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//@ compile-flags: -Z unstable-options
#![feature(rustc_private)]
#![deny(rustc::potential_query_instability)]
extern crate rustc_data_structures;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
fn main() {
let mut x = FxHashMap::<u32, i32>::default();
for _ in x.drain() {}
//~^ ERROR using `drain` can result in unstable
for _ in x.iter() {}
//~^ ERROR using `iter`
for _ in Some(&mut x).unwrap().iter_mut() {}
//~^ ERROR using `iter_mut`
for _ in x {}
//~^ ERROR using `into_iter`
let x = FxHashMap::<u32, i32>::default();
let _ = x.keys();
//~^ ERROR using `keys` can result in unstable query results
let _ = x.values();
//~^ ERROR using `values` can result in unstable query results
let mut x = FxHashMap::<u32, i32>::default();
for val in x.values_mut() {
//~^ ERROR using `values_mut` can result in unstable query results
*val = *val + 10;
}
}
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