From: Rafael Garcia-Suarez <rgarciasuarez@gmail.com>
Date: Mon, 10 Sep 2007 08:19:58 +0000 (+0000)
Subject: Remove the "performance considerations" paragraph.
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=58852444fed22b881d4d7c0fb448bf375e4033c1;p=p5sagit%2Fp5-mst-13.2.git

Remove the "performance considerations" paragraph.

p4raw-id: //depot/perl@31836
---

diff --git a/lib/mro.pm b/lib/mro.pm
index a9f3927..858b8e5 100644
--- a/lib/mro.pm
+++ b/lib/mro.pm
@@ -315,45 +315,6 @@ In simple cases, it is equivalent to:
 But there are some cases where only this solution
 works (like C<goto &maybe::next::method>);
 
-=head1 PERFORMANCE CONSIDERATIONS
-
-Specifying the mro type of a class before setting C<@ISA> will
-be faster than the other way around.  Also, making all of your
-C<@ISA> manipulations in a single assignment or push statement
-will be faster that doing them one by one (which is what
-C<use base> does currently).
-
-Examples:
-
-  # The slowest way
-  package Foo;
-  use base qw/A B C/;
-  use mro 'c3';
-
-  # Equivalently slow
-  package Foo;
-  our @ISA;
-  require A; push(@ISA, 'A');
-  require B; push(@ISA, 'B');
-  require C; push(@ISA, 'C');
-  use mro 'c3';
-
-  # The fastest way
-  # (not exactly equivalent to above,
-  #   as base.pm can do other magic)
-  package Foo;
-  use mro 'c3';
-  require A;
-  require B;
-  require C;
-  our @ISA = qw/A B C/;
-
-Generally speaking, every time C<@ISA> is modified, the MRO
-of that class will be recalculated because of the way array
-magic works.  Cutting down on unecessary recalculations is
-a win, especially with complex class hierarchies and/or
-the c3 mro.
-
 =head1 SEE ALSO
 
 =head2 The original Dylan paper