maybeMap<TResult extends Object?> method

@optionalTypeArgs TResult maybeMap<TResult extends Object?>({ TResult str(PyArgument_Str value)?, TResult int(PyArgument_Int value)?, TResult float(PyArgument_Float value)?, TResult bool(PyArgument_Bool value)?, TResult listStr(PyArgument_ListStr value)?, TResult listInt(PyArgument_ListInt value)?, required TResult orElse(), })

A variant of map that fallback to returning orElse.

It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs
TResult maybeMap<TResult extends Object?>({
  TResult Function(PyArgument_Str value)? str,
  TResult Function(PyArgument_Int value)? int,
  TResult Function(PyArgument_Float value)? float,
  TResult Function(PyArgument_Bool value)? bool,
  TResult Function(PyArgument_ListStr value)? listStr,
  TResult Function(PyArgument_ListInt value)? listInt,
  required TResult orElse(),
}) {
  final _that = this;
  switch (_that) {
    case PyArgument_Str() when str != null:
      return str(_that);
    case PyArgument_Int() when int != null:
      return int(_that);
    case PyArgument_Float() when float != null:
      return float(_that);
    case PyArgument_Bool() when bool != null:
      return bool(_that);
    case PyArgument_ListStr() when listStr != null:
      return listStr(_that);
    case PyArgument_ListInt() when listInt != null:
      return listInt(_that);
    case _:
      return orElse();
  }
}