You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.1 KiB
38 lines
1.1 KiB
package merkle
|
|
|
|
import (
|
|
"io"
|
|
|
|
amino "github.com/tendermint/go-amino"
|
|
)
|
|
|
|
// Tree is a Merkle tree interface.
|
|
type Tree interface {
|
|
Size() (size int)
|
|
Height() (height int8)
|
|
Has(key []byte) (has bool)
|
|
Proof(key []byte) (value []byte, proof []byte, exists bool) // TODO make it return an index
|
|
Get(key []byte) (index int, value []byte, exists bool)
|
|
GetByIndex(index int) (key []byte, value []byte)
|
|
Set(key []byte, value []byte) (updated bool)
|
|
Remove(key []byte) (value []byte, removed bool)
|
|
HashWithCount() (hash []byte, count int)
|
|
Hash() (hash []byte)
|
|
Save() (hash []byte)
|
|
Load(hash []byte)
|
|
Copy() Tree
|
|
Iterate(func(key []byte, value []byte) (stop bool)) (stopped bool)
|
|
IterateRange(start []byte, end []byte, ascending bool, fx func(key []byte, value []byte) (stop bool)) (stopped bool)
|
|
}
|
|
|
|
// Hasher represents a hashable piece of data which can be hashed in the Tree.
|
|
type Hasher interface {
|
|
Hash() []byte
|
|
}
|
|
|
|
//-----------------------------------------------------------------------
|
|
|
|
// Uvarint length prefixed byteslice
|
|
func encodeByteSlice(w io.Writer, bz []byte) (err error) {
|
|
return amino.EncodeByteSlice(w, bz)
|
|
}
|