From e84d4a88e9947975643a0098a7385e4f6f1969ad Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Thu, 28 May 2020 14:08:07 +0800
Subject: [PATCH] Do not check function call depth if no_function.

---
 src/engine.rs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/engine.rs b/src/engine.rs
index a96bae7b..80b84110 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -608,10 +608,13 @@ impl Engine {
         let native_only = hashes.1 == 0;
 
         // Check for stack overflow
-        if level > self.max_call_stack_depth {
-            return Err(Box::new(EvalAltResult::ErrorStackOverflow(pos)));
+        #[cfg(not(feature = "no_function"))]
+        #[cfg(not(feature = "unchecked"))]
+        {
+            if level > self.max_call_stack_depth {
+                return Err(Box::new(EvalAltResult::ErrorStackOverflow(pos)));
+            }
         }
-
         // First search in script-defined functions (can override built-in)
         if !native_only {
             if let Some(fn_def) = lib.get(&hashes.1) {