Allow full node to verify author inherent #192
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crystalin
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Jan 20, 2021
| println!("{:?}", call); | ||
| } | ||
| // This if let should always be true. This is the only call that the inehrent could make. | ||
| if let Self::Call::set_author(claimed_author) = call { |
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I don't understand why it is needed to set the author in the check.
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I'm pattern matching call, the parameter that was passed into the function, against the variants of the Self::Call enum. set_author is not actually a function and I'm not calling it. It is a variant of the Self::Call enum. This is hard to read because typically enum variants are written in ThisCaseStandard. But the Call enum is an exception because of how the FRAME macros work.
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That might be worthy of a comment, although that's probably true of a lot of other cases...
notlesh
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Jan 20, 2021
4meta5
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Jan 20, 2021
4meta5
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Jan 20, 2021
4meta5
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Jan 20, 2021
Co-authored-by: Amar Singh <[email protected]>
crystalin
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joshy-parachain-full-nodes-verify-author-inherent
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What does it do?
Changes the inherent checking logic for the author inherent. It was previously "checking" the inherent as if the verifying node had made the inherent. It now checks the actual inherent that the actual author included.
What important points reviewers should know?
Docs for the
ProvideInherenttrait: https://crates.parity.io/sp_inherents/trait.ProvideInherent.html These docs are not great, and I've made an attempt to improve them in paritytech/substrate#7941What alternative implementations were considered?
We considered not checking the inherent at all, but this would remove most of the usefulness of the stake pallet.
What value does it bring to the blockchain users?
It is possible to run full nodes.
Checklist