feat: add 7702 compatible semi modular account #288
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Summary by OctaneNew Contracts
Updated ContractsNo contracts were updated in this PR. 🔗 Commit Hash: 29f57fe |
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Contract sizes: | Contract | Runtime Size (B) | Initcode Size (B) | Runtime Margin (B) | Initcode Margin (B) |
|-------------------------------|------------------|-------------------|--------------------|---------------------|
| AccountFactory | 4,814 | 5,239 | 19,762 | 43,913 |
| AllowlistModule | 9,903 | 9,930 | 14,673 | 39,222 |
| ExecutionInstallDelegate | 5,714 | 5,760 | 18,862 | 43,392 |
| ModularAccount | 21,973 | 28,676 | 2,603 | 20,476 |
| NativeFunctionDelegate | 434 | 461 | 24,142 | 48,691 |
| NativeTokenLimitModule | 4,449 | 4,476 | 20,127 | 44,676 |
| PaymasterGuardModule | 1,845 | 1,872 | 22,731 | 47,280 |
+| SemiModularAccount7702 | 23,026 | 29,729 | 1,550 | 19,423 |
| SemiModularAccountBytecode | 23,275 | 29,978 | 1,301 | 19,174 |
| SemiModularAccountStorageOnly | 23,769 | 30,472 | 807 | 18,680 |
| SingleSignerValidationModule | 3,646 | 3,673 | 20,930 | 45,479 |
| TimeRangeModule | 2,000 | 2,027 | 22,576 | 47,125 |
| WebAuthnValidationModule | 7,854 | 7,881 | 16,722 | 41,271 |Code coverage:
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OverviewOctane AI analysis has finished. No vulnerabilities were found. Cheers! 🎉🎉🎉 🔗 Commit Hash: 29f57fe |
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| /// @notice An implementation of a semi-modular account which reads the signer as the address(this). | ||
| /// @dev Inherits SemiModularAccountBase. This account can be used as the delegate contract of an EOA with | ||
| /// EIP-7702, where address(this) (aka the EOA address) is the default fallback signer. | ||
| contract SemiModularAccount7702 is SemiModularAccountBase { |
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[Discussed offline, but documenting here for alignment]
Only callout here is that ModularAccountBase has the upgradeToAndCall function which doesn't make sense for the 7702 flow. If we want to tidy things up a bit and reduce an external function, we can probably pull this function out into another base class and exclude it here. Is this worth it? cc @alchemyplatform/contractoors .
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Motivation
Support EIP-7702 EOA delegation with semi modular account.
Solution
Default fallback signer to
address(this)aka EOA address for 7702 EOA account.