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
115
116
117
118
119
120
121
122
123
use crate::{Dummy, Faker};
use rand::distributions::{Distribution, Uniform};
use rand::Rng;
use std::ops;
macro_rules! faker_impl {
($typ:ty) => {
impl Dummy<$typ> for $typ {
fn dummy(t: &$typ) -> Self {
t.clone()
}
fn dummy_with_rng<R: Rng + ?Sized>(t: &$typ, _rng: &mut R) -> Self {
t.clone()
}
}
impl Dummy<Faker> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(_: &Faker, rng: &mut R) -> Self {
rng.gen()
}
}
};
}
macro_rules! range_impl {
($typ:ident) => {
impl Dummy<ops::Range<Self>> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(range: &ops::Range<Self>, rng: &mut R) -> Self {
rng.gen_range(range.start..range.end)
}
}
impl Dummy<ops::RangeFrom<Self>> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(range: &ops::RangeFrom<Self>, rng: &mut R) -> Self {
let u = Uniform::new_inclusive(range.start, std::$typ::MAX);
u.sample(rng)
}
}
impl Dummy<ops::RangeFull> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(_: &ops::RangeFull, rng: &mut R) -> Self {
let u = Uniform::new_inclusive(std::$typ::MIN, std::$typ::MAX);
u.sample(rng)
}
}
impl Dummy<ops::RangeInclusive<Self>> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(
range: &ops::RangeInclusive<Self>,
rng: &mut R,
) -> Self {
let u = Uniform::new_inclusive(range.start(), range.end());
u.sample(rng)
}
}
impl Dummy<ops::RangeTo<Self>> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(range: &ops::RangeTo<Self>, rng: &mut R) -> Self {
rng.gen_range(std::$typ::MIN..range.end)
}
}
impl Dummy<ops::RangeToInclusive<Self>> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(
range: &ops::RangeToInclusive<Self>,
rng: &mut R,
) -> Self {
let u = Uniform::new_inclusive(std::$typ::MIN, range.end);
u.sample(rng)
}
}
};
}
macro_rules! number_impl {
($typ:ident) => {
impl Dummy<Uniform<Self>> for $typ {
fn dummy_with_rng<R: Rng + ?Sized>(dist: &Uniform<Self>, rng: &mut R) -> Self {
dist.sample(rng)
}
}
};
}
macro_rules! integer_impl {
($typ:ident) => {
faker_impl!($typ);
number_impl!($typ);
range_impl!($typ);
};
}
macro_rules! float_impl {
($typ:ident) => {
faker_impl!($typ);
number_impl!($typ);
range_impl!($typ);
};
}
faker_impl!(());
faker_impl!(bool);
faker_impl!(char);
integer_impl!(u8);
integer_impl!(u16);
integer_impl!(u32);
integer_impl!(u64);
#[cfg(not(target_os = "emscripten"))]
integer_impl!(u128);
integer_impl!(usize);
integer_impl!(i8);
integer_impl!(i16);
integer_impl!(i32);
integer_impl!(i64);
#[cfg(not(target_os = "emscripten"))]
integer_impl!(i128);
integer_impl!(isize);
float_impl!(f32);
float_impl!(f64);