fix: resolve eip712Domain on fresh 7702 EOAs in signQuote#203
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fix: resolve eip712Domain on fresh 7702 EOAs in signQuote#203fichiokaku wants to merge 1 commit into
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In EIP-7702 mode the account address is the EOA itself, but the SDK still passes factoryAddress + factoryData to viem's getEip712Domain. When the EOA has no code yet, viem falls back to a deployless call that asserts the factory deploys at the expected address — which is impossible because the factory deploys at a CREATE2 address by definition different from the EOA — and reverts with CounterfactualDeploymentFailedError. This broke signQuote on V2_2_1+ for any 7702 user that called signQuote before delegation landed. Detect the 7702 case (account address == signer address) and read the EIP-712 domain directly from the implementation contract, substituting chainId and verifyingContract with the values the EOA will return post-delegation. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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vr16x
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May 1, 2026
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The changes look good, but it would be great if you could generate a test case for this.
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In EIP-7702 mode the account address is the EOA itself, but the SDK still passes factoryAddress + factoryData to viem's getEip712Domain. When the EOA has no code yet, viem falls back to a deployless call that asserts the factory deploys at the expected address — which is impossible because the factory deploys at a CREATE2 address by definition different from the EOA — and reverts with CounterfactualDeploymentFailedError. This broke signQuote on V2_2_1+ for any 7702 user that called signQuote before delegation landed.
Detect the 7702 case (account address == signer address) and read the EIP-712 domain directly from the implementation contract, substituting chainId and verifyingContract with the values the EOA will return post-delegation.
PR-Codex overview
This PR enhances the
getEip712Domainfunction to handle EIP-7702 mode correctly. It ensures that the EIP-712 domain is fetched directly from the implementation contract when the smart-account address is the EOA, preventing issues with address mismatches during delegation.Detailed summary
signer.address._eip712Domainassignment to include the correctchainIdandverifyingContractvalues after delegation.