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#![feature(macro_metavar_expr_concat)]
macro_rules! one_rep {
( $($a:ident)* ) => {
$(
const ${concat($a, Z)}: i32 = 3;
)*
};
}
macro_rules! issue_128346 {
( $($a:ident)* ) => {
A(
const ${concat($a, Z)}: i32 = 3;
//~^ ERROR invalid syntax
)*
};
}
macro_rules! issue_131393 {
($t:ident $($en:ident)?) => {
read::<${concat($t, $en)}>()
//~^ ERROR invalid syntax
//~| ERROR invalid syntax
}
}
fn main() {
one_rep!(A B C);
assert_eq!(AZ, 3);
assert_eq!(BZ, 3);
assert_eq!(CZ, 3);
issue_128346!(A B C);
issue_131393!(u8);
issue_131393!(u16 le);
}
|
