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<span class="siteTitle">NYTProf Performance Profile</span>
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<span class="siteSubtitle">Run on Tue May 4 15:25:55 2010<br />Reported on Tue May 4 15:26:24 2010</span>
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<div style="position: absolute; left: 0px; top: 98%; width: 100%; height: 3%; z-index: -1; background-color: rgb(0, 69, 188); "></div>
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<table>
<tr>
<td class="h" align="right">File</td>
<td align="left">/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm</td>
</tr>
<tr>
<td class="h" align="right">Statements Executed</td>
<td align="left">1458</td>
</tr>
<tr>
<td class="h" align="right">Statement Execution Time</td>
<td align="left">15.3ms</td>
</tr>
</table>
<table id="subs_table" border="1" cellpadding="0" class="tablesorter">
<caption>Subroutines — ordered by exclusive time</caption>
<thead>
<tr>
<th>Calls</th>
<th><span title="Number of Places sub is called from">P</span></th>
<th><span title="Number of Files sub is called from">F</span></th>
<th>Exclusive<br />Time</th>
<th>Inclusive<br />Time</th>
<th>Subroutine</th>
</tr>
</thead>
<tbody>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="1.0%">10.8ms</span></td><td class="c0"><span title="3.0%">32.5ms</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::BEGIN@7</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#7">BEGIN@7</a></span></td></tr>
<tr><td class="c1">11</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">410µs</span></td><td class="c0"><span title="0.2%">2.60ms</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_do_import</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#761">_do_import</a></span></td></tr>
<tr><td class="c1">11</td><td class="c0">10</td><td class="c0">8</td><td class="c0"><span title="0.0%">363µs</span></td><td class="c0"><span title="0.4%">4.24ms</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::__ANON__[:756]</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#711">__ANON__[:756]</a></span></td></tr>
<tr><td class="c0">18</td><td class="c1">2</td><td class="c3">1</td><td class="c0"><span title="0.0%">342µs</span></td><td class="c0"><span title="0.1%">759µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_expand_groups</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#414">_expand_groups</a></span></td></tr>
<tr><td class="c1">11</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">293µs</span></td><td class="c0"><span title="0.1%">1.60ms</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::default_installer</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#882">default_installer</a></span></td></tr>
<tr><td class="c1">11</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">244µs</span></td><td class="c0"><span title="0.0%">397µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_collect_collections</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#549">_collect_collections</a></span></td></tr>
<tr><td class="c0">35</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">239µs</span></td><td class="c0"><span title="0.1%">582µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::default_generator</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#843">default_generator</a></span></td></tr>
<tr><td class="c3">5</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">200µs</span></td><td class="c0"><span title="0.1%">1.39ms</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_rewrite_build_config</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#652">_rewrite_build_config</a></span></td></tr>
<tr><td class="c2">7</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">158µs</span></td><td class="c0"><span title="0.0%">522µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_expand_group</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#456">_expand_group</a></span></td></tr>
<tr><td class="c1">11</td><td class="c3">1</td><td class="c3">1</td><td class="c1"><span title="0.0%">123µs</span></td><td class="c3"><span title="0.0%">123µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_mk_collection_builder</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#514">_mk_collection_builder</a></span></td></tr>
<tr><td class="c0">49</td><td class="c1">2</td><td class="c3">1</td><td class="c1"><span title="0.0%">109µs</span></td><td class="c3"><span title="0.0%">109µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_group_name</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#403">_group_name</a></span></td></tr>
<tr><td class="c3">5</td><td class="c0">3</td><td class="c1">2</td><td class="c3"><span title="0.0%">57µs</span></td><td class="c0"><span title="0.1%">1.44ms</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::build_exporter</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#706">build_exporter</a></span></td></tr>
<tr><td class="c3">5</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">54µs</span></td><td class="c3"><span title="0.0%">54µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_key_intersection</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#625">_key_intersection</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">32µs</span></td><td class="c3"><span title="0.0%">32µs</span></td><td class="sub_name"><span style="display: none;">Devel::GlobalDestruction::::BEGIN@1</span>Devel::GlobalDestruction::<a href="Sub-Exporter-pm-line.html#1">BEGIN@1</a></span></td></tr>
<tr><td class="c3">2</td><td class="c1">2</td><td class="c1">2</td><td class="c3"><span title="0.0%">31µs</span></td><td class="c0"><span title="0.1%">688µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::setup_exporter</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#593">setup_exporter</a></span></td></tr>
<tr><td class="c3">5</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">26µs</span></td><td class="c3"><span title="0.0%">30µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_assert_collector_names_ok</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#643">_assert_collector_names_ok</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">26µs</span></td><td class="c3"><span title="0.0%">26µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::BEGIN@636</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#636">BEGIN@636</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">22µs</span></td><td class="c3"><span title="0.0%">31µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::__ANON__[:544]</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#519">__ANON__[:544]</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">13µs</span></td><td class="c3"><span title="0.0%">33µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::BEGIN@9</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#9">BEGIN@9</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">10µs</span></td><td class="c3"><span title="0.0%">14µs</span></td><td class="sub_name"><span style="display: none;">Devel::GlobalDestruction::::BEGIN@2</span>Devel::GlobalDestruction::<a href="Sub-Exporter-pm-line.html#2">BEGIN@2</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">9µs</span></td><td class="c3"><span title="0.0%">21µs</span></td><td class="sub_name"><span style="display: none;">Devel::GlobalDestruction::::BEGIN@3</span>Devel::GlobalDestruction::<a href="Sub-Exporter-pm-line.html#3">BEGIN@3</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">8µs</span></td><td class="c3"><span title="0.0%">8µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::_setup</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#945">_setup</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">6µs</span></td><td class="c3"><span title="0.0%">6µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::BEGIN@8</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#8">BEGIN@8</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">5µs</span></td><td class="c3"><span title="0.0%">134µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::__ANON__[:937]</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#937">__ANON__[:937]</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">4µs</span></td><td class="c3"><span title="0.0%">4µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::BEGIN@6</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#6">BEGIN@6</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c1">2</td><td class="c3"><span title="0.0%">4µs</span></td><td class="c3"><span title="0.0%">4µs</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::CORE:match</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#Sub__Exporter__CORE_match">CORE:match</a> (opcode)</span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::__ANON__[:773]</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#773">__ANON__[:773]</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">Sub::Exporter::::default_exporter</span> Sub::Exporter::<a href="Sub-Exporter-pm-line.html#905">default_exporter</a></span></td></tr>
</tbody>
</table>
Call graph for these subroutines as a <a href="http://en.wikipedia.org/wiki/Graphviz">Graphviz</a> <a href="usr-local-lib-perl5-site_perl-5-10-1-Sub-Exporter-pm.dot">dot language file</a>.
<table border="1" cellpadding="0">
<thead>
<tr><th>Line</th>
<th><span title="Number of statements executed">State<br />ments</span></th>
<th><span title="Time spend executing statements on the line,
excluding time spent executing statements in any called subroutines">Time<br />on line</span></th>
<th><span title="Number of subroutines calls">Calls</span></th>
<th><span title="Time spent in subroutines called">Time<br />in subs</span></th>
<th class="left_indent_header">Code</th>
</tr>
</thead>
<tbody>
<tr><td class="h"><a name="1"></a>1</td><td class="c3">3</td><td class="c0"><span title="Avg 27µs">80µs</span></td><td class="c3">1</td><td class="c3">32µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 32µs within Devel::GlobalDestruction::BEGIN@1 which was called
# once (32µs+0s) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#1">line 1</a></div></div>use 5.006;<div class="calls"><div class="calls_out"># spent 32µs making 1 call to <a href="Sub-Exporter-pm-line.html#1">Devel::GlobalDestruction::BEGIN@1</a></div></div></td></tr>
<tr><td class="h"><a name="2"></a>2</td><td class="c3">3</td><td class="c1"><span title="Avg 9µs">26µs</span></td><td class="c3">2</td><td class="c3">18µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 14µs (10+4) within Devel::GlobalDestruction::BEGIN@2 which was called
# once (10µs+4µs) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#2">line 2</a></div></div>use strict;<div class="calls"><div class="calls_out"># spent 14µs making 1 call to <a href="Sub-Exporter-pm-line.html#2">Devel::GlobalDestruction::BEGIN@2</a>
# spent 4µs making 1 call to <a href="strict-pm-line.html#34">strict::import</a></div></div></td></tr>
<tr><td class="h"><a name="3"></a>3</td><td class="c3">3</td><td class="c0"><span title="Avg 11µs">32µs</span></td><td class="c3">2</td><td class="c3">33µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 21µs (9+12) within Devel::GlobalDestruction::BEGIN@3 which was called
# once (9µs+12µs) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#3">line 3</a></div></div>use warnings;<div class="calls"><div class="calls_out"># spent 21µs making 1 call to <a href="Sub-Exporter-pm-line.html#3">Devel::GlobalDestruction::BEGIN@3</a>
# spent 12µs making 1 call to <a href="warnings-pm-line.html#338">warnings::import</a></div></div></td></tr>
<tr><td class="h"><a name="4"></a>4</td><td></td><td></td><td></td><td></td><td class="s">package Sub::Exporter;</td></tr>
<tr><td class="h"><a name="5"></a>5</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="6"></a>6</td><td class="c3">3</td><td class="c1"><span title="Avg 7µs">22µs</span></td><td class="c3">1</td><td class="c3">4µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 4µs within Sub::Exporter::BEGIN@6 which was called
# once (4µs+0s) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#6">line 6</a></div></div>use Carp ();<div class="calls"><div class="calls_out"># spent 4µs making 1 call to <a href="Sub-Exporter-pm-line.html#6">Sub::Exporter::BEGIN@6</a></div></div></td></tr>
<tr><td class="h"><a name="7"></a>7</td><td class="c3">3</td><td class="c0"><span title="Avg 3.17ms">9.51ms</span></td><td class="c3">1</td><td class="c0">32.5ms</td><td class="s"><div class="calls"><div class="calls_in"># spent 32.5ms (10.8+21.7) within Sub::Exporter::BEGIN@7 which was called
# once (10.8ms+21.7ms) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#7">line 7</a></div></div>use Data::OptList ();<div class="calls"><div class="calls_out"># spent 32.5ms making 1 call to <a href="Sub-Exporter-pm-line.html#7">Sub::Exporter::BEGIN@7</a></div></div></td></tr>
<tr><td class="h"><a name="8"></a>8</td><td class="c3">3</td><td class="c0"><span title="Avg 10µs">31µs</span></td><td class="c3">1</td><td class="c3">6µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 6µs within Sub::Exporter::BEGIN@8 which was called
# once (6µs+0s) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#8">line 8</a></div></div>use Params::Util ();<div class="calls"><div class="calls_out"># spent 6µs making 1 call to <a href="Sub-Exporter-pm-line.html#8">Sub::Exporter::BEGIN@8</a></div></div></td></tr>
<tr><td class="h"><a name="9"></a>9</td><td class="c3">3</td><td class="c0"><span title="Avg 516µs">1.55ms</span></td><td class="c3">2</td><td class="c3">54µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 33µs (13+21) within Sub::Exporter::BEGIN@9 which was called
# once (13µs+21µs) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#9">line 9</a></div></div>use Sub::Install 0.92 ();<div class="calls"><div class="calls_out"># spent 33µs making 1 call to <a href="Sub-Exporter-pm-line.html#9">Sub::Exporter::BEGIN@9</a>
# spent 21µs making 1 call to <a >UNIVERSAL::VERSION</a></div></div></td></tr>
<tr><td class="h"><a name="10"></a>10</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="11"></a>11</td><td></td><td></td><td></td><td></td><td class="s">=head1 NAME</td></tr>
<tr><td class="h"><a name="12"></a>12</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="13"></a>13</td><td></td><td></td><td></td><td></td><td class="s">Sub::Exporter - a sophisticated exporter for custom-built routines</td></tr>
<tr><td class="h"><a name="14"></a>14</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="15"></a>15</td><td></td><td></td><td></td><td></td><td class="s">=head1 VERSION</td></tr>
<tr><td class="h"><a name="16"></a>16</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="17"></a>17</td><td></td><td></td><td></td><td></td><td class="s">version 0.982</td></tr>
<tr><td class="h"><a name="18"></a>18</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="19"></a>19</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="20"></a>20</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="21"></a>21</td><td class="c3">1</td><td class="c3"><span title="Avg 1µs">1µs</span></td><td></td><td></td><td class="s">our $VERSION = '0.982';</td></tr>
<tr><td class="h"><a name="22"></a>22</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="23"></a>23</td><td></td><td></td><td></td><td></td><td class="s">=head1 SYNOPSIS</td></tr>
<tr><td class="h"><a name="24"></a>24</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="25"></a>25</td><td></td><td></td><td></td><td></td><td class="s">Sub::Exporter must be used in two places. First, in an exporting module:</td></tr>
<tr><td class="h"><a name="26"></a>26</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="27"></a>27</td><td></td><td></td><td></td><td></td><td class="s"> # in the exporting module:</td></tr>
<tr><td class="h"><a name="28"></a>28</td><td></td><td></td><td></td><td></td><td class="s"> package Text::Tweaker;</td></tr>
<tr><td class="h"><a name="29"></a>29</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter -setup => {</td></tr>
<tr><td class="h"><a name="30"></a>30</td><td></td><td></td><td></td><td></td><td class="s"> exports => [</td></tr>
<tr><td class="h"><a name="31"></a>31</td><td></td><td></td><td></td><td></td><td class="s"> qw(squish titlecase), # always works the same way</td></tr>
<tr><td class="h"><a name="32"></a>32</td><td></td><td></td><td></td><td></td><td class="s"> reformat => \&build_reformatter, # generator to build exported function</td></tr>
<tr><td class="h"><a name="33"></a>33</td><td></td><td></td><td></td><td></td><td class="s"> trim => \&build_trimmer,</td></tr>
<tr><td class="h"><a name="34"></a>34</td><td></td><td></td><td></td><td></td><td class="s"> indent => \&build_indenter,</td></tr>
<tr><td class="h"><a name="35"></a>35</td><td></td><td></td><td></td><td></td><td class="s"> ],</td></tr>
<tr><td class="h"><a name="36"></a>36</td><td></td><td></td><td></td><td></td><td class="s"> collectors => [ 'defaults' ],</td></tr>
<tr><td class="h"><a name="37"></a>37</td><td></td><td></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="38"></a>38</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="39"></a>39</td><td></td><td></td><td></td><td></td><td class="s">Then, in an importing module:</td></tr>
<tr><td class="h"><a name="40"></a>40</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="41"></a>41</td><td></td><td></td><td></td><td></td><td class="s"> # in the importing module:</td></tr>
<tr><td class="h"><a name="42"></a>42</td><td></td><td></td><td></td><td></td><td class="s"> use Text::Tweaker</td></tr>
<tr><td class="h"><a name="43"></a>43</td><td></td><td></td><td></td><td></td><td class="s"> 'squish',</td></tr>
<tr><td class="h"><a name="44"></a>44</td><td></td><td></td><td></td><td></td><td class="s"> indent => { margin => 5 },</td></tr>
<tr><td class="h"><a name="45"></a>45</td><td></td><td></td><td></td><td></td><td class="s"> reformat => { width => 79, justify => 'full', -as => 'prettify_text' },</td></tr>
<tr><td class="h"><a name="46"></a>46</td><td></td><td></td><td></td><td></td><td class="s"> defaults => { eol => 'CRLF' };</td></tr>
<tr><td class="h"><a name="47"></a>47</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="48"></a>48</td><td></td><td></td><td></td><td></td><td class="s">With this setup, the importing module ends up with three routines: C<squish>,</td></tr>
<tr><td class="h"><a name="49"></a>49</td><td></td><td></td><td></td><td></td><td class="s">C<indent>, and C<prettify_text>. The latter two have been built to the</td></tr>
<tr><td class="h"><a name="50"></a>50</td><td></td><td></td><td></td><td></td><td class="s">specifications of the importer -- they are not just copies of the code in the</td></tr>
<tr><td class="h"><a name="51"></a>51</td><td></td><td></td><td></td><td></td><td class="s">exporting package.</td></tr>
<tr><td class="h"><a name="52"></a>52</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="53"></a>53</td><td></td><td></td><td></td><td></td><td class="s">=head1 DESCRIPTION</td></tr>
<tr><td class="h"><a name="54"></a>54</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="55"></a>55</td><td></td><td></td><td></td><td></td><td class="s">B<ACHTUNG!> If you're not familiar with Exporter or exporting, read</td></tr>
<tr><td class="h"><a name="56"></a>56</td><td></td><td></td><td></td><td></td><td class="s">L<Sub::Exporter::Tutorial> first!</td></tr>
<tr><td class="h"><a name="57"></a>57</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="58"></a>58</td><td></td><td></td><td></td><td></td><td class="s">=head2 Why Generators?</td></tr>
<tr><td class="h"><a name="59"></a>59</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="60"></a>60</td><td></td><td></td><td></td><td></td><td class="s">The biggest benefit of Sub::Exporter over existing exporters (including the</td></tr>
<tr><td class="h"><a name="61"></a>61</td><td></td><td></td><td></td><td></td><td class="s">ubiquitous Exporter.pm) is its ability to build new coderefs for export, rather</td></tr>
<tr><td class="h"><a name="62"></a>62</td><td></td><td></td><td></td><td></td><td class="s">than to simply export code identical to that found in the exporting package.</td></tr>
<tr><td class="h"><a name="63"></a>63</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="64"></a>64</td><td></td><td></td><td></td><td></td><td class="s">If your module's consumers get a routine that works like this:</td></tr>
<tr><td class="h"><a name="65"></a>65</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="66"></a>66</td><td></td><td></td><td></td><td></td><td class="s"> use Data::Analyze qw(analyze);</td></tr>
<tr><td class="h"><a name="67"></a>67</td><td></td><td></td><td></td><td></td><td class="s"> my $value = analyze($data, $tolerance, $passes);</td></tr>
<tr><td class="h"><a name="68"></a>68</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="69"></a>69</td><td></td><td></td><td></td><td></td><td class="s">and they constantly pass only one or two different set of values for the</td></tr>
<tr><td class="h"><a name="70"></a>70</td><td></td><td></td><td></td><td></td><td class="s">non-C<$data> arguments, your code can benefit from Sub::Exporter. By writing a</td></tr>
<tr><td class="h"><a name="71"></a>71</td><td></td><td></td><td></td><td></td><td class="s">simple generator, you can let them do this, instead:</td></tr>
<tr><td class="h"><a name="72"></a>72</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="73"></a>73</td><td></td><td></td><td></td><td></td><td class="s"> use Data::Analyze</td></tr>
<tr><td class="h"><a name="74"></a>74</td><td></td><td></td><td></td><td></td><td class="s"> analyze => { tolerance => 0.10, passes => 10, -as => analyze10 },</td></tr>
<tr><td class="h"><a name="75"></a>75</td><td></td><td></td><td></td><td></td><td class="s"> analyze => { tolerance => 0.15, passes => 50, -as => analyze50 };</td></tr>
<tr><td class="h"><a name="76"></a>76</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="77"></a>77</td><td></td><td></td><td></td><td></td><td class="s"> my $value = analyze10($data);</td></tr>
<tr><td class="h"><a name="78"></a>78</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="79"></a>79</td><td></td><td></td><td></td><td></td><td class="s">The generator for that would look something like this:</td></tr>
<tr><td class="h"><a name="80"></a>80</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="81"></a>81</td><td></td><td></td><td></td><td></td><td class="s"> sub build_analyzer {</td></tr>
<tr><td class="h"><a name="82"></a>82</td><td></td><td></td><td></td><td></td><td class="s"> my ($class, $name, $arg) = @_;</td></tr>
<tr><td class="h"><a name="83"></a>83</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="84"></a>84</td><td></td><td></td><td></td><td></td><td class="s"> return sub {</td></tr>
<tr><td class="h"><a name="85"></a>85</td><td></td><td></td><td></td><td></td><td class="s"> my $data = shift;</td></tr>
<tr><td class="h"><a name="86"></a>86</td><td></td><td></td><td></td><td></td><td class="s"> my $tolerance = shift || $arg->{tolerance}; </td></tr>
<tr><td class="h"><a name="87"></a>87</td><td></td><td></td><td></td><td></td><td class="s"> my $passes = shift || $arg->{passes}; </td></tr>
<tr><td class="h"><a name="88"></a>88</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="89"></a>89</td><td></td><td></td><td></td><td></td><td class="s"> analyze($data, $tolerance, $passes);</td></tr>
<tr><td class="h"><a name="90"></a>90</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="91"></a>91</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="92"></a>92</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="93"></a>93</td><td></td><td></td><td></td><td></td><td class="s">Your module's user now has to do less work to benefit from it -- and remember,</td></tr>
<tr><td class="h"><a name="94"></a>94</td><td></td><td></td><td></td><td></td><td class="s">you're often your own user! Investing in customized subroutines is an</td></tr>
<tr><td class="h"><a name="95"></a>95</td><td></td><td></td><td></td><td></td><td class="s">investment in future laziness.</td></tr>
<tr><td class="h"><a name="96"></a>96</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="97"></a>97</td><td></td><td></td><td></td><td></td><td class="s">This also avoids a common form of ugliness seen in many modules: package-level</td></tr>
<tr><td class="h"><a name="98"></a>98</td><td></td><td></td><td></td><td></td><td class="s">configuration. That is, you might have seen something like the above</td></tr>
<tr><td class="h"><a name="99"></a>99</td><td></td><td></td><td></td><td></td><td class="s">implemented like so:</td></tr>
<tr><td class="h"><a name="100"></a>100</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="101"></a>101</td><td></td><td></td><td></td><td></td><td class="s"> use Data::Analyze qw(analyze);</td></tr>
<tr><td class="h"><a name="102"></a>102</td><td></td><td></td><td></td><td></td><td class="s"> $Data::Analyze::default_tolerance = 0.10;</td></tr>
<tr><td class="h"><a name="103"></a>103</td><td></td><td></td><td></td><td></td><td class="s"> $Data::Analyze::default_passes = 10;</td></tr>
<tr><td class="h"><a name="104"></a>104</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="105"></a>105</td><td></td><td></td><td></td><td></td><td class="s">This might save time, until you have multiple modules using Data::Analyze.</td></tr>
<tr><td class="h"><a name="106"></a>106</td><td></td><td></td><td></td><td></td><td class="s">Because there is only one global configuration, they step on each other's toes</td></tr>
<tr><td class="h"><a name="107"></a>107</td><td></td><td></td><td></td><td></td><td class="s">and your code begins to have mysterious errors.</td></tr>
<tr><td class="h"><a name="108"></a>108</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="109"></a>109</td><td></td><td></td><td></td><td></td><td class="s">Generators can also allow you to export class methods to be called as</td></tr>
<tr><td class="h"><a name="110"></a>110</td><td></td><td></td><td></td><td></td><td class="s">subroutines:</td></tr>
<tr><td class="h"><a name="111"></a>111</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="112"></a>112</td><td></td><td></td><td></td><td></td><td class="s"> package Data::Methodical;</td></tr>
<tr><td class="h"><a name="113"></a>113</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter -setup => { exports => { some_method => \&_curry_class } };</td></tr>
<tr><td class="h"><a name="114"></a>114</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="115"></a>115</td><td></td><td></td><td></td><td></td><td class="s"> sub _curry_class {</td></tr>
<tr><td class="h"><a name="116"></a>116</td><td></td><td></td><td></td><td></td><td class="s"> my ($class, $name) = @_;</td></tr>
<tr><td class="h"><a name="117"></a>117</td><td></td><td></td><td></td><td></td><td class="s"> sub { $class->$name(@_); };</td></tr>
<tr><td class="h"><a name="118"></a>118</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="119"></a>119</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="120"></a>120</td><td></td><td></td><td></td><td></td><td class="s">Because of the way that exporters and Sub::Exporter work, any package that</td></tr>
<tr><td class="h"><a name="121"></a>121</td><td></td><td></td><td></td><td></td><td class="s">inherits from Data::Methodical can inherit its exporter and override its</td></tr>
<tr><td class="h"><a name="122"></a>122</td><td></td><td></td><td></td><td></td><td class="s">C<some_method>. If a user imports C<some_method> from that package, he'll</td></tr>
<tr><td class="h"><a name="123"></a>123</td><td></td><td></td><td></td><td></td><td class="s">receive a subroutine that calls the method on the subclass, rather than on</td></tr>
<tr><td class="h"><a name="124"></a>124</td><td></td><td></td><td></td><td></td><td class="s">Data::Methodical itself.</td></tr>
<tr><td class="h"><a name="125"></a>125</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="126"></a>126</td><td></td><td></td><td></td><td></td><td class="s">=head2 Other Customizations</td></tr>
<tr><td class="h"><a name="127"></a>127</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="128"></a>128</td><td></td><td></td><td></td><td></td><td class="s">Building custom routines with generators isn't the only way that Sub::Exporters</td></tr>
<tr><td class="h"><a name="129"></a>129</td><td></td><td></td><td></td><td></td><td class="s">allows the importing code to refine its use of the exported routines. They may</td></tr>
<tr><td class="h"><a name="130"></a>130</td><td></td><td></td><td></td><td></td><td class="s">also be renamed to avoid naming collisions.</td></tr>
<tr><td class="h"><a name="131"></a>131</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="132"></a>132</td><td></td><td></td><td></td><td></td><td class="s">Consider the following code:</td></tr>
<tr><td class="h"><a name="133"></a>133</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="134"></a>134</td><td></td><td></td><td></td><td></td><td class="s"> # this program determines to which circle of Hell you will be condemned</td></tr>
<tr><td class="h"><a name="135"></a>135</td><td></td><td></td><td></td><td></td><td class="s"> use Morality qw(sin virtue); # for calculating viciousness</td></tr>
<tr><td class="h"><a name="136"></a>136</td><td></td><td></td><td></td><td></td><td class="s"> use Math::Trig qw(:all); # for dealing with circles</td></tr>
<tr><td class="h"><a name="137"></a>137</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="138"></a>138</td><td></td><td></td><td></td><td></td><td class="s">The programmer has inadvertantly imported two C<sin> routines. The solution,</td></tr>
<tr><td class="h"><a name="139"></a>139</td><td></td><td></td><td></td><td></td><td class="s">in Exporter.pm-based modules, would be to import only one and then call the</td></tr>
<tr><td class="h"><a name="140"></a>140</td><td></td><td></td><td></td><td></td><td class="s">other by its fully-qualified name. Alternately, the importer could write a</td></tr>
<tr><td class="h"><a name="141"></a>141</td><td></td><td></td><td></td><td></td><td class="s">routine that did so, or could mess about with typeglobs.</td></tr>
<tr><td class="h"><a name="142"></a>142</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="143"></a>143</td><td></td><td></td><td></td><td></td><td class="s">How much easier to write:</td></tr>
<tr><td class="h"><a name="144"></a>144</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="145"></a>145</td><td></td><td></td><td></td><td></td><td class="s"> # this program determines to which circle of Hell you will be condemned</td></tr>
<tr><td class="h"><a name="146"></a>146</td><td></td><td></td><td></td><td></td><td class="s"> use Morality qw(virtue), sin => { -as => 'offense' };</td></tr>
<tr><td class="h"><a name="147"></a>147</td><td></td><td></td><td></td><td></td><td class="s"> use Math::Trig -all => { -prefix => 'trig_' };</td></tr>
<tr><td class="h"><a name="148"></a>148</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="149"></a>149</td><td></td><td></td><td></td><td></td><td class="s">and to have at one's disposal C<offense> and C<trig_sin> -- not to mention</td></tr>
<tr><td class="h"><a name="150"></a>150</td><td></td><td></td><td></td><td></td><td class="s">C<trig_cos> and C<trig_tan>.</td></tr>
<tr><td class="h"><a name="151"></a>151</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="152"></a>152</td><td></td><td></td><td></td><td></td><td class="s">=head1 EXPORTER CONFIGURATION</td></tr>
<tr><td class="h"><a name="153"></a>153</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="154"></a>154</td><td></td><td></td><td></td><td></td><td class="s">You can configure an exporter for your package by using Sub::Exporter like so:</td></tr>
<tr><td class="h"><a name="155"></a>155</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="156"></a>156</td><td></td><td></td><td></td><td></td><td class="s"> package Tools;</td></tr>
<tr><td class="h"><a name="157"></a>157</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter</td></tr>
<tr><td class="h"><a name="158"></a>158</td><td></td><td></td><td></td><td></td><td class="s"> -setup => { exports => [ qw(function1 function2 function3) ] };</td></tr>
<tr><td class="h"><a name="159"></a>159</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="160"></a>160</td><td></td><td></td><td></td><td></td><td class="s">This is the simplest way to use the exporter, and is basically equivalent to</td></tr>
<tr><td class="h"><a name="161"></a>161</td><td></td><td></td><td></td><td></td><td class="s">this:</td></tr>
<tr><td class="h"><a name="162"></a>162</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="163"></a>163</td><td></td><td></td><td></td><td></td><td class="s"> package Tools;</td></tr>
<tr><td class="h"><a name="164"></a>164</td><td></td><td></td><td></td><td></td><td class="s"> use base qw(Exporter);</td></tr>
<tr><td class="h"><a name="165"></a>165</td><td></td><td></td><td></td><td></td><td class="s"> our @EXPORT_OK = qw(function1 function2 function2);</td></tr>
<tr><td class="h"><a name="166"></a>166</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="167"></a>167</td><td></td><td></td><td></td><td></td><td class="s">Any basic use of Sub::Exporter will look like this:</td></tr>
<tr><td class="h"><a name="168"></a>168</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="169"></a>169</td><td></td><td></td><td></td><td></td><td class="s"> package Tools;</td></tr>
<tr><td class="h"><a name="170"></a>170</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter -setup => \%config;</td></tr>
<tr><td class="h"><a name="171"></a>171</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="172"></a>172</td><td></td><td></td><td></td><td></td><td class="s">The following keys are valid in C<%config>:</td></tr>
<tr><td class="h"><a name="173"></a>173</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="174"></a>174</td><td></td><td></td><td></td><td></td><td class="s"> exports - a list of routines to provide for exporting; each routine may be</td></tr>
<tr><td class="h"><a name="175"></a>175</td><td></td><td></td><td></td><td></td><td class="s"> followed by generator</td></tr>
<tr><td class="h"><a name="176"></a>176</td><td></td><td></td><td></td><td></td><td class="s"> groups - a list of groups to provide for exporting; each must be followed by</td></tr>
<tr><td class="h"><a name="177"></a>177</td><td></td><td></td><td></td><td></td><td class="s"> either (a) a list of exports, possibly with arguments for each</td></tr>
<tr><td class="h"><a name="178"></a>178</td><td></td><td></td><td></td><td></td><td class="s"> export, or (b) a generator</td></tr>
<tr><td class="h"><a name="179"></a>179</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="180"></a>180</td><td></td><td></td><td></td><td></td><td class="s"> collectors - a list of names into which values are collected for use in</td></tr>
<tr><td class="h"><a name="181"></a>181</td><td></td><td></td><td></td><td></td><td class="s"> routine generation; each name may be followed by a validator</td></tr>
<tr><td class="h"><a name="182"></a>182</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="183"></a>183</td><td></td><td></td><td></td><td></td><td class="s">In addition to the basic options above, a few more advanced options may be</td></tr>
<tr><td class="h"><a name="184"></a>184</td><td></td><td></td><td></td><td></td><td class="s">passed:</td></tr>
<tr><td class="h"><a name="185"></a>185</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="186"></a>186</td><td></td><td></td><td></td><td></td><td class="s"> into_level - how far up the caller stack to look for a target (default 0)</td></tr>
<tr><td class="h"><a name="187"></a>187</td><td></td><td></td><td></td><td></td><td class="s"> into - an explicit target (package) into which to export routines</td></tr>
<tr><td class="h"><a name="188"></a>188</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="189"></a>189</td><td></td><td></td><td></td><td></td><td class="s">In other words: Sub::Exporter installs a C<import> routine which, when called,</td></tr>
<tr><td class="h"><a name="190"></a>190</td><td></td><td></td><td></td><td></td><td class="s">exports routines to the calling namespace. The C<into> and C<into_level></td></tr>
<tr><td class="h"><a name="191"></a>191</td><td></td><td></td><td></td><td></td><td class="s">options change where those exported routines are installed.</td></tr>
<tr><td class="h"><a name="192"></a>192</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="193"></a>193</td><td></td><td></td><td></td><td></td><td class="s"> generator - a callback used to produce the code that will be installed</td></tr>
<tr><td class="h"><a name="194"></a>194</td><td></td><td></td><td></td><td></td><td class="s"> default: Sub::Exporter::default_generator</td></tr>
<tr><td class="h"><a name="195"></a>195</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="196"></a>196</td><td></td><td></td><td></td><td></td><td class="s"> installer - a callback used to install the code produced by the generator</td></tr>
<tr><td class="h"><a name="197"></a>197</td><td></td><td></td><td></td><td></td><td class="s"> default: Sub::Exporter::default_installer</td></tr>
<tr><td class="h"><a name="198"></a>198</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="199"></a>199</td><td></td><td></td><td></td><td></td><td class="s">For information on how these callbacks are used, see the documentation for</td></tr>
<tr><td class="h"><a name="200"></a>200</td><td></td><td></td><td></td><td></td><td class="s">C<L</default_generator>> and C<L</default_installer>>.</td></tr>
<tr><td class="h"><a name="201"></a>201</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="202"></a>202</td><td></td><td></td><td></td><td></td><td class="s">=head2 Export Configuration</td></tr>
<tr><td class="h"><a name="203"></a>203</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="204"></a>204</td><td></td><td></td><td></td><td></td><td class="s">The C<exports> list may be provided as an array reference or a hash reference.</td></tr>
<tr><td class="h"><a name="205"></a>205</td><td></td><td></td><td></td><td></td><td class="s">The list is processed in such a way that the following are equivalent:</td></tr>
<tr><td class="h"><a name="206"></a>206</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="207"></a>207</td><td></td><td></td><td></td><td></td><td class="s"> { exports => [ qw(foo bar baz), quux => \&quux_generator ] }</td></tr>
<tr><td class="h"><a name="208"></a>208</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="209"></a>209</td><td></td><td></td><td></td><td></td><td class="s"> { exports =></td></tr>
<tr><td class="h"><a name="210"></a>210</td><td></td><td></td><td></td><td></td><td class="s"> { foo => undef, bar => undef, baz => undef, quux => \&quux_generator } }</td></tr>
<tr><td class="h"><a name="211"></a>211</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="212"></a>212</td><td></td><td></td><td></td><td></td><td class="s">Generators are code that return coderefs. They are called with four</td></tr>
<tr><td class="h"><a name="213"></a>213</td><td></td><td></td><td></td><td></td><td class="s">parameters:</td></tr>
<tr><td class="h"><a name="214"></a>214</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="215"></a>215</td><td></td><td></td><td></td><td></td><td class="s"> $class - the class whose exporter has been called (the exporting class)</td></tr>
<tr><td class="h"><a name="216"></a>216</td><td></td><td></td><td></td><td></td><td class="s"> $name - the name of the export for which the routine is being build</td></tr>
<tr><td class="h"><a name="217"></a>217</td><td></td><td></td><td></td><td></td><td class="s"> \%arg - the arguments passed for this export</td></tr>
<tr><td class="h"><a name="218"></a>218</td><td></td><td></td><td></td><td></td><td class="s"> \%col - the collections for this import</td></tr>
<tr><td class="h"><a name="219"></a>219</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="220"></a>220</td><td></td><td></td><td></td><td></td><td class="s">Given the configuration in the L</SYNOPSIS>, the following C<use> statement:</td></tr>
<tr><td class="h"><a name="221"></a>221</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="222"></a>222</td><td></td><td></td><td></td><td></td><td class="s"> use Text::Tweaker</td></tr>
<tr><td class="h"><a name="223"></a>223</td><td></td><td></td><td></td><td></td><td class="s"> reformat => { -as => 'make_narrow', width => 33 },</td></tr>
<tr><td class="h"><a name="224"></a>224</td><td></td><td></td><td></td><td></td><td class="s"> defaults => { eol => 'CR' };</td></tr>
<tr><td class="h"><a name="225"></a>225</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="226"></a>226</td><td></td><td></td><td></td><td></td><td class="s">would result in the following call to C<&build_reformatter>:</td></tr>
<tr><td class="h"><a name="227"></a>227</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="228"></a>228</td><td></td><td></td><td></td><td></td><td class="s"> my $code = build_reformatter(</td></tr>
<tr><td class="h"><a name="229"></a>229</td><td></td><td></td><td></td><td></td><td class="s"> 'Text::Tweaker',</td></tr>
<tr><td class="h"><a name="230"></a>230</td><td></td><td></td><td></td><td></td><td class="s"> 'reformat',</td></tr>
<tr><td class="h"><a name="231"></a>231</td><td></td><td></td><td></td><td></td><td class="s"> { width => 33 }, # note that -as is not passed in</td></tr>
<tr><td class="h"><a name="232"></a>232</td><td></td><td></td><td></td><td></td><td class="s"> { defaults => { eol => 'CR' } },</td></tr>
<tr><td class="h"><a name="233"></a>233</td><td></td><td></td><td></td><td></td><td class="s"> );</td></tr>
<tr><td class="h"><a name="234"></a>234</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="235"></a>235</td><td></td><td></td><td></td><td></td><td class="s">The returned coderef (C<$code>) would then be installed as C<make_narrow> in the</td></tr>
<tr><td class="h"><a name="236"></a>236</td><td></td><td></td><td></td><td></td><td class="s">calling package.</td></tr>
<tr><td class="h"><a name="237"></a>237</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="238"></a>238</td><td></td><td></td><td></td><td></td><td class="s">Instead of providing a coderef in the configuration, a reference to a method</td></tr>
<tr><td class="h"><a name="239"></a>239</td><td></td><td></td><td></td><td></td><td class="s">name may be provided. This method will then be called on the invocant of the</td></tr>
<tr><td class="h"><a name="240"></a>240</td><td></td><td></td><td></td><td></td><td class="s">C<import> method. (In this case, we do not pass the C<$class> parameter, as it</td></tr>
<tr><td class="h"><a name="241"></a>241</td><td></td><td></td><td></td><td></td><td class="s">would be redundant.)</td></tr>
<tr><td class="h"><a name="242"></a>242</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="243"></a>243</td><td></td><td></td><td></td><td></td><td class="s">=head2 Group Configuration</td></tr>
<tr><td class="h"><a name="244"></a>244</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="245"></a>245</td><td></td><td></td><td></td><td></td><td class="s">The C<groups> list can be passed in the same forms as C<exports>. Groups must</td></tr>
<tr><td class="h"><a name="246"></a>246</td><td></td><td></td><td></td><td></td><td class="s">have values to be meaningful, which may either list exports that make up the</td></tr>
<tr><td class="h"><a name="247"></a>247</td><td></td><td></td><td></td><td></td><td class="s">group (optionally with arguments) or may provide a way to build the group.</td></tr>
<tr><td class="h"><a name="248"></a>248</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="249"></a>249</td><td></td><td></td><td></td><td></td><td class="s">The simpler case is the first: a group definition is a list of exports. Here's</td></tr>
<tr><td class="h"><a name="250"></a>250</td><td></td><td></td><td></td><td></td><td class="s">the example that could go in exporter in the L</SYNOPSIS>.</td></tr>
<tr><td class="h"><a name="251"></a>251</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="252"></a>252</td><td></td><td></td><td></td><td></td><td class="s"> groups => {</td></tr>
<tr><td class="h"><a name="253"></a>253</td><td></td><td></td><td></td><td></td><td class="s"> default => [ qw(reformat) ],</td></tr>
<tr><td class="h"><a name="254"></a>254</td><td></td><td></td><td></td><td></td><td class="s"> shorteners => [ qw(squish trim) ],</td></tr>
<tr><td class="h"><a name="255"></a>255</td><td></td><td></td><td></td><td></td><td class="s"> email_safe => [</td></tr>
<tr><td class="h"><a name="256"></a>256</td><td></td><td></td><td></td><td></td><td class="s"> 'indent',</td></tr>
<tr><td class="h"><a name="257"></a>257</td><td></td><td></td><td></td><td></td><td class="s"> reformat => { -as => 'email_format', width => 72 }</td></tr>
<tr><td class="h"><a name="258"></a>258</td><td></td><td></td><td></td><td></td><td class="s"> ],</td></tr>
<tr><td class="h"><a name="259"></a>259</td><td></td><td></td><td></td><td></td><td class="s"> },</td></tr>
<tr><td class="h"><a name="260"></a>260</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="261"></a>261</td><td></td><td></td><td></td><td></td><td class="s">Groups are imported by specifying their name prefixed be either a dash or a</td></tr>
<tr><td class="h"><a name="262"></a>262</td><td></td><td></td><td></td><td></td><td class="s">colon. This line of code would import the C<shorteners> group:</td></tr>
<tr><td class="h"><a name="263"></a>263</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="264"></a>264</td><td></td><td></td><td></td><td></td><td class="s"> use Text::Tweaker qw(-shorteners);</td></tr>
<tr><td class="h"><a name="265"></a>265</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="266"></a>266</td><td></td><td></td><td></td><td></td><td class="s">Arguments passed to a group when importing are merged into the groups options</td></tr>
<tr><td class="h"><a name="267"></a>267</td><td></td><td></td><td></td><td></td><td class="s">and passed to any relevant generators. Groups can contain other groups, but</td></tr>
<tr><td class="h"><a name="268"></a>268</td><td></td><td></td><td></td><td></td><td class="s">looping group structures are ignored.</td></tr>
<tr><td class="h"><a name="269"></a>269</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="270"></a>270</td><td></td><td></td><td></td><td></td><td class="s">The other possible value for a group definition, a coderef, allows one</td></tr>
<tr><td class="h"><a name="271"></a>271</td><td></td><td></td><td></td><td></td><td class="s">generator to build several exportable routines simultaneously. This is useful</td></tr>
<tr><td class="h"><a name="272"></a>272</td><td></td><td></td><td></td><td></td><td class="s">when many routines must share enclosed lexical variables. The coderef must</td></tr>
<tr><td class="h"><a name="273"></a>273</td><td></td><td></td><td></td><td></td><td class="s">return a hash reference. The keys will be used as export names and the values</td></tr>
<tr><td class="h"><a name="274"></a>274</td><td></td><td></td><td></td><td></td><td class="s">are the subs that will be exported.</td></tr>
<tr><td class="h"><a name="275"></a>275</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="276"></a>276</td><td></td><td></td><td></td><td></td><td class="s">This example shows a simple use of the group generator.</td></tr>
<tr><td class="h"><a name="277"></a>277</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="278"></a>278</td><td></td><td></td><td></td><td></td><td class="s"> package Data::Crypto;</td></tr>
<tr><td class="h"><a name="279"></a>279</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter -setup => { groups => { cipher => \&build_cipher_group } };</td></tr>
<tr><td class="h"><a name="280"></a>280</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="281"></a>281</td><td></td><td></td><td></td><td></td><td class="s"> sub build_cipher_group {</td></tr>
<tr><td class="h"><a name="282"></a>282</td><td></td><td></td><td></td><td></td><td class="s"> my ($class, $group, $arg) = @_;</td></tr>
<tr><td class="h"><a name="283"></a>283</td><td></td><td></td><td></td><td></td><td class="s"> my ($encode, $decode) = build_codec($arg->{secret});</td></tr>
<tr><td class="h"><a name="284"></a>284</td><td></td><td></td><td></td><td></td><td class="s"> return { cipher => $encode, decipher => $decode };</td></tr>
<tr><td class="h"><a name="285"></a>285</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="286"></a>286</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="287"></a>287</td><td></td><td></td><td></td><td></td><td class="s">The C<cipher> and C<decipher> routines are built in a group because they are</td></tr>
<tr><td class="h"><a name="288"></a>288</td><td></td><td></td><td></td><td></td><td class="s">built together by code which encloses their secret in their environment.</td></tr>
<tr><td class="h"><a name="289"></a>289</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="290"></a>290</td><td></td><td></td><td></td><td></td><td class="s">=head3 Default Groups</td></tr>
<tr><td class="h"><a name="291"></a>291</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="292"></a>292</td><td></td><td></td><td></td><td></td><td class="s">If a module that uses Sub::Exporter is C<use>d with no arguments, it will try</td></tr>
<tr><td class="h"><a name="293"></a>293</td><td></td><td></td><td></td><td></td><td class="s">to export the group named C<default>. If that group has not been specifically</td></tr>
<tr><td class="h"><a name="294"></a>294</td><td></td><td></td><td></td><td></td><td class="s">configured, it will be empty, and nothing will happen.</td></tr>
<tr><td class="h"><a name="295"></a>295</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="296"></a>296</td><td></td><td></td><td></td><td></td><td class="s">Another group is also created if not defined: C<all>. The C<all> group</td></tr>
<tr><td class="h"><a name="297"></a>297</td><td></td><td></td><td></td><td></td><td class="s">contains all the exports from the exports list.</td></tr>
<tr><td class="h"><a name="298"></a>298</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="299"></a>299</td><td></td><td></td><td></td><td></td><td class="s">=head2 Collector Configuration</td></tr>
<tr><td class="h"><a name="300"></a>300</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="301"></a>301</td><td></td><td></td><td></td><td></td><td class="s">The C<collectors> entry in the exporter configuration gives names which, when</td></tr>
<tr><td class="h"><a name="302"></a>302</td><td></td><td></td><td></td><td></td><td class="s">found in the import call, have their values collected and passed to every</td></tr>
<tr><td class="h"><a name="303"></a>303</td><td></td><td></td><td></td><td></td><td class="s">generator.</td></tr>
<tr><td class="h"><a name="304"></a>304</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="305"></a>305</td><td></td><td></td><td></td><td></td><td class="s">For example, the C<build_analyzer> generator that we saw above could be</td></tr>
<tr><td class="h"><a name="306"></a>306</td><td></td><td></td><td></td><td></td><td class="s">rewritten as:</td></tr>
<tr><td class="h"><a name="307"></a>307</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="308"></a>308</td><td></td><td></td><td></td><td></td><td class="s"> sub build_analyzer {</td></tr>
<tr><td class="h"><a name="309"></a>309</td><td></td><td></td><td></td><td></td><td class="s"> my ($class, $name, $arg, $col) = @_;</td></tr>
<tr><td class="h"><a name="310"></a>310</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="311"></a>311</td><td></td><td></td><td></td><td></td><td class="s"> return sub {</td></tr>
<tr><td class="h"><a name="312"></a>312</td><td></td><td></td><td></td><td></td><td class="s"> my $data = shift;</td></tr>
<tr><td class="h"><a name="313"></a>313</td><td></td><td></td><td></td><td></td><td class="s"> my $tolerance = shift || $arg->{tolerance} || $col->{defaults}{tolerance}; </td></tr>
<tr><td class="h"><a name="314"></a>314</td><td></td><td></td><td></td><td></td><td class="s"> my $passes = shift || $arg->{passes} || $col->{defaults}{passes}; </td></tr>
<tr><td class="h"><a name="315"></a>315</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="316"></a>316</td><td></td><td></td><td></td><td></td><td class="s"> analyze($data, $tolerance, $passes);</td></tr>
<tr><td class="h"><a name="317"></a>317</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="318"></a>318</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="319"></a>319</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="320"></a>320</td><td></td><td></td><td></td><td></td><td class="s">That would allow the import to specify global defaults for his imports:</td></tr>
<tr><td class="h"><a name="321"></a>321</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="322"></a>322</td><td></td><td></td><td></td><td></td><td class="s"> use Data::Analyze</td></tr>
<tr><td class="h"><a name="323"></a>323</td><td></td><td></td><td></td><td></td><td class="s"> 'analyze',</td></tr>
<tr><td class="h"><a name="324"></a>324</td><td></td><td></td><td></td><td></td><td class="s"> analyze => { tolerance => 0.10, -as => analyze10 },</td></tr>
<tr><td class="h"><a name="325"></a>325</td><td></td><td></td><td></td><td></td><td class="s"> analyze => { tolerance => 0.15, passes => 50, -as => analyze50 },</td></tr>
<tr><td class="h"><a name="326"></a>326</td><td></td><td></td><td></td><td></td><td class="s"> defaults => { passes => 10 };</td></tr>
<tr><td class="h"><a name="327"></a>327</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="328"></a>328</td><td></td><td></td><td></td><td></td><td class="s"> my $A = analyze10($data); # equivalent to analyze($data, 0.10, 10);</td></tr>
<tr><td class="h"><a name="329"></a>329</td><td></td><td></td><td></td><td></td><td class="s"> my $C = analyze50($data); # equivalent to analyze($data, 0.15, 10);</td></tr>
<tr><td class="h"><a name="330"></a>330</td><td></td><td></td><td></td><td></td><td class="s"> my $B = analyze($data, 0.20); # equivalent to analyze($data, 0.20, 10);</td></tr>
<tr><td class="h"><a name="331"></a>331</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="332"></a>332</td><td></td><td></td><td></td><td></td><td class="s">If values are provided in the C<collectors> list during exporter setup, they</td></tr>
<tr><td class="h"><a name="333"></a>333</td><td></td><td></td><td></td><td></td><td class="s">must be code references, and are used to validate the importer's values. The</td></tr>
<tr><td class="h"><a name="334"></a>334</td><td></td><td></td><td></td><td></td><td class="s">validator is called when the collection is found, and if it returns false, an</td></tr>
<tr><td class="h"><a name="335"></a>335</td><td></td><td></td><td></td><td></td><td class="s">exception is thrown. We could ensure that no one tries to set a global data</td></tr>
<tr><td class="h"><a name="336"></a>336</td><td></td><td></td><td></td><td></td><td class="s">default easily:</td></tr>
<tr><td class="h"><a name="337"></a>337</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="338"></a>338</td><td></td><td></td><td></td><td></td><td class="s"> collectors => { defaults => sub { return (exists $_[0]->{data}) ? 0 : 1 } }</td></tr>
<tr><td class="h"><a name="339"></a>339</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="340"></a>340</td><td></td><td></td><td></td><td></td><td class="s">Collector coderefs can also be used as hooks to perform arbitrary actions</td></tr>
<tr><td class="h"><a name="341"></a>341</td><td></td><td></td><td></td><td></td><td class="s">before anything is exported.</td></tr>
<tr><td class="h"><a name="342"></a>342</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="343"></a>343</td><td></td><td></td><td></td><td></td><td class="s">When the coderef is called, it is passed the value of the collection and a</td></tr>
<tr><td class="h"><a name="344"></a>344</td><td></td><td></td><td></td><td></td><td class="s">hashref containing the following entries:</td></tr>
<tr><td class="h"><a name="345"></a>345</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="346"></a>346</td><td></td><td></td><td></td><td></td><td class="s"> name - the name of the collector</td></tr>
<tr><td class="h"><a name="347"></a>347</td><td></td><td></td><td></td><td></td><td class="s"> config - the exporter configuration (hashref)</td></tr>
<tr><td class="h"><a name="348"></a>348</td><td></td><td></td><td></td><td></td><td class="s"> import_args - the arguments passed to the exporter, sans collections (aref)</td></tr>
<tr><td class="h"><a name="349"></a>349</td><td></td><td></td><td></td><td></td><td class="s"> class - the package on which the importer was called</td></tr>
<tr><td class="h"><a name="350"></a>350</td><td></td><td></td><td></td><td></td><td class="s"> into - the package into which exports will be exported</td></tr>
<tr><td class="h"><a name="351"></a>351</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="352"></a>352</td><td></td><td></td><td></td><td></td><td class="s">Collectors with all-caps names (that is, made up of underscore or capital A</td></tr>
<tr><td class="h"><a name="353"></a>353</td><td></td><td></td><td></td><td></td><td class="s">through Z) are reserved for special use. The only currently implemented</td></tr>
<tr><td class="h"><a name="354"></a>354</td><td></td><td></td><td></td><td></td><td class="s">special collector is C<INIT>, whose hook (if present in the exporter</td></tr>
<tr><td class="h"><a name="355"></a>355</td><td></td><td></td><td></td><td></td><td class="s">configuration) is always run before any other hook.</td></tr>
<tr><td class="h"><a name="356"></a>356</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="357"></a>357</td><td></td><td></td><td></td><td></td><td class="s">=head1 CALLING THE EXPORTER</td></tr>
<tr><td class="h"><a name="358"></a>358</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="359"></a>359</td><td></td><td></td><td></td><td></td><td class="s">Arguments to the exporter (that is, the arguments after the module name in a</td></tr>
<tr><td class="h"><a name="360"></a>360</td><td></td><td></td><td></td><td></td><td class="s">C<use> statement) are parsed as follows:</td></tr>
<tr><td class="h"><a name="361"></a>361</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="362"></a>362</td><td></td><td></td><td></td><td></td><td class="s">First, the collectors gather any collections found in the arguments. Any</td></tr>
<tr><td class="h"><a name="363"></a>363</td><td></td><td></td><td></td><td></td><td class="s">reference type may be given as the value for a collector. For each collection</td></tr>
<tr><td class="h"><a name="364"></a>364</td><td></td><td></td><td></td><td></td><td class="s">given in the arguments, its validator (if any) is called. </td></tr>
<tr><td class="h"><a name="365"></a>365</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="366"></a>366</td><td></td><td></td><td></td><td></td><td class="s">Next, groups are expanded. If the group is implemented by a group generator,</td></tr>
<tr><td class="h"><a name="367"></a>367</td><td></td><td></td><td></td><td></td><td class="s">the generator is called. There are two special arguments which, if given to a</td></tr>
<tr><td class="h"><a name="368"></a>368</td><td></td><td></td><td></td><td></td><td class="s">group, have special meaning:</td></tr>
<tr><td class="h"><a name="369"></a>369</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="370"></a>370</td><td></td><td></td><td></td><td></td><td class="s"> -prefix - a string to prepend to any export imported from this group</td></tr>
<tr><td class="h"><a name="371"></a>371</td><td></td><td></td><td></td><td></td><td class="s"> -suffix - a string to append to any export imported from this group</td></tr>
<tr><td class="h"><a name="372"></a>372</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="373"></a>373</td><td></td><td></td><td></td><td></td><td class="s">Finally, individual export generators are called and all subs, generated or</td></tr>
<tr><td class="h"><a name="374"></a>374</td><td></td><td></td><td></td><td></td><td class="s">otherwise, are installed in the calling package. There is only one special</td></tr>
<tr><td class="h"><a name="375"></a>375</td><td></td><td></td><td></td><td></td><td class="s">argument for export generators:</td></tr>
<tr><td class="h"><a name="376"></a>376</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="377"></a>377</td><td></td><td></td><td></td><td></td><td class="s"> -as - where to install the exported sub</td></tr>
<tr><td class="h"><a name="378"></a>378</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="379"></a>379</td><td></td><td></td><td></td><td></td><td class="s">Normally, C<-as> will contain an alternate name for the routine. It may,</td></tr>
<tr><td class="h"><a name="380"></a>380</td><td></td><td></td><td></td><td></td><td class="s">however, contain a reference to a scalar. If that is the case, a reference the</td></tr>
<tr><td class="h"><a name="381"></a>381</td><td></td><td></td><td></td><td></td><td class="s">generated routine will be placed in the scalar referenced by C<-as>. It will</td></tr>
<tr><td class="h"><a name="382"></a>382</td><td></td><td></td><td></td><td></td><td class="s">not be installed into the calling package.</td></tr>
<tr><td class="h"><a name="383"></a>383</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="384"></a>384</td><td></td><td></td><td></td><td></td><td class="s">=head2 Special Exporter Arguments</td></tr>
<tr><td class="h"><a name="385"></a>385</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="386"></a>386</td><td></td><td></td><td></td><td></td><td class="s">The generated exporter accept some special options, which may be passed as the</td></tr>
<tr><td class="h"><a name="387"></a>387</td><td></td><td></td><td></td><td></td><td class="s">first argument, in a hashref.</td></tr>
<tr><td class="h"><a name="388"></a>388</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="389"></a>389</td><td></td><td></td><td></td><td></td><td class="s">These options are:</td></tr>
<tr><td class="h"><a name="390"></a>390</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="391"></a>391</td><td></td><td></td><td></td><td></td><td class="s"> into_level</td></tr>
<tr><td class="h"><a name="392"></a>392</td><td></td><td></td><td></td><td></td><td class="s"> into</td></tr>
<tr><td class="h"><a name="393"></a>393</td><td></td><td></td><td></td><td></td><td class="s"> generator</td></tr>
<tr><td class="h"><a name="394"></a>394</td><td></td><td></td><td></td><td></td><td class="s"> installer</td></tr>
<tr><td class="h"><a name="395"></a>395</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="396"></a>396</td><td></td><td></td><td></td><td></td><td class="s">These override the same-named configuration options described in L</EXPORTER</td></tr>
<tr><td class="h"><a name="397"></a>397</td><td></td><td></td><td></td><td></td><td class="s">CONFIGURATION>.</td></tr>
<tr><td class="h"><a name="398"></a>398</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="399"></a>399</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="400"></a>400</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="401"></a>401</td><td></td><td></td><td></td><td></td><td class="s"># Given a potential import name, this returns the group name -- if it's got a</td></tr>
<tr><td class="h"><a name="402"></a>402</td><td></td><td></td><td></td><td></td><td class="s"># group prefix.</td></tr>
<tr><td class="h"><a name="403"></a>403</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 109µs within Sub::Exporter::_group_name which was called 49 times, avg 2µs/call:
# 42 times (98µs+0s) by Sub::Exporter::_expand_groups at <a href="Sub-Exporter-pm-line.html#421">line 421</a>, avg 2µs/call
# 7 times (10µs+0s) by Sub::Exporter::_expand_group at <a href="Sub-Exporter-pm-line.html#461">line 461</a>, avg 1µs/call</div></div>sub _group_name {</td></tr>
<tr><td class="h"><a name="404"></a>404</td><td class="c0">49</td><td class="c3"><span title="Avg 304ns">15µs</span></td><td></td><td></td><td class="s"> my ($name) = @_;</td></tr>
<tr><td class="h"><a name="405"></a>405</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="406"></a>406</td><td class="c0">49</td><td class="c0"><span title="Avg 2µs">96µs</span></td><td></td><td></td><td class="s"> return if (index q{-:}, (substr $name, 0, 1)) == -1;</td></tr>
<tr><td class="h"><a name="407"></a>407</td><td class="c1">14</td><td class="c0"><span title="Avg 2µs">34µs</span></td><td></td><td></td><td class="s"> return substr $name, 1;</td></tr>
<tr><td class="h"><a name="408"></a>408</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="409"></a>409</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="410"></a>410</td><td></td><td></td><td></td><td></td><td class="s"># \@groups is a canonicalized opt list of exports and groups this returns</td></tr>
<tr><td class="h"><a name="411"></a>411</td><td></td><td></td><td></td><td></td><td class="s"># another canonicalized opt list with groups replaced with relevant exports.</td></tr>
<tr><td class="h"><a name="412"></a>412</td><td></td><td></td><td></td><td></td><td class="s"># \%seen is groups we've already expanded and can ignore.</td></tr>
<tr><td class="h"><a name="413"></a>413</td><td></td><td></td><td></td><td></td><td class="s"># \%merge is merged options from the group we're descending through.</td></tr>
<tr><td class="h"><a name="414"></a>414</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 759µs (342+418) within Sub::Exporter::_expand_groups which was called 18 times, avg 42µs/call:
# 11 times (184µs+575µs) by Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:756] at <a href="Sub-Exporter-pm-line.html#742">line 742</a>, avg 69µs/call
# 7 times (158µs+-158µs) by Sub::Exporter::_expand_group at <a href="Sub-Exporter-pm-line.html#509">line 509</a>, avg 0s/call</div></div>sub _expand_groups {</td></tr>
<tr><td class="h"><a name="415"></a>415</td><td class="c0">18</td><td class="c2"><span title="Avg 956ns">17µs</span></td><td></td><td></td><td class="s"> my ($class, $config, $groups, $collection, $seen, $merge) = @_;</td></tr>
<tr><td class="h"><a name="416"></a>416</td><td class="c0">18</td><td class="c3"><span title="Avg 322ns">6µs</span></td><td></td><td></td><td class="s"> $seen ||= {};</td></tr>
<tr><td class="h"><a name="417"></a>417</td><td class="c0">18</td><td class="c3"><span title="Avg 172ns">3µs</span></td><td></td><td></td><td class="s"> $merge ||= {};</td></tr>
<tr><td class="h"><a name="418"></a>418</td><td class="c0">18</td><td class="c3"><span title="Avg 711ns">13µs</span></td><td></td><td></td><td class="s"> my @groups = @$groups;</td></tr>
<tr><td class="h"><a name="419"></a>419</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="420"></a>420</td><td class="c0">18</td><td class="c0"><span title="Avg 3µs">50µs</span></td><td></td><td></td><td class="s"> for my $i (reverse 0 .. $#groups) {</td></tr>
<tr><td class="h"><a name="421"></a>421</td><td class="c0">42</td><td class="c0"><span title="Avg 2µs">67µs</span></td><td class="c0">42</td><td class="c3">98µs</td><td class="s"> if (my $group_name = _group_name($groups[$i][0])) {<div class="calls"><div class="calls_out"> # spent 98µs making 42 calls to <a href="Sub-Exporter-pm-line.html#403">Sub::Exporter::_group_name</a>, avg 2µs/call</div></div></td></tr>
<tr><td class="h"><a name="422"></a>422</td><td class="c3">7</td><td class="c3"><span title="Avg 1µs">9µs</span></td><td></td><td></td><td class="s"> my $seen = { %$seen }; # faux-dynamic scoping</td></tr>
<tr><td class="h"><a name="423"></a>423</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="424"></a>424</td><td class="c3">7</td><td class="c0"><span title="Avg 4µs">30µs</span></td><td class="c2">7</td><td class="c0">522µs</td><td class="s"> splice @groups, $i, 1,<div class="calls"><div class="calls_out"> # spent 806µs making 7 calls to <a href="Sub-Exporter-pm-line.html#456">Sub::Exporter::_expand_group</a>, avg 115µs/call, recursion: max depth 1, time 285µs</div></div></td></tr>
<tr><td class="h"><a name="425"></a>425</td><td></td><td></td><td></td><td></td><td class="s"> _expand_group($class, $config, $groups[$i], $collection, $seen, $merge);</td></tr>
<tr><td class="h"><a name="426"></a>426</td><td></td><td></td><td></td><td></td><td class="s"> } else {</td></tr>
<tr><td class="h"><a name="427"></a>427</td><td></td><td></td><td></td><td></td><td class="s"> # there's nothing to munge in this export's args</td></tr>
<tr><td class="h"><a name="428"></a>428</td><td class="c0">35</td><td class="c0"><span title="Avg 943ns">33µs</span></td><td></td><td></td><td class="s"> next unless my %merge = %$merge;</td></tr>
<tr><td class="h"><a name="429"></a>429</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="430"></a>430</td><td></td><td></td><td></td><td></td><td class="s"> # we have things to merge in; do so</td></tr>
<tr><td class="h"><a name="431"></a>431</td><td></td><td></td><td></td><td></td><td class="s"> my $prefix = (delete $merge{-prefix}) || '';</td></tr>
<tr><td class="h"><a name="432"></a>432</td><td></td><td></td><td></td><td></td><td class="s"> my $suffix = (delete $merge{-suffix}) || '';</td></tr>
<tr><td class="h"><a name="433"></a>433</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="434"></a>434</td><td></td><td></td><td></td><td></td><td class="s"> if (</td></tr>
<tr><td class="h"><a name="435"></a>435</td><td></td><td></td><td></td><td></td><td class="s"> Params::Util::_CODELIKE($groups[$i][1]) ## no critic Private</td></tr>
<tr><td class="h"><a name="436"></a>436</td><td></td><td></td><td></td><td></td><td class="s"> or</td></tr>
<tr><td class="h"><a name="437"></a>437</td><td></td><td></td><td></td><td></td><td class="s"> Params::Util::_SCALAR0($groups[$i][1]) ## no critic Private</td></tr>
<tr><td class="h"><a name="438"></a>438</td><td></td><td></td><td></td><td></td><td class="s"> ) {</td></tr>
<tr><td class="h"><a name="439"></a>439</td><td></td><td></td><td></td><td></td><td class="s"> # this entry was build by a group generator</td></tr>
<tr><td class="h"><a name="440"></a>440</td><td></td><td></td><td></td><td></td><td class="s"> $groups[$i][0] = $prefix . $groups[$i][0] . $suffix;</td></tr>
<tr><td class="h"><a name="441"></a>441</td><td></td><td></td><td></td><td></td><td class="s"> } else {</td></tr>
<tr><td class="h"><a name="442"></a>442</td><td></td><td></td><td></td><td></td><td class="s"> my $as</td></tr>
<tr><td class="h"><a name="443"></a>443</td><td></td><td></td><td></td><td></td><td class="s"> = ref $groups[$i][1]{-as} ? $groups[$i][1]{-as}</td></tr>
<tr><td class="h"><a name="444"></a>444</td><td></td><td></td><td></td><td></td><td class="s"> : $groups[$i][1]{-as} ? $prefix . $groups[$i][1]{-as} . $suffix</td></tr>
<tr><td class="h"><a name="445"></a>445</td><td></td><td></td><td></td><td></td><td class="s"> : $prefix . $groups[$i][0] . $suffix;</td></tr>
<tr><td class="h"><a name="446"></a>446</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="447"></a>447</td><td></td><td></td><td></td><td></td><td class="s"> $groups[$i][1] = { %{ $groups[$i][1] }, %merge, -as => $as };</td></tr>
<tr><td class="h"><a name="448"></a>448</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="449"></a>449</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="450"></a>450</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="451"></a>451</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="452"></a>452</td><td class="c0">18</td><td class="c0"><span title="Avg 3µs">51µs</span></td><td></td><td></td><td class="s"> return \@groups;</td></tr>
<tr><td class="h"><a name="453"></a>453</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="454"></a>454</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="455"></a>455</td><td></td><td></td><td></td><td></td><td class="s"># \@group is a name/value pair from an opt list.</td></tr>
<tr><td class="h"><a name="456"></a>456</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 522µs (158+363) within Sub::Exporter::_expand_group which was called 7 times, avg 75µs/call:
# 7 times (158µs+363µs) by Sub::Exporter::_expand_groups at <a href="Sub-Exporter-pm-line.html#424">line 424</a>, avg 75µs/call</div></div>sub _expand_group {</td></tr>
<tr><td class="h"><a name="457"></a>457</td><td class="c3">7</td><td class="c3"><span title="Avg 1µs">10µs</span></td><td></td><td></td><td class="s"> my ($class, $config, $group, $collection, $seen, $merge) = @_;</td></tr>
<tr><td class="h"><a name="458"></a>458</td><td class="c3">7</td><td class="c3"><span title="Avg 286ns">2µs</span></td><td></td><td></td><td class="s"> $merge ||= {};</td></tr>
<tr><td class="h"><a name="459"></a>459</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="460"></a>460</td><td class="c3">7</td><td class="c3"><span title="Avg 743ns">5µs</span></td><td></td><td></td><td class="s"> my ($group_name, $group_arg) = @$group;</td></tr>
<tr><td class="h"><a name="461"></a>461</td><td class="c3">7</td><td class="c3"><span title="Avg 1µs">8µs</span></td><td class="c2">7</td><td class="c3">10µs</td><td class="s"> $group_name = _group_name($group_name);<div class="calls"><div class="calls_out"> # spent 10µs making 7 calls to <a href="Sub-Exporter-pm-line.html#403">Sub::Exporter::_group_name</a>, avg 1µs/call</div></div></td></tr>
<tr><td class="h"><a name="462"></a>462</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="463"></a>463</td><td class="c3">7</td><td class="c3"><span title="Avg 1µs">8µs</span></td><td></td><td></td><td class="s"> Carp::croak qq(group "$group_name" is not exported by the $class module)</td></tr>
<tr><td class="h"><a name="464"></a>464</td><td></td><td></td><td></td><td></td><td class="s"> unless exists $config->{groups}{$group_name};</td></tr>
<tr><td class="h"><a name="465"></a>465</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="466"></a>466</td><td class="c3">7</td><td class="c3"><span title="Avg 1µs">8µs</span></td><td></td><td></td><td class="s"> return if $seen->{$group_name}++;</td></tr>
<tr><td class="h"><a name="467"></a>467</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="468"></a>468</td><td class="c3">7</td><td class="c3"><span title="Avg 300ns">2µs</span></td><td></td><td></td><td class="s"> if (ref $group_arg) {</td></tr>
<tr><td class="h"><a name="469"></a>469</td><td></td><td></td><td></td><td></td><td class="s"> my $prefix = (delete $merge->{-prefix}||'') . ($group_arg->{-prefix}||'');</td></tr>
<tr><td class="h"><a name="470"></a>470</td><td></td><td></td><td></td><td></td><td class="s"> my $suffix = ($group_arg->{-suffix}||'') . (delete $merge->{-suffix}||'');</td></tr>
<tr><td class="h"><a name="471"></a>471</td><td></td><td></td><td></td><td></td><td class="s"> $merge = {</td></tr>
<tr><td class="h"><a name="472"></a>472</td><td></td><td></td><td></td><td></td><td class="s"> %$merge,</td></tr>
<tr><td class="h"><a name="473"></a>473</td><td></td><td></td><td></td><td></td><td class="s"> %$group_arg,</td></tr>
<tr><td class="h"><a name="474"></a>474</td><td></td><td></td><td></td><td></td><td class="s"> ($prefix ? (-prefix => $prefix) : ()),</td></tr>
<tr><td class="h"><a name="475"></a>475</td><td></td><td></td><td></td><td></td><td class="s"> ($suffix ? (-suffix => $suffix) : ()),</td></tr>
<tr><td class="h"><a name="476"></a>476</td><td></td><td></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="477"></a>477</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="478"></a>478</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="479"></a>479</td><td class="c3">7</td><td class="c3"><span title="Avg 886ns">6µs</span></td><td></td><td></td><td class="s"> my $exports = $config->{groups}{$group_name};</td></tr>
<tr><td class="h"><a name="480"></a>480</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="481"></a>481</td><td class="c3">7</td><td class="c0"><span title="Avg 7µs">51µs</span></td><td class="c0">14</td><td class="c3">20µs</td><td class="s"> if (<div class="calls"><div class="calls_out"> # spent 12µs making 7 calls to <a href="Params-Util-pm-line.html#Params__Util___CODELIKE">Params::Util::_CODELIKE</a>, avg 2µs/call
# spent 7µs making 7 calls to <a href="Params-Util-pm-line.html#Params__Util___SCALAR0">Params::Util::_SCALAR0</a>, avg 1µs/call</div></div></td></tr>
<tr><td class="h"><a name="482"></a>482</td><td></td><td></td><td></td><td></td><td class="s"> Params::Util::_CODELIKE($exports) ## no critic Private</td></tr>
<tr><td class="h"><a name="483"></a>483</td><td></td><td></td><td></td><td></td><td class="s"> or</td></tr>
<tr><td class="h"><a name="484"></a>484</td><td></td><td></td><td></td><td></td><td class="s"> Params::Util::_SCALAR0($exports) ## no critic Private</td></tr>
<tr><td class="h"><a name="485"></a>485</td><td></td><td></td><td></td><td></td><td class="s"> ) {</td></tr>
<tr><td class="h"><a name="486"></a>486</td><td></td><td></td><td></td><td></td><td class="s"> # I'm not very happy with this code for hiding -prefix and -suffix, but</td></tr>
<tr><td class="h"><a name="487"></a>487</td><td></td><td></td><td></td><td></td><td class="s"> # it's needed, and I'm not sure, offhand, how to make it better.</td></tr>
<tr><td class="h"><a name="488"></a>488</td><td></td><td></td><td></td><td></td><td class="s"> # -- rjbs, 2006-12-05</td></tr>
<tr><td class="h"><a name="489"></a>489</td><td></td><td></td><td></td><td></td><td class="s"> my $group_arg = $merge ? { %$merge } : {};</td></tr>
<tr><td class="h"><a name="490"></a>490</td><td></td><td></td><td></td><td></td><td class="s"> delete $group_arg->{-prefix};</td></tr>
<tr><td class="h"><a name="491"></a>491</td><td></td><td></td><td></td><td></td><td class="s"> delete $group_arg->{-suffix};</td></tr>
<tr><td class="h"><a name="492"></a>492</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="493"></a>493</td><td></td><td></td><td></td><td></td><td class="s"> my $group = Params::Util::_CODELIKE($exports) ## no critic Private</td></tr>
<tr><td class="h"><a name="494"></a>494</td><td></td><td></td><td></td><td></td><td class="s"> ? $exports->($class, $group_name, $group_arg, $collection)</td></tr>
<tr><td class="h"><a name="495"></a>495</td><td></td><td></td><td></td><td></td><td class="s"> : $class->$$exports($group_name, $group_arg, $collection);</td></tr>
<tr><td class="h"><a name="496"></a>496</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="497"></a>497</td><td></td><td></td><td></td><td></td><td class="s"> Carp::croak qq(group generator "$group_name" did not return a hashref)</td></tr>
<tr><td class="h"><a name="498"></a>498</td><td></td><td></td><td></td><td></td><td class="s"> if ref $group ne 'HASH';</td></tr>
<tr><td class="h"><a name="499"></a>499</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="500"></a>500</td><td></td><td></td><td></td><td></td><td class="s"> my $stuff = [ map { [ $_ => $group->{$_} ] } keys %$group ];</td></tr>
<tr><td class="h"><a name="501"></a>501</td><td></td><td></td><td></td><td></td><td class="s"> return @{</td></tr>
<tr><td class="h"><a name="502"></a>502</td><td></td><td></td><td></td><td></td><td class="s"> _expand_groups($class, $config, $stuff, $collection, $seen, $merge)</td></tr>
<tr><td class="h"><a name="503"></a>503</td><td></td><td></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="504"></a>504</td><td></td><td></td><td></td><td></td><td class="s"> } else {</td></tr>
<tr><td class="h"><a name="505"></a>505</td><td class="c3">7</td><td class="c3"><span title="Avg 2µs">12µs</span></td><td class="c2">7</td><td class="c3">131µs</td><td class="s"> $exports<div class="calls"><div class="calls_out"> # spent 131µs making 7 calls to <a href="Data-OptList-pm-line.html#152">Data::OptList::mkopt</a>, avg 19µs/call</div></div></td></tr>
<tr><td class="h"><a name="506"></a>506</td><td></td><td></td><td></td><td></td><td class="s"> = Data::OptList::mkopt($exports, "$group_name exports");</td></tr>
<tr><td class="h"><a name="507"></a>507</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="508"></a>508</td><td></td><td></td><td></td><td></td><td class="s"> return @{</td></tr>
<tr><td class="h"><a name="509"></a>509</td><td class="c3">7</td><td class="c0"><span title="Avg 6µs">41µs</span></td><td class="c2">7</td><td class="c3">0s</td><td class="s"> _expand_groups($class, $config, $exports, $collection, $seen, $merge)<div class="calls"><div class="calls_out"> # spent 487µs making 7 calls to <a href="Sub-Exporter-pm-line.html#414">Sub::Exporter::_expand_groups</a>, avg 70µs/call, recursion: max depth 2, time 487µs</div></div></td></tr>
<tr><td class="h"><a name="510"></a>510</td><td></td><td></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="511"></a>511</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="512"></a>512</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="513"></a>513</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="514"></a>514</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 123µs within Sub::Exporter::_mk_collection_builder which was called 11 times, avg 11µs/call:
# 11 times (123µs+0s) by Sub::Exporter::_collect_collections at <a href="Sub-Exporter-pm-line.html#560">line 560</a>, avg 11µs/call</div></div>sub _mk_collection_builder {</td></tr>
<tr><td class="h"><a name="515"></a>515</td><td class="c1">11</td><td class="c3"><span title="Avg 764ns">8µs</span></td><td></td><td></td><td class="s"> my ($col, $etc) = @_;</td></tr>
<tr><td class="h"><a name="516"></a>516</td><td class="c1">11</td><td class="c3"><span title="Avg 1µs">11µs</span></td><td></td><td></td><td class="s"> my ($config, $import_args, $class, $into) = @$etc;</td></tr>
<tr><td class="h"><a name="517"></a>517</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="518"></a>518</td><td class="c1">11</td><td class="c3"><span title="Avg 145ns">2µs</span></td><td></td><td></td><td class="s"> my %seen;</td></tr>
<tr><td class="h"><a name="519"></a>519</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 31µs (22+9) within Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:544] which was called
# once (22µs+9µs) by Sub::Exporter::_collect_collections at <a href="Sub-Exporter-pm-line.html#562">line 562</a></div></div> sub {</td></tr>
<tr><td class="h"><a name="520"></a>520</td><td class="c3">1</td><td class="c3"><span title="Avg 400ns">400ns</span></td><td></td><td></td><td class="s"> my ($collection) = @_;</td></tr>
<tr><td class="h"><a name="521"></a>521</td><td class="c3">1</td><td class="c3"><span title="Avg 700ns">700ns</span></td><td></td><td></td><td class="s"> my ($name, $value) = @$collection;</td></tr>
<tr><td class="h"><a name="522"></a>522</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="523"></a>523</td><td class="c3">1</td><td class="c3"><span title="Avg 900ns">900ns</span></td><td></td><td></td><td class="s"> Carp::croak "collection $name provided multiple times in import"</td></tr>
<tr><td class="h"><a name="524"></a>524</td><td></td><td></td><td></td><td></td><td class="s"> if $seen{ $name }++;</td></tr>
<tr><td class="h"><a name="525"></a>525</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="526"></a>526</td><td class="c3">1</td><td class="c3"><span title="Avg 1µs">1µs</span></td><td></td><td></td><td class="s"> if (ref(my $hook = $config->{collectors}{$name})) {</td></tr>
<tr><td class="h"><a name="527"></a>527</td><td class="c3">1</td><td class="c3"><span title="Avg 2µs">2µs</span></td><td></td><td></td><td class="s"> my $arg = {</td></tr>
<tr><td class="h"><a name="528"></a>528</td><td></td><td></td><td></td><td></td><td class="s"> name => $name,</td></tr>
<tr><td class="h"><a name="529"></a>529</td><td></td><td></td><td></td><td></td><td class="s"> config => $config,</td></tr>
<tr><td class="h"><a name="530"></a>530</td><td></td><td></td><td></td><td></td><td class="s"> import_args => $import_args,</td></tr>
<tr><td class="h"><a name="531"></a>531</td><td></td><td></td><td></td><td></td><td class="s"> class => $class,</td></tr>
<tr><td class="h"><a name="532"></a>532</td><td></td><td></td><td></td><td></td><td class="s"> into => $into,</td></tr>
<tr><td class="h"><a name="533"></a>533</td><td></td><td></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="534"></a>534</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="535"></a>535</td><td class="c3">1</td><td class="c3"><span title="Avg 2µs">2µs</span></td><td></td><td></td><td class="s"> my $error_msg = "collection $name failed validation";</td></tr>
<tr><td class="h"><a name="536"></a>536</td><td class="c3">1</td><td class="c3"><span title="Avg 8µs">8µs</span></td><td class="c3">1</td><td class="c3">900ns</td><td class="s"> if (Params::Util::_SCALAR0($hook)) { ## no critic Private<div class="calls"><div class="calls_out"> # spent 900ns making 1 call to <a href="Params-Util-pm-line.html#Params__Util___SCALAR0">Params::Util::_SCALAR0</a></div></div></td></tr>
<tr><td class="h"><a name="537"></a>537</td><td></td><td></td><td></td><td></td><td class="s"> Carp::croak $error_msg unless $class->$$hook($value, $arg);</td></tr>
<tr><td class="h"><a name="538"></a>538</td><td></td><td></td><td></td><td></td><td class="s"> } else {</td></tr>
<tr><td class="h"><a name="539"></a>539</td><td class="c3">1</td><td class="c3"><span title="Avg 1µs">1µs</span></td><td class="c3">1</td><td class="c3">8µs</td><td class="s"> Carp::croak $error_msg unless $hook->($value, $arg);<div class="calls"><div class="calls_out"> # spent 8µs making 1 call to <a href="Sub-Exporter-pm-line.html#945">Sub::Exporter::_setup</a></div></div></td></tr>
<tr><td class="h"><a name="540"></a>540</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="541"></a>541</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="542"></a>542</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="543"></a>543</td><td class="c3">1</td><td class="c3"><span title="Avg 5µs">5µs</span></td><td></td><td></td><td class="s"> $col->{ $name } = $value;</td></tr>
<tr><td class="h"><a name="544"></a>544</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="545"></a>545</td><td class="c1">11</td><td class="c0"><span title="Avg 10µs">112µs</span></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="546"></a>546</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="547"></a>547</td><td></td><td></td><td></td><td></td><td class="s"># Given a config and pre-canonicalized importer args, remove collections from</td></tr>
<tr><td class="h"><a name="548"></a>548</td><td></td><td></td><td></td><td></td><td class="s"># the args and return them.</td></tr>
<tr><td class="h"><a name="549"></a>549</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 397µs (244+153) within Sub::Exporter::_collect_collections which was called 11 times, avg 36µs/call:
# 11 times (244µs+153µs) by Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:756] at <a href="Sub-Exporter-pm-line.html#740">line 740</a>, avg 36µs/call</div></div>sub _collect_collections {</td></tr>
<tr><td class="h"><a name="550"></a>550</td><td class="c1">11</td><td class="c3"><span title="Avg 1µs">14µs</span></td><td></td><td></td><td class="s"> my ($config, $import_args, $class, $into) = @_;</td></tr>
<tr><td class="h"><a name="551"></a>551</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="552"></a>552</td><td></td><td></td><td></td><td></td><td class="s"> my @collections</td></tr>
<tr><td class="h"><a name="553"></a>553</td><td></td><td></td><td></td><td></td><td class="s"> = map { splice @$import_args, $_, 1 }</td></tr>
<tr><td class="h"><a name="554"></a>554</td><td class="c1">11</td><td class="c0"><span title="Avg 5µs">56µs</span></td><td></td><td></td><td class="s"> grep { exists $config->{collectors}{ $import_args->[$_][0] } }</td></tr>
<tr><td class="h"><a name="555"></a>555</td><td></td><td></td><td></td><td></td><td class="s"> reverse 0 .. $#$import_args;</td></tr>
<tr><td class="h"><a name="556"></a>556</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="557"></a>557</td><td class="c1">11</td><td class="c3"><span title="Avg 873ns">10µs</span></td><td></td><td></td><td class="s"> unshift @collections, [ INIT => {} ] if $config->{collectors}{INIT};</td></tr>
<tr><td class="h"><a name="558"></a>558</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="559"></a>559</td><td class="c1">11</td><td class="c3"><span title="Avg 518ns">6µs</span></td><td></td><td></td><td class="s"> my $col = {};</td></tr>
<tr><td class="h"><a name="560"></a>560</td><td class="c1">11</td><td class="c1"><span title="Avg 2µs">27µs</span></td><td class="c1">11</td><td class="c3">123µs</td><td class="s"> my $builder = _mk_collection_builder($col, \@_);<div class="calls"><div class="calls_out"> # spent 123µs making 11 calls to <a href="Sub-Exporter-pm-line.html#514">Sub::Exporter::_mk_collection_builder</a>, avg 11µs/call</div></div></td></tr>
<tr><td class="h"><a name="561"></a>561</td><td class="c1">11</td><td class="c3"><span title="Avg 936ns">10µs</span></td><td></td><td></td><td class="s"> for my $collection (@collections) {</td></tr>
<tr><td class="h"><a name="562"></a>562</td><td class="c3">1</td><td class="c3"><span title="Avg 2µs">2µs</span></td><td class="c3">1</td><td class="c3">31µs</td><td class="s"> $builder->($collection)<div class="calls"><div class="calls_out"> # spent 31µs making 1 call to <a href="Sub-Exporter-pm-line.html#519">Sub::Exporter::__ANON__[Sub/Exporter.pm:544]</a></div></div></td></tr>
<tr><td class="h"><a name="563"></a>563</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="564"></a>564</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="565"></a>565</td><td class="c1">11</td><td class="c0"><span title="Avg 10µs">108µs</span></td><td></td><td></td><td class="s"> return $col;</td></tr>
<tr><td class="h"><a name="566"></a>566</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="567"></a>567</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="568"></a>568</td><td></td><td></td><td></td><td></td><td class="s">=head1 SUBROUTINES</td></tr>
<tr><td class="h"><a name="569"></a>569</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="570"></a>570</td><td></td><td></td><td></td><td></td><td class="s">=head2 setup_exporter</td></tr>
<tr><td class="h"><a name="571"></a>571</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="572"></a>572</td><td></td><td></td><td></td><td></td><td class="s">This routine builds and installs an C<import> routine. It is called with one</td></tr>
<tr><td class="h"><a name="573"></a>573</td><td></td><td></td><td></td><td></td><td class="s">argument, a hashref containing the exporter configuration. Using this, it</td></tr>
<tr><td class="h"><a name="574"></a>574</td><td></td><td></td><td></td><td></td><td class="s">builds an exporter and installs it into the calling package with the name</td></tr>
<tr><td class="h"><a name="575"></a>575</td><td></td><td></td><td></td><td></td><td class="s">"import." In addition to the normal exporter configuration, a few named</td></tr>
<tr><td class="h"><a name="576"></a>576</td><td></td><td></td><td></td><td></td><td class="s">arguments may be passed in the hashref:</td></tr>
<tr><td class="h"><a name="577"></a>577</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="578"></a>578</td><td></td><td></td><td></td><td></td><td class="s"> into - into what package should the exporter be installed</td></tr>
<tr><td class="h"><a name="579"></a>579</td><td></td><td></td><td></td><td></td><td class="s"> into_level - into what level up the stack should the exporter be installed</td></tr>
<tr><td class="h"><a name="580"></a>580</td><td></td><td></td><td></td><td></td><td class="s"> as - what name should the installed exporter be given</td></tr>
<tr><td class="h"><a name="581"></a>581</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="582"></a>582</td><td></td><td></td><td></td><td></td><td class="s">By default the exporter is installed with the name C<import> into the immediate</td></tr>
<tr><td class="h"><a name="583"></a>583</td><td></td><td></td><td></td><td></td><td class="s">caller of C<setup_exporter>. In other words, if your package calls</td></tr>
<tr><td class="h"><a name="584"></a>584</td><td></td><td></td><td></td><td></td><td class="s">C<setup_exporter> without providing any of the three above arguments, it will</td></tr>
<tr><td class="h"><a name="585"></a>585</td><td></td><td></td><td></td><td></td><td class="s">have an C<import> routine installed.</td></tr>
<tr><td class="h"><a name="586"></a>586</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="587"></a>587</td><td></td><td></td><td></td><td></td><td class="s">Providing both C<into> and C<into_level> will cause an exception to be thrown.</td></tr>
<tr><td class="h"><a name="588"></a>588</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="589"></a>589</td><td></td><td></td><td></td><td></td><td class="s">The exporter is built by C<L</build_exporter>>.</td></tr>
<tr><td class="h"><a name="590"></a>590</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="591"></a>591</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="592"></a>592</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="593"></a>593</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 688µs (31+657) within Sub::Exporter::setup_exporter which was called 2 times, avg 344µs/call:
# once (17µs+400µs) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#938">line 938</a>
# once (13µs+257µs) by Moose::Meta::Attribute::BEGIN@17 at <a href="Moose-Util-pm-line.html#31">line 31 of Moose/Util.pm</a></div></div>sub setup_exporter {</td></tr>
<tr><td class="h"><a name="594"></a>594</td><td class="c3">2</td><td class="c3"><span title="Avg 1µs">2µs</span></td><td></td><td></td><td class="s"> my ($config) = @_;</td></tr>
<tr><td class="h"><a name="595"></a>595</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="596"></a>596</td><td class="c3">2</td><td class="c3"><span title="Avg 1µs">2µs</span></td><td></td><td></td><td class="s"> Carp::croak 'into and into_level may not both be supplied to exporter'</td></tr>
<tr><td class="h"><a name="597"></a>597</td><td></td><td></td><td></td><td></td><td class="s"> if exists $config->{into} and exists $config->{into_level};</td></tr>
<tr><td class="h"><a name="598"></a>598</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="599"></a>599</td><td class="c3">2</td><td class="c3"><span title="Avg 1µs">2µs</span></td><td></td><td></td><td class="s"> my $as = delete $config->{as} || 'import';</td></tr>
<tr><td class="h"><a name="600"></a>600</td><td class="c3">2</td><td class="c3"><span title="Avg 2µs">3µs</span></td><td></td><td></td><td class="s"> my $into</td></tr>
<tr><td class="h"><a name="601"></a>601</td><td></td><td></td><td></td><td></td><td class="s"> = exists $config->{into} ? delete $config->{into}</td></tr>
<tr><td class="h"><a name="602"></a>602</td><td></td><td></td><td></td><td></td><td class="s"> : exists $config->{into_level} ? caller(delete $config->{into_level})</td></tr>
<tr><td class="h"><a name="603"></a>603</td><td></td><td></td><td></td><td></td><td class="s"> : caller(0);</td></tr>
<tr><td class="h"><a name="604"></a>604</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="605"></a>605</td><td class="c3">2</td><td class="c3"><span title="Avg 2µs">3µs</span></td><td class="c3">2</td><td class="c0">519µs</td><td class="s"> my $import = build_exporter($config);<div class="calls"><div class="calls_out"> # spent 519µs making 2 calls to <a href="Sub-Exporter-pm-line.html#706">Sub::Exporter::build_exporter</a>, avg 260µs/call</div></div></td></tr>
<tr><td class="h"><a name="606"></a>606</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="607"></a>607</td><td class="c3">2</td><td class="c3"><span title="Avg 7µs">14µs</span></td><td class="c3">2</td><td class="c3">138µs</td><td class="s"> Sub::Install::reinstall_sub({<div class="calls"><div class="calls_out"> # spent 138µs making 2 calls to <a href="Sub-Install-pm-line.html#107">Sub::Install::__ANON__[Sub/Install.pm:132]</a>, avg 69µs/call</div></div></td></tr>
<tr><td class="h"><a name="608"></a>608</td><td></td><td></td><td></td><td></td><td class="s"> code => $import,</td></tr>
<tr><td class="h"><a name="609"></a>609</td><td></td><td></td><td></td><td></td><td class="s"> into => $into,</td></tr>
<tr><td class="h"><a name="610"></a>610</td><td></td><td></td><td></td><td></td><td class="s"> as => $as,</td></tr>
<tr><td class="h"><a name="611"></a>611</td><td></td><td></td><td></td><td></td><td class="s"> });</td></tr>
<tr><td class="h"><a name="612"></a>612</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="613"></a>613</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="614"></a>614</td><td></td><td></td><td></td><td></td><td class="s">=head2 build_exporter</td></tr>
<tr><td class="h"><a name="615"></a>615</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="616"></a>616</td><td></td><td></td><td></td><td></td><td class="s">Given a standard exporter configuration, this routine builds and returns an</td></tr>
<tr><td class="h"><a name="617"></a>617</td><td></td><td></td><td></td><td></td><td class="s">exporter -- that is, a subroutine that can be installed as a class method to</td></tr>
<tr><td class="h"><a name="618"></a>618</td><td></td><td></td><td></td><td></td><td class="s">perform exporting on request.</td></tr>
<tr><td class="h"><a name="619"></a>619</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="620"></a>620</td><td></td><td></td><td></td><td></td><td class="s">Usually, this method is called by C<L</setup_exporter>>, which then installs</td></tr>
<tr><td class="h"><a name="621"></a>621</td><td></td><td></td><td></td><td></td><td class="s">the exporter as a package's import routine.</td></tr>
<tr><td class="h"><a name="622"></a>622</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="623"></a>623</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="624"></a>624</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="625"></a>625</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 54µs within Sub::Exporter::_key_intersection which was called 5 times, avg 11µs/call:
# 5 times (54µs+0s) by Sub::Exporter::_rewrite_build_config at <a href="Sub-Exporter-pm-line.html#681">line 681</a>, avg 11µs/call</div></div>sub _key_intersection {</td></tr>
<tr><td class="h"><a name="626"></a>626</td><td class="c3">5</td><td class="c3"><span title="Avg 680ns">3µs</span></td><td></td><td></td><td class="s"> my ($x, $y) = @_;</td></tr>
<tr><td class="h"><a name="627"></a>627</td><td class="c3">5</td><td class="c0"><span title="Avg 7µs">34µs</span></td><td></td><td></td><td class="s"> my %seen = map { $_ => 1 } keys %$x;</td></tr>
<tr><td class="h"><a name="628"></a>628</td><td class="c3">5</td><td class="c2"><span title="Avg 4µs">20µs</span></td><td></td><td></td><td class="s"> my @names = grep { $seen{$_} } keys %$y;</td></tr>
<tr><td class="h"><a name="629"></a>629</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="630"></a>630</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="631"></a>631</td><td></td><td></td><td></td><td></td><td class="s"># Given the config passed to setup_exporter, which contains sugary opt list</td></tr>
<tr><td class="h"><a name="632"></a>632</td><td></td><td></td><td></td><td></td><td class="s"># data, rewrite the opt lists into hashes, catch a few kinds of invalid</td></tr>
<tr><td class="h"><a name="633"></a>633</td><td></td><td></td><td></td><td></td><td class="s"># configurations, and set up defaults. Since the config is a reference, it's</td></tr>
<tr><td class="h"><a name="634"></a>634</td><td></td><td></td><td></td><td></td><td class="s"># rewritten in place.</td></tr>
<tr><td class="h"><a name="635"></a>635</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s">my %valid_config_key;</td></tr>
<tr><td class="h"><a name="636"></a>636</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 26µs within Sub::Exporter::BEGIN@636 which was called
# once (26µs+0s) by Devel::GlobalDestruction::BEGIN@26 at <a href="Sub-Exporter-pm-line.html#641">line 641</a></div></div>BEGIN {</td></tr>
<tr><td class="h"><a name="637"></a>637</td><td></td><td></td><td></td><td></td><td class="s"> %valid_config_key =</td></tr>
<tr><td class="h"><a name="638"></a>638</td><td class="c3">1</td><td class="c1"><span title="Avg 29µs">29µs</span></td><td></td><td></td><td class="s"> map { $_ => 1 }</td></tr>
<tr><td class="h"><a name="639"></a>639</td><td></td><td></td><td></td><td></td><td class="s"> qw(as collectors installer generator exports groups into into_level),</td></tr>
<tr><td class="h"><a name="640"></a>640</td><td></td><td></td><td></td><td></td><td class="s"> qw(exporter), # deprecated</td></tr>
<tr><td class="h"><a name="641"></a>641</td><td class="c3">1</td><td class="c0"><span title="Avg 1.51ms">1.51ms</span></td><td class="c3">1</td><td class="c3">26µs</td><td class="s">}<div class="calls"><div class="calls_out"># spent 26µs making 1 call to <a href="Sub-Exporter-pm-line.html#636">Sub::Exporter::BEGIN@636</a></div></div></td></tr>
<tr><td class="h"><a name="642"></a>642</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="643"></a>643</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 30µs (26+4) within Sub::Exporter::_assert_collector_names_ok which was called 5 times, avg 6µs/call:
# 5 times (26µs+4µs) by Sub::Exporter::_rewrite_build_config at <a href="Sub-Exporter-pm-line.html#679">line 679</a>, avg 6µs/call</div></div>sub _assert_collector_names_ok {</td></tr>
<tr><td class="h"><a name="644"></a>644</td><td class="c3">5</td><td class="c3"><span title="Avg 560ns">3µs</span></td><td></td><td></td><td class="s"> my ($collectors) = @_;</td></tr>
<tr><td class="h"><a name="645"></a>645</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="646"></a>646</td><td class="c3">6</td><td class="c0"><span title="Avg 5µs">32µs</span></td><td class="c3">1</td><td class="c3">4µs</td><td class="s"> for my $reserved_name (grep { /\A[_A-Z]+\z/ } keys %$collectors) {<div class="calls"><div class="calls_out"> # spent 4µs making 1 call to <a href="Sub-Exporter-pm-line.html#Sub__Exporter__CORE_match">Sub::Exporter::CORE:match</a></div></div></td></tr>
<tr><td class="h"><a name="647"></a>647</td><td></td><td></td><td></td><td></td><td class="s"> Carp::croak "unknown reserved collector name: $reserved_name"</td></tr>
<tr><td class="h"><a name="648"></a>648</td><td></td><td></td><td></td><td></td><td class="s"> if $reserved_name ne 'INIT';</td></tr>
<tr><td class="h"><a name="649"></a>649</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="650"></a>650</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="651"></a>651</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="652"></a>652</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 1.39ms (200µs+1.19) within Sub::Exporter::_rewrite_build_config which was called 5 times, avg 277µs/call:
# 5 times (200µs+1.19ms) by Sub::Exporter::build_exporter at <a href="Sub-Exporter-pm-line.html#709">line 709</a>, avg 277µs/call</div></div>sub _rewrite_build_config {</td></tr>
<tr><td class="h"><a name="653"></a>653</td><td class="c3">5</td><td class="c3"><span title="Avg 500ns">2µs</span></td><td></td><td></td><td class="s"> my ($config) = @_;</td></tr>
<tr><td class="h"><a name="654"></a>654</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="655"></a>655</td><td class="c3">5</td><td class="c1"><span title="Avg 4µs">21µs</span></td><td></td><td></td><td class="s"> if (my @keys = grep { not exists $valid_config_key{$_} } keys %$config) {</td></tr>
<tr><td class="h"><a name="656"></a>656</td><td></td><td></td><td></td><td></td><td class="s"> Carp::croak "unknown options (@keys) passed to Sub::Exporter";</td></tr>
<tr><td class="h"><a name="657"></a>657</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="658"></a>658</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="659"></a>659</td><td class="c3">5</td><td class="c3"><span title="Avg 560ns">3µs</span></td><td></td><td></td><td class="s"> Carp::croak q(into and into_level may not both be supplied to exporter)</td></tr>
<tr><td class="h"><a name="660"></a>660</td><td></td><td></td><td></td><td></td><td class="s"> if exists $config->{into} and exists $config->{into_level};</td></tr>
<tr><td class="h"><a name="661"></a>661</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="662"></a>662</td><td></td><td></td><td></td><td></td><td class="s"> # XXX: Remove after deprecation period.</td></tr>
<tr><td class="h"><a name="663"></a>663</td><td class="c3">5</td><td class="c3"><span title="Avg 520ns">3µs</span></td><td></td><td></td><td class="s"> if ($config->{exporter}) {</td></tr>
<tr><td class="h"><a name="664"></a>664</td><td></td><td></td><td></td><td></td><td class="s"> Carp::cluck "'exporter' argument to build_exporter is deprecated. Use 'installer' instead; the semantics are identical.";</td></tr>
<tr><td class="h"><a name="665"></a>665</td><td></td><td></td><td></td><td></td><td class="s"> $config->{installer} = delete $config->{exporter};</td></tr>
<tr><td class="h"><a name="666"></a>666</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="667"></a>667</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="668"></a>668</td><td class="c3">5</td><td class="c3"><span title="Avg 560ns">3µs</span></td><td></td><td></td><td class="s"> Carp::croak q(into and into_level may not both be supplied to exporter)</td></tr>
<tr><td class="h"><a name="669"></a>669</td><td></td><td></td><td></td><td></td><td class="s"> if exists $config->{into} and exists $config->{into_level};</td></tr>
<tr><td class="h"><a name="670"></a>670</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="671"></a>671</td><td class="c3">5</td><td class="c3"><span title="Avg 1µs">6µs</span></td><td></td><td></td><td class="s"> for (qw(exports collectors)) {</td></tr>
<tr><td class="h"><a name="672"></a>672</td><td class="c2">10</td><td class="c0"><span title="Avg 4µs">44µs</span></td><td class="c1">10</td><td class="c0">860µs</td><td class="s"> $config->{$_} = Data::OptList::mkopt_hash(<div class="calls"><div class="calls_out"> # spent 860µs making 10 calls to <a href="Data-OptList-pm-line.html#199">Data::OptList::mkopt_hash</a>, avg 86µs/call</div></div></td></tr>
<tr><td class="h"><a name="673"></a>673</td><td></td><td></td><td></td><td></td><td class="s"> $config->{$_},</td></tr>
<tr><td class="h"><a name="674"></a>674</td><td></td><td></td><td></td><td></td><td class="s"> $_,</td></tr>
<tr><td class="h"><a name="675"></a>675</td><td></td><td></td><td></td><td></td><td class="s"> [ 'CODE', 'SCALAR' ],</td></tr>
<tr><td class="h"><a name="676"></a>676</td><td></td><td></td><td></td><td></td><td class="s"> );</td></tr>
<tr><td class="h"><a name="677"></a>677</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="678"></a>678</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="679"></a>679</td><td class="c3">5</td><td class="c3"><span title="Avg 2µs">11µs</span></td><td class="c3">5</td><td class="c3">30µs</td><td class="s"> _assert_collector_names_ok($config->{collectors});<div class="calls"><div class="calls_out"> # spent 30µs making 5 calls to <a href="Sub-Exporter-pm-line.html#643">Sub::Exporter::_assert_collector_names_ok</a>, avg 6µs/call</div></div></td></tr>
<tr><td class="h"><a name="680"></a>680</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="681"></a>681</td><td class="c3">5</td><td class="c3"><span title="Avg 3µs">16µs</span></td><td class="c3">5</td><td class="c3">54µs</td><td class="s"> if (my @names = _key_intersection(@$config{qw(exports collectors)})) {<div class="calls"><div class="calls_out"> # spent 54µs making 5 calls to <a href="Sub-Exporter-pm-line.html#625">Sub::Exporter::_key_intersection</a>, avg 11µs/call</div></div></td></tr>
<tr><td class="h"><a name="682"></a>682</td><td></td><td></td><td></td><td></td><td class="s"> Carp::croak "names (@names) used in both collections and exports";</td></tr>
<tr><td class="h"><a name="683"></a>683</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="684"></a>684</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="685"></a>685</td><td class="c3">5</td><td class="c1"><span title="Avg 5µs">24µs</span></td><td class="c3">5</td><td class="c1">242µs</td><td class="s"> $config->{groups} = Data::OptList::mkopt_hash(<div class="calls"><div class="calls_out"> # spent 242µs making 5 calls to <a href="Data-OptList-pm-line.html#199">Data::OptList::mkopt_hash</a>, avg 48µs/call</div></div></td></tr>
<tr><td class="h"><a name="686"></a>686</td><td></td><td></td><td></td><td></td><td class="s"> $config->{groups},</td></tr>
<tr><td class="h"><a name="687"></a>687</td><td></td><td></td><td></td><td></td><td class="s"> 'groups',</td></tr>
<tr><td class="h"><a name="688"></a>688</td><td></td><td></td><td></td><td></td><td class="s"> [</td></tr>
<tr><td class="h"><a name="689"></a>689</td><td></td><td></td><td></td><td></td><td class="s"> 'HASH', # standard opt list</td></tr>
<tr><td class="h"><a name="690"></a>690</td><td></td><td></td><td></td><td></td><td class="s"> 'ARRAY', # standard opt list</td></tr>
<tr><td class="h"><a name="691"></a>691</td><td></td><td></td><td></td><td></td><td class="s"> 'CODE', # group generator</td></tr>
<tr><td class="h"><a name="692"></a>692</td><td></td><td></td><td></td><td></td><td class="s"> 'SCALAR', # name of group generation method</td></tr>
<tr><td class="h"><a name="693"></a>693</td><td></td><td></td><td></td><td></td><td class="s"> ]</td></tr>
<tr><td class="h"><a name="694"></a>694</td><td></td><td></td><td></td><td></td><td class="s"> );</td></tr>
<tr><td class="h"><a name="695"></a>695</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="696"></a>696</td><td></td><td></td><td></td><td></td><td class="s"> # by default, export nothing</td></tr>
<tr><td class="h"><a name="697"></a>697</td><td class="c3">5</td><td class="c3"><span title="Avg 700ns">3µs</span></td><td></td><td></td><td class="s"> $config->{groups}{default} ||= [];</td></tr>
<tr><td class="h"><a name="698"></a>698</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="699"></a>699</td><td></td><td></td><td></td><td></td><td class="s"> # by default, build an all-inclusive 'all' group</td></tr>
<tr><td class="h"><a name="700"></a>700</td><td class="c3">5</td><td class="c3"><span title="Avg 2µs">9µs</span></td><td></td><td></td><td class="s"> $config->{groups}{all} ||= [ keys %{ $config->{exports} } ];</td></tr>
<tr><td class="h"><a name="701"></a>701</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="702"></a>702</td><td class="c3">5</td><td class="c3"><span title="Avg 940ns">5µs</span></td><td></td><td></td><td class="s"> $config->{generator} ||= \&default_generator;</td></tr>
<tr><td class="h"><a name="703"></a>703</td><td class="c3">5</td><td class="c3"><span title="Avg 3µs">16µs</span></td><td></td><td></td><td class="s"> $config->{installer} ||= \&default_installer;</td></tr>
<tr><td class="h"><a name="704"></a>704</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="705"></a>705</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="706"></a>706</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 1.44ms (57µs+1.38) within Sub::Exporter::build_exporter which was called 5 times, avg 288µs/call:
# 2 times (24µs+770µs) by Moose::Exporter::build_import_methods at <a href="Moose-Exporter-pm-line.html#52">line 52 of Moose/Exporter.pm</a>, avg 397µs/call
# 2 times (25µs+494µs) by Sub::Exporter::setup_exporter at <a href="Sub-Exporter-pm-line.html#605">line 605</a>, avg 260µs/call
# once (8µs+121µs) by Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:937] at <a href="Sub-Exporter-pm-line.html#937">line 937</a></div></div>sub build_exporter {</td></tr>
<tr><td class="h"><a name="707"></a>707</td><td class="c3">5</td><td class="c3"><span title="Avg 660ns">3µs</span></td><td></td><td></td><td class="s"> my ($config) = @_;</td></tr>
<tr><td class="h"><a name="708"></a>708</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="709"></a>709</td><td class="c3">5</td><td class="c3"><span title="Avg 2µs">8µs</span></td><td class="c3">5</td><td class="c0">1.39ms</td><td class="s"> _rewrite_build_config($config);<div class="calls"><div class="calls_out"> # spent 1.39ms making 5 calls to <a href="Sub-Exporter-pm-line.html#652">Sub::Exporter::_rewrite_build_config</a>, avg 277µs/call</div></div></td></tr>
<tr><td class="h"><a name="710"></a>710</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="711"></a>711</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 4.24ms (363µs+3.88) within Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:756] which was called 11 times, avg 386µs/call:
# 2 times (65µs+2.30ms) by Moose::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/darwin-2level/Moose/Exporter.pm:389] at <a href="Moose-Exporter-pm-line.html#382">line 382 of Moose/Exporter.pm</a>, avg 1.18ms/call
# once (33µs+353µs) by Devel::GlobalDestruction::BEGIN@26 at <a href="Devel-GlobalDestruction-pm-line.html#26">line 26 of Devel/GlobalDestruction.pm</a>
# once (51µs+217µs) by Class::MOP::Class::BEGIN@15 at <a href="Class-MOP-Class-pm-line.html#15">line 15 of Class/MOP/Class.pm</a>
# once (38µs+204µs) by Moose::Meta::Role::BEGIN@10 at <a href="Moose-Meta-Role-pm-line.html#10">line 10 of Moose/Meta/Role.pm</a>
# once (37µs+201µs) by Moose::Meta::Role::Application::ToClass::BEGIN@7 at <a href="Moose-Meta-Role-Application-ToClass-pm-line.html#7">line 7 of Moose/Meta/Role/Application/ToClass.pm</a>
# once (23µs+155µs) by Moose::Meta::TypeConstraint::DuckType::BEGIN@9 at <a href="Moose-Meta-TypeConstraint-DuckType-pm-line.html#9">line 9 of Moose/Meta/TypeConstraint/DuckType.pm</a>
# once (37µs+136µs) by Moose::Exporter::BEGIN@14 at <a href="Moose-Exporter-pm-line.html#14">line 14 of Moose/Exporter.pm</a>
# once (34µs+121µs) by Moose::Util::BEGIN@7 at <a href="Moose-Util-pm-line.html#7">line 7 of Moose/Util.pm</a>
# once (20µs+109µs) by Moose::Meta::Role::BEGIN@21 at <a href="Moose-Meta-Role-pm-line.html#21">line 21 of Moose/Meta/Role.pm</a>
# once (24µs+86µs) by Moose::Meta::Role::Method::Conflicting::BEGIN@7 at <a href="Moose-Meta-Role-Method-Conflicting-pm-line.html#7">line 7 of Moose/Meta/Role/Method/Conflicting.pm</a></div></div> my $import = sub {</td></tr>
<tr><td class="h"><a name="712"></a>712</td><td class="c1">11</td><td class="c3"><span title="Avg 1µs">12µs</span></td><td></td><td></td><td class="s"> my ($class) = shift;</td></tr>
<tr><td class="h"><a name="713"></a>713</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="714"></a>714</td><td></td><td></td><td></td><td></td><td class="s"> # XXX: clean this up -- rjbs, 2006-03-16</td></tr>
<tr><td class="h"><a name="715"></a>715</td><td class="c1">11</td><td class="c3"><span title="Avg 1µs">13µs</span></td><td></td><td></td><td class="s"> my $special = (ref $_[0]) ? shift(@_) : {};</td></tr>
<tr><td class="h"><a name="716"></a>716</td><td class="c1">11</td><td class="c3"><span title="Avg 955ns">10µs</span></td><td></td><td></td><td class="s"> Carp::croak q(into and into_level may not both be supplied to exporter)</td></tr>
<tr><td class="h"><a name="717"></a>717</td><td></td><td></td><td></td><td></td><td class="s"> if exists $special->{into} and exists $special->{into_level};</td></tr>
<tr><td class="h"><a name="718"></a>718</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="719"></a>719</td><td class="c1">11</td><td class="c3"><span title="Avg 627ns">7µs</span></td><td></td><td></td><td class="s"> if ($special->{exporter}) {</td></tr>
<tr><td class="h"><a name="720"></a>720</td><td></td><td></td><td></td><td></td><td class="s"> Carp::cluck "'exporter' special import argument is deprecated. Use 'installer' instead; the semantics are identical.";</td></tr>
<tr><td class="h"><a name="721"></a>721</td><td></td><td></td><td></td><td></td><td class="s"> $special->{installer} = delete $special->{exporter};</td></tr>
<tr><td class="h"><a name="722"></a>722</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="723"></a>723</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="724"></a>724</td><td class="c1">11</td><td class="c0"><span title="Avg 3µs">31µs</span></td><td></td><td></td><td class="s"> my $into</td></tr>
<tr><td class="h"><a name="725"></a>725</td><td></td><td></td><td></td><td></td><td class="s"> = defined $special->{into} ? delete $special->{into}</td></tr>
<tr><td class="h"><a name="726"></a>726</td><td></td><td></td><td></td><td></td><td class="s"> : defined $special->{into_level} ? caller(delete $special->{into_level})</td></tr>
<tr><td class="h"><a name="727"></a>727</td><td></td><td></td><td></td><td></td><td class="s"> : defined $config->{into} ? $config->{into}</td></tr>
<tr><td class="h"><a name="728"></a>728</td><td></td><td></td><td></td><td></td><td class="s"> : defined $config->{into_level} ? caller($config->{into_level})</td></tr>
<tr><td class="h"><a name="729"></a>729</td><td></td><td></td><td></td><td></td><td class="s"> : caller(0);</td></tr>
<tr><td class="h"><a name="730"></a>730</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="731"></a>731</td><td class="c1">11</td><td class="c3"><span title="Avg 827ns">9µs</span></td><td></td><td></td><td class="s"> my $generator = delete $special->{generator} || $config->{generator};</td></tr>
<tr><td class="h"><a name="732"></a>732</td><td class="c1">11</td><td class="c3"><span title="Avg 764ns">8µs</span></td><td></td><td></td><td class="s"> my $installer = delete $special->{installer} || $config->{installer};</td></tr>
<tr><td class="h"><a name="733"></a>733</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="734"></a>734</td><td></td><td></td><td></td><td></td><td class="s"> # this builds a AOA, where the inner arrays are [ name => value_ref ]</td></tr>
<tr><td class="h"><a name="735"></a>735</td><td class="c1">11</td><td class="c0"><span title="Avg 3µs">36µs</span></td><td class="c1">11</td><td class="c3">126µs</td><td class="s"> my $import_args = Data::OptList::mkopt([ @_ ]);<div class="calls"><div class="calls_out"> # spent 126µs making 11 calls to <a href="Data-OptList-pm-line.html#152">Data::OptList::mkopt</a>, avg 11µs/call</div></div></td></tr>
<tr><td class="h"><a name="736"></a>736</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="737"></a>737</td><td></td><td></td><td></td><td></td><td class="s"> # is this right? defaults first or collectors first? -- rjbs, 2006-06-24</td></tr>
<tr><td class="h"><a name="738"></a>738</td><td class="c1">11</td><td class="c3"><span title="Avg 1µs">14µs</span></td><td></td><td></td><td class="s"> $import_args = [ [ -default => undef ] ] unless @$import_args;</td></tr>
<tr><td class="h"><a name="739"></a>739</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="740"></a>740</td><td class="c1">11</td><td class="c1"><span title="Avg 2µs">25µs</span></td><td class="c1">11</td><td class="c0">397µs</td><td class="s"> my $collection = _collect_collections($config, $import_args, $class, $into);<div class="calls"><div class="calls_out"> # spent 397µs making 11 calls to <a href="Sub-Exporter-pm-line.html#549">Sub::Exporter::_collect_collections</a>, avg 36µs/call</div></div></td></tr>
<tr><td class="h"><a name="741"></a>741</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="742"></a>742</td><td class="c1">11</td><td class="c1"><span title="Avg 2µs">22µs</span></td><td class="c1">11</td><td class="c0">759µs</td><td class="s"> my $to_import = _expand_groups($class, $config, $import_args, $collection);<div class="calls"><div class="calls_out"> # spent 759µs making 11 calls to <a href="Sub-Exporter-pm-line.html#414">Sub::Exporter::_expand_groups</a>, avg 69µs/call</div></div></td></tr>
<tr><td class="h"><a name="743"></a>743</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="744"></a>744</td><td></td><td></td><td></td><td></td><td class="s"> # now, finally $import_arg is really the "to do" list</td></tr>
<tr><td class="h"><a name="745"></a>745</td><td class="c1">11</td><td class="c0"><span title="Avg 10µs">108µs</span></td><td class="c1">11</td><td class="c0">2.60ms</td><td class="s"> _do_import(<div class="calls"><div class="calls_out"> # spent 2.60ms making 11 calls to <a href="Sub-Exporter-pm-line.html#761">Sub::Exporter::_do_import</a>, avg 236µs/call</div></div></td></tr>
<tr><td class="h"><a name="746"></a>746</td><td></td><td></td><td></td><td></td><td class="s"> {</td></tr>
<tr><td class="h"><a name="747"></a>747</td><td></td><td></td><td></td><td></td><td class="s"> class => $class,</td></tr>
<tr><td class="h"><a name="748"></a>748</td><td></td><td></td><td></td><td></td><td class="s"> col => $collection,</td></tr>
<tr><td class="h"><a name="749"></a>749</td><td></td><td></td><td></td><td></td><td class="s"> config => $config,</td></tr>
<tr><td class="h"><a name="750"></a>750</td><td></td><td></td><td></td><td></td><td class="s"> into => $into,</td></tr>
<tr><td class="h"><a name="751"></a>751</td><td></td><td></td><td></td><td></td><td class="s"> generator => $generator,</td></tr>
<tr><td class="h"><a name="752"></a>752</td><td></td><td></td><td></td><td></td><td class="s"> installer => $installer,</td></tr>
<tr><td class="h"><a name="753"></a>753</td><td></td><td></td><td></td><td></td><td class="s"> },</td></tr>
<tr><td class="h"><a name="754"></a>754</td><td></td><td></td><td></td><td></td><td class="s"> $to_import,</td></tr>
<tr><td class="h"><a name="755"></a>755</td><td></td><td></td><td></td><td></td><td class="s"> );</td></tr>
<tr><td class="h"><a name="756"></a>756</td><td class="c3">5</td><td class="c1"><span title="Avg 6µs">29µs</span></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="757"></a>757</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="758"></a>758</td><td class="c3">5</td><td class="c2"><span title="Avg 3µs">17µs</span></td><td></td><td></td><td class="s"> return $import;</td></tr>
<tr><td class="h"><a name="759"></a>759</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="760"></a>760</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="761"></a>761</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 2.60ms (410µs+2.19) within Sub::Exporter::_do_import which was called 11 times, avg 236µs/call:
# 11 times (410µs+2.19ms) by Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:756] at <a href="Sub-Exporter-pm-line.html#745">line 745</a>, avg 236µs/call</div></div>sub _do_import {</td></tr>
<tr><td class="h"><a name="762"></a>762</td><td class="c1">11</td><td class="c3"><span title="Avg 764ns">8µs</span></td><td></td><td></td><td class="s"> my ($arg, $to_import) = @_;</td></tr>
<tr><td class="h"><a name="763"></a>763</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="764"></a>764</td><td class="c1">11</td><td class="c3"><span title="Avg 236ns">3µs</span></td><td></td><td></td><td class="s"> my @todo;</td></tr>
<tr><td class="h"><a name="765"></a>765</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="766"></a>766</td><td class="c1">11</td><td class="c3"><span title="Avg 927ns">10µs</span></td><td></td><td></td><td class="s"> for my $pair (@$to_import) {</td></tr>
<tr><td class="h"><a name="767"></a>767</td><td class="c0">35</td><td class="c3"><span title="Avg 400ns">14µs</span></td><td></td><td></td><td class="s"> my ($name, $import_arg) = @$pair;</td></tr>
<tr><td class="h"><a name="768"></a>768</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="769"></a>769</td><td class="c0">35</td><td class="c3"><span title="Avg 163ns">6µs</span></td><td></td><td></td><td class="s"> my ($generator, $as);</td></tr>
<tr><td class="h"><a name="770"></a>770</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="771"></a>771</td><td class="c0">35</td><td class="c3"><span title="Avg 337ns">12µs</span></td><td class="c3">1</td><td class="c3">900ns</td><td class="s"> if ($import_arg and Params::Util::_CODELIKE($import_arg)) { ## no critic<div class="calls"><div class="calls_out"> # spent 900ns making 1 call to <a href="Params-Util-pm-line.html#Params__Util___CODELIKE">Params::Util::_CODELIKE</a></div></div></td></tr>
<tr><td class="h"><a name="772"></a>772</td><td></td><td></td><td></td><td></td><td class="s"> # This is the case when a group generator has inserted name/code pairs.</td></tr>
<tr><td class="h"><a name="773"></a>773</td><td></td><td></td><td></td><td></td><td class="s"> $generator = sub { $import_arg };</td></tr>
<tr><td class="h"><a name="774"></a>774</td><td></td><td></td><td></td><td></td><td class="s"> $as = $name;</td></tr>
<tr><td class="h"><a name="775"></a>775</td><td></td><td></td><td></td><td></td><td class="s"> } else {</td></tr>
<tr><td class="h"><a name="776"></a>776</td><td class="c0">35</td><td class="c3"><span title="Avg 380ns">13µs</span></td><td></td><td></td><td class="s"> $import_arg = { $import_arg ? %$import_arg : () };</td></tr>
<tr><td class="h"><a name="777"></a>777</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="778"></a>778</td><td class="c0">35</td><td class="c1"><span title="Avg 654ns">23µs</span></td><td></td><td></td><td class="s"> Carp::croak qq("$name" is not exported by the $arg->{class} module)</td></tr>
<tr><td class="h"><a name="779"></a>779</td><td></td><td></td><td></td><td></td><td class="s"> unless exists $arg->{config}{exports}{$name};</td></tr>
<tr><td class="h"><a name="780"></a>780</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="781"></a>781</td><td class="c0">35</td><td class="c2"><span title="Avg 463ns">16µs</span></td><td></td><td></td><td class="s"> $generator = $arg->{config}{exports}{$name};</td></tr>
<tr><td class="h"><a name="782"></a>782</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="783"></a>783</td><td class="c0">35</td><td class="c1"><span title="Avg 749ns">26µs</span></td><td></td><td></td><td class="s"> $as = exists $import_arg->{-as} ? (delete $import_arg->{-as}) : $name;</td></tr>
<tr><td class="h"><a name="784"></a>784</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="785"></a>785</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="786"></a>786</td><td class="c0">35</td><td class="c0"><span title="Avg 3µs">106µs</span></td><td class="c0">35</td><td class="c0">582µs</td><td class="s"> my $code = $arg->{generator}->(<div class="calls"><div class="calls_out"> # spent 582µs making 35 calls to <a href="Sub-Exporter-pm-line.html#843">Sub::Exporter::default_generator</a>, avg 17µs/call</div></div></td></tr>
<tr><td class="h"><a name="787"></a>787</td><td></td><td></td><td></td><td></td><td class="s"> { </td></tr>
<tr><td class="h"><a name="788"></a>788</td><td></td><td></td><td></td><td></td><td class="s"> class => $arg->{class},</td></tr>
<tr><td class="h"><a name="789"></a>789</td><td></td><td></td><td></td><td></td><td class="s"> name => $name,</td></tr>
<tr><td class="h"><a name="790"></a>790</td><td></td><td></td><td></td><td></td><td class="s"> arg => $import_arg,</td></tr>
<tr><td class="h"><a name="791"></a>791</td><td></td><td></td><td></td><td></td><td class="s"> col => $arg->{col},</td></tr>
<tr><td class="h"><a name="792"></a>792</td><td></td><td></td><td></td><td></td><td class="s"> generator => $generator,</td></tr>
<tr><td class="h"><a name="793"></a>793</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="794"></a>794</td><td></td><td></td><td></td><td></td><td class="s"> );</td></tr>
<tr><td class="h"><a name="795"></a>795</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="796"></a>796</td><td class="c0">35</td><td class="c0"><span title="Avg 1µs">40µs</span></td><td></td><td></td><td class="s"> push @todo, $as, $code;</td></tr>
<tr><td class="h"><a name="797"></a>797</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="798"></a>798</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="799"></a>799</td><td class="c1">11</td><td class="c0"><span title="Avg 6µs">63µs</span></td><td class="c1">11</td><td class="c0">1.60ms</td><td class="s"> $arg->{installer}->(<div class="calls"><div class="calls_out"> # spent 1.60ms making 11 calls to <a href="Sub-Exporter-pm-line.html#882">Sub::Exporter::default_installer</a>, avg 146µs/call</div></div></td></tr>
<tr><td class="h"><a name="800"></a>800</td><td></td><td></td><td></td><td></td><td class="s"> {</td></tr>
<tr><td class="h"><a name="801"></a>801</td><td></td><td></td><td></td><td></td><td class="s"> class => $arg->{class},</td></tr>
<tr><td class="h"><a name="802"></a>802</td><td></td><td></td><td></td><td></td><td class="s"> into => $arg->{into},</td></tr>
<tr><td class="h"><a name="803"></a>803</td><td></td><td></td><td></td><td></td><td class="s"> col => $arg->{col},</td></tr>
<tr><td class="h"><a name="804"></a>804</td><td></td><td></td><td></td><td></td><td class="s"> },</td></tr>
<tr><td class="h"><a name="805"></a>805</td><td></td><td></td><td></td><td></td><td class="s"> \@todo,</td></tr>
<tr><td class="h"><a name="806"></a>806</td><td></td><td></td><td></td><td></td><td class="s"> );</td></tr>
<tr><td class="h"><a name="807"></a>807</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="808"></a>808</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="809"></a>809</td><td></td><td></td><td></td><td></td><td class="s">## Cute idea, possibly for future use: also supply an "unimport" for:</td></tr>
<tr><td class="h"><a name="810"></a>810</td><td></td><td></td><td></td><td></td><td class="s">## no Module::Whatever qw(arg arg arg);</td></tr>
<tr><td class="h"><a name="811"></a>811</td><td></td><td></td><td></td><td></td><td class="s"># sub _unexport {</td></tr>
<tr><td class="h"><a name="812"></a>812</td><td></td><td></td><td></td><td></td><td class="s"># my (undef, undef, undef, undef, undef, $as, $into) = @_;</td></tr>
<tr><td class="h"><a name="813"></a>813</td><td></td><td></td><td></td><td></td><td class="s"># </td></tr>
<tr><td class="h"><a name="814"></a>814</td><td></td><td></td><td></td><td></td><td class="s"># if (ref $as eq 'SCALAR') {</td></tr>
<tr><td class="h"><a name="815"></a>815</td><td></td><td></td><td></td><td></td><td class="s"># undef $$as;</td></tr>
<tr><td class="h"><a name="816"></a>816</td><td></td><td></td><td></td><td></td><td class="s"># } elsif (ref $as) {</td></tr>
<tr><td class="h"><a name="817"></a>817</td><td></td><td></td><td></td><td></td><td class="s"># Carp::croak "invalid reference type for $as: " . ref $as;</td></tr>
<tr><td class="h"><a name="818"></a>818</td><td></td><td></td><td></td><td></td><td class="s"># } else {</td></tr>
<tr><td class="h"><a name="819"></a>819</td><td></td><td></td><td></td><td></td><td class="s"># no strict 'refs';</td></tr>
<tr><td class="h"><a name="820"></a>820</td><td></td><td></td><td></td><td></td><td class="s"># delete &{$into . '::' . $as};</td></tr>
<tr><td class="h"><a name="821"></a>821</td><td></td><td></td><td></td><td></td><td class="s"># }</td></tr>
<tr><td class="h"><a name="822"></a>822</td><td></td><td></td><td></td><td></td><td class="s"># }</td></tr>
<tr><td class="h"><a name="823"></a>823</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="824"></a>824</td><td></td><td></td><td></td><td></td><td class="s">=head2 default_generator</td></tr>
<tr><td class="h"><a name="825"></a>825</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="826"></a>826</td><td></td><td></td><td></td><td></td><td class="s">This is Sub::Exporter's default generator. It takes bits of configuration that</td></tr>
<tr><td class="h"><a name="827"></a>827</td><td></td><td></td><td></td><td></td><td class="s">have been gathered during the import and turns them into a coderef that can be</td></tr>
<tr><td class="h"><a name="828"></a>828</td><td></td><td></td><td></td><td></td><td class="s">installed.</td></tr>
<tr><td class="h"><a name="829"></a>829</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="830"></a>830</td><td></td><td></td><td></td><td></td><td class="s"> my $code = default_generator(\%arg);</td></tr>
<tr><td class="h"><a name="831"></a>831</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="832"></a>832</td><td></td><td></td><td></td><td></td><td class="s">Passed arguments are:</td></tr>
<tr><td class="h"><a name="833"></a>833</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="834"></a>834</td><td></td><td></td><td></td><td></td><td class="s"> class - the class on which the import method was called</td></tr>
<tr><td class="h"><a name="835"></a>835</td><td></td><td></td><td></td><td></td><td class="s"> name - the name of the export being generated</td></tr>
<tr><td class="h"><a name="836"></a>836</td><td></td><td></td><td></td><td></td><td class="s"> arg - the arguments to the generator</td></tr>
<tr><td class="h"><a name="837"></a>837</td><td></td><td></td><td></td><td></td><td class="s"> col - the collections</td></tr>
<tr><td class="h"><a name="838"></a>838</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="839"></a>839</td><td></td><td></td><td></td><td></td><td class="s"> generator - the generator to be used to build the export (code or scalar ref)</td></tr>
<tr><td class="h"><a name="840"></a>840</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="841"></a>841</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="842"></a>842</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="843"></a>843</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 582µs (239+343) within Sub::Exporter::default_generator which was called 35 times, avg 17µs/call:
# 35 times (239µs+343µs) by Sub::Exporter::_do_import at <a href="Sub-Exporter-pm-line.html#786">line 786</a>, avg 17µs/call</div></div>sub default_generator {</td></tr>
<tr><td class="h"><a name="844"></a>844</td><td class="c0">35</td><td class="c3"><span title="Avg 289ns">10µs</span></td><td></td><td></td><td class="s"> my ($arg) = @_;</td></tr>
<tr><td class="h"><a name="845"></a>845</td><td class="c0">35</td><td class="c1"><span title="Avg 809ns">28µs</span></td><td></td><td></td><td class="s"> my ($class, $name, $generator) = @$arg{qw(class name generator)};</td></tr>
<tr><td class="h"><a name="846"></a>846</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="847"></a>847</td><td class="c0">35</td><td class="c3"><span title="Avg 197ns">7µs</span></td><td></td><td></td><td class="s"> if (not defined $generator) {</td></tr>
<tr><td class="h"><a name="848"></a>848</td><td class="c3">5</td><td class="c0"><span title="Avg 8µs">41µs</span></td><td class="c3">5</td><td class="c3">11µs</td><td class="s"> my $code = $class->can($name)<div class="calls"><div class="calls_out"> # spent 11µs making 5 calls to <a >UNIVERSAL::can</a>, avg 2µs/call</div></div></td></tr>
<tr><td class="h"><a name="849"></a>849</td><td></td><td></td><td></td><td></td><td class="s"> or Carp::croak "can't locate exported subroutine $name via $class";</td></tr>
<tr><td class="h"><a name="850"></a>850</td><td class="c3">5</td><td class="c3"><span title="Avg 2µs">12µs</span></td><td></td><td></td><td class="s"> return $code;</td></tr>
<tr><td class="h"><a name="851"></a>851</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="852"></a>852</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="853"></a>853</td><td></td><td></td><td></td><td></td><td class="s"> # I considered making this "$class->$generator(" but it seems that</td></tr>
<tr><td class="h"><a name="854"></a>854</td><td></td><td></td><td></td><td></td><td class="s"> # overloading precedence would turn an overloaded-as-code generator object</td></tr>
<tr><td class="h"><a name="855"></a>855</td><td></td><td></td><td></td><td></td><td class="s"> # into a string before code. -- rjbs, 2006-06-11</td></tr>
<tr><td class="h"><a name="856"></a>856</td><td class="c0">30</td><td class="c0"><span title="Avg 5µs">164µs</span></td><td class="c0">60</td><td class="c1">332µs</td><td class="s"> return $generator->($class, $name, $arg->{arg}, $arg->{col})<div class="calls"><div class="calls_out"> # spent 146µs making 8 calls to <a href="Moose-Exporter-pm-line.html#250">Moose::Exporter::__ANON__[Moose/Exporter.pm:263]</a>, avg 18µs/call
# spent 134µs making 1 call to <a href="Sub-Exporter-pm-line.html#937">Sub::Exporter::__ANON__[Sub/Exporter.pm:937]</a>
# spent 35µs making 21 calls to <a href="Moose-Exporter-pm-line.html#193">Moose::Exporter::__ANON__[Moose/Exporter.pm:193]</a>, avg 2µs/call
# spent 17µs making 30 calls to <a href="Params-Util-pm-line.html#Params__Util___CODELIKE">Params::Util::_CODELIKE</a>, avg 577ns/call</div></div></td></tr>
<tr><td class="h"><a name="857"></a>857</td><td></td><td></td><td></td><td></td><td class="s"> if Params::Util::_CODELIKE($generator); ## no critic Private</td></tr>
<tr><td class="h"><a name="858"></a>858</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="859"></a>859</td><td></td><td></td><td></td><td></td><td class="s"> # This "must" be a scalar reference, to a generator method name.</td></tr>
<tr><td class="h"><a name="860"></a>860</td><td></td><td></td><td></td><td></td><td class="s"> # -- rjbs, 2006-12-05</td></tr>
<tr><td class="h"><a name="861"></a>861</td><td></td><td></td><td></td><td></td><td class="s"> return $class->$$generator($name, $arg->{arg}, $arg->{col});</td></tr>
<tr><td class="h"><a name="862"></a>862</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="863"></a>863</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="864"></a>864</td><td></td><td></td><td></td><td></td><td class="s">=head2 default_installer</td></tr>
<tr><td class="h"><a name="865"></a>865</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="866"></a>866</td><td></td><td></td><td></td><td></td><td class="s">This is Sub::Exporter's default installer. It does what Sub::Exporter</td></tr>
<tr><td class="h"><a name="867"></a>867</td><td></td><td></td><td></td><td></td><td class="s">promises: it installs code into the target package.</td></tr>
<tr><td class="h"><a name="868"></a>868</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="869"></a>869</td><td></td><td></td><td></td><td></td><td class="s"> default_installer(\%arg, \@to_export);</td></tr>
<tr><td class="h"><a name="870"></a>870</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="871"></a>871</td><td></td><td></td><td></td><td></td><td class="s">Passed arguments are:</td></tr>
<tr><td class="h"><a name="872"></a>872</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="873"></a>873</td><td></td><td></td><td></td><td></td><td class="s"> into - the package into which exports should be delivered</td></tr>
<tr><td class="h"><a name="874"></a>874</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="875"></a>875</td><td></td><td></td><td></td><td></td><td class="s">C<@to_export> is a list of name/value pairs. The default exporter assigns code</td></tr>
<tr><td class="h"><a name="876"></a>876</td><td></td><td></td><td></td><td></td><td class="s">(the values) to named slots (the names) in the given package. If the name is a</td></tr>
<tr><td class="h"><a name="877"></a>877</td><td></td><td></td><td></td><td></td><td class="s">scalar reference, the scalar reference is made to point to the code reference</td></tr>
<tr><td class="h"><a name="878"></a>878</td><td></td><td></td><td></td><td></td><td class="s">instead.</td></tr>
<tr><td class="h"><a name="879"></a>879</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="880"></a>880</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="881"></a>881</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="882"></a>882</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 1.60ms (293µs+1.31) within Sub::Exporter::default_installer which was called 11 times, avg 146µs/call:
# 11 times (293µs+1.31ms) by Sub::Exporter::_do_import at <a href="Sub-Exporter-pm-line.html#799">line 799</a>, avg 146µs/call</div></div>sub default_installer {</td></tr>
<tr><td class="h"><a name="883"></a>883</td><td class="c1">11</td><td class="c3"><span title="Avg 700ns">8µs</span></td><td></td><td></td><td class="s"> my ($arg, $to_export) = @_;</td></tr>
<tr><td class="h"><a name="884"></a>884</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="885"></a>885</td><td class="c1">11</td><td class="c0"><span title="Avg 8µs">83µs</span></td><td></td><td></td><td class="s"> for (my $i = 0; $i < @$to_export; $i += 2) {</td></tr>
<tr><td class="h"><a name="886"></a>886</td><td class="c0">35</td><td class="c0"><span title="Avg 1µs">40µs</span></td><td></td><td></td><td class="s"> my ($as, $code) = @$to_export[ $i, $i+1 ];</td></tr>
<tr><td class="h"><a name="887"></a>887</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="888"></a>888</td><td></td><td></td><td></td><td></td><td class="s"> # Allow as isa ARRAY to push onto an array?</td></tr>
<tr><td class="h"><a name="889"></a>889</td><td></td><td></td><td></td><td></td><td class="s"> # Allow into isa HASH to install name=>code into hash?</td></tr>
<tr><td class="h"><a name="890"></a>890</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="891"></a>891</td><td class="c0">35</td><td class="c1"><span title="Avg 671ns">24µs</span></td><td></td><td></td><td class="s"> if (ref $as eq 'SCALAR') {</td></tr>
<tr><td class="h"><a name="892"></a>892</td><td></td><td></td><td></td><td></td><td class="s"> $$as = $code;</td></tr>
<tr><td class="h"><a name="893"></a>893</td><td></td><td></td><td></td><td></td><td class="s"> } elsif (ref $as) {</td></tr>
<tr><td class="h"><a name="894"></a>894</td><td></td><td></td><td></td><td></td><td class="s"> Carp::croak "invalid reference type for $as: " . ref $as;</td></tr>
<tr><td class="h"><a name="895"></a>895</td><td></td><td></td><td></td><td></td><td class="s"> } else {</td></tr>
<tr><td class="h"><a name="896"></a>896</td><td class="c0">35</td><td class="c0"><span title="Avg 3µs">91µs</span></td><td class="c0">35</td><td class="c0">1.31ms</td><td class="s"> Sub::Install::reinstall_sub({<div class="calls"><div class="calls_out"> # spent 1.31ms making 35 calls to <a href="Sub-Install-pm-line.html#107">Sub::Install::__ANON__[Sub/Install.pm:132]</a>, avg 37µs/call</div></div></td></tr>
<tr><td class="h"><a name="897"></a>897</td><td></td><td></td><td></td><td></td><td class="s"> code => $code,</td></tr>
<tr><td class="h"><a name="898"></a>898</td><td></td><td></td><td></td><td></td><td class="s"> into => $arg->{into},</td></tr>
<tr><td class="h"><a name="899"></a>899</td><td></td><td></td><td></td><td></td><td class="s"> as => $as</td></tr>
<tr><td class="h"><a name="900"></a>900</td><td></td><td></td><td></td><td></td><td class="s"> });</td></tr>
<tr><td class="h"><a name="901"></a>901</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="902"></a>902</td><td class="c1">11</td><td class="c3"><span title="Avg 400ns">4µs</span></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="903"></a>903</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="904"></a>904</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="905"></a>905</td><td></td><td></td><td></td><td></td><td class="s">sub default_exporter {</td></tr>
<tr><td class="h"><a name="906"></a>906</td><td></td><td></td><td></td><td></td><td class="s"> Carp::cluck "default_exporter is deprecated; call default_installer instead; the semantics are identical";</td></tr>
<tr><td class="h"><a name="907"></a>907</td><td></td><td></td><td></td><td></td><td class="s"> goto &default_installer;</td></tr>
<tr><td class="h"><a name="908"></a>908</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="909"></a>909</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="910"></a>910</td><td></td><td></td><td></td><td></td><td class="s">=head1 EXPORTS</td></tr>
<tr><td class="h"><a name="911"></a>911</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="912"></a>912</td><td></td><td></td><td></td><td></td><td class="s">Sub::Exporter also offers its own exports: the C<setup_exporter> and</td></tr>
<tr><td class="h"><a name="913"></a>913</td><td></td><td></td><td></td><td></td><td class="s">C<build_exporter> routines described above. It also provides a special "setup"</td></tr>
<tr><td class="h"><a name="914"></a>914</td><td></td><td></td><td></td><td></td><td class="s">collector, which will set up an exporter using the parameters passed to it.</td></tr>
<tr><td class="h"><a name="915"></a>915</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="916"></a>916</td><td></td><td></td><td></td><td></td><td class="s">Note that the "setup" collector (seen in examples like the L</SYNOPSIS> above)</td></tr>
<tr><td class="h"><a name="917"></a>917</td><td></td><td></td><td></td><td></td><td class="s">uses C<build_exporter>, not C<setup_exporter>. This means that the special</td></tr>
<tr><td class="h"><a name="918"></a>918</td><td></td><td></td><td></td><td></td><td class="s">arguments like "into" and "as" for C<setup_exporter> are not accepted here.</td></tr>
<tr><td class="h"><a name="919"></a>919</td><td></td><td></td><td></td><td></td><td class="s">Instead, you may write something like:</td></tr>
<tr><td class="h"><a name="920"></a>920</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="921"></a>921</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter</td></tr>
<tr><td class="h"><a name="922"></a>922</td><td></td><td></td><td></td><td></td><td class="s"> { into => 'Target::Package' },</td></tr>
<tr><td class="h"><a name="923"></a>923</td><td></td><td></td><td></td><td></td><td class="s"> -setup => {</td></tr>
<tr><td class="h"><a name="924"></a>924</td><td></td><td></td><td></td><td></td><td class="s"> -as => 'do_import',</td></tr>
<tr><td class="h"><a name="925"></a>925</td><td></td><td></td><td></td><td></td><td class="s"> exports => [ ... ],</td></tr>
<tr><td class="h"><a name="926"></a>926</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="927"></a>927</td><td></td><td></td><td></td><td></td><td class="s"> ;</td></tr>
<tr><td class="h"><a name="928"></a>928</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="929"></a>929</td><td></td><td></td><td></td><td></td><td class="s">Finding a good reason for wanting to do this is left as as exercise for the</td></tr>
<tr><td class="h"><a name="930"></a>930</td><td></td><td></td><td></td><td></td><td class="s">reader.</td></tr>
<tr><td class="h"><a name="931"></a>931</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="932"></a>932</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="933"></a>933</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="934"></a>934</td><td></td><td></td><td></td><td></td><td class="s">setup_exporter({</td></tr>
<tr><td class="h"><a name="935"></a>935</td><td></td><td></td><td></td><td></td><td class="s"> exports => [</td></tr>
<tr><td class="h"><a name="936"></a>936</td><td></td><td></td><td></td><td></td><td class="s"> qw(setup_exporter build_exporter),</td></tr>
<tr><td class="h"><a name="937"></a>937</td><td class="c3">1</td><td class="c3"><span title="Avg 4µs">4µs</span></td><td class="c3">1</td><td class="c3">129µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 134µs (5+129) within Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:937] which was called
# once (5µs+129µs) by Sub::Exporter::default_generator at <a href="Sub-Exporter-pm-line.html#856">line 856</a></div></div> _import => sub { build_exporter($_[2]) },<div class="calls"><div class="calls_out"> # spent 129µs making 1 call to <a href="Sub-Exporter-pm-line.html#706">Sub::Exporter::build_exporter</a></div></div></td></tr>
<tr><td class="h"><a name="938"></a>938</td><td class="c3">1</td><td class="c2"><span title="Avg 16µs">16µs</span></td><td class="c3">1</td><td class="c0">418µs</td><td class="s"> ],<div class="calls"><div class="calls_out"> # spent 418µs making 1 call to <a href="Sub-Exporter-pm-line.html#593">Sub::Exporter::setup_exporter</a></div></div></td></tr>
<tr><td class="h"><a name="939"></a>939</td><td></td><td></td><td></td><td></td><td class="s"> groups => {</td></tr>
<tr><td class="h"><a name="940"></a>940</td><td></td><td></td><td></td><td></td><td class="s"> all => [ qw(setup_exporter build_export) ],</td></tr>
<tr><td class="h"><a name="941"></a>941</td><td></td><td></td><td></td><td></td><td class="s"> },</td></tr>
<tr><td class="h"><a name="942"></a>942</td><td></td><td></td><td></td><td></td><td class="s"> collectors => { -setup => \&_setup },</td></tr>
<tr><td class="h"><a name="943"></a>943</td><td></td><td></td><td></td><td></td><td class="s">});</td></tr>
<tr><td class="h"><a name="944"></a>944</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="945"></a>945</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 8µs within Sub::Exporter::_setup which was called
# once (8µs+0s) by Sub::Exporter::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/Sub/Exporter.pm:544] at <a href="Sub-Exporter-pm-line.html#539">line 539</a></div></div>sub _setup {</td></tr>
<tr><td class="h"><a name="946"></a>946</td><td class="c3">1</td><td class="c3"><span title="Avg 500ns">500ns</span></td><td></td><td></td><td class="s"> my ($value, $arg) = @_;</td></tr>
<tr><td class="h"><a name="947"></a>947</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="948"></a>948</td><td class="c3">1</td><td class="c3"><span title="Avg 700ns">700ns</span></td><td></td><td></td><td class="s"> if (ref $value eq 'HASH') {</td></tr>
<tr><td class="h"><a name="949"></a>949</td><td class="c3">1</td><td class="c3"><span title="Avg 5µs">5µs</span></td><td></td><td></td><td class="s"> push @{ $arg->{import_args} }, [ _import => { -as => 'import', %$value } ];</td></tr>
<tr><td class="h"><a name="950"></a>950</td><td class="c3">1</td><td class="c3"><span title="Avg 4µs">4µs</span></td><td></td><td></td><td class="s"> return 1;</td></tr>
<tr><td class="h"><a name="951"></a>951</td><td></td><td></td><td></td><td></td><td class="s"> } elsif (ref $value eq 'ARRAY') {</td></tr>
<tr><td class="h"><a name="952"></a>952</td><td></td><td></td><td></td><td></td><td class="s"> push @{ $arg->{import_args} },</td></tr>
<tr><td class="h"><a name="953"></a>953</td><td></td><td></td><td></td><td></td><td class="s"> [ _import => { -as => 'import', exports => $value } ];</td></tr>
<tr><td class="h"><a name="954"></a>954</td><td></td><td></td><td></td><td></td><td class="s"> return 1;</td></tr>
<tr><td class="h"><a name="955"></a>955</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="956"></a>956</td><td></td><td></td><td></td><td></td><td class="s"> return;</td></tr>
<tr><td class="h"><a name="957"></a>957</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="958"></a>958</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="959"></a>959</td><td></td><td></td><td></td><td></td><td class="s">=head1 COMPARISONS</td></tr>
<tr><td class="h"><a name="960"></a>960</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="961"></a>961</td><td></td><td></td><td></td><td></td><td class="s">There are a whole mess of exporters on the CPAN. The features included in</td></tr>
<tr><td class="h"><a name="962"></a>962</td><td></td><td></td><td></td><td></td><td class="s">Sub::Exporter set it apart from any existing Exporter. Here's a summary of</td></tr>
<tr><td class="h"><a name="963"></a>963</td><td></td><td></td><td></td><td></td><td class="s">some other exporters and how they compare.</td></tr>
<tr><td class="h"><a name="964"></a>964</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="965"></a>965</td><td></td><td></td><td></td><td></td><td class="s">=over</td></tr>
<tr><td class="h"><a name="966"></a>966</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="967"></a>967</td><td></td><td></td><td></td><td></td><td class="s">=item * L<Exporter> and co.</td></tr>
<tr><td class="h"><a name="968"></a>968</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="969"></a>969</td><td></td><td></td><td></td><td></td><td class="s">This is the standard Perl exporter. Its interface is a little clunky, but it's</td></tr>
<tr><td class="h"><a name="970"></a>970</td><td></td><td></td><td></td><td></td><td class="s">fast and ubiquitous. It can do some things that Sub::Exporter can't: it can</td></tr>
<tr><td class="h"><a name="971"></a>971</td><td></td><td></td><td></td><td></td><td class="s">export things other than routines, it can import "everything in this group</td></tr>
<tr><td class="h"><a name="972"></a>972</td><td></td><td></td><td></td><td></td><td class="s">except this symbol," and some other more esoteric things. These features seem</td></tr>
<tr><td class="h"><a name="973"></a>973</td><td></td><td></td><td></td><td></td><td class="s">to go nearly entirely unused.</td></tr>
<tr><td class="h"><a name="974"></a>974</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="975"></a>975</td><td></td><td></td><td></td><td></td><td class="s">It always exports things exactly as they appear in the exporting module; it</td></tr>
<tr><td class="h"><a name="976"></a>976</td><td></td><td></td><td></td><td></td><td class="s">can't rename or customize routines. Its groups ("tags") can't be nested.</td></tr>
<tr><td class="h"><a name="977"></a>977</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="978"></a>978</td><td></td><td></td><td></td><td></td><td class="s">L<Exporter::Lite> is a whole lot like Exporter, but it does significantly less:</td></tr>
<tr><td class="h"><a name="979"></a>979</td><td></td><td></td><td></td><td></td><td class="s">it supports exporting symbols, but not groups, pattern matching, or negation.</td></tr>
<tr><td class="h"><a name="980"></a>980</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="981"></a>981</td><td></td><td></td><td></td><td></td><td class="s">The fact that Sub::Exporter can't export symbols other than subroutines is</td></tr>
<tr><td class="h"><a name="982"></a>982</td><td></td><td></td><td></td><td></td><td class="s">a good idea, not a missing feature.</td></tr>
<tr><td class="h"><a name="983"></a>983</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="984"></a>984</td><td></td><td></td><td></td><td></td><td class="s">For simple uses, setting up Sub::Exporter is about as easy as Exporter. For</td></tr>
<tr><td class="h"><a name="985"></a>985</td><td></td><td></td><td></td><td></td><td class="s">complex uses, Sub::Exporter makes hard things possible, which would not be</td></tr>
<tr><td class="h"><a name="986"></a>986</td><td></td><td></td><td></td><td></td><td class="s">possible with Exporter. </td></tr>
<tr><td class="h"><a name="987"></a>987</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="988"></a>988</td><td></td><td></td><td></td><td></td><td class="s">When using a module that uses Sub::Exporter, users familiar with Exporter will</td></tr>
<tr><td class="h"><a name="989"></a>989</td><td></td><td></td><td></td><td></td><td class="s">probably see no difference in the basics. These two lines do about the same</td></tr>
<tr><td class="h"><a name="990"></a>990</td><td></td><td></td><td></td><td></td><td class="s">thing in whether the exporting module uses Exporter or Sub::Exporter.</td></tr>
<tr><td class="h"><a name="991"></a>991</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="992"></a>992</td><td></td><td></td><td></td><td></td><td class="s"> use Some::Module qw(foo bar baz);</td></tr>
<tr><td class="h"><a name="993"></a>993</td><td></td><td></td><td></td><td></td><td class="s"> use Some::Module qw(foo :bar baz);</td></tr>
<tr><td class="h"><a name="994"></a>994</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="995"></a>995</td><td></td><td></td><td></td><td></td><td class="s">The definition for exporting in Exporter.pm might look like this:</td></tr>
<tr><td class="h"><a name="996"></a>996</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="997"></a>997</td><td></td><td></td><td></td><td></td><td class="s"> package Some::Module;</td></tr>
<tr><td class="h"><a name="998"></a>998</td><td></td><td></td><td></td><td></td><td class="s"> use base qw(Exporter);</td></tr>
<tr><td class="h"><a name="999"></a>999</td><td></td><td></td><td></td><td></td><td class="s"> our @EXPORT_OK = qw(foo bar baz quux);</td></tr>
<tr><td class="h"><a name="1000"></a>1000</td><td></td><td></td><td></td><td></td><td class="s"> our %EXPORT_TAGS = (bar => [ qw(bar baz) ]);</td></tr>
<tr><td class="h"><a name="1001"></a>1001</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1002"></a>1002</td><td></td><td></td><td></td><td></td><td class="s">Using Sub::Exporter, it would look like this:</td></tr>
<tr><td class="h"><a name="1003"></a>1003</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1004"></a>1004</td><td></td><td></td><td></td><td></td><td class="s"> package Some::Module;</td></tr>
<tr><td class="h"><a name="1005"></a>1005</td><td></td><td></td><td></td><td></td><td class="s"> use Sub::Exporter -setup => {</td></tr>
<tr><td class="h"><a name="1006"></a>1006</td><td></td><td></td><td></td><td></td><td class="s"> exports => [ qw(foo bar baz quux) ],</td></tr>
<tr><td class="h"><a name="1007"></a>1007</td><td></td><td></td><td></td><td></td><td class="s"> groups => { bar => [ qw(bar baz) ]}</td></tr>
<tr><td class="h"><a name="1008"></a>1008</td><td></td><td></td><td></td><td></td><td class="s"> };</td></tr>
<tr><td class="h"><a name="1009"></a>1009</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1010"></a>1010</td><td></td><td></td><td></td><td></td><td class="s">Sub::Exporter respects inheritance, so that a package may export inherited</td></tr>
<tr><td class="h"><a name="1011"></a>1011</td><td></td><td></td><td></td><td></td><td class="s">routines, and will export the most inherited version. Exporting methods</td></tr>
<tr><td class="h"><a name="1012"></a>1012</td><td></td><td></td><td></td><td></td><td class="s">without currying away the invocant is a bad idea, but Sub::Exporter allows you</td></tr>
<tr><td class="h"><a name="1013"></a>1013</td><td></td><td></td><td></td><td></td><td class="s">to do just that -- and anyway, there are other uses for this feature, like</td></tr>
<tr><td class="h"><a name="1014"></a>1014</td><td></td><td></td><td></td><td></td><td class="s">packages of exported subroutines which use inheritance specifically to allow</td></tr>
<tr><td class="h"><a name="1015"></a>1015</td><td></td><td></td><td></td><td></td><td class="s">more specialized, but similar, packages.</td></tr>
<tr><td class="h"><a name="1016"></a>1016</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1017"></a>1017</td><td></td><td></td><td></td><td></td><td class="s">L<Exporter::Easy> provides a wrapper around the standard Exporter. It makes it</td></tr>
<tr><td class="h"><a name="1018"></a>1018</td><td></td><td></td><td></td><td></td><td class="s">simpler to build groups, but doesn't provide any more functionality. Because</td></tr>
<tr><td class="h"><a name="1019"></a>1019</td><td></td><td></td><td></td><td></td><td class="s">it is a front-end to Exporter, it will store your exporter's configuration in</td></tr>
<tr><td class="h"><a name="1020"></a>1020</td><td></td><td></td><td></td><td></td><td class="s">global package variables.</td></tr>
<tr><td class="h"><a name="1021"></a>1021</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1022"></a>1022</td><td></td><td></td><td></td><td></td><td class="s">=item * Attribute-Based Exporters</td></tr>
<tr><td class="h"><a name="1023"></a>1023</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1024"></a>1024</td><td></td><td></td><td></td><td></td><td class="s">Some exporters use attributes to mark variables to export. L<Exporter::Simple></td></tr>
<tr><td class="h"><a name="1025"></a>1025</td><td></td><td></td><td></td><td></td><td class="s">supports exporting any kind of symbol, and supports groups. Using a module</td></tr>
<tr><td class="h"><a name="1026"></a>1026</td><td></td><td></td><td></td><td></td><td class="s">like Exporter or Sub::Exporter, it's easy to look at one place and see what is</td></tr>
<tr><td class="h"><a name="1027"></a>1027</td><td></td><td></td><td></td><td></td><td class="s">exported, but it's impossible to look at a variable definition and see whether</td></tr>
<tr><td class="h"><a name="1028"></a>1028</td><td></td><td></td><td></td><td></td><td class="s">it is exported by that alone. Exporter::Simple makes this trade in reverse:</td></tr>
<tr><td class="h"><a name="1029"></a>1029</td><td></td><td></td><td></td><td></td><td class="s">each variable's declaration includes its export definition, but there is no one</td></tr>
<tr><td class="h"><a name="1030"></a>1030</td><td></td><td></td><td></td><td></td><td class="s">place to look to find a manifest of exports.</td></tr>
<tr><td class="h"><a name="1031"></a>1031</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1032"></a>1032</td><td></td><td></td><td></td><td></td><td class="s">More importantly, Exporter::Simple does not add any new features to those of</td></tr>
<tr><td class="h"><a name="1033"></a>1033</td><td></td><td></td><td></td><td></td><td class="s">Exporter. In fact, like Exporter::Easy, it is just a front-end to Exporter, so</td></tr>
<tr><td class="h"><a name="1034"></a>1034</td><td></td><td></td><td></td><td></td><td class="s">it ends up storing its configuration in global package variables. (This means</td></tr>
<tr><td class="h"><a name="1035"></a>1035</td><td></td><td></td><td></td><td></td><td class="s">that there is one place to look for your exporter's manifest, actually. You</td></tr>
<tr><td class="h"><a name="1036"></a>1036</td><td></td><td></td><td></td><td></td><td class="s">can inspect the C<@EXPORT> package variables, and other related package</td></tr>
<tr><td class="h"><a name="1037"></a>1037</td><td></td><td></td><td></td><td></td><td class="s">variables, at runtime.)</td></tr>
<tr><td class="h"><a name="1038"></a>1038</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1039"></a>1039</td><td></td><td></td><td></td><td></td><td class="s">L<Perl6::Export> isn't actually attribute based, but looks similar. Its syntax</td></tr>
<tr><td class="h"><a name="1040"></a>1040</td><td></td><td></td><td></td><td></td><td class="s">is borrowed from Perl 6, and implemented by a source filter. It is a prototype</td></tr>
<tr><td class="h"><a name="1041"></a>1041</td><td></td><td></td><td></td><td></td><td class="s">of an interface that is still being designed. It should probably be avoided</td></tr>
<tr><td class="h"><a name="1042"></a>1042</td><td></td><td></td><td></td><td></td><td class="s">for production work. On the other hand, L<Perl6::Export::Attrs> implements</td></tr>
<tr><td class="h"><a name="1043"></a>1043</td><td></td><td></td><td></td><td></td><td class="s">Perl 6-like exporting, but translates it into Perl 5 by providing attributes.</td></tr>
<tr><td class="h"><a name="1044"></a>1044</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1045"></a>1045</td><td></td><td></td><td></td><td></td><td class="s">=item * Other Exporters</td></tr>
<tr><td class="h"><a name="1046"></a>1046</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1047"></a>1047</td><td></td><td></td><td></td><td></td><td class="s">L<Exporter::Renaming> wraps the standard Exporter to allow it to export symbols</td></tr>
<tr><td class="h"><a name="1048"></a>1048</td><td></td><td></td><td></td><td></td><td class="s">with changed names.</td></tr>
<tr><td class="h"><a name="1049"></a>1049</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1050"></a>1050</td><td></td><td></td><td></td><td></td><td class="s">L<Class::Exporter> performs a special kind of routine generation, giving each</td></tr>
<tr><td class="h"><a name="1051"></a>1051</td><td></td><td></td><td></td><td></td><td class="s">importing package an instance of your class, and then exporting the instance's</td></tr>
<tr><td class="h"><a name="1052"></a>1052</td><td></td><td></td><td></td><td></td><td class="s">methods as normal routines. (Sub::Exporter, of course, can easily emulate this</td></tr>
<tr><td class="h"><a name="1053"></a>1053</td><td></td><td></td><td></td><td></td><td class="s">behavior, as shown above.)</td></tr>
<tr><td class="h"><a name="1054"></a>1054</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1055"></a>1055</td><td></td><td></td><td></td><td></td><td class="s">L<Exporter::Tidy> implements a form of renaming (using its C<_map> argument)</td></tr>
<tr><td class="h"><a name="1056"></a>1056</td><td></td><td></td><td></td><td></td><td class="s">and of prefixing, and implements groups. It also avoids using package</td></tr>
<tr><td class="h"><a name="1057"></a>1057</td><td></td><td></td><td></td><td></td><td class="s">variables for its configuration.</td></tr>
<tr><td class="h"><a name="1058"></a>1058</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1059"></a>1059</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="1060"></a>1060</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1061"></a>1061</td><td></td><td></td><td></td><td></td><td class="s">=head1 TODO</td></tr>
<tr><td class="h"><a name="1062"></a>1062</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1063"></a>1063</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="1064"></a>1064</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1065"></a>1065</td><td></td><td></td><td></td><td></td><td class="s">=over</td></tr>
<tr><td class="h"><a name="1066"></a>1066</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1067"></a>1067</td><td></td><td></td><td></td><td></td><td class="s">=item * write a set of longer, more demonstrative examples</td></tr>
<tr><td class="h"><a name="1068"></a>1068</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1069"></a>1069</td><td></td><td></td><td></td><td></td><td class="s">=item * solidify the "custom exporter" interface (see C<&default_exporter>)</td></tr>
<tr><td class="h"><a name="1070"></a>1070</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1071"></a>1071</td><td></td><td></td><td></td><td></td><td class="s">=item * add an "always" group</td></tr>
<tr><td class="h"><a name="1072"></a>1072</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1073"></a>1073</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="1074"></a>1074</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1075"></a>1075</td><td></td><td></td><td></td><td></td><td class="s">=head1 AUTHOR</td></tr>
<tr><td class="h"><a name="1076"></a>1076</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1077"></a>1077</td><td></td><td></td><td></td><td></td><td class="s">Ricardo SIGNES, C<< <rjbs@cpan.org> >></td></tr>
<tr><td class="h"><a name="1078"></a>1078</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1079"></a>1079</td><td></td><td></td><td></td><td></td><td class="s">=head1 THANKS</td></tr>
<tr><td class="h"><a name="1080"></a>1080</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1081"></a>1081</td><td></td><td></td><td></td><td></td><td class="s">Hans Dieter Pearcey provided helpful advice while I was writing Sub::Exporter.</td></tr>
<tr><td class="h"><a name="1082"></a>1082</td><td></td><td></td><td></td><td></td><td class="s">Ian Langworth and Shawn Sorichetti asked some good questions and hepled me</td></tr>
<tr><td class="h"><a name="1083"></a>1083</td><td></td><td></td><td></td><td></td><td class="s">improve my documentation quite a bit. Yuval Kogman helped me find a bunch of</td></tr>
<tr><td class="h"><a name="1084"></a>1084</td><td></td><td></td><td></td><td></td><td class="s">little problems.</td></tr>
<tr><td class="h"><a name="1085"></a>1085</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1086"></a>1086</td><td></td><td></td><td></td><td></td><td class="s">Thanks, guys! </td></tr>
<tr><td class="h"><a name="1087"></a>1087</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1088"></a>1088</td><td></td><td></td><td></td><td></td><td class="s">=head1 BUGS</td></tr>
<tr><td class="h"><a name="1089"></a>1089</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1090"></a>1090</td><td></td><td></td><td></td><td></td><td class="s">Please report any bugs or feature requests through the web interface at</td></tr>
<tr><td class="h"><a name="1091"></a>1091</td><td></td><td></td><td></td><td></td><td class="s">L<http://rt.cpan.org>. I will be notified, and then you'll automatically be</td></tr>
<tr><td class="h"><a name="1092"></a>1092</td><td></td><td></td><td></td><td></td><td class="s">notified of progress on your bug as I make changes.</td></tr>
<tr><td class="h"><a name="1093"></a>1093</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1094"></a>1094</td><td></td><td></td><td></td><td></td><td class="s">=head1 COPYRIGHT</td></tr>
<tr><td class="h"><a name="1095"></a>1095</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1096"></a>1096</td><td></td><td></td><td></td><td></td><td class="s">Copyright 2006-2007, Ricardo SIGNES. This program is free software; you can</td></tr>
<tr><td class="h"><a name="1097"></a>1097</td><td></td><td></td><td></td><td></td><td class="s">redistribute it and/or modify it under the same terms as Perl itself.</td></tr>
<tr><td class="h"><a name="1098"></a>1098</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1099"></a>1099</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="1100"></a>1100</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="1101"></a>1101</td><td class="c3">1</td><td class="c3"><span title="Avg 15µs">15µs</span></td><td></td><td></td><td class="s">"jn8:32"; # <-- magic true value</td></tr>
<tr><td class="h"><a name="Sub__Exporter__CORE_match"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 4µs within Sub::Exporter::CORE:match which was called
# once (4µs+0s) by Sub::Exporter::_assert_collector_names_ok at <a href="Sub-Exporter-pm-line.html#646">line 646 of Sub/Exporter.pm</a></div></div>sub Sub::Exporter::CORE:match; # xsub<br /> </td></tr>
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