let c_ty = self.infcx.canonicalize_query(&self.param_env.and(ty), &mut orig_values);
let span = self.cause.span;
debug!("c_ty = {:?}", c_ty);
- match &gcx.dropck_outlives(c_ty) {
- Ok(result) if result.is_proven() => {
+ if let Ok(result) = &gcx.dropck_outlives(c_ty) {
+ if result.is_proven() {
if let Ok(InferOk { value, obligations }) =
self.infcx.instantiate_query_response_and_region_obligations(
self.cause,
};
}
}
-
- _ => { /* fallthrough to error-handling code below */ }
}
// Errors and ambiuity in dropck occur in two cases:
// Either of these should have created an error before.
tcx.sess
.delay_span_bug(span, "dtorck encountered internal error");
- return InferOk {
+
+ InferOk {
value: vec![],
obligations: vec![],
- };
+ }
}
}
span: Span,
ty: Ty<'tcx>,
) {
- for overflow_ty in self.overflows.iter().take(1) {
+ if let Some(overflow_ty) = self.overflows.iter().next() {
let mut err = struct_span_err!(
tcx.sess,
span,