From: Brandon L Black <blblack@gmail.com>
Date: Sat, 21 Apr 2007 16:00:13 +0000 (+0000)
Subject: another little optimization
X-Git-Tag: 0.07~3
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f4b986039f6a4af27b3bb385b9b524ba79374b9f;p=gitmo%2FAlgorithm-C3.git

another little optimization
---

diff --git a/lib/Algorithm/C3.pm b/lib/Algorithm/C3.pm
index ec9363c..66c32ff 100644
--- a/lib/Algorithm/C3.pm
+++ b/lib/Algorithm/C3.pm
@@ -70,10 +70,8 @@ sub merge {
             # http://www.python.org/2.3/mro.html :)
 
             # Initial set (make sure everything is copied - it will be modded)
-            my @seqs;
-            foreach (@$recurse_mergeout, $current_parents) {
-                push(@seqs, [@$_]) if @$_;
-            }
+            my @seqs = map { [@$_] } @$recurse_mergeout;
+            push(@seqs, [@$current_parents]) if @$current_parents;
 
             # Construct the tail-checking hash (actually, it's cheaper and still
             #   correct to re-use it throughout this function)
@@ -124,7 +122,7 @@ sub merge {
         ($current_root, $current_parents, $recurse_mergeout, $i)
             = @{pop @STACK};
 
-        push(@$recurse_mergeout, $mergeout);
+        push(@$recurse_mergeout, $mergeout) if @$mergeout;
     }
 }