public static boolean isBooleanFalseOrNull(Expression child) {
if (child != null) {
return child == BOOLEAN_EXPRESSIONS[child.getDeterminism().ordinal()]
|| child
== TYPED_NULL_EXPRESSIONS[
PBoolean.INSTANCE.ordinal()
+ PDataType.values().length * child.getDeterminism().ordinal()];
}
return false;
}
public static boolean isTrue(Expression child) {
if (child != null) {
return child
== BOOLEAN_EXPRESSIONS[Determinism.values().length + child.getDeterminism().ordinal()];
}
return false;
}
public static boolean isFalse(Expression child) {
if (child != null) {
return child == BOOLEAN_EXPRESSIONS[child.getDeterminism().ordinal()];
}
return false;
}