void GetEnumerator()

in src/vswhere/Program.cpp [133:164]

• 28 lines of code
• 7 McCabe index (conditional complexity)

void GetEnumerator(_In_ const CommandArgs& args, _In_ ISetupConfigurationPtr& query, _In_ IEnumSetupInstancesPtr& e)
{
    if (!query)
    {
        return;
    }

    // If all instances are requested, try to get the proper enumerator; otherwise, fall back to original enumerator.
    if (args.get_All())
    {
        ISetupConfiguration2Ptr query2;

        auto hr = query->QueryInterface(&query2);
        if (SUCCEEDED(hr))
        {
            hr = query2->EnumAllInstances(&e);
            if (FAILED(hr))
            {
                throw win32_error(hr);
            }
        }
    }

    if (!e)
    {
        auto hr = query->EnumInstances(&e);
        if (FAILED(hr))
        {
            throw win32_error(hr);
        }
    }
}