Wait for a resume event to run the main() method after a page refresh
#2431
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nshahan
approved these changes
May 14, 2024
| readyToRunMainCompleter, | ||
| ); | ||
| } else { | ||
| // Otherwise, we can run the app's main() method immediately. |
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Are there specific configurations where we want this or is this just a backwards compatible fallback to what we did previously?
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This is just backwards compatible fallback - all debugging clients should be setting the pauseIsolatesOnStart flag
| _resumeAfterHotRestartEventsController.stream; | ||
| /// IMPORTANT: This should only be listened to during a hot-restart or page | ||
| /// refresh. The debugger ignores any resume events as long as there is a | ||
| /// subscriber to this stream. |
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Does this mean the debugger listens and cancels the listener after for every refresh event? I don't have any problem with that, I'm just asking if I understand this correctly.
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Yep, exactly - the stream is listened to only for the duration of the page refresh
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Revisions updated by `dart tools/rev_sdk_deps.dart`. async (https://github.com/dart-lang/async/compare/09cba7f..77a25d7): 77a25d7 2024-05-15 Sarah Zakarias Add `topics` to `pubspec.yaml` (dart-archive/async#274) dartdoc (https://github.com/dart-lang/dartdoc/compare/2e706be..476d5cc): 476d5cc8 2024-05-16 Sam Rawlins Refactor PackageGraph._tagReexportsFor and document (dart-lang/dartdoc#3772) 24658cca 2024-05-14 Sam Rawlins Privatize CommentReferenceParser._codeRef (dart-lang/dartdoc#3771) dff86ed9 2024-05-14 Sam Rawlins Bump to 8.0.9 (dart-lang/dartdoc#3770) http (https://github.com/dart-lang/http/compare/4722e03..76deb75): 76deb75 2024-05-16 Hossein Yousefi [cronet_http] Upgrade jni to 0.9.2 and publish 1.2.1 (dart-lang/http#1198) ec55561 2024-05-15 Brian Quinlan [cronet] Use the same host and Android emulator architecture. (dart-lang/http#1201) lints (https://github.com/dart-lang/lints/compare/f0205c1..b254c7e): b254c7e 2024-05-16 Devon Carew Update README.md (dart-lang/lints#189) 5fef508 2024-05-13 Lasse R.H. Nielsen Tighten up the `gen_docs.dart` script. (dart-lang/lints#187) test (https://github.com/dart-lang/test/compare/84d2a2b..2464ad5): 2464ad5c 2024-05-16 Sarah Zakarias Add `topics` to package "test" `pubspec.yaml` (dart-lang/test#2230) 6540a360 2024-05-15 dependabot[bot] Bump the github-actions group across 1 directory with 3 updates (dart-lang/test#2229) 4b6f029c 2024-05-15 dependabot[bot] Bump dart_flutter_team_lints from 2.1.1 to ^3.0.0 in all packages (dart-lang/test#2228) webdev (https://github.com/dart-lang/webdev/compare/d46cf50..fc32eb6): fc32eb69 2024-05-14 Elliott Brooks Collect log message count and log at the end (dart-lang/webdev#2430) 99abc535 2024-05-14 Elliott Brooks Wait for a `resume` event to run the `main()` method after a page refresh (dart-lang/webdev#2431) Change-Id: Iee28bacfc028c92e4b59d95f0c7e61f8282d2968 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/366980 Auto-Submit: Devon Carew <[email protected]> Commit-Queue: Konstantin Shcheglov <[email protected]> Reviewed-by: Konstantin Shcheglov <[email protected]>
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I was putting together a doc about the many places we wait for a
resumeevent after either a hot-restart or a page-refresh whenpauseIsolatesOnStartistrue, and realized that I had missed waiting for theresumeevent for page refreshes when running an app withflutter_tools.I then realized that the solution implemented for waiting for a
resumeevent after a page-refresh for internal apps (#2398 and cl/626138927) could be modified to work for bothflutter_toolsand internal apps. These modifications are in this PR.Before this change:
shouldPauseIsolatesOnStartwhich could be called by a client (flutter_tools, DDR) to determine whether or not to immediately call DWDS'runMainmethod after an app connection eventWith this change:
runMainmethod after an app connection eventrunMainwaits for the_readyToRunMainFuture before running the app'smain()method_readyToRunMainFuture is resolved once DWDS receives aresumeeventWork towards flutter/devtools#7231
Requires cl/632610137 to be submitted as well