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//! Check for the correct processing of ExprGroups in types
//!
//! They occur when the types is passed in as a macro_rules argument like here.
macro_rules! t {
($($param:ident : $ty:ty),*) => {
#[derive(Default)]
#[serde_with_macros::apply(
crate = "serde_with_macros",
Option => #[serde(skip_serializing_if = "Option::is_none")],
)]
#[derive(serde::Serialize)]
struct Data {
a: Option<String>,
b: Option<u64>,
c: Option<String>,
$(pub $param: $ty),*
}
}
}
t!(d: Option<bool>);
#[test]
fn t() {
let expected = r#"{}"#;
let data: Data = Default::default();
assert_eq!(expected, serde_json::to_string(&data).unwrap());
}