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[perl #123223] Bleadperl v5.21.5-396-ga635561 breaks Test::LeakTrace

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Father Chrysostomos
November 17, 2014 00:49
[perl #123223] Bleadperl v5.21.5-396-ga635561 breaks Test::LeakTrace
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SVs_OBJECT now has a meaning on pad names, other than its meaning elsewhere.

Test::LeakTrace allows a leaked scalar (even a pad name) to be passed to user code.  And that allows pad names to reach all sorts of code paths that would not reach under usual circumstances.

I don’t want to break Test::LeakTrace, since it is an extremely useful module that I have even used to track down core bugs.

I could change the definition of SvOBJECT, and have it check the pad name flags, too.  But that would make all uses of SvOBJECT slightly slower.  I wouldn’t mind doing that, though, if there were no other obvious solution.

For me, the obvious fix is to separate pad names from SVs.  I have talked about this several times in the past, but never actually gotten to it.  I think it needs to be done anyway, because the conflation makes both pad names and SVs more complex than they need to be.

I have outlined how the pad names could be done in <;>.

Father Chrysostomos

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