1 files changed, 8 insertions, 0 deletions
diff --git a/pkg/lang/vm/errors.go b/pkg/lang/vm/errors.go
index 4781179..fb37726 100644
--- a/pkg/lang/vm/errors.go
+++ b/pkg/lang/vm/errors.go
@@ -62,6 +62,14 @@ func (e ErrCorruptedMemCell) Error() string {
 	return fmt.Sprintf("corrupted memory cell at %s", e.Ptr.String())
 }
 
+type ErrCantReanchorType struct {
+	Type value.TypeKind
+}
+
+func (e ErrCantReanchorType) Error() string {
+	return fmt.Sprintf("can't reanchor type of value which already is of type %v", e.Type)
+}
+
 // Non-fatal errors, which will later be implemented as catchable exceptions
 
 type ErrInvalidOperandType struct {