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Simplify the recovered tuple ty

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This commit is contained in:
Esteban Küber 2018-08-19 15:12:09 -07:00
parent 3d7099a968
commit 633a47becb
1 changed files with 1 additions and 2 deletions
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3
src/librustc_typeck/check/_match.rs
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@ -301,11 +301,10 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
self.demand_eqtype(pat.span, expected, pat_ty);
if self.has_errors.get() {
let element_tys_iter = (0..max_len).map(|_| tcx.types.err);
let element_tys = tcx.mk_type_list(element_tys_iter);
for (_, elem) in elements.iter().enumerate_and_adjust(max_len, ddpos) {
self.check_pat_walk(elem, &tcx.types.err, def_bm, true);
}
tcx.mk_ty(ty::TyTuple(element_tys))
tcx.mk_tup(element_tys_iter)
} else {
for (i, elem) in elements.iter().enumerate_and_adjust(max_len, ddpos) {
self.check_pat_walk(elem, &element_tys[i], def_bm, true);