makepad/libs/relax/compiler/tests/closure_arg_projection_infer.rs
Admin b22a714840 makepad run: the Rust JIT (libs/relax) and makepad-remote
The JIT that runs makepad apps from source: lexer, front end, type checker,
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warm/cold caches keyed by compiler stamp, provided crates bound late,
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`makepad`, MAKEPAD_RUN_* env, ~/.makepad-run); libs/relax stays the internal
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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-13 12:26:21 +02:00

22 lines
1,006 B
Rust

struct S(u32);
fn offer(out: &mut Vec<S>, s: Option<S>) { if let Some(s) = s { out.push(s) } }
fn offer_reach<T>(out: &mut Vec<S>, ranked: impl IntoIterator<Item = (f64, T)>, tol: f64, mut chip: impl FnMut(T) -> Option<S>) {
for (d, item) in ranked { if d > tol { break; } offer(out, chip(item)); }
}
fn ranked(found: Vec<(f64, usize, Vec<u32>)>) -> impl Iterator<Item = (f64, (usize, Vec<u32>))> {
found.into_iter().map(|(d, p, s)| (d, (p, s)))
}
fn chip(scheme: &[u32], label: String) -> Option<S> { Some(S(scheme.len() as u32 + label.len() as u32)) }
fn main() {
let mut out = Vec::new();
offer_reach(&mut out, ranked(vec![(1.0, 0, vec![1, 2])]), 2.0, |(_, scheme)| chip(&scheme, String::new()));
let named: Vec<(f64, (String, Vec<u32>))> = vec![(0.5, ("a".to_string(), vec![3]))];
offer_reach(&mut out, named, 2.0, |(label, scheme)| chip(&scheme, label));
assert_eq!(out.len(), 2);
println!("{}", out.len());
}
#[test]
fn closure_arg_projection_infer() {
main();
}