mirror of
https://github.com/rust-lang/rust
synced 2024-10-01 14:25:08 +00:00
23 lines
527 B
Rust
23 lines
527 B
Rust
// force-host
|
|
// no-prefer-dynamic
|
|
|
|
#![crate_type = "proc-macro"]
|
|
|
|
extern crate proc_macro;
|
|
|
|
pub mod a { //~ `proc-macro` crate types currently cannot export any items
|
|
use proc_macro::TokenStream;
|
|
|
|
#[proc_macro_derive(B)]
|
|
pub fn bar(a: TokenStream) -> TokenStream {
|
|
//~^ ERROR: must currently reside in the root of the crate
|
|
a
|
|
}
|
|
}
|
|
|
|
#[proc_macro_derive(B)]
|
|
fn bar(a: proc_macro::TokenStream) -> proc_macro::TokenStream {
|
|
//~^ ERROR: functions tagged with `#[proc_macro_derive]` must be `pub`
|
|
a
|
|
}
|