20 lines
473 B
Rust
20 lines
473 B
Rust
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// error-pattern: vtable pointer does not have permission
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#![feature(ptr_metadata)]
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trait Foo {}
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impl Foo for u32 {}
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fn uwu(thin: *const (), meta: &'static ()) -> *const dyn Foo {
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core::ptr::from_raw_parts(thin, unsafe { core::mem::transmute(meta) })
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}
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fn main() {
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unsafe {
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let orig = 1_u32;
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let x = &orig as &dyn Foo;
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let (ptr, meta) = (x as *const dyn Foo).to_raw_parts();
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let _ = uwu(ptr, core::mem::transmute(meta));
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}
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}
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