Rollup merge of #103488 - oli-obk:impl_trait_for_tait, r=lcnr

[rust.git] / compiler / rustc_middle / src / ty / adjustment.rs

diff --git a/compiler/rustc_middle/src/ty/adjustment.rs b/compiler/rustc_middle/src/ty/adjustment.rs
index 4682ac96b5297ba2dde0aff44b4c47a906c606e5..b8e6f0258d0191a7b397741b57b27d6469c644c7 100644 (file)
--- a/compiler/rustc_middle/src/ty/adjustment.rs
+++ b/compiler/rustc_middle/src/ty/adjustment.rs
@@ -1,7 +1,5 @@
-use crate::ty::subst::SubstsRef;
 use crate::ty::{self, Ty, TyCtxt};
 use rustc_hir as hir;
-use rustc_hir::def_id::DefId;
 use rustc_hir::lang_items::LangItem;
 use rustc_macros::HashStable;
 use rustc_span::Span;
@@ -121,7 +119,8 @@ pub struct OverloadedDeref<'tcx> {
 }
 
 impl<'tcx> OverloadedDeref<'tcx> {
-    pub fn method_call(&self, tcx: TyCtxt<'tcx>, source: Ty<'tcx>) -> (DefId, SubstsRef<'tcx>) {
+    /// Get the zst function item type for this method call.
+    pub fn method_call(&self, tcx: TyCtxt<'tcx>, source: Ty<'tcx>) -> Ty<'tcx> {
         let trait_def_id = match self.mutbl {
             hir::Mutability::Not => tcx.require_lang_item(LangItem::Deref, None),
             hir::Mutability::Mut => tcx.require_lang_item(LangItem::DerefMut, None),
@@ -132,7 +131,7 @@ pub fn method_call(&self, tcx: TyCtxt<'tcx>, source: Ty<'tcx>) -> (DefId, Substs
             .find(|m| m.kind == ty::AssocKind::Fn)
             .unwrap()
             .def_id;
-        (method_def_id, tcx.mk_substs_trait(source, &[]))
+        tcx.mk_fn_def(method_def_id, tcx.mk_substs_trait(source, []))
     }
 }