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