#![feature(
- no_core, lang_items, intrinsics, unboxed_closures, type_ascription, extern_types,
- untagged_unions, decl_macro, rustc_attrs, transparent_unions, optin_builtin_traits,
- thread_local,
+ no_core,
+ lang_items,
+ intrinsics,
+ unboxed_closures,
+ extern_types,
+ decl_macro,
+ rustc_attrs,
+ transparent_unions,
+ auto_traits,
+ thread_local
)]
#![no_core]
#![allow(dead_code)]
#[lang = "sized"]
pub trait Sized {}
+#[lang = "destruct"]
+pub trait Destruct {}
+
#[lang = "unsize"]
pub trait Unsize<T: ?Sized> {}
unsafe impl Copy for u16 {}
unsafe impl Copy for u32 {}
unsafe impl Copy for u64 {}
+unsafe impl Copy for u128 {}
unsafe impl Copy for usize {}
unsafe impl Copy for i8 {}
unsafe impl Copy for i16 {}
unsafe impl Copy for i32 {}
unsafe impl Copy for isize {}
unsafe impl Copy for f32 {}
+unsafe impl Copy for f64 {}
unsafe impl Copy for char {}
unsafe impl<'a, T: ?Sized> Copy for &'a T {}
unsafe impl<T: ?Sized> Copy for *const T {}
unsafe impl<T: ?Sized> Copy for *mut T {}
+unsafe impl<T: Copy> Copy for Option<T> {}
#[lang = "sync"]
pub unsafe trait Sync {}
unsafe impl<T: ?Sized> Freeze for &T {}
unsafe impl<T: ?Sized> Freeze for &mut T {}
+#[lang = "structural_peq"]
+pub trait StructuralPartialEq {}
+
+#[lang = "structural_teq"]
+pub trait StructuralEq {}
+
#[lang = "not"]
pub trait Not {
type Output;
}
}
+impl PartialEq for u128 {
+ fn eq(&self, other: &u128) -> bool {
+ (*self) == (*other)
+ }
+ fn ne(&self, other: &u128) -> bool {
+ (*self) != (*other)
+ }
+}
+
impl PartialEq for usize {
fn eq(&self, other: &usize) -> bool {
(*self) == (*other)
}
}
+impl <T: PartialEq> PartialEq for Option<T> {
+ fn eq(&self, other: &Self) -> bool {
+ match (self, other) {
+ (Some(lhs), Some(rhs)) => *lhs == *rhs,
+ (None, None) => true,
+ _ => false,
+ }
+ }
+
+ fn ne(&self, other: &Self) -> bool {
+ match (self, other) {
+ (Some(lhs), Some(rhs)) => *lhs != *rhs,
+ (None, None) => false,
+ _ => true,
+ }
+ }
+}
+
+#[lang = "shl"]
+pub trait Shl<RHS = Self> {
+ type Output;
+
+ #[must_use]
+ fn shl(self, rhs: RHS) -> Self::Output;
+}
+
+impl Shl for u128 {
+ type Output = u128;
+
+ fn shl(self, rhs: u128) -> u128 {
+ self << rhs
+ }
+}
+
#[lang = "neg"]
pub trait Neg {
type Output;
#[lang = "fn_once"]
#[rustc_paren_sugar]
pub trait FnOnce<Args> {
+ #[lang = "fn_once_output"]
type Output;
extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
}
#[lang = "panic"]
-pub fn panic(&(_msg, _file, _line, _col): &(&'static str, &'static str, u32, u32)) -> ! {
+#[track_caller]
+pub fn panic(_msg: &'static str) -> ! {
+ unsafe {
+ libc::puts("Panicking\n\0" as *const str as *const i8);
+ intrinsics::abort();
+ }
+}
+
+#[lang = "panic_bounds_check"]
+#[track_caller]
+fn panic_bounds_check(index: usize, len: usize) -> ! {
unsafe {
- libc::puts("Panicking\0" as *const str as *const u8);
+ libc::printf("index out of bounds: the len is %d but the index is %d\n\0" as *const str as *const i8, len, index);
intrinsics::abort();
}
}
fn deref(&self) -> &Self::Target;
}
+#[repr(transparent)]
+#[rustc_layout_scalar_valid_range_start(1)]
+#[rustc_nonnull_optimization_guaranteed]
+pub struct NonNull<T: ?Sized>(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> {}
+
+pub struct Unique<T: ?Sized> {
+ 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> {}
+
#[lang = "owned_box"]
-pub struct Box<T: ?Sized>(*mut T);
+pub struct Box<T: ?Sized>(Unique<T>, ());
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Box<U>> for Box<T> {}
}
}
-impl<T> Deref for Box<T> {
+impl<T: ?Sized> Deref for Box<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
}
#[lang = "box_free"]
-unsafe fn box_free<T: ?Sized>(ptr: *mut T) {
- libc::free(ptr as *mut u8);
+unsafe fn box_free<T: ?Sized>(ptr: Unique<T>, _alloc: ()) {
+ libc::free(ptr.pointer.0 as *mut u8);
}
#[lang = "drop"]
pub fn copy<T>(src: *const T, dst: *mut T, count: usize);
pub fn transmute<T, U>(e: T) -> U;
pub fn ctlz_nonzero<T>(x: T) -> T;
- pub fn needs_drop<T>() -> bool;
+ pub fn needs_drop<T: ?::Sized>() -> bool;
pub fn bitreverse<T>(x: T) -> T;
pub fn bswap<T>(x: T) -> T;
pub fn write_bytes<T>(dst: *mut T, val: u8, count: usize);
}
pub mod libc {
- #[link(name = "c")]
+ // With the new Universal CRT, msvc has switched to all the printf functions being inline wrapper
+ // functions. legacy_stdio_definitions.lib which provides the printf wrapper functions as normal
+ // symbols to link against.
+ #[cfg_attr(unix, link(name = "c"))]
+ #[cfg_attr(target_env="msvc", link(name="legacy_stdio_definitions"))]
extern "C" {
- pub fn puts(s: *const u8) -> i32;
pub fn printf(format: *const i8, ...) -> i32;
+ }
+
+ #[cfg_attr(unix, link(name = "c"))]
+ #[cfg_attr(target_env = "msvc", link(name = "msvcrt"))]
+ extern "C" {
+ pub fn puts(s: *const i8) -> i32;
pub fn malloc(size: usize) -> *mut u8;
pub fn free(ptr: *mut u8);
pub fn memcpy(dst: *mut u8, src: *const u8, size: usize);
#[rustc_macro_transparency = "semitransparent"]
pub macro cfg() { /* compiler built-in */ }
+#[rustc_builtin_macro]
+#[rustc_macro_transparency = "semitransparent"]
+pub macro global_asm() { /* compiler built-in */ }
+
pub static A_STATIC: u8 = 42;
#[lang = "panic_location"]
}
#[no_mangle]
+#[cfg(not(windows))]
pub fn get_tls() -> u8 {
#[thread_local]
static A: u8 = 42;