From 55e136e9bcd15ab9d26eeaee2ffe9280ecbd3054 Mon Sep 17 00:00:00 2001
From: Celestino Amoroso <celestino.amoroso@gmail.com>
Date: Sat, 13 Apr 2024 04:31:53 +0200
Subject: [PATCH] ast.go: String() function addedd to the Expr interface

---
 ast.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ast.go b/ast.go
index 43969d5..cde43ec 100644
--- a/ast.go
+++ b/ast.go
@@ -12,6 +12,7 @@ import (
 type Expr interface {
 	Eval(ctx ExprContext) (result any, err error)
 	eval(ctx ExprContext, preset bool) (result any, err error)
+	String() string
 }
 
 //-------- ast