| #![warn(unused_attributes)] |
| |
| // Tests that placing the #[no_mangle] attribute on a foreign fn or static emits |
| // a specialized warning. |
| // The previous warning only talks about a "function or static" but foreign fns/statics |
| // are also not allowed to have #[no_mangle] |
| |
| //@ build-pass |
| |
| extern "C" { |
| #[no_mangle] |
| //~^ WARNING `#[no_mangle]` has no effect on a foreign static |
| //~^^ WARNING this was previously accepted by the compiler |
| pub static FOO: u8; |
| |
| #[no_mangle] |
| //~^ WARNING `#[no_mangle]` has no effect on a foreign function |
| //~^^ WARNING this was previously accepted by the compiler |
| pub fn bar(); |
| } |
| |
| fn no_new_warn() { |
| // Should emit the generic "not a function or static" warning |
| #[no_mangle] |
| //~^ WARNING attribute should be applied to a free function, impl method or static |
| //~^^ WARNING this was previously accepted by the compiler |
| let x = 0_u8; |
| } |
| |
| fn main() {} |
