iter_scan/
iter_scan.rs

1use crate::{ScanClone, ScanCopy, ScanStateClone, ScanStateCopy, ScanWithTuple};
2
3/// Iterator scan methods that don't suck.
4pub trait IterScan: Iterator + Sized {
5    #[doc = include_str!("../docs/scan-clone.md")]
6    fn scan_clone<Compute, State>(
7        self,
8        initial: State,
9        compute: Compute,
10    ) -> ScanClone<Self, Compute, State>
11    where
12        State: Clone,
13        Compute: FnMut(State, Self::Item) -> State,
14    {
15        ScanClone::new(self, initial, compute)
16    }
17
18    #[doc = include_str!("../docs/scan-copy.md")]
19    fn scan_copy<Compute, State>(
20        self,
21        initial: State,
22        compute: Compute,
23    ) -> ScanCopy<Self, Compute, State>
24    where
25        State: Copy,
26        Compute: FnMut(State, Self::Item) -> State,
27    {
28        ScanCopy::new(self, initial, compute)
29    }
30
31    #[doc = include_str!("../docs/scan-state-clone.md")]
32    fn scan_state_clone<Compute, State, Value>(
33        self,
34        initial: State,
35        compute: Compute,
36    ) -> ScanStateClone<Self, Compute, State, Value>
37    where
38        State: Clone,
39        Compute: FnMut(State, Self::Item) -> (State, Value),
40    {
41        ScanStateClone::new(self, initial, compute)
42    }
43
44    #[doc = include_str!("../docs/scan-state-copy.md")]
45    fn scan_state_copy<Compute, State, Value>(
46        self,
47        initial: State,
48        compute: Compute,
49    ) -> ScanStateCopy<Self, Compute, State, Value>
50    where
51        State: Copy,
52        Compute: FnMut(State, Self::Item) -> (State, Value),
53    {
54        ScanStateCopy::new(self, initial, compute)
55    }
56
57    #[doc = include_str!("../docs/scan-with-tuple.md")]
58    fn scan_with_tuple<Compute, State, Value>(
59        self,
60        initial: State,
61        compute: Compute,
62    ) -> ScanWithTuple<Self, Compute, State, Value>
63    where
64        Compute: FnMut(State, Self::Item) -> (State, Value),
65    {
66        ScanWithTuple::new(self, initial, compute)
67    }
68}
69
70impl<X: Iterator + Sized> IterScan for X {}
iter_scan/iter_scan.rs

iter_scan/
iter_scan.rs
