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#
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# Tool.pm - Store basic tool properties
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#
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# Originally Written by Christopher Williams
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#
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# Description
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# -----------
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# Stores basic tool features
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#
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# Interface
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# ---------
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# new() : A new FeatureTool object
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# name() : get/set the tools name
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# version() : get set the tool version
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# url() : get set the tool url
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# features() : return a list of features defined (ordered in relation to
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# their first definition)
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# listtype(type) : return a list of all features of the specified type
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# addfeature(name,@value) : add value(s) to the named feature
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# setfeature(name,@value) : set value(s) for the named feature
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# getfeature(name) : return a list of elements belonging to the named feature
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# (with embedded dependencies)
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# type(name[,type]) : get/set the type associated with a feature
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# addrequirement() : add a requirement at the current parse position
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# dependencies() : return a list of dependency objects
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# store(location) : Save object to given file
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# restore(location) : Restore object from specified file
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# reset() : Clean out all the features
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package BuildSystem::Tool;
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require 5.004;
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sub new {
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my $class=shift;
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my $self={};
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bless $self, $class;
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return $self;
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}
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sub name {
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my $self=shift;
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@_?$self->{name}=shift
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:$self->{name};
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}
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sub version {
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my $self=shift;
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@_?$self->{version}=shift
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:$self->{version};
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}
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sub url {
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my $self=shift;
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@_?$self->{url}=shift
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:$self->{url};
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}
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sub listtype {
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my $self=shift;
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my $type=shift;
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my @list=();
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foreach $v ( $self->features() ) {
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if ( $self->type($v) eq $type ) {
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push @list, $v;
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}
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}
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return @list;
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}
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sub type {
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my $self=shift;
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my $name=shift;
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if ( @_ ) {
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$self->{featuretypes}{$name}=shift;
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}
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return ((defined $self->{featuretypes}{$name})?
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$self->{featuretypes}{$name}:"");
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}
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sub addfeature {
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my $self=shift;
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my $name=shift;
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my @value=@_;
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$self->_newfeature($name,@value);
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push @{$self->{features}{$name}}, @value;
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}
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sub setfeature {
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my $self=shift;
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my $name=shift;
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my @value=@_;
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$self->_newfeature($name,@value);
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@{$self->{features}{$name}}=@value;
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}
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sub reset {
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my $self=shift;
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undef $self->{features};
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undef $self->{'features_ordered'};
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undef $self->{reqobjs};
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undef $self->{requireposition};
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}
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sub _newfeature {
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my $self=shift;
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my $name=shift;
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my @value=@_;
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# if it dosnt exist , make sure we first mark all the current reqs
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# get inserted beforehand
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if ( ! exists $self->{features}{$name} ) {
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# add feature name to our ordered list
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push @{$self->{'features_ordered'}},$name;
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for ( $i=0; $i<=$#{$self->{reqobjs}}; $i++ ) {
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$self->_recordpos( $name, $i);
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}
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}
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}
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sub features {
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my $self=shift;
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# return (keys %{$self->{features}});
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return @{$self->{'features_ordered'}};
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}
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sub getfeature {
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my $self=shift;
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my $name=shift;
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my @rv=();
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my @rep;
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# make sure we insert requirements at the right place
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for ( my $i=-1; $i<=$#{$self->{features}{$name}}; $i++ ) {
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if ( $i>=0 ) {
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push @rv, $self->{features}{$name}[$i];
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}
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my @rep=$self->_testpos($name, $i);
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my $repobj;
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foreach $repobj ( @rep ) {
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push @rv, $repobj->getfeature($name);
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}
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}
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return @rv;
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}
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sub clearfeature {
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my $self=shift;
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my $name=shift;
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undef @{$self->{features}{$name}};
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}
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sub addrequirement {
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my $self=shift;
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my $reqobj=shift;
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push @{$self->{reqobjs}}, $reqobj;
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foreach $key ( keys %{$self->{features}} ) {
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$self->_recordpos($key,$#{$self->{reqobjs}});
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}
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}
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sub dependencies {
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my $self=shift;
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return @{$self->{recobjs}}
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}
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sub store {
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my $self=shift;
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my $location=shift;
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my $fh=FileHandle->new();
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$fh->open(">".$location) or die "Unable to open $location for output".
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$!."\n";
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print $fh "name:".$self->name().":_sys\n";
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print $fh "version:".$self->version().":_sys\n";
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print $fh "url:".$self->url().":_sys\n";
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foreach $f ( $self->features()) {
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foreach $val ( $self->getfeature($f) ) {
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print $fh $f.":".$val.":".$self->type($f)."\n";
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}
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}
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undef $fh;
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}
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sub restore {
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my $self=shift;
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my $location=shift;
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my $fh=FileHandle->new();
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$fh->open("<".$location) or die "Unable to open $location for output".
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$!."\n";
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my ($tool,$type,$variable,$value);
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while ( <$fh> ) {
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chomp;
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next if /^#/;
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next if /^\s*$/;
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($variable, $value, $type)=split /:/;
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next if ( $variable=~/\&/ );
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$product=~tr[A-Z][a-z];
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if ( $type eq "_sys" ) {
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if ( $self->can($variable)) {
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$self->$variable($value);
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}
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}
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else {
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$self->addfeature($variable,$value);
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}
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}
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undef $fh;
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}
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sub _recordpos {
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my $self=shift;
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my $name=shift;
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my $recref=shift;
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push @{$self->{requireposition}{$name}{$#{$self->{features}{$name}}}}
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,$recref;
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}
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# return array of objects that correspond to the required position
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sub _testpos {
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my $self=shift;
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my $name=shift;
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my $ref=shift;
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my @rv=();
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if ( exists $self->{requireposition}{$name}{$ref} ) {
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foreach $recref ( @{$self->{requireposition}{$name}{$ref}} ) {
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push @rv, $self->{reqobjs}[$recref];
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}
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}
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return @rv;
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}
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