maybeWhen<TResult extends Object?> method

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult $default(String chainId, String from, String to, String value, String input, String gasLimit, String nonce, String maxFeePerGas, String maxPriorityFeePerGas,)?, { required TResult orElse(), })

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

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

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String chainId,  String from,  String to,  String value,  String input,  String gasLimit,  String nonce,  String maxFeePerGas,  String maxPriorityFeePerGas)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _FeeEstimatedTransactionCompat() when $default != null:
return $default(_that.chainId,_that.from,_that.to,_that.value,_that.input,_that.gasLimit,_that.nonce,_that.maxFeePerGas,_that.maxPriorityFeePerGas);case _:
  return orElse();

}
}