core: synthesized qmldir files and new qml scanning strategy

src/core/scan.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <qcontainerfwd.h>
+#include <qhash.h>
+#include <qloggingcategory.h>
+#include <qvector.h>
+
+Q_DECLARE_LOGGING_CATEGORY(logQmlScanner);
+
+// expects canonical paths
+class QmlScanner {
+public:
+	void scanDir(const QString& path);
+	// returns if the file has a singleton
+	bool scanQmlFile(const QString& path);
+
+	QVector<QString> scannedDirs;
+	QVector<QString> scannedFiles;
+	QHash<QString, QString> qmldirIntercepts;
+};