Struct Assertion

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pub struct Assertion(/* private fields */);
Expand description

An assertion.

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impl Assertion

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pub fn assert(&self) -> &Self

Evaluates the assertion.

§Panics

When the assertion is false.

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pub fn repeat(&self) -> Self

Create a new assertion with the same condition.

use tracing_subscriber::layer::SubscriberExt;
let asserter = tracing_assertions::Layer::default();
let registry = tracing_subscriber::Registry::default();
let subscriber = registry.with(asserter.clone());
let guard = tracing::subscriber::set_default(subscriber);
let one = asserter.matches("one");
tracing::info!("one");
one.assert();
let one2 = one.repeat();
(!&one2).assert();
tracing::info!("one");
one2.assert();
§Panics

When the inner mutex is poisoned.

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pub fn reset(&self)

Resets the assertion.

use tracing_subscriber::layer::SubscriberExt;
let asserter = tracing_assertions::Layer::default();
let registry = tracing_subscriber::Registry::default();
let subscriber = registry.with(asserter.clone());
let guard = tracing::subscriber::set_default(subscriber);
let one = asserter.matches("one");
tracing::info!("one");
one.assert().reset();
(!&one).assert();
tracing::info!("one");
one.assert();
§Panics

When the inner mutex is poisoned.

Trait Implementations§

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impl BitAnd<&Assertion> for Assertion

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type Output = Assertion

The resulting type after applying the & operator.
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fn bitand(self, rhs: &Self) -> Self::Output

Performs the & operation. Read more
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impl BitAnd<Assertion> for &Assertion

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type Output = Assertion

The resulting type after applying the & operator.
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fn bitand(self, rhs: Assertion) -> Self::Output

Performs the & operation. Read more
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impl BitAnd for &Assertion

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type Output = Assertion

The resulting type after applying the & operator.
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fn bitand(self, rhs: Self) -> Self::Output

Performs the & operation. Read more
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impl BitAnd for Assertion

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type Output = Assertion

The resulting type after applying the & operator.
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fn bitand(self, rhs: Self) -> Self::Output

Performs the & operation. Read more
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impl BitOr<&Assertion> for Assertion

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type Output = Assertion

The resulting type after applying the | operator.
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fn bitor(self, rhs: &Assertion) -> Self::Output

Performs the | operation. Read more
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impl BitOr<Assertion> for &Assertion

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type Output = Assertion

The resulting type after applying the | operator.
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fn bitor(self, rhs: Assertion) -> Self::Output

Performs the | operation. Read more
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impl BitOr for &Assertion

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type Output = Assertion

The resulting type after applying the | operator.
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fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation. Read more
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impl BitOr for Assertion

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type Output = Assertion

The resulting type after applying the | operator.
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fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation. Read more
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impl Clone for Assertion

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fn clone(&self) -> Assertion

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Assertion

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

Formats the value using the given formatter. Read more
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impl From<&Assertion> for bool

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fn from(value: &Assertion) -> Self

Converts to this type from the input type.
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impl From<Assertion> for bool

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fn from(value: Assertion) -> Self

Converts to this type from the input type.
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impl Not for &Assertion

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type Output = Assertion

The resulting type after applying the ! operator.
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fn not(self) -> Self::Output

Performs the unary ! operation. Read more
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impl Not for Assertion

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type Output = Assertion

The resulting type after applying the ! operator.
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fn not(self) -> Self::Output

Performs the unary ! operation. Read more

Auto Trait Implementations§

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> CloneToUninit for T
where T: Clone,

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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