Keyboard shortcuts

Press ← or → to navigate between chapters

Press S or / to search in the book

Press ? to show this help

Press Esc to hide this help

Positive coverage: prove_assignable / subtype

subtype
LineCoverageSource
115013(prove_sub_type(env, assumptions, state, a, b) => state)
──────── ("subtype")
1152129(prove_assignable(env, assumptions, state, a, b) => state)

129 tests exercised this rule:


Source location: src/test_util.rs:423 (all coverage from this test)

#[test]
fn borrowck_ok_checks_rustc_ok_once() {
    let before = rustc_runs();
    FormalityTest::new(ACCEPTED)
        .rustc_ok()
        .skip_execute()
        .borrowck_ok();
    assert_eq!(rustc_runs() - before, 1);
}
Proof tree
… (200 of 3408 nodes shown)

Source location: src/test_util.rs:434 (all coverage from this test)

#[test]
#[should_panic(expected = "expected `rustc` to fail but it succeeded")]
fn borrowck_ok_enforces_rustc_err() {
    FormalityTest::new(ACCEPTED)
        .rustc_err(expect_test::expect![[r#"..."#]])
        .skip_execute()
        .borrowck_ok();
}
Proof tree
… (200 of 3408 nodes shown)

Source location: src/test_util.rs:516 (all coverage from this test)

#[test]
fn rustc_expectation_is_independent_of_borrowck_modes() {
    let before = rustc_runs();
    FormalityTest::new(NLL_ONLY_ERROR)
        .rustc_err(expect_test::expect![[r#"
            error[E0499]: cannot borrow `*m` as mutable more than once at a time
             --> lib.rs
              |
            3 | pub fn foo<'a00>(mut m: &'a00 mut Map) -> &'a00 mut Map {
              |            ---- lifetime `'a00` defined here
            4 |     {
            5 |         let mut n: &'_ mut Map = &mut *m;
              |                                  ------- first mutable borrow occurs here
            6 |         if false {
            7 |             return n;
              |                    - returning this value requires that `*m` is borrowed for `'a00`
            8 |         } else {
            9 |             let mut o: &'_ mut Map = &mut *m;
              |                                      ^^^^^^^ second mutable borrow occurs here

            For more information about this error, try `rustc --explain E0499`.
            error: could not compile `Foo` (lib) due to 1 previous error
        "#]])
        .borrowck_err(BorrowCheckFailure::Nll, expect_test::expect![[r#"
            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(m : &!lt_1 mut Map) : <&!lt_1 mut Map as Derefable>::Target
                &access.place = *(m : &!lt_1 mut Map) : <&!lt_1 mut Map as Derefable>::Target

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `m`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(m : &!lt_1 mut Map) : <&!lt_1 mut Map as Derefable>::Target
                place_loaned_ref = m : &!lt_1 mut Map"#]]);
    assert_eq!(rustc_runs() - before, 1);
}
Proof tree
… (200 of 3742 nodes shown)

Source location: tests/borrowck.rs:214 (all coverage from this test)

fn foo() -> Datum {
    let x: Datum = Datum { value: 0_u32 };
    let y: Datum = x;
    x = Datum { value: 1_u32 };
    let z: Datum = x;
    return z;
}
Proof tree
… (200 of 3504 nodes shown)

Source location: tests/borrowck.rs:290 (all coverage from this test)

fn foo() -> u32 {
    let x: u32;
    if true {
        x = 1_u32;
    } else {
        x = 2_u32;
    }
    return x;
}
Proof tree
… (200 of 3440 nodes shown)

Source location: tests/borrowck.rs:316 (all coverage from this test)

fn foo() -> u32 {
    let x: u32 = 1_u32;
    if true {
        x = 2_u32;
    }
    return x;
}
Proof tree
… (200 of 3432 nodes shown)

Source location: tests/borrowck.rs:420 (all coverage from this test)

fn reborrow<'a>(a: &'a mut u8) -> &'a mut u8 {
    exists<'r0, 'r1> {
        if true {
            let b: &'r1 mut u8 = &'r0 mut *a;
            return b;
        }
        return a;
    }
}
Proof tree
… (200 of 3766 nodes shown)

Source location: tests/borrowck.rs:495 (all coverage from this test)

fn foo() -> Datum {
    let x: Pair = Pair {
        first: Datum { value: 1_u32 },
        second: Datum { value: 2_u32 },
    };
    let a: Datum = x.first;
    let b: Datum = x.second;
    return b;
}
Proof tree
… (200 of 3542 nodes shown)

Source location: tests/borrowck.rs:2470 (all coverage from this test)

fn min_problem_case_3<'a>(m: &'a mut Map) -> &'a mut Map {
    exists<'r0, 'r1> {
        let n: &'r0 mut Map = &'r0 mut *m;
        if true {
            return n;
        } else {
            let o: &'r1 mut Map = &'r1 mut *m;
            return o;
        }
    }
}
Proof tree
… (200 of 3742 nodes shown)

Source location: tests/borrowck.rs:2575 (all coverage from this test)

fn foo() -> i32 {
    exists<'r0, 'r1> {
        let result: i32;
        {
            let v1: i32 = 22_i32;
            let v2: &'r0 i32 = &'r1 v1;
            result = *v2;
        }
        return result;
    }
}
Proof tree
… (200 of 3630 nodes shown)

Source location: tests/borrowck.rs:2690 (all coverage from this test)

fn min_problem_case_3<'a>(m: &'a mut Map) -> &'a mut Map {
    exists<'r0, 'r1> {
        let n: &'r0 mut Map = &'r0 mut *m;
        if true {
        } else {
        }
        let o: &'r1 mut Map = &'r1 mut *m;
        return o;
    }
}

Proof trees omitted for the remaining 119 tests; each one is on its test’s page in Coverage by test.


Source location: tests/borrowck.rs:2768 (all coverage from this test)

fn foo<'a, 'b>(v1: &'a u32) -> &'b u32
where
    'a: 'b,
{
    exists<'r0> {
        let v2: &'r0 u32 = v1;
        return v2;
    }
}

Source location: tests/borrowck.rs:2785 (all coverage from this test)

fn foo<'a, 'b, 'c>(v1: &'a u32) -> &'c u32
where
    'a: 'b,
    'b: 'c,
{
    return v1;
}

Source location: tests/borrowck.rs:2827 (all coverage from this test)

fn min_problem_case_4<'a>(list: &'a mut Map, list2: &'a mut Map) -> u32 {
    exists<'r0> {
        let num: &'r0 mut u32 = &'r0 mut (*list).value;
        list = &'a mut *list2;
        num;
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:2963 (all coverage from this test)

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;
    }
}

Source location: tests/borrowck.rs:3156 (all coverage from this test)

fn foo() -> u32 {
    exists<'r0, 'r1> {
        'a: loop {
            let x: i32 = 0_i32;
            let r: &'r0 i32 = &'r1 x;
            let _y: i32 = *r;
            continue 'a;
        }
    }
}

Source location: tests/borrowck.rs:3184 (all coverage from this test)

fn foo() -> () {
    'a: {
        {
            let 'a: v: i32 = 0_i32;
        }
    }
}

Source location: tests/borrowck.rs:3288 (all coverage from this test)

fn foo<'a>(m: &'a mut Map) -> &'a mut Map {
    exists<'r0, 'r1> {
        let n: &'r0 mut Map = &'r0 mut *m;
        if false {
            return n;
        } else {
            let o: &'r1 mut Map = &'r1 mut *m;
            return o;
        }
    }
}

Source location: tests/borrowck.rs:3393 (all coverage from this test)

fn foo<'a>(a: &'a u32) -> &'a u32 {
    exists<'r0> {
        let r: &'r0 u32 = identity::<&'r0 u32>(a);
        return r;
    }
}

Source location: tests/borrowck.rs:3415 (all coverage from this test)

fn bar() -> u32 {
    exists<'r1> {
        let v: u32 = 7_u32;
        let r: u32 = foo::<'r1>(&'r1 v);
        return r;
    }
}

Source location: tests/borrowck.rs:3445 (all coverage from this test)

fn foo<'a, 'b>(a: &'a u32) -> &'b u32
where
    'a: 'b,
{
    let r: &'b u32 = identity::<&'b u32>(a);
    return r;
}

Source location: tests/borrowck.rs:3493 (all coverage from this test)

fn foo<'b>(a: &'b u32) -> &'b u32 {
    let r: &'b u32 = bar::<'b, &'b u32>(a);
    return r;
}

Source location: tests/borrowck.rs:3514 (all coverage from this test)

fn bar() -> u32 {
    exists<'r0, 'r1> {
        let v: u32 = 1_u32;
        let p: &'r0 u32 = &'r1 v;
        foo(0_u32);
        return *p;
    }
}

Source location: tests/borrowck.rs:3568 (all coverage from this test)

fn foo() -> u32 {
    exists<'r0, 'r1, 'r2, 'r3> {
        let p: Point = Point { x: 0_u32, y: 0_u32 };
        let b1: &'r0 mut u32 = &'r1 mut p.x;
        let b2: &'r2 mut u32 = &'r3 mut p.y;
        *b1 = 1_u32;
        *b2 = 2_u32;
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:3690 (all coverage from this test)

fn reborrow<'a>(a: &'a mut u8) -> &'a mut u8 {
    exists<'r0, 'r1, 'r2, 'r3> {
        if true {
            let b: &'r1 mut u8 = &'r0 mut *a;
            return b;
        } else { }

        let c: &'r3 mut u8 = &'r2 mut *a;
        return c;
    }
}

Source location: tests/borrowck.rs:3715 (all coverage from this test)

fn reborrow<'a>(a: &'a mut u8) -> &'a mut u8 {
    exists<'r0, 'r1, 'r2, 'r3> {
        // This creates an outlives constraint
        let b: &'r1 mut u8 = &'r0 mut *a;
        if true {
            return b;
        } else {
            // this means the loan remains live
        }

        // If the outlives constraint propagated here,
        // we would get an error.
        let c: &'r3 mut u8 = &'r2 mut *a;
        return c;
    }
}

Source location: tests/borrowck.rs:3764 (all coverage from this test)

fn reborrow<'a>(a: &'a mut u8) -> &'a mut u8 {
    exists<'r0, 'r1, 'r2, 'r3> {
        let b: &'r1 mut u8 = &'r0 mut *a;
        return b;
        let c: &'r3 mut u8 = &'r2 mut *a;
        return c;
    }
}

Source location: tests/borrowck.rs:3784 (all coverage from this test)

fn reborrow<'a>(a: &'a mut u8) -> &'a mut u8 {
    exists<'r0, 'r1, 'r2, 'r3> {
        if true {
            let b: &'r1 mut u8 = &'r0 mut *a;
            return b;
        } else {
            let c: &'r3 mut u8 = &'r2 mut *a;
            return c;
        }
    }
}

Source location: tests/borrowck.rs:3869 (all coverage from this test)

fn foo() -> u32 {
    exists<'r0, 'r1, 'r2> {
        let x: u32 = 22_u32;
        let p: &'r1 u32 = &'r0 x;
        let q: &'r2 u32 = p;
        x = 1_u32;
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:4048 (all coverage from this test)

fn foo<'a, 'b>(p: &'a mut u32) -> u32 where 'a: 'b {
    let q: &'b mut u32 = &'b mut *p;
    q;
    return 0 _ u32;
}

Source location: tests/borrowck.rs:4167 (all coverage from this test)

fn remove_last_node_recursive<'a>(node: &'a mut List) -> u32 {
    exists<'r0> {
        let next: &'r0 mut List = next_of::<'r0>(&'r0 mut *node);
        if true {
            remove_last_node_recursive::<'r0>(next);
        } else {
            *node = List { value: 0_u32 };
        }
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:4214 (all coverage from this test)

fn remove_last_node_iterative<'a>(node: &'a mut List) -> u32 {
    exists<'r0, 'r1> {
        let cursor: &'r0 mut List = &'r0 mut *node;
        'l: loop {
            let next: &'r1 mut List = &'r1 mut *cursor;
            if true {
                cursor = next;
            } else {
                break 'l;
            }
        }
        *cursor = List { value: 0_u32 };
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:4276 (all coverage from this test)

fn no_control_flow() -> u32 {
    exists<'r0, 'r1, 'r2, 'r3> {
        let b: X = X { value: 0_u32 };
        let p: &'r0 mut X = &'r1 mut b;
        'l: loop {
            let now: &'r2 mut X = &'r2 mut *p;
            if true {
                let next: &'r3 mut X = next_of::<'r3>(&'r3 mut *now);
                p = next;
            } else {
                break 'l;
            }
        }
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:4326 (all coverage from this test)

fn conditional() -> u32 {
    exists<'r0, 'r1, 'r2, 'r3> {
        let b: X = X { value: 0_u32 };
        let p: &'r0 mut X = &'r1 mut b;
        'l: loop {
            let now: &'r2 mut X = &'r2 mut *p;
            if true {
                if true {
                    let next: &'r3 mut X = next_of::<'r3>(&'r3 mut *now);
                    p = next;
                } else {
                }
            } else {
                break 'l;
            }
        }
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:4415 (all coverage from this test)

fn conditional_with_indirection() -> u32 {
    exists<'r0, 'r1, 'r2, 'r3> {
        let b: X = X { value: 0_u32 };
        let p: &'r0 mut X = &'r1 mut b;
        'l: loop {
            let now: &'r2 mut X = &'r2 mut *p;
            if true {
                if true {
                    let next: &'r3 mut X = next_of::<'r3>(&'r3 mut *p);
                    p = next;
                } else {
                }
            } else {
                break 'l;
            }
        }
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:4467 (all coverage from this test)

fn to_refs<'a>(list: &'a mut List) -> &'a mut u32 {
    exists<'r0, 'r1> {
        let result: &'a mut u32;
        'l: loop {
            result = &'r0 mut (*list).value;
            if true {
                let n: &'r1 mut List = next_from_field::<'r1>(&'r1 mut (*list).next);
                list = n;
            } else {
                return result;
            }
        }
    }
}

Source location: tests/borrowck.rs:4502 (all coverage from this test)

fn to_refs2<'a>(list: &'a mut List) -> &'a mut u32 {
    exists<'r0, 'r1> {
        let result: &'a mut u32;
        'l: loop {
            result = &'r0 mut (*list).value;
            if true {
                let n: &'r1 mut List = next_from_field::<'r1>(&'r1 mut (*list).next);
                list = n;
            } else {
                break 'l;
            }
        }
        return result;
    }
}

Source location: tests/borrowck.rs:4549 (all coverage from this test)

fn to_refs3<'a>(list: &'a mut List) -> &'a mut u32 {
    exists<'r0, 'r1> {
        let result: &'a mut u32;
        let cursor: &'a mut List = &'a mut *list;
        'l: loop {
            result = &'r0 mut (*cursor).value;
            if true {
                let n: &'r1 mut List = next_from_field::<'r1>(&'r1 mut (*cursor).next);
                cursor = n;
            } else {
                return result;
            }
        }
    }
}

Source location: tests/borrowck.rs:4592 (all coverage from this test)

fn next<'a>(d: &'a mut Decoder) -> &'a u32 {
    exists<'r0, 'r1> {
        'l: loop {
            let buf: &'r0 u32 = fill_buf::<'r0>(&'r0 mut (*d).buf_read);
            let s: &'r1 u32 = decode::<'r1>(buf);
            if true {
                return s;
            } else {
            }
        }
    }
}

Source location: tests/borrowck.rs:4715 (all coverage from this test)

fn next<'s>(f: &'s mut Filter) -> &'s mut u32 {
    exists<'r0, 'r1, 'r2> {
        'l: loop {
            let item: &'r0 mut u32 = iter_next::<'r0>(&'r0 mut (*f).iter);
            if true {
                let keep: bool = call_predicate::<'r1, 'r2>(&'r1 mut (*f).predicate, &'r2 *item);
                if keep {
                    return item;
                } else {
                }
            } else {
                break 'l;
            }
        }
        return no_item::<'s>();
    }
}

Source location: tests/borrowck.rs:4831 (all coverage from this test)

fn use_it<'a, 'b>() -> u32 {
    exists<'r0> {
        let v: Invariant<'r0> = create_invariant::<'r0>();
        if true {
            return sink::<'a, 'r0>(v);
        } else {
            return sink::<'b, 'r0>(v);
        }
    }
}

Source location: tests/borrowck.rs:4896 (all coverage from this test)

fn use_it_but_its_the_same_region<'a, 'b>() -> u32 where 'a: 'b, 'b: 'a {
    exists<'r0> {
        let v: Invariant<'r0> = create_invariant::<'r0>();
        if true {
            return sink::<'a, 'r0>(v);
        } else {
            return sink::<'b, 'r0>(v);
        }
    }
}

Source location: tests/borrowck.rs:4970 (all coverage from this test)

fn f() -> u32 {
    exists<'r0> {
        let v: u32 = 0_u32;
        let w: Wrapper<'r0> = Wrapper::<'r0> { value: &'r0 v };
        return *w.value;
    }
}

Source location: tests/borrowck.rs:4985 (all coverage from this test)

fn foo() -> u32 {
    let a: u32 = 0_u32;
    a;
    a;
    return 0_u32;
}

Source location: tests/borrowck.rs:5004 (all coverage from this test)

fn foo() -> u32 {
    exists<'l0> {
        let a: u32 = 0_u32;
        let p: &'l0 u32 = &'l0 a;
        let q: &'l0 u32 = p;
        let r: &'l0 u32 = p;
        p;
        return 0_u32;
    }
}

Source location: tests/borrowck.rs:5022 (all coverage from this test)

fn foo() -> () {
    let x: u32 = 1_u32;
    exists<'r0> {
        let r: &'r0 mut u32 = &'r0 mut x;
        x += *r;
    }
}

Source location: tests/borrowck.rs:5120 (all coverage from this test)

fn bump<'a>(p: &'a mut u32) -> () {
    *p += 1_u32;
}

Source location: tests/codegen.rs:131 (all coverage from this test)

fn main() -> () {
    let x: i32 = 42_i32;
    println!(x);
}

Source location: tests/codegen.rs:144 (all coverage from this test)

fn main() -> () {
    let x: i32 = 1_i32;
    x = 2 _ i32;
    println!(x);
}

Source location: tests/codegen.rs:159 (all coverage from this test)

fn main() -> () {
    let y: i32 = add_one(1_i32);
    println!(y);
}

Source location: tests/codegen.rs:174 (all coverage from this test)

fn main() -> () {
    let y: i32 = identity::<i32>(42_i32);
    println!(y);
}

Source location: tests/codegen.rs:190 (all coverage from this test)

fn main() -> () {
    let x: i32 = 1_i32;
    if true {
        println!(x);
    } else {
        println!(0_i32);
    }
}

Source location: tests/codegen.rs:205 (all coverage from this test)

fn main() -> () {
    let x: i32 = 0_i32;
    'a: loop {
        println!(x);
        break 'a;
    }
}

Source location: tests/codegen.rs:222 (all coverage from this test)

fn main() -> () {
    {
        let x: i32 = 99_i32;
        println!(x);
    }
    exists<'a> {
        println!(1_i32);
    }
}

Source location: tests/codegen.rs:236 (all coverage from this test)

fn main() -> () {
    let p: Pair = Pair { x: 10_i32, y: 20_i32 };
    println!(p.x);
    println!(p.y);
}

Source location: tests/codegen.rs:251 (all coverage from this test)

fn main() -> () {
    let x: i32 = 42_i32;
    exists<'a> {
        let r: & 'a i32 = & 'a x;
        println!(*r);
    }
}

Source location: tests/codegen.rs:265 (all coverage from this test)

fn main() -> () {
    let a: usize = 100_usize;
    let b: isize = 200_isize;
    println!(a);
    println!(b);
}

Source location: tests/codegen.rs:282 (all coverage from this test)

fn main() -> () {
    let a: i32 = f(1_i32);
    let b: i32 = f(2_i32);
    let c: i32 = f(3_i32);
    println!(a);
    println!(b);
    println!(c);
}

Source location: tests/codegen.rs:295 (all coverage from this test)

fn main() -> () {
    let y: i32 = f(f(42_i32));
    println!(y);
}

Source location: tests/codegen.rs:312 (all coverage from this test)

fn main() -> () {
    let r: i32 = outer(7_i32);
    println!(r);
}

Source location: tests/codegen.rs:332 (all coverage from this test)

fn main() -> () {
    a();
}

Source location: tests/codegen.rs:345 (all coverage from this test)

fn main() -> () {
    let r: i32 = first::<i32, bool>(10_i32, true);
    println!(r);
}

Source location: tests/codegen.rs:358 (all coverage from this test)

fn main() -> () {
    let w: Wrapper<i32> = Wrapper::<i32> { val: 42_i32 };
    println!(w.val);
}

Source location: tests/codegen.rs:374 (all coverage from this test)

fn main() -> () {
    let p: Pair = Pair { x: 10_i32, y: 20_i32 };
    exists<'a> {
        let r: & 'a i32 = & 'a p.x;
        println!(*r);
    }
}

Source location: tests/codegen.rs:391 (all coverage from this test)

fn main() -> () {
    let p: Pair = Pair { x: 10_i32, y: 20_i32 };
    exists<'a> {
        let r: & 'a Pair = & 'a p;
        println!((*r).x);
        println!((*r).y);
    }
}

Source location: tests/codegen.rs:410 (all coverage from this test)

fn main() -> () {
    let x: i32 = 0_i32;
    'a: loop {
        if true {
            println!(x);
            break 'a;
        } else {
            continue 'a;
        }
    }
}

Source location: tests/codegen.rs:448 (all coverage from this test)

fn main() -> () {
    'a: loop {
        if true {
            println!(1_i32);
            break 'a;
        } else {
            println!(2_i32);
            break 'a;
        }
    }
    println!(3_i32);
}

Source location: tests/codegen.rs:469 (all coverage from this test)

fn main() -> () {
    let x: i32 = 0_i32;
    'a: loop {
        if false {
            x = 1_i32;
            break 'a;
        } else {
            x = 2_i32;
            break 'a;
        }
    }
    println!(x);
}

Source location: tests/codegen.rs:485 (all coverage from this test)

fn main() -> () {
    let x: i32 = 1_i32;
    exists<'a> {
        let r: &'a mut i32 = &'a mut x;
        *r = 2_i32;
        println!(*r);
    }
}

Source location: tests/codegen.rs:501 (all coverage from this test)

fn main() -> () {
    let x: i32 = 42_i32;
    exists<'a> {
        let r1: & 'a i32 = & 'a x;
        let r2: & 'a i32 = & 'a *r1;
        println!(*r2);
    }
}

Source location: tests/codegen.rs:516 (all coverage from this test)

fn main() -> () {
    let x: i32 = 55_i32;
    exists<'a> {
        let r: & 'a i32 = & 'a x;
        println!(*r);
    }
}

Source location: tests/codegen.rs:532 (all coverage from this test)

fn main() -> () {
    let x: i32 = 0_i32;
    'a: loop {
        x = 77_i32;
        break 'a;
    }
    println!(x);
}

Source location: tests/codegen.rs:550 (all coverage from this test)

fn main() -> () {
    let x: i32 = 0_i32;
    'a: loop {
        {
            x = 88_i32;
            break 'a;
        }
    }
    println!(x);
}

Source location: tests/codegen.rs:586 (all coverage from this test)

fn main() -> () {
    let x: u32 = 1_u32;
    exists<'a> {
        let r: &'a mut u32 = &'a mut x;
        let amount: u32 = update::<'a>(r);
        println!(amount);
    }
}

Source location: tests/codegen.rs:598 (all coverage from this test)

fn main() -> () {
    let x: i32 = 1_i32 + 2_i32;
    println!(x);
}

Source location: tests/codegen.rs:611 (all coverage from this test)

fn main() -> () {
    let x: u32 = 0_u32;
    x = 1_u32 + 2_u32 + 3_u32;
    println!(x);
}

Source location: tests/codegen.rs:628 (all coverage from this test)

fn main() -> () {
    println!(identity::<S>(7_u32));
}

Source location: tests/codegen.rs:640 (all coverage from this test)

fn main() -> () { println!(left() + right()); }
}])
tc_ok()
ect_output("1\n2\n30\n")
)
}

#[test]
ion_in_call_arguments() {
alityTest::new(crates![crate test {
fn sum(x: i32, y: i32) -> i32 { return x + y; }
fn main() -> () {
    println!(sum(1_i32 + 2_i32, sum(3_i32, 4_i32)));
}

Source location: tests/codegen.rs:653 (all coverage from this test)

fn main() -> () {
    println!(sum(1_i32 + 2_i32, sum(3_i32, 4_i32)));
}

Source location: tests/codegen.rs:677 (all coverage from this test)

fn main() -> () {
    let i_min: i128 = -170141183460469231731687303715884105728 _ i128;
    let i_max: i128 = 170141183460469231731687303715884105727 _ i128;
    let u_min: u128 = 0 _ u128;
    let u_max: u128 = 340282366920938463463374607431768211455 _ u128;
    println!(i_min);
    println!(i_max);
    println!(u_min);
    println!(u_max);
}

Source location: tests/codegen.rs:693 (all coverage from this test)

fn main() -> () {
    let s: S = S { b: second(), a: first() };
    println!(s.a);
    println!(s.b);
}

Source location: tests/codegen.rs:705 (all coverage from this test)

fn main() -> () {
    println!(10_i32 - 3_i32);
}

Source location: tests/codegen.rs:721 (all coverage from this test)

fn main() -> () {
    let w: Wrap<<S as Value>::Item> = Wrap::<<S as Value>::Item> { value: 7_u32 };
    println!(w.value);
}

Source location: tests/codegen.rs:733 (all coverage from this test)

fn main() -> () {
    println!(3_i32 - 10_i32);
}

Source location: tests/codegen.rs:745 (all coverage from this test)

fn main() -> () {
    println!(10_i32 - 3_i32 - 2_i32);
}

Source location: tests/codegen.rs:757 (all coverage from this test)

fn main() -> () {
    println!(10_i32 - 3_i32 + 2_i32);
}

Source location: tests/codegen.rs:769 (all coverage from this test)

fn main() -> () { println!(left() - right()); }
}])
tc_ok()
ect_output("1\n2\n7\n")
);
}

#[test]
er_subtraction_unsigned() {
alityTest::new(crates![crate Foo {
fn main() -> () {
    println!(10_u32 - 3_u32);
}

Source location: tests/codegen.rs:781 (all coverage from this test)

fn main() -> () {
    println!(10_u32 - 3_u32);
}

Source location: tests/codegen.rs:798 (all coverage from this test)

fn main() -> () {
    let x: <S as Outer>::Item = 7_u32;
    println!(x);
}

Source location: tests/codegen.rs:810 (all coverage from this test)

fn main() -> () {
    println!(10_i32 - (3_i32 - 2_i32));
}

Source location: tests/codegen.rs:822 (all coverage from this test)

fn main() -> () {
    println!(20_i32 - (10_i32 - (3_i32 - 1_i32)));
}

Source location: tests/codegen.rs:836 (all coverage from this test)

fn main() -> () {
    let x: i32 = 10_i32;
    (x = (x - 3_i32));
    println!(x);
}

Source location: tests/codegen.rs:891 (all coverage from this test)

fn main() -> () {
    println!(3_i32 * 4_i32);
}

Source location: tests/codegen.rs:905 (all coverage from this test)

fn main() -> () {
    println!(2_i32 + 3_i32 * 4_i32);
    println!(2_i32 * 3_i32 + 4_i32);
    println!(2_i32 + 3_i32 * 4_i32 * 2_i32);
}

Source location: tests/codegen.rs:927 (all coverage from this test)

fn main() -> () {
    println!(identity::<Number>(7_u32));
    println!(identity::<Flag>(true));
    println!(identity::<Number>(9_u32));
}

Source location: tests/codegen.rs:964 (all coverage from this test)

fn main() -> () {
    let x: u32 = 1_u32;
    exists<'a> {
        let r: &'a mut u32 = &'a mut x;
        x += update::<'a>(r);
    }
    println!(x);
}

Source location: tests/codegen.rs:976 (all coverage from this test)

fn main() -> () {
    println!(-3_i32 * 4_i32);
}

Source location: tests/codegen.rs:988 (all coverage from this test)

fn main() -> () {
    println!(3_u32 * 4_u32);
}

Source location: tests/codegen.rs:1000 (all coverage from this test)

fn main() -> () { println!(left() * right()); }
}])
tc_ok()
ect_output("1\n2\n12\n")
);
}

#[test]
plication_with_parentheses() {
alityTest::new(crates![crate Foo {
fn main() -> () {
    println!((2_i32 + 3_i32) * 4_i32);
    println!(2_i32 * (3_i32 + 4_i32));
}

Source location: tests/codegen.rs:1013 (all coverage from this test)

fn main() -> () {
    println!((2_i32 + 3_i32) * 4_i32);
    println!(2_i32 * (3_i32 + 4_i32));
}

Source location: tests/codegen.rs:1026 (all coverage from this test)

fn main() -> () {
    println!(20_i32 - 2_i32 * 3_i32);
    println!((20_i32 - 2_i32) * 3_i32);
}

Source location: tests/codegen.rs:1086 (all coverage from this test)

fn main() -> () {
    let x: u32 = 1_u32;
    x += 2_u32 + 3_u32;
    println!(x);
}

Source location: tests/codegen.rs:1102 (all coverage from this test)

fn main() -> () {
    let p: Pair = Pair { a: 1_u32, b: 10_u32 };
    p.b += p.a;
    println!(p.b);
}

Source location: tests/codegen.rs:1116 (all coverage from this test)

fn main() -> () {
    let x: u32 = 20_u32;
    x -= 2_u32 + 3_u32;
    println!(x);
}

Source location: tests/codegen.rs:1132 (all coverage from this test)

fn main() -> () {
    let p: Pair = Pair { a: 2_u32, b: 3_u32 };
    p.b *= p.a + 4_u32;
    println!(p.b);
    println!(p.a);
}

Source location: tests/field_projections.rs:17 (all coverage from this test)

fn test(ptr: Ptr) -> () {
    let x: () = *ptr;
}

Source location: tests/mir_typeck.rs:14 (all coverage from this test)

fn foo (v1: u32) -> u32 {
    return v1;
}

Source location: tests/mir_typeck.rs:37 (all coverage from this test)

fn foo () -> u8 {
    let v1: u16 = 5_u16;
    let v2: u32 = 5_u32;
    let v3: u64 = 5_u64;
    let v4: usize = 5_usize;
    let v5: i8 = 5_i8;
    let v6: i16 = 5_i16;
    let v7: i32 = 5_i32;
    let v8: i64 = 5_i64;
    let v9: isize = 5_isize;
    let v10: bool = false;
    return 5_u8;
}

Source location: tests/mir_typeck.rs:93 (all coverage from this test)

fn foo (v1: u32) -> u32 {
    return v1;
}

Source location: tests/mir_typeck.rs:110 (all coverage from this test)

fn foo() -> u32 {
    let v0: u32 = 0_u32;
    loop {
        v0 = v0;
    }
}

Source location: tests/mir_typeck.rs:123 (all coverage from this test)

fn foo () -> bool {
    return true;
}

Source location: tests/mir_typeck.rs:140 (all coverage from this test)

fn foo (b: bool) -> u32 {
    if b {
        return 1_u32;
    } else {
        return 2_u32;
    }
}

Source location: tests/mir_typeck.rs:193 (all coverage from this test)

fn bar(v1: u32) -> u32 {
    let v0: u32 = foo(v1);
    return v0;
}

Source location: tests/mir_typeck.rs:214 (all coverage from this test)

fn foo (v1: u32) -> u32 {
    return v1;
}

Source location: tests/mir_typeck.rs:259 (all coverage from this test)

fn foo (v1: u32) -> u32 {
    let v2: Dummy = Dummy { value: 1_u32, is_true: false };
    v2.value = 2_u32;
    return v1;
}

Source location: tests/mir_typeck.rs:439 (all coverage from this test)

fn bar(v1: u32) -> u32 {
    let v0: u32 = identity::<u32>(v1);
    return v0;
}

Source location: tests/mir_typeck.rs:925 (all coverage from this test)

fn foo() -> bool {
    let v1: bool = false;
    return v1;
}

Source location: tests/mir_typeck.rs:949 (all coverage from this test)

fn foo<'a>(v1: &'a u32) -> &'a u32 {
    exists<'r0> {
        let v2: &'r0 u32 = v1;
        return v2;
    }
}

Source location: tests/mir_typeck.rs:967 (all coverage from this test)

fn foo () -> u32 {
    exists<'a> {
        let v0: u32 = 0_u32;
        let v1: &'a u32 = &'a v0;
        let v2: u32 = *v1;
        return v2;
    }
}

Source location: tests/mir_typeck.rs:987 (all coverage from this test)

fn foo<'a, T>(v1: &'a T) -> T
where
    T: Copy,
    T: 'a,
{
    exists<'r0> {
        let v2: T = *v1;
        return v2;
    }
}

Source location: tests/mir_typeck.rs:1014 (all coverage from this test)

fn foo() -> u32 {
    'a: loop {
        break 'a;
    }
    return 0_u32;
}

Source location: tests/mir_typeck.rs:1073 (all coverage from this test)

fn foo() -> u32 {
    'a: loop {
        continue 'a;
    }
    return 0_u32;
}

Source location: tests/mir_typeck.rs:1142 (all coverage from this test)

fn foo<'a>(v1: &'a Pair) -> u32 {
    exists<'r0> {
        let v2: u32 = (*v1).value;
        return v2;
    }
}

Source location: tests/mir_typeck.rs:1168 (all coverage from this test)

fn foo() -> u32 {
    'a: {
        break 'a;
    }
    return 0_u32;
}

Source location: tests/return_validation.rs:51 (all coverage from this test)

fn foo(b: bool) -> u32 {
    if b {
        return 1_u32;
    } else {
        return 2_u32;
    }
}

Source location: tests/return_validation.rs:118 (all coverage from this test)

fn foo() -> u32 {
    'a: loop {
        break 'a;
    }
    return 0_u32;
}

Source location: tests/return_validation.rs:132 (all coverage from this test)

fn foo() -> u32 {
    return 42_u32;
}

Source location: tests/sized_trait.rs:142 (all coverage from this test)


Source location: tests/well_formed_struct.rs:17 (all coverage from this test)

fn main() -> () {
    exists<'y> {
        let a: u32 = 22_u32;
        let f: Foo<'y> = Foo::<'y> { y: &'y a };
    }
}

How to read this page