From 374eb6fe2e35791e4f18e415cd8d761d89a8bec5 Mon Sep 17 00:00:00 2001
From: Son Ho
Date: Mon, 3 Jun 2024 21:29:08 +0200
Subject: Add a test

---
 tests/lean/NoNestedBorrows.lean | 73 ++++++++++++++++++++++-------------------
 1 file changed, 39 insertions(+), 34 deletions(-)

(limited to 'tests/lean/NoNestedBorrows.lean')

diff --git a/tests/lean/NoNestedBorrows.lean b/tests/lean/NoNestedBorrows.lean
index 5ae22055..0f11092d 100644
--- a/tests/lean/NoNestedBorrows.lean
+++ b/tests/lean/NoNestedBorrows.lean
@@ -258,16 +258,21 @@ def choose_test : Result Unit :=
 def test_char : Result Char :=
   Result.ok 'a'
 
+/- [no_nested_borrows::panic_mut_borrow]:
+   Source: 'tests/src/no_nested_borrows.rs', lines 217:0-217:36 -/
+def panic_mut_borrow (i : U32) : Result U32 :=
+  Result.fail .panic
+
 mutual
 
 /- [no_nested_borrows::Tree]
-   Source: 'tests/src/no_nested_borrows.rs', lines 217:0-217:16 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 222:0-222:16 -/
 inductive Tree (T : Type) :=
 | Leaf : T → Tree T
 | Node : T → NodeElem T → Tree T → Tree T
 
 /- [no_nested_borrows::NodeElem]
-   Source: 'tests/src/no_nested_borrows.rs', lines 222:0-222:20 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 227:0-227:20 -/
 inductive NodeElem (T : Type) :=
 | Cons : Tree T → NodeElem T → NodeElem T
 | Nil : NodeElem T
@@ -275,7 +280,7 @@ inductive NodeElem (T : Type) :=
 end
 
 /- [no_nested_borrows::list_length]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 257:0-257:48 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 262:0-262:48 -/
 divergent def list_length (T : Type) (l : List T) : Result U32 :=
   match l with
   | List.Cons _ l1 => do
@@ -284,7 +289,7 @@ divergent def list_length (T : Type) (l : List T) : Result U32 :=
   | List.Nil => Result.ok 0#u32
 
 /- [no_nested_borrows::list_nth_shared]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 265:0-265:62 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 270:0-270:62 -/
 divergent def list_nth_shared (T : Type) (l : List T) (i : U32) : Result T :=
   match l with
   | List.Cons x tl =>
@@ -296,7 +301,7 @@ divergent def list_nth_shared (T : Type) (l : List T) (i : U32) : Result T :=
   | List.Nil => Result.fail .panic
 
 /- [no_nested_borrows::list_nth_mut]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 281:0-281:67 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 286:0-286:67 -/
 divergent def list_nth_mut
   (T : Type) (l : List T) (i : U32) : Result (T × (T → Result (List T))) :=
   match l with
@@ -318,7 +323,7 @@ divergent def list_nth_mut
   | List.Nil => Result.fail .panic
 
 /- [no_nested_borrows::list_rev_aux]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 297:0-297:63 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 302:0-302:63 -/
 divergent def list_rev_aux
   (T : Type) (li : List T) (lo : List T) : Result (List T) :=
   match li with
@@ -326,13 +331,13 @@ divergent def list_rev_aux
   | List.Nil => Result.ok lo
 
 /- [no_nested_borrows::list_rev]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 311:0-311:42 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 316:0-316:42 -/
 def list_rev (T : Type) (l : List T) : Result (List T) :=
   let (li, _) := core.mem.replace (List T) l List.Nil
   list_rev_aux T li List.Nil
 
 /- [no_nested_borrows::test_list_functions]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 316:0-316:28 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 321:0-321:28 -/
 def test_list_functions : Result Unit :=
   do
   let l := List.Cons 2#i32 List.Nil
@@ -379,7 +384,7 @@ def test_list_functions : Result Unit :=
 #assert (test_list_functions == Result.ok ())
 
 /- [no_nested_borrows::id_mut_pair1]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 332:0-332:89 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 337:0-337:89 -/
 def id_mut_pair1
   (T1 T2 : Type) (x : T1) (y : T2) :
   Result ((T1 × T2) × ((T1 × T2) → Result (T1 × T2)))
@@ -387,7 +392,7 @@ def id_mut_pair1
   Result.ok ((x, y), Result.ok)
 
 /- [no_nested_borrows::id_mut_pair2]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 336:0-336:88 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 341:0-341:88 -/
 def id_mut_pair2
   (T1 T2 : Type) (p : (T1 × T2)) :
   Result ((T1 × T2) × ((T1 × T2) → Result (T1 × T2)))
@@ -396,7 +401,7 @@ def id_mut_pair2
   Result.ok ((t, t1), Result.ok)
 
 /- [no_nested_borrows::id_mut_pair3]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 340:0-340:93 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 345:0-345:93 -/
 def id_mut_pair3
   (T1 T2 : Type) (x : T1) (y : T2) :
   Result ((T1 × T2) × (T1 → Result T1) × (T2 → Result T2))
@@ -404,7 +409,7 @@ def id_mut_pair3
   Result.ok ((x, y), Result.ok, Result.ok)
 
 /- [no_nested_borrows::id_mut_pair4]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 344:0-344:92 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 349:0-349:92 -/
 def id_mut_pair4
   (T1 T2 : Type) (p : (T1 × T2)) :
   Result ((T1 × T2) × (T1 → Result T1) × (T2 → Result T2))
@@ -413,37 +418,37 @@ def id_mut_pair4
   Result.ok ((t, t1), Result.ok, Result.ok)
 
 /- [no_nested_borrows::StructWithTuple]
-   Source: 'tests/src/no_nested_borrows.rs', lines 351:0-351:34 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 356:0-356:34 -/
 structure StructWithTuple (T1 T2 : Type) where
   p : (T1 × T2)
 
 /- [no_nested_borrows::new_tuple1]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 355:0-355:48 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 360:0-360:48 -/
 def new_tuple1 : Result (StructWithTuple U32 U32) :=
   Result.ok { p := (1#u32, 2#u32) }
 
 /- [no_nested_borrows::new_tuple2]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 359:0-359:48 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 364:0-364:48 -/
 def new_tuple2 : Result (StructWithTuple I16 I16) :=
   Result.ok { p := (1#i16, 2#i16) }
 
 /- [no_nested_borrows::new_tuple3]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 363:0-363:48 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 368:0-368:48 -/
 def new_tuple3 : Result (StructWithTuple U64 I64) :=
   Result.ok { p := (1#u64, 2#i64) }
 
 /- [no_nested_borrows::StructWithPair]
-   Source: 'tests/src/no_nested_borrows.rs', lines 368:0-368:33 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 373:0-373:33 -/
 structure StructWithPair (T1 T2 : Type) where
   p : Pair T1 T2
 
 /- [no_nested_borrows::new_pair1]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 372:0-372:46 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 377:0-377:46 -/
 def new_pair1 : Result (StructWithPair U32 U32) :=
   Result.ok { p := { x := 1#u32, y := 2#u32 } }
 
 /- [no_nested_borrows::test_constants]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 380:0-380:23 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 385:0-385:23 -/
 def test_constants : Result Unit :=
   do
   let swt ← new_tuple1
@@ -473,7 +478,7 @@ def test_constants : Result Unit :=
 #assert (test_constants == Result.ok ())
 
 /- [no_nested_borrows::test_weird_borrows1]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 389:0-389:28 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 394:0-394:28 -/
 def test_weird_borrows1 : Result Unit :=
   Result.ok ()
 
@@ -481,7 +486,7 @@ def test_weird_borrows1 : Result Unit :=
 #assert (test_weird_borrows1 == Result.ok ())
 
 /- [no_nested_borrows::test_mem_replace]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 399:0-399:37 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 404:0-404:37 -/
 def test_mem_replace (px : U32) : Result U32 :=
   let (y, _) := core.mem.replace U32 px 1#u32
   if ¬ (y = 0#u32)
@@ -489,71 +494,71 @@ def test_mem_replace (px : U32) : Result U32 :=
   else Result.ok 2#u32
 
 /- [no_nested_borrows::test_shared_borrow_bool1]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 406:0-406:47 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 411:0-411:47 -/
 def test_shared_borrow_bool1 (b : Bool) : Result U32 :=
   if b
   then Result.ok 0#u32
   else Result.ok 1#u32
 
 /- [no_nested_borrows::test_shared_borrow_bool2]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 419:0-419:40 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 424:0-424:40 -/
 def test_shared_borrow_bool2 : Result U32 :=
   Result.ok 0#u32
 
 /- [no_nested_borrows::test_shared_borrow_enum1]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 434:0-434:52 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 439:0-439:52 -/
 def test_shared_borrow_enum1 (l : List U32) : Result U32 :=
   match l with
   | List.Cons _ _ => Result.ok 1#u32
   | List.Nil => Result.ok 0#u32
 
 /- [no_nested_borrows::test_shared_borrow_enum2]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 446:0-446:40 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 451:0-451:40 -/
 def test_shared_borrow_enum2 : Result U32 :=
   Result.ok 0#u32
 
 /- [no_nested_borrows::incr]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 457:0-457:24 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 462:0-462:24 -/
 def incr (x : U32) : Result U32 :=
   x + 1#u32
 
 /- [no_nested_borrows::call_incr]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 461:0-461:35 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 466:0-466:35 -/
 def call_incr (x : U32) : Result U32 :=
   incr x
 
 /- [no_nested_borrows::read_then_incr]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 466:0-466:41 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 471:0-471:41 -/
 def read_then_incr (x : U32) : Result (U32 × U32) :=
   do
   let x1 ← x + 1#u32
   Result.ok (x, x1)
 
 /- [no_nested_borrows::Tuple]
-   Source: 'tests/src/no_nested_borrows.rs', lines 472:0-472:24 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 477:0-477:24 -/
 def Tuple (T1 T2 : Type) := T1 × T2
 
 /- [no_nested_borrows::use_tuple_struct]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 474:0-474:48 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 479:0-479:48 -/
 def use_tuple_struct (x : Tuple U32 U32) : Result (Tuple U32 U32) :=
   Result.ok (1#u32, x.#1)
 
 /- [no_nested_borrows::create_tuple_struct]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 478:0-478:61 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 483:0-483:61 -/
 def create_tuple_struct (x : U32) (y : U64) : Result (Tuple U32 U64) :=
   Result.ok (x, y)
 
 /- [no_nested_borrows::IdType]
-   Source: 'tests/src/no_nested_borrows.rs', lines 483:0-483:20 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 488:0-488:20 -/
 @[reducible] def IdType (T : Type) := T
 
 /- [no_nested_borrows::use_id_type]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 485:0-485:40 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 490:0-490:40 -/
 def use_id_type (T : Type) (x : IdType T) : Result T :=
   Result.ok x
 
 /- [no_nested_borrows::create_id_type]:
-   Source: 'tests/src/no_nested_borrows.rs', lines 489:0-489:43 -/
+   Source: 'tests/src/no_nested_borrows.rs', lines 494:0-494:43 -/
 def create_id_type (T : Type) (x : T) : Result (IdType T) :=
   Result.ok x
 
-- 
cgit v1.2.3


From 8a1adfb37d2cf295d8caed1dfdd4f7475bb19283 Mon Sep 17 00:00:00 2001
From: Nadrieril
Date: Tue, 4 Jun 2024 17:42:46 +0200
Subject: Update charon

---
 tests/lean/NoNestedBorrows.lean | 152 ++++++++++++++++++++--------------------
 1 file changed, 76 insertions(+), 76 deletions(-)

(limited to 'tests/lean/NoNestedBorrows.lean')

diff --git a/tests/lean/NoNestedBorrows.lean b/tests/lean/NoNestedBorrows.lean
index aa782009..b8fbcff0 100644
--- a/tests/lean/NoNestedBorrows.lean
+++ b/tests/lean/NoNestedBorrows.lean
@@ -82,9 +82,9 @@ def test3 : Result Unit :=
   let x ← get_max 4#u32 3#u32
   let y ← get_max 10#u32 11#u32
   let z ← x + y
-  if ¬ (z = 15#u32)
-  then Result.fail .panic
-  else Result.ok ()
+  if z = 15#u32
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test3] -/
 #assert (test3 == Result.ok ())
@@ -94,9 +94,9 @@ def test3 : Result Unit :=
 def test_neg1 : Result Unit :=
   do
   let y ← -. 3#i32
-  if ¬ (y = (-3)#i32)
-  then Result.fail .panic
-  else Result.ok ()
+  if y = (-3)#i32
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_neg1] -/
 #assert (test_neg1 == Result.ok ())
@@ -104,9 +104,9 @@ def test_neg1 : Result Unit :=
 /- [no_nested_borrows::refs_test1]:
    Source: 'tests/src/no_nested_borrows.rs', lines 97:0-97:19 -/
 def refs_test1 : Result Unit :=
-  if ¬ (1#i32 = 1#i32)
-  then Result.fail .panic
-  else Result.ok ()
+  if 1#i32 = 1#i32
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::refs_test1] -/
 #assert (refs_test1 == Result.ok ())
@@ -114,17 +114,17 @@ def refs_test1 : Result Unit :=
 /- [no_nested_borrows::refs_test2]:
    Source: 'tests/src/no_nested_borrows.rs', lines 108:0-108:19 -/
 def refs_test2 : Result Unit :=
-  if ¬ (2#i32 = 2#i32)
-  then Result.fail .panic
-  else
-    if ¬ (0#i32 = 0#i32)
-    then Result.fail .panic
-    else
-      if ¬ (2#i32 = 2#i32)
-      then Result.fail .panic
-      else if ¬ (2#i32 = 2#i32)
-           then Result.fail .panic
-           else Result.ok ()
+  if 2#i32 = 2#i32
+  then
+    if 0#i32 = 0#i32
+    then
+      if 2#i32 = 2#i32
+      then if 2#i32 = 2#i32
+           then Result.ok ()
+           else Result.fail .panic
+      else Result.fail .panic
+    else Result.fail .panic
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::refs_test2] -/
 #assert (refs_test2 == Result.ok ())
@@ -144,9 +144,9 @@ def test_box1 : Result Unit :=
   let (_, deref_mut_back) ← alloc.boxed.Box.deref_mut I32 0#i32
   let b ← deref_mut_back 1#i32
   let x ← alloc.boxed.Box.deref I32 b
-  if ¬ (x = 1#i32)
-  then Result.fail .panic
-  else Result.ok ()
+  if x = 1#i32
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_box1] -/
 #assert (test_box1 == Result.ok ())
@@ -175,9 +175,9 @@ def test_panic (b : Bool) : Result Unit :=
 def test_copy_int : Result Unit :=
   do
   let y ← copy_int 0#i32
-  if ¬ (0#i32 = y)
-  then Result.fail .panic
-  else Result.ok ()
+  if 0#i32 = y
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_copy_int] -/
 #assert (test_copy_int == Result.ok ())
@@ -194,9 +194,9 @@ def is_cons (T : Type) (l : List T) : Result Bool :=
 def test_is_cons : Result Unit :=
   do
   let b ← is_cons I32 (List.Cons 0#i32 List.Nil)
-  if ¬ b
-  then Result.fail .panic
-  else Result.ok ()
+  if b
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_is_cons] -/
 #assert (test_is_cons == Result.ok ())
@@ -214,9 +214,9 @@ def test_split_list : Result Unit :=
   do
   let p ← split_list I32 (List.Cons 0#i32 List.Nil)
   let (hd, _) := p
-  if ¬ (hd = 0#i32)
-  then Result.fail .panic
-  else Result.ok ()
+  if hd = 0#i32
+  then Result.ok ()
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_split_list] -/
 #assert (test_split_list == Result.ok ())
@@ -239,16 +239,16 @@ def choose_test : Result Unit :=
   do
   let (z, choose_back) ← choose I32 true 0#i32 0#i32
   let z1 ← z + 1#i32
-  if ¬ (z1 = 1#i32)
-  then Result.fail .panic
-  else
+  if z1 = 1#i32
+  then
     do
     let (x, y) ← choose_back z1
-    if ¬ (x = 1#i32)
-    then Result.fail .panic
-    else if ¬ (y = 0#i32)
-         then Result.fail .panic
-         else Result.ok ()
+    if x = 1#i32
+    then if y = 0#i32
+         then Result.ok ()
+         else Result.fail .panic
+    else Result.fail .panic
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::choose_test] -/
 #assert (choose_test == Result.ok ())
@@ -343,42 +343,42 @@ def test_list_functions : Result Unit :=
   let l := List.Cons 2#i32 List.Nil
   let l1 := List.Cons 1#i32 l
   let i ← list_length I32 (List.Cons 0#i32 l1)
-  if ¬ (i = 3#u32)
-  then Result.fail .panic
-  else
+  if i = 3#u32
+  then
     do
     let i1 ← list_nth_shared I32 (List.Cons 0#i32 l1) 0#u32
-    if ¬ (i1 = 0#i32)
-    then Result.fail .panic
-    else
+    if i1 = 0#i32
+    then
       do
       let i2 ← list_nth_shared I32 (List.Cons 0#i32 l1) 1#u32
-      if ¬ (i2 = 1#i32)
-      then Result.fail .panic
-      else
+      if i2 = 1#i32
+      then
         do
         let i3 ← list_nth_shared I32 (List.Cons 0#i32 l1) 2#u32
-        if ¬ (i3 = 2#i32)
-        then Result.fail .panic
-        else
+        if i3 = 2#i32
+        then
           do
           let (_, list_nth_mut_back) ←
             list_nth_mut I32 (List.Cons 0#i32 l1) 1#u32
           let ls ← list_nth_mut_back 3#i32
           let i4 ← list_nth_shared I32 ls 0#u32
-          if ¬ (i4 = 0#i32)
-          then Result.fail .panic
-          else
+          if i4 = 0#i32
+          then
             do
             let i5 ← list_nth_shared I32 ls 1#u32
-            if ¬ (i5 = 3#i32)
-            then Result.fail .panic
-            else
+            if i5 = 3#i32
+            then
               do
               let i6 ← list_nth_shared I32 ls 2#u32
-              if ¬ (i6 = 2#i32)
-              then Result.fail .panic
-              else Result.ok ()
+              if i6 = 2#i32
+              then Result.ok ()
+              else Result.fail .panic
+            else Result.fail .panic
+          else Result.fail .panic
+        else Result.fail .panic
+      else Result.fail .panic
+    else Result.fail .panic
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_list_functions] -/
 #assert (test_list_functions == Result.ok ())
@@ -453,26 +453,26 @@ def test_constants : Result Unit :=
   do
   let swt ← new_tuple1
   let (i, _) := swt.p
-  if ¬ (i = 1#u32)
-  then Result.fail .panic
-  else
+  if i = 1#u32
+  then
     do
     let swt1 ← new_tuple2
     let (i1, _) := swt1.p
-    if ¬ (i1 = 1#i16)
-    then Result.fail .panic
-    else
+    if i1 = 1#i16
+    then
       do
       let swt2 ← new_tuple3
       let (i2, _) := swt2.p
-      if ¬ (i2 = 1#u64)
-      then Result.fail .panic
-      else
+      if i2 = 1#u64
+      then
         do
         let swp ← new_pair1
-        if ¬ (swp.p.x = 1#u32)
-        then Result.fail .panic
-        else Result.ok ()
+        if swp.p.x = 1#u32
+        then Result.ok ()
+        else Result.fail .panic
+      else Result.fail .panic
+    else Result.fail .panic
+  else Result.fail .panic
 
 /- Unit test for [no_nested_borrows::test_constants] -/
 #assert (test_constants == Result.ok ())
@@ -489,9 +489,9 @@ def test_weird_borrows1 : Result Unit :=
    Source: 'tests/src/no_nested_borrows.rs', lines 407:0-407:37 -/
 def test_mem_replace (px : U32) : Result U32 :=
   let (y, _) := core.mem.replace U32 px 1#u32
-  if ¬ (y = 0#u32)
-  then Result.fail .panic
-  else Result.ok 2#u32
+  if y = 0#u32
+  then Result.ok 2#u32
+  else Result.fail .panic
 
 /- [no_nested_borrows::test_shared_borrow_bool1]:
    Source: 'tests/src/no_nested_borrows.rs', lines 414:0-414:47 -/
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