rust/src/test/compile-fail/borrowck-lend-args.rs

// xfail-fast  (compile-flags unsupported on windows)
// compile-flags:--borrowck=err

fn borrow(_v: &int) {}

fn borrow_from_arg_imm_ref(&&v: ~int) {
    borrow(v);
}

fn borrow_from_arg_mut_ref(&v: ~int) {
    borrow(v); //! ERROR access to non-pure functions prohibited in a pure context
    //!^ NOTE pure context is required due to an illegal borrow: unique value in aliasable, mutable location
}

fn borrow_from_arg_move(-v: ~int) {
    borrow(v);
}

fn borrow_from_arg_copy(+v: ~int) {
    borrow(v);
}

fn borrow_from_arg_val(++v: ~int) {
    borrow(v);
}

fn main() {
}