Source code
Revision control
Copy as Markdown
Other Tools
use darling::{FromDeriveInput, FromMeta};
use syn::parse_quote;
#[derive(FromDeriveInput)]
#[darling(attributes(hello))]
#[allow(dead_code)]
struct Lorem {
ident: syn::Ident,
ipsum: Ipsum,
}
#[derive(FromMeta)]
struct Ipsum {
#[darling(multiple)]
dolor: Vec<String>,
}
#[test]
fn expand_many() {
let di = parse_quote! {
#[hello(ipsum(dolor = "Hello", dolor = "World"))]
pub struct Baz;
};
let lorem: Lorem = Lorem::from_derive_input(&di).unwrap();
assert_eq!(
lorem.ipsum.dolor,
vec!["Hello".to_string(), "World".to_string()]
);
}