optimizations

internal/object/error.go

@@ -23,6 +23,23 @@ func (e Error) Copy() Object {
 	return Error{Message: e.Message}
 }
 
+func (e Error) Compare(other Object) int {
+	if obj, ok := other.(Error); ok {
+		if e.Message > obj.Message {
+			return 1
+		}
+		if e.Message == obj.Message {
+			return 0
+		}
+		return -1
+	}
+	return -1
+}
+
+func (e Error) Error() string {
+	return e.Message
+}
+
 func (e Error) String() string {
 	return e.Message
 }