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30 lines
649 B
Rust
30 lines
649 B
Rust
#![allow(undropped_manually_drops)]
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use core::mem::ManuallyDrop;
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#[test]
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fn smoke() {
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#[derive(Clone)]
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struct TypeWithDrop;
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impl Drop for TypeWithDrop {
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fn drop(&mut self) {
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unreachable!("Should not get dropped");
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}
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}
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let x = ManuallyDrop::new(TypeWithDrop);
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drop(x);
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// also test unsizing
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let x: Box<ManuallyDrop<[TypeWithDrop]>> =
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Box::new(ManuallyDrop::new([TypeWithDrop, TypeWithDrop]));
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drop(x);
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// test clone and clone_from implementations
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let mut x = ManuallyDrop::new(TypeWithDrop);
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let y = x.clone();
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x.clone_from(&y);
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drop(x);
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drop(y);
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}
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