Clang: Add clang refactoring

Change-Id: I2e3f36f810276da3f8dc7dcc587b06f8edb586d3
GPush-Base: d02f51b48fc752fddcdef6dcb32b3f7f6c0195a3
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/tools/clangrefactoringbackend/source/symbollocationfinderaction.cpp

@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 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 "symbollocationfinderaction.h"
+
+#include "sourcelocationsutils.h"
+#include "findlocationsofusrs.h"
+
+#include <clang/AST/ASTConsumer.h>
+#include <clang/AST/ASTContext.h>
+
+#include <memory>
+
+namespace ClangBackEnd {
+
+class FindingSymbolsASTConsumer : public clang::ASTConsumer
+{
+public:
+  FindingSymbolsASTConsumer(std::vector<USRName> &unifiedSymbolResolutions)
+      : unifiedSymbolResolutions(unifiedSymbolResolutions)
+  {
+  }
+
+  void HandleTranslationUnit(clang::ASTContext &context) override
+  {
+    std::vector<clang::SourceLocation> sourceLocations;
+
+
+    auto &&sourceLocationsOfUsr = takeLocationsOfUSRs(unifiedSymbolResolutions, context.getTranslationUnitDecl());
+    sourceLocations.insert(sourceLocations.end(),
+                           sourceLocationsOfUsr.begin(),
+                           sourceLocationsOfUsr.end());
+
+
+    std::sort(sourceLocations.begin(), sourceLocations.end());
+    auto newEnd = std::unique(sourceLocations.begin(), sourceLocations.end());
+    sourceLocations.erase(newEnd, sourceLocations.end());
+
+    updateSourceLocations(sourceLocations, context.getSourceManager());
+
+  }
+
+  void updateSourceLocations(const std::vector<clang::SourceLocation> &sourceLocations,
+                             const clang::SourceManager &sourceManager)
+  {
+      appendSourceLocationsToSourceLocationsContainer(*sourceLocationsContainer, sourceLocations, sourceManager);
+  }
+
+  void setSourceLocations(ClangBackEnd::SourceLocationsContainer *sourceLocations)
+  {
+      sourceLocationsContainer = sourceLocations;
+  }
+
+private:
+  ClangBackEnd::SourceLocationsContainer *sourceLocationsContainer = nullptr;
+  std::vector<USRName> &unifiedSymbolResolutions;
+};
+
+std::unique_ptr<clang::ASTConsumer> SymbolLocationFinderAction::newASTConsumer()
+{
+  auto consumer = std::unique_ptr<FindingSymbolsASTConsumer>(new FindingSymbolsASTConsumer(unifiedSymbolResolutions_));
+
+  consumer->setSourceLocations(&sourceLocations);
+
+  return std::move(consumer);
+}
+
+} // namespace ClangBackEnd