1 files changed, 63 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4identifierhash_p.h b/src/qml/jsruntime/qv4identifierhash_p.h
new file mode 100644
index 0000000000..6c77a78f85
--- /dev/null
+++ b/src/qml/jsruntime/qv4identifierhash_p.h
@@ -0,0 +1,63 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#ifndef QV4IDENTIFIERHASH_P_H
+#define QV4IDENTIFIERHASH_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <qstring.h>
+#include <private/qv4global_p.h>
+#include <private/qv4propertykey_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace QV4 {
+
+struct IdentifierHashEntry;
+struct IdentifierHashData;
+struct Q_QML_EXPORT IdentifierHash
+{
+    IdentifierHash() = default;
+    IdentifierHash(ExecutionEngine *engine);
+    IdentifierHash(const IdentifierHash &other);
+    ~IdentifierHash();
+    IdentifierHash &operator=(const IdentifierHash &other);
+
+    bool isEmpty() const { return !d; }
+
+    int count() const;
+
+    void detach();
+
+    void add(const QString &str, int value);
+    void add(Heap::String *str, int value);
+
+    int value(const QString &str) const;
+    int value(String *str) const;
+    QString findId(int value) const;
+
+private:
+    inline IdentifierHashEntry *addEntry(PropertyKey i);
+    inline const IdentifierHashEntry *lookup(PropertyKey identifier) const;
+    inline const IdentifierHashEntry *lookup(const QString &str) const;
+    inline const IdentifierHashEntry *lookup(String *str) const;
+    inline const PropertyKey toIdentifier(const QString &str) const;
+    inline const PropertyKey toIdentifier(Heap::String *str) const;
+
+    IdentifierHashData *d = nullptr;
+};
+
+} // namespace QV4
+
+QT_END_NAMESPACE
+
+#endif // QV4_IDENTIFIERHASH_P_H