rust/tests/ui/proc-macro/custom-attr-only-one-derive.rs

// run-pass
// aux-build:custom-attr-only-one-derive.rs

#![feature(rust_2018_preview)]

#[macro_use]
extern crate custom_attr_only_one_derive;

#[derive(Bar, Foo)]
#[custom = "test"]
pub enum A {
    B,
    C,
}

fn main() {}
tests: Add missing run-pass annotations 2019-07-26 21:54:25 +00:00			`// run-pass`
rustc: Search all derives for inert attributes This commit fixes an apparent mistake in librustc_resolve where when the `proc_macro` feature is enabled (or `rust_2018_preview`) the resolution of custom attributes for custom derive was tweaked. Previously when an attribute failed to resolve it was attempted to locate if there is a custom derive also in scope which declares the attribute, but only the first custom derive directive was search. Instead this commit fixes the loop to search all custom derive invocations looking for any which register the attribute in question. Closes #52219 2018-07-10 21:04:41 +00:00			`// aux-build:custom-attr-only-one-derive.rs`

			`#![feature(rust_2018_preview)]`

			`#[macro_use]`
			`extern crate custom_attr_only_one_derive;`

			`#[derive(Bar, Foo)]`
			`#[custom = "test"]`
			`pub enum A {`
			`B,`
			`C,`
			`}`

			`fn main() {}`