1 files changed, 99 insertions, 0 deletions
diff --git a/benchmarks/immutable.pl b/benchmarks/immutable.pl
new file mode 100644
index 0000000..0263404
--- /dev/null
+++ b/benchmarks/immutable.pl
@@ -0,0 +1,99 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Benchmark qw[cmpthese];
+
+use Moose::Util::TypeConstraints;
+
+{
+    package Foo;
+    use Moose;
+    Foo->meta->make_immutable(debug => 0);
+}
+
+coerce 'Foo'
+    => from 'ArrayRef'
+    => via { Foo->new(@{$_}) };
+
+{
+    package Foo::Normal;
+    use Moose;
+
+    has 'default'         => (is => 'rw', default => 10);
+    has 'default_sub'     => (is => 'rw', default => sub { [] });
+    has 'lazy'            => (is => 'rw', default => 10, lazy => 1);
+    has 'required'        => (is => 'rw', required => 1);
+    has 'weak_ref'        => (is => 'rw', weak_ref => 1);
+    has 'type_constraint' => (is => 'rw', isa => 'Foo');
+    has 'coercion'        => (is => 'rw', isa => 'Foo', coerce => 1);
+
+    package Bar::Normal;
+    use Moose;
+
+    extends 'Foo::Normal';
+
+    has 'default_w_type_constraint' => (
+        is      => 'rw',
+        isa     => 'Int',
+        default => 10,
+    );
+}
+
+{
+    package Foo::Immutable;
+    use Moose;
+
+    has 'default'         => (is => 'rw', default => 10);
+    has 'default_sub'     => (is => 'rw', default => sub { [] });
+    has 'lazy'            => (is => 'rw', default => 10, lazy => 1);
+    has 'required'        => (is => 'rw', required => 1);
+    has 'weak_ref'        => (is => 'rw', weak_ref => 1);
+    has 'type_constraint' => (is => 'rw', isa => 'Foo');
+    has 'coercion'        => (is => 'rw', isa => 'Foo', coerce => 1);
+
+    #sub BUILD {
+    #    # ...
+    #}
+
+    Foo::Immutable->meta->make_immutable(debug => 0);
+
+    package Bar::Immutable;
+    use Moose;
+
+    extends 'Foo::Immutable';
+
+    has 'default_w_type_constraint' => (
+        is      => 'rw',
+        isa     => 'Int',
+        default => 10,
+    );
+
+    Bar::Immutable->meta->make_immutable(debug => 0);
+}
+
+#__END__
+
+my $foo = Foo->new;
+
+cmpthese(10_000,
+    {
+        'normal' => sub {
+            Foo::Normal->new(
+                required        => 'BAR',
+                type_constraint => $foo,
+                coercion        => [],
+                weak_ref        => {},
+            );
+        },
+        'immutable' => sub {
+            Foo::Immutable->new(
+                required        => 'BAR',
+                type_constraint => $foo,
+                coercion        => [],
+                weak_ref        => {},
+            );
+        },
+    }
+);
+\ No newline at end of file