use a switch to exhaustively ensure we didn't forget to include a newly added Coin value

lib/pages/wallets_view/sub_widgets/wallet_list_item.dart

@@ -63,8 +63,8 @@ class WalletListItem extends ConsumerWidget {
           // Check if Tor is enabled...
           if (ref.read(prefsChangeNotifierProvider).useTor) {
             // ... and if the coin supports Tor.
-            final cryptocurrency = SupportedCoins.coins[coin];
-            if (cryptocurrency != null && !cryptocurrency!.torSupport) {
+            final cryptocurrency = SupportedCoins.getCryptoCurrencyFor(coin);
+            if (!cryptocurrency.torSupport) {
               // If not, show a Tor warning dialog.
               final shouldContinue = await showDialog<bool>(
                     context: context,

lib/pages_desktop_specific/my_stack_view/wallet_summary_table.dart

@@ -29,7 +29,7 @@ import 'package:stackwallet/widgets/dialogs/tor_warning_dialog.dart';
 import 'package:stackwallet/widgets/rounded_white_container.dart';
 
 class WalletSummaryTable extends ConsumerStatefulWidget {
-  const WalletSummaryTable({Key? key}) : super(key: key);
+  const WalletSummaryTable({super.key});
 
   @override
   ConsumerState<WalletSummaryTable> createState() => _WalletTableState();
@@ -70,10 +70,10 @@ class _WalletTableState extends ConsumerState<WalletSummaryTable> {
 
 class DesktopWalletSummaryRow extends ConsumerStatefulWidget {
   const DesktopWalletSummaryRow({
-    Key? key,
+    super.key,
     required this.coin,
     required this.walletCount,
-  }) : super(key: key);
+  });
 
   final Coin coin;
   final int walletCount;
@@ -91,8 +91,8 @@ class _DesktopWalletSummaryRowState
     // Check if Tor is enabled...
     if (ref.read(prefsChangeNotifierProvider).useTor) {
       // ... and if the coin supports Tor.
-      final cryptocurrency = SupportedCoins.coins[widget.coin];
-      if (cryptocurrency != null && !cryptocurrency!.torSupport) {
+      final cryptocurrency = SupportedCoins.getCryptoCurrencyFor(widget.coin);
+      if (!cryptocurrency.torSupport) {
         // If not, show a Tor warning dialog.
         final shouldContinue = await showDialog<bool>(
               context: context,

lib/supported_coins.dart

@@ -13,66 +13,73 @@ import 'package:stackwallet/wallets/crypto_currency/coins/monero.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/namecoin.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/nano.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/particl.dart';
+import 'package:stackwallet/wallets/crypto_currency/coins/solana.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/stellar.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/tezos.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/wownero.dart';
 import 'package:stackwallet/wallets/crypto_currency/crypto_currency.dart';
 
-/// The supported coins.
+/// The supported coins. Eventually move away from the Coin enum
 class SupportedCoins {
-  /// A List of our supported coins.
-  static final List<CryptoCurrency> cryptocurrencies = [
-    // Mainnet coins.
-    Bitcoin(CryptoCurrencyNetwork.main),
-    Monero(CryptoCurrencyNetwork.main),
-    Banano(CryptoCurrencyNetwork.main),
-    Bitcoincash(CryptoCurrencyNetwork.main),
-    BitcoinFrost(CryptoCurrencyNetwork.main),
-    Dogecoin(CryptoCurrencyNetwork.main),
-    Ecash(CryptoCurrencyNetwork.main),
-    Epiccash(CryptoCurrencyNetwork.main),
-    Ethereum(CryptoCurrencyNetwork.main),
-    Firo(CryptoCurrencyNetwork.main),
-    Litecoin(CryptoCurrencyNetwork.main),
-    Namecoin(CryptoCurrencyNetwork.main),
-    Nano(CryptoCurrencyNetwork.main),
-    Particl(CryptoCurrencyNetwork.main),
-    Stellar(CryptoCurrencyNetwork.main),
-    Tezos(CryptoCurrencyNetwork.main),
-    Wownero(CryptoCurrencyNetwork.main),
+  /// A List of our supported coins. Piggy back on [Coin] for now
+  static final List<CryptoCurrency> cryptocurrencies =
+      Coin.values.map((e) => getCryptoCurrencyFor(e)).toList(growable: false);
 
-    /// Testnet coins.
-    Bitcoin(CryptoCurrencyNetwork.test),
-    Banano(CryptoCurrencyNetwork.test),
-    Bitcoincash(CryptoCurrencyNetwork.test),
-    BitcoinFrost(CryptoCurrencyNetwork.test),
-    Dogecoin(CryptoCurrencyNetwork.test),
-    Stellar(CryptoCurrencyNetwork.test),
-    Firo(CryptoCurrencyNetwork.test),
-    Litecoin(CryptoCurrencyNetwork.test),
-    Stellar(CryptoCurrencyNetwork.test),
-  ];
-
-  /// A Map linking a CryptoCurrency with its associated Coin.
+  /// A getter function linking a [CryptoCurrency] with its associated [Coin].
   ///
   /// Temporary: Remove when the Coin enum is removed.
-  static final Map<Coin, CryptoCurrency> coins = {
-    Coin.bitcoin: Bitcoin(CryptoCurrencyNetwork.main),
-    Coin.monero: Monero(CryptoCurrencyNetwork.main),
-    Coin.banano: Banano(CryptoCurrencyNetwork.main),
-    Coin.bitcoincash: Bitcoincash(CryptoCurrencyNetwork.main),
-    Coin.bitcoinFrost: BitcoinFrost(CryptoCurrencyNetwork.main),
-    Coin.dogecoin: Dogecoin(CryptoCurrencyNetwork.main),
-    Coin.eCash: Ecash(CryptoCurrencyNetwork.main),
-    Coin.epicCash: Epiccash(CryptoCurrencyNetwork.main),
-    Coin.ethereum: Ethereum(CryptoCurrencyNetwork.main),
-    Coin.firo: Firo(CryptoCurrencyNetwork.main),
-    Coin.litecoin: Litecoin(CryptoCurrencyNetwork.main),
-    Coin.namecoin: Namecoin(CryptoCurrencyNetwork.main),
-    Coin.nano: Nano(CryptoCurrencyNetwork.main),
-    Coin.particl: Particl(CryptoCurrencyNetwork.main),
-    Coin.stellar: Stellar(CryptoCurrencyNetwork.main),
-    Coin.tezos: Tezos(CryptoCurrencyNetwork.main),
-    Coin.wownero: Wownero(CryptoCurrencyNetwork.main),
-  };
+  static CryptoCurrency getCryptoCurrencyFor(Coin coin) {
+    switch (coin) {
+      case Coin.bitcoin:
+        return Bitcoin(CryptoCurrencyNetwork.main);
+      case Coin.bitcoinFrost:
+        return BitcoinFrost(CryptoCurrencyNetwork.main);
+      case Coin.litecoin:
+        return Litecoin(CryptoCurrencyNetwork.main);
+      case Coin.bitcoincash:
+        return Bitcoincash(CryptoCurrencyNetwork.main);
+      case Coin.dogecoin:
+        return Dogecoin(CryptoCurrencyNetwork.main);
+      case Coin.epicCash:
+        return Epiccash(CryptoCurrencyNetwork.main);
+      case Coin.eCash:
+        return Ecash(CryptoCurrencyNetwork.main);
+      case Coin.ethereum:
+        return Ethereum(CryptoCurrencyNetwork.main);
+      case Coin.firo:
+        return Firo(CryptoCurrencyNetwork.main);
+      case Coin.monero:
+        return Monero(CryptoCurrencyNetwork.main);
+      case Coin.particl:
+        return Particl(CryptoCurrencyNetwork.main);
+      case Coin.solana:
+        return Solana(CryptoCurrencyNetwork.main);
+      case Coin.stellar:
+        return Stellar(CryptoCurrencyNetwork.main);
+      case Coin.tezos:
+        return Tezos(CryptoCurrencyNetwork.main);
+      case Coin.wownero:
+        return Wownero(CryptoCurrencyNetwork.main);
+      case Coin.namecoin:
+        return Namecoin(CryptoCurrencyNetwork.main);
+      case Coin.nano:
+        return Nano(CryptoCurrencyNetwork.main);
+      case Coin.banano:
+        return Banano(CryptoCurrencyNetwork.main);
+      case Coin.bitcoinTestNet:
+        return Bitcoin(CryptoCurrencyNetwork.test);
+      case Coin.bitcoinFrostTestNet:
+        return BitcoinFrost(CryptoCurrencyNetwork.test);
+      case Coin.litecoinTestNet:
+        return Litecoin(CryptoCurrencyNetwork.test);
+      case Coin.bitcoincashTestnet:
+        return Bitcoincash(CryptoCurrencyNetwork.test);
+      case Coin.firoTestNet:
+        return Firo(CryptoCurrencyNetwork.test);
+      case Coin.dogecoinTestNet:
+        return Dogecoin(CryptoCurrencyNetwork.test);
+      case Coin.stellarTestnet:
+        return Stellar(CryptoCurrencyNetwork.test);
+    }
+  }
 }