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consensus/ethash: fix a typo and error message #20503

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merged 2 commits into from
Jan 7, 2020
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consensus/ethash: fix a typo and error message #20503

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dc052a1
consensus/ethash: fix a typo and error message
gballet Jan 3, 2020
1448b95
consensus/ethash: update error message
fjl Jan 7, 2020
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6 changes: 3 additions & 3 deletions consensus/ethash/consensus.go
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Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ var (
// codebase, inherently breaking if the engine is swapped out. Please put common
// error types into the consensus package.
var (
errZeroBlockTime = errors.New("timestamp equals parent's")
errOlderBlockTime = errors.New("header timestamp is older or same as parent's")
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Perhaps timestamp older than parent. I know it's not as precise, but I kind of prefer shorter errors than long winded wording that doesn't add significantly more information.

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Updated

errTooManyUncles = errors.New("too many uncles")
errDuplicateUncle = errors.New("duplicate uncle")
errUncleIsAncestor = errors.New("uncle is ancestor")
Expand Down Expand Up @@ -255,9 +255,9 @@ func (ethash *Ethash) verifyHeader(chain consensus.ChainReader, header, parent *
}
}
if header.Time <= parent.Time {
return errZeroBlockTime
return errOlderBlockTime
}
// Verify the block's difficulty based in its timestamp and parent's difficulty
// Verify the block's difficulty based on its timestamp and parent's difficulty
expected := ethash.CalcDifficulty(chain, header.Time, parent)

if expected.Cmp(header.Difficulty) != 0 {
Expand Down