Function parse

plugins/clang/tests/test_clangutils.cpp:59–76

using TranslationUnit = std::unique_ptr<CXTranslationUnitImpl, DisposeTranslationUnit>;

TranslationUnit parse(const QByteArray& code, QString* fileName = nullptr)
{
    QTemporaryFile tempFile;
    QVERIFY_RETURN(tempFile.open(), {});
    tempFile.write(code);
    tempFile.flush();

    if (fileName) {
        *fileName = tempFile.fileName();
    }

    std::unique_ptr<void, void(*)(CXIndex)> index(clang_createIndex(1, 1), clang_disposeIndex);
    const QList<const char*> args = {"-std=c++20", "-xc++", "-Wall", "-nostdinc", "-nostdinc++"};
    auto unit = TranslationUnit(clang_parseTranslationUnit(index.get(), qPrintable(tempFile.fileName()), args.data(),
                                                           args.size(), nullptr, 0, CXTranslationUnit_None));
    QVERIFY_RETURN(unit, {});
    return unit;
}

TranslationUnit runVisitor(const QByteArray& code, CXCursorVisitor visitor, CXClientData data)
{