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cache: Remove needless monkey patching.

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Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit is contained in:
Anders Kaseorg
2022-06-06 23:55:14 -07:00
committed by Tim Abbott
parent dfacd62d93
commit d5fea08b8a
1 changed files with 8 additions and 7 deletions
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15
zerver/lib/cache.py
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@@ -755,21 +755,22 @@ def ignore_unhashable_lru_cache(
# change to refresh the source files from disk.
return user_function
# Casting to Any since we're about to monkey-patch this.
cache_enabled_user_function: Any = internal_decorator(user_function)
cache_enabled_user_function = internal_decorator(user_function)
key_prefix = KEY_PREFIX
def wrapper(*args: ParamT.args, **kwargs: ParamT.kwargs) -> ReturnT:
if not hasattr(cache_enabled_user_function, "key_prefix"):
cache_enabled_user_function.key_prefix = KEY_PREFIX
nonlocal key_prefix
if cache_enabled_user_function.key_prefix != KEY_PREFIX:
if key_prefix != KEY_PREFIX:
# Clear cache when cache.KEY_PREFIX changes. This is used in
# tests.
cache_enabled_user_function.cache_clear()
cache_enabled_user_function.key_prefix = KEY_PREFIX
key_prefix = KEY_PREFIX
try:
return cache_enabled_user_function(*args, **kwargs)
return cache_enabled_user_function(
*args, **kwargs # type: ignore[arg-type] # might be unhashable
)
except TypeError:
# args or kwargs contains an element which is unhashable. In
# this case we don't cache the result.