From 103dcbea35b572f2cd0565fef5b9345c60710d13 Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Sun, 11 Dec 2022 00:08:39 -0500
Subject: [PATCH] Add an assert.

---
 src/parser/text_element_parser.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/parser/text_element_parser.rs b/src/parser/text_element_parser.rs
index 3809763a..257fb618 100644
--- a/src/parser/text_element_parser.rs
+++ b/src/parser/text_element_parser.rs
@@ -57,6 +57,8 @@ where
 {
     move |mut i: I| {
         let mut current_context = context.clone();
+        // Despite the clone, the Rc should still point to the same value, otherwise we'll get stuck in an endless loop.
+        assert!(current_context.ptr_eq(context));
         loop {
             let len = i.input_len();
             match till_matcher(&current_context, i.clone()) {