My Magnificent Hack

hacky-hacky.rs

enum opaque {}

trait thing {
    pub fn foo(&self);
}

impl thing for opaque {
    pub fn foo(&self) {
        unsafe {
            let o : *[int,..8] = std::cast::transmute(self);
            println(fmt!("%?", *o));
        }
    }
}

fn main() {
    unsafe {
        let o = test();
        o.foo();
    }
}

unsafe fn test() -> &'static thing {
    let src = [987654321,..8];
    let a = std::libc::malloc(128 as std::libc::size_t) as *mut [int,..8];
    let srcp = &src;

    std::ptr::copy_memory(a, srcp, 1);

    println(fmt!("%?", a));

    let o : &'static opaque = std::cast::transmute(a);

    o as &thing
}