| #![feature(no_core, lang_items)] |
| #![no_core] |
| |
| #[lang = "sized"] |
| pub trait Sized {} |
| |
| #[lang = "structural_peq"] |
| pub trait StructuralPartialEq {} |
| |
| #[lang = "structural_teq"] |
| pub trait StructuralEq {} |
| |
| #[lang = "phantom_data"] |
| pub struct PhantomData<T: ?Sized>; |
| |
| pub mod option { |
| pub enum Option<T> { |
| #[lang = "None"] |
| None, |
| #[lang = "Some"] |
| Some(T), |
| } |
| } |
| |
| pub use option::Option; |
| |
| pub mod cmp { |
| use crate::Sized; |
| |
| #[lang = "eq"] |
| pub trait PartialEq<Rhs: ?Sized = Self> { |
| fn eq(&self, other: &Rhs) -> bool; |
| fn ne(&self, other: &Rhs) -> bool { |
| !self.eq(other) |
| } |
| } |
| |
| pub trait Eq: PartialEq<Self> { |
| fn assert_receiver_is_total_eq(&self) {} |
| } |
| |
| pub enum Ordering { |
| Less = -1, |
| Equal = 0, |
| Greater = 1, |
| } |
| |
| #[lang = "partial_ord"] |
| pub trait PartialOrd<Rhs: ?Sized = Self>: PartialEq<Rhs> { |
| fn partial_cmp(&self, other: &Rhs) -> crate::Option<Ordering>; |
| } |
| |
| pub trait Ord: Eq + PartialOrd<Self> { |
| fn cmp(&self, other: &Self) -> Ordering; |
| } |
| } |
| |
| use cmp::{Eq, Ord, PartialEq, PartialOrd}; |
| |
| #[derive(PartialEq, PartialOrd, Eq, Ord)] |
| pub struct Wrapping<T>(pub T); |
| |
| fn main() -> i32 { |
| 0 |
| } |
