1 files changed, 5 insertions, 1 deletions
diff --git a/core/vm/stack.go b/core/vm/stack.go
index bb232d0b9..2be5c3dbe 100644
--- a/core/vm/stack.go
+++ b/core/vm/stack.go
@@ -5,7 +5,7 @@ import (
 	"math/big"
 )
 
-func newStack() *stack {
+func newstack() *stack {
 	return &stack{}
 }
 
@@ -14,6 +14,10 @@ type stack struct {
 	ptr  int
 }
 
+func (st *stack) Data() []*big.Int {
+	return st.data[:st.ptr]
+}
+
 func (st *stack) push(d *big.Int) {
 	// NOTE push limit (1024) is checked in baseCheck
 	stackItem := new(big.Int).Set(d)