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Ignore unknown blocks at fork choice

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This commit is contained in:
Paul Hauner 2019-08-09 12:34:56 +10:00
parent 67fe21c1c0
commit f4121d9deb
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1 changed files with 6 additions and 4 deletions
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8
beacon_node/beacon_chain/src/fork_choice.rs
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@ -119,13 +119,15 @@ impl<T: BeaconChainTypes> ForkChoice<T> {
//
// https://github.com/ethereum/eth2.0-specs/blob/v0.7.0/specs/core/0_fork-choice.md
for attestation in &block.body.attestations {
let block = self
// If the `data.beacon_block_root` block is not known to us, simply ignore the latest
// vote.
if let Some(block) = self
.store
.get::<BeaconBlock<T::EthSpec>>(&attestation.data.beacon_block_root)?
.ok_or_else(|| Error::MissingBlock(attestation.data.beacon_block_root))?;
{
self.process_attestation(state, attestation, &block)?;
}
}
// This does not apply a vote to the block, it just makes fork choice aware of the block so
// it can still be identified as the head even if it doesn't have any votes.