Add dtype helper macro#8140
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| ); | ||
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| // SAFETY: `precision > 0` was asserted above. | ||
| let precision = unsafe { NonZero::new_unchecked(precision) }; |
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The safe one returns an option
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so this that instead of an assert above.
Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
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Merging this PR will improve performance by 19.85%
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| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ⚡ | Simulation | chunked_varbinview_opt_canonical_into[(1000, 10)] |
225.4 µs | 188.1 µs | +19.85% |
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Comparing ct/dtype-macro (6329248) with develop (1cd5c27)
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| let inner = StructFields::from_iter([("mean", dtype!(f64?)), ("count", dtype!(u32))]); | ||
| let outer = StructFields::from_iter([ | ||
| ("id", dtype!(i64)), | ||
| ("label", dtype!(utf8?)), | ||
| ("values", dtype!(list(f32)?)), | ||
| ("codes", dtype!(fixed_size_list(u8?)[4])), | ||
| ("metrics", dtype!(struct(inner)?)), | ||
| ]); | ||
| let dt = dtype!(struct(outer.clone())?); | ||
| assert_eq!(dt, DType::Struct(outer, Nullable)); |
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Summary
I often have found myself getting annoyed at the amount of boilerplate needed to define different dtypes.
This is a simple macro that autogenerates dtypes and nested dtypes. I specifically exclude struct fields from this macro since people might have different opinions on what the syntax should be.
Also adds a
constversion ofDecimalDTypeconstruction since I would like to have the dtype macro fail if we try to construct something bad.Testing
Basic unit tests, including some deeper nested dtypes.