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17 lines
522 B
Go
17 lines
522 B
Go
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package slashutil
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import ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
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// IsSurround checks if an attestation, a, is surrounding
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// another one, b, based on the eth2 slashing conditions specified
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// by @protolambda https://github.com/protolambda/eth2-surround#definition.
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//
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// s: source
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// t: target
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//
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// a surrounds b if: s_a < s_b and t_b < t_a
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//
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func IsSurround(a, b *ethpb.IndexedAttestation) bool {
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return a.Data.Source.Epoch < b.Data.Source.Epoch && b.Data.Target.Epoch < a.Data.Target.Epoch
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}
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