385289 - Lots of assertions in gfxFont.cpp about cluster boundaries with <math:msub> and unicode combining character

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Jesse Ruderman]

Attachment: testcase

###!!! ASSERTION: BreakAndMeasureText called, not ending at cluster boundary: 'aStart + aMaxLength == mCharacterCount || charGlyphs[aStart + aMaxLength].IsClusterStart()', file /Users/jruderman/trunk/mozilla/gfx/thebes/src/gfxFont.cpp, line 1209

###!!! ASSERTION: Ended in the middle of a cluster...: '*aEnd == mCharacterCount || charGlyphs[*aEnd].IsClusterStart()', file /Users/jruderman/trunk/mozilla/gfx/thebes/src/gfxFont.cpp, line 860

etc.

Comment 1

[Jesse Ruderman]

Attachment: testcase without tables

Comment 2

[Jesse Ruderman]

I also see this assertion in plenty of testcases without MathML, btw.

Comment 3

[Jesse Ruderman]

For example, bug 385719 triggers a lot of the same assertions.

Comment 4

[Jesse Ruderman]

Now that bug 385719 is fixed, I only get:

###!!! ASSERTION: Wrong line container hint: '!aForFrame || aLineContainer == FindLineContainer(aForFrame)', file /Users/jruderman/trunk/mozilla/layout/generic/nsTextFrameThebes.cpp, line 1080

That's probably covered by bug 385265.

Comment 5

[Jesse Ruderman]

Now that bug 385265 is fixed, I only get

###!!! ASSERTION: Computed overflow area must contain frame bounds: 'aNewSize.width == 0 || aNewSize.height == 0 || aOverflowArea->Contains(nsRect(nsPoint(0, 0), aNewSize))', file /Users/jruderman/trunk/mozilla/layout/generic/nsFrame.cpp, line 5222

which might be covered by bug 382208 or bug 367246.

Comment 6

[Jesse Ruderman]

WFM, Mac trunk debug.