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stream: fix Writable.toWeb() desiredSize for non-object-mode - #62986
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nodejs-github-bot merged 1 commit intoJun 21, 2026
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@## main #62986 +/- ##
==========================================
- Coverage 90.32% 90.32% -0.01%
==========================================
Files 730 730 Lines 234209 234157 -52 Branches 43934 43906 -28 ==========================================
- Hits 211558 211508 -50 - Misses 14372 14378 +6 + Partials 8279 8271 -8
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Renegade334
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Apr 27, 2026
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Technically, I think the Node.js side deals exclusively in |
Renegade334
approved these changes
Apr 27, 2026
Writable.toWeb() used a plain { highWaterMark } as the queuing
strategy for non-object-mode streams, which meant no size function
was provided. The WritableStream defaulted to counting each chunk
as size 1, so desiredSize was incorrect (e.g., a 3-byte Uint8Array
was counted as size 1 instead of 3).
Add a size() function to the strategy that mirrors how the Node.js
stream computes chunk length: byteLength for typed arrays, length
for strings/buffers, falling back to 1.
Fixes: nodejs#56269
Signed-off-by: Matteo Collina <hello@matteocollina.com>mcollinaforce-pushed
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aduh95 pushed a commit
that referenced
this pull request
Jun 22, 2026
Writable.toWeb() used a plain { highWaterMark } as the queuing
strategy for non-object-mode streams, which meant no size function
was provided. The WritableStream defaulted to counting each chunk
as size 1, so desiredSize was incorrect (e.g., a 3-byte Uint8Array
was counted as size 1 instead of 3).
Add a size() function to the strategy that mirrors how the Node.js
stream computes chunk length: byteLength for typed arrays, length
for strings/buffers, falling back to 1.
Fixes: #56269
Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: #62986
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>aduh95 pushed a commit
that referenced
this pull request
Jun 25, 2026
Writable.toWeb() used a plain { highWaterMark } as the queuing
strategy for non-object-mode streams, which meant no size function
was provided. The WritableStream defaulted to counting each chunk
as size 1, so desiredSize was incorrect (e.g., a 3-byte Uint8Array
was counted as size 1 instead of 3).
Add a size() function to the strategy that mirrors how the Node.js
stream computes chunk length: byteLength for typed arrays, length
for strings/buffers, falling back to 1.
Fixes: #56269
Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: #62986
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>aduh95 pushed a commit
that referenced
this pull request
Jul 21, 2026
Writable.toWeb() used a plain { highWaterMark } as the queuing
strategy for non-object-mode streams, which meant no size function
was provided. The WritableStream defaulted to counting each chunk
as size 1, so desiredSize was incorrect (e.g., a 3-byte Uint8Array
was counted as size 1 instead of 3).
Add a size() function to the strategy that mirrors how the Node.js
stream computes chunk length: byteLength for typed arrays, length
for strings/buffers, falling back to 1.
Fixes: #56269
Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: #62986
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>aduh95 pushed a commit
that referenced
this pull request
Jul 22, 2026
Writable.toWeb() used a plain { highWaterMark } as the queuing
strategy for non-object-mode streams, which meant no size function
was provided. The WritableStream defaulted to counting each chunk
as size 1, so desiredSize was incorrect (e.g., a 3-byte Uint8Array
was counted as size 1 instead of 3).
Add a size() function to the strategy that mirrors how the Node.js
stream computes chunk length: byteLength for typed arrays, length
for strings/buffers, falling back to 1.
Fixes: #56269
Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: #62986
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>aduh95 pushed a commit
that referenced
this pull request
Jul 30, 2026
Writable.toWeb() used a plain { highWaterMark } as the queuing
strategy for non-object-mode streams, which meant no size function
was provided. The WritableStream defaulted to counting each chunk
as size 1, so desiredSize was incorrect (e.g., a 3-byte Uint8Array
was counted as size 1 instead of 3).
Add a size() function to the strategy that mirrors how the Node.js
stream computes chunk length: byteLength for typed arrays, length
for strings/buffers, falling back to 1.
Fixes: #56269
Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: #62986
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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Writable.toWeb() used a plain
{ highWaterMark }as the queuing strategy for non-object-mode streams, which meant nosizefunction was provided. The WritableStream defaulted to counting each chunk as size 1, sodesiredSizewas incorrect (e.g. a 3-byteUint8Arraywas counted as size 1 instead of 3).Add a
size()function to the strategy that mirrors how the Node.js stream computes chunk length:byteLengthfor typed arrays,lengthfor strings/buffers, falling back to 1.Fixes: #56269