From: Eric Wong <e@80x24.org>
Date: Sat, 10 Sep 2022 08:17:10 +0000 (+0000)
Subject: view: _th_index_lite: use `//' defined-or op
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=7e2f017fdde71d74ef29a43e9ee966daba42b2f4;p=public-inbox.git

view: _th_index_lite: use `//' defined-or op

Just something I noticed while evaluating this subroutine
for the buffering overhaul.
---

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 3282d4f9..08ba54bb 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -302,8 +302,7 @@ sub _th_index_lite {
 	my $rv = '';
 	my $mapping = $ctx->{mapping} or return $rv;
 	my $pad = '  ';
-	my $mid_map = $mapping->{$mid_raw};
-	defined $mid_map or
+	my $mid_map = $mapping->{$mid_raw} //
 		return 'public-inbox BUG: '.ascii_html($mid_raw).' not mapped';
 	my ($attr, $node, $idx, $level) = @$mid_map;
 	my $children = $node->{children};