qmllint: Warn about missing singleton pragmas/qmldir entries

This change adds a warning if we encounter a component marked as a
singleton in a qmldir file which does not contain a pragma
Singleton entry and vice versa.

Note that the warning only gets triggered if the singleton is
actually used.

Fixes: QTBUG-98558
Change-Id: Id7c63f48ba49759c15dffcaee0270c7caab2eb7d
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>

1 files changed, 11 insertions, 0 deletions

diff --git a/tools/qmltc/main.cpp b/tools/qmltc/main.cpp
index 152a61fb24..c2002235cf 100644
--- a/tools/qmltc/main.cpp
+++ b/tools/qmltc/main.cpp
@@ -198,6 +198,17 @@ int main(int argc, char **argv)
     CodeGenerator generator(url, &logger, &document, &typeResolver);
     generator.generate(options);
 
+#    if 0 // TODO: Currently disabled due to QTBUG-100103, remove this #if guard once the issue has
+          // been addressed
+    QList<QQmlJS::DiagnosticMessage> warnings = importer.takeGlobalWarnings();
+
+    if (!warnings.isEmpty()) {
+        logger.logWarning(QStringLiteral("Type warnings occurred while compiling file:"),
+                          Log_Import);
+        logger.processMessages(warnings, QtWarningMsg, Log_Import);
+    }
+#    endif
+
     if (logger.hasWarnings() || logger.hasErrors())
         return EXIT_FAILURE;