Auto merge of #104889 - GuillaumeGomez:fix-impl-block-in-const-expr, r=notriddle

[rust.git] / compiler / rustc_mir_transform / src / shim.rs

diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs
index f92a0e826dcdfb6dcf55e264235d07e360a5137f..f8b55c862875e06796968c7cc1bbc0d9de190570 100644 (file)
--- a/compiler/rustc_mir_transform/src/shim.rs
+++ b/compiler/rustc_mir_transform/src/shim.rs
@@ -336,8 +336,7 @@ fn new(tcx: TyCtxt<'tcx>, def_id: DefId, self_ty: Ty<'tcx>) -> Self {
         // we must subst the self_ty because it's
         // otherwise going to be TySelf and we can't index
         // or access fields of a Place of type TySelf.
-        let substs = tcx.mk_substs_trait(self_ty, []);
-        let sig = tcx.bound_fn_sig(def_id).subst(tcx, substs);
+        let sig = tcx.bound_fn_sig(def_id).subst(tcx, &[self_ty.into()]);
         let sig = tcx.erase_late_bound_regions(sig);
         let span = tcx.def_span(def_id);
 
@@ -417,10 +416,8 @@ fn make_clone_call(
     ) {
         let tcx = self.tcx;
 
-        let substs = tcx.mk_substs_trait(ty, []);
-
         // `func == Clone::clone(&ty) -> ty`
-        let func_ty = tcx.mk_fn_def(self.def_id, substs);
+        let func_ty = tcx.mk_fn_def(self.def_id, [ty]);
         let func = Operand::Constant(Box::new(Constant {
             span: self.span,
             user_ty: None,
@@ -575,9 +572,8 @@ fn build_call_shim<'tcx>(
 
         // Create substitutions for the `Self` and `Args` generic parameters of the shim body.
         let arg_tup = tcx.mk_tup(untuple_args.iter());
-        let sig_substs = tcx.mk_substs_trait(ty, [ty::subst::GenericArg::from(arg_tup)]);
 
-        (Some(sig_substs), Some(untuple_args))
+        (Some([ty.into(), arg_tup.into()]), Some(untuple_args))
     } else {
         (None, None)
     };
@@ -588,7 +584,7 @@ fn build_call_shim<'tcx>(
 
     assert_eq!(sig_substs.is_some(), !instance.has_polymorphic_mir_body());
     let mut sig =
-        if let Some(sig_substs) = sig_substs { sig.subst(tcx, sig_substs) } else { sig.0 };
+        if let Some(sig_substs) = sig_substs { sig.subst(tcx, &sig_substs) } else { sig.0 };
 
     if let CallKind::Indirect(fnty) = call_kind {
         // `sig` determines our local decls, and thus the callee type in the `Call` terminator. This