pub enum FillValue {
Bool(bool),
Int(i64),
UInt(u64),
Float(f64),
String(String),
TimestampNs(i64),
}Expand description
A scalar fill value for an array.
Represents the value used for unwritten or missing elements. Supports numeric types and strings; complex types (Binary, List, FixedSizeList) are not representable here.
Variants§
Bool(bool)
Boolean fill value.
Int(i64)
Signed integer fill value (for the signed integer dtypes).
UInt(u64)
Unsigned integer fill value (for the unsigned integer dtypes).
Float(f64)
Floating-point fill value (for Float32/Float64).
String(String)
String fill value.
TimestampNs(i64)
Fill value for DType::TimestampNs arrays — interpreted as i64
nanoseconds since the Unix epoch.
Trait Implementations§
Source§impl Archive for FillValue
impl Archive for FillValue
Source§type Archived = ArchivedFillValue
type Archived = ArchivedFillValue
The archived representation of this type. Read more
Source§type Resolver = FillValueResolver
type Resolver = FillValueResolver
The resolver for this type. It must contain all the additional
information from serializing needed to make the archived type from
the normal type.
Source§fn resolve(
&self,
resolver: <Self as Archive>::Resolver,
out: Place<<Self as Archive>::Archived>,
)
fn resolve( &self, resolver: <Self as Archive>::Resolver, out: Place<<Self as Archive>::Archived>, )
Creates the archived version of this value at the given position and
writes it to the given output. Read more
Source§const COPY_OPTIMIZATION: CopyOptimization<Self> = _
const COPY_OPTIMIZATION: CopyOptimization<Self> = _
An optimization flag that allows the bytes of this type to be copied
directly to a writer instead of calling
serialize. Read moreSource§impl<__D: Fallible + ?Sized> Deserialize<FillValue, __D> for Archived<FillValue>where
bool: Archive,
<bool as Archive>::Archived: Deserialize<bool, __D>,
i64: Archive,
<i64 as Archive>::Archived: Deserialize<i64, __D>,
u64: Archive,
<u64 as Archive>::Archived: Deserialize<u64, __D>,
f64: Archive,
<f64 as Archive>::Archived: Deserialize<f64, __D>,
String: Archive,
<String as Archive>::Archived: Deserialize<String, __D>,
impl<__D: Fallible + ?Sized> Deserialize<FillValue, __D> for Archived<FillValue>where
bool: Archive,
<bool as Archive>::Archived: Deserialize<bool, __D>,
i64: Archive,
<i64 as Archive>::Archived: Deserialize<i64, __D>,
u64: Archive,
<u64 as Archive>::Archived: Deserialize<u64, __D>,
f64: Archive,
<f64 as Archive>::Archived: Deserialize<f64, __D>,
String: Archive,
<String as Archive>::Archived: Deserialize<String, __D>,
Auto Trait Implementations§
impl Freeze for FillValue
impl RefUnwindSafe for FillValue
impl Send for FillValue
impl Sync for FillValue
impl Unpin for FillValue
impl UnsafeUnpin for FillValue
impl UnwindSafe for FillValue
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
Source§impl<T> ArchiveUnsized for Twhere
T: Archive,
impl<T> ArchiveUnsized for Twhere
T: Archive,
Source§type Archived = <T as Archive>::Archived
type Archived = <T as Archive>::Archived
The archived counterpart of this type. Unlike
Archive, it may be
unsized. Read moreSource§fn archived_metadata(
&self,
) -> <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata
fn archived_metadata( &self, ) -> <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata
Creates the archived version of the metadata for this value.
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.