnwindSafe for None
impl Send for None
impl Sync for None
impl Unpin for None
impl UnsafeUnpin for None
impl UnwindSafe for None
Blanket Implementations
impl<T> Any for None
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for None
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for None
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> From<T> for None
fn from(t: T) -> TReturns the argument unchanged.
impl<T> Instrument for None
impl<T> ToString for None
where
T: Display + ?Sized,
fn to_string(&self) -> String
impl<T> WithSubscriber for None
impl<T, U> Into<U> for None
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 None
where
U: Into<T>,
type Error = never;fn try_from(value: U) -> Result<T, never>
impl<T, U> TryInto<U> for None
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>