Clang: Add SymbolQuery

Change-Id: I5cb81dffd6f1fda6bdcba0eedaf79f0bc91348b5
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/clangrefactoring/querysqlitestatementfactory.h

@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** 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.
+**
+****************************************************************************/
+
+#pragma once
+
+namespace ClangRefactoring {
+
+template<typename Database,
+         typename ReadStatement>
+class QuerySqliteStatementFactory
+{
+public:
+    using DatabaseType = Database;
+    using ReadStatementType = ReadStatement;
+
+    QuerySqliteStatementFactory(Database &database)
+        : database(database)
+    {}
+    Database &database;
+    ReadStatement selectLocationsForSymbolLocation{
+        "SELECT sourceId, line, column FROM locations WHERE symbolId = "
+        "  (SELECT symbolId FROM locations WHERE sourceId="
+        "    (SELECT sourceId FROM sources WHERE sourcePath =?)"
+        "   AND line=? AND column=?) "
+        "ORDER BY sourceId, line, column",
+        database}; // alternatively SELECT l2.symbolid, l2.sourceId, l2.line, l2.column FROM locations AS l2, sources, locations AS l1 ON sources.sourceId = l1.sourceId AND l2.symbolId=l1.symbolId WHERE sourcePath = ? AND l1.line=? AND l1.column=? ORDER BY l2.sourceId, l2.line, l2.column
+    ReadStatement selectSourcePathForId{
+        "SELECT sourceId, sourcePath FROM sources WHERE sourceId = ?",
+        database};
+};
+
+} // namespace ClangRefactoring