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(c2rust-analyze/tests) Add a generic extern "rust-intrinsic" foreign fn` test (currently disabled as we crash on it) #1001

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Merged
merged 1 commit into from
Jul 21, 2023
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(c2rust-analyze/tests) Add a generic extern "rust-intrinsic" foreign fn` test (currently disabled as we crash on it) #1001

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1 change: 1 addition & 0 deletions c2rust-analyze/tests/analyze.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@ macro_rules! define_tests {
define_tests! {
macros,
ptr_addr_of,
rust_intrinsic,
string_literals,
string_casts,
}
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9 changes: 9 additions & 0 deletions c2rust-analyze/tests/analyze/rust_intrinsic.rs
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@@ -0,0 +1,9 @@
/// Check that `extern "rust-intrinsic"` (which can be generic) foreign `fn`s
/// like [`std::mem::transmute`] don't crash `c2rust-analyze`.
///
/// They currently do (in [`Instance::mono`] where there are generic args),
/// which is why this is `#[cfg]`ed out for now.
#[cfg(any())]
pub unsafe fn f(x: *const u8) -> *const i8 {
std::mem::transmute(x)
}