1 files changed, 45 insertions, 0 deletions
diff --git a/lib/Moose/Exception/RequiredMethodsImportedByClass.pm b/lib/Moose/Exception/RequiredMethodsImportedByClass.pm
new file mode 100644
index 0000000..262883e
--- /dev/null
+++ b/lib/Moose/Exception/RequiredMethodsImportedByClass.pm
@@ -0,0 +1,45 @@
+package Moose::Exception::RequiredMethodsImportedByClass;
+our $VERSION = '2.1405';
+
+use Moose;
+extends 'Moose::Exception';
+with 'Moose::Exception::Role::Class', 'Moose::Exception::Role::Role';
+
+has 'missing_methods' => (
+    traits   => ['Array'],
+    is       => 'ro',
+    isa      => 'ArrayRef[Moose::Meta::Role::Method::Required]',
+    handles  => { method_count    => 'count',
+                  get_method_at   => 'get',
+                  get_all_methods => 'elements',
+    },
+    required => 1
+);
+
+has 'imported_method' => (
+    is       => 'ro',
+    isa      => 'Moose::Meta::Role::Method::Required',
+    required => 1
+);
+
+sub _build_message {
+    my $self = shift;
+
+    my $noun = $self->method_count == 1 ? 'method' : 'methods';
+    my $list = Moose::Util::english_list( map { q{'} . $_ . q{'} } $self->get_all_methods );
+
+    my ($class, $role, $method) = ($self->class_name,
+                                   $self->role_name,
+                                   $self->imported_method);
+
+    my ($class_quoted, $role_quoted) = ("'".$class."'","'".$role."'");
+
+    "$role_quoted requires the $noun $list "
+        . "to be implemented by $class_quoted. "
+        . "If you imported functions intending to use them as "
+        . "methods, you need to explicitly mark them as such, via "
+        . "$class->meta->add_method($method"
+        . " => \\&$method)";
+}
+
+1;