[webkit-dev] Eliminate potential null pointer dereference?

[Alexey Proskuryakov]

I noticed a number of patches going in recently that add null checks, or refactor the code under the premise of "eliminating potential null dereference". What does that mean, and why are we allowing such patches to be landed?

For example, this change doesn't look nice: <http://trac.webkit.org/changeset/114678/trunk/Source/WebCore/css/CSSStyleSelector.cpp>. We should not try to confuse ourselves with unusual for loop forms, and there is no explanation at all of why these changes are needed. No regression tests either.

- WBR, Alexey Proskuryakov