| #![feature(no_core, intrinsics, lang_items, staged_api)] |
| #![no_core] |
| |
| #[lang = "sized"] |
| pub trait Sized {} |
| |
| mod my_u32 { |
| impl u32 { |
| pub const fn to_be_bytes(self) -> [u8; crate::mem::size_of::<Self>()] { |
| [0; crate::mem::size_of::<Self>()] |
| } |
| |
| pub fn other_method(self) -> u32 { |
| self |
| } |
| } |
| } |
| |
| mod my_f32 { |
| impl f32 { |
| pub fn to_bits(self) -> u32 { |
| 0 |
| } |
| |
| pub fn do_something(self) -> u32 { |
| self.to_bits().other_method() |
| } |
| } |
| } |
| |
| extern "rust-intrinsic" { |
| #[rustc_const_stable(feature = "const_size_of", since = "1.40.0")] |
| pub fn size_of<T>() -> usize; |
| } |
| |
| mod mem { |
| pub const fn size_of<T>() -> usize { |
| crate::size_of::<T>() |
| } |
| } |
| |
| fn main() -> i32 { |
| let x: f32 = 0.0; |
| let _ = x.do_something(); |
| 0 |
| } |
