13 files changed, 78 insertions, 5 deletions
diff --git a/src/qml/compiler/qv4bytecodegenerator_p.h b/src/qml/compiler/qv4bytecodegenerator_p.h
index 1895a34a68..5244c443c4 100644
--- a/src/qml/compiler/qv4bytecodegenerator_p.h
+++ b/src/qml/compiler/qv4bytecodegenerator_p.h
@@ -186,13 +186,13 @@ QT_WARNING_POP
 
     Q_REQUIRED_RESULT Jump jumpNotUndefined()
     {
-        Instruction::JumpNotUndefined data;
+        Instruction::JumpNotUndefined data{};
         return addJumpInstruction(data);
     }
 
     Q_REQUIRED_RESULT Jump jumpNoException()
     {
-        Instruction::JumpNoException data;
+        Instruction::JumpNoException data{};
         return addJumpInstruction(data);
     }
 
diff --git a/src/qml/compiler/qv4codegen.cpp b/src/qml/compiler/qv4codegen.cpp
index 4588690307..5a0dc11fbf 100644
--- a/src/qml/compiler/qv4codegen.cpp
+++ b/src/qml/compiler/qv4codegen.cpp
@@ -2927,6 +2927,17 @@ bool Codegen::visit(YieldExpression *ast)
         return false;
     }
 
+    auto innerMostCurentFunctionContext = _context;
+    while (innerMostCurentFunctionContext && innerMostCurentFunctionContext->contextType != ContextType::Function)
+        innerMostCurentFunctionContext = innerMostCurentFunctionContext->parent;
+
+    Q_ASSERT(innerMostCurentFunctionContext); // yield outside function would have been rejected by parser
+
+    if (!innerMostCurentFunctionContext->isGenerator) {
+        throwSyntaxError(ast->firstSourceLocation(), QLatin1String("Yield is only valid in generator functions"));
+        return false;
+    }
+
     RegisterScope scope(this);
     TailCallBlocker blockTailCalls(this);
     Reference expr = ast->expression ? expression(ast->expression) : Reference::fromConst(this, Encode::undefined());
diff --git a/src/qml/debugger/debugger.pri b/src/qml/debugger/debugger.pri
index 1281886816..6f976e149e 100644
--- a/src/qml/debugger/debugger.pri
+++ b/src/qml/debugger/debugger.pri
@@ -15,6 +15,7 @@ qtConfig(qml-debug) {
         $$PWD/qqmldebugservice.cpp \
         $$PWD/qqmlabstractprofileradapter.cpp \
         $$PWD/qqmlprofiler.cpp \
+        $$PWD/qqmldebugserver.cpp \
         $$PWD/qqmldebugserviceinterfaces.cpp
 }
 
diff --git a/src/qml/debugger/qqmldebugconnector_p.h b/src/qml/debugger/qqmldebugconnector_p.h
index d1ad90adfd..4f7b013160 100644
--- a/src/qml/debugger/qqmldebugconnector_p.h
+++ b/src/qml/debugger/qqmldebugconnector_p.h
@@ -65,6 +65,7 @@ QT_BEGIN_NAMESPACE
 
 class Q_QML_PRIVATE_EXPORT QQmlDebugConnector
 {
+    virtual ~QQmlDebugConnector() = default; // don't break 'override' on ~QQmlDebugServer
 public:
     static QQmlDebugConnector *instance() { return nullptr; }
 
diff --git a/src/qml/debugger/qqmldebugserver.cpp b/src/qml/debugger/qqmldebugserver.cpp
new file mode 100644
index 0000000000..5119fc4209
--- /dev/null
+++ b/src/qml/debugger/qqmldebugserver.cpp
@@ -0,0 +1,49 @@
+/****************************************************************************
+**
+** Copyright (C) 2022 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qqmldebugserver_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QQmlDebugServer::~QQmlDebugServer()
+    = default;
+
+QT_END_NAMESPACE
+
+#include "moc_qqmldebugserver_p.cpp"
diff --git a/src/qml/debugger/qqmldebugserver_p.h b/src/qml/debugger/qqmldebugserver_p.h
index e848b00bda..c99155051c 100644
--- a/src/qml/debugger/qqmldebugserver_p.h
+++ b/src/qml/debugger/qqmldebugserver_p.h
@@ -62,6 +62,7 @@ class Q_QML_PRIVATE_EXPORT QQmlDebugServer : public QQmlDebugConnector
 {
     Q_OBJECT
 public:
+    ~QQmlDebugServer() override;
     virtual void setDevice(QIODevice *socket) = 0;
 };
 
diff --git a/src/qml/jsruntime/qv4arrayiterator.cpp b/src/qml/jsruntime/qv4arrayiterator.cpp
index 199b1a728a..51387edf6e 100644
--- a/src/qml/jsruntime/qv4arrayiterator.cpp
+++ b/src/qml/jsruntime/qv4arrayiterator.cpp
@@ -86,18 +86,18 @@ ReturnedValue ArrayIteratorPrototype::method_next(const FunctionObject *b, const
         return IteratorPrototype::createIterResultObject(scope.engine, Value::fromInt32(index), false);
     }
 
-    ReturnedValue elementValue = a->get(index);
+    QV4::ScopedValue elementValue(scope, a->get(index));
     CHECK_EXCEPTION();
 
     if (itemKind == ValueIteratorKind) {
-        return IteratorPrototype::createIterResultObject(scope.engine, Value::fromReturnedValue(elementValue), false);
+        return IteratorPrototype::createIterResultObject(scope.engine, elementValue, false);
     } else {
         Q_ASSERT(itemKind == KeyValueIteratorKind);
 
         ScopedArrayObject resultArray(scope, scope.engine->newArrayObject());
         resultArray->arrayReserve(2);
         resultArray->arrayPut(0, Value::fromInt32(index));
-        resultArray->arrayPut(1, Value::fromReturnedValue(elementValue));
+        resultArray->arrayPut(1, elementValue);
         resultArray->setArrayLengthUnchecked(2);
 
         return IteratorPrototype::createIterResultObject(scope.engine, resultArray, false);
diff --git a/src/qml/jsruntime/qv4promiseobject.cpp b/src/qml/jsruntime/qv4promiseobject.cpp
index ecaff72b22..ac1cc81771 100644
--- a/src/qml/jsruntime/qv4promiseobject.cpp
+++ b/src/qml/jsruntime/qv4promiseobject.cpp
@@ -116,6 +116,8 @@ struct ResolveThenableEvent : public QEvent
 } // namespace QV4
 QT_END_NAMESPACE
 
+#include "moc_qv4promiseobject_p.cpp"
+
 ReactionHandler::ReactionHandler(QObject *parent)
     : QObject(parent)
 {}
diff --git a/src/qml/qml/qqmlcomponent.cpp b/src/qml/qml/qqmlcomponent.cpp
index c785f8ef51..df193a0591 100644
--- a/src/qml/qml/qqmlcomponent.cpp
+++ b/src/qml/qml/qqmlcomponent.cpp
@@ -1775,3 +1775,4 @@ void QV4::QmlIncubatorObject::statusChanged(QQmlIncubator::Status s)
 QT_END_NAMESPACE
 
 #include "moc_qqmlcomponent.cpp"
+#include "moc_qqmlcomponentattached_p.cpp"
diff --git a/src/qml/qml/qqmlcomponentattached_p.h b/src/qml/qml/qqmlcomponentattached_p.h
index 8ecd9da17d..d7c04a82f1 100644
--- a/src/qml/qml/qqmlcomponentattached_p.h
+++ b/src/qml/qml/qqmlcomponentattached_p.h
@@ -58,6 +58,7 @@
 QT_BEGIN_NAMESPACE
 
 
+// implemented in qqmlcomponent.cpp
 class Q_QML_PRIVATE_EXPORT QQmlComponentAttached : public QObject
 {
     Q_OBJECT
diff --git a/src/qml/qml/qqmlengine.cpp b/src/qml/qml/qqmlengine.cpp
index dcc2f8f7f5..826a1a5ab4 100644
--- a/src/qml/qml/qqmlengine.cpp
+++ b/src/qml/qml/qqmlengine.cpp
@@ -2671,4 +2671,6 @@ bool QQml_isFileCaseCorrect(const QString &fileName, int lengthIn /* = -1 */)
 
 QT_END_NAMESPACE
 
+#include "moc_qqmlengine_p.cpp"
+
 #include "moc_qqmlengine.cpp"
diff --git a/src/qml/qml/qqmltypeloadernetworkreplyproxy.cpp b/src/qml/qml/qqmltypeloadernetworkreplyproxy.cpp
index af97643163..bcc5306cf8 100644
--- a/src/qml/qml/qqmltypeloadernetworkreplyproxy.cpp
+++ b/src/qml/qml/qqmltypeloadernetworkreplyproxy.cpp
@@ -72,3 +72,5 @@ void QQmlTypeLoaderNetworkReplyProxy::manualFinished(QNetworkReply *reply)
 }
 
 QT_END_NAMESPACE
+
+#include "moc_qqmltypeloadernetworkreplyproxy_p.cpp"
diff --git a/src/qml/util/qqmlpropertymap.cpp b/src/qml/util/qqmlpropertymap.cpp
index 82f048d9d9..5c4cd7352a 100644
--- a/src/qml/util/qqmlpropertymap.cpp
+++ b/src/qml/util/qqmlpropertymap.cpp
@@ -370,3 +370,5 @@ QQmlPropertyMap::QQmlPropertyMap(const QMetaObject *staticMetaObject, QObject *p
 */
 
 QT_END_NAMESPACE
+
+#include "moc_qqmlpropertymap.cpp"