operator []= method
Sets the value at the given index
in the list to value
.
The index
must be a valid index of this list,
which means that index
must be non-negative and
less than length.
Implementation
@override
void operator []=(int index, bool value) {
if (index < 0 || index >= length) {
throw RangeError(index);
}
final slot = index ~/ 30;
final position = slot * 30;
final mask = 1 << (index - position);
if (value) {
_list[slot] |= mask;
} else {
_list[slot] &= 0x3fffffff ^ mask;
}
}