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GH-100000: Cleanup and polish various watchers code by itamaro · Pull Request #99998 · python/cpython · GitHub

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GH-100000: Cleanup and polish various watchers code - #99998

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markshannon merged 7 commits into
python:mainfrom
itamaro:watchers-polish
Dec 14, 2022
Merged

GH-100000: Cleanup and polish various watchers code#99998
markshannon merged 7 commits into
python:mainfrom
itamaro:watchers-polish

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itamaro commented Dec 5, 2022
edited by bedevere-bot
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This includes:

  1. Followup on @markshannon's comment, improving code watchers dispatch efficiency (read callback only if watcher is on the active watchers bits, and bail out early from dispatch loop)
  2. Apply same optimization to func watchers dispatch loop as well
  3. Remove dict watchers array that was never used
  4. Add initialization of type watchers array
  5. Add (PyCFunction) cast to a few test functions
  6. Change an invariant test in type watchers dispatch loop to an assert

- Remove `dict_watchers` array on the interpreter state (was never used, likely added in [the function watchers
PR](https://github.com/python/cpython/pull/98175/files#diff-cb06b7ba43789a1d6ae5bef46baa8a255b72dbcd2b44bfec7f146ea4e94dbfa0) when resolving a merge conflict)
- Cast `METH_NOARGS` function to `(PyCFunction)` in watchers test methods
- Initialize `type_watchers` array to `NULL`s

itamaro commented Dec 5, 2022

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I'm pretty sure this doesn't require a news entry, but not sure whether an issue is needed. let me know and I can file an issue if needed!

itamaro changed the title Cleanup and polish various watchers code GH-100000: Cleanup and polish various watchers code Dec 5, 2022

itamaro commented Dec 5, 2022

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filed an issue preemptively, got the nice and round GH-100000 ^_^

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Looks good to me, thanks for the cleanup!

Comment thread Objects/funcobject.c Outdated

netlify Bot commented Dec 13, 2022
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Looks good. Thanks.

markshannon merged commit ae83c78 into python:main Dec 14, 2022
carljm added a commit to carljm/cpython that referenced this pull request Dec 16, 2022
* main:
  Improve stats presentation for calls. (pythonGH-100274)
  Better stats for `LOAD_ATTR` and `STORE_ATTR` (pythonGH-100295)
  pythongh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState (python#100277)
  Document that zipfile's pwd parameter is a `bytes` object (python#100209)
  pythongh-99767: mark `PyTypeObject.tp_watched` as internal use only in table (python#100271)
  Fix typo in introduction.rst (python#100266)
  pythongh-78997: AttributeError if loading fails in LibraryLoader.__getattr__
  pythonGH-100234: Set a default value for random.expovariate() (pythonGH-100235)
  Remove uninformative itertools recipe (pythonGH-100253)
  pythonGH-99767: update PyTypeObject docs for type watchers (pythonGH-99928)
  Move stats for the method cache into the `Py_STAT` machinery (pythonGH-100255)
  pythonGH-100222: fix typo _py_set_opocde -> _py_set_opcode (pythonGH-100259)
  pythonGH-100000: Cleanup and polish various watchers code (pythonGH-99998)
  pythongh-90111: Minor Cleanup for Runtime-Global Objects (pythongh-100254)
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