Re: [Rd] Capturing environment associated with a promise

From: Hadley Wickham <>
Date: Tue, 09 Oct 2012 10:57:52 -0500

> Promises are an implementation detail -- we need to be able to change
> them, optimize them away, etc, so there is a limit on what we want to
> expose. Allowing a query of whether a binding is delayed or not
> should be OK but would want to think that through more carefully
> before committing to this.

Ok, thanks.


RStudio / Rice University

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