neon/sys/
primitive.rs

1use super::{
2    bindings as napi,
3    raw::{Env, Local},
4};
5
6/// Mutates the `out` argument provided to refer to the global `undefined` object.
7pub unsafe fn undefined(out: &mut Local, env: Env) {
8    napi::get_undefined(env, out as *mut Local).unwrap();
9}
10
11/// Mutates the `out` argument provided to refer to the global `null` object.
12pub unsafe fn null(out: &mut Local, env: Env) {
13    napi::get_null(env, out as *mut Local).unwrap();
14}
15
16/// Mutates the `out` argument provided to refer to one of the global `true` or `false` objects.
17pub unsafe fn boolean(out: &mut Local, env: Env, b: bool) {
18    napi::get_boolean(env, b, out as *mut Local).unwrap();
19}
20
21/// Get the boolean value out of a `Local` object. If the `Local` object does not contain a
22/// boolean, this function panics.
23pub unsafe fn boolean_value(env: Env, p: Local) -> bool {
24    let mut value = false;
25    assert_eq!(
26        napi::get_value_bool(env, p, &mut value as *mut bool),
27        Ok(())
28    );
29    value
30}
31
32/// Mutates the `out` argument provided to refer to a newly created `Local` containing a
33/// JavaScript number.
34pub unsafe fn number(out: &mut Local, env: Env, v: f64) {
35    napi::create_double(env, v, out as *mut Local).unwrap();
36}
37
38/// Gets the underlying value of an `Local` object containing a JavaScript number. Panics if
39/// the given `Local` is not a number.
40pub unsafe fn number_value(env: Env, p: Local) -> f64 {
41    let mut value = 0.0;
42    napi::get_value_double(env, p, &mut value as *mut f64).unwrap();
43    value
44}
neon/sys/primitive.rs

neon/sys/
primitive.rs
