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converting Binary struct model to native w/ global methods model

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This commit is contained in:
Jae Kwon
2014-09-03 19:21:19 -07:00
parent a8ece216f0
commit d0ec18dc16
14 changed files with 521 additions and 908 deletions
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21
merkle/util.go
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@ -7,10 +7,15 @@ import (
. "github.com/tendermint/tendermint/binary"
)
func HashFromByteSlices(items [][]byte) []byte {
panic("Implement me")
return nil
}
/*
Compute a deterministic merkle hash from a list of byteslices.
*/
func HashFromBinarySlice(items []Binary) ByteSlice {
func HashFromBinarySlice(items []Binary) []byte {
switch len(items) {
case 0:
panic("Cannot compute hash of empty slice")
@ -20,18 +25,22 @@ func HashFromBinarySlice(items []Binary) ByteSlice {
if err != nil {
panic(err)
}
return ByteSlice(hasher.Sum(nil))
return hasher.Sum(nil)
default:
hasher := sha256.New()
_, err := HashFromBinarySlice(items[0 : len(items)/2]).WriteTo(hasher)
var n int64
var err error
var hasher = sha256.New()
hash := HashFromBinarySlice(items[0 : len(items)/2])
WriteByteSlice(hasher, hash, &n, &err)
if err != nil {
panic(err)
}
_, err = HashFromBinarySlice(items[len(items)/2:]).WriteTo(hasher)
hash = HashFromBinarySlice(items[len(items)/2:])
WriteByteSlice(hasher, hash, &n, &err)
if err != nil {
panic(err)
}
return ByteSlice(hasher.Sum(nil))
return hasher.Sum(nil)
}
}