use js::jsapi::{GetCurrentRealmOrNull, JSAutoRealm};
use crate::dom::bindings::reflector::DomObject;
use crate::dom::globalscope::GlobalScope;
use crate::script_runtime::JSContext;
pub(crate) struct AlreadyInRealm(());
impl AlreadyInRealm {
#![allow(unsafe_code)]
pub(crate) fn assert() -> AlreadyInRealm {
unsafe {
assert!(!GetCurrentRealmOrNull(*GlobalScope::get_cx()).is_null());
}
AlreadyInRealm(())
}
pub(crate) fn assert_for_cx(cx: JSContext) -> AlreadyInRealm {
unsafe {
assert!(!GetCurrentRealmOrNull(*cx).is_null());
}
AlreadyInRealm(())
}
}
#[derive(Clone, Copy)]
pub(crate) enum InRealm<'a> {
Already(&'a AlreadyInRealm),
Entered(&'a JSAutoRealm),
}
impl InRealm<'_> {
pub(crate) fn already(token: &AlreadyInRealm) -> InRealm {
InRealm::Already(token)
}
pub(crate) fn entered(token: &JSAutoRealm) -> InRealm {
InRealm::Entered(token)
}
}
pub(crate) fn enter_realm(object: &impl DomObject) -> JSAutoRealm {
JSAutoRealm::new(
*GlobalScope::get_cx(),
object.reflector().get_jsobject().get(),
)
}