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gh-103000: Optimise dataclasses asdict/astuple for common types #103005

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Merged
AlexWaygood merged 15 commits into from
Apr 10, 2023
Merged

gh-103000: Optimise dataclasses asdict/astuple for common types #103005

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0af5e1d
Special case 'atomic' types that are not deepcopied
DavidCEllis Mar 20, 2023
2c76ef8
Special case dict_factory=dict
DavidCEllis Mar 20, 2023
c58017c
Add comment explaining _ATOMIC_TYPES
DavidCEllis Mar 20, 2023
8fdbdb2
Merge branch 'python:main' into faster_dataclasses_serialize
DavidCEllis Mar 21, 2023
4730a13
Merge branch 'python:main' into faster_dataclasses_serialize
DavidCEllis Mar 24, 2023
3a650a1
Reorder atomic types and clarify intention
DavidCEllis Mar 24, 2023
b6d8a6f
Update Lib/dataclasses.py
DavidCEllis Mar 24, 2023
bf320be
Update Lib/dataclasses.py
DavidCEllis Mar 24, 2023
6280f2e
Convert _ATOMIC_TYPES to frozenset
DavidCEllis Mar 24, 2023
7343fe6
Correction - complex and bytes are not JSON serializable (by default …
DavidCEllis Mar 24, 2023
b77c17e
Remove dict special case for now
DavidCEllis Mar 24, 2023
0209f3c
Revert function call skip for _asdict_inner
DavidCEllis Mar 24, 2023
986371c
Revert function call skip for _astuple_inner
DavidCEllis Mar 24, 2023
801af82
📜🤖 Added by blurb_it.
blurb-it[bot] Mar 24, 2023
903b2fb
Update Misc/NEWS.d/next/Library/2023-03-24-20-49-48.gh-issue-103000.6…
AlexWaygood Apr 10, 2023
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Convert _ATOMIC_TYPES to frozenset
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@DavidCEllis
DavidCEllis committed Mar 24, 2023
commit 6280f2ed4949f77b9771f72287fd89a5cc67b938
4 changes: 2 additions & 2 deletions Lib/dataclasses.py
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Original file line number Diff line number Diff line change
Expand Up @@ -224,7 +224,7 @@ def __repr__(self):

# Atomic immutable types which don't require any recursive handling and for which deepcopy
# returns the same object. We can provide a fast-path for these types in asdict and astuple.
_ATOMIC_TYPES = {
_ATOMIC_TYPES = frozenset({
# Common JSON Serializable types
types.NoneType,
bool,
Expand All @@ -242,7 +242,7 @@ def __repr__(self):
type,
range,
property,
}
})

# This function's logic is copied from "recursive_repr" function in
# reprlib module to avoid dependency.
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