verifyUsage method
Verifies the usage of this validator in field
.
Implementation
@override
void verifyUsage(DogStructureField field) {
final arg = field.serial.typeArgument;
if (arg != int && arg != double) {
throw DogException(
"Field '${field.name}' must be a int|double/-List/-Iterable to use @Range().");
}
}