rust/tests/ui/issues/issue-42453.rs

//@ run-pass
#![allow(dead_code)]
#![allow(non_camel_case_types)]

#[derive(Debug)]
struct builder;

fn main() {

}
[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives 2024-02-16 20:02:50 +00:00			`//@ run-pass`
Add `#![allow(..)]` as necessary to get re-migrated run-pass tests compiling with clean stderr again. Most were added mechanically. 2018-09-25 23:51:35 +02:00			`#![allow(dead_code)]`
Add `#![allow(..)]` for a slew of lints of migrated run-pass tests, to silence stderr output. 2018-08-31 15:02:01 +02:00			`#![allow(non_camel_case_types)]`

Fix hygene issue when deriving Debug The code for several of the core traits doesn't use hygenic macros. This isn't a problem, except for the Debug trait, which is the only one that uses a variable, named "builder". Variables can't share names with unit structs, so attempting to [derive(Debug)] on any type while a unit struct with the name "builder" was in scope would result in an error. This commit just changes the name of the variable to "__debug_trait_builder", because I couldn't figure out how to get a list of all unit structs in-scope from within the derive expansion function. If someone wants to have a unit struct with the exact name "__debug_trait_builder", they'll just have to do it without a [derive(Debug)]. 2018-03-11 10:03:23 -04:00			`#[derive(Debug)]`
			`struct builder;`

			`fn main() {`

			`}`