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Use track-widget-creation transformer included in the sdk. #8994
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This CL depends on https://dart-review.googlesource.com/c/sdk/+/102920 |
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This CL won't pass until the matching dart-sdk change has landed first. |
askeksa-google
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May 18, 2019
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This improves performance as the version in the SDK is able to work more incrementally and avoids creating an expensive ClassHierarchy. There is now no measureable performance difference with the option so the kernel transformer can be enabled by default.
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This was referenced May 22, 2019
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@terrylucas any updates here? |
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Finally, 1.6.3 of Flutter has the dart-sdk track-widget-creation checkin. Was able to apply this CL, successfully compile, Flutter run launches with --track-widget-creation (by default) and DevTools inspector works. Awaiting Travis test passes and will apply CL (minor change DEPS reverted, Dart-sdk SHA was updated). |
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I have committed this CL (see #9085) patched in Jacob's original with a few minor changes DEPS (used tip dart-sdk SHA) and a merge conflict in frontend_server/lib/server.dart |
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This improves performance as the version in the SDK is able to work more
incrementally and avoids creating an expensive ClassHierarchy.
There is now no measureable performance difference with the option so the
kernel transformer can be enabled by default.
Test output results:
flutter test04:06 +4043 ~86:
flutter test --track-widget-creation04:06 +4051 ~78: