Clang: Add symbol indexer

Change-Id: I8ff879631ae022bc870431628be002903360369c
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/tools/clangrefactoringbackend/source/symbolindexer.cpp

@@ -0,0 +1,47 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://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 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.
+**
+****************************************************************************/
+
+#include "symbolindexer.h"
+
+namespace ClangBackEnd {
+
+SymbolIndexer::SymbolIndexer(SymbolsCollectorInterface &symbolsCollector, SymbolStorageInterface &symbolStorage)
+    : m_symbolsCollector(symbolsCollector),
+      m_symbolStorage(symbolStorage)
+{
+}
+
+void SymbolIndexer::updateProjectParts(V2::ProjectPartContainers &&projectParts)
+{
+    for (const V2::ProjectPartContainer &projectPart : projectParts)
+        m_symbolsCollector.addFiles(projectPart.sourcePaths(), projectPart.arguments());
+
+    m_symbolsCollector.collectSymbols();
+
+    m_symbolStorage.addSymbolsAndSourceLocations(m_symbolsCollector.symbols(),
+                                                 m_symbolsCollector.sourceLocations());
+}
+
+} // namespace ClangBackEnd