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cranelift/gcc: {Meta,Pointee,}Sized in minicore

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As in many previous commits, adding the new traits to minicore, but this
time for cranelift and gcc.
This commit is contained in:
David Wood
2025-03-05 04:31:12 +00:00
parent 8f47346726
commit e9d795d717
1 changed files with 36 additions and 30 deletions
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66
example/mini_core.rs
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@@ -19,8 +19,14 @@ unsafe extern "C" fn _Unwind_Resume() {
intrinsics::unreachable();
}
#[lang = "pointee_sized"]
pub trait PointeeSized {}
#[lang = "meta_sized"]
pub trait MetaSized: PointeeSized {}
#[lang = "sized"]
pub trait Sized {}
pub trait Sized: MetaSized {}
#[lang = "destruct"]
pub trait Destruct {}
@@ -29,35 +35,35 @@ pub trait Destruct {}
pub trait Tuple {}
#[lang = "unsize"]
pub trait Unsize<T: ?Sized> {}
pub trait Unsize<T: PointeeSized>: PointeeSized {}
#[lang = "coerce_unsized"]
pub trait CoerceUnsized<T> {}
impl<'a, 'b: 'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a U> for &'b T {}
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a mut U> for &'a mut T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*const U> for *const T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*mut U> for *mut T {}
impl<'a, 'b: 'a, T: PointeeSized + Unsize<U>, U: PointeeSized> CoerceUnsized<&'a U> for &'b T {}
impl<'a, T: PointeeSized + Unsize<U>, U: PointeeSized> CoerceUnsized<&'a mut U> for &'a mut T {}
impl<T: PointeeSized + Unsize<U>, U: PointeeSized> CoerceUnsized<*const U> for *const T {}
impl<T: PointeeSized + Unsize<U>, U: PointeeSized> CoerceUnsized<*mut U> for *mut T {}
#[lang = "dispatch_from_dyn"]
pub trait DispatchFromDyn<T> {}
// &T -> &U
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<&'a U> for &'a T {}
impl<'a, T: PointeeSized + Unsize<U>, U: PointeeSized> DispatchFromDyn<&'a U> for &'a T {}
// &mut T -> &mut U
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<&'a mut U> for &'a mut T {}
impl<'a, T: PointeeSized + Unsize<U>, U: PointeeSized> DispatchFromDyn<&'a mut U> for &'a mut T {}
// *const T -> *const U
impl<T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<*const U> for *const T {}
impl<T: PointeeSized + Unsize<U>, U: PointeeSized> DispatchFromDyn<*const U> for *const T {}
// *mut T -> *mut U
impl<T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<*mut U> for *mut T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<Box<U, ()>> for Box<T, ()> {}
impl<T: PointeeSized + Unsize<U>, U: PointeeSized> DispatchFromDyn<*mut U> for *mut T {}
impl<T: MetaSized + Unsize<U>, U: MetaSized> DispatchFromDyn<Box<U, ()>> for Box<T, ()> {}
#[lang = "legacy_receiver"]
pub trait LegacyReceiver {}
impl<T: ?Sized> LegacyReceiver for &T {}
impl<T: ?Sized> LegacyReceiver for &mut T {}
impl<T: ?Sized, A: Allocator> LegacyReceiver for Box<T, A> {}
impl<T: PointeeSized> LegacyReceiver for &T {}
impl<T: PointeeSized> LegacyReceiver for &mut T {}
impl<T: MetaSized> LegacyReceiver for Box<T> {}
#[lang = "receiver"]
trait Receiver {}
@@ -84,9 +90,9 @@ impl Copy for i128 {}
impl Copy for f32 {}
impl Copy for f64 {}
impl Copy for char {}
impl<'a, T: ?Sized> Copy for &'a T {}
impl<T: ?Sized> Copy for *const T {}
impl<T: ?Sized> Copy for *mut T {}
impl<'a, T: PointeeSized> Copy for &'a T {}
impl<T: PointeeSized> Copy for *const T {}
impl<T: PointeeSized> Copy for *mut T {}
#[lang = "sync"]
pub unsafe trait Sync {}
@@ -102,17 +108,17 @@ unsafe impl Sync for i16 {}
unsafe impl Sync for i32 {}
unsafe impl Sync for isize {}
unsafe impl Sync for char {}
unsafe impl<'a, T: ?Sized> Sync for &'a T {}
unsafe impl<'a, T: PointeeSized> Sync for &'a T {}
unsafe impl Sync for [u8; 16] {}
#[lang = "freeze"]
unsafe auto trait Freeze {}
unsafe impl<T: ?Sized> Freeze for PhantomData<T> {}
unsafe impl<T: ?Sized> Freeze for *const T {}
unsafe impl<T: ?Sized> Freeze for *mut T {}
unsafe impl<T: ?Sized> Freeze for &T {}
unsafe impl<T: ?Sized> Freeze for &mut T {}
unsafe impl<T: PointeeSized> Freeze for PhantomData<T> {}
unsafe impl<T: PointeeSized> Freeze for *const T {}
unsafe impl<T: PointeeSized> Freeze for *mut T {}
unsafe impl<T: PointeeSized> Freeze for &T {}
unsafe impl<T: PointeeSized> Freeze for &mut T {}
#[lang = "structural_peq"]
pub trait StructuralPartialEq {}
@@ -456,7 +462,7 @@ pub enum Option<T> {
pub use Option::*;
#[lang = "phantom_data"]
pub struct PhantomData<T: ?Sized>;
pub struct PhantomData<T: PointeeSized>;
#[lang = "fn_once"]
#[rustc_paren_sugar]
@@ -576,18 +582,18 @@ impl Allocator for Global {}
#[repr(transparent)]
#[rustc_layout_scalar_valid_range_start(1)]
#[rustc_nonnull_optimization_guaranteed]
pub struct NonNull<T: ?Sized>(pub *const T);
pub struct NonNull<T: PointeeSized>(pub *const T);
impl<T: ?Sized, U: ?Sized> CoerceUnsized<NonNull<U>> for NonNull<T> where T: Unsize<U> {}
impl<T: ?Sized, U: ?Sized> DispatchFromDyn<NonNull<U>> for NonNull<T> where T: Unsize<U> {}
impl<T: PointeeSized, U: PointeeSized> CoerceUnsized<NonNull<U>> for NonNull<T> where T: Unsize<U> {}
impl<T: PointeeSized, U: PointeeSized> DispatchFromDyn<NonNull<U>> for NonNull<T> where T: Unsize<U> {}
pub struct Unique<T: ?Sized> {
pub struct Unique<T: PointeeSized> {
pub pointer: NonNull<T>,
pub _marker: PhantomData<T>,
}
impl<T: ?Sized, U: ?Sized> CoerceUnsized<Unique<U>> for Unique<T> where T: Unsize<U> {}
impl<T: ?Sized, U: ?Sized> DispatchFromDyn<Unique<U>> for Unique<T> where T: Unsize<U> {}
impl<T: PointeeSized, U: PointeeSized> CoerceUnsized<Unique<U>> for Unique<T> where T: Unsize<U> {}
impl<T: PointeeSized, U: PointeeSized> DispatchFromDyn<Unique<U>> for Unique<T> where T: Unsize<U> {}
#[lang = "owned_box"]
pub struct Box<T: ?Sized, A: Allocator = Global>(Unique<T>, A);