From 8a82acd2c0dbd26b7eecc31080046d1855c85ea3 Mon Sep 17 00:00:00 2001
From: mryouse
Date: Sat, 25 Jun 2022 01:55:20 +0000
Subject: performance of environment.get not so good

---
 neb/structs.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/neb/structs.py b/neb/structs.py
index 1cb2adc..fcfa430 100644
--- a/neb/structs.py
+++ b/neb/structs.py
@@ -163,12 +163,14 @@ class Environment:
             return False
 
     def get(self, key):
-        if not self.contains(key):
-            raise NebPanic(f"undefined symbol: '{key}")
-        if key in self.environment:
+        try:
             return self.environment[key]
-        else:
+        except:
+            pass
+        try:
             return self.parent.get(key)
+        except:
+            raise NebPanic(f"undefined symbol: '{key}")
 
     def __str__(self):
         out = ""
-- 
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