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22 lines
547 B
Rust
22 lines
547 B
Rust
// force-host
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// no-prefer-dynamic
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#![crate_type = "proc-macro"]
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#![feature(proc_macro_quote)]
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extern crate proc_macro;
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use proc_macro::{TokenStream, quote};
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// This macro is not very interesting, but it does contain delimited tokens with
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// no content - `()` and `{}` - which has caused problems in the past.
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// Also, it tests that we can escape `$` via `$$`.
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#[proc_macro]
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pub fn hello(_: TokenStream) -> TokenStream {
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quote!({
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fn hello() {}
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macro_rules! m { ($$($$t:tt)*) => { $$($$t)* } }
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m!(hello());
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})
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}
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