26 lines
468 B
Rust
26 lines
468 B
Rust
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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// this closure never by val uses its captures
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// so it's basically a fn(&self)
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// the shim used to not drop the `x`
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let x = move || { let _val = x; };
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f(x);
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}
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assert!(ran_drop);
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}
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