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Title: Add opt-in tracing hooks for JS bridge by kateinoigakukun · Pull Request #548 · swiftwasm/JavaScriptKit · GitHub

Open Graph Title: Add opt-in tracing hooks for JS bridge by kateinoigakukun · Pull Request #548 · swiftwasm/JavaScriptKit

X Title: Add opt-in tracing hooks for JS bridge by kateinoigakukun · Pull Request #548 · swiftwasm/JavaScriptKit

Description: Motivation: Add opt-in tracing hooks so developers can see Swift<->JS bridge crossings without shipping extra overhead. Overview: Gate tracing with the Tracing trait in the Swift 6.2+ manifest; ...

Open Graph Description: Motivation: Add opt-in tracing hooks so developers can see Swift<->JS bridge crossings without shipping extra overhead. Overview: Gate tracing with the Tracing trait in the Swift 6.2+ mani...

X Description: Motivation: Add opt-in tracing hooks so developers can see Swift&lt;-&gt;JS bridge crossings without shipping extra overhead. Overview: Gate tracing with the Tracing trait in the Swift 6...

Opengraph URL: https://github.com/swiftwasm/JavaScriptKit/pull/548

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Domain: github.com

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January 29, 2026 15:21https://github.com/swiftwasm/JavaScriptKit/pull/548#event-22380136964
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January 30, 2026 16:35https://github.com/swiftwasm/JavaScriptKit/pull/548#commits-pushed-afad884
https://github.com/kateinoigakukun
Built an opt-in tracing surface and wired it through the bridge when …https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/afad884a66547d53710a198ac056966246c94042
afad884https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/afad884a66547d53710a198ac056966246c94042
https://github.com/kateinoigakukun
Applied the review feedback: hooked tracing to the “Tracing” trait an…https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/56a18d72bcd90888a937bd03769ab583d25c9d09
56a18d7https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/56a18d72bcd90888a937bd03769ab583d25c9d09
https://github.com/kateinoigakukun
Added tracing unit coverage and wired the trait into the Makefile’s `…https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/f3448a3668653c48fdb1d0e0aa7a482386ede59a
f3448a3https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/f3448a3668653c48fdb1d0e0aa7a482386ede59a
https://github.com/kateinoigakukun
Add Swift 6.2 manifest and trait opt-outhttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/bc73c8629d25b592416cf2c09229b4a811b92844
bc73c86https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/bc73c8629d25b592416cf2c09229b4a811b92844
https://github.com/kateinoigakukun
Add Swift 6.2 manifest with tracing traithttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/8cb14ee45c00dd8eb90793b0d0ae321de5cbae47
8cb14eehttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/8cb14ee45c00dd8eb90793b0d0ae321de5cbae47
https://github.com/kateinoigakukun
Make tracing trait opt-out via env onlyhttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/362af79400c0544f24f1b3d1f137a670b9655cb5
362af79https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/362af79400c0544f24f1b3d1f137a670b9655cb5
https://github.com/kateinoigakukun
Add option to disable tracing trait in JavaScriptKit testshttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/7f29f4c6144d79328e5cb0a7e1e0c3986e13f3c8
7f29f4chttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/7f29f4c6144d79328e5cb0a7e1e0c3986e13f3c8
https://github.com/kateinoigakukun
Revert changes in Package.swifthttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/c3825bfb36a90dd397b08f9492180f0942af6b44
c3825bfhttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/c3825bfb36a90dd397b08f9492180f0942af6b44
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5ed8692https://github.com/swiftwasm/JavaScriptKit/commit/5ed86928c97326d69a9a0b159e93823e4149358b
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January 30, 2026 08:32https://github.com/swiftwasm/JavaScriptKit/pull/548#event-22400900874
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Remove metadata fields from non-tracing buildshttps://github.com/swiftwasm/JavaScriptKit/pull/548/commits/2804274bef5114dbdcc458aec27ea6410ef9677f
2804274https://github.com/swiftwasm/JavaScriptKit/pull/548/commits/2804274bef5114dbdcc458aec27ea6410ef9677f
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Jan 30, 2026https://github.com/swiftwasm/JavaScriptKit/pull/548#event-22402063415
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January 30, 2026 09:24https://github.com/swiftwasm/JavaScriptKit/pull/548#event-22402063912
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Jan 30, 2026 https://github.com/swiftwasm/JavaScriptKit/pull/548#ref-issue-3868859346
Opt-in Call Tracing Mode #547 https://github.com/swiftwasm/JavaScriptKit/issues/547
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