pub struct EventArgRecorder<'p> {
    profiler: &'p SelfProfiler,
    args: SmallVec<[StringId; 2]>,
}
Expand description

A helper for recording costly arguments to self-profiling events. Used with SelfProfilerRef::generic_activity_with_arg_recorder.

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§profiler: &'p SelfProfiler

The SelfProfiler used to intern the event arguments that users will ask to record.

§args: SmallVec<[StringId; 2]>

The interned event arguments to be recorded in the generic activity event.

The most common case, when actually recording event arguments, is to have one argument. Then followed by recording two, in a couple places.

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impl EventArgRecorder<'_>

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pub fn record_arg<A>(&mut self, event_arg: A)
where A: Borrow<str> + Into<String>,

Records a single argument within the current generic activity being profiled.

Note: when self-profiling with costly event arguments, at least one argument needs to be recorded. A panic will be triggered if that doesn’t happen.

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impl<'p> Freeze for EventArgRecorder<'p>

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impl<'p> !RefUnwindSafe for EventArgRecorder<'p>

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impl<'p> Send for EventArgRecorder<'p>

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impl<'p> Sync for EventArgRecorder<'p>

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impl<'p> Unpin for EventArgRecorder<'p>

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impl<'p> !UnwindSafe for EventArgRecorder<'p>

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impl<T> Aligned for T

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const ALIGN: Alignment = const ALIGN: Alignment = Alignment::of::<Self>();

Alignment of Self.
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. 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
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 32 bytes