b22a714840
The JIT that runs makepad apps from source: lexer, front end, type checker, lazy borrow checker (Gandalf; `--check-first` opts in), codegen, session and warm/cold caches keyed by compiler stamp, provided crates bound late, startup images, live patching. User-facing name is `makepad run` (binary `makepad`, MAKEPAD_RUN_* env, ~/.makepad-run); libs/relax stays the internal library name. `makepad check` reports rustc-style diagnostics with rustc error codes and checks a whole workspace (`--workspace`). Runs on macOS, Linux, Windows and Android. makepad-remote: one tool schema for apps and the WM (app/1): grabs, captures, traces, frame profiles and tweaks. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
37 lines
1 KiB
Rust
37 lines
1 KiB
Rust
// A fn item called behind references (map_build's par_map_reduce: `identity: &ID` with
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// ID = `Vec::new` / `NodePass::default`, called as `identity()` in a scoped thread): rustc's
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// `<&F as Fn>::call` forwards to the item. Relax refused it ("unsupported call through a pointer").
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// rustc prints the same lines.
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#[derive(Default, Debug)]
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struct Pass {
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n: u32,
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}
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fn fold<ID, T>(identity: ID, k: u32) -> Vec<T>
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where
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ID: Fn() -> T + Sync,
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T: Send,
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{
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std::thread::scope(|scope| {
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let identity = &identity;
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let hs: Vec<_> = (0..k).map(|_| scope.spawn(move || identity())).collect();
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hs.into_iter().map(|h| h.join().unwrap()).collect()
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})
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}
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fn call_twice<F: Fn() -> u32>(f: &&F) -> u32 {
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f() + (**f)()
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}
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fn seven() -> u32 {
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7
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}
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#[test]
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fn fn_item_by_ref() {
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let v: Vec<Vec<u8>> = fold(Vec::new, 3);
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println!("| vec_new {:?}", v);
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let p: Vec<Pass> = fold(Pass::default, 2);
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println!("| default {:?}", p.iter().map(|x| x.n).collect::<Vec<_>>());
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println!("| twice {}", call_twice(&&seven));
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}
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