Bug 60191

Summary:

Crash in PlatformCALayer ::replaceSublayer when layer has not superlayer

Product:

WebKit

Reporter:

Chris Marrin <cmarrin>

Component:

Layout and Rendering

Assignee:

Chris Marrin <cmarrin>

Status:

RESOLVED FIXED

Severity:

Normal

Keywords:

InRadar

Priority:

Version:

528+ (Nightly build)

Hardware:

Mac

OS:

Unspecified

Attachments:

Description	Flags
Patch	simon.fraser: review+

Description Chris Marrin 2011-05-04 11:38:24 PDT

PlatformCALayer ::replaceSublayer occasionally crashes because the current layer doesn't have a superlayer. I believe this is a benign case that happens when we are restructuring the tree. But currently it crashes. I will add protection against the null pointer and see if this avoids any other problems.

Comment 1 Chris Marrin 2011-05-04 11:38:42 PDT

rdar://problem/8751147

Comment 2 Chris Marrin 2011-05-04 11:41:41 PDT

Created attachment 92290 [details]
Patch

Comment 3 Simon Fraser (smfr) 2011-05-04 11:43:38 PDT

Comment on attachment 92290 [details]
Patch

You could leave the assertion in since it would be nice to know when this happens.

Comment 4 Chris Marrin 2011-05-04 13:17:53 PDT

Committed r85781: <http://trac.webkit.org/changeset/85781>