Add preliminary support for updating emode category parameters with the config engine #88
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…he config engine.
| @@ -92,6 +94,12 @@ abstract contract AaveV3PayloadBase { | |||
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| if (eModeCategories.length != 0) { | |||
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As setEModeCategory() on PoolConfigurator is used both to create a new e-mode category and update an existing one, better to have this step before listings.
That way it is possible to, in the same payload and without boiling down to preExecute(), create an e-mode category and assign a new listing to it.
Not something too frequent I would say, but possible and doesn't hurt
| @@ -6,6 +6,14 @@ library EngineFlags { | |||
| /// Strongly assumes that the value `type(uint256).max - 42` will never be used, which seems reasonable | |||
| uint256 internal constant KEEP_CURRENT = type(uint256).max - 42; | |||
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| /// @dev magic value to be used as flag to keep unchanged any current configuration | |||
| /// Strongly assumes that the value `AaveV3ConfigEngine.EngineFlags.KEEP_CURRENT_STRING` will never be used, which seems reasonable | |||
| string internal constant KEEP_CURRENT_STRING = 'AaveV3ConfigEngine.EngineFlags.KEEP_CURRENT_STRING'; | |||
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Maybe not necessary to have so long string on this, as I don't see any chance for KEEP_CURRENT_STRING to be used anyhow in the context of any string config on Aave
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| /// @dev magic value to be used as flag to keep unchanged any current configuration | ||
| /// Strongly assumes that the value `0x00000000000000000000000000000000000042` will never be used, which seems reasonable | ||
| address internal constant KEEP_CURRENT_ADDRESS = address(0x00000000000000000000000000000000000042); |
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I'd say better something different. Projects tend to use the 42, so even if maybe not clashing now, you never now.
E.g. https://optimistic.etherscan.io/address/0x4200000000000000000000000000000000000000
| @@ -453,6 +472,59 @@ contract AaveV3ConfigEngine is IAaveV3ConfigEngine { | |||
| } | |||
| } | |||
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| function _configEModeCategories(EModeCategories[] memory updates) internal { | |||
| for (uint256 i = 0; i < updates.length; i++) { | |||
| if ( | |||
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A case that is missing here (and actually in some other functions that we are fixing) is all params == KEEP_CURRENT.
Right now it will still query the pool and call setEModeCategory, which even if not damaging, it is unnecessary
Still needs some finishing touches like a _validate function for emode category changes and more checks on the params before calling into the pool configurator, and the new engine would need to be deployed before this was usable downstream.