let
    type rec = { text: string, value: int }
    var test: rec := nil
in
    if (test = nil) then
        1
    else
        0;

    test := rec { text = "key", value = 0 };

    if ( test.value = 1 ) then
        -1
    else
        100;

    test := nil;

    if (test = nil) then
        1
    else
        0
end