This repository has been archived on 2026-08-31. You can view files and clone it. You cannot open issues or pull requests or push a commit.
Files
donglora/vendor/darling/examples/expr_with.rs
T
swaitsandClaude Opus 4.6 3102fc747a feat: add display UI with splash screen, dashboard, and RSSI sparkline
Implement full SSD1306 OLED display support:
- Splash screen on boot (1.5s) with project name, version, board
- Dashboard showing radio state, config, counters, RSSI/SNR
- RSSI history sparkline (64-sample ring buffer, 2px-wide bars)
- DisplayOn/DisplayOff host commands routed via dedicated channel
- Pure render functions against generic DrawTarget (no hardware coupling)
- Display on/off control bypasses radio task entirely

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 20:42:54 -06:00

27 lines
738 B
Rust

use darling::{util::parse_expr, FromDeriveInput, FromMeta};
use syn::{parse_quote, Expr};
#[derive(FromDeriveInput)]
#[darling(attributes(demo))]
pub struct Receiver {
#[darling(with = parse_expr::preserve_str_literal, map = Some)]
example1: Option<Expr>,
#[darling(
// A closure can be used in lieu of a path.
with = |m| Ok(String::from_meta(m)?.to_uppercase()),
default
)]
example2: String,
}
fn main() {
let input = Receiver::from_derive_input(&parse_quote! {
#[demo(example1 = test::path, example2 = "hello")]
struct Example;
})
.unwrap();
assert_eq!(input.example1, Some(parse_quote!(test::path)));
assert_eq!(input.example2, "HELLO".to_string());
}