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diff --git a/src/plugins/clangcodemodel/completionchunkstotextconverter.cpp b/src/plugins/clangcodemodel/completionchunkstotextconverter.cpp
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+++ b/src/plugins/clangcodemodel/completionchunkstotextconverter.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://www.qt.io/licensing.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "completionchunkstotextconverter.h"
+
+namespace ClangCodeModel {
+namespace Internal {
+
+void CompletionChunksToTextConverter::parseChunks(const QVector<CodeModelBackEnd::CodeCompletionChunk> &codeCompletionChunks)
+{
+    m_text.clear();
+
+    for (const auto &codeCompletionChunk : codeCompletionChunks)
+        parse(codeCompletionChunk);
+}
+
+const QString &CompletionChunksToTextConverter::text() const
+{
+    return m_text;
+}
+
+QString CompletionChunksToTextConverter::convert(const QVector<CodeModelBackEnd::CodeCompletionChunk> &codeCompletionChunks)
+{
+    CompletionChunksToTextConverter converter;
+
+    converter.parseChunks(codeCompletionChunks);
+
+    return converter.text();
+}
+
+void CompletionChunksToTextConverter::parse(const CodeModelBackEnd::CodeCompletionChunk &codeCompletionChunk)
+{
+    using CodeModelBackEnd::CodeCompletionChunk;
+
+    switch (codeCompletionChunk.kind()) {
+        case CodeCompletionChunk::ResultType: parseResultType(codeCompletionChunk.text()); break;
+        case CodeCompletionChunk::Optional: parseOptional(codeCompletionChunk); break;
+        default: parseText(codeCompletionChunk.text()); break;
+    }
+}
+
+void CompletionChunksToTextConverter::parseResultType(const Utf8String &resultTypeText)
+{
+    m_text += resultTypeText.toString() + QChar(QChar::Space);
+}
+
+void CompletionChunksToTextConverter::parseText(const Utf8String &text)
+{
+    m_text += text.toString();
+}
+
+void CompletionChunksToTextConverter::parseOptional(const CodeModelBackEnd::CodeCompletionChunk &optionalCodeCompletionChunk)
+{
+    m_text += QStringLiteral("<i>");
+
+    m_text += convert(optionalCodeCompletionChunk.optionalChunks());
+
+    m_text += QStringLiteral("</i>");
+}
+
+} // namespace Internal
+} // namespace ClangCodeModel
+