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Positive coverage: check_fn_body / expr fn body

expr fn body
LineCoverageSource
88N/A(let typeck_env = TypeckEnv::for_fn_body(env, program, output_ty))
89✗(let initial_state = FlowState::for_fn_body(env, input_args)?)
9046(borrow_check(typeck_env, assumptions, initial_state, block) => ())
──────── ("expr fn body")
9275(check_fn_body(program, env, assumptions, MaybeFnBody::FnBody(FnBody::Expr(block)), input_args, output_ty) => ())

75 tests exercised this rule:

Source location: tests/borrowck.rs:113

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 1117 nodes shown)

Source location: tests/borrowck.rs:186

fn foo() -> u32 {
    let x: u32;
    if true {
        x = 1 _ u32;
    } else {
        x = 2 _ u32;
    }
    return x;
}
Proof tree
… (200 of 1048 nodes shown)

Source location: tests/borrowck.rs:253

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 1154 nodes shown)

Source location: tests/borrowck.rs:1968

fn min_problem_case_3<'a>(m: &mut 'a Map) -> &mut 'a Map {
    exists<'r0, 'r1> {
        let n: &mut 'r0 Map = &mut 'r0 *m;
        if true {
            return n;
        } else {
            let o: &mut 'r1 Map = &mut 'r1 *m;
            return o;
        }
    }
}
Proof tree
… (200 of 1324 nodes shown)

Source location: tests/borrowck.rs:2041

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 1234 nodes shown)

Source location: tests/borrowck.rs:2156

fn min_problem_case_3<'a>(m: &mut 'a Map) -> &mut 'a Map {
    exists<'r0, 'r1> {
        let n: &mut 'r0 Map = &mut 'r0 *m;
        if true {
        } else {
        }
        let o: &mut 'r1 Map = &mut 'r1 *m;
        return o;
    }
}
Proof tree
… (200 of 1295 nodes shown)

Source location: tests/borrowck.rs:2218

fn foo<'a, 'b>(v1: &'a u32) -> &'b u32
where
    'a: 'b,
{
    exists<'r0> {
        let v2: &'r0 u32 = v1;
        return v2;
    }
}
Proof tree
… (200 of 1099 nodes shown)

Source location: tests/borrowck.rs:2235

fn foo<'a, 'b, 'c>(v1: &'a u32) -> &'c u32
where
    'a: 'b,
    'b: 'c,
{
    return v1;
}
Proof tree
… (200 of 1052 nodes shown)

Source location: tests/borrowck.rs:2277

fn min_problem_case_4<'a>(list: &mut 'a Map, list2: &mut 'a Map) -> u32 {
    exists<'r0> {
        let num: &mut 'r0 u32 = &mut 'r0 (*list).value;
        list = &mut 'a *list2;
        num;
        return 0 _ u32;
    }
}
Proof tree
… (200 of 1262 nodes shown)

Source location: tests/borrowck.rs:2410

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: &mut 'l_q u32 = &mut 'loan_0 a;
        let p: &mut 'l_p u32 = &mut 'loan_1 a;
        if true {
            p = &mut 'loan_1 a;
            q = &mut 'loan_2 b;
        } else {
            p = &mut 'loan_3 b;
        }
        *q = 1 _ u32;
        return *p;
    }
}
Proof tree
… (200 of 1495 nodes shown)

Source location: tests/borrowck.rs:2600

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;
        }
    }
}

Proof trees omitted for the remaining 65 tests.

Source location: tests/borrowck.rs:2628

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

Source location: tests/borrowck.rs:2733

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

Source location: tests/borrowck.rs:2806

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:2828

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

Source location: tests/borrowck.rs:2856

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:2901

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

Source location: tests/borrowck.rs:2922

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:2976

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

Source location: tests/borrowck.rs:3095

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

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

Source location: tests/borrowck.rs:3120

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

Source location: tests/borrowck.rs:3137

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

Source location: tests/borrowck.rs:3157

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

Source location: tests/borrowck.rs:3225

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/codegen.rs:11

fn main() -> () {
    println!(22 _ i32);
}

Source location: tests/codegen.rs:24

fn main() -> () {
    println!(1 _ i32);
    println!(true);
    println!(false);
}

Source location: tests/codegen.rs:36

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

Source location: tests/codegen.rs:49

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

Source location: tests/codegen.rs:64

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

Source location: tests/codegen.rs:79

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

Source location: tests/codegen.rs:95

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

Source location: tests/codegen.rs:110

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

Source location: tests/codegen.rs:127

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

Source location: tests/codegen.rs:141

fn main() -> () {
    let p: Pair = Pair { x: 10 _ i32, y: 20 _ i32 };
    println!(p.x);
    println!(p.y);
}

Source location: tests/codegen.rs:171

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

Source location: tests/codegen.rs:188

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

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

Source location: tests/codegen.rs:218

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

Source location: tests/codegen.rs:238

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

Source location: tests/codegen.rs:251

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

Source location: tests/codegen.rs:264

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

Source location: tests/codegen.rs:318

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

Source location: tests/codegen.rs:336

fn main() -> () {
    'outer: loop {
        println!(1 _ i32);
        'inner: loop {
            println!(2 _ i32);
            break 'outer;
        }
    }
    println!(3 _ i32);
}

Source location: tests/codegen.rs:356

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

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

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

Source location: tests/codegen.rs:461

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

Source location: tests/codegen.rs:477

fn main() -> () {
    'a: {
        println!(1 _ i32);
        break 'a;
        println!(2 _ i32);
    }
    println!(3 _ i32);
}

Source location: tests/field_projections.rs:17

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

Source location: tests/mir_typeck.rs:13

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

Source location: tests/mir_typeck.rs:35

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:89

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

Source location: tests/mir_typeck.rs:105

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

Source location: tests/mir_typeck.rs:117

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

Source location: tests/mir_typeck.rs:133

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

Source location: tests/mir_typeck.rs:171

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

Source location: tests/mir_typeck.rs:191

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

Source location: tests/mir_typeck.rs:234

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:250

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

Source location: tests/mir_typeck.rs:345

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

Source location: tests/mir_typeck.rs:670

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

Source location: tests/mir_typeck.rs:693

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

Source location: tests/mir_typeck.rs:710

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:729

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:755

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

Source location: tests/mir_typeck.rs:802

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

Source location: tests/mir_typeck.rs:857

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

Source location: tests/mir_typeck.rs:882

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

Source location: tests/references.rs:36

Source location: tests/return_validation.rs:31

fn foo() -> () {
}

Source location: tests/return_validation.rs:48

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

Source location: tests/return_validation.rs:79

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

Source location: tests/return_validation.rs:111

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

Source location: tests/return_validation.rs:124

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

Source location: tests/well_formed_struct.rs:17

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