rust/src/test/ui/proc-macro/attr-invalid-exprs.rs
Esteban Küber 24160171e4 Tweak macro parse errors when reaching EOF during macro call parse
- Add detail on origin of current parser when reaching EOF and stop
  saying "found <eof>" and point at the end of macro calls
- Handle empty `cfg_attr` attribute
- Reword empty `derive` attribute error
2019-05-24 11:49:33 -07:00

28 lines
656 B
Rust

// aux-build:attr-stmt-expr.rs
//! Attributes producing expressions in invalid locations
#![feature(stmt_expr_attributes, proc_macro_hygiene)]
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!"
};
}