whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String chainId,
    2. String from,
    3. String to,
    4. String value,
    5. String input,
    6. BigInt gasLimit,
    7. BigInt nonce,
    )?
)

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( String chainId,  String from,  String to,  String value,  String input,  BigInt gasLimit,  BigInt nonce)?  $default,) {final _that = this;
switch (_that) {
case _TransactionCompat() when $default != null:
return $default(_that.chainId,_that.from,_that.to,_that.value,_that.input,_that.gasLimit,_that.nonce);case _:
  return null;

}
}