<meta charset="utf-8"><div class="gmail_quote"><br class="Apple-interchange-newline">On Thu, Jul 22, 2010 at 4:58 AM, Robby Findler <span dir="ltr"><<a href="mailto:robby@eecs.northwestern.edu">robby@eecs.northwestern.edu</a>></span> wrote:<br>
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The way the contract system creates the wrappers is a bit subtle. In<br>general, it needs to create at least one wrapper object per module<br>that uses the procedure so it tries to create at most one as well, but<br>in the REPL it cannot do that, so it creates one wrapper per use of<br>
the variable. (The reason it needs at least one per module that uses<br>the procedure is for proper blame assignment. If two modules, say A<br>and B, both use the contracted function, then either module might be<br>blamed, so one wrapper function has an "A" somewhere inside the other<br>
has a "B".)<br><br></blockquote></div><div><br></div><div>Ah I see why they do not eq each other now. This is indeed quite subtle. My thought has always been that the exported contract function in module A is the same exported contract function in module B, and they magically know where they are being invoked, instead of having two separate wrappers. </div>
<div><br></div><div>Thanks for the explanation Robby. I will see what I can do with this. </div><div><br></div><div>Cheers,</div><div>yc</div><div><br></div>