forked from qt-creator/qt-creator
048224bef1
It is quite easy because we track the include directives in the preprocessor callbacks. Change-Id: I2d7bd67b31f50c0d8d4a46c57e83dffa0c558dc7 Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
130 lines
4.2 KiB
C++
130 lines
4.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2018 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#pragma once
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#include "sourcelocationsutils.h"
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#include <filepathcachinginterface.h>
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#include <utils/linecolumn.h>
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#include <utils/optional.h>
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#include <clang/Basic/SourceLocation.h>
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#include <clang/Basic/SourceManager.h>
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#include <clang/Index/USRGeneration.h>
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#include <llvm/ADT/SmallVector.h>
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namespace ClangBackEnd {
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class SymbolsVisitorBase
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{
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public:
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SymbolsVisitorBase(FilePathCachingInterface &filePathCache,
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const clang::SourceManager &sourceManager)
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: m_filePathCache(filePathCache),
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m_sourceManager(sourceManager)
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{}
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FilePathId filePathId(clang::SourceLocation sourceLocation)
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{
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clang::FileID clangFileId = m_sourceManager.getFileID(sourceLocation);
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const clang::FileEntry *fileEntry = m_sourceManager.getFileEntryForID(clangFileId);
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return filePathId(fileEntry);
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}
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FilePathId filePathId(const clang::FileEntry *fileEntry)
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{
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if (fileEntry) {
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uint fileHash = fileEntry->getUID();
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auto found = m_filePathIndices.find(fileHash);
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if (found != m_filePathIndices.end())
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return found->second;
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auto filePath = fileEntry->getName();
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FilePathId filePathId = m_filePathCache.filePathId(FilePath::fromNativeFilePath(absolutePath(filePath)));
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m_filePathIndices.emplace(fileHash, filePathId);
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return filePathId;
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}
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return {};
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}
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Utils::LineColumn lineColum(clang::SourceLocation sourceLocation)
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{
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return {int(m_sourceManager.getSpellingLineNumber(sourceLocation)),
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int(m_sourceManager.getSpellingColumnNumber(sourceLocation))};
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}
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static Utils::optional<Utils::PathString> generateUSR(const clang::Decl *declaration)
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{
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llvm::SmallVector<char, 128> usr;
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Utils::optional<Utils::PathString> usrOptional;
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bool wasNotWorking = clang::index::generateUSRForDecl(declaration, usr);
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if (!wasNotWorking)
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usrOptional.emplace(usr.data(), usr.size());
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return usrOptional;
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}
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Utils::optional<Utils::PathString> generateUSR(clang::StringRef macroName,
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clang::SourceLocation sourceLocation)
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{
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llvm::SmallVector<char, 128> usr;
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Utils::optional<Utils::PathString> usrOptional;
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bool wasNotWorking = clang::index::generateUSRForMacro(macroName,
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sourceLocation,
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m_sourceManager,
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usr);
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if (!wasNotWorking)
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usrOptional.emplace(usr.data(), usr.size());
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return usrOptional;
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}
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static SymbolIndex toSymbolIndex(const void *pointer)
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{
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return SymbolIndex(reinterpret_cast<std::uintptr_t>(pointer));
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}
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protected:
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std::unordered_map<uint, FilePathId> m_filePathIndices;
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FilePathCachingInterface &m_filePathCache;
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const clang::SourceManager &m_sourceManager;
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};
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} // namespace ClangBackend
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