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// edition:2021
// run-pass
// Test that we can mutate a place through a mut-borrow
// that is captured by the closure
// More specifically we test that the if the mutable reference isn't root variable of a capture
// but rather accessed while accessing the precise capture.
fn mut_tuple() {
let mut t = (10, 10);
let t1 = (&mut t, 10);
let mut c = || {
// Mutable because (*t.0) is mutable
t1.0.0 += 10;
};
c();
}
fn mut_tuple_nested() {
let mut t = (10, 10);
let t1 = (&mut t, 10);
let mut c = || {
let mut c = || {
// Mutable because (*t.0) is mutable
t1.0.0 += 10;
};
c();
};
c();
}
fn main() {
mut_tuple();
mut_tuple_nested();
}
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