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upvrar in namespace

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caesar
Mint Rubber

Joined: 14 Oct 2001
Posts: 3741
Location: Mint Factory

Posted: Thu Jun 16, 2016 7:17 am Post subject: upvrar in namespace

Why can't use upvar on a variable that is defined outside the proc that is in a namespace?

I tried something like:

Code:

namespace eval blah {
set foo 1
proc moo {x} {
upvar #0 $x var
puts $var
}
}

and other ways but all fail. From what I read a upvar #0 should be the equivalent of a global call but that fails as well, meaning the var variable isn't created.

If I take the code outside the namespace then it's working as expected. What am I doing wrong?
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