Fix bug in runtime when exporting null|undefined to interface{} (robe…

…rtkrimen#244)
ariefsam · Apr 24, 2017 · 21ec965 · 21ec965
1 parent 1861f24
commit 21ec965
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/call_test.go b/call_test.go
@@ -1504,3 +1504,9 @@ func TestNativeCallPointerMethodWithStructPointer(t *testing.T) {
  t.Fail()
  }
 }
+
+func TestNativeCallNilInterfaceArg(t *testing.T) {
+ vm := New()
+ vm.Set("f1", func(v interface{}) {})
+ vm.Call("f1", nil, nil)
+}
diff --git a/runtime.go b/runtime.go
@@ -302,7 +302,11 @@ func (self *_runtime) convertCallParameter(v Value, t reflect.Type) reflect.Valu
  }
 
  if t.Kind() == reflect.Interface {
- iv := reflect.ValueOf(v.export())
+ e := v.export()
+ if e == nil {
+ return reflect.Zero(t)
+ }
+ iv := reflect.ValueOf(e)
  if iv.Type().AssignableTo(t) {
  return iv
  }