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) } //----------------------------------------------------------------------- // Uvarint length prefixed byteslice func encodeByteSlice(w io.Writer, bz []byte) (err error) { return amino.EncodeByteSlice(w, bz) }