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>
9 lines
281 B
Rust
9 lines
281 B
Rust
use std::any::Any;
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use std::rc::Rc;
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#[test]
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fn closure_output_from_expected_option() {
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let boxed: Box<dyn Any> = Box::new(42u32);
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let value: Option<Rc<dyn Any>> = Some(boxed).map(|value| Rc::from(value));
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assert_eq!(value.unwrap().downcast_ref::<u32>(), Some(&42));
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}
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