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LogValue

Enum LogValue 

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pub enum LogValue<'a> {
    Str(Cow<'a, str>),
    Int(i64),
    Uint(u64),
    Float(f64),
    Bool(bool),
}
Expand description

A structured value on a log record (M845): the scalar kinds a sink can render or ship (JSON, a tracing field) without knowing the log site. Str borrows at the site, so a record a sink drops allocates nothing; the owned form comes from into_owned.

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Str(Cow<'a, str>)

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Int(i64)

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Uint(u64)

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Float(f64)

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Bool(bool)

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impl LogValue<'_>

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pub fn into_owned(self) -> LogValue<'static>

Detach from the log site so the value can outlive it (what RingSink stores).

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impl<'a> Clone for LogValue<'a>

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fn clone(&self) -> LogValue<'a>

Returns a duplicate 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<'a> Debug for LogValue<'a>

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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 Display for LogValue<'_>

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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<'a> From<&'a str> for LogValue<'a>

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fn from(v: &'a str) -> Self

Converts to this type from the input type.
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impl From<String> for LogValue<'static>

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fn from(v: String) -> Self

Converts to this type from the input type.
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impl From<bool> for LogValue<'_>

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fn from(v: bool) -> Self

Converts to this type from the input type.
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impl From<f32> for LogValue<'_>

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fn from(v: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for LogValue<'_>

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fn from(v: f64) -> Self

Converts to this type from the input type.
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impl From<i8> for LogValue<'_>

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fn from(v: i8) -> Self

Converts to this type from the input type.
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impl From<i16> for LogValue<'_>

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fn from(v: i16) -> Self

Converts to this type from the input type.
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impl From<i32> for LogValue<'_>

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fn from(v: i32) -> Self

Converts to this type from the input type.
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impl From<i64> for LogValue<'_>

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fn from(v: i64) -> Self

Converts to this type from the input type.
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impl From<u8> for LogValue<'_>

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fn from(v: u8) -> Self

Converts to this type from the input type.
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impl From<u16> for LogValue<'_>

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fn from(v: u16) -> Self

Converts to this type from the input type.
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impl From<u32> for LogValue<'_>

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fn from(v: u32) -> Self

Converts to this type from the input type.
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impl From<u64> for LogValue<'_>

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fn from(v: u64) -> Self

Converts to this type from the input type.
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impl From<usize> for LogValue<'_>

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fn from(v: usize) -> Self

Converts to this type from the input type.
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impl<'a> PartialEq for LogValue<'a>

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fn eq(&self, other: &LogValue<'a>) -> bool

Equality operator ==. Read more
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fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<'a> StructuralPartialEq for LogValue<'a>

Auto Trait Implementations§

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impl<'a> Freeze for LogValue<'a>

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impl<'a> RefUnwindSafe for LogValue<'a>

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impl<'a> Send for LogValue<'a>

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impl<'a> Sync for LogValue<'a>

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impl<'a> Unpin for LogValue<'a>

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impl<'a> UnsafeUnpin for LogValue<'a>

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impl<'a> UnwindSafe for LogValue<'a>

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> ElementBound for T
where T: Send,

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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, 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> 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 = !

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.