This repository has been archived by the owner on Feb 18, 2024. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 220
/
mod.rs
87 lines (82 loc) · 2.73 KB
/
mod.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
//! 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 [`BitChunk`]s according to
//! Arrow's definition of bitmaps.
//!
//! Finally, this module contains traits used to compile code based on [`NativeType`] optimized
//! for SIMD, at [`mod@simd`].
mod bit_chunk;
pub use bit_chunk::{BitChunk, BitChunkIter, BitChunkOnes};
mod index;
pub mod simd;
pub use index::*;
mod native;
pub use native::*;
mod offset;
pub use offset::*;
#[cfg(feature = "serde_types")]
use serde_derive::{Deserialize, Serialize};
/// The set of all implementations of the sealed trait [`NativeType`].
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde_types", derive(Serialize, Deserialize))]
pub enum PrimitiveType {
/// A signed 8-bit integer.
Int8,
/// A signed 16-bit integer.
Int16,
/// A signed 32-bit integer.
Int32,
/// A signed 64-bit integer.
Int64,
/// A signed 128-bit integer.
Int128,
/// An unsigned 8-bit integer.
UInt8,
/// An unsigned 16-bit integer.
UInt16,
/// An unsigned 32-bit integer.
UInt32,
/// An unsigned 64-bit integer.
UInt64,
/// A 16-bit floating point number.
Float16,
/// A 32-bit floating point number.
Float32,
/// A 64-bit floating point number.
Float64,
/// Two i32 representing days and ms
DaysMs,
/// months_days_ns(i32, i32, i64)
MonthDayNano,
}
mod private {
pub trait Sealed {}
impl Sealed for u8 {}
impl Sealed for u16 {}
impl Sealed for u32 {}
impl Sealed for u64 {}
impl Sealed for i8 {}
impl Sealed for i16 {}
impl Sealed for i32 {}
impl Sealed for i64 {}
impl Sealed for i128 {}
impl Sealed for super::f16 {}
impl Sealed for f32 {}
impl Sealed for f64 {}
impl Sealed for super::days_ms {}
impl Sealed for super::months_days_ns {}
}