Moose-2.1405HEADMoose-2.1405master

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/Moose/Exception/RoleExclusionConflict.pm b/lib/Moose/Exception/RoleExclusionConflict.pm
new file mode 100644
index 0000000..210ec90
--- /dev/null
+++ b/lib/Moose/Exception/RoleExclusionConflict.pm
@@ -0,0 +1,26 @@
+package Moose::Exception::RoleExclusionConflict;
+our $VERSION = '2.1405';
+
+use Moose;
+extends 'Moose::Exception';
+with 'Moose::Exception::Role::Role';
+
+has 'roles' => (
+    is         => 'ro',
+    isa        => 'ArrayRef',
+    required   => 1,
+);
+
+sub _build_message {
+    my $self = shift;
+
+    my @roles_array = @{$self->roles};
+    my $role_noun = "Role".( @roles_array == 1 ? '' : 's');
+    my $all_roles = join(', ', @roles_array);
+    my $verb = "exclude".( @roles_array == 1 ? 's' : '' );
+    my $role_name = $self->role_name;
+
+    return "Conflict detected: $role_noun $all_roles $verb role '$role_name'";
+}
+
+1;