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// edition:2021
#![feature(rustc_attrs)]
struct Filter {
div: i32,
}
impl Filter {
fn allowed(&self, x: i32) -> bool {
x % self.div == 1
}
}
struct Data {
filter: Filter,
list: Vec<i32>,
}
impl Data {
fn update(&mut self) {
// The closure passed to filter only captures self.filter,
// therefore mutating self.list is allowed.
self.list.retain(
#[rustc_capture_analysis]
|v| self.filter.allowed(*v),
//~^ ERROR: First Pass analysis includes:
//~| ERROR: Min Capture analysis includes:
//~| NOTE: Capturing self[Deref,(0, 0)] -> ImmBorrow
//~| NOTE: Min Capture self[Deref,(0, 0)] -> ImmBorrow
);
}
}
fn main() {
let mut d = Data { filter: Filter { div: 3 }, list: Vec::new() };
for i in 1..10 {
d.list.push(i);
}
d.update();
}
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