maybeMap<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeMap<TResult extends Object?>({
  1. TResult account(
    1. TokenAccountData value
    )?,
  2. TResult mint(
    1. MintAccountData value
    )?,
  3. TResult unknown(
    1. UnknownAccountData value
    )?,
  4. 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( TokenAccountData value)?  account,TResult Function( MintAccountData value)?  mint,TResult Function( UnknownAccountData value)?  unknown,required TResult orElse(),}){
final _that = this;
switch (_that) {
case TokenAccountData() when account != null:
return account(_that);case MintAccountData() when mint != null:
return mint(_that);case UnknownAccountData() when unknown != null:
return unknown(_that);case _:
  return orElse();

}
}