Add experimental clang code-model plug-in.

Previously known as the wip/clang branch.

Contributors (in alphabetical order):
- Christian Kamm <christian.d.kamm@nokia.com>
- Erik Verbruggen <erik.verbruggen@digia.com>
- Leandro Melo <leandro.melo@nokia.com>
- Peter Kuemmel <syntheticpp@gmx.net>
- Sergey Shambir <sergey.shambir.auto@gmail.com>

Change-Id: I4c3ff600a19b6732641c1d5ef28236bf2cc17737
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/clangcodemodel/sourcemarker.h

@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: 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.
+**
+****************************************************************************/
+
+#ifndef CLANG_SOURCEMARKER_H
+#define CLANG_SOURCEMARKER_H
+
+#include "clang_global.h"
+#include "sourcelocation.h"
+
+namespace ClangCodeModel {
+
+class CLANG_EXPORT SourceMarker
+{
+public: // TODO: remove this, it's about the same as the TextEditor::SemanticHighlighter::Result
+    enum Kind {
+        Unknown = 0,
+        Type = 1,
+        Local,
+        Field,
+        Enumeration,
+        VirtualMethod,
+        Label,
+        Macro,
+        Function,
+        PseudoKeyword,
+        ObjCString,
+
+        ObjectiveCMessage = VirtualMethod
+    };
+
+    SourceMarker();
+    SourceMarker(const SourceLocation &location,
+                 unsigned length,
+                 Kind kind);
+
+    bool isValid() const
+    { return m_loc.line() != 0; }
+
+    bool isInvalid() const
+    { return m_loc.line() == 0; }
+
+    const SourceLocation &location() const
+    { return m_loc; }
+
+    unsigned length() const
+    { return m_length; }
+
+    Kind kind() const
+    { return m_kind; }
+
+    bool lessThan(const SourceMarker &other) const
+    {
+        if (m_loc.line() != other.m_loc.line())
+            return m_loc.line() < other.m_loc.line();
+        if (m_loc.column() != other.m_loc.column())
+            return m_loc.column() < other.m_loc.column();
+        return m_length < other.m_length;
+    }
+
+private:
+    SourceLocation m_loc;
+    unsigned m_length;
+    Kind m_kind;
+};
+
+CLANG_EXPORT inline bool operator<(const SourceMarker &one, const SourceMarker &two)
+{ return one.lessThan(two); }
+
+} // namespace Clang
+
+#endif // CLANG_SOURCEMARKER_H