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Update previous epoch function

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Paul Hauner 2019-02-16 15:09:43 +11:00
parent b79f0cdf68
commit f83d02b394
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1 changed files with 6 additions and 1 deletions
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7
eth2/types/src/beacon_state.rs
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@ -203,7 +203,12 @@ impl BeaconState {
/// ///
/// Spec v0.2.0 /// Spec v0.2.0
pub fn previous_epoch(&self, spec: &ChainSpec) -> Epoch { pub fn previous_epoch(&self, spec: &ChainSpec) -> Epoch {
self.current_epoch(spec).saturating_sub(1_u64) let current_epoch = self.current_epoch(&spec);
if current_epoch == spec.genesis_epoch {
current_epoch
} else {
current_epoch - 1
}
} }
/// The epoch following `self.current_epoch()`. /// The epoch following `self.current_epoch()`.