Type Alias NoData

pub type NoData = ();

Represents the absence of some data.

Trait Implementations

impl DataType for NoData

type Value = ()

The DataValue type that pairs with this DataType.

fn data_values_are_copy() -> bool

Returns whether all values represented by this type are Copy.

fn data_value_is_copy(&self) -> bool

Returns whether the specific value for this type is Copy.

fn data_value_default(&self) -> Option<Self::Value>

Returns the default value for this type, or None if not available.

fn data_value_align(&self) -> usize

Returns the alignment of the value represented by this type.

fn data_value_size(&self) -> usize

Returns the size of the value represented by this type.

impl DataTypeCopy for NoData

fn data_value_copy_default(&self) -> Option<Self::Value>

Returns the default value for this Copy type, or None if not available.

impl DataValue for NoData

type Type = ()

The DataType type that pairs with this DataValue.

fn data_values_are_copy() -> bool

Returns whether all values are Copy.

fn data_type(&self) -> Self::Type

Returns the data type of this value.

fn data_value_is_copy(&self) -> bool

Returns whether the specific value is Copy.

impl DataValueCopy for NoData

fn data_type_copy(&self) -> Self::Type

Returns the data type associated with this Copy value.

impl<W: IoWrite> Encodable<W> for NoData

fn encode(&self, _writer: &mut W) -> IoResult<usize>

Encodes self into the given writer, returning the bytes written.

impl DataRaw for NoData

Available on crate feature unsafe_layout only.