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Eliminate a few Anys in LruCache type hints (#11453)

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Sean Quah 2021-11-30 15:39:07 +00:00 • committed by GitHub
parent 432a174bc1
commit 5a0b652d36
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4 changed files with 32 additions and 19 deletions
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9
synapse/util/caches/deferred_cache.py
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@ -22,6 +22,7 @@ from typing import (
Iterable,
MutableMapping,
Optional,
Sized,
TypeVar,
Union,
cast,
@ -104,7 +105,13 @@ class DeferredCache(Generic[KT, VT]):
max_size=max_entries,
cache_name=name,
cache_type=cache_type,
size_callback=(lambda d: len(d) or 1) if iterable else None,
size_callback=(
(lambda d: len(cast(Sized, d)) or 1)
# Argument 1 to "len" has incompatible type "VT"; expected "Sized"
# We trust that `VT` is `Sized` when `iterable` is `True`
if iterable
else None
),
metrics_collection_callback=metrics_cb,
apply_cache_factor_from_config=apply_cache_factor_from_config,
prune_unread_entries=prune_unread_entries,