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27 lines
758 B
Rust
27 lines
758 B
Rust
// An unknown destination type should be gracefully handled.
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#![crate_type = "lib"]
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#![feature(transmutability)]
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#![allow(incomplete_features)]
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mod assert {
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use std::mem::TransmuteFrom;
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pub fn is_transmutable<Src, Dst>()
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where
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Dst: TransmuteFrom<Src>
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{}
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}
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fn should_gracefully_handle_unknown_dst_field() {
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#[repr(C)] struct Src;
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#[repr(C)] struct Dst(Missing); //~ ERROR cannot find type
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assert::is_transmutable::<Src, Dst>(); //~ ERROR cannot be safely transmuted
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}
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fn should_gracefully_handle_unknown_dst_ref_field() {
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#[repr(C)] struct Src(&'static Src);
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#[repr(C)] struct Dst(&'static Missing); //~ ERROR cannot find type
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assert::is_transmutable::<Src, Dst>(); //~ ERROR cannot be safely transmuted
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}
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