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python / mypy Public

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[mypyc] Add minimal BytesWriter class librt#20297

Merged

JukkaL merged 28 commits intomasterpython/mypy:masterfrom

mypyc-bytes-builderpython/mypy:mypyc-bytes-builderCopy head branch name to clipboard

Nov 25, 2025

Conversation Commits28 (28)Checks Files changed

Merged

[mypyc] Add minimal BytesWriter class librt#20297
JukkaL merged 28 commits intomasterfrom
mypyc-bytes-builder

Commits

Commits on Nov 21, 2025

WIP extract WriteBuffer into a new module
JukkaL
committed
Change module name
JukkaL
committed
WIP rename to BytesWriter
JukkaL
committed
Add initial stub
JukkaL
committed
WIP minimal thing works
JukkaL
committed
WIP start implementing new API
JukkaL
committed
Refactor
JukkaL
committed
Add append method
JukkaL
committed
Add write method
JukkaL
committed
Support repr
JukkaL
committed
Define primitives
JukkaL
committed

Commits on Nov 24, 2025

Rename test file
JukkaL
committed
Add tests
JukkaL
committed
Update test
JukkaL
committed
Support writing bytearray
JukkaL
committed
Add tests
JukkaL
committed
Test more
JukkaL
committed
Refactor
JukkaL
committed
Refactor
JukkaL
committed
Refactor
JukkaL
committed
Remove TODO
JukkaL
committed
Lint
JukkaL
committed
Mark as experimental
JukkaL
committed
Use an embedded buffer initially to reduce number of allocations
JukkaL
committed
Fix buffer growth
JukkaL
committed

Commits on Nov 25, 2025

Mark as experimental
JukkaL
committed
Refactor to store len and capacity instead of just pointers
JukkaL
committed
Work around test failure on 3.9
JukkaL
committed

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