vm: implement Neo.Iterator.* interops

pkg/core/interop_neo.go

@@ -808,3 +808,28 @@ func (ic *interopContext) enumeratorNext(v *vm.VM) error {
 func (ic *interopContext) enumeratorValue(v *vm.VM) error {
 	return vm.EnumeratorValue(v)
 }
+
+// iteratorConcat concatenates 2 iterators into a single one.
+func (ic *interopContext) iteratorConcat(v *vm.VM) error {
+	return vm.IteratorConcat(v)
+}
+
+// iteratorCreate creates an iterator from array-like or map stack item.
+func (ic *interopContext) iteratorCreate(v *vm.VM) error {
+	return vm.IteratorCreate(v)
+}
+
+// iteratorKey returns current iterator key.
+func (ic *interopContext) iteratorKey(v *vm.VM) error {
+	return vm.IteratorKey(v)
+}
+
+// iteratorKeys returns keys of the iterator.
+func (ic *interopContext) iteratorKeys(v *vm.VM) error {
+	return vm.IteratorKeys(v)
+}
+
+// iteratorValues returns values of the iterator.
+func (ic *interopContext) iteratorValues(v *vm.VM) error {
+	return vm.IteratorValues(v)
+}