Jason Orendorff wrote:
> On Mon, Nov 25, 2013 at 7:00 PM, Kevin Smith<zenparsing at gmail.com>  wrote:
>> >  To use Waldemar's word, I wonder if that might get obnoxious:
>> >
>> >       function(a = function(yield = function(arguments = function(eval) {})
>> >  {}) {}) {
>> >         "use strict"; /* Doh! */
>> >       }
>
> Implementation note: It is super obnoxious.

Just to confirm, not in the 
backtracking/re-lexing-based-on-parser-feedback sense, right? Just on 
the "must implement strict checks in a parse tree walker as well as 
during parsing" sense?

Duplicating strict mode implementation to be both during parsing, and 
post-processing on a parse tree, does sound bad. How bad, can you say more?

/be

Jason Orendorff wrote:

> Implementation note: It is super obnoxious.

Just to confirm, not in the 
backtracking/re-lexing-based-on-parser-feedback sense, right? Just on 
the "must implement strict checks in a parse tree walker as well as 
during parsing" sense?

Duplicating strict mode implementation to be both during parsing, and 
post-processing on a parse tree, does sound bad. How bad, can you say more?