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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// aux-build:attr-stmt-expr.rs
#![feature(stmt_expr_attributes, proc_macro_hygiene)]
extern crate attr_stmt_expr;
use attr_stmt_expr::{expect_let, expect_print_stmt, expect_expr, expect_print_expr,
no_output, noop};
fn print_str(string: &'static str) {
// macros are handled a bit differently
#[expect_print_expr]
println!("{}", string)
}
fn main() {
#[expect_let]
let string = "Hello, world!";
#[expect_print_stmt]
println!("{}", string);
let _: () = {
#[no_output]
"Hello, world!"
};
let _: &'static str = #[noop] "Hello, world!";
let _: &'static str = {
#[noop] "Hello, world!"
};
#[expect_expr]
print_str("string")
}
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