Expand description
Sealed traits and implementations to handle all physical types used in this crate.
Most physical types used in this crate are native Rust types, such as i32.
The trait NativeType describes the interfaces required by this crate to be conformant
with Arrow.
Every implementation of NativeType has an associated variant in PrimitiveType,
available via NativeType::PRIMITIVE.
Combined, these allow structs generic over NativeType to be trait objects downcastable
to concrete implementations based on the matched NativeType::PRIMITIVE variant.
Another important trait in this module is Offset, the subset of NativeType that can
be used in Arrow offsets (i32 and i64).
Another important trait in this module is BitChunk, describing types that can be used to
represent chunks of bits (e.g. 8 bits via u8, 16 via u16), and BitChunkIter,
that can be used to iterate over bitmaps in BitChunks according to
Arrow’s definition of bitmaps.
Finally, this module contains traits used to compile code based on NativeType optimized
for SIMD, at simd.
Modules
Structs
An [Iterator<Item=usize>] over a BitChunk returning the index of each bit set in the chunk
See https://lemire.me/blog/2018/03/08/iterating-over-set-bits-quickly-simd-edition/ for details
The in-memory representation of the DayMillisecond variant of arrow’s “Interval” logical type.
Type representation of the Float16 physical type
The in-memory representation of the MonthDayNano variant of the “Interval” logical type.
Enums
The set of all implementations of the sealed trait NativeType.
Traits
A chunk of bits. This is used to create masks of a given length
whose width is 1 bit. In portable_simd notation, this corresponds to m1xY.
Sealed trait describing the subset of NativeType (i32, i64, u32 and u64)
that can be used to index a slot of an array.
Sealed trait implemented by all physical types that can be allocated, serialized and deserialized by this crate. All O(N) allocations in this crate are done for this trait alone.