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LibJS: Add the FinalizationRegistry built-in object

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As well as the needed functionality in VM to enqueue and run cleanup
jobs for the FinalizationRegistry instances.
This commit is contained in:
Idan Horowitz 2021-06-15 22:16:17 +03:00 • committed by Linus Groh
parent 8c7fe8d6c8
commit de9fa6622a
14 changed files with 365 additions and 20 deletions
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15
Userland/Libraries/LibJS/Runtime/VM.cpp
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@ -11,6 +11,7 @@
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/FinalizationRegistry.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/IteratorOperations.h>
#include <LibJS/Runtime/NativeFunction.h>
@ -557,6 +558,20 @@ void VM::enqueue_promise_job(NativeFunction& job)
m_promise_jobs.append(&job);
}
void VM::run_queued_finalization_registry_cleanup_jobs()
{
while (!m_finalization_registry_cleanup_jobs.is_empty()) {
auto* registry = m_finalization_registry_cleanup_jobs.take_first();
registry->cleanup();
}
}
// 9.10.4.1 HostEnqueueFinalizationRegistryCleanupJob ( finalizationRegistry ), https://tc39.es/ecma262/#sec-host-cleanup-finalization-registry
void VM::enqueue_finalization_registry_cleanup_job(FinalizationRegistry& registry)
{
m_finalization_registry_cleanup_jobs.append(&registry);
}
// 27.2.1.9 HostPromiseRejectionTracker ( promise, operation ), https://tc39.es/ecma262/#sec-host-promise-rejection-tracker
void VM::promise_rejection_tracker(const Promise& promise, Promise::RejectionOperation operation) const
{