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Properly implement should_encode_fn_impl_trait_in_trait using new unstable option

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Santiago Pastorino 2023-02-28 13:13:31 -03:00
parent 811a1cabda
commit 73e2fe0494
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1 changed files with 12 additions and 3 deletions
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15
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -1101,9 +1101,18 @@ fn should_encode_const(def_kind: DefKind) -> bool {
}
}
// Return `false` to avoid encoding impl trait in trait, while we don't use the query.
fn should_encode_fn_impl_trait_in_trait<'tcx>(_tcx: TyCtxt<'tcx>, _def_id: DefId) -> bool {
false
// We only encode impl trait in trait when using `lower-impl-trait-in-trait-to-assoc-ty` unstable
// option.
fn should_encode_fn_impl_trait_in_trait<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> bool {
if tcx.sess.opts.unstable_opts.lower_impl_trait_in_trait_to_assoc_ty
&& let Some(assoc_item) = tcx.opt_associated_item(def_id)
&& assoc_item.container == ty::AssocItemContainer::TraitContainer
&& assoc_item.kind == ty::AssocKind::Fn
{
true
} else {
false
}
}
impl<'a, 'tcx> EncodeContext<'a, 'tcx> {