ASSERTION FAILED: run->m_stop > 0 in *WebCore::RenderBlockFlow::computeInlineDirectionPositionsForSegment
https://bugs.webkit.org/show_bug.cgi?id=166030
Reviewed by Ryosuke Niwa.
Source/WebCore:
Ordinarily, we don't process empty BiDi runs (because we filter them out).
However, when using isolates, we invoke extra machinery to create a
placeholder BiDi run, and replace it with the runs for the isolate. The
isolate's runs, though, can be empty, and rather than just deleting the
placeholder run, we will keep it around so that the m_logicallyLastRun is
still valid. This means that it is possible when all is said and done to
have empty runs, and computeInlineDirectionPositionsForSegment() needs to
not ASSERT() in this case.
Test: fast/text/bidi-isolate-empty-run.html
* rendering/RenderBlockLineLayout.cpp:
(WebCore::RenderBlockFlow::computeInlineDirectionPositionsForSegment):
LayoutTests:
* fast/text/bidi-isolate-empty-run-expected.txt: Added.
* fast/text/bidi-isolate-empty-run.html: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@210601 268f45cc-cd09-0410-ab3c-d52691b4dbfc
5 files changed
