pub struct Output(/* private fields */);
Available on crate feature client only.
Expand description

Type-erased operation output.

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impl Output

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pub fn erase<T: Send + Sync + Debug + 'static>(input: T) -> Self

Creates a new Output with the provided concrete input value.

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pub fn downcast_ref<T: Send + Sync + Debug + 'static>(&self) -> Option<&T>

Downcasts to the concrete input value.

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pub fn downcast_mut<T: Send + Sync + Debug + 'static>( &mut self ) -> Option<&mut T>

Downcasts to the concrete input value.

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pub fn downcast<T: Send + Sync + Debug + 'static>(self) -> Result<T, Self>

Downcasts to the concrete input value.

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pub fn doesnt_matter() -> Self

Available on crate feature test-util only.

Returns a Output with a fake/test value with the expectation that it won’t be downcast in the test.

Trait Implementations§

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impl Debug for Output

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Output

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impl !RefUnwindSafe for Output

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impl Send for Output

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impl Sync for Output

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impl Unpin for Output

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impl !UnwindSafe for Output

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more