Allow Initializable versions greater than 256 #4460
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🦋 Changeset detectedLatest commit: 5935090 The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
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Bumping pragma to 0.8.20 on Initializable to support NatSpec in structs. Also, keeping it as a draft at the moment because I suspect we may require a test for storage collisions on storage slot 0. |
| @@ -89,17 +102,20 @@ abstract contract Initializable { | |||
| * Emits an {Initialized} event. | |||
| */ | |||
| modifier initializer() { | |||
| bool isTopLevelCall = !_initializing; | |||
| if (!(isTopLevelCall && _initialized < 1) && !(address(this).code.length == 0 && _initialized == 1)) { | |||
| // solhint-disable-next-line var-name-mixedcase | |||
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There are several of these for the $ storage variable. We either keep this rule or wait on protofire/solhint#453 to be merged if that's the case.
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I like this but before reviewing I'll let @Amxx comment whether he thinks this is a good idea. |
| // solhint-disable-next-line var-name-mixedcase | ||
| InitializableStorage storage $ = _getInitializableStorage(); | ||
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| if ($._initializing) { | ||
| revert AlreadyInitialized(); |
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That is not changed by this PR, but I'm wondering if that is the right error to trigger.
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I agree with you but we may decide on this once we decide to tackle #3950 as well
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The storage layout checks are failing as expected |
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Closed accidentally. |
Fixes LIB-828
Fixes #3924
A greater initialized was proposed for #3924, which is implemented within this PR. Also, the EIP-7201 for Namespaced storage is used here to reduce the risk of storage collisions in upgradeable contracts that are also initializable. In this way, the Initializable variables are placed at a storage location that's guaranteed not to clash.
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