Re: variable declarations shadowing named properties on window

This archive was generated by hypermail 2.3.1 : Wednesday, 8 May 2013 19:30:05 UTC

Cameron McCormack:
> Right, I don't think either of my proposals Travis quoted will work now,
> due to this bareword lookup problem.

I might be a bit wrong here.  I forgot that [[HasProperty]] uses 
[[GetProperty]] to determine if there is a property on that object or on 
its prototype chain.  That means, if my reading of the spec is right, 
the following document

   <!DOCTYPE html>
   <script>var toString; alert(toString)</script>

should alert String(Object.prototype.toString) and not "undefined". 
Firefox, Opera and IE alert "undefined".  Chrome/Safari alert the function.

So I don't know that we can make `var something;` shadow any properties 
without violating the ECMAScript spec.