src/test/ui/consts/miri_unleashed/abi-mismatch.rs

   1 // Checks that we report ABI mismatches for "const extern fn"
   2 // compile-flags: -Z unleash-the-miri-inside-of-you
   3
   4 #![feature(const_extern_fn)]
   5
   6 const extern "C" fn c_fn() {}
   7
   8 const fn call_rust_fn(my_fn: extern "Rust" fn()) {
   9     my_fn();
  10     //~^ ERROR could not evaluate static initializer
  11     //~| NOTE calling a function with calling convention C using calling convention Rust
  12     //~| NOTE inside `call_rust_fn`
  13 }
  14
  15 static VAL: () = call_rust_fn(unsafe { std::mem::transmute(c_fn as extern "C" fn()) });
  16 //~^ NOTE inside `VAL`
  17
  18 fn main() {}