From h.wickham at gmail.com  Mon Oct  8 15:22:06 2012
From: h.wickham at gmail.com (Hadley Wickham)
Date: Mon, 8 Oct 2012 08:22:06 -0500
Subject: [Rd] Capturing environment associated with a promise
Message-ID: <CABdHhvHGm8qABh7XWeMNCA9qLUFEf1ksJaf0NDH_xhyHK=jtpw@mail.gmail.com>

Hi all,

It's possible to capture the expression associated with a promise
(using substitute). Is there any way to capture the environment
associated with a promise?  Similarly, is there any way to tell if
something is a promise without accidentally evaluating it?

Thanks!

Hadley

-- 
RStudio / Rice University
http://had.co.nz/



[Rd] Capturing environment associated with a promise
Hadley Wickham