cf sub builder:<div><span class="Apple-style-span" style="font-family: Times; font-size: medium; "><pre style="word-wrap: break-word; white-space: pre-wrap; ">    local $_mount = sub {
        $mount_is_called++;
        $urlmap->map(@_);
        $urlmap;
    };
    local $_add = sub {
        $self->add_middleware(@_);
    };
    local $_add_if = sub {
        $self->add_middleware_if(@_);
    };</pre></span><br><div class="gmail_quote">On Wed, Oct 5, 2011 at 4:06 PM, Jay Hannah <span dir="ltr"><<a href="mailto:jay.hannah@iinteractive.com">jay.hannah@iinteractive.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
haha... no clue what's going on...<br>
<br>
j<br>
<br>
<br>
<br>
<br>
<a href="https://github.com/miyagawa/Plack/blob/master/lib/Plack/Builder.pm#L63" target="_blank">https://github.com/miyagawa/Plack/blob/master/lib/Plack/Builder.pm#L63</a><br>
<br>
our $_add = our $_add_if = our $_mount = sub {<br>
    Carp::croak("enable/mount should be called inside builder {} block");<br>
};<br>
<br>
sub add      { Carp::carp("add is deprecated. Use 'enable'"); $_add->(@_) }<br>
sub enable         { $_add->(@_) }<br>
<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>Andrew Sterling Hanenkamp<br><a href="mailto:sterling@hanenkamp.com">sterling@hanenkamp.com</a><br>785.370.4454<br>
</div>