Contact emails [email protected], [email protected]
Explainer None Specification None Summary Allow attaching information about which functions should be eager parsed & compiled in JavaScript files. The information will be encoded as magic comments. We'll be experimenting with different magic comment formats, e.g., marking all functions in a file for eager compilation, or marking only a subset of functions. For more information, see this doc <https://docs.google.com/document/d/19xTAM4A75tz0xUq_velMzGA4JHEgXpyflUxXTcuNiyE/edit?usp=sharing> . Blink component Blink>JavaScript <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EJavaScript> TAG review None TAG review status Pending Risks Interoperability and Compatibility No interoperability / compatibility risks. Other browsers are likely to ignore the hints if they perceive they cannot benefit from them. Ignoring the hint is allowed behavior. We plan to make the hints generic though, so that other browsers can later start to support them too. Gecko: N/A; we've requested the position at https://github.com/mozilla/standards-positions/issues/780 . Note that there's no interop risk. WebKit: N/A; we've requested the position at https://github.com/WebKit/standards-positions/issues/172 . Note that there's no interop risk. Web developers: Positive signals from partners who want to use compile hints to eager-compile core JS files Other signals: WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? None Goals for experimentation We’re aiming to OT those hints to get a better understanding about 1. The overall performance wins possible 2. DevX and tool support needed to support adding compile hints magic Ongoing technical constraints None Debuggability None Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)? Yes Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ? No The feature doesn't trigger any functional changes and cannot be tested by WPT. Flag name --js-flags=--compile-hints-magic or --enable-features=CompileHintsMagic Requires code in //chrome? False Estimated milestones OriginTrial desktop last 117 OriginTrial desktop first 114 Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5100466238652416 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- Google Germany GmbH Erika-Mann-Straße 33 80636 München Geschäftsführer: Paul Manicle, Liana Sebastian. Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg Diese E-Mail ist vertraulich. Falls sie diese fälschlicherweise erhalten haben sollten, leiten Sie diese bitte nicht an jemand anderes weiter, löschen Sie alle Kopien und Anhänge davon und lassen Sie mich bitte wissen, dass die E-Mail an die falsche Person gesendet wurde. This e-mail is confidential. If you received this communication by mistake, please don't forward it to anyone else, please erase all copies and attachments, and please let me know that it has gone to the wrong person. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAED6dUDFRVTkCYDBkw-ZTSUr-0dyNfkGvuGgzwom1fW248axGg%40mail.gmail.com.
