X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Runtime.git;a=blobdiff_plain;f=lib%2FCatalyst%2FAction.pm;h=ea3e3e49e820122e5fa612ef6e5657cb54de067e;hp=32d9b99f9096f19f099771762f64ea8d8764b975;hb=161710a39409d2afd256463471b8014a1c69adf4;hpb=ec4d72594fb7a701c2f36e85ecf9a680ca1abba2

diff --git a/lib/Catalyst/Action.pm b/lib/Catalyst/Action.pm
index 32d9b99..ea3e3e4 100644
--- a/lib/Catalyst/Action.pm
+++ b/lib/Catalyst/Action.pm
@@ -20,7 +20,7 @@ L<Catalyst::Controller> subclasses.
 =cut
 
 use Moose;
-use Scalar::Util 'looks_like_number';
+use Scalar::Util 'looks_like_number', 'blessed';
 use Moose::Util::TypeConstraints ();
 with 'MooseX::Emulate::Class::Accessor::Fast';
 use namespace::clean -except => 'meta';
@@ -52,7 +52,9 @@ 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])) {
+    } elsif(
+      !defined($self->attributes->{Args}[0]) || 
+      $self->attributes->{Args}[0] eq '' ) {
       # When its 'Args' that internal cue for 'unlimited'
       return undef;
     } elsif(
@@ -105,7 +107,7 @@ 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}) {
@@ -138,6 +140,7 @@ 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
@@ -190,7 +193,7 @@ 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}) {
@@ -243,8 +246,55 @@ has captures_constraints => (
 
 sub resolve_type_constraint {
   my ($self, $name) = @_;
-  my @tc = eval "package ${\$self->class}; $name" or die "'$name' not a type constraint in ${\$self->private_path}";
-  if($tc[0]) {
+
+  if(defined($name) && blessed($name) && $name->can('check')) {
+    # Its already a TC, good to go.
+    return $name;
+  }
+
+  # This is broken for when there is more than one constraint
+  if($name=~m/::/) {
+    eval "use Type::Registry; 1" || die "Can't resolve type constraint $name without installing Type::Tiny";
+    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) {
+    # ok... so its not defined in the package.  we need to look at all the roles
+    # and superclasses, look for attributes and figure it out.
+    # Superclasses take precedence;
+
+    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 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.
+
+    foreach my $parent (@roles, @supers) {
+      if(my $m = $parent->get_method($self->name)) {
+        if($m->can('attributes')) {
+          my ($key, $value) = map { $_ =~ /^(.*?)(?:\(\s*(.+?)\s*\))?$/ }
+            grep { $_=~/^Args\(/ or $_=~/^CaptureArgs\(/ }
+              @{$m->attributes};
+          next unless $value eq $name;
+          my @tc = eval "package ${\$parent->name}; $name";
+          if(scalar(@tc)) {
+            return map { ref($_) ? $_ : Moose::Util::TypeConstraints::find_or_parse_type_constraint($_) } @tc;
+          } else {
+            return;
+          }
+        } 
+      }
+    }
+    
+    my $classes = join(',', $self->class, @roles, @supers);
+    die "'$name' not a type constraint in '${\$self->private_path}', Looked in: $classes";
+  }
+
+  if(scalar(@tc)) {
     return map { ref($_) ? $_ : Moose::Util::TypeConstraints::find_or_parse_type_constraint($_) } @tc;
   } else {
     return;
@@ -476,7 +526,7 @@ 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