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use std::ops::Deref;
struct Obj<F> where F: FnMut() -> u32 {
fn_ptr: fn() -> (),
closure: F,
}
struct C {
c_fn_ptr: fn() -> (),
}
struct D(C);
impl Deref for D {
type Target = C;
fn deref(&self) -> &C {
&self.0
}
}
fn empty() {}
fn main() {
let o = Obj { fn_ptr: empty, closure: || 42 };
let p = &o;
p.closure(); //~ ERROR no method named `closure` found
let q = &p;
q.fn_ptr(); //~ ERROR no method named `fn_ptr` found
let r = D(C { c_fn_ptr: empty });
let s = &r;
s.c_fn_ptr(); //~ ERROR no method named `c_fn_ptr` found
}
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