papergrid/records/
iter_records.rs

1use super::{IntoRecords, Records};
2
3/// A [Records] implementation for any [IntoIterator].
4#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
5pub struct IterRecords<I> {
6    iter: I,
7    count_columns: usize,
8    count_rows: Option<usize>,
9}
10
11impl<I> IterRecords<I> {
12    /// Returns a new [IterRecords] object.
13    pub const fn new(iter: I, count_columns: usize, count_rows: Option<usize>) -> Self {
14        Self {
15            iter,
16            count_columns,
17            count_rows,
18        }
19    }
20}
21
22impl<I> IntoRecords for IterRecords<I>
23where
24    I: IntoRecords,
25{
26    type Cell = I::Cell;
27    type IterColumns = I::IterColumns;
28    type IterRows = I::IterRows;
29
30    fn iter_rows(self) -> Self::IterRows {
31        self.iter.iter_rows()
32    }
33}
34
35impl<I> Records for IterRecords<I>
36where
37    I: IntoRecords,
38{
39    type Iter = I;
40
41    fn iter_rows(self) -> <Self::Iter as IntoRecords>::IterRows {
42        self.iter.iter_rows()
43    }
44
45    fn count_columns(&self) -> usize {
46        self.count_columns
47    }
48
49    fn hint_count_rows(&self) -> Option<usize> {
50        self.count_rows
51    }
52}
53
54impl<'a, I> Records for &'a IterRecords<I>
55where
56    &'a I: IntoRecords,
57{
58    type Iter = &'a I;
59
60    fn iter_rows(self) -> <Self::Iter as IntoRecords>::IterRows {
61        (&self.iter).iter_rows()
62    }
63
64    fn count_columns(&self) -> usize {
65        self.count_columns
66    }
67
68    fn hint_count_rows(&self) -> Option<usize> {
69        self.count_rows
70    }
71}
papergrid/records/iter_records.rs

papergrid/records/
iter_records.rs
