whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. Ed25519HDPublicKey recipient,
    2. Decimal? amount,
    3. Ed25519HDPublicKey? splToken,
    4. Iterable<Ed25519HDPublicKey>? reference,
    5. String? label,
    6. String? message,
    7. String? memo,
    )?
)

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( Ed25519HDPublicKey recipient,  Decimal? amount,  Ed25519HDPublicKey? splToken,  Iterable<Ed25519HDPublicKey>? reference,  String? label,  String? message,  String? memo)?  $default,) {final _that = this;
switch (_that) {
case _SolanaPayRequest() when $default != null:
return $default(_that.recipient,_that.amount,_that.splToken,_that.reference,_that.label,_that.message,_that.memo);case _:
  return null;

}
}