X-Git-Url: http://git.osdn.net/view?p=bytom%2Fvapor.git;a=blobdiff_plain;f=protocol%2Fbc%2Ftypes%2Fblock_witness.go;h=52f3e0e4482adb6556828aea787573d2818572f8;hp=e4bb2ac7c600e6e618409a98db4e4363b2e6bd02;hb=f47413c46121216dae3b1a905fbe53ae559adee2;hpb=4cd4945c706817ae5b3dcd76d874a5072cfcc4c2

diff --git a/protocol/bc/types/block_witness.go b/protocol/bc/types/block_witness.go
index e4bb2ac7..52f3e0e4 100644
--- a/protocol/bc/types/block_witness.go
+++ b/protocol/bc/types/block_witness.go
@@ -20,3 +20,25 @@ func (bw *BlockWitness) readFrom(r *blockchain.Reader) (err error) {
 	bw.Witness, err = blockchain.ReadVarstrList(r)
 	return err
 }
+
+func (bw *BlockWitness) Set(index uint64, data []byte) {
+	if uint64(len(bw.Witness)) <= index {
+		newWitness := make([][]byte, index+1, index+1)
+		copy(newWitness, bw.Witness)
+		bw.Witness = newWitness
+	}
+	bw.Witness[index] = data
+}
+
+func (bw *BlockWitness) Delete(index uint64) {
+	if uint64(len(bw.Witness)) > index {
+		bw.Witness[index] = nil
+	}
+}
+
+func (bw *BlockWitness) Get(index uint64) []byte {
+	if uint64(len(bw.Witness)) > index {
+		return bw.Witness[index]
+	}
+	return nil
+}