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diff --git a/src/qmlcompiler/typedescriptionreader_p.h b/src/qmlcompiler/typedescriptionreader_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TYPEDESCRIPTIONREADER_H
+#define TYPEDESCRIPTIONREADER_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 "scopetree_p.h"
+
+#include <QtQml/private/qqmljsastfwd_p.h>
+
+// for Q_DECLARE_TR_FUNCTIONS
+#include <QtCore/qcoreapplication.h>
+
+class TypeDescriptionReader
+{
+    Q_DECLARE_TR_FUNCTIONS(TypeDescriptionReader)
+public:
+    TypeDescriptionReader() = default;
+    explicit TypeDescriptionReader(QString fileName, QString data)
+        : m_fileName(std::move(fileName)), m_source(std::move(data)) {}
+
+    bool operator()(
+            QHash<QString, ScopeTree::Ptr> *objects,
+            QStringList *dependencies);
+
+    QString errorMessage() const { return m_errorMessage; }
+    QString warningMessage() const { return m_warningMessage; }
+
+private:
+    void readDocument(QQmlJS::AST::UiProgram *ast);
+    void readModule(QQmlJS::AST::UiObjectDefinition *ast);
+    void readDependencies(QQmlJS::AST::UiScriptBinding *ast);
+    void readComponent(QQmlJS::AST::UiObjectDefinition *ast);
+    void readSignalOrMethod(QQmlJS::AST::UiObjectDefinition *ast, bool isMethod,
+                            const ScopeTree::Ptr &scope);
+    void readProperty(QQmlJS::AST::UiObjectDefinition *ast, const ScopeTree::Ptr &scope);
+    void readEnum(QQmlJS::AST::UiObjectDefinition *ast, const ScopeTree::Ptr &scope);
+    void readParameter(QQmlJS::AST::UiObjectDefinition *ast, MetaMethod *metaMethod);
+
+    QString readStringBinding(QQmlJS::AST::UiScriptBinding *ast);
+    bool readBoolBinding(QQmlJS::AST::UiScriptBinding *ast);
+    double readNumericBinding(QQmlJS::AST::UiScriptBinding *ast);
+    QTypeRevision readNumericVersionBinding(QQmlJS::AST::UiScriptBinding *ast);
+    int readIntBinding(QQmlJS::AST::UiScriptBinding *ast);
+    void readExports(QQmlJS::AST::UiScriptBinding *ast, const ScopeTree::Ptr &scope);
+    void readMetaObjectRevisions(QQmlJS::AST::UiScriptBinding *ast, const ScopeTree::Ptr &scope);
+    void readEnumValues(QQmlJS::AST::UiScriptBinding *ast, MetaEnum *metaEnum);
+
+    void addError(const QQmlJS::SourceLocation &loc, const QString &message);
+    void addWarning(const QQmlJS::SourceLocation &loc, const QString &message);
+
+    QString m_fileName;
+    QString m_source;
+    QString m_errorMessage;
+    QString m_warningMessage;
+    QHash<QString, ScopeTree::Ptr> *m_objects = nullptr;
+    QStringList *m_dependencies = nullptr;
+};
+
+#endif // TYPEDESCRIPTIONREADER_H