serde_json_lodash 0.1.16

lodash.js ported version, work with serde_json::Value
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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

use crate::lib::{Value, Number};
use crate::internal::{number_nan, value_nan, value_to_option_number};

///
pub fn x_ceil_x(n: Number, precision: isize) -> Number {
    if n.is_u64() {
        if precision < 0 {
            let f = n.as_f64().unwrap();
            let x = 10_f64.powi(precision as i32);
            let result = (f * x).ceil() / x;
            return Number::from(result as u64);
        } else {
            return n;
        }
    }
    if n.is_i64() {
        if precision < 0 {
            let f = n.as_f64().unwrap();
            let x = 10_f64.powi(precision as i32);
            let result = (f * x).ceil() / x;
            return Number::from(result as i64);
        } else {
            return n;
        }
    }
    // f64
    if precision == 0 {
        let result = n.as_f64().unwrap().ceil();
        if result < 0.0 {
            return Number::from(result as i64);
        } else {
            return Number::from(result as u64);
        }
    }
    let f = n.as_f64().unwrap();
    let x = 10_f64.powi(precision as i32);
    let result = (f * x).ceil() / x;
    if precision < 0 {
        if result < 0.0 {
            return Number::from(result as i64);
        } else {
            return Number::from(result as u64);
        }
    }
    Number::from_f64(result).unwrap_or_else(number_nan)
}
///
pub fn x_ceil(number: Number, precision: isize) -> Value {
    Value::Number(x_ceil_x(number, precision))
}
/// See lodash [ceil](https://lodash.com/docs/#ceil)
pub fn ceil(number: Value, precision: isize) -> Value {
    match value_to_option_number(number) {
        Some(n) => x_ceil(n, precision),
        None => value_nan(),
    }
}

/// Based on [x_ceil_x()]
///
/// Examples:
///
/// ```rust
/// #[macro_use] extern crate serde_json_lodash;
/// use serde_json::Number;
/// assert_eq!(
///   x_ceil_x!(Number::from_f64(4.006).unwrap()),
///   Number::from(5)
/// );
/// assert_eq!(
///   x_ceil_x!(Number::from_f64(6.004).unwrap(), 2),
///   Number::from_f64(6.01).unwrap()
/// );
/// assert_eq!(
///   x_ceil_x!(Number::from(6040), -2),
///   Number::from(6100)
/// );
/// ```
///
/// More examples:
///
/// ```rust
/// # #[macro_use] extern crate serde_json_lodash;
/// # use serde_json::{json, Number};
/// assert_eq!(
///   x_ceil_x!(),
///   Number::from(0)
/// );
/// ```
#[macro_export]
macro_rules! x_ceil_x {
    () => {
        $crate::internal::number_nan()
    };
    ($a:expr $(,)*) => {
        $crate::x_ceil_x($a, 0)
    };
    ($a:expr, $b:expr $(,)*) => {
        $crate::x_ceil_x($a, $b)
    };
    ($a:expr, $b:expr, $($rest:tt)*) => {
        $crate::x_ceil_x($a, $b)
    };
}
/// Based on [ceil()]
///
/// Examples:
///
/// ```rust
/// #[macro_use] extern crate serde_json_lodash;
/// use serde_json::json;
/// assert_eq!(
///   ceil!(json!(4.006)),
///   json!(5)
/// );
/// assert_eq!(
///   ceil!(json!(6.004), 2),
///   json!(6.01)
/// );
/// assert_eq!(
///   ceil!(json!(6040), -2),
///   json!(6100)
/// );
/// ```
///
/// More examples:
///
/// ```rust
/// # #[macro_use] extern crate serde_json_lodash;
/// # use serde_json::json;
/// assert_eq!(ceil!(), json!(f64::NAN));
/// assert_eq!(ceil!(json!(null)), json!(0));
/// assert_eq!(ceil!(json!(false)), json!(0));
/// assert_eq!(ceil!(json!(true)), json!(1));
/// assert_eq!(ceil!(json!(0)), json!(0));
/// assert_eq!(ceil!(json!(1.1)), json!(2));
/// assert_eq!(ceil!(json!("")), json!(0));
/// assert_eq!(ceil!(json!("1.1")), json!(2));
/// assert_eq!(ceil!(json!("a")), json!(f64::NAN));
/// assert_eq!(ceil!(json!([])), json!(0));
/// assert_eq!(ceil!(json!([1.1])), json!(2));
/// assert_eq!(ceil!(json!(["a"])), json!(f64::NAN));
/// assert_eq!(ceil!(json!({})), json!(f64::NAN));
/// assert_eq!(ceil!(json!({"a":1})), json!(f64::NAN));
/// ```
#[macro_export]
macro_rules! ceil {
    () => {
        $crate::internal::value_nan()
    };
    ($a:expr $(,)*) => {
        $crate::ceil($a, 0)
    };
    ($a:expr, $b:expr $(,)*) => {
        $crate::ceil($a, $b)
    };
    ($a:expr, $b:expr, $($rest:tt)*) => {
        $crate::ceil($a, $b)
    };
}