I went back to this old es-discuss thread: http://www.mail-archive.com/es-discuss@mozilla.org/msg18408.html
which references a video segment from Mark Miller: http://www.youtube.com/watch?v=Kq4FpMe6cRs&t=42m53s giving four static scoping violations: 1. implicit global variable creation 2. `with` 3. `delete`ing free variables 4. `eval` introducing local bindings 2 and 4 make perfect sense, but I don't understand how 1 and 3 interfere with static scoping. In particular, given a language with no `with` and with ES5-strict semantics for `eval`, I was unable to contrive scenarios where implicit global variable creation or `delete`ing a free variable introduced an ambiguity in the scope chain that prevented static knowledge of what an identifier referred to. Does anyone have any idea how 1 and 3 interfere with static scoping? _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
