rusty_v8/
external_references.rs

1// Copyright 2019-2021 the Deno authors. All rights reserved. MIT license.
2use crate::support::intptr_t;
3use crate::AccessorNameGetterCallback;
4use crate::FunctionCallback;
5use crate::MessageCallback;
6
7#[derive(Clone, Copy)]
8pub union ExternalReference<'s> {
9  pub function: FunctionCallback,
10  pub getter: AccessorNameGetterCallback<'s>,
11  pub message: MessageCallback,
12}
13
14#[derive(Debug)]
15pub struct ExternalReferences {
16  null_terminated: Vec<intptr_t>,
17}
18
19unsafe impl Sync for ExternalReferences {}
20
21impl ExternalReferences {
22  pub fn new(refs: &[ExternalReference]) -> Self {
23    let null_terminated = refs
24      .iter()
25      .map(|&r| unsafe { std::mem::transmute(r) })
26      .chain(std::iter::once(0)) // Add null terminator.
27      .collect::<Vec<intptr_t>>();
28    Self { null_terminated }
29  }
30
31  pub fn as_ptr(&self) -> *const intptr_t {
32    self.null_terminated.as_ptr()
33  }
34}
35
36impl std::ops::Deref for ExternalReferences {
37  type Target = [intptr_t];
38  fn deref(&self) -> &Self::Target {
39    &*self.null_terminated
40  }
41}
42
43impl std::borrow::Borrow<[intptr_t]> for ExternalReferences {
44  fn borrow(&self) -> &[intptr_t] {
45    &**self
46  }
47}
rusty_v8/external_references.rs

rusty_v8/
external_references.rs
