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rustdoc: Don't enter an infer_ctxt in get_blanket_impls for impls that aren't blanket impls #82864

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Mar 30, 2021
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rustdoc: Don't enter an infer_ctxt in get_blanket_impls for impls that aren't blanket impls #82864

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8 changes: 2 additions & 6 deletions src/librustdoc/clean/blanket_impl.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -32,12 +32,8 @@ impl<'a, 'tcx> BlanketImplFinder<'a, 'tcx> {
trait_def_id, impl_def_id
);
let trait_ref = self.cx.tcx.impl_trait_ref(impl_def_id).unwrap();
let may_apply = self.cx.tcx.infer_ctxt().enter(|infcx| {
match trait_ref.self_ty().kind() {
ty::Param(_) => {}
_ => return false,
}

let is_param = matches!(trait_ref.self_ty().kind(), ty::Param(_));
let may_apply = is_param && self.cx.tcx.infer_ctxt().enter(|infcx| {
let substs = infcx.fresh_substs_for_item(DUMMY_SP, item_def_id);
let ty = ty.subst(infcx.tcx, substs);
let param_env = param_env.subst(infcx.tcx, substs);
Expand Down