use rustc_span::source_map::{Span, Spanned};
use rustc_span::symbol::{kw, sym, Ident};
use rustc_span::{BytePos, DUMMY_SP};
-use rustc_trait_selection::autoderef::Autoderef;
use rustc_trait_selection::traits::{ObligationCause, Pattern};
use ty::VariantDef;
let element_tys = tcx.mk_type_list(element_tys_iter);
let pat_ty = tcx.mk_ty(ty::Tuple(element_tys));
if let Some(mut err) = self.demand_eqtype_pat_diag(span, expected, pat_ty, ti) {
- err.emit();
+ let reported = err.emit();
// Walk subpatterns with an expected type of `err` in this case to silence
// further errors being emitted when using the bindings. #50333
- let element_tys_iter = (0..max_len).map(|_| tcx.ty_error());
+ let element_tys_iter = (0..max_len).map(|_| tcx.ty_error_with_guaranteed(reported));
for (_, elem) in elements.iter().enumerate_and_adjust(max_len, ddpos) {
- self.check_pat(elem, tcx.ty_error(), def_bm, ti);
+ self.check_pat(elem, tcx.ty_error_with_guaranteed(reported), def_bm, ti);
}
tcx.mk_tup(element_tys_iter)
} else {
&& let ty::Array(..) | ty::Slice(..) = ty.kind()
{
err.help("the semantics of slice patterns changed recently; see issue #62254");
- } else if Autoderef::new(&self.infcx, self.param_env, self.body_id, span, expected_ty, span)
+ } else if self.autoderef(span, expected_ty)
.any(|(ty, _)| matches!(ty.kind(), ty::Slice(..) | ty::Array(..)))
&& let (Some(span), true) = (ti.span, ti.origin_expr)
&& let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(span)