mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-01 19:23:50 +00:00
29 lines
587 B
Rust
29 lines
587 B
Rust
// force-host
|
|
// no-prefer-dynamic
|
|
|
|
#![crate_type = "proc-macro"]
|
|
|
|
extern crate proc_macro;
|
|
|
|
use proc_macro::TokenStream;
|
|
|
|
#[proc_macro_attribute]
|
|
pub fn attr_with_args(args: TokenStream, input: TokenStream) -> TokenStream {
|
|
let args = args.to_string();
|
|
|
|
assert_eq!(args, r#"text = "Hello, world!""#);
|
|
|
|
let input = input.to_string();
|
|
|
|
assert_eq!(input, "fn foo() {}");
|
|
|
|
r#"
|
|
fn foo() -> &'static str { "Hello, world!" }
|
|
"#.parse().unwrap()
|
|
}
|
|
|
|
#[proc_macro_attribute]
|
|
pub fn identity(attr_args: TokenStream, _: TokenStream) -> TokenStream {
|
|
attr_args
|
|
}
|