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Prefer type(x) is int to isinstance(x, int) (#14945)

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* Perfer `type(x) is int` to `isinstance(x, int)`

This covered all additional instances I could see where `x` was
user-controlled.
The remaining cases are

```
$ rg -s 'isinstance.*[^_]int'
tests/replication/_base.py
576:        if isinstance(obj, int):

synapse/util/caches/stream_change_cache.py
136:        assert isinstance(stream_pos, int)
214:        assert isinstance(stream_pos, int)
246:        assert isinstance(stream_pos, int)
267:        assert isinstance(stream_pos, int)

synapse/replication/tcp/external_cache.py
133:        if isinstance(result, int):

synapse/metrics/__init__.py
100:        if isinstance(calls, (int, float)):

synapse/handlers/appservice.py
262:        assert isinstance(new_token, int)

synapse/config/_util.py
62:        if isinstance(p, int):
```

which cover metrics, logic related to `jsonschema`, and replication and
data streams. AFAICS these are all internal to Synapse

* Changelog
This commit is contained in:
David Robertson 2023-01-31 10:33:07 +00:00 • committed by GitHub
parent 510d4b06e7
commit 796a4b7482
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14 changed files with 75 additions and 47 deletions
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2
synapse/handlers/message.py
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@ -377,7 +377,7 @@ class MessageHandler:
"""
expiry_ts = event.content.get(EventContentFields.SELF_DESTRUCT_AFTER)
if not isinstance(expiry_ts, int) or event.is_state():
if type(expiry_ts) is not int or event.is_state():
return
# _schedule_expiry_for_event won't actually schedule anything if there's already