ts-native-math 0.1.0

Math API extension for ts-native
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

use std::os::raw::{c_double, c_char, c_ulong};
use std::ffi::CStr;

#[no_mangle]
pub extern "C" fn js_math_sin(x: c_double) -> c_double {
    x.sin()
}

#[no_mangle]
pub extern "C" fn js_math_cos(x: c_double) -> c_double {
    x.cos()
}

#[no_mangle]
pub extern "C" fn js_math_tan(x: c_double) -> c_double {
    x.tan()
}

#[no_mangle]
pub extern "C" fn js_math_sqrt(x: c_double) -> c_double {
    if x < 0.0 { 0.0 } else { x.sqrt() }
}

#[no_mangle]
pub extern "C" fn js_math_pow(base: c_double, exp: c_double) -> c_double {
    base.powf(exp)
}

#[no_mangle]
pub extern "C" fn js_math_abs(x: c_double) -> c_double {
    x.abs()
}

#[no_mangle]
pub extern "C" fn js_math_floor(x: c_double) -> c_double {
    x.floor()
}

#[no_mangle]
pub extern "C" fn js_math_ceil(x: c_double) -> c_double {
    x.ceil()
}

#[no_mangle]
pub extern "C" fn js_math_round(x: c_double) -> c_double {
    x.round()
}

#[no_mangle]
pub extern "C" fn js_math_min(a: c_double, b: c_double) -> c_double {
    a.min(b)
}

#[no_mangle]
pub extern "C" fn js_math_max(a: c_double, b: c_double) -> c_double {
    a.max(b)
}

#[no_mangle]
pub extern "C" fn js_parse_int(str_ptr: *const c_char) -> c_double {
    if str_ptr.is_null() {
        return 0.0;
    }
    let c_str = unsafe { CStr::from_ptr(str_ptr) };
    if let Ok(s) = c_str.to_str() {
        s.trim().parse::<i64>().unwrap_or(0) as c_double
    } else {
        0.0
    }
}

#[no_mangle]
pub extern "C" fn js_parse_float(str_ptr: *const c_char) -> c_double {
    if str_ptr.is_null() {
        return 0.0;
    }
    let c_str = unsafe { CStr::from_ptr(str_ptr) };
    if let Ok(s) = c_str.to_str() {
        s.trim().parse::<f64>().unwrap_or(0.0)
    } else {
        0.0
    }
}

#[no_mangle]
pub extern "C" fn js_console_log(value: c_ulong) {
    println!("[log] {:?}", value);
}

#[no_mangle]
pub extern "C" fn js_console_error(value: c_ulong) {
    eprintln!("[error] {:?}", value);
}