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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use js::jsapi::{GetCurrentRealmOrNull, JSAutoRealm};
use crate::DomTypes;
use crate::interfaces::GlobalScopeHelpers;
use crate::reflector::DomObject;
use crate::script_runtime::JSContext;
pub struct AlreadyInRealm(());
impl AlreadyInRealm {
#![allow(unsafe_code)]
pub fn assert<D: DomTypes>() -> AlreadyInRealm {
unsafe {
assert!(!GetCurrentRealmOrNull(*D::GlobalScope::get_cx()).is_null());
}
AlreadyInRealm(())
}
pub fn assert_for_cx(cx: JSContext) -> AlreadyInRealm {
unsafe {
assert!(!GetCurrentRealmOrNull(*cx).is_null());
}
AlreadyInRealm(())
}
}
#[derive(Clone, Copy)]
pub enum InRealm<'a> {
Already(&'a AlreadyInRealm),
Entered(&'a JSAutoRealm),
}
impl<'a> From<&'a AlreadyInRealm> for InRealm<'a> {
fn from(token: &'a AlreadyInRealm) -> InRealm<'a> {
InRealm::already(token)
}
}
impl<'a> From<&'a JSAutoRealm> for InRealm<'a> {
fn from(token: &'a JSAutoRealm) -> InRealm<'a> {
InRealm::entered(token)
}
}
impl InRealm<'_> {
pub fn already(token: &AlreadyInRealm) -> InRealm {
InRealm::Already(token)
}
pub fn entered(token: &JSAutoRealm) -> InRealm {
InRealm::Entered(token)
}
}
pub fn enter_realm<D: DomTypes>(object: &impl DomObject) -> JSAutoRealm {
JSAutoRealm::new(
*D::GlobalScope::get_cx(),
object.reflector().get_jsobject().get(),
)
}
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