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It is no longer in use, as of two commits ago.
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I just couldn’t resist using the backslash for the character, even
though I had to tweak mg_vtable.pl to make it work.
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This prevents perl recursing infinitely when an overloaded object is
assigned to $DB::single, $DB::trace or $DB::signal
This is done by referencing their values as IVs instead of as SVs in
dbstate, and by adding magic to those variables so that assignments to
the scalars update the PL_DBcontrol array.
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This will be used for storing the prototype CV of a ‘my’ sub. The
clone needs to occupy the pad entry so that padcv ops will be able to
find it. That means the clone has to displace its prototype. In case
the same sub is called recursively, we still need to be able to access
the prototype.
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I’m running out of synonyms for ‘remove’.
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How ironic! Overloading is called ‘A’ magic internally all over the
place, because of the letter used as its magic type. But now it does
not even use that magic.
I left a comment in mg_vtable.pl, so that future maintainers will have
some clue as to what AMAGIC means.
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study uses magic to call SvSCREAM_off() if the scalar is modified. Allocate it
its own magic type ('G' for now - pos magic is 'g'). Share the same "set"
routine and vtable as regexp/bm/fm (setregxp and vtbl_regexp).
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Magic is sorted case insensitively, with upper case before lower case.
vtable names are all lowercase letters.
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