Moved Class-ISA from lib/ to ext/

5 files changed, 1 insertions, 355 deletions

diff --git a/lib/.gitignore b/lib/.gitignore
index 9b761c7ded..be06fddce9 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -20,6 +20,7 @@
 /Config_git.pl
 /CGI
 /CGI.pm
+/Class/ISA.pm
 /CPAN.pm
 /CPAN
 /CPAN/API
diff --git a/lib/Class/ISA.pm b/lib/Class/ISA.pm
deleted file mode 100644
index e1371912e2..0000000000
--- a/lib/Class/ISA.pm
+++ /dev/null
@@ -1,214 +0,0 @@
-#!/usr/local/bin/perl
-# Time-stamp: "2004-12-29 20:01:02 AST" -*-Perl-*-
-
-package Class::ISA;
-require 5;
-use strict;
-use vars qw($Debug $VERSION);
-$VERSION = '0.33';
-$Debug = 0 unless defined $Debug;
-
-=head1 NAME
-
-Class::ISA -- report the search path for a class's ISA tree
-
-=head1 SYNOPSIS
-
-  # Suppose you go: use Food::Fishstick, and that uses and
-  # inherits from other things, which in turn use and inherit
-  # from other things.  And suppose, for sake of brevity of
-  # example, that their ISA tree is the same as:
-
-  @Food::Fishstick::ISA = qw(Food::Fish  Life::Fungus  Chemicals);
-  @Food::Fish::ISA = qw(Food);
-  @Food::ISA = qw(Matter);
-  @Life::Fungus::ISA = qw(Life);
-  @Chemicals::ISA = qw(Matter);
-  @Life::ISA = qw(Matter);
-  @Matter::ISA = qw();
-
-  use Class::ISA;
-  print "Food::Fishstick path is:\n ",
-        join(", ", Class::ISA::super_path('Food::Fishstick')),
-        "\n";
-
-That prints:
-
-  Food::Fishstick path is:
-   Food::Fish, Food, Matter, Life::Fungus, Life, Chemicals
-
-=head1 DESCRIPTION
-
-Suppose you have a class (like Food::Fish::Fishstick) that is derived,
-via its @ISA, from one or more superclasses (as Food::Fish::Fishstick
-is from Food::Fish, Life::Fungus, and Chemicals), and some of those
-superclasses may themselves each be derived, via its @ISA, from one or
-more superclasses (as above).
-
-When, then, you call a method in that class ($fishstick->calories),
-Perl first searches there for that method, but if it's not there, it
-goes searching in its superclasses, and so on, in a depth-first (or
-maybe "height-first" is the word) search.  In the above example, it'd
-first look in Food::Fish, then Food, then Matter, then Life::Fungus,
-then Life, then Chemicals.
-
-This library, Class::ISA, provides functions that return that list --
-the list (in order) of names of classes Perl would search to find a
-method, with no duplicates.
-
-=head1 FUNCTIONS
-
-=over
-
-=item the function Class::ISA::super_path($CLASS)
-
-This returns the ordered list of names of classes that Perl would
-search thru in order to find a method, with no duplicates in the list.
-$CLASS is not included in the list.  UNIVERSAL is not included -- if
-you need to consider it, add it to the end.
-
-
-=item the function Class::ISA::self_and_super_path($CLASS)
-
-Just like C<super_path>, except that $CLASS is included as the first
-element.
-
-=item the function Class::ISA::self_and_super_versions($CLASS)
-
-This returns a hash whose keys are $CLASS and its
-(super-)superclasses, and whose values are the contents of each
-class's $VERSION (or undef, for classes with no $VERSION).
-
-The code for self_and_super_versions is meant to serve as an example
-for precisely the kind of tasks I anticipate that self_and_super_path
-and super_path will be used for.  You are strongly advised to read the
-source for self_and_super_versions, and the comments there.
-
-=back
-
-=head1 CAUTIONARY NOTES
-
-* Class::ISA doesn't export anything.  You have to address the
-functions with a "Class::ISA::" on the front.
-
-* Contrary to its name, Class::ISA isn't a class; it's just a package.
-Strange, isn't it?
-
-* Say you have a loop in the ISA tree of the class you're calling one
-of the Class::ISA functions on: say that Food inherits from Matter,
-but Matter inherits from Food (for sake of argument).  If Perl, while
-searching for a method, actually discovers this cyclicity, it will
-throw a fatal error.  The functions in Class::ISA effectively ignore
-this cyclicity; the Class::ISA algorithm is "never go down the same
-path twice", and cyclicities are just a special case of that.
-
-* The Class::ISA functions just look at @ISAs.  But theoretically, I
-suppose, AUTOLOADs could bypass Perl's ISA-based search mechanism and
-do whatever they please.  That would be bad behavior, tho; and I try
-not to think about that.
-
-* If Perl can't find a method anywhere in the ISA tree, it then looks
-in the magical class UNIVERSAL.  This is rarely relevant to the tasks
-that I expect Class::ISA functions to be put to, but if it matters to
-you, then instead of this:
-
-  @supers = Class::Tree::super_path($class);
-
-do this:
-
-  @supers = (Class::Tree::super_path($class), 'UNIVERSAL');
-
-And don't say no-one ever told ya!
-
-* When you call them, the Class::ISA functions look at @ISAs anew --
-that is, there is no memoization, and so if ISAs change during
-runtime, you get the current ISA tree's path, not anything memoized.
-However, changing ISAs at runtime is probably a sign that you're out
-of your mind!
-
-=head1 COPYRIGHT
-
-Copyright (c) 1999, 2000 Sean M. Burke. All rights reserved.
-
-This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
-
-=head1 AUTHOR
-
-Sean M. Burke C<sburke@cpan.org>
-
-=cut
-
-###########################################################################
-
-sub self_and_super_versions {
-  no strict 'refs';
-  map {
-        $_ => (defined(${"$_\::VERSION"}) ? ${"$_\::VERSION"} : undef)
-      } self_and_super_path($_[0])
-}
-
-# Also consider magic like:
-#   no strict 'refs';
-#   my %class2SomeHashr =
-#     map { defined(%{"$_\::SomeHash"}) ? ($_ => \%{"$_\::SomeHash"}) : () }
-#         Class::ISA::self_and_super_path($class);
-# to get a hash of refs to all the defined (and non-empty) hashes in
-# $class and its superclasses.
-#
-# Or even consider this incantation for doing something like hash-data
-# inheritance:
-#   no strict 'refs';
-#   %union_hash = 
-#     map { defined(%{"$_\::SomeHash"}) ? %{"$_\::SomeHash"}) : () }
-#         reverse(Class::ISA::self_and_super_path($class));
-# Consider that reverse() is necessary because with
-#   %foo = ('a', 'wun', 'b', 'tiw', 'a', 'foist');
-# $foo{'a'} is 'foist', not 'wun'.
-
-###########################################################################
-sub super_path {
-  my @ret = &self_and_super_path(@_);
-  shift @ret if @ret;
-  return @ret;
-}
-
-#--------------------------------------------------------------------------
-sub self_and_super_path {
-  # Assumption: searching is depth-first.
-  # Assumption: '' (empty string) can't be a class package name.
-  # Note: 'UNIVERSAL' is not given any special treatment.
-  return () unless @_;
-
-  my @out = ();
-
-  my @in_stack = ($_[0]);
-  my %seen = ($_[0] => 1);
-
-  my $current;
-  while(@in_stack) {
-    next unless defined($current = shift @in_stack) && length($current);
-    print "At $current\n" if $Debug;
-    push @out, $current;
-    no strict 'refs';
-    unshift @in_stack,
-      map
-        { my $c = $_; # copy, to avoid being destructive
-          substr($c,0,2) = "main::" if substr($c,0,2) eq '::';
-           # Canonize the :: -> main::, ::foo -> main::foo thing.
-           # Should I ever canonize the Foo'Bar = Foo::Bar thing? 
-          $seen{$c}++ ? () : $c;
-        }
-        @{"$current\::ISA"}
-    ;
-    # I.e., if this class has any parents (at least, ones I've never seen
-    # before), push them, in order, onto the stack of classes I need to
-    # explore.
-  }
-
-  return @out;
-}
-#--------------------------------------------------------------------------
-1;
-
-__END__
diff --git a/lib/Class/ISA/ChangeLog b/lib/Class/ISA/ChangeLog
deleted file mode 100644
index ac18541b1e..0000000000
--- a/lib/Class/ISA/ChangeLog
+++ /dev/null
@@ -1,24 +0,0 @@
-Revision history for Perl extension Class::ISA
-                                        Time-stamp: "2004-12-29 20:00:49 AST"
-
-2004-12-29  Sean M. Burke  sburke@cpan.org
-	
-	* Release 0.33 -- just rebundling.  No code changes.
-	
-	
-2000-05-13  Sean M. Burke  sburke@cpan.org
-
-	* Release 0.32 -- Just noting my new email address.
-
-	
-1999-05-14  Sean M. Burke  sburke@netadventure.net
-
-	* Release 0.31 -- release version.
-
-	No changes in functionality -- just changed the core algorithm to
-	something that should behave the same, but is cleaner and faster.
-
-
-1999-01-23  Sean M. Burke  sburke@netadventure.net
-
-	* Release 0.20 -- first release version.
diff --git a/lib/Class/ISA/t/00_about_verbose.t b/lib/Class/ISA/t/00_about_verbose.t
deleted file mode 100644
index edc3023f84..0000000000
--- a/lib/Class/ISA/t/00_about_verbose.t
+++ /dev/null
@@ -1,89 +0,0 @@
-BEGIN {
-    chdir 't' if -d 't';
-    @INC = '../lib';
-}
-
-require 5;
-# Time-stamp: "2004-12-29 20:57:15 AST"
-# Summary of, well, things.
-
-use Test;
-BEGIN {plan tests => 2};
-ok 1;
-
-use Class::ISA ();
-
-#chdir "t" if -e "t";
-
-{
-  my @out;
-  push @out,
-    "\n\nPerl v",
-    defined($^V) ? sprintf('%vd', $^V) : $],
-    " under $^O ",
-    (defined(&Win32::BuildNumber) and defined &Win32::BuildNumber())
-      ? ("(Win32::BuildNumber ", &Win32::BuildNumber(), ")") : (),
-    (defined $MacPerl::Version)
-      ? ("(MacPerl version $MacPerl::Version)") : (),
-    "\n"
-  ;
-
-  # Ugly code to walk the symbol tables:
-  my %v;
-  my @stack = ('');  # start out in %::
-  my $this;
-  my $count = 0;
-  my $pref;
-  while(@stack) {
-    $this = shift @stack;
-    die "Too many packages?" if ++$count > 1000;
-    next if exists $v{$this};
-    next if $this eq 'main'; # %main:: is %::
-
-    #print "Peeking at $this => ${$this . '::VERSION'}\n";
-    
-    if(defined ${$this . '::VERSION'} ) {
-      $v{$this} = ${$this . '::VERSION'}
-    } elsif(
-       defined *{$this . '::ISA'} or defined &{$this . '::import'}
-       or ($this ne '' and grep defined *{$_}{'CODE'}, values %{$this . "::"})
-       # If it has an ISA, an import, or any subs...
-    ) {
-      # It's a class/module with no version.
-      $v{$this} = undef;
-    } else {
-      # It's probably an unpopulated package.
-      ## $v{$this} = '...';
-    }
-    
-    $pref = length($this) ? "$this\::" : '';
-    push @stack, map m/^(.+)::$/ ? "$pref$1" : (), keys %{$this . '::'};
-    #print "Stack: @stack\n";
-  }
-  push @out, " Modules in memory:\n";
-  delete @v{'', '[none]'};
-  foreach my $p (sort {lc($a) cmp lc($b)} keys %v) {
-    $indent = ' ' x (2 + ($p =~ tr/:/:/));
-    push @out,  '  ', $indent, $p, defined($v{$p}) ? " v$v{$p};\n" : ";\n";
-  }
-  push @out, sprintf "[at %s (local) / %s (GMT)]\n",
-    scalar(gmtime), scalar(localtime);
-  my $x = join '', @out;
-  $x =~ s/^/#/mg;
-  print $x;
-}
-
-print "# Running",
-  (chr(65) eq 'A') ? " in an ASCII world.\n" : " in a non-ASCII world.\n",
-  "#\n",
-;
-
-print "# \@INC:\n", map("#   [$_]\n", @INC), "#\n#\n";
-
-print "# \%INC:\n";
-foreach my $x (sort {lc($a) cmp lc($b)} keys %INC) {
-  print "#   [$x] = [", $INC{$x} || '', "]\n";
-}
-
-ok 1;
-
diff --git a/lib/Class/ISA/t/01_old_junk.t b/lib/Class/ISA/t/01_old_junk.t
deleted file mode 100644
index 8afe373cd2..0000000000
--- a/lib/Class/ISA/t/01_old_junk.t
+++ /dev/null
@@ -1,28 +0,0 @@
-BEGIN {
-    chdir 't' if -d 't';
-    @INC = '../lib';
-}
-
-# Time-stamp: "2004-12-29 19:59:33 AST"
-
-BEGIN { $| = 1; print "1..2\n"; }
-END {print "not ok 1\n" unless $loaded;}
-use Class::ISA;
-$loaded = 1;
-print "ok 1\n";
-
-  @Food::Fishstick::ISA = qw(Food::Fish  Life::Fungus  Chemicals);
-  @Food::Fish::ISA = qw(Food);
-  @Food::ISA = qw(Matter);
-  @Life::Fungus::ISA = qw(Life);
-  @Chemicals::ISA = qw(Matter);
-  @Life::ISA = qw(Matter);
-  @Matter::ISA = qw();
-
-  use Class::ISA;
-  my @path = Class::ISA::super_path('Food::Fishstick');
-  my $flat_path = join ' ', @path;
-  print "#Food::Fishstick path is:\n# $flat_path\n";
-  print
-   "Food::Fish Food Matter Life::Fungus Life Chemicals" eq $flat_path ?
-     "ok 2\n" : "fail 2!\n";