39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
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// Copyright 2017 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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#![feature(proc_macro)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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use proc_macro::*;
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#[proc_macro]
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pub fn invalid_punct(_: TokenStream) -> TokenStream {
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TokenTree::from(Punct::new('`', Spacing::Alone)).into()
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}
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#[proc_macro]
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pub fn invalid_ident(_: TokenStream) -> TokenStream {
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TokenTree::from(Ident::new("*", Span::call_site())).into()
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}
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#[proc_macro]
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pub fn invalid_raw_ident(_: TokenStream) -> TokenStream {
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TokenTree::from(Ident::new_raw("self", Span::call_site())).into()
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}
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#[proc_macro]
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pub fn lexer_failure(_: TokenStream) -> TokenStream {
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"a b ) c".parse().expect("parsing failed without panic")
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}
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