4 #![crate_type = "proc-macro"]
6 extern crate proc_macro;
9 #[proc_macro_derive] //~ ERROR malformed `proc_macro_derive` attribute
10 pub fn foo1(input: TokenStream) -> TokenStream { input }
12 #[proc_macro_derive = ""] //~ ERROR malformed `proc_macro_derive` attribute
13 pub fn foo2(input: TokenStream) -> TokenStream { input }
15 #[proc_macro_derive(d3, a, b)]
16 //~^ ERROR attribute must have either one or two arguments
17 pub fn foo3(input: TokenStream) -> TokenStream { input }
19 #[proc_macro_derive(d4, attributes(a), b)]
20 //~^ ERROR attribute must have either one or two arguments
21 pub fn foo4(input: TokenStream) -> TokenStream { input }
23 #[proc_macro_derive("a")]
24 //~^ ERROR: not a meta item
25 pub fn foo5(input: TokenStream) -> TokenStream { input }
27 #[proc_macro_derive(d6 = "")]
28 //~^ ERROR: must only be one word
29 pub fn foo6(input: TokenStream) -> TokenStream { input }
31 #[proc_macro_derive(m::d7)]
32 //~^ ERROR: must only be one word
33 pub fn foo7(input: TokenStream) -> TokenStream { input }
35 #[proc_macro_derive(d8(a))]
36 //~^ ERROR: must only be one word
37 pub fn foo8(input: TokenStream) -> TokenStream { input }
39 #[proc_macro_derive(self)]
40 //~^ ERROR: `self` cannot be a name of derive macro
41 pub fn foo9(input: TokenStream) -> TokenStream { input }
43 #[proc_macro_derive(PartialEq)] // OK
44 pub fn foo10(input: TokenStream) -> TokenStream { input }
46 #[proc_macro_derive(d11, a)]
47 //~^ ERROR: second argument must be `attributes`
48 //~| ERROR: attribute must be of form: `attributes(foo, bar)`
49 pub fn foo11(input: TokenStream) -> TokenStream { input }
51 #[proc_macro_derive(d12, attributes)]
52 //~^ ERROR: attribute must be of form: `attributes(foo, bar)`
53 pub fn foo12(input: TokenStream) -> TokenStream { input }
55 #[proc_macro_derive(d13, attributes("a"))]
56 //~^ ERROR: not a meta item
57 pub fn foo13(input: TokenStream) -> TokenStream { input }
59 #[proc_macro_derive(d14, attributes(a = ""))]
60 //~^ ERROR: must only be one word
61 pub fn foo14(input: TokenStream) -> TokenStream { input }
63 #[proc_macro_derive(d15, attributes(m::a))]
64 //~^ ERROR: must only be one word
65 pub fn foo15(input: TokenStream) -> TokenStream { input }
67 #[proc_macro_derive(d16, attributes(a(b)))]
68 //~^ ERROR: must only be one word
69 pub fn foo16(input: TokenStream) -> TokenStream { input }
71 #[proc_macro_derive(d17, attributes(self))]
72 //~^ ERROR: `self` cannot be a name of derive helper attribute
73 pub fn foo17(input: TokenStream) -> TokenStream { input }