X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMooseX%2FAttributeHelpers%2FMethodProvider%2FArray.pm;h=2c4e27bbee6891cf4ac59f6c7c0af24a496889dd;hb=2e74144c8801485e5c33fdcdcbee9f7d882c1a3a;hp=d953c97c97cdd1bef555cc09ea3e9f443653a0ee;hpb=b9dc8e2f66cb0c06a8d52aaa3b4734237b749b20;p=gitmo%2FMooseX-AttributeHelpers.git

diff --git a/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm b/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm
index d953c97..2c4e27b 100644
--- a/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm
+++ b/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm
@@ -1,106 +1,196 @@
 package MooseX::AttributeHelpers::MethodProvider::Array;
 use Moose::Role;
 
+our $VERSION   = '0.23';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
+
+with 'MooseX::AttributeHelpers::MethodProvider::List';
+
 sub push : method {
-    my ($attr) = @_;
-    if ($attr->has_container_type) {
-        my $container_type_constraint = $attr->container_type_constraint;
+    my ($attr, $reader, $writer) = @_;
+    
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
         return sub { 
             my $instance = CORE::shift;
             $container_type_constraint->check($_) 
-                || confess "Value " . ($_||'undef') . " did not pass container type constraint"
+                || confess "Value " . ($_||'undef') . " did not pass container type constraint '$container_type_constraint'"
                     foreach @_;
-            CORE::push @{$attr->get_value($instance)} => @_; 
+            CORE::push @{$reader->($instance)} => @_; 
         };                    
     }
     else {
         return sub { 
             my $instance = CORE::shift;
-            CORE::push @{$attr->get_value($instance)} => @_; 
+            CORE::push @{$reader->($instance)} => @_; 
         };
     }
 }
 
 sub pop : method {
-    my ($attr) = @_;
+    my ($attr, $reader, $writer) = @_;
     return sub { 
-        CORE::pop @{$attr->get_value($_[0])} 
+        CORE::pop @{$reader->($_[0])} 
     };
 }
 
 sub unshift : method {
-    my ($attr) = @_;
-    if ($attr->has_container_type) {
-        my $container_type_constraint = $attr->container_type_constraint;
+    my ($attr, $reader, $writer) = @_;
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
         return sub { 
             my $instance = CORE::shift;
             $container_type_constraint->check($_) 
-                || confess "Value " . ($_||'undef') . " did not pass container type constraint"
+                || confess "Value " . ($_||'undef') . " did not pass container type constraint '$container_type_constraint'"
                     foreach @_;
-            CORE::unshift @{$attr->get_value($instance)} => @_; 
+            CORE::unshift @{$reader->($instance)} => @_; 
         };                    
     }
     else {                
         return sub { 
             my $instance = CORE::shift;
-            CORE::unshift @{$attr->get_value($instance)} => @_; 
+            CORE::unshift @{$reader->($instance)} => @_; 
         };
     }
 }
 
 sub shift : method {
-    my ($attr) = @_;
+    my ($attr, $reader, $writer) = @_;
     return sub { 
-        CORE::shift @{$attr->get_value($_[0])} 
+        CORE::shift @{$reader->($_[0])} 
     };
 }
    
 sub get : method {
-    my ($attr) = @_;
+    my ($attr, $reader, $writer) = @_;
     return sub { 
-        $attr->get_value($_[0])->[$_[1]] 
+        $reader->($_[0])->[$_[1]] 
     };
 }
 
 sub set : method {
-    my ($attr) = @_;
-    if ($attr->has_container_type) {
-        my $container_type_constraint = $attr->container_type_constraint;
+    my ($attr, $reader, $writer) = @_;
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
         return sub { 
             ($container_type_constraint->check($_[2])) 
-                || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint";
-            $attr->get_value($_[0])->[$_[1]] = $_[2]
+                || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint '$container_type_constraint'";
+            $reader->($_[0])->[$_[1]] = $_[2]
         };                    
     }
     else {                
         return sub { 
-            $attr->get_value($_[0])->[$_[1]] = $_[2] 
+            $reader->($_[0])->[$_[1]] = $_[2] 
         };
     }
 }
- 
-sub count : method {
-    my ($attr) = @_;
-    return sub { 
-        scalar @{$attr->get_value($_[0])} 
-    };        
+
+sub accessor : method {
+    my ($attr, $reader, $writer) = @_;
+
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
+        return sub {
+            my $self = shift;
+
+            if (@_ == 1) { # reader
+                return $reader->($self)->[$_[0]];
+            }
+            elsif (@_ == 2) { # writer
+                ($container_type_constraint->check($_[1]))
+                    || confess "Value " . ($_[1]||'undef') . " did not pass container type constraint '$container_type_constraint'";
+                $reader->($self)->[$_[0]] = $_[1];
+            }
+            else {
+                confess "One or two arguments expected, not " . @_;
+            }
+        };
+    }
+    else {
+        return sub {
+            my $self = shift;
+
+            if (@_ == 1) { # reader
+                return $reader->($self)->[$_[0]];
+            }
+            elsif (@_ == 2) { # writer
+                $reader->($self)->[$_[0]] = $_[1];
+            }
+            else {
+                confess "One or two arguments expected, not " . @_;
+            }
+        };
+    }
 }
 
-sub empty : method {
-    my ($attr) = @_;
+sub clear : method {
+    my ($attr, $reader, $writer) = @_;
     return sub { 
-        scalar @{$attr->get_value($_[0])} ? 1 : 0 
-    };        
+        @{$reader->($_[0])} = ()
+    };
+}
+
+sub delete : method {
+    my ($attr, $reader, $writer) = @_;
+    return sub {
+        CORE::splice @{$reader->($_[0])}, $_[1], 1;
+    }
+}
+
+sub insert : method {
+    my ($attr, $reader, $writer) = @_;
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
+        return sub { 
+            ($container_type_constraint->check($_[2])) 
+                || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint '$container_type_constraint'";
+            CORE::splice @{$reader->($_[0])}, $_[1], 0, $_[2];
+        };                    
+    }
+    else {                
+        return sub { 
+            CORE::splice @{$reader->($_[0])}, $_[1], 0, $_[2];
+        };
+    }    
+}
+
+sub splice : method {
+    my ($attr, $reader, $writer) = @_;
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
+        return sub { 
+            my ( $self, $i, $j, @elems ) = @_;
+            ($container_type_constraint->check($_)) 
+                || confess "Value " . (defined($_) ? $_ : 'undef') . " did not pass container type constraint '$container_type_constraint'" for @elems;
+            CORE::splice @{$reader->($self)}, $i, $j, @elems;
+        };                    
+    }
+    else {                
+        return sub {
+            my ( $self, $i, $j, @elems ) = @_;
+            CORE::splice @{$reader->($self)}, $i, $j, @elems;
+        };
+    }    
 }
 
-sub find : method {
-    my ($attr) = @_;
+sub sort_in_place : method {
+    my ($attr, $reader, $writer) = @_;
     return sub {
         my ($instance, $predicate) = @_;
-        foreach my $val (@{$attr->get_value($instance)}) {
-            return $val if $predicate->($val);
+
+        die "Argument must be a code reference"
+            if $predicate && ref $predicate ne 'CODE';
+
+        my @sorted;
+        if ($predicate) {
+            @sorted = CORE::sort { $predicate->($a, $b) } @{$reader->($instance)};
+        }
+        else {
+            @sorted = CORE::sort @{$reader->($instance)};
         }
-        return;
+
+        $writer->($instance, \@sorted);
     };
 }
 
@@ -110,4 +200,82 @@ __END__
 
 =pod
 
+=head1 NAME
+
+MooseX::AttributeHelpers::MethodProvider::Array
+
+=head1 DESCRIPTION
+
+This is a role which provides the method generators for 
+L<MooseX::AttributeHelpers::Collection::Array>.
+
+=head1 METHODS
+
+=over 4
+
+=item B<meta>
+
+=back
+
+=head1 PROVIDED METHODS
+
+This module also consumes the B<List> method providers, to 
+see those provied methods, refer to that documentation.
+
+=over 4
+
+=item B<get>
+
+=item B<pop>
+
+=item B<push>
+
+=item B<set>
+
+=item B<shift>
+
+=item B<unshift>
+
+=item B<clear>
+
+=item B<delete>
+
+=item B<insert>
+
+=item B<splice>
+
+=item B<sort_in_place>
+
+Sorts the array I<in place>, modifying the value of the attribute.
+
+You can provide an optional subroutine reference to sort with (as you
+can with the core C<sort> function). However, instead of using C<$a>
+and C<$b>, you will need to use C<$_[0]> and C<$_[1]> instead.
+
+=item B<accessor>
+
+If passed one argument, returns the value of the requested element.
+If passed two arguments, sets the value of the requested element.
+
+=back
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no 
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2007-2009 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
 =cut