Expand description
TryFrom<&str>/AsRef<str> leaf
This wraps TryFrom<&str> and AsRef<str> into a Tree* leaf.
TreeAny is implemented but denied access at runtime.
It is especially useful to support enum variant switching using strum.
Inner enum variant field access can be implemented using defer.
use miniconf::{json_core::set, str_leaf, Tree};
#[derive(Tree, strum::AsRefStr, strum::EnumString)]
enum En {
A(i32),
B(f32),
}
#[derive(Tree)]
struct S {
#[tree(rename="t", with=str_leaf, defer=self.e, typ="En")]
_t: (),
e: En,
}
let mut s = S {
_t: (),
e: En::A(9),
};
set(&mut s, "/t", b"\"B\"").unwrap();
set(&mut s, "/e/B", b"1.2").unwrap();
assert!(matches!(s.e, En::B(1.2)));