--- /dev/null
+#!/usr/bin/env perl
+package Mouse::TypeRegistry;
+use strict;
+use warnings;
+
+sub optimized_constraints {
+ return {
+ Any => sub { 1 },
+ Item => sub { 1 },
+ Bool => sub {
+ !defined($_) || $_ eq "" || "$_" eq '1' || "$_" eq '0'
+ },
+ Undef => sub { 1 },
+ Defined => sub { 1 },
+ Value => sub { 1 },
+ Num => sub { 1 },
+ Int => sub { 1 },
+ Str => sub { 1 },
+ ClassName => sub { 1 },
+ Ref => sub { 1 },
+ ScalarRef => sub { 1 },
+ ArrayRef => sub { 1 },
+ HashRef => sub { 1 },
+ CodeRef => sub { 1 },
+ RegexpRef => sub { 1 },
+ GlobRef => sub { 1 },
+ FileHandle => sub { 1 },
+ Object => sub { 1 },
+ };
+}
+
+1;
+