6 files changed, 201 insertions, 183 deletions

diff --git a/tests/multiple_generics.rs b/tests/multiple_generics.rs
index c8c76ba..6e744f4 100644
--- a/tests/multiple_generics.rs
+++ b/tests/multiple_generics.rs
@@ -3,79 +3,67 @@
 //! Tests if multiple generic parameters work, for the case that lifetimes are independent of mapping functions.
 //! For simplicity, it just creates a `FreeResult` based on `Result`.
 
+use higher::{Apply, Bind, Functor};
 use higher_free_macro::free;
-use higher::{Functor, Bind, Apply};
 
 free!(FreeResult<O,E>, Result<FreeResult<O,E>,E>);
 
-
 //just to appease clippy without disabling the lint....
 macro_rules! assert_nearly_equal {
     ($a:expr, $b:expr, $c:expr) => {
-        assert!((($a)-($b)).abs() < $c)
+        assert!((($a) - ($b)).abs() < $c)
     };
 }
 
 #[test]
-fn test_multiple_generics(){
-    let m : FreeResult<_, String> = FreeResult::lift_f(Ok(37u32));
-    let m = m.fmap(|x| x*2);
+fn test_multiple_generics() {
+    let m: FreeResult<_, String> = FreeResult::lift_f(Ok(37u32));
+    let m = m.fmap(|x| x * 2);
     let m = m.bind(|x| FreeResult::Free(Box::new(Ok(FreeResult::Pure(x)))));
-    let f = FreeResult::Pure((|x| x*3).into());
+    let f = FreeResult::Pure((|x| x * 3).into());
     let m = m.apply(f);
     match m {
-        FreeResult::Free(b) => {
-            match *b {
-                Ok(FreeResult::Free(b)) => {
-                    match *b {
-                        Ok(FreeResult::Pure(x)) => assert_eq!(x, 37*6),
-                        _ => unreachable!()
-                    }
-                }
-                _ => unreachable!()
-            }
-        }
-        FreeResult::Pure(_) => unreachable!()
+        FreeResult::Free(b) => match *b {
+            Ok(FreeResult::Free(b)) => match *b {
+                Ok(FreeResult::Pure(x)) => assert_eq!(x, 37 * 6),
+                _ => unreachable!(),
+            },
+            _ => unreachable!(),
+        },
+        FreeResult::Pure(_) => unreachable!(),
     }
 }
 
 #[test]
-fn test_multiple_generics2(){
-    let m : FreeResult<_, String> = FreeResult::lift_f(Ok(37u32));
+fn test_multiple_generics2() {
+    let m: FreeResult<_, String> = FreeResult::lift_f(Ok(37u32));
     let m = m.bind(|_| FreeResult::<u32, _>::lift_f(Err("An early out.".to_owned())));
-    match m{
-        FreeResult::Free(m) => {
-            match &*m {
-                Ok(FreeResult::Free(m)) => {
-                    match &**m {
-                        Err(e) => assert_eq!(e, "An early out."),
-                        _ => unreachable!()
-                    }
-                },
-                _ => unreachable!()
-            }
+    match m {
+        FreeResult::Free(m) => match &*m {
+            Ok(FreeResult::Free(m)) => match &**m {
+                Err(e) => assert_eq!(e, "An early out."),
+                _ => unreachable!(),
+            },
+            _ => unreachable!(),
         },
-        FreeResult::Pure(_) => unreachable!()
+        FreeResult::Pure(_) => unreachable!(),
     }
 }
 
 #[test]
-fn test_multiple_generics3(){
-    let m : FreeResult<_, String> = FreeResult::lift_f(Ok(37u32));
-    let f : FreeResult<_, String> = FreeResult::Pure(|x : u32| -> f64 {f64::from(x)*0.5f64}).fmap(Into::into);
+fn test_multiple_generics3() {
+    let m: FreeResult<_, String> = FreeResult::lift_f(Ok(37u32));
+    let f: FreeResult<_, String> =
+        FreeResult::Pure(|x: u32| -> f64 { f64::from(x) * 0.5f64 }).fmap(Into::into);
     let m = m.apply(f);
-    match m{
-        FreeResult::Free(m) => {
-            match &*m{
-                Ok(k) => {
-                    match k {
-                        FreeResult::Pure(k) => assert_nearly_equal!(18.5f64, *k, f64::EPSILON),
-                        FreeResult::Free(_) => unreachable!(),
-                    }
-                }
-                Err(_) => unreachable!(),
-            }
+    match m {
+        FreeResult::Free(m) => match &*m {
+            Ok(k) => match k {
+                FreeResult::Pure(k) => assert_nearly_equal!(18.5f64, *k, f64::EPSILON),
+                FreeResult::Free(_) => unreachable!(),
+            },
+            Err(_) => unreachable!(),
         },
-        FreeResult::Pure(_) => unreachable!()
+        FreeResult::Pure(_) => unreachable!(),
     }
-}
\ No newline at end of file
+}
diff --git a/tests/multiple_generics_lifetime.rs b/tests/multiple_generics_lifetime.rs
index 48a9bd1..8d24f0e 100644
--- a/tests/multiple_generics_lifetime.rs
+++ b/tests/multiple_generics_lifetime.rs
@@ -2,32 +2,39 @@
 #![deny(clippy::all)]
 //! Tests if multiple generic parameters work, if the return value's lifetime depends on the mapping function lifetime.
 
-use std::rc::Rc;
+use higher::{Apply, Bind, Functor};
 use higher_free_macro::free;
-use higher::{Functor, Bind, Apply};
+use std::rc::Rc;
 
 #[derive(Clone)]
-struct TestFunctor<'a, 'b, A, B>{
-    data : &'b B,
-    next : Rc<dyn Fn(i32)->A + 'a>,
+struct TestFunctor<'a, 'b, A, B> {
+    data: &'b B,
+    next: Rc<dyn Fn(i32) -> A + 'a>,
 }
 
-impl<'a,'b,A : 'a,B> Functor<'a,A> for TestFunctor<'a, 'b, A, B>{
+impl<'a, 'b, A: 'a, B> Functor<'a, A> for TestFunctor<'a, 'b, A, B> {
     type Target<T> = TestFunctor<'a, 'b, T, B>;
 
     fn fmap<C, F>(self, f: F) -> Self::Target<C>
     where
-        F: Fn(A) -> C + 'a {
-        TestFunctor{ data : self.data, next : Rc::new(move |x| f((self.next)(x)))}
+        F: Fn(A) -> C + 'a,
+    {
+        TestFunctor {
+            data: self.data,
+            next: Rc::new(move |x| f((self.next)(x))),
+        }
     }
 }
 
 free!(<'xx>, FreeTest<'xx,'yy,AA,BB>, TestFunctor<'xx, 'yy, FreeTest<'xx, 'yy, AA, BB>, BB>);
 
 #[test]
-fn test_lifetime_multiple_generics(){
-    let free_monad = FreeTest::lift_f(TestFunctor{ data : &"Listening to NSP while writing this.", next : Rc::new(|x| f64::from(x)*0.5f64)});
-    let functions = FreeTest::Pure(|x : f64| -> bool {x > 0.7f64} ).fmap(Into::into);
+fn test_lifetime_multiple_generics() {
+    let free_monad = FreeTest::lift_f(TestFunctor {
+        data: &"Listening to NSP while writing this.",
+        next: Rc::new(|x| f64::from(x) * 0.5f64),
+    });
+    let functions = FreeTest::Pure(|x: f64| -> bool { x > 0.7f64 }).fmap(Into::into);
     let free_monad_after_apply = free_monad.apply(functions);
     match free_monad_after_apply {
         FreeTest::Free(m) => {
@@ -35,44 +42,51 @@ fn test_lifetime_multiple_generics(){
             let x = m.next.clone();
             let y = m.next.clone();
             let m1 = x(1);
-            match m1{
+            match m1 {
                 FreeTest::Pure(v) => assert!(!v),
                 FreeTest::Free(_) => unreachable!(),
             }
             let m2 = y(3);
-            match m2{
+            match m2 {
                 FreeTest::Pure(v) => assert!(v),
                 FreeTest::Free(_) => unreachable!(),
             }
-        },
-        FreeTest::Pure(_) => unreachable!()
+        }
+        FreeTest::Pure(_) => unreachable!(),
     }
 }
 
 //just to appease clippy without disabling the lint....
 macro_rules! assert_nearly_equal {
     ($a:expr, $b:expr, $c:expr) => {
-        assert!((($a)-($b)).abs() < $c)
+        assert!((($a) - ($b)).abs() < $c)
     };
 }
 
 #[test]
-fn test_lifetime_multiple_generics_bind(){
-    let m = FreeTest::lift_f(TestFunctor{ data : &"Listening to Soilwork while writing this.", next : Rc::new(|x| f64::from(x)*0.5f64)});
-    let m = m.bind(|x : f64| -> FreeTest<_,_> {
+fn test_lifetime_multiple_generics_bind() {
+    let m = FreeTest::lift_f(TestFunctor {
+        data: &"Listening to Soilwork while writing this.",
+        next: Rc::new(|x| f64::from(x) * 0.5f64),
+    });
+    let m = m.bind(|x: f64| -> FreeTest<_, _> {
         if x < 0.0 {
             FreeTest::Pure(x.abs().floor())
         } else {
-            FreeTest::lift_f(TestFunctor{data : &"Now it's Little Big.", next : Rc::new(move |y| f64::from(y) + x.ceil())})
-        }});
-    match m{
+            FreeTest::lift_f(TestFunctor {
+                data: &"Now it's Little Big.",
+                next: Rc::new(move |y| f64::from(y) + x.ceil()),
+            })
+        }
+    });
+    match m {
         FreeTest::Free(m) => {
             assert_eq!(m.data, &"Listening to Soilwork while writing this.");
-            match (m.next)(-3){
+            match (m.next)(-3) {
                 FreeTest::Pure(v) => assert_nearly_equal!(v, 1f64, f64::EPSILON),
                 FreeTest::Free(_) => unreachable!(),
             }
-            match (m.next)(3){
+            match (m.next)(3) {
                 FreeTest::Pure(_) => unreachable!(),
                 FreeTest::Free(v) => {
                     assert_eq!(v.data, &"Now it's Little Big.");
@@ -80,9 +94,9 @@ fn test_lifetime_multiple_generics_bind(){
                         FreeTest::Pure(v) => assert_nearly_equal!(v, 7f64, f64::EPSILON),
                         FreeTest::Free(_) => unreachable!(),
                     }
-                },
+                }
             }
-        },
-        FreeTest::Pure(_) => unreachable!()
+        }
+        FreeTest::Pure(_) => unreachable!(),
     }
-}
\ No newline at end of file
+}
diff --git a/tests/trivial.rs b/tests/trivial.rs
index 5bc1e91..d3a71f3 100644
--- a/tests/trivial.rs
+++ b/tests/trivial.rs
@@ -1,8 +1,8 @@
 #![deny(clippy::pedantic)]
 #![deny(clippy::all)]
 //! A trivial test functor. Not holding any data, so this is basically just a linked list of free-nodes.
+use higher::{Apply, Bind, Functor};
 use higher_free_macro::free;
-use higher::{Functor, Bind, Apply};
 
 #[derive(Functor, Clone)]
 struct TrivialFunctor<A>(A);
@@ -12,30 +12,22 @@ free!(TrivialFreeMonad<A>, TrivialFunctor<TrivialFreeMonad<A>>);
 #[test]
 fn test_trivial_functor() {
     let m = TrivialFreeMonad::lift_f(TrivialFunctor(37u32));
-    let m = m.fmap(|x| x*2);
+    let m = m.fmap(|x| x * 2);
     let m = m.bind(|x| TrivialFreeMonad::Free(Box::new(TrivialFunctor(TrivialFreeMonad::Pure(x)))));
-    let f = TrivialFreeMonad::Pure((|x| x*3).into());
+    let f = TrivialFreeMonad::Pure((|x| x * 3).into());
     let m = m.apply(f);
     match m {
-        TrivialFreeMonad::Free(b) => {
-            match *b {
-                TrivialFunctor(f) => {
-                    match f {
-                        TrivialFreeMonad::Free(b) => {
-                            match *b {
-                                TrivialFunctor(f) => {
-                                    match f{
-                                        TrivialFreeMonad::Pure(x) => assert_eq!(x, 37*6),
-                                        TrivialFreeMonad::Free(_) => unreachable!()
-                                    }
-                                }
-                            }
-                        },
-                        TrivialFreeMonad::Pure(_) => unreachable!()
-                    }
-                }
-            }
-        }
-        TrivialFreeMonad::Pure(_) => unreachable!()
+        TrivialFreeMonad::Free(b) => match *b {
+            TrivialFunctor(f) => match f {
+                TrivialFreeMonad::Free(b) => match *b {
+                    TrivialFunctor(f) => match f {
+                        TrivialFreeMonad::Pure(x) => assert_eq!(x, 37 * 6),
+                        TrivialFreeMonad::Free(_) => unreachable!(),
+                    },
+                },
+                TrivialFreeMonad::Pure(_) => unreachable!(),
+            },
+        },
+        TrivialFreeMonad::Pure(_) => unreachable!(),
     }
-}
\ No newline at end of file
+}
diff --git a/tests/trivial_lifetime.rs b/tests/trivial_lifetime.rs
index 4f7d094..04d2d4a 100644
--- a/tests/trivial_lifetime.rs
+++ b/tests/trivial_lifetime.rs
@@ -1,39 +1,44 @@
 #![deny(clippy::pedantic)]
 #![deny(clippy::all)]
 //! Tests if a trivial functor, which's lifetime depends on the mapping function, works.
-use std::rc::Rc;
-use higher::{Functor, Bind};
+use higher::{Bind, Functor};
 use higher_free_macro::free;
+use std::rc::Rc;
 
 #[derive(Clone)]
-struct TrivWithLifetime<'a,A,B>{
-    next : Rc<dyn Fn(B)->A + 'a>,
+struct TrivWithLifetime<'a, A, B> {
+    next: Rc<dyn Fn(B) -> A + 'a>,
 }
 
-impl<'a,A : 'a,B : 'a> Functor<'a,A> for TrivWithLifetime<'a,A,B> {
-    type Target<T> = TrivWithLifetime<'a,T,B>;
+impl<'a, A: 'a, B: 'a> Functor<'a, A> for TrivWithLifetime<'a, A, B> {
+    type Target<T> = TrivWithLifetime<'a, T, B>;
 
     fn fmap<C, F>(self, f: F) -> Self::Target<C>
     where
-        F: Fn(A) -> C + 'a {
-        TrivWithLifetime{ next : Rc::new(move |x| f((self.next)(x)))}
+        F: Fn(A) -> C + 'a,
+    {
+        TrivWithLifetime {
+            next: Rc::new(move |x| f((self.next)(x))),
+        }
     }
 }
 
 free!(<'a>, FreeTriv<'a,A,B>, TrivWithLifetime<'a,FreeTriv<'a,A,B>,B>);
 
 #[test]
-fn test_trivial_with_lifetime(){
-    let f = FreeTriv::lift_f(TrivWithLifetime{next : Rc::new(i32::unsigned_abs)});
+fn test_trivial_with_lifetime() {
+    let f = FreeTriv::lift_f(TrivWithLifetime {
+        next: Rc::new(i32::unsigned_abs),
+    });
     let f = f.bind(FreeTriv::Pure);
     match f {
         FreeTriv::Free(f) => {
             let n = (f.next)(-4);
             match n {
-                FreeTriv::Pure(v) => assert_eq!(v,4u32),
+                FreeTriv::Pure(v) => assert_eq!(v, 4u32),
                 FreeTriv::Free(_) => unreachable!(),
             }
-        },
-        FreeTriv::Pure(_) => unreachable!()
+        }
+        FreeTriv::Pure(_) => unreachable!(),
     }
-}
\ No newline at end of file
+}
diff --git a/tests/vector.rs b/tests/vector.rs
index 2b2f4b2..f22a243 100644
--- a/tests/vector.rs
+++ b/tests/vector.rs
@@ -3,74 +3,80 @@
 //! Tests if creating a Free Monad for a Vec works. Not sure if this is useful in any way.
 //! It is a nice illustration that Free Monads are tree-like though.
 
+use higher::{Apply, Bind, Functor};
 use higher_free_macro::free;
-use higher::{Functor, Bind, Apply};
 
 free!(FreeVec<A>, Vec<FreeVec<A>>);
 
-
 //just to appease clippy without disabling the lint....
 macro_rules! assert_nearly_equal {
     ($a:expr, $b:expr, $c:expr) => {
-        assert!((($a)-($b)).abs() < $c)
+        assert!((($a) - ($b)).abs() < $c)
     };
 }
 
 #[test]
-fn test_vector(){
-    let free_monad = FreeVec::lift_f(vec![2,3,4]);
-    let free_monad_after_fmap = free_monad.fmap(|x| x*2);
-    let free_monad_after_bind = free_monad_after_fmap.bind(|x| if x%3 == 0 {FreeVec::Pure(x)} else {FreeVec::lift_f(vec![x,x+1])});
-    let functions = FreeVec::lift_f(vec![(|x| f64::from(x) / 3.0) as fn(u32)->f64, (|x| f64::from(x+2)) as fn(u32)->f64]);
+fn test_vector() {
+    let free_monad = FreeVec::lift_f(vec![2, 3, 4]);
+    let free_monad_after_fmap = free_monad.fmap(|x| x * 2);
+    let free_monad_after_bind = free_monad_after_fmap.bind(|x| {
+        if x % 3 == 0 {
+            FreeVec::Pure(x)
+        } else {
+            FreeVec::lift_f(vec![x, x + 1])
+        }
+    });
+    let functions = FreeVec::lift_f(vec![
+        (|x| f64::from(x) / 3.0) as fn(u32) -> f64,
+        (|x| f64::from(x + 2)) as fn(u32) -> f64,
+    ]);
     let free_monad_after_apply = free_monad_after_bind.apply(functions.fmap(Into::into));
     match free_monad_after_apply {
-        FreeVec::Free(v) => {
-            match &**v{
-                [FreeVec::Free(left), FreeVec::Free(right)] => {
-                    match &***left {
-                        [FreeVec::Free(left), FreeVec::Pure(middle), FreeVec::Free(right)] => {
-                            match &***left {
-                                [FreeVec::Pure(left), FreeVec::Pure(right)] => {
-                                    assert_nearly_equal!(4.0f64/3.0f64, *left, f64::EPSILON);
-                                    assert_nearly_equal!(5.0f64/3.0f64, *right, f64::EPSILON);
-                                },
-                                _ => unreachable!()
+        FreeVec::Free(v) => match &**v {
+            [FreeVec::Free(left), FreeVec::Free(right)] => {
+                match &***left {
+                    [FreeVec::Free(left), FreeVec::Pure(middle), FreeVec::Free(right)] => {
+                        match &***left {
+                            [FreeVec::Pure(left), FreeVec::Pure(right)] => {
+                                assert_nearly_equal!(4.0f64 / 3.0f64, *left, f64::EPSILON);
+                                assert_nearly_equal!(5.0f64 / 3.0f64, *right, f64::EPSILON);
                             }
-                            assert_nearly_equal!(2.0f64, *middle, f64::EPSILON);
-                            match &***right {
-                                [FreeVec::Pure(left),FreeVec::Pure(right)] => {
-                                    assert_nearly_equal!(8.0f64/3.0f64, *left, f64::EPSILON);
-                                    assert_nearly_equal!(3.0f64, *right, f64::EPSILON);
-                                },
-                                _ => unreachable!()
+                            _ => unreachable!(),
+                        }
+                        assert_nearly_equal!(2.0f64, *middle, f64::EPSILON);
+                        match &***right {
+                            [FreeVec::Pure(left), FreeVec::Pure(right)] => {
+                                assert_nearly_equal!(8.0f64 / 3.0f64, *left, f64::EPSILON);
+                                assert_nearly_equal!(3.0f64, *right, f64::EPSILON);
                             }
-                        },
-                        _ => unreachable!()
+                            _ => unreachable!(),
+                        }
                     }
-                    match &***right {
-                        [FreeVec::Free(left),FreeVec::Pure(middle),FreeVec::Free(right)] => {
-                            match &***left {
-                                [FreeVec::Pure(left),FreeVec::Pure(right)] => {
-                                    assert_nearly_equal!(6.0f64, *left, f64::EPSILON);
-                                    assert_nearly_equal!(7.0f64, *right, f64::EPSILON);
-                                },
-                                _ => unreachable!()
+                    _ => unreachable!(),
+                }
+                match &***right {
+                    [FreeVec::Free(left), FreeVec::Pure(middle), FreeVec::Free(right)] => {
+                        match &***left {
+                            [FreeVec::Pure(left), FreeVec::Pure(right)] => {
+                                assert_nearly_equal!(6.0f64, *left, f64::EPSILON);
+                                assert_nearly_equal!(7.0f64, *right, f64::EPSILON);
                             }
-                            assert_nearly_equal!(8.0f64, *middle, f64::EPSILON);
-                            match &***right {
-                                [FreeVec::Pure(left),FreeVec::Pure(right)] => {
-                                    assert_nearly_equal!(10.0f64, *left, f64::EPSILON);
-                                    assert_nearly_equal!(11.0f64, *right, f64::EPSILON);
-                                },
-                                _ => unreachable!()
+                            _ => unreachable!(),
+                        }
+                        assert_nearly_equal!(8.0f64, *middle, f64::EPSILON);
+                        match &***right {
+                            [FreeVec::Pure(left), FreeVec::Pure(right)] => {
+                                assert_nearly_equal!(10.0f64, *left, f64::EPSILON);
+                                assert_nearly_equal!(11.0f64, *right, f64::EPSILON);
                             }
-                        },
-                        _ => unreachable!()
+                            _ => unreachable!(),
+                        }
                     }
-                },
-                _ => unreachable!()
+                    _ => unreachable!(),
+                }
             }
-        }
-        FreeVec::Pure(_) => unreachable!()
+            _ => unreachable!(),
+        },
+        FreeVec::Pure(_) => unreachable!(),
     }
-}
\ No newline at end of file
+}
diff --git a/tests/with_lifetimes.rs b/tests/with_lifetimes.rs
index 697fc74..ee35274 100644
--- a/tests/with_lifetimes.rs
+++ b/tests/with_lifetimes.rs
@@ -3,34 +3,47 @@
 //! Test for the case that the Functor the Free Monad is based on has lifetime parameters that do not depend on the
 //! lifetime of the mapping function in the Functor implementation.
 
+use higher::{Apply, Bind, Functor};
 use higher_free_macro::free;
-use higher::{Functor, Bind, Apply};
 
 #[derive(Functor, Clone)]
-struct WithLifetimes<'a,'b, A>{
-    s1 : &'a str,
-    s2 : &'b str,
-    next : A
+struct WithLifetimes<'a, 'b, A> {
+    s1: &'a str,
+    s2: &'b str,
+    next: A,
 }
 
-free!(FreeWithLifetimes<'a,'b,A>, WithLifetimes<'a,'b,FreeWithLifetimes<'a,'b,A>>);
+free!(
+    FreeWithLifetimes<'a, 'b, A>,
+    WithLifetimes<'a, 'b, FreeWithLifetimes<'a, 'b, A>>
+);
 
-fn lifetime_helper<'a,'b>(s1 : &'a str, s2 : &'b str) -> FreeWithLifetimes<'a, 'b, u32>{
-    let fv = FreeWithLifetimes::lift_f(WithLifetimes{ s1, s2, next: 15});
-    fv.fmap(|x| x+1)
+fn lifetime_helper<'a, 'b>(s1: &'a str, s2: &'b str) -> FreeWithLifetimes<'a, 'b, u32> {
+    let fv = FreeWithLifetimes::lift_f(WithLifetimes { s1, s2, next: 15 });
+    fv.fmap(|x| x + 1)
 }
 
 #[test]
-fn test_with_lifetimes(){
+fn test_with_lifetimes() {
     let s1 = "First";
     let s2 = "Second";
     let fv = lifetime_helper(s1, s2);
     let s3 = "Third";
     let s4 = "Fourth";
-    let fv = fv.bind(|x| FreeWithLifetimes::lift_f(WithLifetimes{ s1: s3, s2: s4, next : x+2}));
+    let fv = fv.bind(|x| {
+        FreeWithLifetimes::lift_f(WithLifetimes {
+            s1: s3,
+            s2: s4,
+            next: x + 2,
+        })
+    });
     let s5 = "Fifth";
     let s6 = "Sixth";
-    let fa = FreeWithLifetimes::lift_f(WithLifetimes{s1: s5, s2: s6, next : (|x| x+3).into()});
+    let fa = FreeWithLifetimes::lift_f(WithLifetimes {
+        s1: s5,
+        s2: s6,
+        next: (|x| x + 3).into(),
+    });
     let fv = fv.apply(fa);
     match fv {
         FreeWithLifetimes::Free(v) => {
@@ -48,15 +61,15 @@ fn test_with_lifetimes(){
                                 FreeWithLifetimes::Free(_) => unreachable!(),
                                 FreeWithLifetimes::Pure(a) => {
                                     assert_eq!(a, 21);
-                                },
+                                }
                             }
-                        },
+                        }
                         FreeWithLifetimes::Pure(_) => unreachable!(),
                     }
-                },
+                }
                 FreeWithLifetimes::Pure(_) => unreachable!(),
             }
-        },
-        FreeWithLifetimes::Pure(_) => unreachable!()
+        }
+        FreeWithLifetimes::Pure(_) => unreachable!(),
     }
-}
\ No newline at end of file
+}