// run-pass | |
#![allow(unused_imports)] | |
#![allow(unused_must_use)] | |
// pretty-expanded FIXME #23616 | |
#![feature(rustc_private)] | |
extern crate serialize; | |
use std::fmt; | |
use serialize::{Encoder, Encodable}; | |
use serialize::json; | |
struct Foo<T: Encodable> { | |
v: T, | |
} | |
impl<T: Encodable> Drop for Foo<T> { | |
fn drop(&mut self) { | |
json::encode(&self.v); | |
} | |
} | |
fn main() { | |
let _ = Foo { v: 10 }; | |
} |