QmlCompiler: Retain anonymous types in qmlnames

Prefix them with $anonymous$ so that we cannot accidentally find them.
If we don't keep them, they may be deleted when their last strong
reference goes out of scope.

Change-Id: I24ca795f9d9c4ecea074019db41a3ca0618f8e81
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/qmlcompiler/qqmljsimporter.cpp b/src/qmlcompiler/qqmljsimporter.cpp
index 5b693f5c72..823c0e6f2c 100644
--- a/src/qmlcompiler/qqmljsimporter.cpp
+++ b/src/qmlcompiler/qqmljsimporter.cpp
@@ -209,6 +209,8 @@ void QQmlJSImporter::processImport(
         QQmlJSImporter::AvailableTypes *types,
         const QString &prefix)
 {
+    const QString anonPrefix = QStringLiteral("$anonymous$");
+
     if (!prefix.isEmpty())
         types->qmlNames.insert(prefix, {}); // Empty type means "this is the prefix"
 
@@ -221,6 +223,11 @@ void QQmlJSImporter::processImport(
         types->cppNames.insert(val->internalName(), val);
 
         const auto exports = val->exports();
+        if (exports.isEmpty()) {
+            types->qmlNames.insert(
+                        prefixedName(prefix, prefixedName(anonPrefix, val->internalName())), val);
+        }
+
         for (const auto &valExport : exports)
             types->qmlNames.insert(prefixedName(prefix, valExport.type()), val);
     }