X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FTypeConstraint.pm;h=155c48ce9fe132c6ba845d77e8fc354df9a538f4;hp=a35b4d0bb222857972d4f4fb0cac1f13c56210dd;hb=f790c46b83718b0665e24380b0df0c387925ea27;hpb=065f79e7cd03765f26c6ea276aaf9b3c5897886a

diff --git a/lib/Mouse/Meta/TypeConstraint.pm b/lib/Mouse/Meta/TypeConstraint.pm
index a35b4d0..155c48c 100644
--- a/lib/Mouse/Meta/TypeConstraint.pm
+++ b/lib/Mouse/Meta/TypeConstraint.pm
@@ -2,13 +2,21 @@ package Mouse::Meta::TypeConstraint;
 use Mouse::Util qw(:meta); # enables strict and warnings
 
 use overload
+    'bool'   => sub { 1 },             # always true
+
     '""'     => sub { $_[0]->name },   # stringify to tc name
+
+    '|'      => sub {                  # or-combination
+        require Mouse::Util::TypeConstraints;
+        return Mouse::Util::TypeConstraints::find_or_parse_type_constraint(
+            "$_[0] | $_[1]",
+        );
+    },
+
     fallback => 1;
 
 use Carp         ();
 
-my $null_check = sub { 1 };
-
 sub new {
     my($class, %args) = @_;
 
@@ -80,61 +88,6 @@ sub create_child_type{
    );
 }
 
-
-sub compile_type_constraint{
-    my($self) = @_;
-
-    # add parents first
-    my @checks;
-    for(my $parent = $self->parent; defined $parent; $parent = $parent->parent){
-         if($parent->{hand_optimized_type_constraint}){
-            unshift @checks, $parent->{hand_optimized_type_constraint};
-            last; # a hand optimized constraint must include all the parents
-        }
-        elsif($parent->{constraint}){
-            unshift @checks, $parent->{constraint};
-        }
-    }
-
-    # then add child
-    if($self->{constraint}){
-        push @checks, $self->{constraint};
-    }
-
-    if($self->{type_constraints}){ # Union
-        my @types = map{ $_->_compiled_type_constraint } @{ $self->{type_constraints} };
-        push @checks, sub{
-            foreach my $c(@types){
-                return 1 if $c->($_[0]);
-            }
-            return 0;
-        };
-    }
-
-    if(@checks == 0){
-        $self->{compiled_type_constraint} = $null_check;
-    }
-    elsif(@checks == 1){
-        my $c = $checks[0];
-        $self->{compiled_type_constraint} = sub{
-            my(@args) = @_;
-            local $_ = $args[0];
-            return $c->(@args);
-        };
-    }
-    else{
-        $self->{compiled_type_constraint} =  sub{
-            my(@args) = @_;
-            local $_ = $args[0];
-            foreach my $c(@checks){
-                return undef if !$c->(@args);
-            }
-            return 1;
-        };
-    }
-    return;
-}
-
 sub _add_type_coercions{
     my $self = shift;
 
@@ -224,6 +177,29 @@ sub is_a_type_of{
     return 0;
 }
 
+# See also Moose::Meta::TypeConstraint::Parameterizable
+sub parameterize{
+    my($self, $param, $name) = @_;
+
+    if(!ref $param){
+        require Mouse::Util::TypeConstraints;
+        $param = Mouse::Util::TypeConstraints::find_or_create_isa_type_constraint($param);
+    }
+
+    $name ||= sprintf '%s[%s]', $self->name, $param->name;
+
+    my $generator = $self->{constraint_generator}
+        || Carp::confess("The $name constraint cannot be used, because $param doesn't subtype from a parameterizable type");
+
+    return Mouse::Meta::TypeConstraint->new(
+        name        => $name,
+        parent      => $self,
+        parameter   => $param,
+        constraint  => $generator->($param), # must be 'constraint', not 'optimized'
+
+        type        => 'Parameterized',
+    );
+}
 
 1;
 __END__
@@ -234,7 +210,7 @@ Mouse::Meta::TypeConstraint - The Mouse Type Constraint metaclass
 
 =head1 VERSION
 
-This document describes Mouse version 0.40_02
+This document describes Mouse version 0.40_03
 
 =head1 DESCRIPTION