1Set::Object::Weak(3) User Contributed Perl Documentation Set::Object::Weak(3)
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6 Set::Object::Weak - Sets without the referant reference increment
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9 use Set::Object::Weak qw(weak_set);
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11 my $set = Set::Object::Weak->new( 0, "", {}, [], $object );
12 # or
13 my $set = weak_set( 0, "", {}, [], $object );
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15 print $set->size; # 2 - the scalars aren't objects
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18 Sets, but weak. See "weaken" in Set::Object.
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20 Note that the "set" in "Set::Object::Weak" returns weak sets. This is
21 intentional, so that you can make all the sets in scope weak just by
22 changing "use Set::Object" to "use Set::Object::Weak".
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25 new This class method is exactly the same as "Set::Object->new", except
26 that it returns a weak set.
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28 weak_set( ... )
29 This optionally exported function is a shortcut for saying
30 "Set::Object::Weak->new(...)".
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32 set( ... )
33 This method is exported so that if you see:
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35 use Set::Object qw(set);
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37 You can turn it into using weak sets lexically with:
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39 use Set::Object::Weak qw(set);
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41 Set::Object 1.19 had a bug in this method that meant that it would
42 not add the passed members into it.
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45 Set::Object
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48 Perl magic by Sam Vilain, <samv@cpan.org>
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50 Idea from nothingmuch.
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54perl v5.30.1 2020-01-30 Set::Object::Weak(3)