mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-18 19:43:43 +00:00
c599761140
This function is now used to check `#[panic_handler]`, `start` lang item, `main`, `#[start]` and intrinsic functions. The diagnosis produced are now closer to the ones produced by trait/impl method signature mismatch.
41 lines
751 B
Rust
41 lines
751 B
Rust
#![feature(no_core)]
|
|
#![feature(lang_items)]
|
|
|
|
#![no_core]
|
|
|
|
#[cfg(target_os = "linux")]
|
|
#[link(name = "c")]
|
|
extern {}
|
|
|
|
#[lang = "start"]
|
|
fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8) -> isize {
|
|
//~^ ERROR lang item `start` function has wrong type [E0308]
|
|
40+2
|
|
}
|
|
|
|
#[lang = "sized"]
|
|
pub trait Sized {}
|
|
#[lang = "copy"]
|
|
pub trait Copy {}
|
|
|
|
#[lang = "drop_in_place"]
|
|
#[allow(unconditional_recursion)]
|
|
pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
|
|
drop_in_place(to_drop)
|
|
}
|
|
|
|
#[lang = "add"]
|
|
trait Add<RHS> {
|
|
type Output;
|
|
fn add(self, other: RHS) -> Self::Output;
|
|
}
|
|
|
|
impl Add<isize> for isize {
|
|
type Output = isize;
|
|
fn add(self, other: isize) -> isize {
|
|
self + other
|
|
}
|
|
}
|
|
|
|
fn main() {}
|