Improve stepping between frames
Categories
(Core Graveyard :: Web Replay, enhancement)
Tracking
(firefox71 fixed)
| Tracking | Status | |
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| firefox71 | --- | fixed |
People
(Reporter: bhackett1024, Assigned: bhackett1024)
Details
Attachments
(1 file)
When paused at a location, we want to prefetch pause data for nearby points which the user can step to. The mechanism which does this is pretty crude: it only considers steps within the current frame, and doesn't consider whether the stepping points are ones which the step-over and reverse-step-over buttons will actually reach (it only looks for breakpoint positions instead of step start positions in the script). It would be nice to improve this by more carefully simulating the effects of pressing the stepping buttons. We can figure out which points the user will reach (well, probably reach, ignoring information associated with the server actors like which sources are black-boxed), and only generate pause data for those points. This avoids wasting work and allows fast stepping in and stepping out of frames. The attached patch also fixes a few issues that were slowing down stepping on jsfiddle, due to requests for information not included in the pause data.
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Assignee | |
Comment 1•5 years ago
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Pushed by bhackett@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/bd204006f2cc Improve stepping between frames, r=jlast.
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Comment 3•5 years ago
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| bugherder | ||
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Updated•4 years ago
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Description
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