🛈 Note: This is pre-release documentation for the upcoming tracing 0.2.0 ecosystem.

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

tracing_subscriber::fmt::format

Struct Full

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pub struct Full;
Available on crate features fmt and std only.
Expand description

Marker for Format that indicates that the default log format should be used.

This formatter shows the span context before printing event data. Spans are displayed including their names and fields.

§Example Output

:; cargo run --example fmt
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `target/debug/examples/fmt`
2022-02-15T18:40:14.289898Z  INFO fmt: preparing to shave yaks number_of_yaks=3
2022-02-15T18:40:14.289974Z  INFO shaving_yaks{yaks=3}: fmt::yak_shave: shaving yaks
2022-02-15T18:40:14.290011Z TRACE shaving_yaks{yaks=3}:shave{yak=1}: fmt::yak_shave: hello! I'm gonna shave a yak excitement="yay!"
2022-02-15T18:40:14.290038Z TRACE shaving_yaks{yaks=3}:shave{yak=1}: fmt::yak_shave: yak shaved successfully
2022-02-15T18:40:14.290070Z DEBUG shaving_yaks{yaks=3}: yak_events: yak=1 shaved=true
2022-02-15T18:40:14.290089Z TRACE shaving_yaks{yaks=3}: fmt::yak_shave: yaks_shaved=1
2022-02-15T18:40:14.290114Z TRACE shaving_yaks{yaks=3}:shave{yak=2}: fmt::yak_shave: hello! I'm gonna shave a yak excitement="yay!"
2022-02-15T18:40:14.290134Z TRACE shaving_yaks{yaks=3}:shave{yak=2}: fmt::yak_shave: yak shaved successfully
2022-02-15T18:40:14.290157Z DEBUG shaving_yaks{yaks=3}: yak_events: yak=2 shaved=true
2022-02-15T18:40:14.290174Z TRACE shaving_yaks{yaks=3}: fmt::yak_shave: yaks_shaved=2
2022-02-15T18:40:14.290198Z TRACE shaving_yaks{yaks=3}:shave{yak=3}: fmt::yak_shave: hello! I'm gonna shave a yak excitement="yay!"
2022-02-15T18:40:14.290222Z  WARN shaving_yaks{yaks=3}:shave{yak=3}: fmt::yak_shave: could not locate yak
2022-02-15T18:40:14.290247Z DEBUG shaving_yaks{yaks=3}: yak_events: yak=3 shaved=false
2022-02-15T18:40:14.290268Z ERROR shaving_yaks{yaks=3}: fmt::yak_shave: failed to shave yak yak=3 error=missing yak error.sources=[out of space, out of cash]
2022-02-15T18:40:14.290287Z TRACE shaving_yaks{yaks=3}: fmt::yak_shave: yaks_shaved=2
2022-02-15T18:40:14.290309Z  INFO fmt: yak shaving completed. all_yaks_shaved=false

Trait Implementations§

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impl Clone for Full

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fn clone(&self) -> Full

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 Full

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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 Full

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fn default() -> Full

Returns the “default value” for a type. Read more
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impl PartialEq for Full

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fn eq(&self, other: &Full) -> 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 Copy for Full

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impl Eq for Full

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impl StructuralPartialEq for Full

Auto Trait Implementations§

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impl Freeze for Full

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impl RefUnwindSafe for Full

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impl Send for Full

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impl Sync for Full

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impl Unpin for Full

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impl UnwindSafe for Full

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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
Performs copy-assignment from self to dst. 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> 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