maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  1. TResult evm(
    1. String id,
    2. String chainId,
    3. String method,
    4. List<EvmTransactionParams> params,
    )?,
  2. TResult solana(
    1. String id,
    2. String chainId,
    3. String method,
    4. SolanaTransactionParams params,
    )?,
  3. TResult tron(
    1. String id,
    2. String chainId,
    3. String method,
    4. TronTransactionParams params,
    )?,
  4. 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 id,  String chainId,  String method,  List<EvmTransactionParams> params)?  evm,TResult Function( String id,  String chainId,  String method,  SolanaTransactionParams params)?  solana,TResult Function( String id,  String chainId,  String method,  TronTransactionParams params)?  tron,required TResult orElse(),}) {final _that = this;
switch (_that) {
case EvmTransactionRpc() when evm != null:
return evm(_that.id,_that.chainId,_that.method,_that.params);case SolanaTransactionRpc() when solana != null:
return solana(_that.id,_that.chainId,_that.method,_that.params);case TronTransactionRpc() when tron != null:
return tron(_that.id,_that.chainId,_that.method,_that.params);case _:
  return orElse();

}
}