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Diffstat (limited to 'synapse/util/caches/treecache.py')
| -rw-r--r-- | synapse/util/caches/treecache.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/util/caches/treecache.py b/synapse/util/caches/treecache.py index 73502a8b06..a6df81ebff 100644 --- a/synapse/util/caches/treecache.py +++ b/synapse/util/caches/treecache.py @@ -89,6 +89,9 @@ class TreeCache: value. If the key is partial, the TreeCacheNode corresponding to the part of the tree that was removed. """ + if not isinstance(key, tuple): + raise TypeError("The cache key must be a tuple not %r" % (type(key),)) + # a list of the nodes we have touched on the way down the tree nodes = [] |