47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![crate_type = "proc-macro"]
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#![feature(proc_macro)]
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extern crate proc_macro;
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#[proc_macro_derive]
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//~^ ERROR: attribute must be of form: #[proc_macro_derive(TraitName)]
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pub fn foo1(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
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input
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}
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#[proc_macro_derive = "foo"]
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//~^ ERROR: attribute must be of form: #[proc_macro_derive(TraitName)]
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pub fn foo2(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
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input
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}
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#[proc_macro_derive(
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a = "b"
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)]
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//~^^ ERROR: must only be one word
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pub fn foo3(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
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input
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}
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#[proc_macro_derive(b, c)]
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//~^ ERROR: attribute must only have one argument
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pub fn foo4(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
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input
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}
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#[proc_macro_derive(d(e))]
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//~^ ERROR: must only be one word
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pub fn foo5(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
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input
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}
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