From 51f5d3d9ada2234da98711271dde9b5100aa1704 Mon Sep 17 00:00:00 2001
From: Kaushik Kulkarni <kaushikcfd@gmail.com>
Date: Fri, 18 Jun 2021 10:50:10 -0500
Subject: [PATCH] formatting: avoid closures as much as possible

---
 arraycontext/container/traversal.py | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/arraycontext/container/traversal.py b/arraycontext/container/traversal.py
index 0f349be..ab8198c 100644
--- a/arraycontext/container/traversal.py
+++ b/arraycontext/container/traversal.py
@@ -255,6 +255,16 @@ def keyed_map_array_container(
         raise ValueError("Not an array-container, i.e. unknown key to pass.")
 
 
+def _tuple_if_not_tuple(x: Any) -> Tuple[Union[str, int], ...]:
+    if not isinstance(x, tuple):
+        assert isinstance(x, (str, int))
+        return x,
+    else:
+        assert all(isinstance(el, (str, int))
+                   for el in x)
+        return x
+
+
 def _keyed_map_array_container_impl(
         f: Callable[[Tuple[Union[str, int], ...], Any], Any],
         ary: ArrayContainerT, *,
@@ -272,14 +282,6 @@ def _keyed_map_array_container_impl(
         if type(_ary) is leaf_cls:  # type(ary) is never None
             return f(keys, _ary)
         elif is_array_container(_ary):
-            def _tuple_if_not_tuple(x: Any) -> Tuple[Union[str, int], ...]:
-                if not isinstance(x, tuple):
-                    assert isinstance(x, (str, int))
-                    return x,
-                else:
-                    assert all(isinstance(el, (str, int))
-                               for el in x)
-                    return x
 
             return deserialize_container(_ary, [
                     (key, frec(keys+_tuple_if_not_tuple(key), subary))
-- 
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