| #### Note: this error code is no longer emitted by the compiler | |
| This is because it was too specific to the `inline` attribute. | |
| Similar diagnostics occur for other attributes too. | |
| The example here will now emit `E0539` | |
| Erroneous code example: | |
| ```compile_fail,E0539 | |
| #[inline(unknown)] // error: invalid argument | |
| pub fn something() {} | |
| fn main() {} | |
| ``` | |
| The `inline` attribute only supports two arguments: | |
| * always | |
| * never | |
| All other arguments given to the `inline` attribute will return this error. | |
| Example: | |
| ``` | |
| #[inline(never)] // ok! | |
| pub fn something() {} | |
| fn main() {} | |
| ``` | |
| For more information see the [`inline` Attribute][inline-attribute] section | |
| of the Reference. | |
| [inline-attribute]: https://doc.rust-lang.org/reference/attributes/codegen.html#the-inline-attribute |