LibJS: Convert Promise::create() to NonnullGCPtr

Userland/Libraries/LibJS/Module.cpp

@@ -47,7 +47,7 @@ ThrowCompletionOr<u32> Module::inner_module_evaluation(VM& vm, Vector<Module*>&,
 {
     // 1. If module is not a Cyclic Module Record, then
     // a. Let promise be ! module.Evaluate().
-    auto* promise = TRY(evaluate(vm));
+    auto promise = TRY(evaluate(vm));
 
     // b. Assert: promise.[[PromiseState]] is not pending.
     VERIFY(promise->state() != Promise::State::Pending);

Userland/Libraries/LibJS/Runtime/AsyncFunctionDriverWrapper.cpp

@@ -56,7 +56,7 @@ ThrowCompletionOr<Value> AsyncFunctionDriverWrapper::react_to_async_task_complet
         return promise;
     }
 
-    auto* promise = static_cast<Promise*>(&promise_value.as_object());
+    auto promise = static_cast<Promise*>(&promise_value.as_object());
     if (TRY(result.get(vm, vm.names.done)).to_boolean())
         return promise;
 

Userland/Libraries/LibJS/Runtime/Completion.cpp

@@ -89,7 +89,7 @@ ThrowCompletionOr<Value> await(VM& vm, Value value)
     auto on_rejected = NativeFunction::create(realm, move(rejected_closure), 1, "");
 
     // 7. Perform PerformPromiseThen(promise, onFulfilled, onRejected).
-    auto* promise = verify_cast<Promise>(promise_object);
+    auto promise = verify_cast<Promise>(promise_object);
     promise->perform_then(on_fulfilled, on_rejected, {});
 
     // FIXME: Since we don't support context suspension, we attempt to "wait" for the promise to resolve

Userland/Libraries/LibJS/Runtime/Promise.cpp

@@ -42,9 +42,9 @@ ThrowCompletionOr<Object*> promise_resolve(VM& vm, Object& constructor, Value va
     return promise_capability->promise().ptr();
 }
 
-Promise* Promise::create(Realm& realm)
+NonnullGCPtr<Promise> Promise::create(Realm& realm)
 {
-    return realm.heap().allocate<Promise>(realm, *realm.intrinsics().promise_prototype());
+    return *realm.heap().allocate<Promise>(realm, *realm.intrinsics().promise_prototype());
 }
 
 // 27.2 Promise Objects, https://tc39.es/ecma262/#sec-promise-objects

Userland/Libraries/LibJS/Runtime/Promise.h

@@ -27,7 +27,7 @@ public:
         Handle,
     };
 
-    static Promise* create(Realm&);
+    static NonnullGCPtr<Promise> create(Realm&);
 
     virtual ~Promise() = default;
 

Userland/Libraries/LibJS/Runtime/PromiseCapability.cpp

@@ -78,7 +78,7 @@ ThrowCompletionOr<NonnullGCPtr<PromiseCapability>> new_promise_capability(VM& vm
     auto executor = NativeFunction::create(realm, move(executor_closure), 2, "");
 
     // 6. Let promise be ? Construct(C, « executor »).
-    auto* promise = TRY(construct(vm, constructor.as_function(), executor));
+    auto promise = TRY(construct(vm, constructor.as_function(), executor));
 
     // 7. If IsCallable(promiseCapability.[[Resolve]]) is false, throw a TypeError exception.
     // NOTE: We only assign a value in the executor closure if it is a function.

Userland/Libraries/LibJS/Runtime/PromiseConstructor.cpp

@@ -290,7 +290,7 @@ ThrowCompletionOr<Object*> PromiseConstructor::construct(FunctionObject& new_tar
     // 5. Set promise.[[PromiseFulfillReactions]] to a new empty List.
     // 6. Set promise.[[PromiseRejectReactions]] to a new empty List.
     // 7. Set promise.[[PromiseIsHandled]] to false.
-    auto* promise = TRY(ordinary_create_from_constructor<Promise>(vm, new_target, &Intrinsics::promise_prototype));
+    auto promise = TRY(ordinary_create_from_constructor<Promise>(vm, new_target, &Intrinsics::promise_prototype));
 
     // 8. Let resolvingFunctions be CreateResolvingFunctions(promise).
     auto [resolve_function, reject_function] = promise->create_resolving_functions();

Userland/Libraries/LibJS/Runtime/PromisePrototype.cpp

@@ -45,7 +45,7 @@ JS_DEFINE_NATIVE_FUNCTION(PromisePrototype::then)
 
     // 1. Let promise be the this value.
     // 2. If IsPromise(promise) is false, throw a TypeError exception.
-    auto* promise = TRY(typed_this_object(vm));
+    auto promise = TRY(typed_this_object(vm));
 
     // 3. Let C be ? SpeciesConstructor(promise, %Promise%).
     auto* constructor = TRY(species_constructor(vm, *promise, *realm.intrinsics().promise_constructor()));
@@ -113,7 +113,7 @@ JS_DEFINE_NATIVE_FUNCTION(PromisePrototype::finally)
             auto result = TRY(call(vm, on_finally, js_undefined()));
 
             // ii. Let promise be ? PromiseResolve(C, result).
-            auto* promise = TRY(promise_resolve(vm, constructor, result));
+            auto promise = TRY(promise_resolve(vm, constructor, result));
 
             // iii. Let returnValue be a new Abstract Closure with no parameters that captures value and performs the following steps when called:
             auto return_value = [value_handle = make_handle(value)](auto&) -> ThrowCompletionOr<Value> {
@@ -142,7 +142,7 @@ JS_DEFINE_NATIVE_FUNCTION(PromisePrototype::finally)
             auto result = TRY(call(vm, on_finally, js_undefined()));
 
             // ii. Let promise be ? PromiseResolve(C, result).
-            auto* promise = TRY(promise_resolve(vm, constructor, result));
+            auto promise = TRY(promise_resolve(vm, constructor, result));
 
             // iii. Let throwReason be a new Abstract Closure with no parameters that captures reason and performs the following steps when called:
             auto throw_reason = [reason_handle = make_handle(reason)](auto&) -> ThrowCompletionOr<Value> {

Userland/Libraries/LibJS/Runtime/VM.cpp

@@ -75,7 +75,7 @@ VM::VM(OwnPtr<CustomData> custom_data)
         // By default, we throw on dynamic imports this is to prevent arbitrary file access by scripts.
         VERIFY(current_realm());
         auto& realm = *current_realm();
-        auto* promise = Promise::create(realm);
+        auto promise = Promise::create(realm);
 
         // If you are here because you want to enable dynamic module importing make sure it won't be a security problem
         // by checking the default implementation of HostImportModuleDynamically and creating your own hook or calling
@@ -965,7 +965,7 @@ void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module,
     //    FinishDynamicImport(referencingScriptOrModule, moduleRequest, promiseCapability, promise),
     //    where promise is a Promise rejected with an error representing the cause of failure.
 
-    auto* promise = Promise::create(realm);
+    auto promise = Promise::create(realm);
 
     ScopeGuard finish_dynamic_import = [&] {
         host_finish_dynamic_import(referencing_script_or_module, module_request, promise_capability, promise);

Userland/Libraries/LibJS/SyntheticModule.cpp

@@ -107,7 +107,7 @@ ThrowCompletionOr<Promise*> SyntheticModule::evaluate(VM& vm)
 
     // 12. Return Completion(result).
     // Note: Because we expect it to return a promise we convert this here.
-    auto* promise = Promise::create(realm());
+    auto promise = Promise::create(realm());
     if (result.is_error()) {
         VERIFY(result.throw_completion().value().has_value());
         promise->reject(*result.throw_completion().value());
@@ -115,7 +115,7 @@ ThrowCompletionOr<Promise*> SyntheticModule::evaluate(VM& vm)
         // Note: This value probably isn't visible to JS code? But undefined is fine anyway.
         promise->fulfill(js_undefined());
     }
-    return promise;
+    return promise.ptr();
 }
 
 // 1.2.2 SetSyntheticModuleExport ( module, exportName, exportValue ), https://tc39.es/proposal-json-modules/#sec-setsyntheticmoduleexport