operator - method
Implementation
Assets operator -(Assets other) {
final values = Map<AssetName, BigInt>.from(assets);
for (final i in other.assets.entries) {
if (!values.containsKey(i.key)) continue;
final val = values[i.key]! - i.value;
if (val <= BigInt.zero) {
values.remove(i.key);
} else {
values[i.key] = val;
}
}
return Assets(values);
}