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Scalar

re_components

Struct Scalar 

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pub struct Scalar(pub f64);
Expand description

A double-precision scalar.

§Examples

assert_eq!(Scalar::data_type(), DataType::Float64);

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§0: f64

Trait Implementations§

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impl ArrowDeserialize for Scalar

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type ArrayType = <f64 as ArrowDeserialize>::ArrayType

The arrow2::Array type corresponding to this field
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fn arrow_deserialize<'a>( v: <&Self::ArrayType as IntoIterator>::Item, ) -> Option<Self>

Deserialize this field from arrow
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impl ArrowField for Scalar

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type Type = Scalar

This should be Self except when implementing large offset and fixed placeholder types. For the later, it should refer to the actual type. For example when the placeholder type is LargeString, this should be String.
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fn data_type() -> DataType

The DataType
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impl ArrowSerialize for Scalar

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type MutableArrayType = <f64 as ArrowSerialize>::MutableArrayType

The arrow2::array::MutableArray that holds this value
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fn new_array() -> Self::MutableArrayType

Create a new mutable array
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fn arrow_serialize(v: &Self, array: &mut Self::MutableArrayType) -> Result<()>

Serialize this field to arrow
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impl Clone for Scalar

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fn clone(&self) -> Scalar

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 Debug for Scalar

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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 Scalar> for Cow<'a, Scalar>

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fn from(value: &'a Scalar) -> Self

Converts to this type from the input type.
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impl<'a> From<Scalar> for Cow<'a, Scalar>

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fn from(value: Scalar) -> Self

Converts to this type from the input type.
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impl From<Scalar> for f64

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fn from(value: Scalar) -> Self

Converts to this type from the input type.
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impl From<f64> for Scalar

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fn from(value: f64) -> Self

Converts to this type from the input type.
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impl LegacyComponent for Scalar

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fn legacy_name() -> ComponentName

The name of the component.
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fn field() -> Field

Create a Field for this LegacyComponent.
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impl Loggable for Scalar

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type Name = ComponentName

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type Item<'a> = <&'a <Scalar as ArrowDeserialize>::ArrayType as IntoIterator>::Item

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type Iter<'a> = <&'a <Scalar as ArrowDeserialize>::ArrayType as IntoIterator>::IntoIter

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fn name() -> Self::Name

The fully-qualified name of this loggable, e.g. rerun.datatypes.Vec2D.
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fn to_arrow_datatype() -> DataType

The underlying arrow2::datatypes::DataType.
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fn try_to_arrow_opt<'a>( data: impl IntoIterator<Item = Option<impl Into<Cow<'a, Self>>>>, _extension_wrapper: Option<&str>, ) -> SerializationResult<Box<dyn Array>>
where Self: Clone + 'a,

Given an iterator of options of owned or reference values to the current Loggable, serializes them into an Arrow array. The Arrow array’s datatype will match Loggable::to_arrow_datatype. Read more
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fn try_iter_from_arrow( data: &dyn Array, ) -> DeserializationResult<Self::Iter<'_>>
where Self: Sized,

Given an Arrow array, deserializes it into a iterator of Loggable::Items. Read more
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fn convert_item_to_self(item: Self::Item<'_>) -> Option<Self>

Convert a Loggable::Item into an optional Loggable Read more
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fn to_arrow<'a>( data: impl IntoIterator<Item = impl Into<Cow<'a, Self>>>, extension_wrapper: Option<&str>, ) -> Box<dyn Array>
where Self: Clone + 'a,

Given an iterator of owned or reference values to the current Loggable, serializes them into an Arrow array. The Arrow array’s datatype will match Loggable::to_arrow_datatype. Read more
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fn try_to_arrow<'a>( data: impl IntoIterator<Item = impl Into<Cow<'a, Self>>>, extension_wrapper: Option<&str>, ) -> Result<Box<dyn Array>, SerializationError>
where Self: Clone + 'a,

Given an iterator of owned or reference values to the current Loggable, serializes them into an Arrow array. The Arrow array’s datatype will match Loggable::to_arrow_datatype. Read more
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fn to_arrow_opt<'a>( data: impl IntoIterator<Item = Option<impl Into<Cow<'a, Self>>>>, extension_wrapper: Option<&str>, ) -> Box<dyn Array>
where Self: Clone + 'a,

Given an iterator of options of owned or reference values to the current Loggable, serializes them into an Arrow array. The Arrow array’s datatype will match Loggable::to_arrow_datatype. Read more
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fn from_arrow(data: &(dyn Array + 'static)) -> Vec<Self>

Given an Arrow array, deserializes it into a collection of Loggables. Read more
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fn try_from_arrow( data: &(dyn Array + 'static), ) -> Result<Vec<Self>, DeserializationError>

Given an Arrow array, deserializes it into a collection of Loggables. Read more
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fn from_arrow_opt(data: &(dyn Array + 'static)) -> Vec<Option<Self>>

Given an Arrow array, deserializes it into a collection of optional Loggables. Read more
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fn try_from_arrow_opt( data: &(dyn Array + 'static), ) -> Result<Vec<Option<Self>>, DeserializationError>

Given an Arrow array, deserializes it into a collection of optional Loggables. Read more
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impl Component for Scalar

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impl Copy for Scalar

Auto Trait Implementations§

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impl Freeze for Scalar

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impl RefUnwindSafe for Scalar

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impl Send for Scalar

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impl Sync for Scalar

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impl Unpin for Scalar

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impl UnwindSafe for Scalar

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> Az for T

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fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.
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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<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

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fn cast_from(src: Src) -> Dst

Casts the value.
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impl<T> CheckedAs for T

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fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.
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impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

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fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.
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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> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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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<Src, Dst> LosslessTryInto<Dst> for Src
where Dst: LosslessTryFrom<Src>,

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fn lossless_try_into(self) -> Option<Dst>

Performs the conversion.
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impl<Src, Dst> LossyInto<Dst> for Src
where Dst: LossyFrom<Src>,

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fn lossy_into(self) -> Dst

Performs the conversion.
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impl<T> OverflowingAs for T

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fn overflowing_as<Dst>(self) -> (Dst, bool)
where T: OverflowingCast<Dst>,

Casts the value.
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impl<Src, Dst> OverflowingCastFrom<Src> for Dst
where Src: OverflowingCast<Dst>,

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fn overflowing_cast_from(src: Src) -> (Dst, bool)

Casts the value.
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> SaturatingAs for T

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fn saturating_as<Dst>(self) -> Dst
where T: SaturatingCast<Dst>,

Casts the value.
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impl<Src, Dst> SaturatingCastFrom<Src> for Dst
where Src: SaturatingCast<Dst>,

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fn saturating_cast_from(src: Src) -> Dst

Casts the value.
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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> UnwrappedAs for T

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fn unwrapped_as<Dst>(self) -> Dst
where T: UnwrappedCast<Dst>,

Casts the value.
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impl<Src, Dst> UnwrappedCastFrom<Src> for Dst
where Src: UnwrappedCast<Dst>,

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fn unwrapped_cast_from(src: Src) -> Dst

Casts the value.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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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<T> WrappingAs for T

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fn wrapping_as<Dst>(self) -> Dst
where T: WrappingCast<Dst>,

Casts the value.
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impl<Src, Dst> WrappingCastFrom<Src> for Dst
where Src: WrappingCast<Dst>,

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fn wrapping_cast_from(src: Src) -> Dst

Casts the value.