3 files changed, 15 insertions, 10 deletions
diff --git a/src/qml/qml/qqmlexpression.cpp b/src/qml/qml/qqmlexpression.cpp
index 59cc9bb09f..27d3acb9b7 100644
--- a/src/qml/qml/qqmlexpression.cpp
+++ b/src/qml/qml/qqmlexpression.cpp
@@ -252,6 +252,11 @@ QV4::ReturnedValue QQmlExpressionPrivate::v4value(bool *isUndefined)
     if (!expressionFunctionValid) {
         createQmlBinding(context(), scopeObject(), expression, url, line);
         expressionFunctionValid = true;
+        if (hasError()) {
+            if (isUndefined)
+                *isUndefined = true;
+            return QV4::Encode::undefined();
+        }
     }
 
     return evaluate(isUndefined);
diff --git a/src/qml/qml/qqmljavascriptexpression.cpp b/src/qml/qml/qqmljavascriptexpression.cpp
index 74148e3ca4..3daa107b64 100644
--- a/src/qml/qml/qqmljavascriptexpression.cpp
+++ b/src/qml/qml/qqmljavascriptexpression.cpp
@@ -451,15 +451,11 @@ void QQmlJavaScriptExpression::createQmlBinding(QQmlContextData *ctxt, QObject *
     QV4::Script script(v4, qmlContext, code, filename, line);
     script.parse();
     if (v4->hasException) {
-        QQmlError error = v4->catchExceptionAsQmlError();
-        if (error.description().isEmpty())
-            error.setDescription(QLatin1String("Exception occurred during function evaluation"));
-        if (error.line() == -1)
-            error.setLine(line);
-        if (error.url().isEmpty())
-            error.setUrl(QUrl::fromLocalFile(filename));
-        error.setObject(qmlScope);
-        ep->warning(error);
+        QQmlDelayedError *error = delayedError();
+        error->catchJavaScriptException(v4);
+        error->setErrorObject(qmlScope);
+        if (!error->addError(ep))
+            ep->warning(error);
         return;
     }
     setupFunction(qmlContext, script.vmFunction);
diff --git a/tests/auto/qml/qqmlexpression/tst_qqmlexpression.cpp b/tests/auto/qml/qqmlexpression/tst_qqmlexpression.cpp
index e1ad1e8c5f..1decc04ad2 100644
--- a/tests/auto/qml/qqmlexpression/tst_qqmlexpression.cpp
+++ b/tests/auto/qml/qqmlexpression/tst_qqmlexpression.cpp
@@ -101,8 +101,12 @@ void tst_qqmlexpression::syntaxError()
 {
     QQmlEngine engine;
     QQmlExpression expression(engine.rootContext(), nullptr, "asd asd");
-    QVariant v = expression.evaluate();
+    bool isUndefined = false;
+    QVariant v = expression.evaluate(&isUndefined);
     QCOMPARE(v, QVariant());
+    QVERIFY(expression.hasError());
+    QCOMPARE(expression.error().description(), "SyntaxError: Expected token `;'");
+    QVERIFY(isUndefined);
 }
 
 void tst_qqmlexpression::exception()