On Nov 9, 2011, at 3:48 PM, Axel Rauschmayer wrote: >>> Or are there other plans to get it solved? I would still love to see that >>> happen, it’s a remarkably subtle source of errors. Could functions adopt >>> the block-lambda semantics of picking up the `this` of the surrounding >>> scope when not invoked as methods? It seems like that could work in strict >>> mode where no one expects `this` to have a value. >> >> No, if you call such functions via object.method() references then this >> binds to object. You can't break such compatibility only at runtime, and >> only some of the time. > > Got it. I’m assuming that’s a performance issue?
You could say that. If we inherit by default but it's a "soft binding", then the inner function has to carry that reference with it, but in a way that can be overridden. We talked about lexical this for functions long ago (Jan. 2008? at Google anyway) and IIRC Mark found a subtler flaw. /be _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
