orx-parallel 4.0.0

Performant parallel computations with an expressive iterator API.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114

use crate::parameters::IterationOrder;
use crate::result::tests::utils::inputs;
use crate::*;
use std::vec;
use std::vec::Vec;

const N: usize = 157;

#[test]
fn bin_m_find_ok() {
    let inputs = inputs(N);
    let result = inputs
        .into_par()
        .filter_map::<Result<_, Vec<char>>, _>(|x| match x.as_str() == "7" {
            true => None,
            false => Some(Ok(x)),
        })
        .into_fallible()
        .filter(|x| x.len() < 4)
        .map(|x| x.parse::<u64>().unwrap())
        .first();
    assert_eq!(result, Ok(Some(0)));
}

#[test]
fn bin_m_find_any_ok() {
    let inputs = inputs(N);
    let result = inputs
        .into_par()
        .filter_map::<Result<_, Vec<char>>, _>(|x| match x.as_str() == "7" {
            true => None,
            false => Some(Ok(x)),
        })
        .into_fallible()
        .filter(|x| x.len() < 4)
        .map(|x| x.parse::<u64>().unwrap())
        .iteration_order(IterationOrder::Arbitrary)
        .first();
    assert!(result.is_ok());
}

#[test]
fn bin_m_reduce_ok() {
    let inputs = inputs(N);
    let result = inputs
        .into_par()
        .filter_map::<Result<_, Vec<char>>, _>(|x| match x.as_str() == "7" {
            true => None,
            false => Some(Ok(x)),
        })
        .into_fallible()
        .filter(|x| x.len() < 4)
        .map(|x| x.parse::<u64>().unwrap())
        .reduce(|a, b| match a < b {
            true => b,
            false => a,
        });
    assert_eq!(result, Ok(Some(156)));
}

#[test]
fn bin_m_reduce_err() {
    let inputs = inputs(N);
    let result = inputs
        .into_par()
        .filter_map::<Result<_, Vec<char>>, _>(|x| match x.as_str() == "7" {
            true => None,
            false => Some(match x.as_str() == "42" {
                true => Ok(x),
                false => Err(vec!['a']),
            }),
        })
        .into_fallible()
        .filter(|x| x.len() < 4)
        .map(|x| x.parse::<u64>().unwrap())
        .reduce(|a, b| match a < b {
            true => b,
            false => a,
        });
    assert_eq!(result, Err(vec!['a']));
}

#[test]
fn bin_m_collect_ok() {
    let result: Result<Vec<_>, Vec<char>> = inputs(N)
        .into_par()
        .filter_map::<Result<_, Vec<char>>, _>(|x| match x.as_str() == "7" {
            true => None,
            false => Some(Ok(x)),
        })
        .into_fallible()
        .filter(|x| x.len() < 4)
        .map(|x| x.parse::<u64>().unwrap())
        .collect();
    assert!(result.is_ok());
}

#[test]
fn bin_m_collect_err() {
    let result: Result<Vec<_>, Vec<char>> = inputs(N)
        .into_par()
        .filter_map::<Result<_, Vec<char>>, _>(|x| match x.as_str() == "7" {
            true => None,
            false => Some(match x.as_str() == "42" {
                true => Ok(x),
                false => Err(vec!['a']),
            }),
        })
        .into_fallible()
        .filter(|x| x.len() < 4)
        .map(|x| x.parse::<u64>().unwrap())
        .collect();
    assert!(result.is_err());
}