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29 lines
808 B
Rust
29 lines
808 B
Rust
// 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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// force-host
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// no-prefer-dynamic
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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use proc_macro::TokenStream;
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#[proc_macro_derive(A)]
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pub fn foo(input: TokenStream) -> TokenStream {
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input
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}
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#[proc_macro_derive(A)] //~ ERROR the name `A` is defined multiple times
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pub fn bar(input: TokenStream) -> TokenStream {
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input
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}
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