24 lines
620 B
Rust
24 lines
620 B
Rust
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#![feature(const_trait_impl)]
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#![feature(const_fn_trait_bound)]
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#![feature(const_mut_refs)]
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#![feature(const_panic)]
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struct S;
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impl const Drop for S {
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fn drop(&mut self) {
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// NB: There is no way to tell that a const destructor is ran,
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// because even if we can operate on mutable variables, it will
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// not be reflected because everything is `const`. So we panic
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// here, attempting to make the CTFE engine error.
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panic!("much const drop")
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//~^ ERROR evaluation of constant value failed
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}
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}
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const fn a<T: ~const Drop>(_: T) {}
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const _: () = a(S);
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fn main() {}
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