QQmlCustomParser: Resolve import namespaces

Also, don't use plain QObject for testing registrations with extensions
and foreign types. This interacts with other tests.

Change-Id: I43df8a4e5b22def5a87f508130f1c7b4833ecfb6
Fixes: QTBUG-81970
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 25 insertions, 6 deletions

diff --git a/src/qml/qml/qqmlcustomparser.cpp b/src/qml/qml/qqmlcustomparser.cpp
index a5f34dafdf..ecd5020482 100644
--- a/src/qml/qml/qqmlcustomparser.cpp
+++ b/src/qml/qml/qqmlcustomparser.cpp
@@ -131,8 +131,13 @@ int QQmlCustomParser::evaluateEnum(const QByteArray& script, bool *ok) const
     // * <TypeName>.<EnumValue>
     // * <TypeName>.<ScopedEnumName>.<EnumValue>
 
-    int dot = script.indexOf('.');
-    if (dot == -1 || dot == script.length()-1)
+    auto nextDot = [&](int dot) {
+        const int nextDot = script.indexOf('.', dot + 1);
+        return (nextDot == script.length() - 1) ? -1 : nextDot;
+    };
+
+    int dot = nextDot(-1);
+    if (dot == -1)
         return -1;
 
     QString scope = QString::fromUtf8(script.left(dot));
@@ -143,18 +148,32 @@ int QQmlCustomParser::evaluateEnum(const QByteArray& script, bool *ok) const
         QQmlType type;
 
         if (imports.isT1()) {
-            imports.asT1()->resolveType(scope, &type, nullptr, nullptr, nullptr);
+            QQmlImportNamespace *ns = nullptr;
+            if (!imports.asT1()->resolveType(scope, &type, nullptr, nullptr, &ns))
+                return -1;
+            if (!type.isValid() && ns != nullptr) {
+                dot = nextDot(dot);
+                if (dot == -1 || !imports.asT1()->resolveType(QString::fromUtf8(script.left(dot)),
+                                                              &type, nullptr, nullptr, nullptr)) {
+                    return -1;
+                }
+            }
         } else {
             QQmlTypeNameCache::Result result = imports.asT2()->query(scope);
-            if (result.isValid())
+            if (result.isValid()) {
                 type = result.type;
+            } else if (result.importNamespace) {
+                dot = nextDot(dot);
+                if (dot != -1)
+                    type = imports.asT2()->query(QString::fromUtf8(script.left(dot))).type;
+            }
         }
 
         if (!type.isValid())
             return -1;
 
-        int dot2 = script.indexOf('.', dot+1);
-        const bool dot2Valid = dot2 != -1 && dot2 != script.length()-1;
+        const int dot2 = nextDot(dot);
+        const bool dot2Valid = (dot2 != -1);
         QByteArray enumValue = script.mid(dot2Valid ? dot2 + 1 : dot + 1);
         QByteArray scopedEnumName = (dot2Valid ? script.mid(dot + 1, dot2 - dot - 1) : QByteArray());
         if (!scopedEnumName.isEmpty())