rust/tests/ui/proc-macro/attr-invalid-exprs.rs
2023-01-11 09:32:08 +00:00

29 lines
668 B
Rust

//! Attributes producing expressions in invalid locations
// aux-build: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 token `,` and any following
let _ = {
#[no_output]
"Hello, world!"
};
let _ = {
#[duplicate]
//~^ ERROR macro expansion ignores token `,` and any following
"Hello, world!"
};
}