Deprecate hash-triggers

[gitmo/Mouse.git] / lib / Mouse / Meta / Attribute.pm

diff --git a/lib/Mouse/Meta/Attribute.pm b/lib/Mouse/Meta/Attribute.pm
index 1c46633..230efb5 100644 (file)
--- a/lib/Mouse/Meta/Attribute.pm
+++ b/lib/Mouse/Meta/Attribute.pm
@@ -4,7 +4,7 @@ use strict;
 use warnings;
 
 use Carp 'confess';
-use Scalar::Util 'blessed';
+use Scalar::Util qw/blessed weaken/;
 
 sub new {
     my $class = shift;
@@ -20,22 +20,22 @@ sub new {
     bless \%args, $class;
 }
 
-sub name              { $_[0]->{name}            }
-sub class             { $_[0]->{class}           }
-sub _is_metadata      { $_[0]->{is}              }
-sub is_required       { $_[0]->{required}        }
-sub default           { $_[0]->{default}         }
-sub is_lazy           { $_[0]->{lazy}            }
-sub is_lazy_build     { $_[0]->{lazy_build}      }
-sub predicate         { $_[0]->{predicate}       }
-sub clearer           { $_[0]->{clearer}         }
-sub handles           { $_[0]->{handles}         }
-sub is_weak_ref       { $_[0]->{weak_ref}        }
-sub init_arg          { $_[0]->{init_arg}        }
-sub type_constraint   { $_[0]->{type_constraint} }
-sub trigger           { $_[0]->{trigger}         }
-sub builder           { $_[0]->{builder}         }
-sub should_auto_deref { $_[0]->{auto_deref}      }
+sub name              { $_[0]->{name}             }
+sub associated_class  { $_[0]->{associated_class} }
+sub _is_metadata      { $_[0]->{is}               }
+sub is_required       { $_[0]->{required}         }
+sub default           { $_[0]->{default}          }
+sub is_lazy           { $_[0]->{lazy}             }
+sub is_lazy_build     { $_[0]->{lazy_build}       }
+sub predicate         { $_[0]->{predicate}        }
+sub clearer           { $_[0]->{clearer}          }
+sub handles           { $_[0]->{handles}          }
+sub is_weak_ref       { $_[0]->{weak_ref}         }
+sub init_arg          { $_[0]->{init_arg}         }
+sub type_constraint   { $_[0]->{type_constraint}  }
+sub trigger           { $_[0]->{trigger}          }
+sub builder           { $_[0]->{builder}          }
+sub should_auto_deref { $_[0]->{auto_deref}       }
 
 sub has_default         { exists $_[0]->{default}         }
 sub has_predicate       { exists $_[0]->{predicate}       }
@@ -76,17 +76,28 @@ sub generate_accessor {
             $accessor .= '$before->($self, $_, $attribute);';
         }
 
-        if ($constraint) {
-            $accessor .= 'do {
-                my $display = defined($_) ? overload::StrVal($_) : "undef";
-                Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display") unless $constraint->();
-            };'
+        if ($around) {
+            $accessor .= '$around->(sub {
+                my $self = shift;
+                $_ = $_[0];
+            ';
         }
 
-        $accessor .= '$self->{$key} = $_;';
+            if ($constraint) {
+                $accessor .= 'unless ($constraint->()) {
+                        my $display = defined($_) ? overload::StrVal($_) : "undef";
+                        Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display");
+                }'
+            }
 
-        if ($attribute->is_weak_ref) {
-            $accessor .= 'Scalar::Util::weaken($self->{$key}) if ref($self->{$key});';
+            $accessor .= '$self->{$key} = $_;';
+
+            if ($attribute->is_weak_ref) {
+                $accessor .= 'Scalar::Util::weaken($self->{$key}) if ref($self->{$key});';
+            }
+
+        if ($around) {
+            $accessor .= '}, $self, $_, $attribute);';
         }
 
         if ($after) {
@@ -173,7 +184,7 @@ sub create {
     my ($self, $class, $name, %args) = @_;
 
     $args{name} = $name;
-    $args{class} = $class;
+    $args{associated_class} = $class;
 
     %args = $self->canonicalize_args($name, %args);
     $self->validate_args($name, \%args);
@@ -182,17 +193,15 @@ sub create {
         if exists $args{isa};
 
     my $attribute = $self->new(%args);
-    $attribute->_create_args(\%args);
 
-    my $meta = $class->meta;
+    $attribute->_create_args(\%args);
 
-    $meta->add_attribute($attribute);
+    $class->add_attribute($attribute);
 
     # install an accessor
     if ($attribute->_is_metadata eq 'rw' || $attribute->_is_metadata eq 'ro') {
         my $accessor = $attribute->generate_accessor;
-        no strict 'refs';
-        *{ $class . '::' . $name } = $accessor;
+        $class->add_method($name => $accessor);
     }
 
     for my $method (qw/predicate clearer/) {
@@ -200,16 +209,14 @@ sub create {
         if ($attribute->$predicate) {
             my $generator = "generate_$method";
             my $coderef = $attribute->$generator;
-            no strict 'refs';
-            *{ $class . '::' . $attribute->$method } = $coderef;
+            $class->add_method($attribute->$method => $coderef);
         }
     }
 
     if ($attribute->has_handles) {
         my $method_map = $attribute->generate_handles;
         for my $method_name (keys %$method_map) {
-            no strict 'refs';
-            *{ $class . '::' . $method_name } = $method_map->{$method_name};
+            $class->add_method($method_name => $method_map->{$method_name});
         }
     }
 
@@ -256,10 +263,10 @@ sub validate_args {
         if ref($args->{default})
         && ref($args->{default}) ne 'CODE';
 
-    confess "You cannot auto-dereference without specifying a type constraint on attribute $name"
+    confess "You cannot auto-dereference without specifying a type constraint on attribute ($name)"
         if $args->{auto_deref} && !exists($args->{isa});
 
-    confess "You cannot auto-dereference anything other than a ArrayRef or HashRef on attribute $name"
+    confess "You cannot auto-dereference anything other than a ArrayRef or HashRef on attribute ($name)"
         if $args->{auto_deref}
         && $args->{isa} ne 'ArrayRef'
         && $args->{isa} ne 'HashRef';
@@ -270,10 +277,12 @@ sub validate_args {
                 after => $args->{trigger},
             };
         }
+        elsif (ref($args->{trigger}) eq 'HASH') {
+            Carp::carp "HASH-based form of trigger is deprecated. Please switch back to using the coderef form of trigger.";
+        }
 
-        confess "Trigger must be a CODE or HASH ref on attribute ($name)"
-            if $args->{trigger}
-            && ref($args->{trigger}) ne 'HASH';
+        confess "Trigger must be a CODE ref on attribute ($name)"
+            if ref($args->{trigger}) ne 'HASH';
     }
 
     return 1;
@@ -335,7 +344,7 @@ sub get_parent_args {
     my $class = shift;
     my $name  = shift;
 
-    for my $super ($class->meta->linearized_isa) {
+    for my $super ($class->linearized_isa) {
         my $super_attr = $super->can("meta") && $super->meta->get_attribute($name)
             or next;
         return %{ $super_attr->_create_args };
@@ -365,7 +374,7 @@ installed. Some error checking is done.
 
 =head2 name -> AttributeName
 
-=head2 class -> OwnerClass
+=head2 associated_class -> OwnerClass
 
 =head2 is_required -> Bool