45 lines
848 B
Rust
45 lines
848 B
Rust
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// revisions: good1 good2 bad1 bad2
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//[good1] check-pass
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//[good2] check-pass
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use std::ops::Drop;
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struct DropMe<T: Copy>(T);
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#[cfg(good1)]
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impl<T> Drop for DropMe<T>
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where
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T: Copy + Clone,
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{
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fn drop(&mut self) {}
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}
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#[cfg(good2)]
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impl<T> Drop for DropMe<T>
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where
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T: Copy,
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[T; 1]: Copy, // Trivial bound implied by `T: Copy`
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{
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fn drop(&mut self) {}
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}
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#[cfg(bad1)]
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impl<T> Drop for DropMe<T>
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//[bad1]~^ ERROR the trait bound `T: Copy` is not satisfied
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where
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[T; 1]: Copy, // But `[T; 1]: Copy` does not imply `T: Copy`
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{
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fn drop(&mut self) {}
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//[bad1]~^ ERROR the trait bound `T: Copy` is not satisfied
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}
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#[cfg(bad2)]
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impl<T> Drop for DropMe<T>
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//[bad2]~^ ERROR the trait bound `T: Copy` is not satisfied
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{
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fn drop(&mut self) {}
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//[bad2]~^ ERROR the trait bound `T: Copy` is not satisfied
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}
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fn main() {}
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