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Showing content from https://docs.rs/tracing/latest/tracing/span/struct.Record.html below:

Record in tracing::span - Rust

::

span Struct RecordSource

pub struct Record<'a> { /* private fields */ }

Expand description

A set of fields recorded by a span.

Implementations§ Source § impl<'a> Record<'a> Source pub fn new(values: &'a ValueSet<'a>) -> Record<'a>

Constructs a new Record from a ValueSet.

Source pub fn record(&self, visitor: &mut dyn Visit)

Records all the fields in this Record with the provided Visitor.

Source pub fn len(&self) -> usize

Returns the number of fields that would be visited from this Record when Record::record() is called

Source pub fn contains(&self, field: &Field) -> bool

Returns true if this Record contains a value for the given Field.

Source pub fn is_empty(&self) -> bool

Returns true if this Record contains no values.

Trait Implementations§ Source § impl<'a> Debug for Record<'a> Source § fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

Read more Auto Trait Implementations§ § impl<'a> Freeze for Record<'a> § impl<'a> !RefUnwindSafe for Record<'a> § impl<'a> !Send for Record<'a> § impl<'a> !Sync for Record<'a> § impl<'a> Unpin for Record<'a> § impl<'a> !UnwindSafe for Record<'a> Blanket Implementations§ Source § impl<T> Any for T

where T: 'static + ?

,

Source § fn type_id(&self) -> TypeId

Gets the

TypeId

of

self

.

Read more Source § impl<T> Borrow<T> for T

where T: ?

,

Source § fn borrow(&self) -> &T

Immutably borrows from an owned value.

Read more Source § impl<T> BorrowMut<T> for T

where T: ?

,

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

Mutably borrows from an owned value.

Read more Source § impl<T> From<T> for T Source § fn from(t: T) -> T

Returns the argument unchanged.

Source § impl<T> Instrument for T Source § fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided

, returning an

Instrumented

wrapper.

Read more Source § fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the

, returning an

Instrumented

wrapper.

Read more Source § impl<T, U> Into<U> for T

where U:

<T>,

Source § fn into(self) -> U

Calls U::from(self).

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

Source § impl<T, U> TryFrom<U> for T

where U:

<T>,

Source § type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

Source § impl<T, U> TryInto<U> for T

where U:

<T>,

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

The type returned in the event of a conversion error.

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

Performs the conversion.

Source § impl<T> WithSubscriber for T Source § fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ

where S:

<

>,

Available on crate feature std only.

Attaches the provided

to this type, returning a

wrapper.

Read more Source § fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ Available on crate feature std only.

Attaches the current

default Subscriber

to this type, returning a

wrapper.

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