passes method

@override FutureOr<bool> passes(ValidationContext context)

Validates the value using the given context.

Returns true if valid, otherwise false.

Implementation

@override
FutureOr<bool> passes(ValidationContext context) {
  final value = context.value;
  if (value is bool) return true;
  if (value is num) return value == 0 || value == 1;
  if (value is String) {
    final lower = value.toLowerCase();
    return ['true', 'false', '1', '0'].contains(lower);
  }
  return false;
}