rust/src/test/compile-fail/borrowck-loan-blocks-mut-uniq.rs

16 lines
357 B
Rust

fn borrow(v: &int, f: fn(x: &int)) {
f(v);
}
fn box_imm() {
let mut v = ~3;
do borrow(v) |w| { //~ NOTE loan of mutable local variable granted here
v = ~4; //~ ERROR assigning to captured outer mutable variable in a stack closure prohibited due to outstanding loan
assert *v == 3;
assert *w == 4;
}
}
fn main() {
}