31 lines
785 B
Rust
31 lines
785 B
Rust
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// check-pass
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#![allow(improper_ctypes_definitions)]
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#![feature(unsized_tuple_coercion)]
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#![feature(unsized_fn_params)]
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#![crate_type = "lib"]
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// Check that computing the fn abi for `bad`, with a external ABI fn ptr that is not FFI-safe, does
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// not ICE.
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pub fn bad(f: extern "C" fn([u8])) {}
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// While these get accepted, they should also not ICE.
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// (If we ever reject them, remove them from this test to ensure the `bad` above
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// is still tested. Do *not* make this a check/build-fail test.)
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pub extern "C" fn declare_bad(_x: str) {}
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#[no_mangle]
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pub extern "system" fn declare_more_bad(f: dyn FnOnce()) {
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}
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fn make_bad() -> extern "C" fn(([u8],)) {
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todo!()
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}
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pub fn call_bad() {
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let f = make_bad();
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let slice: Box<([u8],)> = Box::new(([1; 8],));
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f(*slice);
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}
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