From 5db1fd37122ee587da732300ed48f79535d95e1a Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Wed, 20 May 2020 00:06:19 +0800
Subject: [PATCH] Do not optimize eval_expression scripts.

---
 src/api.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/api.rs b/src/api.rs
index f0e249e9..874aaa4e 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -824,9 +824,10 @@ impl Engine {
             &mut stream.peekable(),
             self,
             scope,
-            self.optimization_level,
+            OptimizationLevel::None, // No need to optimize a lone expression
             self.max_expr_depth,
         )?;
+
         self.eval_ast_with_scope(scope, &ast)
     }