bendns' repos / ttools
[no description]
Diffstat
-rw-r--r--src/lib.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
index d915d21..5cb70e9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -83,6 +83,9 @@ pub trait Pick<const N: usize>: Tupl {
fn depict(self) -> (Self::L, Self::At, Self::R);
}
/// Main tuple trait.
+#[diagnostic::on_unimplemented(
+ label = "this is not a tuple, or it is too big a tuple (>26 elements)"
+)]
pub trait Tupl: core::marker::Tuple {
/// Refer to listmonster.
type Head;