src/test/compile-fail-fulldeps/rustc-macro/attribute.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![crate_type = "rustc-macro"]
  12 #![feature(rustc_macro)]
  13
  14 extern crate rustc_macro;
  15
  16 #[rustc_macro_derive]
  17 //~^ ERROR: attribute must be of form: #[rustc_macro_derive(TraitName)]
  18 pub fn foo1(input: rustc_macro::TokenStream) -> rustc_macro::TokenStream {
  19     input
  20 }
  21
  22 #[rustc_macro_derive = "foo"]
  23 //~^ ERROR: attribute must be of form: #[rustc_macro_derive(TraitName)]
  24 pub fn foo2(input: rustc_macro::TokenStream) -> rustc_macro::TokenStream {
  25     input
  26 }
  27
  28 #[rustc_macro_derive(
  29     a = "b"
  30 )]
  31 //~^^ ERROR: must only be one word
  32 pub fn foo3(input: rustc_macro::TokenStream) -> rustc_macro::TokenStream {
  33     input
  34 }
  35
  36 #[rustc_macro_derive(b, c)]
  37 //~^ ERROR: attribute must only have one argument
  38 pub fn foo4(input: rustc_macro::TokenStream) -> rustc_macro::TokenStream {
  39     input
  40 }
  41
  42 #[rustc_macro_derive(d(e))]
  43 //~^ ERROR: must only be one word
  44 pub fn foo5(input: rustc_macro::TokenStream) -> rustc_macro::TokenStream {
  45     input
  46 }