Fix runaway indentation

2 files changed, 444 insertions, 455 deletions

diff --git a/compiler/Extract.ml b/compiler/Extract.ml
index a5ff6796..d707dc81 100644
--- a/compiler/Extract.ml
+++ b/compiler/Extract.ml
@@ -1661,25 +1661,25 @@ and extract_adt_cons (ctx : extraction_ctx) (fmt : F.formatter) (inside : bool)
         Collections.List.iter_link
           (fun () ->
             F.pp_print_string fmt ",";
-            F.pp_close_box fmt ();
             F.pp_print_space fmt ()
           )
           (fun ((fid, _), e) ->
-            F.pp_open_hovbox fmt 0;
+            F.pp_open_hvbox fmt ctx.indent_incr;
             let f = ctx_get_field adt_cons.adt_id fid ctx in
             F.pp_print_string fmt f;
             F.pp_print_string fmt " := ";
             F.pp_open_hvbox fmt ctx.indent_incr;
             extract_texpression ctx fmt true e;
+            F.pp_close_box fmt ();
             F.pp_close_box fmt ()
           )
           (List.combine fields args);
         F.pp_close_box fmt ();
         F.pp_close_box fmt ();
         F.pp_close_box fmt ();
-        F.pp_close_box fmt ();
         F.pp_print_space fmt ();
-        F.pp_print_string fmt "}"
+        F.pp_print_string fmt "}";
+        F.pp_close_box fmt ()
       else
         let use_parentheses = inside && args <> [] in
         if use_parentheses then F.pp_print_string fmt "(";
diff --git a/tests/lean/hashmap_on_disk/HashmapMain/Funs.lean b/tests/lean/hashmap_on_disk/HashmapMain/Funs.lean
index 79d711e9..5e78d9cf 100644
--- a/tests/lean/hashmap_on_disk/HashmapMain/Funs.lean
+++ b/tests/lean/hashmap_on_disk/HashmapMain/Funs.lean
@@ -182,261 +182,365 @@ def hashmap_hash_map_insert_no_resize_fwd_back
             hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
             hashmap_hash_map_slots := v
           }
-      else
-        do
-          let l0 <- hashmap_hash_map_insert_in_list_back T key value l 
-          let v <-
-            vec_index_mut_back (hashmap_list_t T) self.hashmap_hash_map_slots
-              hash_mod l0 
-          result.ret
-            {
-              hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
-              hashmap_hash_map_max_load_factor := self.hashmap_hash_map_max_load_factor,
-              hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
-              hashmap_hash_map_slots := v
-            }
-  
-  /- [core::num::u32::{9}::MAX] -/
-  def core_num_u32_max_body : result UInt32 :=
-    result.ret (UInt32.ofNatCore 4294967295 (by intlit))
-  def core_num_u32_max_c : UInt32 :=
-    eval_global core_num_u32_max_body (by simp)
-  
-  /- [hashmap_main::hashmap::HashMap::{0}::move_elements_from_list] -/
-  def hashmap_hash_map_move_elements_from_list_loop_fwd_back
-    (T : Type) (ntable : hashmap_hash_map_t T) (ls : hashmap_list_t T) :
-    (result (hashmap_hash_map_t T))
-    :=
-    match ls with
-    | hashmap_list_t.HashmapListCons k v tl =>
+    else
       do
-        let ntable0 <- hashmap_hash_map_insert_no_resize_fwd_back T ntable k v 
-        hashmap_hash_map_move_elements_from_list_loop_fwd_back T ntable0 tl
-    | hashmap_list_t.HashmapListNil => result.ret ntable
-    
-  termination_by hashmap_hash_map_move_elements_from_list_loop_fwd_back ntable
-                ls => hashmap_hash_map_move_elements_from_list_loop_terminates
-                     T ntable ls 
-  decreasing_by
-    hashmap_hash_map_move_elements_from_list_loop_decreases ntable ls
-  
-  /- [hashmap_main::hashmap::HashMap::{0}::move_elements_from_list] -/
-  def hashmap_hash_map_move_elements_from_list_fwd_back
-    (T : Type) (ntable : hashmap_hash_map_t T) (ls : hashmap_list_t T) :
-    result (hashmap_hash_map_t T)
-    :=
-    hashmap_hash_map_move_elements_from_list_loop_fwd_back T ntable ls
+        let l0 <- hashmap_hash_map_insert_in_list_back T key value l 
+        let v <-
+          vec_index_mut_back (hashmap_list_t T) self.hashmap_hash_map_slots
+            hash_mod l0 
+        result.ret
+          {
+            hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
+            hashmap_hash_map_max_load_factor := self.hashmap_hash_map_max_load_factor,
+            hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
+            hashmap_hash_map_slots := v
+          }
+
+/- [core::num::u32::{9}::MAX] -/
+def core_num_u32_max_body : result UInt32 :=
+  result.ret (UInt32.ofNatCore 4294967295 (by intlit))
+def core_num_u32_max_c : UInt32 := eval_global core_num_u32_max_body (by simp)
+
+/- [hashmap_main::hashmap::HashMap::{0}::move_elements_from_list] -/
+def hashmap_hash_map_move_elements_from_list_loop_fwd_back
+  (T : Type) (ntable : hashmap_hash_map_t T) (ls : hashmap_list_t T) :
+  (result (hashmap_hash_map_t T))
+  :=
+  match ls with
+  | hashmap_list_t.HashmapListCons k v tl =>
+    do
+      let ntable0 <- hashmap_hash_map_insert_no_resize_fwd_back T ntable k v 
+      hashmap_hash_map_move_elements_from_list_loop_fwd_back T ntable0 tl
+  | hashmap_list_t.HashmapListNil => result.ret ntable
   
-  /- [hashmap_main::hashmap::HashMap::{0}::move_elements] -/
-  def hashmap_hash_map_move_elements_loop_fwd_back
-    (T : Type) (ntable : hashmap_hash_map_t T) (slots : vec (hashmap_list_t T))
-    (i : USize) :
-    (result ((hashmap_hash_map_t T) × (vec (hashmap_list_t T))))
-    :=
-    let i0 := vec_len (hashmap_list_t T) slots 
-    if i < i0
+termination_by hashmap_hash_map_move_elements_from_list_loop_fwd_back ntable ls
+              => hashmap_hash_map_move_elements_from_list_loop_terminates T
+                ntable ls 
+decreasing_by hashmap_hash_map_move_elements_from_list_loop_decreases ntable ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::move_elements_from_list] -/
+def hashmap_hash_map_move_elements_from_list_fwd_back
+  (T : Type) (ntable : hashmap_hash_map_t T) (ls : hashmap_list_t T) :
+  result (hashmap_hash_map_t T)
+  :=
+  hashmap_hash_map_move_elements_from_list_loop_fwd_back T ntable ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::move_elements] -/
+def hashmap_hash_map_move_elements_loop_fwd_back
+  (T : Type) (ntable : hashmap_hash_map_t T) (slots : vec (hashmap_list_t T))
+  (i : USize) :
+  (result ((hashmap_hash_map_t T) × (vec (hashmap_list_t T))))
+  :=
+  let i0 := vec_len (hashmap_list_t T) slots 
+  if i < i0
+  then
+    do
+      let l <- vec_index_mut_fwd (hashmap_list_t T) slots i 
+      let ls :=
+        mem_replace_fwd (hashmap_list_t T) l hashmap_list_t.HashmapListNil 
+      let ntable0 <-
+        hashmap_hash_map_move_elements_from_list_fwd_back T ntable ls 
+      let i1 <- USize.checked_add i (USize.ofNatCore 1 (by intlit)) 
+      let l0 :=
+        mem_replace_back (hashmap_list_t T) l hashmap_list_t.HashmapListNil 
+      let slots0 <- vec_index_mut_back (hashmap_list_t T) slots i l0 
+      hashmap_hash_map_move_elements_loop_fwd_back T ntable0 slots0 i1
+  else result.ret (ntable, slots)
+termination_by hashmap_hash_map_move_elements_loop_fwd_back ntable slots i =>
+   hashmap_hash_map_move_elements_loop_terminates T ntable slots i 
+decreasing_by hashmap_hash_map_move_elements_loop_decreases ntable slots i
+
+/- [hashmap_main::hashmap::HashMap::{0}::move_elements] -/
+def hashmap_hash_map_move_elements_fwd_back
+  (T : Type) (ntable : hashmap_hash_map_t T) (slots : vec (hashmap_list_t T))
+  (i : USize) :
+  result ((hashmap_hash_map_t T) × (vec (hashmap_list_t T)))
+  :=
+  hashmap_hash_map_move_elements_loop_fwd_back T ntable slots i
+
+/- [hashmap_main::hashmap::HashMap::{0}::try_resize] -/
+def hashmap_hash_map_try_resize_fwd_back
+  (T : Type) (self : hashmap_hash_map_t T) : result (hashmap_hash_map_t T) :=
+  do
+    let max_usize <- scalar_cast USize core_num_u32_max_c 
+    let capacity := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let n1 <- USize.checked_div max_usize (USize.ofNatCore 2 (by intlit)) 
+    let (i, i0) := self.hashmap_hash_map_max_load_factor 
+    let i1 <- USize.checked_div n1 i 
+    if capacity <= i1
     then
       do
-        let l <- vec_index_mut_fwd (hashmap_list_t T) slots i 
-        let ls :=
-          mem_replace_fwd (hashmap_list_t T) l hashmap_list_t.HashmapListNil 
-        let ntable0 <-
-          hashmap_hash_map_move_elements_from_list_fwd_back T ntable ls 
-        let i1 <- USize.checked_add i (USize.ofNatCore 1 (by intlit)) 
-        let l0 :=
-          mem_replace_back (hashmap_list_t T) l hashmap_list_t.HashmapListNil 
-        let slots0 <- vec_index_mut_back (hashmap_list_t T) slots i l0 
-        hashmap_hash_map_move_elements_loop_fwd_back T ntable0 slots0 i1
-    else result.ret (ntable, slots)
-  termination_by hashmap_hash_map_move_elements_loop_fwd_back ntable slots i =>
-     hashmap_hash_map_move_elements_loop_terminates T ntable slots i 
-  decreasing_by hashmap_hash_map_move_elements_loop_decreases ntable slots i
+        let i2 <- USize.checked_mul capacity (USize.ofNatCore 2 (by intlit)) 
+        let ntable <- hashmap_hash_map_new_with_capacity_fwd T i2 i i0 
+        let (ntable0, _) <-
+          hashmap_hash_map_move_elements_fwd_back T ntable
+            self.hashmap_hash_map_slots (USize.ofNatCore 0 (by intlit)) 
+        result.ret
+          {
+            hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
+            hashmap_hash_map_max_load_factor := (i, i0),
+            hashmap_hash_map_max_load := ntable0.hashmap_hash_map_max_load,
+            hashmap_hash_map_slots := ntable0.hashmap_hash_map_slots
+          }
+    else
+      result.ret
+        {
+          hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
+          hashmap_hash_map_max_load_factor := (i, i0),
+          hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
+          hashmap_hash_map_slots := self.hashmap_hash_map_slots
+        }
+
+/- [hashmap_main::hashmap::HashMap::{0}::insert] -/
+def hashmap_hash_map_insert_fwd_back
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) (value : T) :
+  result (hashmap_hash_map_t T)
+  :=
+  do
+    let self0 <- hashmap_hash_map_insert_no_resize_fwd_back T self key value 
+    let i <- hashmap_hash_map_len_fwd T self0 
+    if i > self0.hashmap_hash_map_max_load
+    then hashmap_hash_map_try_resize_fwd_back T self0
+    else result.ret self0
+
+/- [hashmap_main::hashmap::HashMap::{0}::contains_key_in_list] -/
+def hashmap_hash_map_contains_key_in_list_loop_fwd
+  (T : Type) (key : USize) (ls : hashmap_list_t T) : (result Bool) :=
+  match ls with
+  | hashmap_list_t.HashmapListCons ckey t tl =>
+    if ckey = key
+    then result.ret true
+    else hashmap_hash_map_contains_key_in_list_loop_fwd T key tl
+  | hashmap_list_t.HashmapListNil => result.ret false
   
-  /- [hashmap_main::hashmap::HashMap::{0}::move_elements] -/
-  def hashmap_hash_map_move_elements_fwd_back
-    (T : Type) (ntable : hashmap_hash_map_t T) (slots : vec (hashmap_list_t T))
-    (i : USize) :
-    result ((hashmap_hash_map_t T) × (vec (hashmap_list_t T)))
-    :=
-    hashmap_hash_map_move_elements_loop_fwd_back T ntable slots i
+termination_by hashmap_hash_map_contains_key_in_list_loop_fwd key ls =>
+   hashmap_hash_map_contains_key_in_list_loop_terminates T key ls 
+decreasing_by hashmap_hash_map_contains_key_in_list_loop_decreases key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::contains_key_in_list] -/
+def hashmap_hash_map_contains_key_in_list_fwd
+  (T : Type) (key : USize) (ls : hashmap_list_t T) : result Bool :=
+  hashmap_hash_map_contains_key_in_list_loop_fwd T key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::contains_key] -/
+def hashmap_hash_map_contains_key_fwd
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result Bool :=
+  do
+    let hash <- hashmap_hash_key_fwd key 
+    let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let hash_mod <- USize.checked_rem hash i 
+    let l <-
+      vec_index_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
+    hashmap_hash_map_contains_key_in_list_fwd T key l
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_in_list] -/
+def hashmap_hash_map_get_in_list_loop_fwd
+  (T : Type) (key : USize) (ls : hashmap_list_t T) : (result T) :=
+  match ls with
+  | hashmap_list_t.HashmapListCons ckey cvalue tl =>
+    if ckey = key
+    then result.ret cvalue
+    else hashmap_hash_map_get_in_list_loop_fwd T key tl
+  | hashmap_list_t.HashmapListNil => result.fail error.panic
   
-  /- [hashmap_main::hashmap::HashMap::{0}::try_resize] -/
-  def hashmap_hash_map_try_resize_fwd_back
-    (T : Type) (self : hashmap_hash_map_t T) : result (hashmap_hash_map_t T) :=
-    do
-      let max_usize <- scalar_cast USize core_num_u32_max_c 
-      let capacity := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-      let n1 <- USize.checked_div max_usize (USize.ofNatCore 2 (by intlit)) 
-      let (i, i0) := self.hashmap_hash_map_max_load_factor 
-      let i1 <- USize.checked_div n1 i 
-      if capacity <= i1
-      then
-        do
-          let i2 <- USize.checked_mul capacity (USize.ofNatCore 2 (by intlit)) 
-          let ntable <- hashmap_hash_map_new_with_capacity_fwd T i2 i i0 
-          let (ntable0, _) <-
-            hashmap_hash_map_move_elements_fwd_back T ntable
-              self.hashmap_hash_map_slots (USize.ofNatCore 0 (by intlit)) 
-          result.ret
-            {
-              hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
-              hashmap_hash_map_max_load_factor := (i, i0),
-              hashmap_hash_map_max_load := ntable0.hashmap_hash_map_max_load,
-              hashmap_hash_map_slots := ntable0.hashmap_hash_map_slots
-            }
-        else
-          result.ret
-            {
-              hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
-              hashmap_hash_map_max_load_factor := (i, i0),
-              hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
-              hashmap_hash_map_slots := self.hashmap_hash_map_slots
-            }
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::insert] -/
-    def hashmap_hash_map_insert_fwd_back
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) (value : T) :
-      result (hashmap_hash_map_t T)
-      :=
-      do
-        let self0 <-
-          hashmap_hash_map_insert_no_resize_fwd_back T self key value 
-        let i <- hashmap_hash_map_len_fwd T self0 
-        if i > self0.hashmap_hash_map_max_load
-        then hashmap_hash_map_try_resize_fwd_back T self0
-        else result.ret self0
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::contains_key_in_list] -/
-    def hashmap_hash_map_contains_key_in_list_loop_fwd
-      (T : Type) (key : USize) (ls : hashmap_list_t T) : (result Bool) :=
-      match ls with
-      | hashmap_list_t.HashmapListCons ckey t tl =>
-        if ckey = key
-        then result.ret true
-        else hashmap_hash_map_contains_key_in_list_loop_fwd T key tl
-      | hashmap_list_t.HashmapListNil => result.ret false
-      
-    termination_by hashmap_hash_map_contains_key_in_list_loop_fwd key ls =>
-       hashmap_hash_map_contains_key_in_list_loop_terminates T key ls 
-    decreasing_by hashmap_hash_map_contains_key_in_list_loop_decreases key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::contains_key_in_list] -/
-    def hashmap_hash_map_contains_key_in_list_fwd
-      (T : Type) (key : USize) (ls : hashmap_list_t T) : result Bool :=
-      hashmap_hash_map_contains_key_in_list_loop_fwd T key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::contains_key] -/
-    def hashmap_hash_map_contains_key_fwd
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result Bool :=
-      do
-        let hash <- hashmap_hash_key_fwd key 
-        let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-        let hash_mod <- USize.checked_rem hash i 
-        let l <-
-          vec_index_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
-        hashmap_hash_map_contains_key_in_list_fwd T key l
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_in_list] -/
-    def hashmap_hash_map_get_in_list_loop_fwd
-      (T : Type) (key : USize) (ls : hashmap_list_t T) : (result T) :=
-      match ls with
-      | hashmap_list_t.HashmapListCons ckey cvalue tl =>
-        if ckey = key
-        then result.ret cvalue
-        else hashmap_hash_map_get_in_list_loop_fwd T key tl
-      | hashmap_list_t.HashmapListNil => result.fail error.panic
-      
-    termination_by hashmap_hash_map_get_in_list_loop_fwd key ls =>
-                                                                  hashmap_hash_map_get_in_list_loop_terminates
-                                                                  T key ls 
-    decreasing_by hashmap_hash_map_get_in_list_loop_decreases key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_in_list] -/
-    def hashmap_hash_map_get_in_list_fwd
-      (T : Type) (key : USize) (ls : hashmap_list_t T) : result T :=
-      hashmap_hash_map_get_in_list_loop_fwd T key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get] -/
-    def hashmap_hash_map_get_fwd
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result T :=
+termination_by hashmap_hash_map_get_in_list_loop_fwd key ls =>
+                                                              hashmap_hash_map_get_in_list_loop_terminates
+                                                              T key ls 
+decreasing_by hashmap_hash_map_get_in_list_loop_decreases key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_in_list] -/
+def hashmap_hash_map_get_in_list_fwd
+  (T : Type) (key : USize) (ls : hashmap_list_t T) : result T :=
+  hashmap_hash_map_get_in_list_loop_fwd T key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::get] -/
+def hashmap_hash_map_get_fwd
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result T :=
+  do
+    let hash <- hashmap_hash_key_fwd key 
+    let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let hash_mod <- USize.checked_rem hash i 
+    let l <-
+      vec_index_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
+    hashmap_hash_map_get_in_list_fwd T key l
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
+def hashmap_hash_map_get_mut_in_list_loop_fwd
+  (T : Type) (ls : hashmap_list_t T) (key : USize) : (result T) :=
+  match ls with
+  | hashmap_list_t.HashmapListCons ckey cvalue tl =>
+    if ckey = key
+    then result.ret cvalue
+    else hashmap_hash_map_get_mut_in_list_loop_fwd T tl key
+  | hashmap_list_t.HashmapListNil => result.fail error.panic
+  
+termination_by hashmap_hash_map_get_mut_in_list_loop_fwd ls key =>
+                                                                  hashmap_hash_map_get_mut_in_list_loop_terminates
+                                                                  T ls key 
+decreasing_by hashmap_hash_map_get_mut_in_list_loop_decreases ls key
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
+def hashmap_hash_map_get_mut_in_list_fwd
+  (T : Type) (ls : hashmap_list_t T) (key : USize) : result T :=
+  hashmap_hash_map_get_mut_in_list_loop_fwd T ls key
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
+def hashmap_hash_map_get_mut_in_list_loop_back
+  (T : Type) (ls : hashmap_list_t T) (key : USize) (ret0 : T) :
+  (result (hashmap_list_t T))
+  :=
+  match ls with
+  | hashmap_list_t.HashmapListCons ckey cvalue tl =>
+    if ckey = key
+    then result.ret (hashmap_list_t.HashmapListCons ckey ret0 tl)
+    else
       do
-        let hash <- hashmap_hash_key_fwd key 
-        let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-        let hash_mod <- USize.checked_rem hash i 
-        let l <-
-          vec_index_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
-        hashmap_hash_map_get_in_list_fwd T key l
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
-    def hashmap_hash_map_get_mut_in_list_loop_fwd
-      (T : Type) (ls : hashmap_list_t T) (key : USize) : (result T) :=
-      match ls with
-      | hashmap_list_t.HashmapListCons ckey cvalue tl =>
-        if ckey = key
-        then result.ret cvalue
-        else hashmap_hash_map_get_mut_in_list_loop_fwd T tl key
+        let l <- hashmap_hash_map_get_mut_in_list_loop_back T tl key ret0 
+        result.ret (hashmap_list_t.HashmapListCons ckey cvalue l)
+  | hashmap_list_t.HashmapListNil => result.fail error.panic
+  
+termination_by hashmap_hash_map_get_mut_in_list_loop_back ls key ret0 =>
+   hashmap_hash_map_get_mut_in_list_loop_terminates T ls key 
+decreasing_by hashmap_hash_map_get_mut_in_list_loop_decreases ls key
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
+def hashmap_hash_map_get_mut_in_list_back
+  (T : Type) (ls : hashmap_list_t T) (key : USize) (ret0 : T) :
+  result (hashmap_list_t T)
+  :=
+  hashmap_hash_map_get_mut_in_list_loop_back T ls key ret0
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_mut] -/
+def hashmap_hash_map_get_mut_fwd
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result T :=
+  do
+    let hash <- hashmap_hash_key_fwd key 
+    let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let hash_mod <- USize.checked_rem hash i 
+    let l <-
+      vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
+    hashmap_hash_map_get_mut_in_list_fwd T l key
+
+/- [hashmap_main::hashmap::HashMap::{0}::get_mut] -/
+def hashmap_hash_map_get_mut_back
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) (ret0 : T) :
+  result (hashmap_hash_map_t T)
+  :=
+  do
+    let hash <- hashmap_hash_key_fwd key 
+    let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let hash_mod <- USize.checked_rem hash i 
+    let l <-
+      vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
+    let l0 <- hashmap_hash_map_get_mut_in_list_back T l key ret0 
+    let v <-
+      vec_index_mut_back (hashmap_list_t T) self.hashmap_hash_map_slots
+        hash_mod l0 
+    result.ret
+      {
+        hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
+        hashmap_hash_map_max_load_factor := self.hashmap_hash_map_max_load_factor,
+        hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
+        hashmap_hash_map_slots := v
+      }
+
+/- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
+def hashmap_hash_map_remove_from_list_loop_fwd
+  (T : Type) (key : USize) (ls : hashmap_list_t T) : (result (Option T)) :=
+  match ls with
+  | hashmap_list_t.HashmapListCons ckey t tl =>
+    if ckey = key
+    then
+      let mv_ls :=
+        mem_replace_fwd (hashmap_list_t T) (hashmap_list_t.HashmapListCons ckey
+          t tl) hashmap_list_t.HashmapListNil 
+      match mv_ls with
+      | hashmap_list_t.HashmapListCons i cvalue tl0 =>
+        result.ret (Option.some cvalue)
       | hashmap_list_t.HashmapListNil => result.fail error.panic
       
-    termination_by hashmap_hash_map_get_mut_in_list_loop_fwd ls key =>
-       hashmap_hash_map_get_mut_in_list_loop_terminates T ls key 
-    decreasing_by hashmap_hash_map_get_mut_in_list_loop_decreases ls key
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
-    def hashmap_hash_map_get_mut_in_list_fwd
-      (T : Type) (ls : hashmap_list_t T) (key : USize) : result T :=
-      hashmap_hash_map_get_mut_in_list_loop_fwd T ls key
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
-    def hashmap_hash_map_get_mut_in_list_loop_back
-      (T : Type) (ls : hashmap_list_t T) (key : USize) (ret0 : T) :
-      (result (hashmap_list_t T))
-      :=
-      match ls with
-      | hashmap_list_t.HashmapListCons ckey cvalue tl =>
-        if ckey = key
-        then result.ret (hashmap_list_t.HashmapListCons ckey ret0 tl)
-        else
-          do
-            let l <- hashmap_hash_map_get_mut_in_list_loop_back T tl key ret0 
-            result.ret (hashmap_list_t.HashmapListCons ckey cvalue l)
+    else hashmap_hash_map_remove_from_list_loop_fwd T key tl
+  | hashmap_list_t.HashmapListNil => result.ret Option.none
+  
+termination_by hashmap_hash_map_remove_from_list_loop_fwd key ls =>
+                                                                   hashmap_hash_map_remove_from_list_loop_terminates
+                                                                   T key ls 
+decreasing_by hashmap_hash_map_remove_from_list_loop_decreases key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
+def hashmap_hash_map_remove_from_list_fwd
+  (T : Type) (key : USize) (ls : hashmap_list_t T) : result (Option T) :=
+  hashmap_hash_map_remove_from_list_loop_fwd T key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
+def hashmap_hash_map_remove_from_list_loop_back
+  (T : Type) (key : USize) (ls : hashmap_list_t T) :
+  (result (hashmap_list_t T))
+  :=
+  match ls with
+  | hashmap_list_t.HashmapListCons ckey t tl =>
+    if ckey = key
+    then
+      let mv_ls :=
+        mem_replace_fwd (hashmap_list_t T) (hashmap_list_t.HashmapListCons ckey
+          t tl) hashmap_list_t.HashmapListNil 
+      match mv_ls with
+      | hashmap_list_t.HashmapListCons i cvalue tl0 => result.ret tl0
       | hashmap_list_t.HashmapListNil => result.fail error.panic
       
-    termination_by hashmap_hash_map_get_mut_in_list_loop_back ls key ret0 =>
-       hashmap_hash_map_get_mut_in_list_loop_terminates T ls key 
-    decreasing_by hashmap_hash_map_get_mut_in_list_loop_decreases ls key
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_mut_in_list] -/
-    def hashmap_hash_map_get_mut_in_list_back
-      (T : Type) (ls : hashmap_list_t T) (key : USize) (ret0 : T) :
-      result (hashmap_list_t T)
-      :=
-      hashmap_hash_map_get_mut_in_list_loop_back T ls key ret0
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::get_mut] -/
-    def hashmap_hash_map_get_mut_fwd
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result T :=
+    else
+      do
+        let l <- hashmap_hash_map_remove_from_list_loop_back T key tl 
+        result.ret (hashmap_list_t.HashmapListCons ckey t l)
+  | hashmap_list_t.HashmapListNil => result.ret hashmap_list_t.HashmapListNil
+  
+termination_by hashmap_hash_map_remove_from_list_loop_back key ls =>
+                                                                    hashmap_hash_map_remove_from_list_loop_terminates
+                                                                    T key ls 
+decreasing_by hashmap_hash_map_remove_from_list_loop_decreases key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
+def hashmap_hash_map_remove_from_list_back
+  (T : Type) (key : USize) (ls : hashmap_list_t T) :
+  result (hashmap_list_t T)
+  :=
+  hashmap_hash_map_remove_from_list_loop_back T key ls
+
+/- [hashmap_main::hashmap::HashMap::{0}::remove] -/
+def hashmap_hash_map_remove_fwd
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) : result (Option T) :=
+  do
+    let hash <- hashmap_hash_key_fwd key 
+    let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let hash_mod <- USize.checked_rem hash i 
+    let l <-
+      vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
+    let x <- hashmap_hash_map_remove_from_list_fwd T key l 
+    match x with
+    | Option.none => result.ret Option.none
+    | Option.some x0 =>
       do
-        let hash <- hashmap_hash_key_fwd key 
-        let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-        let hash_mod <- USize.checked_rem hash i 
-        let l <-
-          vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots
-            hash_mod 
-        hashmap_hash_map_get_mut_in_list_fwd T l key
+        let _ <- USize.checked_sub self.hashmap_hash_map_num_entries
+          (USize.ofNatCore 1 (by intlit)) 
+        result.ret (Option.some x0)
     
-    /- [hashmap_main::hashmap::HashMap::{0}::get_mut] -/
-    def hashmap_hash_map_get_mut_back
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) (ret0 : T) :
-      result (hashmap_hash_map_t T)
-      :=
+
+/- [hashmap_main::hashmap::HashMap::{0}::remove] -/
+def hashmap_hash_map_remove_back
+  (T : Type) (self : hashmap_hash_map_t T) (key : USize) :
+  result (hashmap_hash_map_t T)
+  :=
+  do
+    let hash <- hashmap_hash_key_fwd key 
+    let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
+    let hash_mod <- USize.checked_rem hash i 
+    let l <-
+      vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots hash_mod 
+    let x <- hashmap_hash_map_remove_from_list_fwd T key l 
+    match x with
+    | Option.none =>
       do
-        let hash <- hashmap_hash_key_fwd key 
-        let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-        let hash_mod <- USize.checked_rem hash i 
-        let l <-
-          vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots
-            hash_mod 
-        let l0 <- hashmap_hash_map_get_mut_in_list_back T l key ret0 
+        let l0 <- hashmap_hash_map_remove_from_list_back T key l 
         let v <-
           vec_index_mut_back (hashmap_list_t T) self.hashmap_hash_map_slots
             hash_mod l0 
@@ -447,221 +551,106 @@ def hashmap_hash_map_insert_no_resize_fwd_back
             hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
             hashmap_hash_map_slots := v
           }
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
-    def hashmap_hash_map_remove_from_list_loop_fwd
-      (T : Type) (key : USize) (ls : hashmap_list_t T) : (result (Option T)) :=
-      match ls with
-      | hashmap_list_t.HashmapListCons ckey t tl =>
-        if ckey = key
-        then
-          let mv_ls :=
-            mem_replace_fwd (hashmap_list_t T) (hashmap_list_t.HashmapListCons
-              ckey t tl) hashmap_list_t.HashmapListNil 
-          match mv_ls with
-          | hashmap_list_t.HashmapListCons i cvalue tl0 =>
-            result.ret (Option.some cvalue)
-          | hashmap_list_t.HashmapListNil => result.fail error.panic
-          
-        else hashmap_hash_map_remove_from_list_loop_fwd T key tl
-      | hashmap_list_t.HashmapListNil => result.ret Option.none
-      
-    termination_by hashmap_hash_map_remove_from_list_loop_fwd key ls =>
-       hashmap_hash_map_remove_from_list_loop_terminates T key ls 
-    decreasing_by hashmap_hash_map_remove_from_list_loop_decreases key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
-    def hashmap_hash_map_remove_from_list_fwd
-      (T : Type) (key : USize) (ls : hashmap_list_t T) : result (Option T) :=
-      hashmap_hash_map_remove_from_list_loop_fwd T key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
-    def hashmap_hash_map_remove_from_list_loop_back
-      (T : Type) (key : USize) (ls : hashmap_list_t T) :
-      (result (hashmap_list_t T))
-      :=
-      match ls with
-      | hashmap_list_t.HashmapListCons ckey t tl =>
-        if ckey = key
-        then
-          let mv_ls :=
-            mem_replace_fwd (hashmap_list_t T) (hashmap_list_t.HashmapListCons
-              ckey t tl) hashmap_list_t.HashmapListNil 
-          match mv_ls with
-          | hashmap_list_t.HashmapListCons i cvalue tl0 => result.ret tl0
-          | hashmap_list_t.HashmapListNil => result.fail error.panic
-          
-        else
-          do
-            let l <- hashmap_hash_map_remove_from_list_loop_back T key tl 
-            result.ret (hashmap_list_t.HashmapListCons ckey t l)
-      | hashmap_list_t.HashmapListNil =>
-        result.ret hashmap_list_t.HashmapListNil
-      
-    termination_by hashmap_hash_map_remove_from_list_loop_back key ls =>
-       hashmap_hash_map_remove_from_list_loop_terminates T key ls 
-    decreasing_by hashmap_hash_map_remove_from_list_loop_decreases key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::remove_from_list] -/
-    def hashmap_hash_map_remove_from_list_back
-      (T : Type) (key : USize) (ls : hashmap_list_t T) :
-      result (hashmap_list_t T)
-      :=
-      hashmap_hash_map_remove_from_list_loop_back T key ls
-    
-    /- [hashmap_main::hashmap::HashMap::{0}::remove] -/
-    def hashmap_hash_map_remove_fwd
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) :
-      result (Option T)
-      :=
+    | Option.some x0 =>
       do
-        let hash <- hashmap_hash_key_fwd key 
-        let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-        let hash_mod <- USize.checked_rem hash i 
-        let l <-
-          vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots
-            hash_mod 
-        let x <- hashmap_hash_map_remove_from_list_fwd T key l 
-        match x with
-        | Option.none => result.ret Option.none
-        | Option.some x0 =>
-          do
-            let _ <- USize.checked_sub self.hashmap_hash_map_num_entries
-              (USize.ofNatCore 1 (by intlit)) 
-            result.ret (Option.some x0)
-        
+        let i0 <- USize.checked_sub self.hashmap_hash_map_num_entries
+          (USize.ofNatCore 1 (by intlit)) 
+        let l0 <- hashmap_hash_map_remove_from_list_back T key l 
+        let v <-
+          vec_index_mut_back (hashmap_list_t T) self.hashmap_hash_map_slots
+            hash_mod l0 
+        result.ret
+          {
+            hashmap_hash_map_num_entries := i0,
+            hashmap_hash_map_max_load_factor := self.hashmap_hash_map_max_load_factor,
+            hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
+            hashmap_hash_map_slots := v
+          }
     
-    /- [hashmap_main::hashmap::HashMap::{0}::remove] -/
-    def hashmap_hash_map_remove_back
-      (T : Type) (self : hashmap_hash_map_t T) (key : USize) :
-      result (hashmap_hash_map_t T)
-      :=
+
+/- [hashmap_main::hashmap::test1] -/
+def hashmap_test1_fwd : result Unit :=
+  do
+    let hm <- hashmap_hash_map_new_fwd UInt64 
+    let hm0 <-
+      hashmap_hash_map_insert_fwd_back UInt64 hm
+        (USize.ofNatCore 0 (by intlit)) (UInt64.ofNatCore 42 (by intlit)) 
+    let hm1 <-
+      hashmap_hash_map_insert_fwd_back UInt64 hm0
+        (USize.ofNatCore 128 (by intlit)) (UInt64.ofNatCore 18 (by intlit)) 
+    let hm2 <-
+      hashmap_hash_map_insert_fwd_back UInt64 hm1
+        (USize.ofNatCore 1024 (by intlit)) (UInt64.ofNatCore 138 (by intlit)) 
+    let hm3 <-
+      hashmap_hash_map_insert_fwd_back UInt64 hm2
+        (USize.ofNatCore 1056 (by intlit)) (UInt64.ofNatCore 256 (by intlit)) 
+    let i <-
+      hashmap_hash_map_get_fwd UInt64 hm3 (USize.ofNatCore 128 (by intlit)) 
+    if not (i = (UInt64.ofNatCore 18 (by intlit)))
+    then result.fail error.panic
+    else
       do
-        let hash <- hashmap_hash_key_fwd key 
-        let i := vec_len (hashmap_list_t T) self.hashmap_hash_map_slots 
-        let hash_mod <- USize.checked_rem hash i 
-        let l <-
-          vec_index_mut_fwd (hashmap_list_t T) self.hashmap_hash_map_slots
-            hash_mod 
-        let x <- hashmap_hash_map_remove_from_list_fwd T key l 
-        match x with
-        | Option.none =>
+        let hm4 <-
+          hashmap_hash_map_get_mut_back UInt64 hm3
+            (USize.ofNatCore 1024 (by intlit))
+            (UInt64.ofNatCore 56 (by intlit)) 
+        let i0 <-
+          hashmap_hash_map_get_fwd UInt64 hm4
+            (USize.ofNatCore 1024 (by intlit)) 
+        if not (i0 = (UInt64.ofNatCore 56 (by intlit)))
+        then result.fail error.panic
+        else
           do
-            let l0 <- hashmap_hash_map_remove_from_list_back T key l 
-            let v <-
-              vec_index_mut_back (hashmap_list_t T) self.hashmap_hash_map_slots
-                hash_mod l0 
-            result.ret
-              {
-                hashmap_hash_map_num_entries := self.hashmap_hash_map_num_entries,
-                hashmap_hash_map_max_load_factor := self.hashmap_hash_map_max_load_factor,
-                hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
-                hashmap_hash_map_slots := v
-              }
-          | Option.some x0 =>
-            do
-              let i0 <- USize.checked_sub self.hashmap_hash_map_num_entries
-                (USize.ofNatCore 1 (by intlit)) 
-              let l0 <- hashmap_hash_map_remove_from_list_back T key l 
-              let v <-
-                vec_index_mut_back (hashmap_list_t T)
-                  self.hashmap_hash_map_slots hash_mod l0 
-              result.ret
-                {
-                  hashmap_hash_map_num_entries := i0,
-                  hashmap_hash_map_max_load_factor := self.hashmap_hash_map_max_load_factor,
-                  hashmap_hash_map_max_load := self.hashmap_hash_map_max_load,
-                  hashmap_hash_map_slots := v
-                } 
-      
-      /- [hashmap_main::hashmap::test1] -/
-      def hashmap_test1_fwd : result Unit :=
-        do
-          let hm <- hashmap_hash_map_new_fwd UInt64 
-          let hm0 <-
-            hashmap_hash_map_insert_fwd_back UInt64 hm
-              (USize.ofNatCore 0 (by intlit)) (UInt64.ofNatCore 42 (by intlit)) 
-          let hm1 <-
-            hashmap_hash_map_insert_fwd_back UInt64 hm0
-              (USize.ofNatCore 128 (by intlit))
-              (UInt64.ofNatCore 18 (by intlit)) 
-          let hm2 <-
-            hashmap_hash_map_insert_fwd_back UInt64 hm1
-              (USize.ofNatCore 1024 (by intlit))
-              (UInt64.ofNatCore 138 (by intlit)) 
-          let hm3 <-
-            hashmap_hash_map_insert_fwd_back UInt64 hm2
-              (USize.ofNatCore 1056 (by intlit))
-              (UInt64.ofNatCore 256 (by intlit)) 
-          let i <-
-            hashmap_hash_map_get_fwd UInt64 hm3
-              (USize.ofNatCore 128 (by intlit)) 
-          if not (i = (UInt64.ofNatCore 18 (by intlit)))
-          then result.fail error.panic
-          else
-            do
-              let hm4 <-
-                hashmap_hash_map_get_mut_back UInt64 hm3
-                  (USize.ofNatCore 1024 (by intlit))
-                  (UInt64.ofNatCore 56 (by intlit)) 
-              let i0 <-
-                hashmap_hash_map_get_fwd UInt64 hm4
-                  (USize.ofNatCore 1024 (by intlit)) 
-              if not (i0 = (UInt64.ofNatCore 56 (by intlit)))
+            let x <-
+              hashmap_hash_map_remove_fwd UInt64 hm4
+                (USize.ofNatCore 1024 (by intlit)) 
+            match x with
+            | Option.none => result.fail error.panic
+            | Option.some x0 =>
+              if not (x0 = (UInt64.ofNatCore 56 (by intlit)))
               then result.fail error.panic
               else
                 do
-                  let x <-
-                    hashmap_hash_map_remove_fwd UInt64 hm4
+                  let hm5 <-
+                    hashmap_hash_map_remove_back UInt64 hm4
                       (USize.ofNatCore 1024 (by intlit)) 
-                  match x with
-                  | Option.none => result.fail error.panic
-                  | Option.some x0 =>
-                    if not (x0 = (UInt64.ofNatCore 56 (by intlit)))
-                    then result.fail error.panic
-                    else
-                      do
-                        let hm5 <-
-                          hashmap_hash_map_remove_back UInt64 hm4
-                            (USize.ofNatCore 1024 (by intlit)) 
-                        let i1 <-
-                          hashmap_hash_map_get_fwd UInt64 hm5
-                            (USize.ofNatCore 0 (by intlit)) 
-                        if not (i1 = (UInt64.ofNatCore 42 (by intlit)))
-                        then result.fail error.panic
-                        else
-                          do
-                            let i2 <-
-                              hashmap_hash_map_get_fwd UInt64 hm5
-                                (USize.ofNatCore 128 (by intlit)) 
-                            if not (i2 = (UInt64.ofNatCore 18 (by intlit)))
-                            then result.fail error.panic
-                            else
-                              do
-                                let i3 <-
-                                  hashmap_hash_map_get_fwd UInt64 hm5
-                                    (USize.ofNatCore 1056 (by intlit)) 
-                                if not (i3 =
-                                  (UInt64.ofNatCore 256 (by intlit)))
-                                then result.fail error.panic
-                                else result.ret ()
-                  
-      
-      /- Unit test for [hashmap_main::hashmap::test1] -/
-      #assert (hashmap_test1_fwd = ret ())
-      
-      /- [hashmap_main::insert_on_disk] -/
-      def insert_on_disk_fwd
-        (key : USize) (value : UInt64) (st : state) : result (state × Unit) :=
-        do
-          let (st0, hm) <- hashmap_utils_deserialize_fwd st 
-          let hm0 <- hashmap_hash_map_insert_fwd_back UInt64 hm key value 
-          let (st1, _) <- hashmap_utils_serialize_fwd hm0 st0 
-          result.ret (st1, ())
-      
-      /- [hashmap_main::main] -/
-      def main_fwd : result Unit := result.ret ()
-      
-      /- Unit test for [hashmap_main::main] -/
-      #assert (main_fwd = ret ())
-      
+                  let i1 <-
+                    hashmap_hash_map_get_fwd UInt64 hm5
+                      (USize.ofNatCore 0 (by intlit)) 
+                  if not (i1 = (UInt64.ofNatCore 42 (by intlit)))
+                  then result.fail error.panic
+                  else
+                    do
+                      let i2 <-
+                        hashmap_hash_map_get_fwd UInt64 hm5
+                          (USize.ofNatCore 128 (by intlit)) 
+                      if not (i2 = (UInt64.ofNatCore 18 (by intlit)))
+                      then result.fail error.panic
+                      else
+                        do
+                          let i3 <-
+                            hashmap_hash_map_get_fwd UInt64 hm5
+                              (USize.ofNatCore 1056 (by intlit)) 
+                          if not (i3 = (UInt64.ofNatCore 256 (by intlit)))
+                          then result.fail error.panic
+                          else result.ret ()
+            
+
+/- Unit test for [hashmap_main::hashmap::test1] -/
+#assert (hashmap_test1_fwd = ret ())
+
+/- [hashmap_main::insert_on_disk] -/
+def insert_on_disk_fwd
+  (key : USize) (value : UInt64) (st : state) : result (state × Unit) :=
+  do
+    let (st0, hm) <- hashmap_utils_deserialize_fwd st 
+    let hm0 <- hashmap_hash_map_insert_fwd_back UInt64 hm key value 
+    let (st1, _) <- hashmap_utils_serialize_fwd hm0 st0 
+    result.ret (st1, ())
+
+/- [hashmap_main::main] -/
+def main_fwd : result Unit := result.ret ()
+
+/- Unit test for [hashmap_main::main] -/
+#assert (main_fwd = ret ())
+