+/// A workaround for "good path" ICEs when formatting types in disables lints.
+///
+/// Delays formatting until `.into(): DiagnosticMessage` is used.
+pub struct DelayDm<F>(pub F);
+
+impl<F: FnOnce() -> String> From<DelayDm<F>> for DiagnosticMessage {
+ fn from(DelayDm(f): DelayDm<F>) -> Self {
+ DiagnosticMessage::from(f())
+ }
+}
+