This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Update to NEXT by Damian.
authorRafael Garcia-Suarez <rgarciasuarez@gmail.com>
Tue, 3 Jun 2008 06:29:35 +0000 (06:29 +0000)
committerRafael Garcia-Suarez <rgarciasuarez@gmail.com>
Tue, 3 Jun 2008 06:29:35 +0000 (06:29 +0000)
This fixes the working of NEXT with AUTOLOAD.

p4raw-id: //depot/perl@33991

lib/NEXT.pm

index 57e2b41..f695f96 100644 (file)
@@ -1,5 +1,5 @@
 package NEXT;
-$VERSION = '0.60_02';
+$VERSION = '0.60_03';
 use Carp;
 use strict;
 use overload ();
@@ -30,139 +30,151 @@ sub NEXT::ELSEWHERE::ordered_ancestors
                    :                0 } @outlist;
 }
 
-sub AUTOLOAD
+sub NEXT::ELSEWHERE::buildAUTOLOAD
 {
-       my ($self) = @_;
-       my $depth = 1;
-       until ((caller($depth))[3] !~ /^\(eval\)$/) { $depth++ }
-       my $caller = (caller($depth))[3];
-       my $wanted = $NEXT::AUTOLOAD || 'NEXT::AUTOLOAD';
-       undef $NEXT::AUTOLOAD;
-       my ($caller_class, $caller_method) = $caller =~ m{(.*)::(.*)}g;
-       my ($wanted_class, $wanted_method) = $wanted =~ m{(.*)::(.*)}g;
-       croak "Can't call $wanted from $caller"
-               unless $caller_method eq $wanted_method;
-
-       my $key = ref $self && overload::Overloaded($self)
-           ? overload::StrVal($self) : $self;
-
-       local ($NEXT::NEXT{$key,$wanted_method}, $NEXT::SEEN) =
-             ($NEXT::NEXT{$key,$wanted_method}, $NEXT::SEEN);
-
-       unless ($NEXT::NEXT{$key,$wanted_method}) {
-               my @forebears =
-                       NEXT::ELSEWHERE::ancestors ref $self || $self,
-                                                  $wanted_class;
-               while (@forebears) {
-                       last if shift @forebears eq $caller_class
-               }
-               no strict 'refs';
-               @{$NEXT::NEXT{$key,$wanted_method}} = 
-                       map { *{"${_}::$caller_method"}{CODE}||() } @forebears
-                               unless $wanted_method eq 'AUTOLOAD';
-               @{$NEXT::NEXT{$key,$wanted_method}} = 
-                       map { (*{"${_}::AUTOLOAD"}{CODE}) ? "${_}::AUTOLOAD" : ()} @forebears
-                               unless @{$NEXT::NEXT{$key,$wanted_method}||[]};
-               $NEXT::SEEN->{$key,*{$caller}{CODE}}++;
-       }
-       my $call_method = shift @{$NEXT::NEXT{$key,$wanted_method}};
-       while ($wanted_class =~ /^NEXT\b.*\b(UNSEEN|DISTINCT)\b/
-              && defined $call_method
-              && $NEXT::SEEN->{$key,$call_method}++) {
-               $call_method = shift @{$NEXT::NEXT{$key,$wanted_method}};
-       }
-       unless (defined $call_method) {
-               return unless $wanted_class =~ /^NEXT:.*:ACTUAL/;
-               (local $Carp::CarpLevel)++;
-               croak qq(Can't locate object method "$wanted_method" ),
-                     qq(via package "$caller_class");
-       };
-       return $self->$call_method(@_[1..$#_]) if ref $call_method eq 'CODE';
-       no strict 'refs';
-       ($wanted_method=${$caller_class."::AUTOLOAD"}) =~ s/.*:://
-               if $wanted_method eq 'AUTOLOAD';
-       $$call_method = $caller_class."::NEXT::".$wanted_method;
-       return $call_method->(@_);
+    my $autoload_name = caller() . '::AUTOLOAD';
+
+    no strict 'refs';
+    *{$autoload_name} = sub {
+        my ($self) = @_;
+        my $depth = 1;
+        until (((caller($depth))[3]||q{}) !~ /^\(eval\)$/) { $depth++ }
+        my $caller = (caller($depth))[3];
+        my $wanted = $NEXT::AUTOLOAD || $autoload_name;
+        undef $NEXT::AUTOLOAD;
+        my ($caller_class, $caller_method) = $caller =~ m{(.*)::(.*)}g;
+        my ($wanted_class, $wanted_method) = $wanted =~ m{(.*)::(.*)}g;
+        croak "Can't call $wanted from $caller"
+            unless $caller_method eq $wanted_method;
+
+        my $key = ref $self && overload::Overloaded($self)
+            ? overload::StrVal($self) : $self;
+
+        local ($NEXT::NEXT{$key,$wanted_method}, $NEXT::SEEN) =
+            ($NEXT::NEXT{$key,$wanted_method}, $NEXT::SEEN);
+
+        unless ($NEXT::NEXT{$key,$wanted_method}) {
+            my @forebears =
+                NEXT::ELSEWHERE::ancestors ref $self || $self,
+                            $wanted_class;
+            while (@forebears) {
+                last if shift @forebears eq $caller_class
+            }
+            no strict 'refs';
+            @{$NEXT::NEXT{$key,$wanted_method}} = 
+                map { *{"${_}::$caller_method"}{CODE}||() } @forebears
+                    unless $wanted_method eq 'AUTOLOAD';
+            @{$NEXT::NEXT{$key,$wanted_method}} = 
+                map { (*{"${_}::AUTOLOAD"}{CODE}) ? "${_}::AUTOLOAD" : ()} @forebears
+                    unless @{$NEXT::NEXT{$key,$wanted_method}||[]};
+            $NEXT::SEEN->{$key,*{$caller}{CODE}}++;
+        }
+        my $call_method = shift @{$NEXT::NEXT{$key,$wanted_method}};
+        while ($wanted_class =~ /^NEXT\b.*\b(UNSEEN|DISTINCT)\b/
+            && defined $call_method
+            && $NEXT::SEEN->{$key,$call_method}++) {
+            $call_method = shift @{$NEXT::NEXT{$key,$wanted_method}};
+        }
+        unless (defined $call_method) {
+            return unless $wanted_class =~ /^NEXT:.*:ACTUAL/;
+            (local $Carp::CarpLevel)++;
+            croak qq(Can't locate object method "$wanted_method" ),
+                qq(via package "$caller_class");
+        };
+        return $self->$call_method(@_[1..$#_]) if ref $call_method eq 'CODE';
+        no strict 'refs';
+        ($wanted_method=${$caller_class."::AUTOLOAD"}) =~ s/.*:://
+            if $wanted_method eq 'AUTOLOAD';
+        $$call_method = $caller_class."::NEXT::".$wanted_method;
+        return $call_method->(@_);
+    };
 }
 
 no strict 'vars';
-package NEXT::UNSEEN;          @ISA = 'NEXT';
-package NEXT::DISTINCT;                @ISA = 'NEXT';
-package NEXT::ACTUAL;          @ISA = 'NEXT';
-package NEXT::ACTUAL::UNSEEN;  @ISA = 'NEXT';
-package NEXT::ACTUAL::DISTINCT;        @ISA = 'NEXT';
-package NEXT::UNSEEN::ACTUAL;  @ISA = 'NEXT';
-package NEXT::DISTINCT::ACTUAL;        @ISA = 'NEXT';
-
-package EVERY::LAST;           @ISA = 'EVERY';
-package EVERY;                 @ISA = 'NEXT';
-sub AUTOLOAD
-{
-       my ($self) = @_;
-       my $depth = 1;
-       until ((caller($depth))[3] !~ /^\(eval\)$/) { $depth++ }
-       my $caller = (caller($depth))[3];
-       my $wanted = $EVERY::AUTOLOAD || 'EVERY::AUTOLOAD';
-       undef $EVERY::AUTOLOAD;
-       my ($wanted_class, $wanted_method) = $wanted =~ m{(.*)::(.*)}g;
-
-       my $key = ref($self) && overload::Overloaded($self)
-           ? overload::StrVal($self) : $self;
-
-       local $NEXT::ALREADY_IN_EVERY{$key,$wanted_method} =
-             $NEXT::ALREADY_IN_EVERY{$key,$wanted_method};
-
-       return if $NEXT::ALREADY_IN_EVERY{$key,$wanted_method}++;
-
-       my @forebears = NEXT::ELSEWHERE::ordered_ancestors ref $self || $self,
-                                                          $wanted_class;
-       @forebears = reverse @forebears if $wanted_class =~ /\bLAST\b/;
-       no strict 'refs';
-       my %seen;
-       my @every = map { my $sub = "${_}::$wanted_method";
-                         !*{$sub}{CODE} || $seen{$sub}++ ? () : $sub
-                       } @forebears
-                               unless $wanted_method eq 'AUTOLOAD';
-
-       my $want = wantarray;
-       if (@every) {
-               if ($want) {
-                       return map {($_, [$self->$_(@_[1..$#_])])} @every;
-               }
-               elsif (defined $want) {
-                       return { map {($_, scalar($self->$_(@_[1..$#_])))}
-                                    @every
-                              };
-               }
-               else {
-                       $self->$_(@_[1..$#_]) for @every;
-                       return;
-               }
-       }
-
-       @every = map { my $sub = "${_}::AUTOLOAD";
-                      !*{$sub}{CODE} || $seen{$sub}++ ? () : "${_}::AUTOLOAD"
-                    } @forebears;
-       if ($want) {
-               return map { $$_ = ref($self)."::EVERY::".$wanted_method;
-                            ($_, [$self->$_(@_[1..$#_])]);
-                          } @every;
-       }
-       elsif (defined $want) {
-               return { map { $$_ = ref($self)."::EVERY::".$wanted_method;
-                              ($_, scalar($self->$_(@_[1..$#_])))
-                            } @every
-                      };
-       }
-       else {
-               for (@every) {
-                       $$_ = ref($self)."::EVERY::".$wanted_method;
-                       $self->$_(@_[1..$#_]);
-               }
-               return;
-       }
+package NEXT;                                  NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::UNSEEN;          @ISA = 'NEXT';     NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::DISTINCT;                @ISA = 'NEXT';     NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::ACTUAL;          @ISA = 'NEXT';     NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::ACTUAL::UNSEEN;  @ISA = 'NEXT'; NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::ACTUAL::DISTINCT;        @ISA = 'NEXT'; NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::UNSEEN::ACTUAL;  @ISA = 'NEXT'; NEXT::ELSEWHERE::buildAUTOLOAD();
+package NEXT::DISTINCT::ACTUAL;        @ISA = 'NEXT'; NEXT::ELSEWHERE::buildAUTOLOAD();
+
+package EVERY;
+
+sub EVERY::ELSEWHERE::buildAUTOLOAD {
+    my $autoload_name = caller() . '::AUTOLOAD';
+
+    no strict 'refs';
+    *{$autoload_name} = sub {
+        my ($self) = @_;
+        my $depth = 1;
+        until (((caller($depth))[3]||q{}) !~ /^\(eval\)$/) { $depth++ }
+        my $caller = (caller($depth))[3];
+        my $wanted = $EVERY::AUTOLOAD || $autoload_name;
+        undef $EVERY::AUTOLOAD;
+        my ($wanted_class, $wanted_method) = $wanted =~ m{(.*)::(.*)}g;
+
+        my $key = ref($self) && overload::Overloaded($self)
+            ? overload::StrVal($self) : $self;
+
+        local $NEXT::ALREADY_IN_EVERY{$key,$wanted_method} =
+            $NEXT::ALREADY_IN_EVERY{$key,$wanted_method};
+
+        return if $NEXT::ALREADY_IN_EVERY{$key,$wanted_method}++;
+
+        my @forebears = NEXT::ELSEWHERE::ordered_ancestors ref $self || $self,
+                                        $wanted_class;
+        @forebears = reverse @forebears if $wanted_class =~ /\bLAST\b/;
+        no strict 'refs';
+        my %seen;
+        my @every = map { my $sub = "${_}::$wanted_method";
+                    !*{$sub}{CODE} || $seen{$sub}++ ? () : $sub
+                    } @forebears
+                    unless $wanted_method eq 'AUTOLOAD';
+
+        my $want = wantarray;
+        if (@every) {
+            if ($want) {
+                return map {($_, [$self->$_(@_[1..$#_])])} @every;
+            }
+            elsif (defined $want) {
+                return { map {($_, scalar($self->$_(@_[1..$#_])))}
+                        @every
+                    };
+            }
+            else {
+                $self->$_(@_[1..$#_]) for @every;
+                return;
+            }
+        }
+
+        @every = map { my $sub = "${_}::AUTOLOAD";
+                !*{$sub}{CODE} || $seen{$sub}++ ? () : "${_}::AUTOLOAD"
+                } @forebears;
+        if ($want) {
+            return map { $$_ = ref($self)."::EVERY::".$wanted_method;
+                    ($_, [$self->$_(@_[1..$#_])]);
+                } @every;
+        }
+        elsif (defined $want) {
+            return { map { $$_ = ref($self)."::EVERY::".$wanted_method;
+                    ($_, scalar($self->$_(@_[1..$#_])))
+                    } @every
+                };
+        }
+        else {
+            for (@every) {
+                $$_ = ref($self)."::EVERY::".$wanted_method;
+                $self->$_(@_[1..$#_]);
+            }
+            return;
+        }
+    };
 }
 
+package EVERY::LAST;   @ISA = 'EVERY';   EVERY::ELSEWHERE::buildAUTOLOAD();
+package EVERY;         @ISA = 'NEXT';    EVERY::ELSEWHERE::buildAUTOLOAD();
 
 1;