text: // Lean compiler output
  // Module: Lean.Meta.Tactic.Revert
  // Imports: Init Lean.Meta.Tactic.Clear
  #include <lean/lean.h>
  #if defined(__clang__)
  #pragma clang diagnostic ignored "-Wunused-parameter"
  #pragma clang diagnostic ignored "-Wunused-label"
  #elif defined(__GNUC__) && !defined(__CLANG__)
  #pragma GCC diagnostic ignored "-Wunused-parameter"
  #pragma GCC diagnostic ignored "-Wunused-label"
  #pragma GCC diagnostic ignored "-Wunused-but-set-variable"
  #endif
  #ifdef __cplusplus
  extern "C" {
  #endif
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__1;
  size_t lean_usize_add(size_t, size_t);
  lean_object* l_Lean_Expr_mvarId_x21(lean_object*);
  lean_object* l_Lean_stringToMessageData(lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__2;
  lean_object* lean_mk_empty_array_with_capacity(lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__4;
  uint8_t l_Lean_LocalDecl_isAuxDecl(lean_object*);
  lean_object* lean_name_mk_string(lean_object*, lean_object*);
  lean_object* lean_array_uget(lean_object*, size_t);
  lean_object* lean_array_uset(lean_object*, size_t, lean_object*);
  lean_object* l_Lean_throwError___at___private_Lean_Meta_Basic_0__Lean_Meta_processPostponedStep___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_getMVarTag(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_st_ref_get(lean_object*, lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__6;
  lean_object* lean_array_push(lean_object*, lean_object*);
  lean_object* lean_array_get_size(lean_object*);
  lean_object* l_Lean_MessageData_ofList(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__2___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Array_mapMUnsafe_map___at_Lean_LocalContext_getFVars___spec__1(size_t, size_t, lean_object*);
  uint8_t lean_usize_dec_lt(size_t, size_t);
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__3(lean_object*, size_t, size_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__3;
  lean_object* l_List_mapTRAux___at_Lean_MessageData_instCoeListExprMessageData___spec__1(lean_object*, lean_object*);
  static lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__1;
  lean_object* lean_st_ref_take(lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__4;
  static lean_object* l_Lean_Meta_revert___closed__2;
  lean_object* l_Lean_Expr_fvarId_x21(lean_object*);
  lean_object* l_Std_mkHashMapImp___rarg(lean_object*);
  lean_object* l_Lean_Meta_clear(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__2;
  LEAN_EXPORT lean_object* l_Lean_Meta_revert(lean_object*, lean_object*, uint8_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_setMVarKind(lean_object*, uint8_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4(size_t, size_t, lean_object*);
  lean_object* lean_array_to_list(lean_object*, lean_object*);
  static lean_object* l_Lean_Meta_revert___closed__1;
  LEAN_EXPORT lean_object* l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4___boxed(lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__3___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  uint8_t l_Array_isEmpty___rarg(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__1(lean_object*, size_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__2(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_mkFVar(lean_object*);
  size_t lean_usize_of_nat(lean_object*);
  lean_object* l_Lean_Meta_withMVarContext___at___private_Lean_Meta_SynthInstance_0__Lean_Meta_synthPendingImp___spec__1___rarg(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__2___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__5(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__2(lean_object*, lean_object*, lean_object*, uint8_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_checkNotAssigned(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_getLocalDecl(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_MetavarContext_MkBinding_collectDeps(lean_object*, lean_object*, lean_object*, uint8_t);
  lean_object* lean_st_ref_set(lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_addMessageContextFull___at_Lean_Meta_instAddMessageContextMetaM___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__8;
  lean_object* l_Lean_Expr_getAppFn(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__5___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1(lean_object*, size_t, size_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__7;
  lean_object* l_Lean_Meta_setMCtx(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_setMVarTag(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__5;
  lean_object* l_Lean_MetavarContext_MkBinding_revert(lean_object*, lean_object*, uint8_t, lean_object*);
  static lean_object* l_Lean_Meta_revert___lambda__2___closed__3;
  static lean_object* _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("failed to revert ");
  return x_1;
  }
  }
  static lean_object* _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__1;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string(", it is an auxiliary declaration created to represent recursive definitions");
  return x_1;
  }
  }
  static lean_object* _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__4() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__3;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1(lean_object* x_1, size_t x_2, size_t x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
  _start:
  {
  uint8_t x_10; 
  x_10 = lean_usize_dec_lt(x_3, x_2);
  if (x_10 == 0)
  {
  lean_object* x_11; 
  lean_dec(x_5);
  x_11 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_11, 0, x_4);
  lean_ctor_set(x_11, 1, x_9);
  return x_11;
  }
  else
  {
  lean_object* x_12; lean_object* x_13; 
  lean_dec(x_4);
  x_12 = lean_array_uget(x_1, x_3);
  lean_inc(x_5);
  lean_inc(x_12);
  x_13 = l_Lean_Meta_getLocalDecl(x_12, x_5, x_6, x_7, x_8, x_9);
  if (lean_obj_tag(x_13) == 0)
  {
  lean_object* x_14; lean_object* x_15; uint8_t x_16; 
  x_14 = lean_ctor_get(x_13, 0);
  lean_inc(x_14);
  x_15 = lean_ctor_get(x_13, 1);
  lean_inc(x_15);
  lean_dec(x_13);
  x_16 = l_Lean_LocalDecl_isAuxDecl(x_14);
  lean_dec(x_14);
  if (x_16 == 0)
  {
  size_t x_17; size_t x_18; lean_object* x_19; 
  lean_dec(x_12);
  x_17 = 1;
  x_18 = lean_usize_add(x_3, x_17);
  x_19 = lean_box(0);
  x_3 = x_18;
  x_4 = x_19;
  x_9 = x_15;
  goto _start;
  }
  else
  {
  lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; lean_object* x_27; uint8_t x_28; 
  x_21 = l_Lean_mkFVar(x_12);
  x_22 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_22, 0, x_21);
  x_23 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__2;
  x_24 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_24, 0, x_23);
  lean_ctor_set(x_24, 1, x_22);
  x_25 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__4;
  x_26 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_26, 0, x_24);
  lean_ctor_set(x_26, 1, x_25);
  x_27 = l_Lean_throwError___at___private_Lean_Meta_Basic_0__Lean_Meta_processPostponedStep___spec__1(x_26, x_5, x_6, x_7, x_8, x_15);
  lean_dec(x_5);
  x_28 = !lean_is_exclusive(x_27);
  if (x_28 == 0)
  {
  return x_27;
  }
  else
  {
  lean_object* x_29; lean_object* x_30; lean_object* x_31; 
  x_29 = lean_ctor_get(x_27, 0);
  x_30 = lean_ctor_get(x_27, 1);
  lean_inc(x_30);
  lean_inc(x_29);
  lean_dec(x_27);
  x_31 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_31, 0, x_29);
  lean_ctor_set(x_31, 1, x_30);
  return x_31;
  }
  }
  }
  else
  {
  uint8_t x_32; 
  lean_dec(x_12);
  lean_dec(x_5);
  x_32 = !lean_is_exclusive(x_13);
  if (x_32 == 0)
  {
  return x_13;
  }
  else
  {
  lean_object* x_33; lean_object* x_34; lean_object* x_35; 
  x_33 = lean_ctor_get(x_13, 0);
  x_34 = lean_ctor_get(x_13, 1);
  lean_inc(x_34);
  lean_inc(x_33);
  lean_dec(x_13);
  x_35 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_35, 0, x_33);
  lean_ctor_set(x_35, 1, x_34);
  return x_35;
  }
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__2(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; lean_object* x_8; uint8_t x_9; 
  x_7 = lean_ctor_get(x_4, 3);
  x_8 = l_Lean_addMessageContextFull___at_Lean_Meta_instAddMessageContextMetaM___spec__1(x_1, x_2, x_3, x_4, x_5, x_6);
  x_9 = !lean_is_exclusive(x_8);
  if (x_9 == 0)
  {
  lean_object* x_10; lean_object* x_11; 
  x_10 = lean_ctor_get(x_8, 0);
  lean_inc(x_7);
  x_11 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_11, 0, x_7);
  lean_ctor_set(x_11, 1, x_10);
  lean_ctor_set_tag(x_8, 1);
  lean_ctor_set(x_8, 0, x_11);
  return x_8;
  }
  else
  {
  lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_15; 
  x_12 = lean_ctor_get(x_8, 0);
  x_13 = lean_ctor_get(x_8, 1);
  lean_inc(x_13);
  lean_inc(x_12);
  lean_dec(x_8);
  lean_inc(x_7);
  x_14 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_14, 0, x_7);
  lean_ctor_set(x_14, 1, x_12);
  x_15 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_15, 0, x_14);
  lean_ctor_set(x_15, 1, x_13);
  return x_15;
  }
  }
  }
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__3(lean_object* x_1, size_t x_2, size_t x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
  _start:
  {
  uint8_t x_10; 
  x_10 = lean_usize_dec_lt(x_3, x_2);
  if (x_10 == 0)
  {
  lean_object* x_11; 
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_11 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_11, 0, x_4);
  lean_ctor_set(x_11, 1, x_9);
  return x_11;
  }
  else
  {
  lean_object* x_12; uint8_t x_13; 
  x_12 = lean_array_uget(x_1, x_3);
  x_13 = !lean_is_exclusive(x_4);
  if (x_13 == 0)
  {
  lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; 
  x_14 = lean_ctor_get(x_4, 0);
  x_15 = lean_ctor_get(x_4, 1);
  lean_inc(x_12);
  x_16 = l_Lean_Expr_fvarId_x21(x_12);
  lean_inc(x_5);
  lean_inc(x_16);
  x_17 = l_Lean_Meta_getLocalDecl(x_16, x_5, x_6, x_7, x_8, x_9);
  if (lean_obj_tag(x_17) == 0)
  {
  lean_object* x_18; lean_object* x_19; uint8_t x_20; 
  x_18 = lean_ctor_get(x_17, 0);
  lean_inc(x_18);
  x_19 = lean_ctor_get(x_17, 1);
  lean_inc(x_19);
  lean_dec(x_17);
  x_20 = l_Lean_LocalDecl_isAuxDecl(x_18);
  lean_dec(x_18);
  if (x_20 == 0)
  {
  lean_object* x_21; size_t x_22; size_t x_23; 
  lean_dec(x_16);
  x_21 = lean_array_push(x_14, x_12);
  lean_ctor_set(x_4, 0, x_21);
  x_22 = 1;
  x_23 = lean_usize_add(x_3, x_22);
  x_3 = x_23;
  x_9 = x_19;
  goto _start;
  }
  else
  {
  lean_object* x_25; 
  lean_dec(x_12);
  lean_inc(x_8);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  x_25 = l_Lean_Meta_clear(x_15, x_16, x_5, x_6, x_7, x_8, x_19);
  if (lean_obj_tag(x_25) == 0)
  {
  lean_object* x_26; lean_object* x_27; size_t x_28; size_t x_29; 
  x_26 = lean_ctor_get(x_25, 0);
  lean_inc(x_26);
  x_27 = lean_ctor_get(x_25, 1);
  lean_inc(x_27);
  lean_dec(x_25);
  lean_ctor_set(x_4, 1, x_26);
  x_28 = 1;
  x_29 = lean_usize_add(x_3, x_28);
  x_3 = x_29;
  x_9 = x_27;
  goto _start;
  }
  else
  {
  uint8_t x_31; 
  lean_free_object(x_4);
  lean_dec(x_14);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_31 = !lean_is_exclusive(x_25);
  if (x_31 == 0)
  {
  return x_25;
  }
  else
  {
  lean_object* x_32; lean_object* x_33; lean_object* x_34; 
  x_32 = lean_ctor_get(x_25, 0);
  x_33 = lean_ctor_get(x_25, 1);
  lean_inc(x_33);
  lean_inc(x_32);
  lean_dec(x_25);
  x_34 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_34, 0, x_32);
  lean_ctor_set(x_34, 1, x_33);
  return x_34;
  }
  }
  }
  }
  else
  {
  uint8_t x_35; 
  lean_dec(x_16);
  lean_free_object(x_4);
  lean_dec(x_15);
  lean_dec(x_14);
  lean_dec(x_12);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_35 = !lean_is_exclusive(x_17);
  if (x_35 == 0)
  {
  return x_17;
  }
  else
  {
  lean_object* x_36; lean_object* x_37; lean_object* x_38; 
  x_36 = lean_ctor_get(x_17, 0);
  x_37 = lean_ctor_get(x_17, 1);
  lean_inc(x_37);
  lean_inc(x_36);
  lean_dec(x_17);
  x_38 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_38, 0, x_36);
  lean_ctor_set(x_38, 1, x_37);
  return x_38;
  }
  }
  }
  else
  {
  lean_object* x_39; lean_object* x_40; lean_object* x_41; lean_object* x_42; 
  x_39 = lean_ctor_get(x_4, 0);
  x_40 = lean_ctor_get(x_4, 1);
  lean_inc(x_40);
  lean_inc(x_39);
  lean_dec(x_4);
  lean_inc(x_12);
  x_41 = l_Lean_Expr_fvarId_x21(x_12);
  lean_inc(x_5);
  lean_inc(x_41);
  x_42 = l_Lean_Meta_getLocalDecl(x_41, x_5, x_6, x_7, x_8, x_9);
  if (lean_obj_tag(x_42) == 0)
  {
  lean_object* x_43; lean_object* x_44; uint8_t x_45; 
  x_43 = lean_ctor_get(x_42, 0);
  lean_inc(x_43);
  x_44 = lean_ctor_get(x_42, 1);
  lean_inc(x_44);
  lean_dec(x_42);
  x_45 = l_Lean_LocalDecl_isAuxDecl(x_43);
  lean_dec(x_43);
  if (x_45 == 0)
  {
  lean_object* x_46; lean_object* x_47; size_t x_48; size_t x_49; 
  lean_dec(x_41);
  x_46 = lean_array_push(x_39, x_12);
  x_47 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_47, 0, x_46);
  lean_ctor_set(x_47, 1, x_40);
  x_48 = 1;
  x_49 = lean_usize_add(x_3, x_48);
  x_3 = x_49;
  x_4 = x_47;
  x_9 = x_44;
  goto _start;
  }
  else
  {
  lean_object* x_51; 
  lean_dec(x_12);
  lean_inc(x_8);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  x_51 = l_Lean_Meta_clear(x_40, x_41, x_5, x_6, x_7, x_8, x_44);
  if (lean_obj_tag(x_51) == 0)
  {
  lean_object* x_52; lean_object* x_53; lean_object* x_54; size_t x_55; size_t x_56; 
  x_52 = lean_ctor_get(x_51, 0);
  lean_inc(x_52);
  x_53 = lean_ctor_get(x_51, 1);
  lean_inc(x_53);
  lean_dec(x_51);
  x_54 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_54, 0, x_39);
  lean_ctor_set(x_54, 1, x_52);
  x_55 = 1;
  x_56 = lean_usize_add(x_3, x_55);
  x_3 = x_56;
  x_4 = x_54;
  x_9 = x_53;
  goto _start;
  }
  else
  {
  lean_object* x_58; lean_object* x_59; lean_object* x_60; lean_object* x_61; 
  lean_dec(x_39);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_58 = lean_ctor_get(x_51, 0);
  lean_inc(x_58);
  x_59 = lean_ctor_get(x_51, 1);
  lean_inc(x_59);
  if (lean_is_exclusive(x_51)) {
   lean_ctor_release(x_51, 0);
   lean_ctor_release(x_51, 1);
   x_60 = x_51;
  } else {
   lean_dec_ref(x_51);
   x_60 = lean_box(0);
  }
  if (lean_is_scalar(x_60)) {
   x_61 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_61 = x_60;
  }
  lean_ctor_set(x_61, 0, x_58);
  lean_ctor_set(x_61, 1, x_59);
  return x_61;
  }
  }
  }
  else
  {
  lean_object* x_62; lean_object* x_63; lean_object* x_64; lean_object* x_65; 
  lean_dec(x_41);
  lean_dec(x_40);
  lean_dec(x_39);
  lean_dec(x_12);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_62 = lean_ctor_get(x_42, 0);
  lean_inc(x_62);
  x_63 = lean_ctor_get(x_42, 1);
  lean_inc(x_63);
  if (lean_is_exclusive(x_42)) {
   lean_ctor_release(x_42, 0);
   lean_ctor_release(x_42, 1);
   x_64 = x_42;
  } else {
   lean_dec_ref(x_42);
   x_64 = lean_box(0);
  }
  if (lean_is_scalar(x_64)) {
   x_65 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_65 = x_64;
  }
  lean_ctor_set(x_65, 0, x_62);
  lean_ctor_set(x_65, 1, x_63);
  return x_65;
  }
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4(size_t x_1, size_t x_2, lean_object* x_3) {
  _start:
  {
  uint8_t x_4; 
  x_4 = lean_usize_dec_lt(x_2, x_1);
  if (x_4 == 0)
  {
  return x_3;
  }
  else
  {
  lean_object* x_5; lean_object* x_6; lean_object* x_7; lean_object* x_8; size_t x_9; size_t x_10; lean_object* x_11; 
  x_5 = lean_array_uget(x_3, x_2);
  x_6 = lean_unsigned_to_nat(0u);
  x_7 = lean_array_uset(x_3, x_2, x_6);
  x_8 = l_Lean_Expr_fvarId_x21(x_5);
  x_9 = 1;
  x_10 = lean_usize_add(x_2, x_9);
  x_11 = lean_array_uset(x_7, x_2, x_8);
  x_2 = x_10;
  x_3 = x_11;
  goto _start;
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__5(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; lean_object* x_8; uint8_t x_9; 
  x_7 = lean_ctor_get(x_4, 3);
  x_8 = l_Lean_addMessageContextFull___at_Lean_Meta_instAddMessageContextMetaM___spec__1(x_1, x_2, x_3, x_4, x_5, x_6);
  x_9 = !lean_is_exclusive(x_8);
  if (x_9 == 0)
  {
  lean_object* x_10; lean_object* x_11; 
  x_10 = lean_ctor_get(x_8, 0);
  lean_inc(x_7);
  x_11 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_11, 0, x_7);
  lean_ctor_set(x_11, 1, x_10);
  lean_ctor_set_tag(x_8, 1);
  lean_ctor_set(x_8, 0, x_11);
  return x_8;
  }
  else
  {
  lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_15; 
  x_12 = lean_ctor_get(x_8, 0);
  x_13 = lean_ctor_get(x_8, 1);
  lean_inc(x_13);
  lean_inc(x_12);
  lean_dec(x_8);
  lean_inc(x_7);
  x_14 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_14, 0, x_7);
  lean_ctor_set(x_14, 1, x_12);
  x_15 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_15, 0, x_14);
  lean_ctor_set(x_15, 1, x_13);
  return x_15;
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__1(lean_object* x_1, size_t x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  uint8_t x_9; 
  x_9 = !lean_is_exclusive(x_3);
  if (x_9 == 0)
  {
  lean_object* x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; lean_object* x_14; uint8_t x_15; 
  x_10 = lean_ctor_get(x_3, 0);
  x_11 = lean_ctor_get(x_3, 1);
  x_12 = l_Lean_Expr_getAppFn(x_10);
  lean_dec(x_10);
  x_13 = l_Lean_Expr_mvarId_x21(x_12);
  lean_dec(x_12);
  lean_inc(x_13);
  x_14 = l_Lean_Meta_setMVarTag(x_13, x_1, x_4, x_5, x_6, x_7, x_8);
  x_15 = !lean_is_exclusive(x_14);
  if (x_15 == 0)
  {
  lean_object* x_16; lean_object* x_17; size_t x_18; lean_object* x_19; 
  x_16 = lean_ctor_get(x_14, 0);
  lean_dec(x_16);
  x_17 = lean_array_get_size(x_11);
  x_18 = lean_usize_of_nat(x_17);
  lean_dec(x_17);
  x_19 = l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4(x_18, x_2, x_11);
  lean_ctor_set(x_3, 1, x_13);
  lean_ctor_set(x_3, 0, x_19);
  lean_ctor_set(x_14, 0, x_3);
  return x_14;
  }
  else
  {
  lean_object* x_20; lean_object* x_21; size_t x_22; lean_object* x_23; lean_object* x_24; 
  x_20 = lean_ctor_get(x_14, 1);
  lean_inc(x_20);
  lean_dec(x_14);
  x_21 = lean_array_get_size(x_11);
  x_22 = lean_usize_of_nat(x_21);
  lean_dec(x_21);
  x_23 = l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4(x_22, x_2, x_11);
  lean_ctor_set(x_3, 1, x_13);
  lean_ctor_set(x_3, 0, x_23);
  x_24 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_24, 0, x_3);
  lean_ctor_set(x_24, 1, x_20);
  return x_24;
  }
  }
  else
  {
  lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; size_t x_33; lean_object* x_34; lean_object* x_35; lean_object* x_36; 
  x_25 = lean_ctor_get(x_3, 0);
  x_26 = lean_ctor_get(x_3, 1);
  lean_inc(x_26);
  lean_inc(x_25);
  lean_dec(x_3);
  x_27 = l_Lean_Expr_getAppFn(x_25);
  lean_dec(x_25);
  x_28 = l_Lean_Expr_mvarId_x21(x_27);
  lean_dec(x_27);
  lean_inc(x_28);
  x_29 = l_Lean_Meta_setMVarTag(x_28, x_1, x_4, x_5, x_6, x_7, x_8);
  x_30 = lean_ctor_get(x_29, 1);
  lean_inc(x_30);
  if (lean_is_exclusive(x_29)) {
   lean_ctor_release(x_29, 0);
   lean_ctor_release(x_29, 1);
   x_31 = x_29;
  } else {
   lean_dec_ref(x_29);
   x_31 = lean_box(0);
  }
  x_32 = lean_array_get_size(x_26);
  x_33 = lean_usize_of_nat(x_32);
  lean_dec(x_32);
  x_34 = l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4(x_33, x_2, x_26);
  x_35 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_35, 0, x_34);
  lean_ctor_set(x_35, 1, x_28);
  if (lean_is_scalar(x_31)) {
   x_36 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_36 = x_31;
  }
  lean_ctor_set(x_36, 0, x_35);
  lean_ctor_set(x_36, 1, x_30);
  return x_36;
  }
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("failed to revert variables ");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Meta_revert___lambda__2___closed__1;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__4() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Meta_revert___lambda__2___closed__3;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__5() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = lean_mk_empty_array_with_capacity(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__6() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = l_Std_mkHashMapImp___rarg(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__7() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("failed to create binder due to failure when reverting variable dependencies");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___lambda__2___closed__8() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Meta_revert___lambda__2___closed__7;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__2(lean_object* x_1, lean_object* x_2, lean_object* x_3, uint8_t x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
  _start:
  {
  lean_object* x_10; 
  lean_inc(x_6);
  lean_inc(x_1);
  x_10 = l_Lean_Meta_checkNotAssigned(x_1, x_2, x_5, x_6, x_7, x_8, x_9);
  if (lean_obj_tag(x_10) == 0)
  {
  lean_object* x_11; lean_object* x_12; size_t x_13; size_t x_14; lean_object* x_15; lean_object* x_16; 
  x_11 = lean_ctor_get(x_10, 1);
  lean_inc(x_11);
  lean_dec(x_10);
  x_12 = lean_array_get_size(x_3);
  x_13 = lean_usize_of_nat(x_12);
  lean_dec(x_12);
  x_14 = 0;
  x_15 = lean_box(0);
  lean_inc(x_5);
  x_16 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1(x_3, x_13, x_14, x_15, x_5, x_6, x_7, x_8, x_11);
  if (lean_obj_tag(x_16) == 0)
  {
  lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; 
  x_17 = lean_ctor_get(x_16, 1);
  lean_inc(x_17);
  lean_dec(x_16);
  x_18 = l_Array_mapMUnsafe_map___at_Lean_LocalContext_getFVars___spec__1(x_13, x_14, x_3);
  x_19 = lean_st_ref_get(x_8, x_17);
  x_20 = lean_ctor_get(x_19, 1);
  lean_inc(x_20);
  lean_dec(x_19);
  x_21 = lean_st_ref_get(x_6, x_20);
  x_22 = lean_ctor_get(x_21, 0);
  lean_inc(x_22);
  x_23 = lean_ctor_get(x_21, 1);
  lean_inc(x_23);
  lean_dec(x_21);
  x_24 = lean_ctor_get(x_22, 0);
  lean_inc(x_24);
  lean_dec(x_22);
  x_25 = lean_ctor_get(x_5, 1);
  lean_inc(x_25);
  lean_inc(x_18);
  x_26 = l_Lean_MetavarContext_MkBinding_collectDeps(x_24, x_25, x_18, x_4);
  if (lean_obj_tag(x_26) == 0)
  {
  lean_object* x_27; lean_object* x_28; lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; 
  lean_dec(x_26);
  lean_dec(x_1);
  x_27 = lean_array_to_list(lean_box(0), x_18);
  x_28 = lean_box(0);
  x_29 = l_List_mapTRAux___at_Lean_MessageData_instCoeListExprMessageData___spec__1(x_27, x_28);
  x_30 = l_Lean_MessageData_ofList(x_29);
  lean_dec(x_29);
  x_31 = l_Lean_Meta_revert___lambda__2___closed__2;
  x_32 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_32, 0, x_31);
  lean_ctor_set(x_32, 1, x_30);
  x_33 = l_Lean_Meta_revert___lambda__2___closed__4;
  x_34 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_34, 0, x_32);
  lean_ctor_set(x_34, 1, x_33);
  x_35 = l_Lean_throwError___at_Lean_Meta_revert___spec__2(x_34, x_5, x_6, x_7, x_8, x_23);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  return x_35;
  }
  else
  {
  lean_object* x_36; lean_object* x_37; lean_object* x_38; lean_object* x_39; size_t x_40; lean_object* x_41; 
  lean_dec(x_18);
  x_36 = lean_ctor_get(x_26, 0);
  lean_inc(x_36);
  lean_dec(x_26);
  x_37 = l_Lean_Meta_revert___lambda__2___closed__5;
  x_38 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_38, 0, x_37);
  lean_ctor_set(x_38, 1, x_1);
  x_39 = lean_array_get_size(x_36);
  x_40 = lean_usize_of_nat(x_39);
  lean_dec(x_39);
  lean_inc(x_8);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  x_41 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__3(x_36, x_40, x_14, x_38, x_5, x_6, x_7, x_8, x_23);
  lean_dec(x_36);
  if (lean_obj_tag(x_41) == 0)
  {
  lean_object* x_42; lean_object* x_43; lean_object* x_44; lean_object* x_45; lean_object* x_46; 
  x_42 = lean_ctor_get(x_41, 0);
  lean_inc(x_42);
  x_43 = lean_ctor_get(x_41, 1);
  lean_inc(x_43);
  lean_dec(x_41);
  x_44 = lean_ctor_get(x_42, 0);
  lean_inc(x_44);
  x_45 = lean_ctor_get(x_42, 1);
  lean_inc(x_45);
  lean_dec(x_42);
  lean_inc(x_45);
  x_46 = l_Lean_Meta_getMVarTag(x_45, x_5, x_6, x_7, x_8, x_43);
  if (lean_obj_tag(x_46) == 0)
  {
  lean_object* x_47; lean_object* x_48; uint8_t x_49; lean_object* x_50; lean_object* x_51; lean_object* x_52; lean_object* x_62; lean_object* x_83; lean_object* x_84; lean_object* x_85; lean_object* x_86; lean_object* x_87; lean_object* x_88; lean_object* x_89; lean_object* x_90; lean_object* x_91; lean_object* x_92; lean_object* x_93; lean_object* x_94; lean_object* x_95; 
  x_47 = lean_ctor_get(x_46, 0);
  lean_inc(x_47);
  x_48 = lean_ctor_get(x_46, 1);
  lean_inc(x_48);
  lean_dec(x_46);
  x_49 = 0;
  lean_inc(x_45);
  x_50 = l_Lean_Meta_setMVarKind(x_45, x_49, x_5, x_6, x_7, x_8, x_48);
  x_51 = lean_ctor_get(x_50, 1);
  lean_inc(x_51);
  lean_dec(x_50);
  x_83 = lean_st_ref_get(x_8, x_51);
  x_84 = lean_ctor_get(x_83, 1);
  lean_inc(x_84);
  lean_dec(x_83);
  x_85 = lean_st_ref_get(x_6, x_84);
  x_86 = lean_ctor_get(x_85, 0);
  lean_inc(x_86);
  x_87 = lean_ctor_get(x_85, 1);
  lean_inc(x_87);
  lean_dec(x_85);
  x_88 = lean_ctor_get(x_86, 0);
  lean_inc(x_88);
  lean_dec(x_86);
  x_89 = lean_st_ref_get(x_8, x_87);
  x_90 = lean_ctor_get(x_89, 0);
  lean_inc(x_90);
  x_91 = lean_ctor_get(x_89, 1);
  lean_inc(x_91);
  lean_dec(x_89);
  x_92 = lean_ctor_get(x_90, 2);
  lean_inc(x_92);
  lean_dec(x_90);
  x_93 = l_Lean_Meta_revert___lambda__2___closed__6;
  x_94 = lean_alloc_ctor(0, 3, 0);
  lean_ctor_set(x_94, 0, x_88);
  lean_ctor_set(x_94, 1, x_92);
  lean_ctor_set(x_94, 2, x_93);
  lean_inc(x_45);
  x_95 = l_Lean_MetavarContext_MkBinding_revert(x_44, x_45, x_4, x_94);
  if (lean_obj_tag(x_95) == 0)
  {
  lean_object* x_96; lean_object* x_97; lean_object* x_98; lean_object* x_99; lean_object* x_100; lean_object* x_101; uint8_t x_102; 
  x_96 = lean_ctor_get(x_95, 0);
  lean_inc(x_96);
  x_97 = lean_ctor_get(x_95, 1);
  lean_inc(x_97);
  lean_dec(x_95);
  x_98 = lean_ctor_get(x_97, 1);
  lean_inc(x_98);
  x_99 = lean_st_ref_take(x_8, x_91);
  x_100 = lean_ctor_get(x_99, 0);
  lean_inc(x_100);
  x_101 = lean_ctor_get(x_99, 1);
  lean_inc(x_101);
  lean_dec(x_99);
  x_102 = !lean_is_exclusive(x_100);
  if (x_102 == 0)
  {
  lean_object* x_103; lean_object* x_104; lean_object* x_105; lean_object* x_106; lean_object* x_107; uint8_t x_108; 
  x_103 = lean_ctor_get(x_100, 2);
  lean_dec(x_103);
  lean_ctor_set(x_100, 2, x_98);
  x_104 = lean_st_ref_set(x_8, x_100, x_101);
  x_105 = lean_ctor_get(x_104, 1);
  lean_inc(x_105);
  lean_dec(x_104);
  x_106 = lean_ctor_get(x_97, 0);
  lean_inc(x_106);
  lean_dec(x_97);
  x_107 = l_Lean_Meta_setMCtx(x_106, x_5, x_6, x_7, x_8, x_105);
  x_108 = !lean_is_exclusive(x_107);
  if (x_108 == 0)
  {
  lean_object* x_109; 
  x_109 = lean_ctor_get(x_107, 0);
  lean_dec(x_109);
  lean_ctor_set(x_107, 0, x_96);
  x_62 = x_107;
  goto block_82;
  }
  else
  {
  lean_object* x_110; lean_object* x_111; 
  x_110 = lean_ctor_get(x_107, 1);
  lean_inc(x_110);
  lean_dec(x_107);
  x_111 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_111, 0, x_96);
  lean_ctor_set(x_111, 1, x_110);
  x_62 = x_111;
  goto block_82;
  }
  }
  else
  {
  lean_object* x_112; lean_object* x_113; lean_object* x_114; lean_object* x_115; lean_object* x_116; lean_object* x_117; lean_object* x_118; lean_object* x_119; lean_object* x_120; lean_object* x_121; lean_object* x_122; 
  x_112 = lean_ctor_get(x_100, 0);
  x_113 = lean_ctor_get(x_100, 1);
  x_114 = lean_ctor_get(x_100, 3);
  lean_inc(x_114);
  lean_inc(x_113);
  lean_inc(x_112);
  lean_dec(x_100);
  x_115 = lean_alloc_ctor(0, 4, 0);
  lean_ctor_set(x_115, 0, x_112);
  lean_ctor_set(x_115, 1, x_113);
  lean_ctor_set(x_115, 2, x_98);
  lean_ctor_set(x_115, 3, x_114);
  x_116 = lean_st_ref_set(x_8, x_115, x_101);
  x_117 = lean_ctor_get(x_116, 1);
  lean_inc(x_117);
  lean_dec(x_116);
  x_118 = lean_ctor_get(x_97, 0);
  lean_inc(x_118);
  lean_dec(x_97);
  x_119 = l_Lean_Meta_setMCtx(x_118, x_5, x_6, x_7, x_8, x_117);
  x_120 = lean_ctor_get(x_119, 1);
  lean_inc(x_120);
  if (lean_is_exclusive(x_119)) {
   lean_ctor_release(x_119, 0);
   lean_ctor_release(x_119, 1);
   x_121 = x_119;
  } else {
   lean_dec_ref(x_119);
   x_121 = lean_box(0);
  }
  if (lean_is_scalar(x_121)) {
   x_122 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_122 = x_121;
  }
  lean_ctor_set(x_122, 0, x_96);
  lean_ctor_set(x_122, 1, x_120);
  x_62 = x_122;
  goto block_82;
  }
  }
  else
  {
  lean_object* x_123; lean_object* x_124; lean_object* x_125; lean_object* x_126; lean_object* x_127; lean_object* x_128; lean_object* x_129; lean_object* x_130; uint8_t x_131; 
  x_123 = lean_ctor_get(x_95, 1);
  lean_inc(x_123);
  lean_dec(x_95);
  x_124 = lean_ctor_get(x_123, 0);
  lean_inc(x_124);
  x_125 = l_Lean_Meta_setMCtx(x_124, x_5, x_6, x_7, x_8, x_91);
  x_126 = lean_ctor_get(x_125, 1);
  lean_inc(x_126);
  lean_dec(x_125);
  x_127 = lean_ctor_get(x_123, 1);
  lean_inc(x_127);
  lean_dec(x_123);
  x_128 = lean_st_ref_take(x_8, x_126);
  x_129 = lean_ctor_get(x_128, 0);
  lean_inc(x_129);
  x_130 = lean_ctor_get(x_128, 1);
  lean_inc(x_130);
  lean_dec(x_128);
  x_131 = !lean_is_exclusive(x_129);
  if (x_131 == 0)
  {
  lean_object* x_132; lean_object* x_133; lean_object* x_134; lean_object* x_135; lean_object* x_136; 
  x_132 = lean_ctor_get(x_129, 2);
  lean_dec(x_132);
  lean_ctor_set(x_129, 2, x_127);
  x_133 = lean_st_ref_set(x_8, x_129, x_130);
  x_134 = lean_ctor_get(x_133, 1);
  lean_inc(x_134);
  lean_dec(x_133);
  x_135 = l_Lean_Meta_revert___lambda__2___closed__8;
  x_136 = l_Lean_throwError___at_Lean_Meta_revert___spec__5(x_135, x_5, x_6, x_7, x_8, x_134);
  x_62 = x_136;
  goto block_82;
  }
  else
  {
  lean_object* x_137; lean_object* x_138; lean_object* x_139; lean_object* x_140; lean_object* x_141; lean_object* x_142; lean_object* x_143; lean_object* x_144; 
  x_137 = lean_ctor_get(x_129, 0);
  x_138 = lean_ctor_get(x_129, 1);
  x_139 = lean_ctor_get(x_129, 3);
  lean_inc(x_139);
  lean_inc(x_138);
  lean_inc(x_137);
  lean_dec(x_129);
  x_140 = lean_alloc_ctor(0, 4, 0);
  lean_ctor_set(x_140, 0, x_137);
  lean_ctor_set(x_140, 1, x_138);
  lean_ctor_set(x_140, 2, x_127);
  lean_ctor_set(x_140, 3, x_139);
  x_141 = lean_st_ref_set(x_8, x_140, x_130);
  x_142 = lean_ctor_get(x_141, 1);
  lean_inc(x_142);
  lean_dec(x_141);
  x_143 = l_Lean_Meta_revert___lambda__2___closed__8;
  x_144 = l_Lean_throwError___at_Lean_Meta_revert___spec__5(x_143, x_5, x_6, x_7, x_8, x_142);
  x_62 = x_144;
  goto block_82;
  }
  }
  block_61:
  {
  if (lean_obj_tag(x_52) == 0)
  {
  lean_object* x_53; lean_object* x_54; lean_object* x_55; lean_object* x_56; 
  x_53 = lean_ctor_get(x_52, 0);
  lean_inc(x_53);
  x_54 = lean_ctor_get(x_52, 1);
  lean_inc(x_54);
  lean_dec(x_52);
  x_55 = lean_ctor_get(x_53, 0);
  lean_inc(x_55);
  lean_dec(x_53);
  x_56 = l_Lean_Meta_revert___lambda__1(x_47, x_14, x_55, x_5, x_6, x_7, x_8, x_54);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  return x_56;
  }
  else
  {
  uint8_t x_57; 
  lean_dec(x_47);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_57 = !lean_is_exclusive(x_52);
  if (x_57 == 0)
  {
  return x_52;
  }
  else
  {
  lean_object* x_58; lean_object* x_59; lean_object* x_60; 
  x_58 = lean_ctor_get(x_52, 0);
  x_59 = lean_ctor_get(x_52, 1);
  lean_inc(x_59);
  lean_inc(x_58);
  lean_dec(x_52);
  x_60 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_60, 0, x_58);
  lean_ctor_set(x_60, 1, x_59);
  return x_60;
  }
  }
  }
  block_82:
  {
  if (lean_obj_tag(x_62) == 0)
  {
  lean_object* x_63; lean_object* x_64; uint8_t x_65; lean_object* x_66; uint8_t x_67; 
  x_63 = lean_ctor_get(x_62, 0);
  lean_inc(x_63);
  x_64 = lean_ctor_get(x_62, 1);
  lean_inc(x_64);
  lean_dec(x_62);
  x_65 = 2;
  x_66 = l_Lean_Meta_setMVarKind(x_45, x_65, x_5, x_6, x_7, x_8, x_64);
  x_67 = !lean_is_exclusive(x_66);
  if (x_67 == 0)
  {
  lean_object* x_68; lean_object* x_69; 
  x_68 = lean_ctor_get(x_66, 0);
  x_69 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_69, 0, x_63);
  lean_ctor_set(x_69, 1, x_68);
  lean_ctor_set(x_66, 0, x_69);
  x_52 = x_66;
  goto block_61;
  }
  else
  {
  lean_object* x_70; lean_object* x_71; lean_object* x_72; lean_object* x_73; 
  x_70 = lean_ctor_get(x_66, 0);
  x_71 = lean_ctor_get(x_66, 1);
  lean_inc(x_71);
  lean_inc(x_70);
  lean_dec(x_66);
  x_72 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_72, 0, x_63);
  lean_ctor_set(x_72, 1, x_70);
  x_73 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_73, 0, x_72);
  lean_ctor_set(x_73, 1, x_71);
  x_52 = x_73;
  goto block_61;
  }
  }
  else
  {
  lean_object* x_74; lean_object* x_75; uint8_t x_76; lean_object* x_77; uint8_t x_78; 
  x_74 = lean_ctor_get(x_62, 0);
  lean_inc(x_74);
  x_75 = lean_ctor_get(x_62, 1);
  lean_inc(x_75);
  lean_dec(x_62);
  x_76 = 2;
  x_77 = l_Lean_Meta_setMVarKind(x_45, x_76, x_5, x_6, x_7, x_8, x_75);
  x_78 = !lean_is_exclusive(x_77);
  if (x_78 == 0)
  {
  lean_object* x_79; 
  x_79 = lean_ctor_get(x_77, 0);
  lean_dec(x_79);
  lean_ctor_set_tag(x_77, 1);
  lean_ctor_set(x_77, 0, x_74);
  x_52 = x_77;
  goto block_61;
  }
  else
  {
  lean_object* x_80; lean_object* x_81; 
  x_80 = lean_ctor_get(x_77, 1);
  lean_inc(x_80);
  lean_dec(x_77);
  x_81 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_81, 0, x_74);
  lean_ctor_set(x_81, 1, x_80);
  x_52 = x_81;
  goto block_61;
  }
  }
  }
  }
  else
  {
  uint8_t x_145; 
  lean_dec(x_45);
  lean_dec(x_44);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_145 = !lean_is_exclusive(x_46);
  if (x_145 == 0)
  {
  return x_46;
  }
  else
  {
  lean_object* x_146; lean_object* x_147; lean_object* x_148; 
  x_146 = lean_ctor_get(x_46, 0);
  x_147 = lean_ctor_get(x_46, 1);
  lean_inc(x_147);
  lean_inc(x_146);
  lean_dec(x_46);
  x_148 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_148, 0, x_146);
  lean_ctor_set(x_148, 1, x_147);
  return x_148;
  }
  }
  }
  else
  {
  uint8_t x_149; 
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  x_149 = !lean_is_exclusive(x_41);
  if (x_149 == 0)
  {
  return x_41;
  }
  else
  {
  lean_object* x_150; lean_object* x_151; lean_object* x_152; 
  x_150 = lean_ctor_get(x_41, 0);
  x_151 = lean_ctor_get(x_41, 1);
  lean_inc(x_151);
  lean_inc(x_150);
  lean_dec(x_41);
  x_152 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_152, 0, x_150);
  lean_ctor_set(x_152, 1, x_151);
  return x_152;
  }
  }
  }
  }
  else
  {
  uint8_t x_153; 
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  lean_dec(x_1);
  x_153 = !lean_is_exclusive(x_16);
  if (x_153 == 0)
  {
  return x_16;
  }
  else
  {
  lean_object* x_154; lean_object* x_155; lean_object* x_156; 
  x_154 = lean_ctor_get(x_16, 0);
  x_155 = lean_ctor_get(x_16, 1);
  lean_inc(x_155);
  lean_inc(x_154);
  lean_dec(x_16);
  x_156 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_156, 0, x_154);
  lean_ctor_set(x_156, 1, x_155);
  return x_156;
  }
  }
  }
  else
  {
  uint8_t x_157; 
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  lean_dec(x_1);
  x_157 = !lean_is_exclusive(x_10);
  if (x_157 == 0)
  {
  return x_10;
  }
  else
  {
  lean_object* x_158; lean_object* x_159; lean_object* x_160; 
  x_158 = lean_ctor_get(x_10, 0);
  x_159 = lean_ctor_get(x_10, 1);
  lean_inc(x_159);
  lean_inc(x_158);
  lean_dec(x_10);
  x_160 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_160, 0, x_158);
  lean_ctor_set(x_160, 1, x_159);
  return x_160;
  }
  }
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("revert");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Meta_revert___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Meta_revert___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Meta_revert(lean_object* x_1, lean_object* x_2, uint8_t x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  uint8_t x_9; 
  x_9 = l_Array_isEmpty___rarg(x_2);
  if (x_9 == 0)
  {
  lean_object* x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; 
  x_10 = l_Lean_Meta_revert___closed__2;
  x_11 = lean_box(x_3);
  lean_inc(x_1);
  x_12 = lean_alloc_closure((void*)(l_Lean_Meta_revert___lambda__2___boxed), 9, 4);
  lean_closure_set(x_12, 0, x_1);
  lean_closure_set(x_12, 1, x_10);
  lean_closure_set(x_12, 2, x_2);
  lean_closure_set(x_12, 3, x_11);
  x_13 = l_Lean_Meta_withMVarContext___at___private_Lean_Meta_SynthInstance_0__Lean_Meta_synthPendingImp___spec__1___rarg(x_1, x_12, x_4, x_5, x_6, x_7, x_8);
  return x_13;
  }
  else
  {
  lean_object* x_14; lean_object* x_15; lean_object* x_16; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  x_14 = l_Lean_Meta_revert___lambda__2___closed__5;
  x_15 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_15, 0, x_14);
  lean_ctor_set(x_15, 1, x_1);
  x_16 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_16, 0, x_15);
  lean_ctor_set(x_16, 1, x_8);
  return x_16;
  }
  }
  }
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
  _start:
  {
  size_t x_10; size_t x_11; lean_object* x_12; 
  x_10 = lean_unbox_usize(x_2);
  lean_dec(x_2);
  x_11 = lean_unbox_usize(x_3);
  lean_dec(x_3);
  x_12 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1(x_1, x_10, x_11, x_4, x_5, x_6, x_7, x_8, x_9);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_1);
  return x_12;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__2___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; 
  x_7 = l_Lean_throwError___at_Lean_Meta_revert___spec__2(x_1, x_2, x_3, x_4, x_5, x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  return x_7;
  }
  }
  LEAN_EXPORT lean_object* l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__3___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
  _start:
  {
  size_t x_10; size_t x_11; lean_object* x_12; 
  x_10 = lean_unbox_usize(x_2);
  lean_dec(x_2);
  x_11 = lean_unbox_usize(x_3);
  lean_dec(x_3);
  x_12 = l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__3(x_1, x_10, x_11, x_4, x_5, x_6, x_7, x_8, x_9);
  lean_dec(x_1);
  return x_12;
  }
  }
  LEAN_EXPORT lean_object* l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3) {
  _start:
  {
  size_t x_4; size_t x_5; lean_object* x_6; 
  x_4 = lean_unbox_usize(x_1);
  lean_dec(x_1);
  x_5 = lean_unbox_usize(x_2);
  lean_dec(x_2);
  x_6 = l_Array_mapMUnsafe_map___at_Lean_Meta_revert___spec__4(x_4, x_5, x_3);
  return x_6;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_throwError___at_Lean_Meta_revert___spec__5___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; 
  x_7 = l_Lean_throwError___at_Lean_Meta_revert___spec__5(x_1, x_2, x_3, x_4, x_5, x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  return x_7;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  size_t x_9; lean_object* x_10; 
  x_9 = lean_unbox_usize(x_2);
  lean_dec(x_2);
  x_10 = l_Lean_Meta_revert___lambda__1(x_1, x_9, x_3, x_4, x_5, x_6, x_7, x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  return x_10;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___lambda__2___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
  _start:
  {
  uint8_t x_10; lean_object* x_11; 
  x_10 = lean_unbox(x_4);
  lean_dec(x_4);
  x_11 = l_Lean_Meta_revert___lambda__2(x_1, x_2, x_3, x_10, x_5, x_6, x_7, x_8, x_9);
  return x_11;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Meta_revert___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  uint8_t x_9; lean_object* x_10; 
  x_9 = lean_unbox(x_3);
  lean_dec(x_3);
  x_10 = l_Lean_Meta_revert(x_1, x_2, x_9, x_4, x_5, x_6, x_7, x_8);
  return x_10;
  }
  }
  lean_object* initialize_Init(uint8_t builtin, lean_object*);
  lean_object* initialize_Lean_Meta_Tactic_Clear(uint8_t builtin, lean_object*);
  static bool _G_initialized = false;
  LEAN_EXPORT lean_object* initialize_Lean_Meta_Tactic_Revert(uint8_t builtin, lean_object* w) {
  lean_object * res;
  if (_G_initialized) return lean_io_result_mk_ok(lean_box(0));
  _G_initialized = true;
  res = initialize_Init(builtin, lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Meta_Tactic_Clear(builtin, lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__1 = _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__1();
  lean_mark_persistent(l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__1);
  l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__2 = _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__2();
  lean_mark_persistent(l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__2);
  l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__3 = _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__3();
  lean_mark_persistent(l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__3);
  l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__4 = _init_l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__4();
  lean_mark_persistent(l_Array_forInUnsafe_loop___at_Lean_Meta_revert___spec__1___closed__4);
  l_Lean_Meta_revert___lambda__2___closed__1 = _init_l_Lean_Meta_revert___lambda__2___closed__1();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__1);
  l_Lean_Meta_revert___lambda__2___closed__2 = _init_l_Lean_Meta_revert___lambda__2___closed__2();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__2);
  l_Lean_Meta_revert___lambda__2___closed__3 = _init_l_Lean_Meta_revert___lambda__2___closed__3();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__3);
  l_Lean_Meta_revert___lambda__2___closed__4 = _init_l_Lean_Meta_revert___lambda__2___closed__4();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__4);
  l_Lean_Meta_revert___lambda__2___closed__5 = _init_l_Lean_Meta_revert___lambda__2___closed__5();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__5);
  l_Lean_Meta_revert___lambda__2___closed__6 = _init_l_Lean_Meta_revert___lambda__2___closed__6();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__6);
  l_Lean_Meta_revert___lambda__2___closed__7 = _init_l_Lean_Meta_revert___lambda__2___closed__7();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__7);
  l_Lean_Meta_revert___lambda__2___closed__8 = _init_l_Lean_Meta_revert___lambda__2___closed__8();
  lean_mark_persistent(l_Lean_Meta_revert___lambda__2___closed__8);
  l_Lean_Meta_revert___closed__1 = _init_l_Lean_Meta_revert___closed__1();
  lean_mark_persistent(l_Lean_Meta_revert___closed__1);
  l_Lean_Meta_revert___closed__2 = _init_l_Lean_Meta_revert___closed__2();
  lean_mark_persistent(l_Lean_Meta_revert___closed__2);
  return lean_io_result_mk_ok(lean_box(0));
  }
  #ifdef __cplusplus
  }
  #endif
  