diff options
Diffstat (limited to 'tests/ui/proc-macro/auxiliary/nonterminal-recollect-attr.rs')
-rw-r--r-- | tests/ui/proc-macro/auxiliary/nonterminal-recollect-attr.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/auxiliary/nonterminal-recollect-attr.rs b/tests/ui/proc-macro/auxiliary/nonterminal-recollect-attr.rs new file mode 100644 index 000000000..ea5ff4665 --- /dev/null +++ b/tests/ui/proc-macro/auxiliary/nonterminal-recollect-attr.rs @@ -0,0 +1,25 @@ +// force-host +// no-prefer-dynamic + +#![crate_type = "proc-macro"] +#![feature(proc_macro_quote)] + +extern crate proc_macro; +use proc_macro::{TokenStream, quote}; + +#[proc_macro_attribute] +pub fn first_attr(_: TokenStream, input: TokenStream) -> TokenStream { + let recollected: TokenStream = input.into_iter().collect(); + println!("First recollected: {:#?}", recollected); + quote! { + #[second_attr] + $recollected + } +} + +#[proc_macro_attribute] +pub fn second_attr(_: TokenStream, input: TokenStream) -> TokenStream { + let recollected: TokenStream = input.into_iter().collect(); + println!("Second recollected: {:#?}", recollected); + TokenStream::new() +} |