610331 - "ASSERTION: Computed overflow area must contain frame bounds" with huge line height and word-wrap

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Simon Montagu :smontagu]

Attachment: Testcase

The testcase is reduced (in every sense of the word) from the testcase for bug 595435.

It asserts 4 times:
###!!! ASSERTION: Computed overflow area must contain frame bounds: 'aNewSize.width == 0 || aNewSize.height == 0 || aOverflowAreas.Overflow(otype).Contains(nsRect(nsPoint(0,0), aNewSize))', file /home/smontagu/mozwork/hgtree/mozilla/layout/generic/nsFrame.cpp, line 6103

If I reduce the line-height in the testcase to < 235519, it triggers the assertion only twice, but triggers another one twice:
###!!! ASSERTION: illegal height for combined area: 'aOverflowAreas.Overflow(otype).height >= 0', file /home/smontagu/mozwork/hgtree/mozilla/layout/generic/nsLineBox.cpp, line 504

If I reduce the line-height to < 235421, there are no assertions.

Comment 1

[Jesse Ruderman]

This bug still exists after the modification to the assertion in https://hg.mozilla.org/mozilla-central/rev/e176daacecfc

###!!! ASSERTION: Computed overflow area must contain frame bounds: 'aNewSize.width == 0 || aNewSize.height == 0 || r->width == nscoord_MAX || r->height == nscoord_MAX || r->Contains(nsRect(nsPoint(0,0), aNewSize))', file layout/generic/nsFrame.cpp

Comment 2

[Jesse Ruderman]

WFM

Comment 3

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

Maybe fixed by bug 749935?