fix(blue-sdk-viem): avoid deployless EIP-5267 reverts

packages/blue-sdk-viem/contracts/GetToken.sol

@@ -34,9 +34,31 @@ contract GetToken {
 
         if (isWstEth) res.stEthPerWstEth = IWstEth(address(token)).stEthPerToken();
 
-        try IERC20Permit(address(token)).eip712Domain() returns (Eip5267Domain memory eip5267Domain) {
+        // Work around a Solidity via-IR decoding regression hit by valid EIP-5267 domains
+        // such as Treehouse ETH (tETH) on mainnet. Decoding the raw returndata locally avoids
+        // the deployless helper revert while preserving the same returned shape.
+        (bool success, bytes memory returnData) = address(token).staticcall(abi.encodeCall(IERC20Permit.eip712Domain, ()));
+        if (success) {
+            (
+                bytes1 fields,
+                string memory name,
+                string memory version,
+                uint256 chainId,
+                address verifyingContract,
+                bytes32 salt,
+                uint256[] memory extensions
+            ) = abi.decode(returnData, (bytes1, string, string, uint256, address, bytes32, uint256[]));
+
             res.hasEip5267Domain = true;
-            res.eip5267Domain = eip5267Domain;
-        } catch {}
+            res.eip5267Domain = Eip5267Domain({
+                fields: fields,
+                name: name,
+                version: version,
+                chainId: chainId,
+                verifyingContract: verifyingContract,
+                salt: salt,
+                extensions: extensions
+            });
+        }
     }
 }

packages/blue-sdk-viem/src/queries/GetToken.ts

@@ -81,4 +81,4 @@ export const abi = [
 ] as const;
 
 export const code =
-  "0x60808060405234601557610635908161001a8239f35b5f80fdfe6080806040526004361015610012575f80fd5b5f3560e01c63287861f914610025575f80fd5b346103fb5760403660031901126103fb576004356001600160a01b03811691908290036103fb576024359182151583036103fb57610100820182811067ffffffffffffffff8211176103ff576040525f825260208201905f8252604083016060815260608401905f825260808501906060825260a08601945f865260c08701946040516100b181610542565b5f815260606020820152606060408201525f60608201525f60808201525f60a0820152606060c0820152865260e08801985f8a526040516306fdde0360e01b81525f81600481865afa5f9181610502575b506104f6575b506040516395d89b4160e01b81525f81600481865afa5f91816104d2575b506104c6575b5060405163313ce56760e01b8152602081600481865afa5f9181610488575b5061047d575b50610413575b5f600491604051928380926342580cb760e11b82525afa5f918161029b575b50916101ce959493916101b39361028f575b506040519860208a525160208a0152511515604089015251610100606089015261012088019061051e565b91511515608087015251858203601f190160a087015261051e565b915160c08401525192601f198383030160e084015260ff60f81b845116825260c061021d61020b602087015160e0602087015260e086019061051e565b6040870151858203604087015261051e565b946060810151606085015260018060a01b03608082015116608085015260a081015160a085015201519160c08186039101526020808351958681520192015f945b8086106102775750508293505115156101008301520390f35b9092602080600192865181520194019501949061025e565b60018b5287525f610188565b9091503d805f833e6102ad818361055e565b8101906020818303126103fb5780519067ffffffffffffffff82116103fb57019060e0828203126103fb57604051916102e583610542565b80516001600160f81b0319811681036103fb578352602081015167ffffffffffffffff81116103fb578261031a918301610580565b6020840152604081015167ffffffffffffffff81116103fb578261033f918301610580565b60408401526060818101519084015260808101516001600160a01b03811681036103fb57608084015260a081015160a084015260c08101519067ffffffffffffffff82116103fb57019080601f830112156103fb5781519167ffffffffffffffff83116103ff578260051b90604051936103bc602084018661055e565b84526020808501928201019283116103fb57602001905b8282106103eb5750505060c0820152906101b3610176565b81518152602091820191016103d3565b5f80fd5b634e487b7160e01b5f52604160045260245ffd5b6040516301afd7c160e11b8152602081600481855afa908115610472575f9161043f575b508752610157565b90506020813d60201161046a575b8161045a6020938361055e565b810103126103fb57516004610437565b3d915061044d565b6040513d5f823e3d90fd5b60ff1689525f610151565b9091506020813d6020116104be575b816104a46020938361055e565b810103126103fb575160ff811681036103fb57905f61014b565b3d9150610497565b6001845284525f61012c565b6104ef9192503d805f833e6104e7818361055e565b8101906105d6565b905f610126565b6001875285525f610108565b6105179192503d805f833e6104e7818361055e565b905f610102565b805180835260209291819084018484015e5f828201840152601f01601f1916010190565b60e0810190811067ffffffffffffffff8211176103ff57604052565b90601f8019910116810190811067ffffffffffffffff8211176103ff57604052565b81601f820112156103fb5780519067ffffffffffffffff82116103ff57604051926105b5601f8401601f19166020018561055e565b828452602083830101116103fb57815f9260208093018386015e8301015290565b906020828203126103fb57815167ffffffffffffffff81116103fb576105fc9201610580565b9056fea2646970667358221220389a149f2e0bd6ff1dee73cba200ac22d6611d304a114c8d87d33392f9d891a264736f6c634300081b0033";
+  "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";

packages/blue-sdk-viem/test/Token.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect } from "vitest";
-import { test } from "./setup.js";
+import { test, testTreehouseEth } from "./setup.js";
 
 import {
   ChainId,
@@ -65,7 +65,9 @@ describe("augment/Token", () => {
     expect(value).toStrictEqual(expectedData);
   });
 
-  test("should fetch token data with eip5267Domain", async ({ client }) => {
+  test("should fetch token data with eip5267Domain using deployless reads", async ({
+    client,
+  }) => {
     const steakUSDC = "0xBEEF01735c132Ada46AA9aA4c54623cAA92A64CB";
     const expectedData = new Token({
       address: steakUSDC,
@@ -83,8 +85,38 @@ describe("augment/Token", () => {
       }),
     });
 
-    const value = await Token.fetch(expectedData.address, client);
+    const value = await Token.fetch(expectedData.address, client, {
+      deployless: "force",
+    });
 
     expect(value).toStrictEqual(expectedData);
   });
+
+  testTreehouseEth(
+    "should fetch Treehouse ETH data with eip5267Domain using deployless reads",
+    async ({ client }) => {
+      const treehouseEth = "0xD11c452fc99cF405034ee446803b6F6c1F6d5ED8";
+      const expectedData = new Token({
+        address: treehouseEth,
+        decimals: 18,
+        symbol: "tETH",
+        name: "Treehouse ETH",
+        eip5267Domain: new Eip5267Domain({
+          fields: "0x0f",
+          name: "Treehouse ETH",
+          version: "1",
+          chainId: 1n,
+          verifyingContract: treehouseEth,
+          salt: zeroHash,
+          extensions: [],
+        }),
+      });
+
+      const value = await Token.fetch(expectedData.address, client, {
+        deployless: "force",
+      });
+
+      expect(value).toStrictEqual(expectedData);
+    },
+  );
 });

packages/blue-sdk-viem/test/setup.ts

@@ -17,6 +17,14 @@ export const test2 = createViemTest(mainnet, {
   forkBlockNumber: 21_595_000,
 });
 
+/**
+ * This test will run on `mainnet` forked at block `24,671,815`.
+ */
+export const testTreehouseEth = createViemTest(mainnet, {
+  forkUrl: process.env.MAINNET_RPC_URL,
+  forkBlockNumber: 24_671_815,
+});
+
 /**
  * This test will run on `mainnet` forked at block `21,950,00`.
  */