[Tcl-bugs] [ tcl-Feature Requests-709340 ] pass more data in array variable trace

[SourceForge.net <no...@so...>]

Feature Requests item #709340, was opened at 2003-03-25 21:33
Message generated for change (Settings changed) made by coldstore
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=360894&aid=709340&group_id=10894

Category: 45. Traces
Group: None
Status: Open
Resolution: None
>Priority: 3
Submitted By: Colin McCormack (coldstore)
Assigned to: miguel sofer (msofer)
Summary: pass more data in array variable trace 

Initial Comment:
Variable traces triggered on arrays are almost
completely useless - not enough information is passed
to the trace.

The attached patch sends the whole array command as the
second trace argument (usually the array element in
non-array sets, always NULL on array traces.)

Although this changes the semantics of trace, it allows
array traces to be useful for something.  One
application is providing array semantics over
directories - [array get] can be used as the equivalent
of [glob *]

Without this change, I can't imagine a use for array
variable traces.


Colin.


----------------------------------------------------------------------

Comment By: Colin McCormack (coldstore)
Date: 2005-03-28 03:36

Message:
Logged In: YES 
user_id=19214

I said ''Without this change, I can't imagine a use for
array variable traces.''.  That was too strong.

I should have said "Without this change or something like
it, I can't imagine a use for array variable traces."


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=360894&aid=709340&group_id=10894