X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FAction.pm;h=36f4793dec20223cf6430618ce94cca1d65697c1;hb=6a881c3e8e4aa49708e6f10de12241de75ec8f7c;hp=07f2f32dbf01f7502027e13ca30ae34d08384188;hpb=43b44b3a2ee087f00af6579d3b6ac63f8f645412;p=catagits%2FCatalyst-Runtime.git

diff --git a/lib/Catalyst/Action.pm b/lib/Catalyst/Action.pm
index 07f2f32..36f4793 100644
--- a/lib/Catalyst/Action.pm
+++ b/lib/Catalyst/Action.pm
@@ -52,9 +52,7 @@ has number_of_args => (
     if( ! exists $self->attributes->{Args} ) {
       # When 'Args' does not exist, that means we want 'any number of args'.
       return undef;
-    } elsif(
-      !defined($self->attributes->{Args}[0]) || 
-      $self->attributes->{Args}[0] eq '' ) {
+    } elsif(!defined($self->attributes->{Args}[0])) {
       # When its 'Args' that internal cue for 'unlimited'
       return undef;
     } elsif(
@@ -70,6 +68,10 @@ has number_of_args => (
   }
 
 sub normalized_arg_number {
+  return $_[0]->number_of_args;
+}
+
+sub comparable_arg_number {
   return defined($_[0]->number_of_args) ? $_[0]->number_of_args : ~0;
 }
 
@@ -107,7 +109,7 @@ has number_of_args_constraints => (
         return 1; # Its a normal 1 arg type constraint.
       }
     } else {
-      # We need to loop thru and error on ref types.  We don't allow a ref type
+      # We need to loop through and error on ref types.  We don't allow a ref type
       # in the middle.
       my $total = 0;
       foreach my $tc( @{$self->args_constraints}) {
@@ -132,6 +134,7 @@ has args_constraints => (
   handles => {
     has_args_constraints => 'count',
     args_constraint_count => 'count',
+    all_args_constraints => 'elements',
   });
 
   sub _build_args_constraints {
@@ -140,7 +143,6 @@ has args_constraints => (
 
     return [] unless scalar(@arg_protos);
     return [] unless defined($arg_protos[0]);
-    return [] if ($arg_protos[0] eq '' && scalar(@arg_protos) == 1);
 
     # If there is only one arg and it looks like a number
     # we assume its 'classic' and the number is the number of
@@ -193,7 +195,7 @@ has number_of_captures_constraints => (
         return 1; # Its a normal 1 arg type constraint.
       }
     } else {
-      # We need to loop thru and error on ref types.  We don't allow a ref type
+      # We need to loop through and error on ref types.  We don't allow a ref type
       # in the middle.
       my $total = 0;
       foreach my $tc( @{$self->captures_constraints}) {
@@ -218,6 +220,7 @@ has captures_constraints => (
   handles => {
     has_captures_constraints => 'count',
     captures_constraints_count => 'count',
+    all_captures_constraints => 'elements',
   });
 
   sub _build_captures_constraints {
@@ -258,7 +261,7 @@ sub resolve_type_constraint {
     my $tc =  Type::Registry->new->foreign_lookup($name);
     return defined $tc ? $tc : die "'$name' not a full namespace type constraint in ${\$self->private_path}";
   }
-  
+
   my @tc = grep { defined $_ } (eval("package ${\$self->class}; $name"));
 
   unless(scalar @tc) {
@@ -269,7 +272,7 @@ sub resolve_type_constraint {
     my @supers = $self->class->can('meta') ? map { $_->meta } $self->class->meta->superclasses : ();
     my @roles = $self->class->can('meta') ? $self->class->meta->calculate_all_roles : ();
 
-    # So look thru all the super and roles in order and return the
+    # So look through all the super and roles in order and return the
     # first type constraint found. We should probably find all matching
     # type constraints and try to do some sort of resolution.
 
@@ -286,10 +289,10 @@ sub resolve_type_constraint {
           } else {
             return;
           }
-        } 
+        }
       }
     }
-    
+
     my $classes = join(',', $self->class, @roles, @supers);
     die "'$name' not a type constraint in '${\$self->private_path}', Looked in: $classes";
   }
@@ -384,8 +387,8 @@ sub match_args {
         # Optimization since Tuple[Int, Int] would fail on 3,4,5 anyway, but this
         # way we can avoid calling the constraint when the arg length is incorrect.
         if(
-          $self->normalized_arg_number == ~0 ||
-          scalar( @args ) == $self->normalized_arg_number
+          $self->comparable_arg_number == ~0 ||
+          scalar( @args ) == $self->comparable_arg_number
         ) {
           return $self->args_constraints->[0]->check($args);
         } else {
@@ -400,7 +403,7 @@ sub match_args {
       } else {
         # Because of the way chaining works, we can expect args that are totally not
         # what you'd expect length wise.  When they don't match length, thats a fail
-        return 0 unless scalar( @args ) == $self->normalized_arg_number;
+        return 0 unless scalar( @args ) == $self->comparable_arg_number;
 
         for my $i(0..$#args) {
           $self->args_constraints->[$i]->check($args[$i]) || return 0;
@@ -409,10 +412,10 @@ sub match_args {
       }
     } else {
       # If infinite args with no constraints, we always match
-      return 1 if $self->normalized_arg_number == ~0;
+      return 1 if $self->comparable_arg_number == ~0;
 
       # Otherwise, we just need to match the number of args.
-      return scalar( @args ) == $self->normalized_arg_number;
+      return scalar( @args ) == $self->comparable_arg_number;
     }
 }
 
@@ -454,7 +457,12 @@ sub match_captures_constraints {
 
 sub compare {
     my ($a1, $a2) = @_;
-    return $a1->normalized_arg_number <=> $a2->normalized_arg_number;
+    return $a1->comparable_arg_number <=> $a2->comparable_arg_number;
+}
+
+sub equals {
+  my ($self, $target) = @_;
+  return $self->private_path eq $target->private_path ? $self : 0;
 }
 
 sub scheme {
@@ -467,7 +475,7 @@ sub list_extra_info {
     Args => $self->normalized_arg_number,
     CaptureArgs => $self->number_of_captures,
   }
-} 
+}
 
 __PACKAGE__->meta->make_immutable;
 
@@ -526,13 +534,19 @@ Does the Args match or not?
 
 =head2 resolve_type_constraint
 
-Trys to find a type constraint if you have on on a type constrained method.
+Tries to find a type constraint if you have on on a type constrained method.
 
 =head2 compare
 
 Compares 2 actions based on the value of the C<Args> attribute, with no C<Args>
 having the highest precedence.
 
+=head2 equals
+
+    if( $action->equal($other_action) ) { ... }
+
+Returns true if the two actions are equal.
+
 =head2 namespace
 
 Returns the private namespace this action lives in.
@@ -557,6 +571,12 @@ take any arguments and undef if it will take any number of arguments.
 
 =head2 normalized_arg_number
 
+The number of arguments (starting with zero) that the current action defines, or
+undefined if there is not defined number of args (which is later treated as, "
+as many arguments as you like").
+
+=head2 comparable_arg_number
+
 For the purposes of comparison we normalize 'number_of_args' so that if it is
 undef we mean ~0 (as many args are we can think of).