rust/tests/ui/lang-items/required-lang-item.rs

// build-fail

#![feature(lang_items, no_core)]
#![no_core]

#[lang="copy"] pub trait Copy { }
#[lang="sized"] pub trait Sized { }

// error-pattern:requires `start` lang_item

fn main() {}
rework run-fail and support check,build-fail 2019-12-13 21:28:32 -06:00			`// build-fail`

syntax: Implement #![no_core] This commit is an implementation of [RFC 1184][rfc] which tweaks the behavior of the `#![no_std]` attribute and adds a new `#![no_core]` attribute. The `#![no_std]` attribute now injects `extern crate core` at the top of the crate as well as the libcore prelude into all modules (in the same manner as the standard library's prelude). The `#![no_core]` attribute disables both std and core injection. [rfc]: https://github.com/rust-lang/rfcs/pull/1184 2015-07-29 19:01:14 -05:00			`#![feature(lang_items, no_core)]`
			`#![no_core]`
Renumber the lang items correctly Also add a test to help prevent this from getting out of sync again. 2013-09-18 03:37:34 -05:00
rustc_typeck: correctly track "always-diverges" and "has-type-errors". 2016-10-25 18:28:20 -05:00			`#[lang="copy"] pub trait Copy { }`
Fallout in tests 2015-03-31 18:58:01 -05:00			`#[lang="sized"] pub trait Sized { }`
Ensure that the return type of a function is Sized While no real rvalue of an unsized type can exist, a diverging function can still "return" a value of such a type, which causes an ICE. Fixes #18107. 2014-10-18 15:12:02 -05:00
Renumber the lang items correctly Also add a test to help prevent this from getting out of sync again. 2013-09-18 03:37:34 -05:00			// error-pattern:requires `start` lang_item

			`fn main() {}`