[Tcl-bugs] [ tcl-Bugs-3599017 ] trace that unsets and then sets and array

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Bugs item #3599017, was opened at 2012-12-31 08:19
Message generated for change (Tracker Item Submitted) made by pooryorick
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Category: 46. Traces
Group: current: 8.6.0
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Poor Yorick (pooryorick)
Assigned to: Don Porter (dgp)
Summary: trace that unsets and then sets and array

Initial Comment:
In the following example, the asnwer to [info exists ::var1] is "1", but the answer to [info exists var2(1)] is "0".  Is this not inconsistent?

set ::var1 [list 1 v1]
trace add variable ::var1 {read} ::trace1
proc trace1 { args } {
	unset ::var1
	set ::var1 [list 1 v1]
}
puts [info exists ::var1]

array set ::var2 [list 1 v1]
trace add variable ::var2 {read} ::trace2
proc trace2 { args } {
	array unset ::var2
	array set ::var2 [list 1 v1]
}

puts [info exists ::var2(1)]




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You can respond by visiting: 
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