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rustc: future-proof error reporting for polymorphic constants in types. #54346

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6 changes: 5 additions & 1 deletion src/librustc/traits/error_reporting.rs
Original file line number Diff line number Diff line change
Expand Up @@ -846,7 +846,11 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
"could not evaluate constant expression",
) {
Some(err) => err,
None => return,
None => {
self.tcx.sess.delay_span_bug(span,
&format!("constant in type had an ignored error: {:?}", err));
return;
}
}
}

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