Positive coverage: prove_eq / existential

141 tests exercised this rule:

Source location: crates/formality-rust/src/prove/test/eq_assumptions.rs:24 (all coverage from this test)

#[test]
fn test_b() {
    test_prove(
        Program::empty(),
        term("exists<A> {} => {for<T, U> if {T = u32, U = Vec<T>} A = U}"),
    )
    .assert_ok(expect!["{Constraints { env: Env { variables: [?ty_2, ?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => Vec<u32>, ?ty_2 => u32} }}"]);
}

Source location: crates/formality-rust/src/prove/test/eq_partial_eq.rs:25 (all coverage from this test)

#[test]
fn eq_implies_partial_eq() {
    let assumptions: Wcs = Wcs::t();
    let goal: Wc = term("for<T> if {Eq(T)} PartialEq(T)");
    let constraints = prove(decls(), (), assumptions, goal);
    constraints.assert_ok(
    expect!["{Constraints { env: Env { variables: [], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);
}

Source location: crates/formality-rust/src/prove/test/exists_constraints.rs:24 (all coverage from this test)

#[test]
fn exists_u_for_t() {
    test_prove(decls(), term("exists<U> {} => {Foo(U)}")).assert_ok(expect!["{Constraints { env: Env { variables: [?ty_2, ?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => Vec<?ty_2>} }}"]);
}

Source location: crates/formality-rust/src/prove/test/occurs_check.rs:36 (all coverage from this test)

#[test]
fn eq_variable_to_rigid() {
    test_prove(decls(), term("exists<X, Y> {} => {X = Vec<Y>}")).assert_ok(expect!["{Constraints { env: Env { variables: [?ty_3, ?ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => Vec<?ty_3>, ?ty_2 => ?ty_3} }}"]);
}

Source location: crates/formality-rust/src/prove/test/occurs_check.rs:42 (all coverage from this test)

#[test]
fn eq_rigid_to_variable() {
    test_prove(decls(), term("exists<X, Y> {} => {Vec<Y> = X}")).assert_ok(expect!["{Constraints { env: Env { variables: [?ty_3, ?ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => Vec<?ty_3>, ?ty_2 => ?ty_3} }}"]);
}

Source location: crates/formality-rust/src/prove/test/simple_impl.rs:24 (all coverage from this test)

#[test]
fn vec_u32_debug() {
    let goal: Wc = term("Debug(Vec<u32>)");
    prove(decls(), (), (), goal).assert_ok(expect!["{Constraints { env: Env { variables: [], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);
}

Source location: crates/formality-rust/src/prove/test/simple_impl.rs:30 (all coverage from this test)

#[test]
fn vec_vec_u32_debug() {
    let goal: Wc = term("Debug(Vec<Vec<u32>>)");
    prove(decls(), (), (), goal).assert_ok(expect!["{Constraints { env: Env { variables: [], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);
}

Source location: crates/formality-rust/src/prove/test/universes.rs:37 (all coverage from this test)

#[test]
fn for_t_exists_u() {
    let decls = Program {
        crates: Arc::new(Program::program_from_items(vec![
            term("trait Test<T> where {}"),
            term("impl<X> Test<X> for X {}"),
        ])),
        ..Program::empty()
    };

    test_prove(decls, term("{} => {for<T> Test(T, T)}")).assert_ok(expect!["{Constraints { env: Env { variables: [], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);
}

Source location: tests/associated_type_normalization.rs:19 (all coverage from this test)

#[test]
fn test_mirror_normalizes_u32_to_u32() {
    test_where_clause(MIRROR, "exists<T> {} => {<u32 as Mirror>::Assoc = T}")
        .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => u32} }, Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => <u32 as Mirror>::Assoc} }}"]);
}

Source location: tests/basic_tests.rs:58 (all coverage from this test)

#[test]
fn hello_world() {
    FormalityTest::new(crates![crate Foo {
        trait Foo<T> where T: Bar<Self>, Self: Baz {}

        trait Bar<T> where T: Baz {}

        trait Baz {}

        impl Baz for u32 {}

        impl Bar<u32> for u32 {}
        impl<T> Bar<T> for () where T: Baz {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/basic_tests.rs:74 (all coverage from this test)

#[test]
fn basic_where_clauses_pass() {
    FormalityTest::new(crates![crate core {
        #![feature(non_lifetime_binders)]
        trait A<T> where T: B { }

        trait B { }

        trait WellFormed where for<T> u32: A<T> { }

        impl <T> B for T {}
    }])
    .skip_execute()
    .ok()
}

Proof trees omitted for the remaining 131 tests; each one is on its test’s page in Coverage by test.

Source location: tests/basic_tests.rs:121 (all coverage from this test)

fn foo() -> () where for<T> u32: A<T> { trusted }

impl <T> B for T {}
}])
p_execute()
)
}

#[test]
ifetime_binder_in_fn_where_clause_fail() {
alityTest::new(crates![crate core {
trait A<T> where T: B { }

trait B { }

fn foo() -> () where for<T> u32: A<T> { trusted }
}])
(expect_test::expect![[r#"
the rule "check crate" at (mod.rs) failed because
  non lifetime binders require #![feature(non_lifetime_binders)]"#]])
}

#[test]
ifetime_binder_in_trait_impl_where_clause_pass() {
alityTest::new(crates![crate core {
#![feature(non_lifetime_binders)]
trait A<T> where T: B { }

trait B { }

impl<T> B for T where for<U> u32: A<U> { }
}])
p_execute()
)
}

#[test]
ifetime_binder_in_trait_impl_where_clause_fail() {
alityTest::new(crates![crate core {
trait A<T> where T: B { }

trait B { }

impl<T> B for T where for<U> u32: A<U> { }
}])
(expect_test::expect![[r#"
the rule "check crate" at (mod.rs) failed because
  non lifetime binders require #![feature(non_lifetime_binders)]"#]])
}

#[test]
ifetime_binder_in_neg_trait_impl_where_clause_pass() {
alityTest::new(crates![crate core {
#![feature(non_lifetime_binders)]
trait A<T> where T: B { }

trait B { }

impl<T> !A<T> for u32 where for<U> u32: A<U> { }

impl <T> B for T {}
}])
p_execute()
)
}

#[test]
ifetime_binder_in_neg_trait_impl_where_clause_fail() {
alityTest::new(crates![crate core {
trait A<T> where T: B { }

trait B { }

impl<T> !A<T> for u32 where for<U> u32: A<U> { }
}])
(expect_test::expect![[r#"
the rule "check crate" at (mod.rs) failed because
  non lifetime binders require #![feature(non_lifetime_binders)]"#]])
}

#[test]
ifetime_binder_in_enum_where_clause_pass() {
alityTest::new(crates![crate core {
#![feature(non_lifetime_binders)]
trait A<T> where T: B { }

trait B { }

enum E where for<U> u32: A<U> { }

impl <T> B for T {}
}])
p_execute()
)
}

#[test]
ifetime_binder_in_enum_where_clause_fail() {
alityTest::new(crates![crate core {
trait A<T> where T: B { }

trait B { }

enum E where for<U> u32: A<U> { }
}])
(expect_test::expect![[r#"
the rule "check crate" at (mod.rs) failed because
  non lifetime binders require #![feature(non_lifetime_binders)]"#]])
}

#[test]
ifetime_binder_in_struct_where_clause_pass() {
alityTest::new(crates![crate core {
#![feature(non_lifetime_binders)]
trait A<T> where T: B { }

trait B { }

struct S<T> where for<U> u32: A<U> { }

impl <T> B for T {}
}])
p_execute()
)
}

#[test]
ifetime_binder_in_struct_where_clause_fail() {
alityTest::new(crates![crate core {
trait A<T> where T: B { }

trait B { }

struct S<T> where for<U> u32: A<U> { }
}])
(expect_test::expect![[r#"
the rule "check crate" at (mod.rs) failed because
  non lifetime binders require #![feature(non_lifetime_binders)]"#]])
}

#[test]
ime_binder_in_where_clause_without_feature_pass() {
alityTest::new(crates![crate core {
trait A<'b> { }

impl<'b> A<'b> for u32 { }

trait WellFormed where for<'b> u32: A<'b> { }
}])
p_execute()
)
}

#[test]
_adt_variant_dup() {
alityTest::new(crates![crate Foo {
enum Bar {
    Baz{},
    Baz{},
}

Source location: tests/basic_tests.rs:149 (all coverage from this test)

#[test]
fn non_lifetime_binder_in_trait_impl_where_clause_pass() {
    FormalityTest::new(crates![crate core {
        #![feature(non_lifetime_binders)]
        trait A<T> where T: B { }

        trait B { }

        impl<T> B for T where for<U> u32: A<U> { }
    }])
    .skip_execute()
    .ok()
}

Source location: tests/basic_tests.rs:179 (all coverage from this test)

#[test]
fn non_lifetime_binder_in_neg_trait_impl_where_clause_pass() {
    FormalityTest::new(crates![crate core {
        #![feature(non_lifetime_binders)]
        trait A<T> where T: B { }

        trait B { }

        impl<T> !A<T> for u32 where for<U> u32: A<U> { }

        impl <T> B for T {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/basic_tests.rs:209 (all coverage from this test)

#[test]
fn non_lifetime_binder_in_enum_where_clause_pass() {
    FormalityTest::new(crates![crate core {
        #![feature(non_lifetime_binders)]
        trait A<T> where T: B { }

        trait B { }

        enum E where for<U> u32: A<U> { }

        impl <T> B for T {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/basic_tests.rs:239 (all coverage from this test)

#[test]
fn non_lifetime_binder_in_struct_where_clause_pass() {
    FormalityTest::new(crates![crate core {
        #![feature(non_lifetime_binders)]
        trait A<T> where T: B { }

        trait B { }

        struct S<T> where for<U> u32: A<U> { }

        impl <T> B for T {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/basic_tests.rs:266 (all coverage from this test)

#[test]
fn lifetime_binder_in_where_clause_without_feature_pass() {
    FormalityTest::new(crates![crate core {
        trait A<'b> { }

        impl<'b> A<'b> for u32 { }

        trait WellFormed where for<'b> u32: A<'b> { }
    }])
    .skip_execute()
    .ok()
}

Source location: tests/borrowck.rs:131 (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;
}

Source location: tests/borrowck.rs:207 (all coverage from this test)

fn foo() -> u32 {
    let x: u32;
    if true {
        x = 1_u32;
    } else {
        x = 2_u32;
    }
    return x;
}

Source location: tests/borrowck.rs:233 (all coverage from this test)

fn foo() -> u32 {
    let x: u32 = 1_u32;
    if true {
        x = 2_u32;
    }
    return x;
}

Source location: tests/borrowck.rs:337 (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;
    }
}

Source location: tests/borrowck.rs:412 (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;
}

Source location: tests/borrowck.rs:2158 (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;
        }
    }
}

Source location: tests/borrowck.rs:2263 (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;
    }
}

Source location: tests/borrowck.rs:2378 (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;
    }
}

Source location: tests/borrowck.rs:2440 (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:2457 (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:2499 (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:2635 (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:2828 (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:2856 (all coverage from this test)

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

Source location: tests/borrowck.rs:2960 (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:3065 (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:3087 (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:3117 (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:3165 (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:3186 (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:3240 (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:3362 (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:3387 (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:3436 (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:3456 (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:3524 (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:3689 (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:3808 (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:3855 (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:3917 (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:3967 (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:4056 (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:4108 (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:4143 (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:4190 (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:4233 (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:4356 (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:4472 (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:4537 (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/codegen.rs:11 (all coverage from this test)

fn main() -> () {
    println!(22_i32);
}

Source location: tests/codegen.rs:24 (all coverage from this test)

fn main() -> () {
    println!(1_i32);
    println!(true);
    println!(false);
}

Source location: tests/codegen.rs:36 (all coverage from this test)

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

Source location: tests/codegen.rs:49 (all coverage from this test)

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

Source location: tests/codegen.rs:64 (all coverage from this test)

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

Source location: tests/codegen.rs:79 (all coverage from this test)

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

Source location: tests/codegen.rs:95 (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:110 (all coverage from this test)

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

Source location: tests/codegen.rs:127 (all coverage from this test)

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

Source location: tests/codegen.rs:141 (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:171 (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:188 (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:201 (all coverage from this test)

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

Source location: tests/codegen.rs:218 (all coverage from this test)

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

Source location: tests/codegen.rs:238 (all coverage from this test)

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

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

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

Source location: tests/codegen.rs:264 (all coverage from this test)

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

Source location: tests/codegen.rs:318 (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:336 (all coverage from this test)

fn main() -> () {
    'outer: loop {
        println!(1_i32);
        'inner: loop {
            println!(2_i32);
            break 'outer;
        }
    }
    println!(3_i32);
}

Source location: tests/codegen.rs:356 (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:377 (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:443 (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:461 (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:477 (all coverage from this test)

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

Source location: tests/coherence_orphan.rs:85 (all coverage from this test)

#[test]
fn mirror_FooStruct() {
    FormalityTest::new(crates![crate core {
        trait CoreTrait {}

        trait Mirror {
            type Assoc : [];
        }

        impl<T> Mirror for T {
            type Assoc = T;
        }
    },
    crate foo {
        struct FooStruct {}
        impl CoreTrait for <FooStruct as Mirror>::Assoc {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/coherence_orphan.rs:99 (all coverage from this test)

#[test]
fn covered_VecT() {
    FormalityTest::new(crates![crate core {
        trait CoreTrait<T> {}
        struct Vec<T> {}
    },
    crate foo {
        struct FooStruct {}
        impl<T> CoreTrait<FooStruct> for Vec<T> {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/coherence_orphan.rs:221 (all coverage from this test)

#[test]
fn CoreTraitLocal_for_AliasToKnown_in_Foo() {
    // TODO: see comment in `orphan_check` from prev commit
    FormalityTest::new(crates![crate core {
        trait CoreTrait<T> {}

        trait Unit {
            type Assoc : [];
        }

        impl<T> Unit for T {
            type Assoc = ();
        }
    },
    crate foo {
        struct FooStruct {}
        impl CoreTrait<FooStruct> for <() as Unit>::Assoc {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/coherence_overlap.rs:148 (all coverage from this test)

#[test]
fn neg_CoreTrait_for_CoreStruct_implies_no_overlap() {
    FormalityTest::new(crates![crate core {
        #![feature(negative_impls)]
        trait CoreTrait {}
        struct CoreStruct {}
        impl !CoreTrait for CoreStruct {}
    },
    crate foo {
        trait FooTrait {}
        impl<T> FooTrait for T where T: CoreTrait {}
        impl FooTrait for CoreStruct {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/coherence_overlap.rs:207 (all coverage from this test)

#[test]
fn u32_T_where_T_Not_impls() {
    FormalityTest::new(crates![crate core {
        trait Foo {}
        impl Foo for u32 {}
        impl<T> Foo for T where T: Not {}

        trait Not {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/coherence_overlap.rs:308 (all coverage from this test)

#[test]
fn is_local_unknowable_trait_ref() {
    FormalityTest::new(crates![crate core {
        trait Project {
            type Assoc: [];
        }

        impl<T> Project for T {
            type Assoc = T;
        }

        trait Foo<U> { }
    },
    crate foo {
        struct LocalType {}

        trait Overlap<U> {}
        impl<T, U> Overlap<U> for T
        where
            <T as Project>::Assoc: Foo<U> {}
        impl<T> Overlap<LocalType> for () {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/const_generics_rv_tsv_parse.rs:12 (all coverage from this test)

#[test]
fn parse_minirust_22() {
    FormalityTest::new(crates![crate Foo {
        trait Trait<const N> where type_of_const N is usize {}
        impl Trait<usize(22)> for u32 {}
    }])
    .skip_execute()
    .rustc_ok()
    .ok()
}

Source location: tests/consts.rs:11 (all coverage from this test)

#[test]
fn nonsense_rigid_const_bound() {
    FormalityTest::new(crates![crate Foo {
        // This where-clause is not *provable*, but it is well-formed.
        trait Foo where type_of_const true is u32 {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/consts.rs:23 (all coverage from this test)

#[test]
fn ok() {
    FormalityTest::new(crates![crate Foo {
        trait Foo<const C> where type_of_const C is bool {}
        trait Bar<const C> where type_of_const C is u32 {}

        impl<const C> Foo<C> for u32 where type_of_const C is bool {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/consts.rs:49 (all coverage from this test)

#[test]
fn holds() {
    FormalityTest::new(crates![crate Foo {
        trait Foo<const C> where type_of_const C is bool {}

        impl Foo<true> for u32 {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/consts.rs:58 (all coverage from this test)

#[test]
fn rigid_const_bound() {
    FormalityTest::new(crates![crate Foo {
        trait Foo where type_of_const true is bool {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/consts.rs:92 (all coverage from this test)

#[test]
fn generic_match() {
    FormalityTest::new(crates![crate Foo {
        trait Foo<const C> where type_of_const C is bool {}

        // Here, the impl matches the trait bound.
        impl<const C> Foo<C> for u32 where type_of_const C is bool {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/consts.rs:101 (all coverage from this test)

#[test]
fn multiple_type_of_const() {
    FormalityTest::new(crates![crate Foo {
        trait Foo<const C> where type_of_const C is bool, type_of_const C is u32 {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/decl_safety.rs:13 (all coverage from this test)

#[test]
fn unsafe_trait() {
    FormalityTest::new(crates![crate baguette {
        unsafe trait Foo {}
        unsafe impl Foo for u32 {}
    }])
    .skip_execute()
    .rustc_ok()
    .ok()
}

Source location: tests/decl_safety.rs:24 (all coverage from this test)

#[test]
fn safe_trait() {
    FormalityTest::new(crates![crate baguette {
        safe trait Foo {}
        safe impl Foo for u32 {}
    }])
    .skip_execute()
    .rustc_ok()
    .ok()
}

Source location: tests/decl_safety.rs:36 (all coverage from this test)

#[test]
fn unsafe_trait_negative_impl() {
    FormalityTest::new(crates![crate baguette {
        #![feature(negative_impls)]
        unsafe trait Foo {}
        impl !Foo for u32 {}
    }])
    .skip_execute()
    .rustc_ok()
    .ok()
}

Source location: tests/drop.rs:20 (all coverage from this test)

#[test]
fn drop_impl_simple_struct() {
    FormalityTest::new(crates![
        crate Foo {
            struct MyStruct {
                value: u32,
            }

            impl Drop for MyStruct {}
        }
    ])
    .skip_execute()
    .ok()
}

Source location: tests/drop.rs:38 (all coverage from this test)

#[test]
fn drop_impl_generic_struct() {
    FormalityTest::new(crates![
        crate Foo {
            trait Clone {}

            struct MyStruct<T> where T: Clone {
                value: T,
            }

            impl<T> Drop for MyStruct<T> where T: Clone {}
        }
    ])
    .skip_execute()
    .ok()
}

Source location: tests/drop.rs:54 (all coverage from this test)

#[test]
fn drop_impl_generic_no_where_clauses() {
    FormalityTest::new(crates![
        crate Foo {
            struct Wrapper<T> {
                value: T,
            }

            impl<T> Drop for Wrapper<T> {}
        }
    ])
    .skip_execute()
    .ok()
}

Source location: tests/drop.rs:78 (all coverage from this test)

#[test]
fn drop_impl_subset_where_clauses() {
    FormalityTest::new(crates![
        crate Foo {
            trait Clone {}
            trait Debug {}

            struct MyStruct<T> where T: Clone, T: Debug {
                value: T,
            }

            // Impl has no where-clauses — but the struct requires them.
            impl<T> Drop for MyStruct<T> {}
        }
    ])
    .skip_execute()
    .ok()
}

Source location: tests/drop.rs:94 (all coverage from this test)

#[test]
fn drop_impl_enum() {
    FormalityTest::new(crates![
        crate Foo {
            enum MyEnum {
                Variant{},
            }

            impl Drop for MyEnum {}
        }
    ])
    .skip_execute()
    .ok()
}

Source location: tests/drop.rs:111 (all coverage from this test)

#[test]
fn drop_impl_cross_crate_local() {
    FormalityTest::new(crates![
        crate a {
            struct MyStruct {
                value: u32,
            }

            impl Drop for MyStruct {}
        },
        crate b {}
    ])
    .skip_execute()
    .ok()
}

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

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

Source location: tests/functions.rs:25 (all coverage from this test)

Source location: tests/functions.rs:39 (all coverage from this test)

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:276 (all coverage from this test)

fn foo() -> () {
    let s1: S1<u8>;
}

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:899 (all coverage from this test)

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

Source location: tests/mir_typeck.rs:923 (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:941 (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:961 (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:988 (all coverage from this test)

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

Source location: tests/mir_typeck.rs:1047 (all coverage from this test)

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

Source location: tests/mir_typeck.rs:1116 (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:1142 (all coverage from this test)

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

Source location: tests/projection.rs:25 (all coverage from this test)

#[test]
fn normalize_basic() {
    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> {} => { <Vec<T> as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <Vec<!ty_1> as Iterator>::Item} }, Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> {} => { Iterator(Vec<T>), <Vec<T> as Iterator>::Item = T }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T), <T as Iterator>::Item = Foo } => { <T as Iterator>::Item = Foo }",
    ).assert_ok(
        expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]
    );

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <!ty_1 as Iterator>::Item} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T) } => { <T as Iterator>::Item = <T as Iterator>::Item }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = <U as Iterator>::Item }",
    ).assert_ok(
    expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }, Constraints { env: Env { variables: [!ty_1, ?ty_3, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => Vec<<!ty_1 as Iterator>::Item>, ?ty_3 => <!ty_1 as Iterator>::Item} }}"]);
}

Source location: tests/projection.rs:31 (all coverage from this test)

#[test]
fn normalize_basic() {
    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> {} => { <Vec<T> as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <Vec<!ty_1> as Iterator>::Item} }, Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> {} => { Iterator(Vec<T>), <Vec<T> as Iterator>::Item = T }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T), <T as Iterator>::Item = Foo } => { <T as Iterator>::Item = Foo }",
    ).assert_ok(
        expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]
    );

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <!ty_1 as Iterator>::Item} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T) } => { <T as Iterator>::Item = <T as Iterator>::Item }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = <U as Iterator>::Item }",
    ).assert_ok(
    expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }, Constraints { env: Env { variables: [!ty_1, ?ty_3, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => Vec<<!ty_1 as Iterator>::Item>, ?ty_3 => <!ty_1 as Iterator>::Item} }}"]);
}

Source location: tests/projection.rs:44 (all coverage from this test)

#[test]
fn normalize_basic() {
    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> {} => { <Vec<T> as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <Vec<!ty_1> as Iterator>::Item} }, Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> {} => { Iterator(Vec<T>), <Vec<T> as Iterator>::Item = T }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T), <T as Iterator>::Item = Foo } => { <T as Iterator>::Item = Foo }",
    ).assert_ok(
        expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]
    );

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <!ty_1 as Iterator>::Item} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T) } => { <T as Iterator>::Item = <T as Iterator>::Item }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = <U as Iterator>::Item }",
    ).assert_ok(
    expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }, Constraints { env: Env { variables: [!ty_1, ?ty_3, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => Vec<<!ty_1 as Iterator>::Item>, ?ty_3 => <!ty_1 as Iterator>::Item} }}"]);
}

Source location: tests/projection.rs:55 (all coverage from this test)

#[test]
fn normalize_basic() {
    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> {} => { <Vec<T> as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <Vec<!ty_1> as Iterator>::Item} }, Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> {} => { Iterator(Vec<T>), <Vec<T> as Iterator>::Item = T }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T), <T as Iterator>::Item = Foo } => { <T as Iterator>::Item = Foo }",
    ).assert_ok(
        expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]
    );

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <!ty_1 as Iterator>::Item} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> { Iterator(T) } => { <T as Iterator>::Item = <T as Iterator>::Item }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {} }}"]);

    test_where_clause(
        NORMALIZE_BASIC,
        "forall<T> exists<U> { Iterator(T) } => { <T as Iterator>::Item = <U as Iterator>::Item }",
    ).assert_ok(
    expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }, Constraints { env: Env { variables: [!ty_1, ?ty_3, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => Vec<<!ty_1 as Iterator>::Item>, ?ty_3 => <!ty_1 as Iterator>::Item} }}"]);
}

Source location: tests/projection.rs:89 (all coverage from this test)

#[test]
fn normalize_into_iterator() {
    test_where_clause(
        NORMALIZE_INTO_ITERATOR,
        "forall<T> exists<U> {} => { <Vec<T> as IntoIterator>::Item = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => <Vec<!ty_1> as IntoIterator>::Item} }, Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }}"]);
}

Source location: tests/projection.rs:112 (all coverage from this test)

#[test]
fn projection_equality() {
    test_where_clause(
        PROJECTION_EQUALITY,
        "exists<U> {} => { Trait1(S), <S as Trait1<>>::Type = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => u32} }, Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => <S as Trait1>::Type} }}"]);

    test_where_clause(PROJECTION_EQUALITY, "exists<U> {} => { Trait2(S, U) }")
        .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => u32} }, Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => <S as Trait1>::Type} }}"]);
}

Source location: tests/projection.rs:115 (all coverage from this test)

#[test]
fn projection_equality() {
    test_where_clause(
        PROJECTION_EQUALITY,
        "exists<U> {} => { Trait1(S), <S as Trait1<>>::Type = U }",
    )
    .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => u32} }, Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => <S as Trait1>::Type} }}"]);

    test_where_clause(PROJECTION_EQUALITY, "exists<U> {} => { Trait2(S, U) }")
        .assert_ok(expect_test::expect!["{Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => u32} }, Constraints { env: Env { variables: [?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_1 => <S as Trait1>::Type} }}"]);
}

Source location: tests/return_validation.rs:33 (all coverage from this test)

fn foo() -> () {
}

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:84 (all coverage from this test)

fn foo() -> u32 {
    loop {
    }
}

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/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 };
    }
}

Source location: tests/well_formed_trait_ref.rs:19 (all coverage from this test)

#[test]
fn dependent_where_clause() {
    FormalityTest::new(crates![crate foo {
        trait Trait1 {}

        trait Trait2 {}

        struct S1<T> where T: Trait1 {
            dummy: T,
        }

        struct S2<T> where T: Trait1, S1<T> : Trait2 {
            dummy: T,
        }
    }])
    .skip_execute()
    .ok()
}

Source location: tests/well_formed_trait_ref.rs:56 (all coverage from this test)

#[test]
fn lifetime_param() {
    FormalityTest::new(crates![crate foo {
        trait Trait1<'a> {}

        struct S1 {}

        struct S2<'a> where S1: Trait1<'a> {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/well_formed_trait_ref.rs:71 (all coverage from this test)

#[test]
fn static_lifetime_param() {
    FormalityTest::new(crates![crate foo {
        trait Trait1<'a> {}

        struct S1 {}

        impl Trait1<'static> for S1 {}

        struct S2 where S1: Trait1<'static> {}
    }])
    .skip_execute()
    .ok()
}

Source location: tests/well_formed_trait_ref.rs:86 (all coverage from this test)

#[test]
fn const_param() {
    FormalityTest::new(crates![crate foo {
        trait Trait1<const C> where type_of_const C is u32 {}

        struct S1 {}

        impl Trait1<u32(3)> for S1 {}

        struct S2 where S1: Trait1<u32(3)> {}
    }])
    .skip_execute()
    .ok()
}