๐Ÿ›ˆ Note: This is pre-release documentation for the upcoming tracing 0.2.0 ecosystem.

For the release documentation, please see docs.rs, instead.

Struct NewSpan

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pub struct NewSpan { /* private fields */ }
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A mock new span.

Note: This struct contains expectations that can only be asserted on when expecting a new span via MockCollector::new_span. They cannot be validated on MockCollector::enter, MockCollector::exit, or any other method on MockCollector that takes an ExpectedSpan.

For more details on how to use this struct, see the documentation on the collector module.

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impl NewSpan

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pub fn with_ancestry(self, ancestry: ExpectedAncestry) -> NewSpan

Configures this NewSpan to expect the specified ExpectedAncestry. A spanโ€™s ancestry indicates whether it has a parent or is a root span and whether the parent is explitly or contextually assigned.

For more information and examples, see the documentation on ExpectedSpan::with_ancestry.

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pub fn with_fields<I>(self, fields: I) -> NewSpan
where I: Into<ExpectedFields>,

Adds fields to expect when matching a span.

For more information and examples, see the documentation on ExpectedSpan::with_fields.

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impl Debug for NewSpan

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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 Default for NewSpan

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fn default() -> NewSpan

Returns the โ€œdefault valueโ€ for a type. Read more
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impl Display for NewSpan

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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<S> From<S> for NewSpan
where S: Into<ExpectedSpan>,

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fn from(span: S) -> Self

Converts to this type from the input type.
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impl PartialEq for NewSpan

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for NewSpan

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impl StructuralPartialEq for NewSpan

Auto Trait Implementationsยง

Blanket Implementationsยง

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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<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. 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> WithCollector for T

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fn with_collector<C>(self, collector: C) -> WithDispatch<Self>
where C: Into<Dispatch>,

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

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