https://bugs.webkit.org/show_bug.cgi?id=20935
i've identified a number of areas where people are writing "FIXMEs" and "TODOs" that are related to refcount inconsistency between Frame and Document. the key to the issue is, i believe, that it is necessary to increase the refcount on all member objects which are contained within an object. in Document's case, that's m_frame, m_styleSheets and many other objects. failure to observe the practice of increasing the parent's refcount when a member object is referred to results in issues such as #20403, at the very least. it _may_ be that, due to the possibility of Document* being destroyed _outside_ of the control of objects that have refs to it (Document::detach()) - that this is the _only_ circumstance where this is a problem - i damn well hope so because the design decisions that need to be taken to solve this right across the board are pretty damn tough ones. it _may_ be that the problem is isolated to Document and the interaction between Document and Frame. i've outlined enough, here, and in the above bug-report, for other people to be able to investigate this issue more thoroughly. if anyone has any questions, or requires clarification, please do contact me (direct by email). l. _______________________________________________ webkit-dev mailing list [email protected] http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
