optimizations

internal/object/builtin.go

@@ -19,6 +19,19 @@ func (b Builtin) Inspect() string {
 	return fmt.Sprintf("<built-in function %s>", b.Name)
 }
 
+func (b Builtin) Compare(other Object) int {
+	if obj, ok := other.(Builtin); ok {
+		if b.Name > obj.Name {
+			return 1
+		}
+		if b.Name == obj.Name {
+			return 0
+		}
+		return -1
+	}
+	return -1
+}
+
 func (b Builtin) String() string {
 	return b.Inspect()
 }