rust/tests/ui/proc-macro/no-macro-use-attr.rs

// aux-build:test-macros.rs

#![feature(rustc_attrs)]
#![warn(unused_extern_crates)]

extern crate test_macros;
//~^ WARN unused extern crate

#[rustc_error]
fn main() {} //~ ERROR fatal error triggered by #[rustc_error]
tests: Centralize proc macros commonly used for testing 2019-05-21 22:09:58 +00:00			`// aux-build:test-macros.rs`
rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 20:13:15 +00:00
Support `#[macro_reexport]`ing custom derives. 2016-11-05 20:30:40 +00:00			`#![feature(rustc_attrs)]`
Stabilize `use_extern_macros` 2018-05-14 00:22:52 +00:00			`#![warn(unused_extern_crates)]`
Support `#[macro_reexport]`ing custom derives. 2016-11-05 20:30:40 +00:00
tests: Centralize proc macros commonly used for testing 2019-05-21 22:09:58 +00:00			`extern crate test_macros;`
Stabilize `use_extern_macros` 2018-05-14 00:22:52 +00:00			`//~^ WARN unused extern crate`
Make #[derive(Anything)] into sugar for #[derive_Anything] This is a hack, but I don't think we can do much better as long as `derive` is running at the syntax expansion phase. If the custom_derive feature gate is enabled, this works with user-defined traits and syntax extensions. Without the gate, you can't use e.g. #[derive_Clone] directly, so this does not change the stable language. This commit also cleans up the deriving code somewhat, and forbids some previously-meaningless attribute syntax. For this reason it's technically a [breaking-change] 2015-03-06 21:15:54 +00:00
Support `#[macro_reexport]`ing custom derives. 2016-11-05 20:30:40 +00:00			`#[rustc_error]`
rewrote error messages for #[rustc_error] 2019-11-05 21:42:23 +00:00			`fn main() {} //~ ERROR fatal error triggered by #[rustc_error]`