521380 - "ASSERTION: pseudo type mismatch" with :first-line, :after

Status: NEW

(Core :: CSS Parsing and Computation, defect)

Description

[Jesse Ruderman]

Attachment: testcase

###!!! ASSERTION: Wrong parent style context: 'Error', file /Users/jruderman/central/layout/base/nsFrameManager.cpp, line 844
Wrong parent style context:  style: 0x1640098 :first-line {}
should be using:  style: 0x163fc28 {}

###!!! ASSERTION: pseudo type mismatch: 'aOldStyleContext->HasPseudoElementData() == aNewStyleContext->HasPseudoElementData()', file /Users/jruderman/central/layout/style/nsTransitionManager.cpp, line 356

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I could imagine the first assertion leading to the second.

Comment 2

[Timothy Nikkel (:tnikkel)]

I couldn't reproduce in Linux debug builds from early September, mid October, or current mozilla-central; or 1.9.2, or 1.9.1.

Comment 3

[Jesse Ruderman]

Still happens for me on Mac (mozilla-central).

Comment 4

[Timothy Nikkel (:tnikkel)]

Hmmm, weird, I can reproduce but only when loading the testcase from bugzilla, not from a local file.

Comment 5

[Jesse Ruderman]

Still happens on mozilla-central and seems to lead to other assertions in some cases.