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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
//! Utilities which statically ensure we're on the specified thread.
use std::marker::PhantomData;
#[derive(Copy, Clone)]
pub struct MainThreadGuard {
// For !Send and !Sync.
_not_send_not_sync: PhantomData<*const ()>,
}
pub fn get_main_thread_guard() -> Option<MainThreadGuard> {
moz_task::is_main_thread().then_some(MainThreadGuard {
_not_send_not_sync: PhantomData,
})
}