Clang: Add clang refactoring

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

src/tools/clangrefactoringbackend/source/refactoringcompilationdatabase.cpp

@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** 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 "refactoringcompilationdatabase.h"
+
+#include "clangrefactoringbackend_global.h"
+
+namespace ClangBackEnd {
+
+RefactoringCompilationDatabase::RefactoringCompilationDatabase()
+{
+}
+
+namespace {
+
+std::string concatFilePath(const clang::tooling::CompileCommand &compileCommand)
+{
+    return compileCommand.Directory + nativeSeperator + compileCommand.Filename;
+}
+}
+
+std::vector<clang::tooling::CompileCommand>
+RefactoringCompilationDatabase::getCompileCommands(llvm::StringRef filePath) const
+{
+    std::vector<clang::tooling::CompileCommand> foundCommands;
+
+    std::copy_if(compileCommands.begin(),
+                 compileCommands.end(),
+                 std::back_inserter(foundCommands),
+                 [&] (const clang::tooling::CompileCommand &compileCommand) {
+        return filePath == concatFilePath(compileCommand);
+    });
+
+    return foundCommands;
+}
+
+std::vector<std::string>
+RefactoringCompilationDatabase::getAllFiles() const
+{
+    std::vector<std::string> filePaths;
+    filePaths.reserve(compileCommands.size());
+
+    std::transform(compileCommands.begin(),
+                   compileCommands.end(),
+                   std::back_inserter(filePaths),
+                   [&] (const clang::tooling::CompileCommand &compileCommand) {
+          return concatFilePath(compileCommand);
+      });
+
+    return filePaths;
+}
+
+std::vector<clang::tooling::CompileCommand>
+RefactoringCompilationDatabase::getAllCompileCommands() const
+{
+    return compileCommands;
+}
+
+void RefactoringCompilationDatabase::addFile(const std::string &directory,
+                                             const std::string &fileName,
+                                             const std::vector<std::string> &commandLine)
+{
+    compileCommands.emplace_back(directory, fileName, commandLine);
+}
+
+} // namespace ClangBackEnd