Rust Custom derive: "Macros 1.1" Minimal dummy custom derive
Example
Cargo.toml:
[package] name = "customderive" version = "0.1.0" [lib] proc-macro=true
src/lib.rs:
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro_derive(Dummy)]
pub fn qqq(input: TokenStream) -> TokenStream {
"".parse().unwrap()
}
examples/hello.rs
#[macro_use]
extern crate customderive;
#[derive(Dummy)]
struct Qqq;
fn main(){}
