File: extern-methods.rs

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rustc 1.87.0%2Bdfsg1-1
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//@ run-pass
//@ only-x86

trait A {
    extern "fastcall" fn test1(i: i32);
    extern "C" fn test2(i: i32);
}

struct S;
impl S {
    extern "stdcall" fn test3(i: i32) {
        assert_eq!(i, 3);
    }
}

impl A for S {
    extern "fastcall" fn test1(i: i32) {
        assert_eq!(i, 1);
    }
    extern "C" fn test2(i: i32) {
        assert_eq!(i, 2);
    }
}

fn main() {
    <S as A>::test1(1);
    <S as A>::test2(2);
    S::test3(3);
}