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macros.rs
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/
macros.rs
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//@ run-pass
#![feature(decl_macro)]
macro_rules! r#struct {
($r#struct:expr) => { $r#struct }
}
macro_rules! old_macro {
($a:expr) => {$a}
}
macro r#decl_macro($r#fn:expr) {
$r#fn
}
macro passthrough($id:ident) {
$id
}
macro_rules! test_pat_match {
(a) => { 6 };
(r#a) => { 7 };
}
pub fn main() {
r#println!("{struct}", r#struct = 1);
assert_eq!(2, r#struct!(2));
assert_eq!(3, r#old_macro!(3));
assert_eq!(4, decl_macro!(4));
let r#match = 5;
assert_eq!(5, passthrough!(r#match));
assert_eq!("r#struct", stringify!(r#struct));
assert_eq!(6, test_pat_match!(a));
assert_eq!(7, test_pat_match!(r#a));
}
// ferrocene-annotations: fls_xa7lp0zg1ol2
// Declarative Macros
//
// ferrocene-annotations: fls_7bxv8lybxm18
// Identifier Patterns
//
// ferrocene-annotations: fls_9kjpxri0axvg
// Weak Keywords