qt-creator/src/tools/clangrefactoringbackend/source/sourcelocationsutils.h

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** Copyright (C) 2016 The Qt Company Ltd.
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#pragma once

#include <sourcelocationscontainer.h>

#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif

#include <clang/Basic/SourceManager.h>
#include <llvm/Support/FileSystem.h>
#include <llvm/Support/FileUtilities.h>

#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif

namespace ClangBackEnd {

inline
llvm::SmallString<256> absolutePath(const char *path)
{
    llvm::SmallString<256> absolutePath(path);

    if (!llvm::sys::path::is_absolute(absolutePath))
        llvm::sys::fs::make_absolute(absolutePath);

    return absolutePath;
}

template <typename Container>
Utils::SmallString fromNativePath(Container container)
{
    Utils::SmallString path(container.data(), container.size());

#ifdef WIN32
    std::replace(path.begin(), path.end(), '\\', '/');
#endif

    return path;
}

inline
void appendSourceLocationsToSourceLocationsContainer(
        ClangBackEnd::SourceLocationsContainer &sourceLocationsContainer,
        const std::vector<clang::SourceLocation> &sourceLocations,
        const clang::SourceManager &sourceManager)
{
    sourceLocationsContainer.reserve(sourceLocations.size());

    for (const auto &sourceLocation : sourceLocations) {
        clang::FullSourceLoc fullSourceLocation(sourceLocation, sourceManager);
        auto fileId = fullSourceLocation.getFileID();
        auto fileEntry = sourceManager.getFileEntryForID(fileId);
        auto filePath = absolutePath(fileEntry->getName());
        auto fileName = llvm::sys::path::filename(filePath);
        llvm::sys::path::remove_filename(filePath);

        sourceLocationsContainer.insertFilePath(fileId.getHashValue(),
                                                fromNativePath(filePath),
                                                fromNativePath(fileName));
        sourceLocationsContainer.insertSourceLocation(fileId.getHashValue(),
                                                      fullSourceLocation.getSpellingLineNumber(),
                                                      fullSourceLocation.getSpellingColumnNumber());
    }
}

} // namespace ClangBackEnd