Struct NoSource

Source

pub struct NoSource;

Expand description

The stand-in “source” a leaf selector (one with no source field) builds from. Option::context uses it as the source when there is no error value to attach. You normally reach a leaf error through .build() / .fail() / Option::context, so you rarely name this directly.

NoSource

Struct NoSource Copy item path

Trait Implementations§

impl Clone for NoSource

fn clone(&self) -> NoSource

fn clone_from(&mut self, source: &Self)

impl Copy for NoSource

impl Debug for NoSource

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Eq for NoSource

impl PartialEq for NoSource

fn eq(&self, other: &NoSource) -> bool

fn ne(&self, other: &Rhs) -> bool

impl StructuralPartialEq for NoSource

Auto Trait Implementations§

impl Freeze for NoSource

impl RefUnwindSafe for NoSource

impl Send for NoSource

impl Sync for NoSource

impl Unpin for NoSource

impl UnsafeUnpin for NoSource

impl UnwindSafe for NoSource

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> DropFlavorWrapper<T> for T

type Flavor = MayDrop

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, W> HasTypeWitness<W> for Twhere W: MakeTypeWitness<Arg = T>, T: ?Sized,

const WITNESS: W = W::MAKE

impl<T> Identity for Twhere T: ?Sized,

const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

type Type = T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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

type Error = Infallible

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

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

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

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

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

Struct NoSource

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

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

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

impl<T> CloneToUninit for T
where T: Clone,

impl<T, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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

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

impl<T> ToOwned for T
where T: Clone,

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

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

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,