X-Git-Url: http://git.osdn.net/view?p=bytom%2Fvapor.git;a=blobdiff_plain;f=blockchain%2Ftxbuilder%2Fsigning_instruction.go;h=bf04773a04a81c80c4de06c8653210a419cbaf5f;hp=e8786e2f9c47aae74845962ee8349a696f0093ca;hb=5d074a5954520a5d385683a1fc254df70fa9d25c;hpb=0af46f9b56a27c0c440c28291059c073dc7f3f4a

diff --git a/blockchain/txbuilder/signing_instruction.go b/blockchain/txbuilder/signing_instruction.go
index e8786e2f..bf04773a 100644
--- a/blockchain/txbuilder/signing_instruction.go
+++ b/blockchain/txbuilder/signing_instruction.go
@@ -8,6 +8,11 @@ import (
 	"github.com/vapor/errors"
 )
 
+func (si *SigningInstruction) AddDataWitness(data chainjson.HexBytes) {
+	dw := DataWitness(data)
+	si.WitnessComponents = append(si.WitnessComponents, &dw)
+}
+
 // AddWitnessKeys adds a SignatureWitness with the given quorum and
 // list of keys derived by applying the derivation path to each of the
 // xpubs.