-use rustc::traits::{Normalized, ObligationCause};
use rustc::traits::query::NoSolution;
use rustc::ty::query::Providers;
use rustc::ty::{self, ParamEnvAnd, Ty, TyCtxt};
+use rustc_infer::infer::TyCtxtInferExt;
+use rustc_infer::traits::{Normalized, ObligationCause};
use std::sync::atomic::Ordering;
crate fn provide(p: &mut Providers<'_>) {
- *p = Providers {
- normalize_ty_after_erasing_regions,
- ..*p
- };
+ *p = Providers { normalize_ty_after_erasing_regions, ..*p };
}
fn normalize_ty_after_erasing_regions<'tcx>(
tcx.infer_ctxt().enter(|infcx| {
let cause = ObligationCause::dummy();
match infcx.at(&cause, param_env).normalize(&value) {
- Ok(Normalized {
- value: normalized_value,
- obligations: normalized_obligations,
- }) => {
+ Ok(Normalized { value: normalized_value, obligations: normalized_obligations }) => {
// We don't care about the `obligations`; they are
// always only region relations, and we are about to
// erase those anyway:
debug_assert_eq!(
- normalized_obligations
- .iter()
- .find(|p| not_outlives_predicate(&p.predicate)),
+ normalized_obligations.iter().find(|p| not_outlives_predicate(&p.predicate)),
None,
);