| 1 | //! The module contains a [Records] abstraction of a [`Grid`] trait and its implementers. |
| 2 | //! |
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| 3 | //! [`Grid`]: crate::grid::iterable::Grid |
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| 4 | |
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| 5 | mod exact_records; |
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| 6 | mod into_records; |
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| 7 | mod iter_records; |
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| 8 | mod peekable_records; |
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| 9 | |
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| 10 | pub use exact_records::ExactRecords; |
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| 11 | pub use into_records::IntoRecords; |
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| 12 | pub use iter_records::IterRecords; |
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| 13 | pub use peekable_records::PeekableRecords; |
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| 14 | |
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| 15 | #[cfg (feature = "std" )] |
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| 16 | pub mod vec_records; |
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| 17 | |
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| 18 | /// Records represents table data. |
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| 19 | pub trait Records { |
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| 20 | /// Iterator which goes over rows. |
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| 21 | type Iter: IntoRecords; |
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| 22 | |
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| 23 | /// Returns a iterator over rows. |
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| 24 | fn iter_rows(self) -> <Self::Iter as IntoRecords>::IterRows; |
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| 25 | |
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| 26 | /// Returns count of columns in the records. |
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| 27 | fn count_columns(&self) -> usize; |
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| 28 | |
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| 29 | /// Hint amount of rows in the records. |
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| 30 | fn hint_count_rows(&self) -> Option<usize>; |
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| 31 | } |
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| 32 | |
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| 33 | // todo: Provide a convinient way to iter over columns |
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| 34 | // |
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| 35 | // probably fn iter_columns(self) -> Option<Self::Iter2> |
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| 36 | // |
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| 37 | // it'll likely speed up some algos |
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| 38 | |
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| 39 | // note: |
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| 40 | // Maybe simplify IntoRecords; we know count columns any way.... |
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| 41 | // and sometimes buffering and stuff hard to implement with this laye of abstraction |
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| 42 | |
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