On Mon, Sep 29, 2014 at 4:06 PM, Allen Wirfs-Brock <[email protected]> wrote: > On Sep 29, 2014, at 1:41 PM, Jason Orendorff wrote: >> Function.prototype.apply, Function.prototype.call, and Reflect.apply >> currently call PrepareForTailCall. Is this a bug? > > No, I don't believe so. Built-ins (whether implemented in ES or native) are > specified to have an "execution context".
Oh, I see! Thanks. (This is specified in 9.3.1 [[Call]], for anyone following along.) But in this case, the spec already has some non-ECMAScript functions performing tail calls, so now I am at a loss as to what your earlier line to Brendan could mean: > I can't imagine what you would want be to try to say about non-EMCAScript > functions. Their internal "call" semantics is determined by the semantics of > their implementation language. It seems like to the full extent that the current draft manages to constrain Function.prototype.call, it could constrain bound functions too. -j _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
