stream: copy SAB-backed chunks in iter consumers - #64382

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stream: copy SAB-backed chunks in iter consumers#64382
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Fixes: #64381

This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.

bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy
SAB-backed data into a normal ArrayBuffer.

The existing SharedArrayBuffer stream/iter test coverage has been tightened to
assert that SAB-backed input produces non-shared output for these consumers.

Assisted-by: openai:gpt-5.5

@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
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Codecov Report

❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.

Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️

... and 34 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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trivikr deleted the stream-iter-arrayBuffer-consumers-sab branch July 13, 2026 05:14
aduh95 pushed a commit that referenced this pull request Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot mentioned this pull request Jul 21, 2026
Merged
aduh95 pushed a commit that referenced this pull request Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit that referenced this pull request Jul 29, 2026
@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit that referenced this pull request Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot mentioned this pull request Aug 21, 2026
Merged
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stream/iter: arrayBuffer consumers return SharedArrayBuffer for SAB-backed chunks

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stream: copy SAB-backed chunks in iter consumers - #64382
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nodejs-github-bot merged 1 commit into
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trivikr:stream-iter-arrayBuffer-consumers-sab
Jul 11, 2026
Merged
stream: copy SAB-backed chunks in iter consumers#64382
nodejs-github-bot merged 1 commit into
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trivikr:stream-iter-arrayBuffer-consumers-sab
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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
@nodejs-github-bot
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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deleted the

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aduh95 pushed a commit
that referenced
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
mentioned this pull request
Jul 21, 2026
 Merged

aduh95 pushed a commit
that referenced
this pull request
Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit
that referenced
this pull request
Jul 29, 2026
@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit
that referenced
this pull request
Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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stream: copy SAB-backed chunks in iter consumers - #64382
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trivikr:stream-iter-arrayBuffer-consumers-sab
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stream: copy SAB-backed chunks in iter consumers#64382
nodejs-github-bot merged 1 commit into
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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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aduh95 pushed a commit
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
mentioned this pull request
Jul 21, 2026
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aduh95 pushed a commit
that referenced
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit
that referenced
this pull request
Jul 29, 2026
@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit
that referenced
this pull request
Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
mentioned this pull request
Aug 21, 2026
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stream/iter: arrayBuffer consumers return SharedArrayBuffer for SAB-backed chunks


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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
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aduh95 pushed a commit
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@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit
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@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit
that referenced
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Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
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stream/iter: arrayBuffer consumers return SharedArrayBuffer for SAB-backed chunks


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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
stream: copy SAB-backed chunks in iter consumers - #64382
Merged
nodejs-github-bot merged 1 commit into
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trivikr:stream-iter-arrayBuffer-consumers-sab
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Merged
stream: copy SAB-backed chunks in iter consumers#64382
nodejs-github-bot merged 1 commit into
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trivikr:stream-iter-arrayBuffer-consumers-sab
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Jul 9, 2026

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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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deleted the

stream-iter-arrayBuffer-consumers-sab

branch
July 13, 2026 05:14
aduh95 pushed a commit
that referenced
this pull request
Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
mentioned this pull request
Jul 21, 2026
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aduh95 pushed a commit
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit
that referenced
this pull request
Jul 29, 2026
@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit
that referenced
this pull request
Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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stream: copy SAB-backed chunks in iter consumers - #64382
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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
@nodejs-github-bot
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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aduh95 pushed a commit
that referenced
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
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stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
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@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
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aduh95 pushed a commit
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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Jul 21, 2026
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aduh95 pushed a commit
that referenced
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Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit
that referenced
this pull request
Jul 29, 2026
@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit
that referenced
this pull request
Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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Aug 21, 2026
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stream/iter: arrayBuffer consumers return SharedArrayBuffer for SAB-backed chunks


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injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
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stream: copy SAB-backed chunks in iter consumers - #64382
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trivikr:stream-iter-arrayBuffer-consumers-sab
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Fixes: #64381
This updates the stream/iter byte consumers to avoid preserving
SharedArrayBuffer backing stores when collecting a single full-buffer chunk.
bytes() and bytesSync() now copy SAB-backed chunks into a new
Uint8Array, and arrayBuffer() / arrayBufferSync() defensively copy

SAB-backed data into a normal ArrayBuffer.
The existing SharedArrayBuffer stream/iter test coverage has been tightened to

assert that SAB-backed input produces non-shared output for these consumers.
Assisted-by: openai:gpt-5.5
@trivikr
stream: copy SAB-backed chunks in iter consumers
70fa4ce
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
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Codecov Report
❌ Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

✅ Project coverage is 90.23%. Comparing base (0032189) to head (70fa4ce).
⚠️ Report is 7 commits behind head on main.
Files with missing linesPatch %Lines
lib/internal/streams/iter/consumers.js50.00%3 Missing ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #64382 +/- ##
==========================================
- Coverage 90.23% 90.23% -0.01% 
==========================================
Files 741 741 Lines 241194 241197 +3 Branches 45432 45427 -5 ==========================================
Hits 217640 217640 + Misses 15129 15124 -5 - Partials 8425 8433 +8 
Files with missing linesCoverage Δ
lib/internal/streams/iter/utils.js98.21% <100.00%> (+0.02%)⬆️
lib/internal/streams/iter/consumers.js96.63% <50.00%> (-0.52%)⬇️
... and 34 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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July 13, 2026 05:14
aduh95 pushed a commit
that referenced
this pull request
Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
cf7b370
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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aduh95 pushed a commit
that referenced
this pull request
Jul 21, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
faf25bc
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
RafaelGSS pushed a commit
that referenced
this pull request
Jul 29, 2026
@trivikr@RafaelGSS
stream: copy SAB-backed chunks in iter consumers
4f4bce6
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
aduh95 pushed a commit
that referenced
this pull request
Aug 6, 2026
@trivikr@aduh95
stream: copy SAB-backed chunks in iter consumers
d4dfb66
Ensure bytes() copies single chunks backed by SharedArrayBuffer so
arrayBuffer() and arrayBufferSync() return ArrayBuffer instances as
specified.
Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: #64382Fixes: #64381
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mattias Buelens <mattias@buelens.com>
@github-actionsgithub-actionsBot
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