On Wed, 17 Aug 2011 10:38:43 -0700 John J Barton <[email protected]> wrote:
> On Wed, Aug 17, 2011 at 9:14 AM, Juriy Zaytsev <[email protected]> > wrote: > > What do you mean by "clean scope"? All scope chains have at least > > global scope in them. Is that what "clean scope" chain would be — > > the one including global scope only? That's pretty much what > > `Function` constructor does. > > No, I mean a scope with JavaScript built-ins only, no 'host' > functions, no |window| properties. > > function walkTheWalk(position) { > "use empty"; > var from = parent.location; // error, should have said > position.parent, but it works?!? > } There really isn't a nice way to do this. I don't think that using function constructors or eval improve things in any way. Perhaps a lint program could be modified to detect this? You could use a "use ..." prologue to indicate to the linter that this is desired. Douglas Crockford's JSLint contains a full blown parser and could probably be modified to do this fairly easily. -- Andrew Oakley _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
