ClangRefactoring: Improve indexing

Fix some bugs in the indexing and use the new macro indexer from clang.

Change-Id: I2ba1b28097a8751aea942071851a60d164c6f371
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

1 files changed, 59 insertions, 0 deletions

diff --git a/src/tools/clangrefactoringbackend/source/filestatuspreprocessorcallbacks.cpp b/src/tools/clangrefactoringbackend/source/filestatuspreprocessorcallbacks.cpp
new file mode 100644
index 0000000000..28efe39f9b
--- /dev/null
+++ b/src/tools/clangrefactoringbackend/source/filestatuspreprocessorcallbacks.cpp
@@ -0,0 +1,59 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 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 "filestatuspreprocessorcallbacks.h"
+
+namespace ClangBackEnd {
+
+void FileStatusPreprocessorCallbacks::FileChanged(clang::SourceLocation sourceLocation,
+                                                  clang::PPCallbacks::FileChangeReason reason,
+                                                  clang::SrcMgr::CharacteristicKind,
+                                                  clang::FileID)
+{
+    if (reason == clang::PPCallbacks::EnterFile) {
+        const clang::FileEntry *fileEntry = m_sourceManager->getFileEntryForID(
+            m_sourceManager->getFileID(sourceLocation));
+        if (fileEntry)
+            addFileStatus(fileEntry);
+    }
+}
+
+void FileStatusPreprocessorCallbacks::addFileStatus(const clang::FileEntry *fileEntry)
+{
+    auto id = filePathId(fileEntry);
+
+    auto found = std::lower_bound(m_fileStatuses.begin(),
+                                  m_fileStatuses.end(),
+                                  id,
+                                  [](const auto &first, const auto &second) {
+                                      return first.filePathId < second;
+                                  });
+
+    if (found == m_fileStatuses.end() || found->filePathId != id) {
+        m_fileStatuses.emplace(found, id, fileEntry->getSize(), fileEntry->getModificationTime());
+    }
+}
+
+} // namespace ClangBackEnd