compiler/rustc_error_codes/src/error_codes/E0498.md

   1 The `plugin` attribute was malformed.
   2
   3 Erroneous code example:
   4
   5 ```compile_fail,E0498
   6 #![feature(plugin)]
   7 #![plugin(foo(args))] // error: invalid argument
   8 #![plugin(bar="test")] // error: invalid argument
   9 ```
  10
  11 The `#[plugin]` attribute should take a single argument: the name of the plugin.
  12
  13 For example, for the plugin `foo`:
  14
  15 ```ignore (requires external plugin crate)
  16 #![feature(plugin)]
  17 #![plugin(foo)] // ok!
  18 ```
  19
  20 See the [`plugin` feature] section of the Unstable book for more details.
  21
  22 [`plugin` feature]: https://doc.rust-lang.org/nightly/unstable-book/language-features/plugin.html