mirror of https://github.com/rust-lang/rust
40 lines
1.2 KiB
Rust
40 lines
1.2 KiB
Rust
//@ run-pass
|
|
//@ aux-build:dropck_eyepatch_extern_crate.rs
|
|
|
|
extern crate dropck_eyepatch_extern_crate as other;
|
|
|
|
use other::{Dt,Dr,Pt,Pr,St,Sr};
|
|
|
|
fn main() {
|
|
use std::cell::RefCell;
|
|
|
|
struct CheckOnDrop(RefCell<String>, &'static str);
|
|
impl Drop for CheckOnDrop {
|
|
fn drop(&mut self) { assert_eq!(*self.0.borrow(), self.1); }
|
|
}
|
|
|
|
let c_long;
|
|
let (c, dt, dr, pt, pr, st, sr)
|
|
: (CheckOnDrop, Dt<_>, Dr<_>, Pt<_, _>, Pr<_>, St<_>, Sr<_>);
|
|
c_long = CheckOnDrop(RefCell::new("c_long".to_string()),
|
|
"c_long|pr|pt|dr|dt");
|
|
c = CheckOnDrop(RefCell::new("c".to_string()),
|
|
"c");
|
|
|
|
// No error: sufficiently long-lived state can be referenced in dtors
|
|
dt = Dt("dt", &c_long.0);
|
|
dr = Dr("dr", &c_long.0);
|
|
|
|
// No error: Drop impl asserts .1 (A and &'a _) are not accessed
|
|
pt = Pt("pt", &c.0, &c_long.0);
|
|
pr = Pr("pr", &c.0, &c_long.0);
|
|
|
|
// No error: St and Sr have no destructor.
|
|
st = St("st", &c.0);
|
|
sr = Sr("sr", &c.0);
|
|
|
|
println!("{:?}", (dt.0, dr.0, pt.0, pr.0, st.0, sr.0));
|
|
assert_eq!(*c_long.0.borrow(), "c_long");
|
|
assert_eq!(*c.0.borrow(), "c");
|
|
}
|