1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
//! Attributes producing expressions in invalid locations
//@ proc-macro: attr-stmt-expr.rs
#![feature(proc_macro_hygiene)]
#![feature(stmt_expr_attributes)]
extern crate attr_stmt_expr;
use attr_stmt_expr::{duplicate, no_output};
fn main() {
let _ = #[no_output] "Hello, world!";
//~^ ERROR expected expression, found end of macro arguments
let _ = #[duplicate] "Hello, world!";
//~^ ERROR macro expansion ignores `,` and any tokens following
let _ = {
#[no_output]
"Hello, world!"
};
let _ = {
#[duplicate]
//~^ ERROR macro expansion ignores `,` and any tokens following
"Hello, world!"
};
}
|
