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Rename PointerSized to PointerLike
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@ -126,7 +126,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
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let vtable = self.get_vtable_ptr(src.layout.ty, data.principal())?;
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let vtable = Scalar::from_maybe_pointer(vtable, self);
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let data = self.read_immediate(src)?.to_scalar();
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let _assert_pointer_sized = data.to_pointer(self)?;
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let _assert_pointer_like = data.to_pointer(self)?;
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let val = Immediate::ScalarPair(data, vtable);
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self.write_immediate(val, dest)?;
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} else {
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@ -287,7 +287,7 @@ language_item_table! {
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TryTraitBranch, sym::branch, branch_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
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TryTraitFromYeet, sym::from_yeet, from_yeet_fn, Target::Fn, GenericRequirement::None;
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PointerSized, sym::pointer_sized, pointer_sized, Target::Trait, GenericRequirement::Exact(0);
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PointerLike, sym::pointer_like, pointer_like, Target::Trait, GenericRequirement::Exact(0);
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Poll, sym::Poll, poll, Target::Enum, GenericRequirement::None;
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PollReady, sym::Ready, poll_ready_variant, Target::Variant, GenericRequirement::None;
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@ -765,7 +765,7 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
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self.cause.clone(),
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self.param_env,
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ty::Binder::dummy(
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self.tcx.at(self.cause.span).mk_trait_ref(hir::LangItem::PointerSized, [a]),
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self.tcx.at(self.cause.span).mk_trait_ref(hir::LangItem::PointerLike, [a]),
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),
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));
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@ -1084,7 +1084,7 @@ symbols! {
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plugins,
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pointee_trait,
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pointer,
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pointer_sized,
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pointer_like,
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poll,
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position,
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post_dash_lto: "post-lto",
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@ -128,9 +128,9 @@ pub(super) trait GoalKind<'tcx>: TypeFoldable<'tcx> + Copy + Eq {
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goal: Goal<'tcx, Self>,
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) -> QueryResult<'tcx>;
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// A type is `PointerSized` if we can compute its layout, and that layout
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// A type is `PointerLike` if we can compute its layout, and that layout
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// matches the layout of `usize`.
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fn consider_builtin_pointer_sized_candidate(
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fn consider_builtin_pointer_like_candidate(
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ecx: &mut EvalCtxt<'_, 'tcx>,
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goal: Goal<'tcx, Self>,
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) -> QueryResult<'tcx>;
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@ -312,8 +312,8 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
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|| lang_items.clone_trait() == Some(trait_def_id)
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{
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G::consider_builtin_copy_clone_candidate(self, goal)
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} else if lang_items.pointer_sized() == Some(trait_def_id) {
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G::consider_builtin_pointer_sized_candidate(self, goal)
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} else if lang_items.pointer_like() == Some(trait_def_id) {
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G::consider_builtin_pointer_like_candidate(self, goal)
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} else if let Some(kind) = self.tcx().fn_trait_kind_from_def_id(trait_def_id) {
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G::consider_builtin_fn_trait_candidates(self, goal, kind)
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} else if lang_items.tuple_trait() == Some(trait_def_id) {
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@ -370,11 +370,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
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bug!("`Copy`/`Clone` does not have an associated type: {:?}", goal);
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}
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fn consider_builtin_pointer_sized_candidate(
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fn consider_builtin_pointer_like_candidate(
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_ecx: &mut EvalCtxt<'_, 'tcx>,
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goal: Goal<'tcx, Self>,
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) -> QueryResult<'tcx> {
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bug!("`PointerSized` does not have an associated type: {:?}", goal);
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bug!("`PointerLike` does not have an associated type: {:?}", goal);
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}
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fn consider_builtin_fn_trait_candidates(
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@ -131,7 +131,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
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)
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}
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fn consider_builtin_pointer_sized_candidate(
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fn consider_builtin_pointer_like_candidate(
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ecx: &mut EvalCtxt<'_, 'tcx>,
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goal: Goal<'tcx, Self>,
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) -> QueryResult<'tcx> {
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@ -94,7 +94,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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self.assemble_candidates_for_transmutability(obligation, &mut candidates);
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} else if lang_items.tuple_trait() == Some(def_id) {
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self.assemble_candidate_for_tuple(obligation, &mut candidates);
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} else if lang_items.pointer_sized() == Some(def_id) {
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} else if lang_items.pointer_like() == Some(def_id) {
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self.assemble_candidate_for_ptr_sized(obligation, &mut candidates);
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} else {
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if lang_items.clone_trait() == Some(def_id) {
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@ -872,13 +872,14 @@ pub trait Destruct {}
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pub trait Tuple {}
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/// A marker for things
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#[unstable(feature = "pointer_sized_trait", issue = "none")]
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#[lang = "pointer_sized"]
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#[unstable(feature = "pointer_like_trait", issue = "none")]
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#[cfg_attr(bootstrap, lang = "pointer_sized")]
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#[cfg_attr(not(bootstrap), lang = "pointer_like")]
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#[rustc_on_unimplemented(
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message = "`{Self}` needs to be a pointer-sized type",
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label = "`{Self}` needs to be a pointer-sized type"
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message = "`{Self}` needs to have the same alignment and size as a pointer",
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label = "`{Self}` needs to be a pointer-like type"
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)]
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pub trait PointerSized {}
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pub trait PointerLike {}
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/// Implementations of `Copy` for primitive types.
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///
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@ -7,13 +7,13 @@ LL | #![feature(dyn_star)]
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= note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
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= note: `#[warn(incomplete_features)]` on by default
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error[E0277]: `AlignedUsize` needs to be a pointer-sized type
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error[E0277]: `AlignedUsize` needs to have the same alignment and size as a pointer
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--> $DIR/align.rs:15:13
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LL | let x = AlignedUsize(12) as dyn* Debug;
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| ^^^^^^^^^^^^^^^^ `AlignedUsize` needs to be a pointer-sized type
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| ^^^^^^^^^^^^^^^^ `AlignedUsize` needs to be a pointer-like type
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= help: the trait `PointerSized` is not implemented for `AlignedUsize`
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= help: the trait `PointerLike` is not implemented for `AlignedUsize`
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error: aborting due to previous error; 1 warning emitted
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@ -13,5 +13,5 @@ struct AlignedUsize(usize);
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fn main() {
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let x = AlignedUsize(12) as dyn* Debug;
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//[over_aligned]~^ ERROR `AlignedUsize` needs to be a pointer-sized type
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//[over_aligned]~^ ERROR `AlignedUsize` needs to have the same alignment and size as a pointer
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}
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@ -9,7 +9,7 @@ fn dyn_debug(_: (dyn* Debug + '_)) {
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fn polymorphic<T: Debug + ?Sized>(t: &T) {
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dyn_debug(t);
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//~^ ERROR `&T` needs to be a pointer-sized type
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//~^ ERROR `&T` needs to have the same alignment and size as a pointer
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}
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fn main() {}
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@ -1,14 +1,14 @@
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error[E0277]: `&T` needs to be a pointer-sized type
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error[E0277]: `&T` needs to have the same alignment and size as a pointer
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--> $DIR/check-size-at-cast-polymorphic-bad.rs:11:15
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LL | dyn_debug(t);
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| ^ `&T` needs to be a pointer-sized type
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| ^ `&T` needs to be a pointer-like type
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= help: the trait `PointerSized` is not implemented for `&T`
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= help: the trait `PointerLike` is not implemented for `&T`
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help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
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LL | fn polymorphic<T: Debug + ?Sized>(t: &T) where &T: PointerSized {
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| ++++++++++++++++++++++
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LL | fn polymorphic<T: Debug + ?Sized>(t: &T) where &T: PointerLike {
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| +++++++++++++++++++++
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error: aborting due to previous error
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@ -5,6 +5,6 @@ use std::fmt::Debug;
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fn main() {
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let i = [1, 2, 3, 4] as dyn* Debug;
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//~^ ERROR `[i32; 4]` needs to be a pointer-sized type
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//~^ ERROR `[i32; 4]` needs to have the same alignment and size as a pointer
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dbg!(i);
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}
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@ -1,10 +1,10 @@
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error[E0277]: `[i32; 4]` needs to be a pointer-sized type
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error[E0277]: `[i32; 4]` needs to have the same alignment and size as a pointer
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--> $DIR/check-size-at-cast.rs:7:13
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LL | let i = [1, 2, 3, 4] as dyn* Debug;
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| ^^^^^^^^^^^^ `[i32; 4]` needs to be a pointer-sized type
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| ^^^^^^^^^^^^ `[i32; 4]` needs to be a pointer-like type
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= help: the trait `PointerSized` is not implemented for `[i32; 4]`
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= help: the trait `PointerLike` is not implemented for `[i32; 4]`
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error: aborting due to previous error
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@ -7,13 +7,13 @@ LL | #![feature(dyn_star, trait_upcasting)]
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= note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
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= note: `#[warn(incomplete_features)]` on by default
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error[E0277]: `dyn* Foo` needs to be a pointer-sized type
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error[E0277]: `dyn* Foo` needs to have the same alignment and size as a pointer
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--> $DIR/upcast.rs:30:23
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LL | let w: dyn* Bar = w;
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| ^ `dyn* Foo` needs to be a pointer-sized type
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| ^ `dyn* Foo` needs to be a pointer-like type
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= help: the trait `PointerSized` is not implemented for `dyn* Foo`
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= help: the trait `PointerLike` is not implemented for `dyn* Foo`
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error: aborting due to previous error; 1 warning emitted
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14
tests/ui/traits/new-solver/pointer-like.rs
Normal file
14
tests/ui/traits/new-solver/pointer-like.rs
Normal file
@ -0,0 +1,14 @@
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// compile-flags: -Ztrait-solver=next
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#![feature(pointer_like_trait)]
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use std::marker::PointerLike;
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fn require_(_: impl PointerLike) {}
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fn main() {
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require_(1usize);
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require_(1u16);
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//~^ ERROR `u16` needs to have the same alignment and size as a pointer
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require_(&1i16);
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}
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24
tests/ui/traits/new-solver/pointer-like.stderr
Normal file
24
tests/ui/traits/new-solver/pointer-like.stderr
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@ -0,0 +1,24 @@
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error[E0277]: `u16` needs to have the same alignment and size as a pointer
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--> $DIR/pointer-like.rs:11:14
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LL | require_(1u16);
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| -------- ^^^^ the trait `PointerLike` is not implemented for `u16`
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| |
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| required by a bound introduced by this call
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= note: the trait bound `u16: PointerLike` is not satisfied
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note: required by a bound in `require_`
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--> $DIR/pointer-like.rs:7:21
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LL | fn require_(_: impl PointerLike) {}
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| ^^^^^^^^^^^ required by this bound in `require_`
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help: consider borrowing here
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LL | require_(&1u16);
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| +
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LL | require_(&mut 1u16);
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| ++++
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0277`.
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@ -1,12 +0,0 @@
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#![feature(pointer_sized_trait)]
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use std::marker::PointerSized;
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fn require_pointer_sized(_: impl PointerSized) {}
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fn main() {
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require_pointer_sized(1usize);
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require_pointer_sized(1u16);
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//~^ ERROR `u16` needs to be a pointer-sized type
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require_pointer_sized(&1i16);
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}
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@ -1,24 +0,0 @@
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error[E0277]: `u16` needs to be a pointer-sized type
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--> $DIR/pointer-sized.rs:9:27
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LL | require_pointer_sized(1u16);
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| --------------------- ^^^^ the trait `PointerSized` is not implemented for `u16`
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| |
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| required by a bound introduced by this call
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= note: the trait bound `u16: PointerSized` is not satisfied
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note: required by a bound in `require_pointer_sized`
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--> $DIR/pointer-sized.rs:5:34
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LL | fn require_pointer_sized(_: impl PointerSized) {}
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| ^^^^^^^^^^^^ required by this bound in `require_pointer_sized`
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help: consider borrowing here
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LL | require_pointer_sized(&1u16);
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| +
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LL | require_pointer_sized(&mut 1u16);
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| ++++
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0277`.
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