| #![feature(custom_attribute)] | 
 | #![feature(raw_identifiers)] | 
 | #![feature(extern_types)] | 
 | #![allow(invalid_type_param_default)] | 
 | #![allow(unused_attributes)] | 
 |  | 
 | use r#foo as r#alias_foo; | 
 |  | 
 | // https://github.com/rust-lang/rustfmt/issues/3837 | 
 | pub(crate) static r#break: &'static str = "foo"; | 
 |  | 
 | fn main() { | 
 |     #[r#attr] | 
 |     r#foo::r#bar(); | 
 |  | 
 |     let r#local = r#Struct { r#field: () }; | 
 |     r#local.r#field = 1; | 
 |     r#foo.r#barr(); | 
 |     let r#async = r#foo(r#local); | 
 |     r#macro!(); | 
 |  | 
 |     if let r#sub_pat @ r#Foo(_) = r#Foo(3) {} | 
 |  | 
 |     match r#async { | 
 |         r#Foo | r#Bar => r#foo(), | 
 |     } | 
 | } | 
 |  | 
 | fn r#bar<'a, r#T>(r#x: &'a r#T) {} | 
 |  | 
 | mod r#foo { | 
 |     pub fn r#bar() {} | 
 | } | 
 |  | 
 | enum r#Foo { | 
 |     r#Bar {}, | 
 | } | 
 |  | 
 | struct r#Struct { | 
 |     r#field: r#FieldType, | 
 | } | 
 |  | 
 | trait r#Trait { | 
 |     type r#Type; | 
 | } | 
 |  | 
 | impl r#Trait for r#Impl { | 
 |     type r#Type = r#u32; | 
 |     fn r#xxx(r#fjio: r#u32) {} | 
 | } | 
 |  | 
 | extern "C" { | 
 |     type r#ccc; | 
 |     static r#static_val: u32; | 
 | } | 
 |  | 
 | macro_rules! r#macro { | 
 |     () => {}; | 
 | } | 
 |  | 
 | macro_rules! foo { | 
 |     ($x:expr) => { | 
 |         let r#catch = $x + 1; | 
 |         println!("{}", r#catch); | 
 |     }; | 
 | } |