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41 lines
727 B
Rust
41 lines
727 B
Rust
// run-pass
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// needs-unwind
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use std::panic;
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impl<'a> panic::UnwindSafe for Foo<'a> {}
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impl<'a> panic::RefUnwindSafe for Foo<'a> {}
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struct Foo<'a>(&'a mut bool);
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impl<'a> Drop for Foo<'a> {
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fn drop(&mut self) {
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*self.0 = true;
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}
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}
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fn f<T: FnOnce()>(t: T) {
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t()
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}
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fn main() {
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let mut ran_drop = false;
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{
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let x = Foo(&mut ran_drop);
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let x = move || { let _ = x; };
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f(x);
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}
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assert!(ran_drop);
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let mut ran_drop = false;
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{
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let x = Foo(&mut ran_drop);
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let result = panic::catch_unwind(move || {
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let x = move || { let _ = x; panic!() };
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f(x);
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});
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assert!(result.is_err());
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}
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assert!(ran_drop);
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}
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