forked from mirrors/gecko-dev
4341d6fb0c
Currently, checking whether an `EventTarget` is `nsINode` (or its concrete classes) or not requires a QI, but it's expensive and used a lot while we handle each event. Therefore, it'd be nicer for creating a virtual method, `EventTarget::IsNode()` and use it for the check. If trying to convert `EventTarget` to a concrete class, it may require two virtual method calls. I'm not sure whether it's cheaper than a QI, but at least, it won't depend on the UUID check order of `QueryInterface()` when multiple interfaces are implemented. Differential Revision: https://phabricator.services.mozilla.com/D129781 |
||
|---|---|---|
| .. | ||
| android | ||
| aom | ||
| atk | ||
| base | ||
| basetypes | ||
| docs | ||
| generic | ||
| html | ||
| interfaces | ||
| ipc | ||
| mac | ||
| other | ||
| tests | ||
| windows | ||
| xpcom | ||
| xul | ||
| moz.build | ||