apple_quant_algorithmic/timestamp/
range.rs

1use super::{Timestamp, TimestampError};
2
3#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
4pub struct TimestampRangeExclusive {
5	pub start: Timestamp,
6	pub end: Timestamp,
7}
8
9#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
10pub enum TimestampRangeInclusive {
11	One(Timestamp),
12
13	Multiple {
14		start: Timestamp,
15		last: Timestamp,
16	},
17}
18
19impl TimestampRangeInclusive {
20	pub fn new_from_iter(
21		timestamps: impl IntoIterator<Item = &Timestamp>,
22	) -> Result<Self, TimestampError> {
23		let mut iter = timestamps.into_iter();
24
25		let Some(
26			mut start,
27		) = iter.next().cloned() else {
28			return Err(TimestampError::RangeNotSatisfied { min: None, max: None });
29		};
30
31		let Some(
32			mut last,
33		) = iter.next().cloned() else {
34			return Ok(Self::One(start));
35		};
36
37		if start > last {
38			let older_timestamp = start;
39			start = last;
40			last = older_timestamp;
41		}
42
43		for &timestamp in iter {
44			if timestamp < start {
45				start = timestamp;
46			}
47
48			if timestamp > last {
49				last = timestamp;
50			}
51		}
52
53		Ok(Self::Multiple { start, last })
54	}
55
56	pub fn start(
57		&self,
58	) -> &Timestamp {
59		match self {
60			Self::One(
61				timestamp,
62			) => timestamp,
63			Self::Multiple {
64				start,
65				last: _,
66			} => start,
67		}
68	}
69
70	pub fn last(
71		&self,
72	) -> &Timestamp {
73		match self {
74			Self::One(
75				timestamp,
76			) => timestamp,
77			Self::Multiple {
78				start: _,
79				last,
80			} => last,
81		}
82	}
83}
apple_quant_algorithmic/timestamp/range.rs

apple_quant_algorithmic/timestamp/
range.rs
