// force-host // no-prefer-dynamic // compile-flags: --crate-type proc-macro #![crate_type="proc-macro"] #![crate_name="some_macros"] extern crate proc_macro; use proc_macro::TokenStream; macro_rules! make_attr_macro { ($name:ident) => { /// Generated doc comment #[proc_macro_attribute] pub fn $name(args: TokenStream, input: TokenStream) -> TokenStream { panic!() } } } make_attr_macro!(first_attr); make_attr_macro!(second_attr); /// a proc-macro that swallows its input and does nothing. #[proc_macro] pub fn some_proc_macro(_input: TokenStream) -> TokenStream { TokenStream::new() } /// a proc-macro attribute that passes its item through verbatim. #[proc_macro_attribute] pub fn some_proc_attr(_attr: TokenStream, item: TokenStream) -> TokenStream { item } /// a derive attribute that adds nothing to its input. #[proc_macro_derive(SomeDerive)] pub fn some_derive(_item: TokenStream) -> TokenStream { TokenStream::new() } /// Doc comment from the original crate #[proc_macro] pub fn reexported_macro(_input: TokenStream) -> TokenStream { TokenStream::new() }