Method GetLine

LuaParser/src/File/LuaSource.cpp:16–47

}

std::size_t LuaSource::GetLine(std::size_t offset) const {
    if (_lineOffsetVec.empty()) {
        return 0;
    }

    int maxLine = static_cast<int>(_lineOffsetVec.size()) - 1;
    int targetLine = maxLine;
    int upperLine = maxLine;
    int lowestLine = 0;

    while (true) {
        if (_lineOffsetVec[targetLine] > offset) {
            upperLine = targetLine;

            targetLine = (upperLine + lowestLine) / 2;

            if (targetLine == 0) {
                return targetLine;
            }
        } else {
            if (upperLine - targetLine <= 1) {
                return targetLine;
            }

            lowestLine = targetLine;

            targetLine = (upperLine + lowestLine) / 2;
        }
    }

    return 0;
}

std::size_t LuaSource::GetColumn(std::size_t offset) const {
    auto line = GetLine(offset);