868de8e76b
This fixes some THIR unsafety checking errors not being emitted for let expressions in these situations.
14 lines
462 B
Rust
14 lines
462 B
Rust
// revisions: mirunsafeck thirunsafeck
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// [thirunsafeck]compile-flags: -Z thir-unsafeck
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#![feature(rustc_attrs)]
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#[rustc_layout_scalar_valid_range_start(1)]
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#[repr(transparent)]
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pub(crate) struct NonZero<T>(pub(crate) T);
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fn main() {
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let mut x = unsafe { NonZero(1) };
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let y = &mut x.0; //~ ERROR mutation of layout constrained field is unsafe
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if let Some(NonZero(ref mut y)) = Some(x) {} //~ ERROR mutation of layout constrained field is unsafe
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}
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