feat(merlin): Add support for Merlin EVM chain

android/app/src/androidTest/java/com/trustwallet/core/app/blockchains/CoinAddressDerivationTests.kt

@@ -47,7 +47,7 @@ class CoinAddressDerivationTests {
         FANTOM, CELO, CRONOSCHAIN, SMARTBITCOINCASH, KUCOINCOMMUNITYCHAIN, BOBA, METIS,
         AURORA, EVMOS, MOONRIVER, MOONBEAM, KAVAEVM, KLAYTN, METER, OKXCHAIN, POLYGONZKEVM, SCROLL,
         CONFLUXESPACE, ACALAEVM, OPBNB, NEON, BASE, LINEA, GREENFIELD, MANTLE, ZENEON, MANTAPACIFIC,
-        ZETAEVM,
+        ZETAEVM, MERLIN,
         -> assertEquals("0x8f348F300873Fd5DA36950B2aC75a26584584feE", address)
 
         RONIN -> assertEquals("ronin:8f348F300873Fd5DA36950B2aC75a26584584feE", address)

docs/registry.md

@@ -87,6 +87,7 @@ This list is generated from [./registry.json](../registry.json)
 | 2301    | Qtum             | QTUM   | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/qtum/info/logo.png" width="32" />         | <https://qtum.org>            |
 | 2718    | Nebulas          | NAS    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/nebulas/info/logo.png" width="32" />      | <https://nebulas.io>          |
 | 3030    | Hedera           | HBAR   | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/hedera/info/logo.png" width="32" />       | <https://hedera.com/>         |
+| 4200    | Merlin           | ETH    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/merlin/info/logo.png" width="32" />       | <https://merlinchain.io>      |
 | 5000    | Mantle           | MNT    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/mantle/info/logo.png" width="32" />       | <https://www.mantle.xyz>      |
 | 5600    | BNB Greenfield   | BNB    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/greenfield/info/logo.png" width="32" />   | <https://greenfield.bnbchain.org> |
 | 6060    | GoChain          | GO     | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/gochain/info/logo.png" width="32" />      | <https://gochain.io>          |

include/TrustWalletCore/TWCoinType.h

@@ -181,6 +181,7 @@ enum TWCoinType {
     TWCoinTypeNativeZetaChain = 10007000,
     TWCoinTypeZetaEVM = 20007000,
     TWCoinTypeDydx = 22000118,
+    TWCoinTypeMerlin = 4200,
     // end_of_tw_coin_type_marker_do_not_modify
 };
 

kotlin/wallet-core-kotlin/src/commonTest/kotlin/com/trustwallet/core/test/CoinAddressDerivationTests.kt

@@ -40,7 +40,7 @@ class CoinAddressDerivationTests {
         Fantom, Celo, CronosChain, SmartBitcoinCash, KuCoinCommunityChain, Boba, Metis,
         Aurora, Evmos, Moonriver, Moonbeam, KavaEvm, Klaytn, Meter, OKXChain, PolygonzkEVM, Scroll,
         ConfluxeSpace, AcalaEVM, OpBNB, Neon, Base, Linea, Greenfield, Mantle, ZenEON, MantaPacific,
-        ZetaEVM,
+        ZetaEVM, Merlin,
         -> "0x8f348F300873Fd5DA36950B2aC75a26584584feE"
 
         Ronin -> "ronin:8f348F300873Fd5DA36950B2aC75a26584584feE"

registry.json

@@ -4628,5 +4628,35 @@
       "rpc": "https://pacific-rpc.manta.network/http",
       "documentation": "https://docs.manta.network/docs/Introduction"
     }
+  },
+  {
+    "id": "merlin",
+    "name": "Merlin",
+    "coinId": 4200,
+    "symbol": "ETH",
+    "decimals": 18,
+    "blockchain": "Ethereum",
+    "derivation": [
+      {
+        "path": "m/44'/60'/0'/0/0"
+      }
+    ],
+    "curve": "secp256k1",
+    "publicKeyType": "secp256k1Extended",
+    "chainId": "4200",
+    "addressHasher": "keccak256",
+    "explorer": {
+      "url": "https://scan.merlinchain.io",
+      "txPath": "/tx/",
+      "accountPath": "/address/",
+      "sampleTx": "0xca6f2891959b669237738dd0bc2c1051d966778c9de90b94165032ce58364212",
+      "sampleAccount": "0xf7e017b3f61bD3410A3b03D7DAD7699FD6780584"
+    },
+    "info": {
+      "url": "https://merlinchain.io",
+      "source": "https://merlinchain.io",
+      "rpc": "https://rpc.merlinchain.io",
+      "documentation": "https://docs.merlinchain.io/merlin-docs"
+    }
   }
 ]

rust/tw_any_coin/tests/coin_address_derivation_test.rs

@@ -86,6 +86,7 @@ fn test_coin_address_derivation() {
             | CoinType::ZenEON
             | CoinType::MantaPacific
             | CoinType::ZetaEVM
+            | CoinType::Merlin
             // end_of_evm_address_derivation_tests_marker_do_not_modify
                 => "0xAc1ec44E4f0ca7D172B7803f6836De87Fb72b309",
             CoinType::Bitcoin

swift/Tests/CoinAddressDerivationTests.swift

@@ -114,7 +114,8 @@ class CoinAddressDerivationTests: XCTestCase {
                      .mantle,
                      .zenEON,
                      .mantaPacific,
-                     .zetaEVM:
+                     .zetaEVM,
+                     .merlin:
                     let expectedResult = "0x8f348F300873Fd5DA36950B2aC75a26584584feE"
                     assertCoinDerivation(coin, expectedResult, derivedAddress, address)
                 case .ronin:

tests/chains/Merlin/TWCoinTypeTests.cpp

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// Copyright © 2017 Trust Wallet.
+
+#include "TestUtilities.h"
+#include <TrustWalletCore/TWCoinTypeConfiguration.h>
+#include <gtest/gtest.h>
+
+TEST(TWMerlinCoinType, TWCoinType) {
+    const auto coin = TWCoinTypeMerlin;
+    const auto symbol = WRAPS(TWCoinTypeConfigurationGetSymbol(coin));
+    const auto id = WRAPS(TWCoinTypeConfigurationGetID(coin));
+    const auto name = WRAPS(TWCoinTypeConfigurationGetName(coin));
+    const auto txId = WRAPS(TWStringCreateWithUTF8Bytes("0xca6f2891959b669237738dd0bc2c1051d966778c9de90b94165032ce58364212"));
+    const auto txUrl = WRAPS(TWCoinTypeConfigurationGetTransactionURL(coin, txId.get()));
+    const auto accId = WRAPS(TWStringCreateWithUTF8Bytes("0xf7e017b3f61bD3410A3b03D7DAD7699FD6780584"));
+    const auto accUrl = WRAPS(TWCoinTypeConfigurationGetAccountURL(coin, accId.get()));
+
+    assertStringsEqual(id, "merlin");
+    assertStringsEqual(name, "Merlin");
+    assertStringsEqual(symbol, "ETH");
+    ASSERT_EQ(TWCoinTypeConfigurationGetDecimals(coin), 18);
+    ASSERT_EQ(TWCoinTypeBlockchain(coin), TWBlockchainEthereum);
+    ASSERT_EQ(TWCoinTypeP2pkhPrefix(coin), 0);
+    ASSERT_EQ(TWCoinTypeP2shPrefix(coin), 0);
+    ASSERT_EQ(TWCoinTypeStaticPrefix(coin), 0);
+    assertStringsEqual(txUrl, "https://scan.merlinchain.io/tx/0xca6f2891959b669237738dd0bc2c1051d966778c9de90b94165032ce58364212");
+    assertStringsEqual(accUrl, "https://scan.merlinchain.io/address/0xf7e017b3f61bD3410A3b03D7DAD7699FD6780584");
+}

tests/common/CoinAddressDerivationTests.cpp

@@ -84,6 +84,7 @@ TEST(Coin, DeriveAddress) {
         case TWCoinTypeZenEON:
         case TWCoinTypeMantaPacific:
         case TWCoinTypeZetaEVM:
+        case TWCoinTypeMerlin:
             // end_of_evm_address_derivation_tests_marker_do_not_modify
             EXPECT_EQ(address, "0x9d8A62f656a8d1615C1294fd71e9CFb3E4855A4F");
             break;