neon/sys/
scope.rs

1use std::mem::MaybeUninit;
2
3use super::{
4    bindings as napi,
5    raw::{Env, Local},
6};
7
8pub(crate) struct HandleScope {
9    env: Env,
10    scope: napi::HandleScope,
11}
12
13impl HandleScope {
14    pub(crate) unsafe fn new(env: Env) -> Self {
15        let mut scope = MaybeUninit::uninit();
16
17        napi::open_handle_scope(env, scope.as_mut_ptr()).unwrap();
18
19        Self {
20            env,
21            scope: scope.assume_init(),
22        }
23    }
24}
25
26impl Drop for HandleScope {
27    fn drop(&mut self) {
28        unsafe {
29            let _status = napi::close_handle_scope(self.env, self.scope);
30
31            debug_assert_eq!(_status, Ok(()),);
32        }
33    }
34}
35
36pub(crate) struct EscapableHandleScope {
37    env: Env,
38    scope: napi::EscapableHandleScope,
39}
40
41impl EscapableHandleScope {
42    pub(crate) unsafe fn new(env: Env) -> Self {
43        let mut scope = MaybeUninit::uninit();
44
45        napi::open_escapable_handle_scope(env, scope.as_mut_ptr()).unwrap();
46
47        Self {
48            env,
49            scope: scope.assume_init(),
50        }
51    }
52
53    pub(crate) unsafe fn escape(&self, value: napi::Value) -> napi::Value {
54        let mut escapee = MaybeUninit::uninit();
55
56        napi::escape_handle(self.env, self.scope, value, escapee.as_mut_ptr()).unwrap();
57
58        escapee.assume_init()
59    }
60}
61
62impl Drop for EscapableHandleScope {
63    fn drop(&mut self) {
64        unsafe {
65            let _status = napi::close_escapable_handle_scope(self.env, self.scope);
66
67            debug_assert_eq!(_status, Ok(()),);
68        }
69    }
70}
71
72pub unsafe fn get_global(env: Env, out: &mut Local) {
73    super::get_global(env, out as *mut _).unwrap();
74}
neon/sys/scope.rs

neon/sys/
scope.rs
