isValid property

bool get isValid

Return true iff this Union9 has a type in X1 .. X9.

Implementation

bool get isValid =>
    value is X1 ||
    value is X2 ||
    value is X3 ||
    value is X4 ||
    value is X5 ||
    value is X6 ||
    value is X7 ||
    value is X8 ||
    value is X9;