Test foo
Source location: tests/borrowck.rs:2963
fn foo () -> u32 {
exists<'l_p, 'l_q, 'loan_0, 'loan_1, 'loan_2, 'loan_3> {
let a: u32 = 0_u32;
let b: u32 = 0_u32;
// In Rustc, the 1-tuple is needed for some reason
// Niko does not 100% understand, else rustc is able to
// see that this program is safe.
let q: &'l_q mut u32 = &'loan_0 mut a;
let p: &'l_p mut u32 = &'loan_1 mut a;
if true {
p = &'loan_1 mut a;
q = &'loan_2 mut b;
} else {
p = &'loan_3 mut b;
}
*q = 1_u32;
return *p;
}
}
Rules proved (86)
Premises failed (0)
This test records no negative coverage.
Proof trees
Proof tree
check_all_crates (check all prefixes)mod.rs:55args
for_allmod.rs:42for_allmod.rs:52args
check_crate (check crate)mod.rs:76args
for_allmod.rs:61for_allmod.rs:73args
check_crate_item (trait)mod.rs:189args
check_trait (check trait)traits.rs:25args
scopetraits.rs:9prove_predicate_list (none)prove_predicate_list.rs:21args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
check_safety_matches (safety matches)impls.rs:83args
check_drop_impl_always_applicable (not a Drop impl)impls.rs:342args
for_allmod.rs:73args
check_crate_item (trait impl)mod.rs:196args
check_trait_impl (check_trait_impl)impls.rs:40args
scopeimpls.rs:14prove_predicate_list (none)prove_predicate_list.rs:21args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (positive impl)prove_predicate.rs:79args
scopeprove_predicate.rs:22prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args