Remove dead code from webcore DOMJIT/EventPath/EventContext and misc C++ bindings - #36756
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…and misc C++ bindings
Deletes unreferenced C++ from webcore and jsc/bindings, verified by rg
across src/ and build/debug/codegen/ plus a full bun bd build.
Whole files removed:
- webcore/DOMJITCheckDOM.h (98 LOC): only includer was JSEventDOMJIT.cpp
- webcore/JSEventDOMJIT.cpp (43 LOC): defined checkSubClassSnippetForJSEvent,
whose sole reference in JSEvent.cpp was behind '#if 0'
- webcore/DOMJITHelpers.cpp (57 LOC): all function bodies were already
commented out; compiled to an empty namespace
- webcore/JSDOMConvertSerializedScriptValue.h (50 LOC): only includer was the
JSDOMConvert.h umbrella; IDLSerializedScriptValue<> was never instantiated
webcore/DOMJITHelpers.h: removed the entire WebCore::DOMJIT namespace body
(~184 LOC of inline helpers and commented-out blocks). Every includer uses
only JSC::DOMJIT (from JavaScriptCore headers), never WebCore::DOMJIT. The
transitive includes are kept.
webcore/EventContext.{h,cpp}: removed handleLocalEvents, node(),
relatedTarget(), setRelatedTarget, isMouseOrFocusEventContext,
isTouchEventContext, isWindowContext, isUnreachableNode, the (Type, Node&, ...)
constructor, the Type enum and m_type field, the m_relatedTarget and
m_contextNodeIsFormElement fields, and all TOUCH_EVENTS / commented blocks.
Only currentTarget()/closedShadowDepth()/target() are reachable via
EventPath::computePathUnclosedToTarget.
webcore/EventPath.{h,cpp}: removed the empty EventPath(Node&, Event&) ctor,
contextAt, eventTargetRespectingTargetRules, the buildPath/setRelatedTarget
declarations, the Touch forward decl and TOUCH_EVENTS block.
webcore/EventListenerMap.{h,cpp}: removed removeFirstEventListenerCreatedFromMarkup,
copyEventListenersNotCreatedFromMarkupToTarget and their static helpers.
These were WebKit markup-listener helpers with zero callers in Bun.
ErrorCode.{h,cpp}:
- Bun::toJS(JSGlobalObject*, ErrorCode): declared, never defined
- INVALID_FILE_URL_HOST(ASCIILiteral) overload: not in the header, so the
two call sites in BunObject.cpp bind to the WTF::String overload
- CRYPTO_JWK_UNSUPPORTED_CURVE(const WTF::String&) overload: only caller
passes (ASCIILiteral, const char*), matching the other overload
- Message::ERR_INVALID_ARG_TYPE(const ZigString*, const ZigString*, JSValue)
overload: zero callers
DOMException.{h,cpp}: removed create(const Exception&) and the static
name(ExceptionCode)/message(ExceptionCode) helpers; zero callers.
CookieMap.{h,cpp}: removed CookieStoreGetOptions struct, getAll(), and the
private CookieMap(Vector<Ref<Cookie>>&&) constructor; zero references.
DOMFormData.{h,cpp}: removed clone(); zero callers.
Single-line dead declarations: Cookie::isValidCookieValue,
ImportMetaObject::createRequireFunction (never defined),
JSCommonJSModule::setSourceCode (never defined) / clearSourceCode / idOrDot,
Sink.h numberOfSinkIDs, ProcessBindingTTYWrap.cpp duplicate forward decl.
Net: +6/-747 in src/, with a source-lint test asserting none of the removed
symbols reappear.
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Updated 2:05 AM PT - Aug 2nd, 2026
@Jarred-Sumner, your commit 5488c1d is building: |
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WalkthroughThe PR removes unused JSC binding APIs, simplifies WebCore event handling, narrows error-code interfaces, removes obsolete DOMJIT helpers, and adds source-lint tests for deleted symbols. ChangesBinding cleanup
Possibly related PRs
🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
Comment |
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Actionable comments posted: 2
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@src/jsc/bindings/webcore/EventContext.h`:
- Around line 43-57: Update EventContext::closedShadowDepth() to return the
stored m_closedShadowDepth value, keeping it consistent with the constructor’s
parameter and member initialization. Do not alter EventPath callers or add
non-zero depth tracking.
In `@test/internal/source-lints/dead-symbols-domjit-eventpath-errorcode.test.ts`:
- Around line 27-30: Remove the four exists(...) assertions for deleted DOMJIT
and serialized-script-value files from this dead-symbol test. Rely on
source-content assertions in surviving files, such as the existing
JSDOMConvert.h include check, and document any deleted-file absence that cannot
be reliably verified by the stash-based harness.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: Path: .coderabbit.yaml
Review profile: ASSERTIVE
Plan: Pro
Run ID: bfdaff9f-9614-41e5-97d9-3dc20cef1b03
📒 Files selected for processing (28)
src/jsc/bindings/Cookie.hsrc/jsc/bindings/CookieMap.cppsrc/jsc/bindings/CookieMap.hsrc/jsc/bindings/DOMException.cppsrc/jsc/bindings/DOMException.hsrc/jsc/bindings/DOMFormData.cppsrc/jsc/bindings/DOMFormData.hsrc/jsc/bindings/ErrorCode.cppsrc/jsc/bindings/ErrorCode.hsrc/jsc/bindings/ImportMetaObject.hsrc/jsc/bindings/JSCommonJSModule.hsrc/jsc/bindings/ProcessBindingTTYWrap.cppsrc/jsc/bindings/Sink.hsrc/jsc/bindings/webcore/DOMJITCheckDOM.hsrc/jsc/bindings/webcore/DOMJITHelpers.cppsrc/jsc/bindings/webcore/DOMJITHelpers.hsrc/jsc/bindings/webcore/EventContext.cppsrc/jsc/bindings/webcore/EventContext.hsrc/jsc/bindings/webcore/EventListenerMap.cppsrc/jsc/bindings/webcore/EventListenerMap.hsrc/jsc/bindings/webcore/EventPath.cppsrc/jsc/bindings/webcore/EventPath.hsrc/jsc/bindings/webcore/JSDOMConvert.hsrc/jsc/bindings/webcore/JSDOMConvertSerializedScriptValue.hsrc/jsc/bindings/webcore/JSEvent.cppsrc/jsc/bindings/webcore/JSEvent.hsrc/jsc/bindings/webcore/JSEventDOMJIT.cpptest/internal/source-lints/dead-symbols-domjit-eventpath-errorcode.test.ts
💤 Files with no reviewable changes (24)
- src/jsc/bindings/webcore/JSEvent.h
- src/jsc/bindings/DOMException.cpp
- src/jsc/bindings/Cookie.h
- src/jsc/bindings/webcore/JSDOMConvertSerializedScriptValue.h
- src/jsc/bindings/DOMFormData.cpp
- src/jsc/bindings/webcore/JSDOMConvert.h
- src/jsc/bindings/Sink.h
- src/jsc/bindings/webcore/DOMJITCheckDOM.h
- src/jsc/bindings/ImportMetaObject.h
- src/jsc/bindings/ErrorCode.h
- src/jsc/bindings/JSCommonJSModule.h
- src/jsc/bindings/webcore/DOMJITHelpers.cpp
- src/jsc/bindings/webcore/DOMJITHelpers.h
- src/jsc/bindings/DOMException.h
- src/jsc/bindings/CookieMap.cpp
- src/jsc/bindings/CookieMap.h
- src/jsc/bindings/DOMFormData.h
- src/jsc/bindings/webcore/JSEventDOMJIT.cpp
- src/jsc/bindings/webcore/EventListenerMap.cpp
- src/jsc/bindings/ProcessBindingTTYWrap.cpp
- src/jsc/bindings/webcore/EventListenerMap.h
- src/jsc/bindings/ErrorCode.cpp
- src/jsc/bindings/webcore/EventContext.cpp
- src/jsc/bindings/webcore/EventPath.h
… EventContext fields; drop exists() asserts closedShadowDepth() now returns m_closedShadowDepth instead of a literal 0, so the accessor agrees with the constructor parameter. While here, drop the remaining EventContext members that had zero readers after the first commit: the EventInvokePhase alias, isCurrentTargetInShadowTree(), target(), m_node, m_target, m_currentTargetIsInShadowTree, and the Node*/origin constructor parameters. EventPath only ever reads currentTarget() and closedShadowDepth(); composedPath() behavior is unchanged. The source-lint test no longer asserts existsSync(...) on deleted files; the content checks in surviving files (JSDOMConvert.h include, JSEvent.cpp symbol, DOMJITHelpers.h namespace) already cover them.
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EventContext.cpp no longer needs EventNames.h (only the dtor remains).
DOMException.{h,cpp} no longer reference class Exception now that
create(const Exception&) is gone. EventListenerMap.cpp no longer needs
JSEventListener.h now that the wasCreatedFromMarkup helpers are gone.
The stash-based verification harness can leave deleted files on disk from the pre-change build; combined with the gutted DOMJITHelpers.h, the resurrected DOMJITCheckDOM.h/JSEventDOMJIT.cpp would fail to compile. Follow the existing pattern (EventDispatcher.h/cpp) and keep these as two-line stubs instead of deleting them outright. Net change is +8 lines versus full deletion; the .cpp stubs also keep unified-source bundle bucketing stable across the diff.
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The diff is ready. The gate (robobun/evidence) passes on both ASAN and release; source-lints pass. Buildkite #87636 (and #87622 before it) has only
The Final shape: -774 net LOC in |
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LGTM — the two earlier rounds of orphaned-include/field feedback are addressed at PR HEAD (cca5de9), and the remaining inline nit is pre-existing dead code with no runtime effect.
Extended reasoning...
Overview
Pure dead-code removal across 28 files in src/jsc/bindings/ and src/jsc/bindings/webcore/: gutting the unused WebCore::DOMJIT namespace and checkSubClassSnippetForJSEvent machinery (which was already behind #if 0), stripping EventContext/EventPath/EventListenerMap down to what composedPath() actually reaches, and dropping ~15 assorted never-called overloads/declarations from ErrorCode, DOMException, CookieMap, DOMFormData, ImportMetaObject, JSCommonJSModule, Sink.h, and ProcessBindingTTYWrap.cpp. Deleted files are kept as two-line stubs so unified-source bucketing and the stash-based verification harness stay stable. A source-lint test guards against reintroduction.
Security risks
None. Every change is subtractive; no new inputs are parsed, no validation is loosened, no auth/crypto logic is touched beyond deleting an unreachable CRYPTO_JWK_UNSUPPORTED_CURVE overload whose sole call site (KeyObject.cpp:268, four args) already binds to the surviving (ASCIILiteral, const char*) overload.
Level of scrutiny
Moderate. The diff is wide (28 files, −761/+102) but mechanical: each removed symbol is either declared-never-defined, defined-never-called, or already behind #if 0/comments. The debug build links, which is the load-bearing proof that nothing removed was referenced. I spot-checked the two overload removals whose deletion could in principle silently reroute callers — INVALID_FILE_URL_HOST(..., ASCIILiteral) was never declared in the header so the two BunObject.cpp callers already bound to the WTF::String& overload, and the removed CRYPTO_JWK_UNSUPPORTED_CURVE(..., WTF::String&) has a different arity than its only call site. numberOfSinkIDs/CookieStoreGetOptions/idOrDot/clearSourceCode have zero remaining references.
Other factors
This is the third review pass. The first two rounds flagged members and includes that this PR's own removals had orphaned in EventContext, DOMException, EventListenerMap, and JSEvent.h; all were fixed in be9e388, 6bfba25, and cca5de9 (verified in the current diff — Node.h and Snippet.h includes are gone). The one new inline nit this run — the PR updated the body of the uncalled EventPath(const Vector<EventTarget*>&) constructor to fit the new EventContext signature instead of deleting it, and isEmpty()/size() plus a stale buildPath comment survive — is pre-existing dead code with zero behavioral effect and doesn't need to block. The pattern matches recently-merged #36474.
…dits EventPath(const Vector<EventTarget*>&) had zero callers (the sole construction site in EventTarget::dispatchEvent passes EventTarget&); the earlier EventContext signature change forced an edit to its body instead of a caller check. isEmpty()/size() likewise had zero external callers. Dropped the stale buildPath reference from the composedPath comment.
EventListenerMap.{h,cpp}: class EventTarget; / #include "EventTarget.h" were
only for the removed copyEventListenersNotCreatedFromMarkupToTarget.
DOMJITHelpers.h: #include "Node.h" was only for the removed WebCore::DOMJIT
branchIfNode helpers. IDLTypes.h: IDLSerializedScriptValue<T> was only
consumed by the Converter<>/JSConverter<> specializations now stubbed out.
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LGTM — all five prior review rounds are addressed/resolved, and the author's decision to cap the include sweep at 1752533 (declining the optional Event.h cleanups) is reasonable given they were explicitly framed as take-or-leave and none affect behavior.
What was reviewed:
- Spot-checked the ErrorCode overload removals:
CRYPTO_JWK_UNSUPPORTED_CURVEsole caller passes two args so binds to the surviving(ASCIILiteral, const char*);INVALID_FILE_URL_HOSTASCIILiteraloverload was never header-declared so BunObject.cpp callers already bound to theString&overload. closedShadowDepth()changing from constant0tom_closedShadowDepthis behavior-preserving — the soleEventContextconstruction site passes0.EventContextlayout shrink is safe (only stored by-value inEventPath::m_path, no external ABI).
Extended reasoning...
Overview
This PR removes ~774 net LOC of provably-dead C++ from src/jsc/bindings/ and src/jsc/bindings/webcore/ across 28 files: whole-file stubs for DOMJITCheckDOM.h / DOMJITHelpers.cpp / JSEventDOMJIT.cpp / JSDOMConvertSerializedScriptValue.h, the entire WebCore::DOMJIT namespace body from DOMJITHelpers.h, the WebKit shadow-tree/touch scaffolding from EventContext/EventPath/EventListenerMap, unreferenced ErrorCode.cpp overloads, and assorted never-defined/never-called declarations in DOMException, CookieMap, DOMFormData, JSCommonJSModule, ImportMetaObject, Cookie, Sink, and ProcessBindingTTYWrap. A source-lint test guards against reintroduction.
Security risks
None. Pure dead-code removal; nothing added and no control-flow changes on live paths. The only accessor whose body changed is EventContext::closedShadowDepth(), and its sole construction site guarantees the returned value is unchanged (0).
Level of scrutiny
Medium — 28 files touched, but every change is subtractive and mechanically verifiable: each removed symbol was grepped to zero callers across src/ + codegen, and the debug/release/ASAN build linking cleanly is the definitive check that nothing removed was actually referenced. The subtle cases (C++ overload resolution for the three ErrorCode.cpp overload removals) I re-verified directly against call sites; the PR description's claims are correct, and a wrong claim there would have broken the build anyway.
Other factors
I've already reviewed this PR across five rounds of orphaned-include/member cleanup, all resolved with fix commits (be9e388, 6bfba25, cca5de9, d89065f, 8fc0aeb, 1752533). My sixth round was explicitly optional and the author's rationale for capping scope (redundant transitive include; pre-existing rather than PR-orphaned; narrowing rather than deletion) is sound. The evidence gate passed on both ASAN and release; CI on 1752533 shows only pre-existing/flaky failures unrelated to this diff. The bug-hunting system found nothing this run. Nothing remains that warrants human review.
| // Empty: IDLSerializedScriptValue<> was never instantiated. Stub kept for the verification harness. | ||
| #pragma once |
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🟡 Two of the four 75c651e stubs survive with now-stale rationales after the post-175253311d cleanup: this file's comment "Stub kept for the verification harness" references the source-lint test that b877597 deleted, and nothing includes it (JSDOMConvert.h dropped the #include) — its sibling stubs DOMJITCheckDOM.h (748e999) and JSEventDOMJIT.cpp (5488c1d) with the same origin were re-deleted, this one was missed. Same inconsistency at webcore/DOMJITHelpers.cpp:2: "Kept so unified-source bundles don't shift" is contradicted by 5488c1d deleting JSEventDOMJIT.cpp from the same directory, which per scripts/build/unified.ts (sort-by-basename → chunk into 8/32) already shifts webcore bundle composition — so either delete it too or correct the comment. Nit — no behavior change; not covered by any of the six prior rounds (all of which predate the test deletion).
Extended reasoning...
What is left behind
Commit 75c651e converted four deleted files into stubs "for verification-harness compatibility" (the source-lint test read them) with the commit body noting "the .cpp stubs also keep unified-source bundle bucketing stable across the diff". After the author capped the include sweep at 1752533, three follow-up commits landed: b877597 deleted the source-lint test itself, then 748e999 and 5488c1d re-deleted two of the four stubs (DOMJITCheckDOM.h, JSEventDOMJIT.cpp). The other two stubs remain, and both now carry rationales that those three commits invalidated.
src/jsc/bindings/webcore/JSDOMConvertSerializedScriptValue.h — the entire file is:
// Empty: IDLSerializedScriptValue<> was never instantiated. Stub kept for the verification harness.
#pragma onceThe "verification harness" is test/internal/source-lints/dead-symbols-domjit-eventpath-errorcode.test.ts, which b877597 deleted. rg 'JSDOMConvertSerializedScriptValue' src/ returns zero hits — this PR itself removed the only #include from JSDOMConvert.h. The unified-source rationale that keeps DOMJITHelpers.cpp (below) does not apply to headers, so this file has no remaining reason to exist that its two re-deleted siblings didn't share.
src/jsc/bindings/webcore/DOMJITHelpers.cpp — reduced to:
#include "config.h"
// Empty: DOMJITHelpers.cpp was dead. Kept so unified-source bundles don't shift.Per scripts/build/unified.ts:18,178-179,208, webcore/ .cpp files are sorted by basename and chunked into bundles of 8 (debug) / 32 (release), so removing one shifts every alphabetically-later file's bundle assignment. Commit 5488c1d deleted JSEventDOMJIT.cpp — same directory, alphabetically after DOMJITHelpers — which already shifts webcore bundle composition. The comment's stated rationale is therefore contradicted by the PR's own diff: bundles have shifted regardless. unified.ts:29-30 explicitly documents the project stance as "When bundle composition shifts (file added/removed), the missing include surfaces. Fix the include; don't reorder bundles" — i.e. preventing shifts is best-effort, not a hard invariant.
Step-by-step: the .h stub's rationale is stale, the .cpp stub's rationale is self-contradicted
- 75c651e stubbed four files:
DOMJITCheckDOM.h,DOMJITHelpers.cpp,JSDOMConvertSerializedScriptValue.h,JSEventDOMJIT.cpp. The two headers got "Stub kept for the verification harness"; the two .cpp files were kept for unified-source bundle stability. - b877597 deleted
test/internal/source-lints/dead-symbols-domjit-eventpath-errorcode.test.ts— the only "verification harness" that read those stubs. - 748e999 re-deleted
DOMJITCheckDOM.h(the header stub whose rationale step 2 voided).JSDOMConvertSerializedScriptValue.h— same rationale, same voiding — was not touched. - 5488c1d re-deleted
JSEventDOMJIT.cppoutright (not stubbed). Sincescripts/build/unified.tssorts webcore .cpp files by basename and chunks them, removingJSEventDOMJIT.cppshifts bundle composition for every file after 'J'.DOMJITHelpers.cpp's comment claims to prevent exactly that shift — but the shift has now happened anyway. - Result: two identically-situated pairs got opposite treatment — one member of each pair was deleted, the other left behind with a comment that steps 2–4 made inaccurate.
Why nothing else prevents it
These are two-line stubs with no callers, no includers (for the header — verified via rg), and no source-lint guard (the test that would have caught divergence was deleted). The PR description still lists all four files under "Whole files deleted" and still references the deleted source-lint test under "Verification", so the description doesn't reflect the post-b877597a state either. None of the six prior review rounds cover this — they all landed before b877597/748e9992/5488c1d1 and addressed EventContext/EventPath/EventListenerMap/DOMException/JSEvent members and includes, not the 75c651e stub set.
Impact and fix
No runtime behavior change; nit. Per REVIEW.md "delete dead code in the same PR that makes it dead" and "comments carry only durable non-obvious content":
- Delete
JSDOMConvertSerializedScriptValue.h(matchingDOMJITCheckDOM.h's treatment in 748e999). - Either delete
DOMJITHelpers.cpp(matchingJSEventDOMJIT.cpp's treatment in 5488c1d — bundle-shift is already accepted) or correct its comment to something durable.
Side note: the last CI-green claim in the timeline ("CI are green on 1752533") and the gate output ("bun test v1.4.0-canary.1 (8fc0aeb)") both predate 5488c1d, so the bundle shift from deleting JSEventDOMJIT.cpp hasn't been demonstrated CI-green in the PR's own evidence — likely fine given unified.ts:29-30, but worth a build check if either stub is deleted.
2 participants
Removes 741 net LOC of unreferenced C++ from
src/jsc/bindings/andsrc/jsc/bindings/webcore/. Every symbol was verified to have zero callers acrosssrc/andbuild/debug/codegen/, and the full debug build links cleanly.No overlap with any open dead-code PR (#35437, #35559, #35775, #35880, #36115, #36178, #36237, #36318, #36621, #36742).
Whole files deleted
webcore/DOMJITCheckDOM.h(98 LOC): only includer wasJSEventDOMJIT.cppwebcore/JSEventDOMJIT.cpp(43 LOC): definedcheckSubClassSnippetForJSEvent, whose sole reference inJSEvent.cpp:242was behind#if 0(nullptr used instead)webcore/DOMJITHelpers.cpp(57 LOC): every function body was already commented out; compiled to an empty namespacewebcore/JSDOMConvertSerializedScriptValue.h(50 LOC): only includer was theJSDOMConvert.humbrella;IDLSerializedScriptValue<>was never instantiated anywherewebcore/DOMJITHelpers.h
Removed the entire
WebCore::DOMJITnamespace body (~184 LOC:branchIf*,toWrapper,tryLookUpWrapperCache,operationToJSNode/operationToJSContainerNodedeclarations, and ~60 LOC of commented-out helpers). All 7 remaining includers (generate-classes.tsoutput,JSBuffer.cpp,JSPerformance.cpp,JSTextEncoder.cpp,JSFFIFunction.cpp,JSSQLStatement.cpp,ZigGeneratedCode.cpp) use onlyJSC::DOMJIT::*from JavaScriptCore headers, neverWebCore::DOMJIT::*. The transitive#includes are kept.webcore/EventContext.{h,cpp}
Removed
handleLocalEvents,node(),relatedTarget(),setRelatedTarget,isMouseOrFocusEventContext,isTouchEventContext,isWindowContext,isUnreachableNode, the(Type, Node&, ...)constructor overload, theTypeenum andm_typefield,m_relatedTarget,m_contextNodeIsFormElement, and allTOUCH_EVENTS/ commented-out blocks. OnlycurrentTarget()/closedShadowDepth()/target()are reachable (viaEventPath::computePathUnclosedToTarget).webcore/EventPath.{h,cpp}
Removed the empty
EventPath(Node&, Event&)constructor,contextAt,eventTargetRespectingTargetRules, thebuildPath/setRelatedTargetdeclarations (never defined), theTouchforward decl andTOUCH_EVENTSblock.webcore/EventListenerMap.{h,cpp}
Removed
removeFirstEventListenerCreatedFromMarkup,copyEventListenersNotCreatedFromMarkupToTarget, and their file-local static helpers. WebKit markup-listener transfer helpers with zero callers in Bun.ErrorCode.{h,cpp}
Bun::toJS(JSGlobalObject*, ErrorCode): declared, never defined, never calledINVALID_FILE_URL_HOST(..., const ASCIILiteral)overload: not declared in the header, so the two call sites inBunObject.cppbind to theconst WTF::String&overloadCRYPTO_JWK_UNSUPPORTED_CURVE(..., const WTF::String&)overload: the only call site inKeyObject.cpppasses(ASCIILiteral, const char*), matching the other overloadMessage::ERR_INVALID_ARG_TYPE(..., const ZigString*, const ZigString*, JSValue)overload: zero callersDOMException.{h,cpp}
Removed
create(const Exception&)(zero callers) and the staticname(ExceptionCode)/message(ExceptionCode)helpers (zero callers;description(ec).nameis used directly where needed).CookieMap.{h,cpp}
Removed
struct CookieStoreGetOptions(zero references),getAll()(not in theJSCookieMapprototype table;toJSON()enumerates directly), and the privateCookieMap(Vector<Ref<Cookie>>&&)constructor (zeroadoptRefsites use it).DOMFormData.{h,cpp}
Removed
clone(); zero callers.Single-line declarations
Cookie.h:isValidCookieValue(declared, never defined; the trailing comment already said "this isn't needed")ImportMetaObject.h:createRequireFunction(declared, never defined)JSCommonJSModule.h:setSourceCode(declared, never defined),clearSourceCode,idOrDotSink.h:numberOfSinkIDsconstexprProcessBindingTTYWrap.cpp: duplicate forward declaration ofProcess_functionInternalGetWindowSize(already declared viaJSC_DECLARE_HOST_FUNCTIONin the header)Also scanned, nothing confidently dead
src/http/,src/ast/,src/semver/,src/event_loop/,src/bun_core/,src/threading/,src/runtime/bake/dev_server/,src/js/thirdparty/. All recently swept and clean.Intentionally not touched (possible followups)
InspectorHTTPServerAgent::{requestWillBeSent,responseReceived,bodyChunkReceived,requestFinished,requestHandlerException}andInspectorBunFrontendDevServerAgent::{clientErrorReported,graphUpdate}: look like in-progress inspector scaffolding with matching Rust-side extern declarations; left alonewebcore/streams/CrossRealmTransform.cppstubs: explicitly documented as frozen-ABI placeholders for transferable streamsJSEventListener::wasCreatedFromMarkup()andm_wasCreatedFromMarkup: now the only readers are gone, but removing the bitfield changes class layout; left for a separate passwebcore/ResourceLoadTiming.h: only includers areResourceTiming.{h,cpp}which Remove dead code from webcore HTTP/timing C++ and install::dependency #36621 modifies; avoided to prevent merge conflictsVerification
rg -w <symbol> src/ build/debug/codegen/returned only the definition for every removed itembun bdbuilds and linkstest/js/bun/cookie/cookie-map.test.ts,test/js/bun/globals.test.js,test/js/web/abort/abort.test.ts,test/js/web/fetch/body.test.ts -t FormDataall passtest/internal/source-lints/dead-symbols-domjit-eventpath-errorcode.test.tsasserts the removed symbols do not reappear[review] gate passed · iteration 4 · 29 files touched
fails on main (without fix)
passes on PR (with fix)
diff hotspot
gate history · 5 passed · 2 rejected · iteration 4
evidence per changed file