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package Devel::WatchVars::Tie::Scalar; |
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=encoding utf8 |
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=cut |
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use utf8; |
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use strict; |
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165
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use warnings; |
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200
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no overloading; |
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use Carp qw(shortmess); |
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1190
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our $VERSION = "v1.0.5"; |
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(my $PKG = __PACKAGE__) =~ s/::Tie::Scalar//; |
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push our @CARP_NOT => $PKG, qw( |
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Data::Dump |
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Data::Dumper |
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); |
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3924
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use Devel::GlobalDestruction; |
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4157
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sub mycarp { |
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local $\; |
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print STDERR &mymess; |
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} |
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sub mymess { |
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local $Carp::Verbose = $ENV{DEVEL_WATCHVARS_VERBOSE} ? 1 : 0; |
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return &shortmess; |
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} |
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sub redef($) { |
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return $_[0] // "undef"; |
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} |
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1385
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use namespace::clean; |
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59
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40
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41
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########################################################### |
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sub TIESCALAR { |
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3
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3
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my($class, $name, $value) = @_; |
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3
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100
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unless ($name) { |
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1
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6
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$name = mymess "some scalar variable"; |
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1
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708
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$name =~ s/ at (\S.*) (line \d+)[.]?\n\z/ watched at $2 of $1/; |
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} |
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3
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mycarp "WATCH $name = ", redef $value; |
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3
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2393
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return bless { |
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name => $name, |
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value => $value, |
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}, $class; |
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} |
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56
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sub FETCH { |
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1825
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my($self) = @_; |
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10
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50
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mycarp "FETCH $$self{name} --> ", redef $$self{value}; |
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10
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6111
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return $$self{value}; |
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} |
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62
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sub STORE { |
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5
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5
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23
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my($self, $new_value) = @_; |
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5
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25
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mycarp "STORE $$self{name} <-- ", redef $new_value; |
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5
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2951
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return $$self{value} = $new_value; |
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} |
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68
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sub DESTROY { |
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3
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3
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22
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my($self) = @_; |
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3
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100
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50
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113
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my $action = |
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50
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71
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in_global_destruction ? "DESTROY (during global destruction)" |
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: ((caller 2)[3] // "") eq "${PKG}::unwatch" ? "UNWATCH" |
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: "DESTROY"; |
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3
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98
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mycarp "$action $$self{name} = ", redef $$self{value}; |
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3
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100
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2126
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if (my $sref = $$self{sref}) { |
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2
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50
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$$sref = $$self{value} unless in_global_destruction; |
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} |
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3
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46
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delete @$self{keys %$self}; |
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} |
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81
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1; |
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__END__ |