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txs.Hash() to avoid extra allocs

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This commit is contained in:
Ethan Buchman
2016-03-12 13:01:08 -05:00
parent a34f9e082e
commit d23f38b4f3
2 changed files with 23 additions and 6 deletions
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8
types/block.go
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@ -329,7 +329,7 @@ type Data struct {
// Txs that will be applied by state @ block.Height+1.
// NOTE: not all txs here are valid. We're just agreeing on the order first.
// This means that block.AppHash does not include these txs.
Txs []Tx `json:"txs"`
Txs Txs `json:"txs"`
// Volatile
hash []byte
@ -342,11 +342,7 @@ func (data *Data) Hash() []byte {
return data.hash
}
if data.hash == nil {
txs := make([]interface{}, len(data.Txs))
for i, tx := range data.Txs {
txs[i] = tx
}
data.hash = merkle.SimpleHashFromBinaries(txs) // NOTE: leaves are TxIDs.
data.hash = data.Txs.Hash() // NOTE: leaves of merkle tree are TxIDs
}
return data.hash
}