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Diffstat (limited to 'pkg/lang/vm/value/value.go')
-rw-r--r--pkg/lang/vm/value/value.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/lang/vm/value/value.go b/pkg/lang/vm/value/value.go
index a2909ba..cce0f1b 100644
--- a/pkg/lang/vm/value/value.go
+++ b/pkg/lang/vm/value/value.go
@@ -85,6 +85,10 @@ func (v Value) WithOutlet(outlet mem.Ptr) Value {
 	return Value{t: v.t, d: v.d, outlet: outlet}
 }
 
+func (v Value) IsEmpty() bool {
+	return v.t == mem.NullPtr
+}
+
 func (v Value) Clone(m mem.Mem) Value {
 	if v.t.Kind == StringType {
 		str := v.d.(StringData)