From 4c5ed04e64ea9ac0038ae30e1189cfe745b29bd9 Mon Sep 17 00:00:00 2001 From: Ulf Hermann Date: Thu, 23 Jan 2020 14:19:48 +0100 Subject: V4: Check for exceptions before we use the result of a JS call If the call resulted in an exception the return value is undefined. Task-number: QTBUG-81581 Change-Id: Ibfdd5e1229cf5437f270232d3b1a91308adeec72 Reviewed-by: Fabian Kosmale --- src/qml/jsruntime/qv4promiseobject.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/qml/jsruntime/qv4promiseobject.cpp') diff --git a/src/qml/jsruntime/qv4promiseobject.cpp b/src/qml/jsruntime/qv4promiseobject.cpp index 17d218a6eb..ecaff72b22 100644 --- a/src/qml/jsruntime/qv4promiseobject.cpp +++ b/src/qml/jsruntime/qv4promiseobject.cpp @@ -618,7 +618,7 @@ ReturnedValue PromiseCtor::method_all(const FunctionObject *f, const Value *this } ScopedObject nextPromise(scope, Value::fromReturnedValue(resolve->call(thisObject, nextValue, 1))); - if (!nextPromise || scope.hasException()) { + if (scope.hasException() || !nextPromise) { ScopedValue completion(scope, Runtime::IteratorClose::call(e, iteratorObject, doneValue)); if (scope.hasException()) { completion = e->exceptionValue->asReturnedValue(); @@ -764,7 +764,7 @@ ReturnedValue PromiseCtor::method_race(const FunctionObject *f, const Value *thi } ScopedObject nextPromise(scope, Value::fromReturnedValue(resolve->call(thisObject, nextValue, 1))); - if (!nextPromise || scope.hasException()) { + if (scope.hasException() || !nextPromise) { ScopedValue completion(scope, Runtime::IteratorClose::call(e, iteratorObject, doneValue)); if (scope.hasException()) { completion = e->exceptionValue->asReturnedValue(); -- cgit v1.2.3