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Use Prefix consts instead of hardcoded values in newLeafValue & newIntermediate methods

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arnaucube
2021-08-29 23:40:07 +02:00
parent 1638860da0
commit 01408fba86
1 changed files with 4 additions and 4 deletions
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8
tree.go
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@@ -478,7 +478,7 @@ func newLeafValue(hashFunc HashFunction, k, v []byte) ([]byte, []byte, error) {
return nil, nil, err return nil, nil, err
} }
var leafValue []byte var leafValue []byte
leafValue = append(leafValue, byte(1)) leafValue = append(leafValue, byte(PrefixValueLeaf))
leafValue = append(leafValue, byte(len(k))) leafValue = append(leafValue, byte(len(k)))
leafValue = append(leafValue, k...) leafValue = append(leafValue, k...)
leafValue = append(leafValue, v...) leafValue = append(leafValue, v...)
@@ -509,11 +509,11 @@ func (t *Tree) newIntermediate(l, r []byte) ([]byte, []byte, error) {
// computes its hash. Returns the hash of the node, which is the node key, and a // computes its hash. Returns the hash of the node, which is the node key, and a
// byte array that contains the value (which contains the left & right child // byte array that contains the value (which contains the left & right child
// keys) to store in the DB. // keys) to store in the DB.
// [ 1 byte | 1 byte | N bytes | N bytes ] // [ 1 byte | 1 byte | N bytes | N bytes ]
// [ type of node | length of key | left key | right key ] // [ type of node | length of left key | left key | right key ]
func newIntermediate(hashFunc HashFunction, l, r []byte) ([]byte, []byte, error) { func newIntermediate(hashFunc HashFunction, l, r []byte) ([]byte, []byte, error) {
b := make([]byte, PrefixValueLen+hashFunc.Len()*2) b := make([]byte, PrefixValueLen+hashFunc.Len()*2)
b[0] = 2 b[0] = PrefixValueIntermediate
b[1] = byte(len(l)) b[1] = byte(len(l))
copy(b[PrefixValueLen:PrefixValueLen+hashFunc.Len()], l) copy(b[PrefixValueLen:PrefixValueLen+hashFunc.Len()], l)
copy(b[PrefixValueLen+hashFunc.Len():], r) copy(b[PrefixValueLen+hashFunc.Len():], r)