> On Apr 30, 2015, at 12:09 PM, Joshua Cranmer 🐧 <pidgeo...@gmail.com> wrote: > > do_QueryInterface is the equivalent of a type-checked downcast, e.g. > (ClassName)foo in Java. (Regular C++ downcasts are not dynamically > type-checked).
do_QueryInterface is, in other words, essentially equivalent to dynamic_cast in C++, except that because it’s implemented manually people can do strange things if they want to. They almost never do, though, so dynamic_cast is a pretty good mental model. - Seth _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
