77 lines
1.7 KiB
Rust
77 lines
1.7 KiB
Rust
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#![feature(no_core, lang_items, intrinsics)]
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#![no_core]
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#![allow(dead_code)]
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#[lang="sized"]
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pub trait Sized {}
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#[lang="copy"]
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pub unsafe trait Copy {}
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unsafe impl Copy for u8 {}
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unsafe impl Copy for u16 {}
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unsafe impl Copy for u32 {}
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unsafe impl Copy for u64 {}
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unsafe impl Copy for usize {}
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unsafe impl Copy for i8 {}
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unsafe impl Copy for i16 {}
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unsafe impl Copy for i32 {}
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unsafe impl Copy for isize {}
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unsafe impl<'a, T: ?Sized> Copy for &'a T {}
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unsafe impl<T: ?Sized> Copy for *const T {}
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#[lang="freeze"]
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trait Freeze {}
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#[lang="mul"]
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pub trait Mul<RHS = Self> {
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type Output;
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#[must_use]
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fn mul(self, rhs: RHS) -> Self::Output;
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}
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impl Mul for u8 {
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type Output = Self;
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fn mul(self, rhs: Self) -> Self {
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self * rhs
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}
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}
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#[lang = "eq"]
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pub trait PartialEq<Rhs: ?Sized = Self> {
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fn eq(&self, other: &Rhs) -> bool;
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fn ne(&self, other: &Rhs) -> bool;
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}
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impl PartialEq for u8 {
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fn eq(&self, other: &u8) -> bool { (*self) == (*other) }
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fn ne(&self, other: &u8) -> bool { (*self) != (*other) }
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}
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impl<T: ?Sized> PartialEq for *const T {
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fn eq(&self, other: &*const T) -> bool { *self == *other }
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fn ne(&self, other: &*const T) -> bool { *self != *other }
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}
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#[lang="panic"]
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pub fn panic(_expr_file_line_col: &(&'static str, &'static str, u32, u32)) -> ! {
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loop {}
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}
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#[lang = "drop_in_place"]
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#[allow(unconditional_recursion)]
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pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
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// Code here does not matter - this is replaced by the
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// real drop glue by the compiler.
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drop_in_place(to_drop);
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}
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pub mod intrinsics {
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extern "rust-intrinsic" {
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pub fn size_of<T>() -> usize;
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pub fn copy<T>(src: *const T, dst: *mut T, count: usize);
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}
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}
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