when<TResult extends Object?> method

@optionalTypeArgs TResult when<TResult extends Object?>({ required TResult bytes(double value), required TResult kb(double value), required TResult mb(double value), required TResult gb(double value), required TResult tb(double value), })

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>({required TResult Function( double value)  bytes,required TResult Function( double value)  kb,required TResult Function( double value)  mb,required TResult Function( double value)  gb,required TResult Function( double value)  tb,}) {final _that = this;
switch (_that) {
case BytesModel():
return bytes(_that.value);case KbModel():
return kb(_that.value);case MbModel():
return mb(_that.value);case GbModel():
return gb(_that.value);case TbModel():
return tb(_that.value);}
}