From b3d904b0432477948c769357c178d15da1c2d41c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20Kl=C3=B6ckner?= <inform@tiker.net>
Date: Tue, 24 May 2022 17:01:54 -0500
Subject: [PATCH] Deprecate CachingMapperMixin in favor of CachedMapper (#103)

---
 pymbolic/mapper/__init__.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pymbolic/mapper/__init__.py b/pymbolic/mapper/__init__.py
index 1ef44fe..bac3b58 100644
--- a/pymbolic/mapper/__init__.py
+++ b/pymbolic/mapper/__init__.py
@@ -993,6 +993,11 @@ class CachingMapperMixin:
         super().__init__()
         self.result_cache = {}
 
+        from warnings import warn
+        warn("CachingMapperMixin is deprecated and will be removed "
+                "in version 2023.x. Use CachedMapper instead.",
+                DeprecationWarning, stacklevel=2)
+
     def rec(self, expr):
         try:
             return self.result_cache[expr]
-- 
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