c_src/syntax___flow._sep.c

   1 /* This C file is generated by NIT to compile module syntax___flow. */
   2 #include "syntax___flow._sep.h"
   3 void syntax___flow___FlowContext___check_is_set(val_t p0, val_t p1, val_t p2){
   4   struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
   5   val_t REGB0;
   6   val_t REGB1;
   7   val_t tmp;
   8     static val_t once_value_1; /* Once value */
   9     static val_t once_value_2; /* Once value */
  10   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
  11   fra.me.file = LOCATE_syntax___flow;
  12   fra.me.line = 34;
  13   fra.me.meth = LOCATE_syntax___flow___FlowContext___check_is_set;
  14   fra.me.has_broke = 0;
  15   fra.me.REG_size = 5;
  16   fra.me.REG[0] = NIT_NULL;
  17   fra.me.REG[1] = NIT_NULL;
  18   fra.me.REG[2] = NIT_NULL;
  19   fra.me.REG[3] = NIT_NULL;
  20   fra.me.REG[4] = NIT_NULL;
  21   fra.me.REG[0] = p0;
  22   fra.me.REG[1] = p1;
  23   fra.me.REG[2] = p2;
  24   /* ./syntax//flow.nit:37 */
  25   REGB0 = CALL_syntax___flow___Variable___must_be_set(fra.me.REG[2])(fra.me.REG[2]);
  26   if (UNTAG_Bool(REGB0)) {
  27     REGB0 = CALL_syntax___flow___FlowContext___is_set(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2]);
  28     REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
  29   } else {
  30     REGB1 = TAG_Bool(false);
  31     REGB0 = REGB1;
  32   }
  33   if (UNTAG_Bool(REGB0)) {
  34     /* ./syntax//flow.nit:38 */
  35     REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0])!=NIT_NULL);
  36     if (UNTAG_Bool(REGB0)) {
  37     } else {
  38       nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 38);
  39     }
  40     fra.me.REG[0] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0]);
  41     REGB0 = TAG_Int(3);
  42     fra.me.REG[3] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
  43     if (!once_value_1) {
  44       fra.me.REG[4] = BOX_NativeString("Error: variable '");
  45       REGB0 = TAG_Int(17);
  46       fra.me.REG[4] = NEW_String_standard___string___String___with_native(fra.me.REG[4], REGB0);
  47       once_value_1 = fra.me.REG[4];
  48       register_static_object(&once_value_1);
  49     } else fra.me.REG[4] = once_value_1;
  50     fra.me.REG[4] = fra.me.REG[4];
  51     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[4]);
  52     fra.me.REG[2] = CALL_standard___string___Object___to_s(fra.me.REG[2])(fra.me.REG[2]);
  53     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[2]);
  54     if (!once_value_2) {
  55       fra.me.REG[2] = BOX_NativeString("' is possibly unset.");
  56       REGB0 = TAG_Int(20);
  57       fra.me.REG[2] = NEW_String_standard___string___String___with_native(fra.me.REG[2], REGB0);
  58       once_value_2 = fra.me.REG[2];
  59       register_static_object(&once_value_2);
  60     } else fra.me.REG[2] = once_value_2;
  61     fra.me.REG[2] = fra.me.REG[2];
  62     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[2]);
  63     fra.me.REG[3] = CALL_standard___string___Object___to_s(fra.me.REG[3])(fra.me.REG[3]);
  64     CALL_syntax___syntax_base___AbsSyntaxVisitor___error(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[3]);
  65   }
  66   stack_frame_head = fra.me.prev;
  67   return;
  68 }
  69 val_t syntax___flow___FlowContext___stype(val_t p0, val_t p1){
  70   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
  71   val_t tmp;
  72   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
  73   fra.me.file = LOCATE_syntax___flow;
  74   fra.me.line = 42;
  75   fra.me.meth = LOCATE_syntax___flow___FlowContext___stype;
  76   fra.me.has_broke = 0;
  77   fra.me.REG_size = 2;
  78   fra.me.REG[0] = NIT_NULL;
  79   fra.me.REG[1] = NIT_NULL;
  80   fra.me.REG[0] = p0;
  81   fra.me.REG[1] = p1;
  82   /* ./syntax//flow.nit:46 */
  83   fra.me.REG[1] = CALL_syntax___syntax_base___Variable___stype(fra.me.REG[1])(fra.me.REG[1]);
  84   goto label1;
  85   label1: while(0);
  86   stack_frame_head = fra.me.prev;
  87   return fra.me.REG[1];
  88 }
  89 val_t syntax___flow___FlowContext___sub_setvariable(val_t p0, val_t p1){
  90   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
  91   val_t REGB0;
  92   val_t tmp;
  93   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
  94   fra.me.file = LOCATE_syntax___flow;
  95   fra.me.line = 49;
  96   fra.me.meth = LOCATE_syntax___flow___FlowContext___sub_setvariable;
  97   fra.me.has_broke = 0;
  98   fra.me.REG_size = 3;
  99   fra.me.REG[0] = NIT_NULL;
 100   fra.me.REG[1] = NIT_NULL;
 101   fra.me.REG[2] = NIT_NULL;
 102   fra.me.REG[0] = p0;
 103   fra.me.REG[1] = p1;
 104   /* ./syntax//flow.nit:52 */
 105   fra.me.REG[2] = CALL_syntax___flow___FlowContext___node(fra.me.REG[0])(fra.me.REG[0]);
 106   fra.me.REG[2] = NEW_SubFlowContext_syntax___flow___SubFlowContext___with_prev(fra.me.REG[0], fra.me.REG[2]);
 107   /* ./syntax//flow.nit:53 */
 108   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[2])!=NIT_NULL);
 109   if (UNTAG_Bool(REGB0)) {
 110   } else {
 111     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 53);
 112   }
 113   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[2]);
 114   CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 115   /* ./syntax//flow.nit:54 */
 116   goto label1;
 117   label1: while(0);
 118   stack_frame_head = fra.me.prev;
 119   return fra.me.REG[2];
 120 }
 121 val_t syntax___flow___FlowContext___sub_unreash(val_t p0, val_t p1){
 122   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
 123   val_t REGB0;
 124   val_t tmp;
 125   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 126   fra.me.file = LOCATE_syntax___flow;
 127   fra.me.line = 57;
 128   fra.me.meth = LOCATE_syntax___flow___FlowContext___sub_unreash;
 129   fra.me.has_broke = 0;
 130   fra.me.REG_size = 2;
 131   fra.me.REG[0] = NIT_NULL;
 132   fra.me.REG[1] = NIT_NULL;
 133   fra.me.REG[0] = p0;
 134   fra.me.REG[1] = p1;
 135   /* ./syntax//flow.nit:60 */
 136   fra.me.REG[1] = NEW_SubFlowContext_syntax___flow___SubFlowContext___with_prev(fra.me.REG[0], fra.me.REG[1]);
 137   /* ./syntax//flow.nit:61 */
 138   REGB0 = TAG_Bool(true);
 139   ATTR_syntax___flow___FlowContext____unreash(fra.me.REG[1]) = REGB0;
 140   /* ./syntax//flow.nit:62 */
 141   goto label1;
 142   label1: while(0);
 143   stack_frame_head = fra.me.prev;
 144   return fra.me.REG[1];
 145 }
 146 val_t syntax___flow___FlowContext___sub_with(val_t p0, val_t p1, val_t p2, val_t p3){
 147   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
 148   val_t tmp;
 149   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 150   fra.me.file = LOCATE_syntax___flow;
 151   fra.me.line = 65;
 152   fra.me.meth = LOCATE_syntax___flow___FlowContext___sub_with;
 153   fra.me.has_broke = 0;
 154   fra.me.REG_size = 4;
 155   fra.me.REG[0] = NIT_NULL;
 156   fra.me.REG[1] = NIT_NULL;
 157   fra.me.REG[2] = NIT_NULL;
 158   fra.me.REG[3] = NIT_NULL;
 159   fra.me.REG[0] = p0;
 160   fra.me.REG[1] = p1;
 161   fra.me.REG[2] = p2;
 162   fra.me.REG[3] = p3;
 163   /* ./syntax//flow.nit:68 */
 164   fra.me.REG[3] = NEW_CastFlowContext_syntax___flow___CastFlowContext___init(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], fra.me.REG[3]);
 165   goto label1;
 166   label1: while(0);
 167   stack_frame_head = fra.me.prev;
 168   return fra.me.REG[3];
 169 }
 170 val_t syntax___flow___FlowContext___merge(val_t p0, val_t p1, val_t p2){
 171   struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
 172   val_t REGB0;
 173   val_t REGB1;
 174   val_t REGB2;
 175   val_t tmp;
 176   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 177   fra.me.file = LOCATE_syntax___flow;
 178   fra.me.line = 71;
 179   fra.me.meth = LOCATE_syntax___flow___FlowContext___merge;
 180   fra.me.has_broke = 0;
 181   fra.me.REG_size = 6;
 182   fra.me.REG[0] = NIT_NULL;
 183   fra.me.REG[1] = NIT_NULL;
 184   fra.me.REG[2] = NIT_NULL;
 185   fra.me.REG[3] = NIT_NULL;
 186   fra.me.REG[4] = NIT_NULL;
 187   fra.me.REG[5] = NIT_NULL;
 188   fra.me.REG[0] = p0;
 189   fra.me.REG[1] = p1;
 190   fra.me.REG[2] = p2;
 191   /* ./../lib/standard//collection//array.nit:266 */
 192   fra.me.REG[3] = fra.me.REG[2];
 193   /* ./../lib/standard//collection//array.nit:269 */
 194   REGB0 = TAG_Int(0);
 195   /* ./../lib/standard//collection//array.nit:270 */
 196   REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
 197   if (UNTAG_Bool(REGB1)) {
 198   } else {
 199     nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
 200   }
 201   REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
 202   /* ./../lib/standard//collection//array.nit:271 */
 203   fra.me.REG[4] = ATTR_standard___collection___array___Array____items(fra.me.REG[3]);
 204   /* ./../lib/standard//collection//array.nit:272 */
 205   while(1) {
 206     /* ./../lib/standard//collection//array.nit:24 */
 207     REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
 208     if (UNTAG_Bool(REGB1)) {
 209     } else {
 210       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
 211     }
 212     REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
 213     REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
 214     if (UNTAG_Bool(REGB2)) {
 215     } else {
 216       nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
 217     }
 218     /* ./../lib/standard//kernel.nit:232 */
 219     REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
 220     /* ./../lib/standard//collection//array.nit:272 */
 221     if (UNTAG_Bool(REGB1)) {
 222       /* ./../lib/standard//collection//array.nit:273 */
 223       REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
 224       if (UNTAG_Bool(REGB1)) {
 225         nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
 226       }
 227       /* ./../lib/standard//collection//array.nit:718 */
 228       fra.me.REG[5] = ((Nit_NativeArray)fra.me.REG[4])->val[UNTAG_Int(REGB0)];
 229       /* ./syntax//flow.nit:76 */
 230       REGB1 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[5])(fra.me.REG[5]);
 231       REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
 232       if (UNTAG_Bool(REGB1)) {
 233       } else {
 234         nit_abort("Assert failed", NULL, LOCATE_syntax___flow, 76);
 235       }
 236       /* ./../lib/standard//collection//array.nit:274 */
 237       REGB1 = TAG_Int(1);
 238       /* ./../lib/standard//kernel.nit:235 */
 239       REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
 240       /* ./../lib/standard//collection//array.nit:274 */
 241       REGB0 = REGB1;
 242     } else {
 243       /* ./../lib/standard//collection//array.nit:272 */
 244       goto label1;
 245     }
 246   }
 247   label1: while(0);
 248   /* ./../lib/standard//collection//array.nit:24 */
 249   REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
 250   if (UNTAG_Bool(REGB0)) {
 251   } else {
 252     nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
 253   }
 254   REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
 255   /* ./syntax//flow.nit:77 */
 256   REGB1 = TAG_Int(1);
 257   REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
 258   if (UNTAG_Bool(REGB2)) {
 259   } else {
 260     /* ./../lib/standard//kernel.nit:227 */
 261     REGB1 = TAG_Bool((REGB0)==(REGB1));
 262     /* ./syntax//flow.nit:77 */
 263     REGB2 = REGB1;
 264   }
 265   if (UNTAG_Bool(REGB2)) {
 266     fra.me.REG[4] = CALL_standard___collection___abstract_collection___Collection___first(fra.me.REG[2])(fra.me.REG[2]);
 267     goto label2;
 268   }
 269   /* ./syntax//flow.nit:78 */
 270   fra.me.REG[2] = NEW_MergeFlowContext_syntax___flow___MergeFlowContext___init(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2]);
 271   fra.me.REG[4] = fra.me.REG[2];
 272   goto label2;
 273   label2: while(0);
 274   stack_frame_head = fra.me.prev;
 275   return fra.me.REG[4];
 276 }
 277 val_t syntax___flow___FlowContext___merge_reash(val_t p0, val_t p1, val_t p2, val_t p3){
 278   struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
 279   val_t REGB0;
 280   val_t REGB1;
 281   val_t REGB2;
 282   val_t tmp;
 283   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 284   fra.me.file = LOCATE_syntax___flow;
 285   fra.me.line = 81;
 286   fra.me.meth = LOCATE_syntax___flow___FlowContext___merge_reash;
 287   fra.me.has_broke = 0;
 288   fra.me.REG_size = 6;
 289   fra.me.REG[0] = NIT_NULL;
 290   fra.me.REG[1] = NIT_NULL;
 291   fra.me.REG[2] = NIT_NULL;
 292   fra.me.REG[3] = NIT_NULL;
 293   fra.me.REG[4] = NIT_NULL;
 294   fra.me.REG[5] = NIT_NULL;
 295   fra.me.REG[0] = p0;
 296   fra.me.REG[1] = p1;
 297   fra.me.REG[2] = p2;
 298   fra.me.REG[3] = p3;
 299   /* ./syntax//flow.nit:86 */
 300   REGB0 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[2])(fra.me.REG[2]);
 301   if (UNTAG_Bool(REGB0)) {
 302     /* ./syntax//flow.nit:87 */
 303     REGB0 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[3])(fra.me.REG[3]);
 304     if (UNTAG_Bool(REGB0)) {
 305       /* ./syntax//flow.nit:88 */
 306       fra.me.REG[4] = CALL_syntax___flow___FlowContext___sub_unreash(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 307       goto label1;
 308     } else {
 309       /* ./syntax//flow.nit:90 */
 310       fra.me.REG[5] = fra.me.REG[3];
 311       /* ./syntax//flow.nit:91 */
 312       fra.me.REG[3] = fra.me.REG[2];
 313       /* ./syntax//flow.nit:92 */
 314       fra.me.REG[2] = fra.me.REG[5];
 315     }
 316   }
 317   /* ./syntax//flow.nit:96 */
 318   REGB0 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[3])(fra.me.REG[3]);
 319   if (UNTAG_Bool(REGB0)) {
 320     REGB0 = TAG_Bool(true);
 321   } else {
 322     REGB1 = TAG_Bool(IS_EQUAL_OO(fra.me.REG[2],fra.me.REG[3]));
 323     if (UNTAG_Bool(REGB1)) {
 324     } else {
 325       REGB2 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[3]);
 326       REGB1 = REGB2;
 327     }
 328     REGB0 = REGB1;
 329   }
 330   if (UNTAG_Bool(REGB0)) {
 331     /* ./syntax//flow.nit:97 */
 332     fra.me.REG[4] = fra.me.REG[2];
 333     goto label1;
 334   } else {
 335     /* ./syntax//flow.nit:104 */
 336     REGB0 = TAG_Int(2);
 337     fra.me.REG[5] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
 338     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[5])(fra.me.REG[5], fra.me.REG[2]);
 339     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[5])(fra.me.REG[5], fra.me.REG[3]);
 340     fra.me.REG[5] = CALL_syntax___flow___FlowContext___merge(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[5]);
 341     fra.me.REG[4] = fra.me.REG[5];
 342     goto label1;
 343   }
 344   label1: while(0);
 345   stack_frame_head = fra.me.prev;
 346   return fra.me.REG[4];
 347 }
 348 val_t syntax___flow___FlowContext___node(val_t p0){
 349   struct {struct stack_frame_t me;} fra;
 350   val_t REGB0;
 351   val_t tmp;
 352   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 353   fra.me.file = LOCATE_syntax___flow;
 354   fra.me.line = 111;
 355   fra.me.meth = LOCATE_syntax___flow___FlowContext___node;
 356   fra.me.has_broke = 0;
 357   fra.me.REG_size = 1;
 358   fra.me.REG[0] = NIT_NULL;
 359   fra.me.REG[0] = p0;
 360   /* ./syntax//flow.nit:111 */
 361   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____node(fra.me.REG[0])!=NIT_NULL);
 362   if (UNTAG_Bool(REGB0)) {
 363   } else {
 364     nit_abort("Uninitialized attribute %s", "_node", LOCATE_syntax___flow, 111);
 365   }
 366   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____node(fra.me.REG[0]);
 367   stack_frame_head = fra.me.prev;
 368   return fra.me.REG[0];
 369 }
 370 void syntax___flow___FlowContext___init(val_t p0, val_t p1, val_t p2, int* init_table){
 371   int itpos0 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___FlowContext].i;
 372   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 373   val_t tmp;
 374   if (init_table[itpos0]) return;
 375   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 376   fra.me.file = LOCATE_syntax___flow;
 377   fra.me.line = 114;
 378   fra.me.meth = LOCATE_syntax___flow___FlowContext___init;
 379   fra.me.has_broke = 0;
 380   fra.me.REG_size = 3;
 381   fra.me.REG[0] = NIT_NULL;
 382   fra.me.REG[1] = NIT_NULL;
 383   fra.me.REG[2] = NIT_NULL;
 384   fra.me.REG[0] = p0;
 385   fra.me.REG[1] = p1;
 386   fra.me.REG[2] = p2;
 387   /* ./syntax//flow.nit:116 */
 388   ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0]) = fra.me.REG[1];
 389   /* ./syntax//flow.nit:117 */
 390   ATTR_syntax___flow___FlowContext____node(fra.me.REG[0]) = fra.me.REG[2];
 391   stack_frame_head = fra.me.prev;
 392   init_table[itpos0] = 1;
 393   return;
 394 }
 395 val_t syntax___flow___FlowContext___unreash(val_t p0){
 396   struct {struct stack_frame_t me;} fra;
 397   val_t REGB0;
 398   val_t tmp;
 399   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 400   fra.me.file = LOCATE_syntax___flow;
 401   fra.me.line = 120;
 402   fra.me.meth = LOCATE_syntax___flow___FlowContext___unreash;
 403   fra.me.has_broke = 0;
 404   fra.me.REG_size = 1;
 405   fra.me.REG[0] = NIT_NULL;
 406   fra.me.REG[0] = p0;
 407   /* ./syntax//flow.nit:120 */
 408   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____unreash(fra.me.REG[0])!=NIT_NULL);
 409   if (UNTAG_Bool(REGB0)) {
 410   } else {
 411     nit_abort("Uninitialized attribute %s", "_unreash", LOCATE_syntax___flow, 120);
 412   }
 413   REGB0 = ATTR_syntax___flow___FlowContext____unreash(fra.me.REG[0]);
 414   stack_frame_head = fra.me.prev;
 415   return REGB0;
 416 }
 417 val_t syntax___flow___FlowContext___already_unreash(val_t p0){
 418   struct {struct stack_frame_t me;} fra;
 419   val_t REGB0;
 420   val_t tmp;
 421   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 422   fra.me.file = LOCATE_syntax___flow;
 423   fra.me.line = 123;
 424   fra.me.meth = LOCATE_syntax___flow___FlowContext___already_unreash;
 425   fra.me.has_broke = 0;
 426   fra.me.REG_size = 1;
 427   fra.me.REG[0] = NIT_NULL;
 428   fra.me.REG[0] = p0;
 429   /* ./syntax//flow.nit:123 */
 430   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____already_unreash(fra.me.REG[0])!=NIT_NULL);
 431   if (UNTAG_Bool(REGB0)) {
 432   } else {
 433     nit_abort("Uninitialized attribute %s", "_already_unreash", LOCATE_syntax___flow, 123);
 434   }
 435   REGB0 = ATTR_syntax___flow___FlowContext____already_unreash(fra.me.REG[0]);
 436   stack_frame_head = fra.me.prev;
 437   return REGB0;
 438 }
 439 void syntax___flow___FlowContext___already_unreash__eq(val_t p0, val_t p1){
 440   struct {struct stack_frame_t me;} fra;
 441   val_t REGB0;
 442   val_t tmp;
 443   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 444   fra.me.file = LOCATE_syntax___flow;
 445   fra.me.line = 123;
 446   fra.me.meth = LOCATE_syntax___flow___FlowContext___already_unreash__eq;
 447   fra.me.has_broke = 0;
 448   fra.me.REG_size = 1;
 449   fra.me.REG[0] = NIT_NULL;
 450   fra.me.REG[0] = p0;
 451   REGB0 = p1;
 452   /* ./syntax//flow.nit:123 */
 453   ATTR_syntax___flow___FlowContext____already_unreash(fra.me.REG[0]) = REGB0;
 454   stack_frame_head = fra.me.prev;
 455   return;
 456 }
 457 val_t syntax___flow___FlowContext___set_variables(val_t p0){
 458   struct {struct stack_frame_t me;} fra;
 459   val_t REGB0;
 460   val_t tmp;
 461   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 462   fra.me.file = LOCATE_syntax___flow;
 463   fra.me.line = 127;
 464   fra.me.meth = LOCATE_syntax___flow___FlowContext___set_variables;
 465   fra.me.has_broke = 0;
 466   fra.me.REG_size = 1;
 467   fra.me.REG[0] = NIT_NULL;
 468   fra.me.REG[0] = p0;
 469   /* ./syntax//flow.nit:127 */
 470   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
 471   if (UNTAG_Bool(REGB0)) {
 472   } else {
 473     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 127);
 474   }
 475   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
 476   stack_frame_head = fra.me.prev;
 477   return fra.me.REG[0];
 478 }
 479 val_t syntax___flow___FlowContext___is_set(val_t p0, val_t p1){
 480   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
 481   val_t REGB0;
 482   val_t tmp;
 483   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 484   fra.me.file = LOCATE_syntax___flow;
 485   fra.me.line = 130;
 486   fra.me.meth = LOCATE_syntax___flow___FlowContext___is_set;
 487   fra.me.has_broke = 0;
 488   fra.me.REG_size = 2;
 489   fra.me.REG[0] = NIT_NULL;
 490   fra.me.REG[1] = NIT_NULL;
 491   fra.me.REG[0] = p0;
 492   fra.me.REG[1] = p1;
 493   /* ./syntax//flow.nit:133 */
 494   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
 495   if (UNTAG_Bool(REGB0)) {
 496   } else {
 497     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 133);
 498   }
 499   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
 500   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 501   goto label1;
 502   label1: while(0);
 503   stack_frame_head = fra.me.prev;
 504   return REGB0;
 505 }
 506 void syntax___flow___RootFlowContext___init(val_t p0, val_t p1, val_t p2, int* init_table){
 507   int itpos1 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___RootFlowContext].i;
 508   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 509   val_t tmp;
 510   if (init_table[itpos1]) return;
 511   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 512   fra.me.file = LOCATE_syntax___flow;
 513   fra.me.line = 140;
 514   fra.me.meth = LOCATE_syntax___flow___RootFlowContext___init;
 515   fra.me.has_broke = 0;
 516   fra.me.REG_size = 3;
 517   fra.me.REG[0] = NIT_NULL;
 518   fra.me.REG[1] = NIT_NULL;
 519   fra.me.REG[2] = NIT_NULL;
 520   fra.me.REG[0] = p0;
 521   fra.me.REG[1] = p1;
 522   fra.me.REG[2] = p2;
 523   /* ./syntax//flow.nit:142 */
 524   CALL_syntax___flow___FlowContext___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
 525   stack_frame_head = fra.me.prev;
 526   init_table[itpos1] = 1;
 527   return;
 528 }
 529 val_t syntax___flow___SubFlowContext___prev(val_t p0){
 530   struct {struct stack_frame_t me;} fra;
 531   val_t REGB0;
 532   val_t tmp;
 533   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 534   fra.me.file = LOCATE_syntax___flow;
 535   fra.me.line = 149;
 536   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___prev;
 537   fra.me.has_broke = 0;
 538   fra.me.REG_size = 1;
 539   fra.me.REG[0] = NIT_NULL;
 540   fra.me.REG[0] = p0;
 541   /* ./syntax//flow.nit:149 */
 542   REGB0 = TAG_Bool(ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0])!=NIT_NULL);
 543   if (UNTAG_Bool(REGB0)) {
 544   } else {
 545     nit_abort("Uninitialized attribute %s", "_prev", LOCATE_syntax___flow, 149);
 546   }
 547   fra.me.REG[0] = ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0]);
 548   stack_frame_head = fra.me.prev;
 549   return fra.me.REG[0];
 550 }
 551 val_t syntax___flow___SubFlowContext___is_set(val_t p0, val_t p1){
 552   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 553   val_t REGB0;
 554   val_t REGB1;
 555   val_t tmp;
 556   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 557   fra.me.file = LOCATE_syntax___flow;
 558   fra.me.line = 151;
 559   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___is_set;
 560   fra.me.has_broke = 0;
 561   fra.me.REG_size = 3;
 562   fra.me.REG[0] = NIT_NULL;
 563   fra.me.REG[1] = NIT_NULL;
 564   fra.me.REG[2] = NIT_NULL;
 565   fra.me.REG[0] = p0;
 566   fra.me.REG[1] = p1;
 567   /* ./syntax//flow.nit:153 */
 568   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
 569   if (UNTAG_Bool(REGB0)) {
 570   } else {
 571     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 153);
 572   }
 573   fra.me.REG[2] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
 574   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
 575   if (UNTAG_Bool(REGB0)) {
 576     REGB0 = TAG_Bool(true);
 577   } else {
 578     REGB1 = TAG_Bool(ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0])!=NIT_NULL);
 579     if (UNTAG_Bool(REGB1)) {
 580     } else {
 581       nit_abort("Uninitialized attribute %s", "_prev", LOCATE_syntax___flow, 153);
 582     }
 583     fra.me.REG[0] = ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0]);
 584     REGB1 = CALL_syntax___flow___FlowContext___is_set(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 585     REGB0 = REGB1;
 586   }
 587   goto label1;
 588   label1: while(0);
 589   stack_frame_head = fra.me.prev;
 590   return REGB0;
 591 }
 592 val_t syntax___flow___SubFlowContext___stype(val_t p0, val_t p1){
 593   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
 594   val_t tmp;
 595   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 596   fra.me.file = LOCATE_syntax___flow;
 597   fra.me.line = 156;
 598   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___stype;
 599   fra.me.has_broke = 0;
 600   fra.me.REG_size = 2;
 601   fra.me.REG[0] = NIT_NULL;
 602   fra.me.REG[1] = NIT_NULL;
 603   fra.me.REG[0] = p0;
 604   fra.me.REG[1] = p1;
 605   /* ./syntax//flow.nit:158 */
 606   fra.me.REG[0] = CALL_syntax___flow___SubFlowContext___prev(fra.me.REG[0])(fra.me.REG[0]);
 607   fra.me.REG[1] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 608   goto label1;
 609   label1: while(0);
 610   stack_frame_head = fra.me.prev;
 611   return fra.me.REG[1];
 612 }
 613 void syntax___flow___SubFlowContext___with_prev(val_t p0, val_t p1, val_t p2, int* init_table){
 614   int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___SubFlowContext].i;
 615   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
 616   val_t REGB0;
 617   val_t tmp;
 618   if (init_table[itpos2]) return;
 619   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 620   fra.me.file = LOCATE_syntax___flow;
 621   fra.me.line = 161;
 622   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___with_prev;
 623   fra.me.has_broke = 0;
 624   fra.me.REG_size = 4;
 625   fra.me.REG[0] = NIT_NULL;
 626   fra.me.REG[1] = NIT_NULL;
 627   fra.me.REG[2] = NIT_NULL;
 628   fra.me.REG[3] = NIT_NULL;
 629   fra.me.REG[0] = p0;
 630   fra.me.REG[1] = p1;
 631   fra.me.REG[2] = p2;
 632   /* ./syntax//flow.nit:163 */
 633   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1])!=NIT_NULL);
 634   if (UNTAG_Bool(REGB0)) {
 635   } else {
 636     nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 163);
 637   }
 638   fra.me.REG[3] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1]);
 639   CALL_syntax___flow___FlowContext___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[3], fra.me.REG[2], init_table);
 640   /* ./syntax//flow.nit:164 */
 641   ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0]) = fra.me.REG[1];
 642   stack_frame_head = fra.me.prev;
 643   init_table[itpos2] = 1;
 644   return;
 645 }
 646 val_t syntax___flow___CastFlowContext___stype(val_t p0, val_t p1){
 647   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 648   val_t REGB0;
 649   val_t REGB1;
 650   val_t tmp;
 651   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 652   fra.me.file = LOCATE_syntax___flow;
 653   fra.me.line = 177;
 654   fra.me.meth = LOCATE_syntax___flow___CastFlowContext___stype;
 655   fra.me.has_broke = 0;
 656   fra.me.REG_size = 3;
 657   fra.me.REG[0] = NIT_NULL;
 658   fra.me.REG[1] = NIT_NULL;
 659   fra.me.REG[2] = NIT_NULL;
 660   fra.me.REG[0] = p0;
 661   fra.me.REG[1] = p1;
 662   /* ./syntax//flow.nit:179 */
 663   REGB0 = TAG_Bool(ATTR_syntax___flow___CastFlowContext____variable(fra.me.REG[0])!=NIT_NULL);
 664   if (UNTAG_Bool(REGB0)) {
 665   } else {
 666     nit_abort("Uninitialized attribute %s", "_variable", LOCATE_syntax___flow, 179);
 667   }
 668   fra.me.REG[2] = ATTR_syntax___flow___CastFlowContext____variable(fra.me.REG[0]);
 669   REGB0 = TAG_Bool(IS_EQUAL_OO(fra.me.REG[1],fra.me.REG[2]));
 670   if (UNTAG_Bool(REGB0)) {
 671   } else {
 672     REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
 673     REGB0 = REGB1;
 674   }
 675   if (UNTAG_Bool(REGB0)) {
 676     /* ./syntax//flow.nit:180 */
 677     fra.me.REG[2] = ATTR_syntax___flow___CastFlowContext____stype(fra.me.REG[0]);
 678     goto label1;
 679   } else {
 680     /* ./syntax//flow.nit:182 */
 681     fra.me.REG[0] = CALL_syntax___flow___SubFlowContext___prev(fra.me.REG[0])(fra.me.REG[0]);
 682     fra.me.REG[1] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 683     fra.me.REG[2] = fra.me.REG[1];
 684     goto label1;
 685   }
 686   label1: while(0);
 687   stack_frame_head = fra.me.prev;
 688   return fra.me.REG[2];
 689 }
 690 void syntax___flow___CastFlowContext___init(val_t p0, val_t p1, val_t p2, val_t p3, val_t p4, int* init_table){
 691   int itpos3 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___CastFlowContext].i;
 692   struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
 693   val_t tmp;
 694   if (init_table[itpos3]) return;
 695   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 696   fra.me.file = LOCATE_syntax___flow;
 697   fra.me.line = 186;
 698   fra.me.meth = LOCATE_syntax___flow___CastFlowContext___init;
 699   fra.me.has_broke = 0;
 700   fra.me.REG_size = 5;
 701   fra.me.REG[0] = NIT_NULL;
 702   fra.me.REG[1] = NIT_NULL;
 703   fra.me.REG[2] = NIT_NULL;
 704   fra.me.REG[3] = NIT_NULL;
 705   fra.me.REG[4] = NIT_NULL;
 706   fra.me.REG[0] = p0;
 707   fra.me.REG[1] = p1;
 708   fra.me.REG[2] = p2;
 709   fra.me.REG[3] = p3;
 710   fra.me.REG[4] = p4;
 711   /* ./syntax//flow.nit:188 */
 712   CALL_syntax___flow___SubFlowContext___with_prev(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
 713   /* ./syntax//flow.nit:189 */
 714   ATTR_syntax___flow___CastFlowContext____variable(fra.me.REG[0]) = fra.me.REG[3];
 715   /* ./syntax//flow.nit:190 */
 716   ATTR_syntax___flow___CastFlowContext____stype(fra.me.REG[0]) = fra.me.REG[4];
 717   stack_frame_head = fra.me.prev;
 718   init_table[itpos3] = 1;
 719   return;
 720 }
 721 void syntax___flow___MergeFlowContext___init(val_t p0, val_t p1, val_t p2, val_t p3, int* init_table){
 722   int itpos4 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___MergeFlowContext].i;
 723   struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
 724   val_t REGB0;
 725   val_t tmp;
 726   if (init_table[itpos4]) return;
 727   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 728   fra.me.file = LOCATE_syntax___flow;
 729   fra.me.line = 204;
 730   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___init;
 731   fra.me.has_broke = 0;
 732   fra.me.REG_size = 6;
 733   fra.me.REG[0] = NIT_NULL;
 734   fra.me.REG[1] = NIT_NULL;
 735   fra.me.REG[2] = NIT_NULL;
 736   fra.me.REG[3] = NIT_NULL;
 737   fra.me.REG[4] = NIT_NULL;
 738   fra.me.REG[5] = NIT_NULL;
 739   fra.me.REG[0] = p0;
 740   fra.me.REG[1] = p1;
 741   fra.me.REG[2] = p2;
 742   fra.me.REG[3] = p3;
 743   /* ./syntax//flow.nit:204 */
 744   fra.me.REG[4] = fra.me.REG[0];
 745   /* ./syntax//flow.nit:206 */
 746   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1])!=NIT_NULL);
 747   if (UNTAG_Bool(REGB0)) {
 748   } else {
 749     nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 206);
 750   }
 751   fra.me.REG[5] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1]);
 752   CALL_syntax___flow___FlowContext___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[5], fra.me.REG[2], init_table);
 753   /* ./syntax//flow.nit:207 */
 754   ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[4]) = fra.me.REG[3];
 755   /* ./syntax//flow.nit:208 */
 756   ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[4]) = fra.me.REG[1];
 757   stack_frame_head = fra.me.prev;
 758   init_table[itpos4] = 1;
 759   return;
 760 }
 761 val_t syntax___flow___MergeFlowContext___stype(val_t p0, val_t p1){
 762   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
 763   val_t REGB0;
 764   val_t tmp;
 765   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 766   fra.me.file = LOCATE_syntax___flow;
 767   fra.me.line = 211;
 768   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___stype;
 769   fra.me.has_broke = 0;
 770   fra.me.REG_size = 4;
 771   fra.me.REG[0] = NIT_NULL;
 772   fra.me.REG[1] = NIT_NULL;
 773   fra.me.REG[2] = NIT_NULL;
 774   fra.me.REG[3] = NIT_NULL;
 775   fra.me.REG[0] = p0;
 776   fra.me.REG[1] = p1;
 777   /* ./syntax//flow.nit:213 */
 778   REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0])!=NIT_NULL);
 779   if (UNTAG_Bool(REGB0)) {
 780   } else {
 781     nit_abort("Uninitialized attribute %s", "_stypes", LOCATE_syntax___flow, 213);
 782   }
 783   fra.me.REG[2] = ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0]);
 784   REGB0 = CALL_standard___collection___abstract_collection___MapRead___has_key(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
 785   if (UNTAG_Bool(REGB0)) {
 786     /* ./syntax//flow.nit:214 */
 787     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0])!=NIT_NULL);
 788     if (UNTAG_Bool(REGB0)) {
 789     } else {
 790       nit_abort("Uninitialized attribute %s", "_stypes", LOCATE_syntax___flow, 214);
 791     }
 792     fra.me.REG[2] = ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0]);
 793     fra.me.REG[2] = CALL_standard___collection___abstract_collection___MapRead_____bra(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
 794     goto label1;
 795   } else {
 796     /* ./syntax//flow.nit:216 */
 797     fra.me.REG[3] = CALL_syntax___flow___MergeFlowContext___merge_stype(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 798     /* ./syntax//flow.nit:217 */
 799     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0])!=NIT_NULL);
 800     if (UNTAG_Bool(REGB0)) {
 801     } else {
 802       nit_abort("Uninitialized attribute %s", "_stypes", LOCATE_syntax___flow, 217);
 803     }
 804     fra.me.REG[0] = ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0]);
 805     CALL_standard___collection___abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[3]);
 806     /* ./syntax//flow.nit:218 */
 807     fra.me.REG[2] = fra.me.REG[3];
 808     goto label1;
 809   }
 810   label1: while(0);
 811   stack_frame_head = fra.me.prev;
 812   return fra.me.REG[2];
 813 }
 814 val_t syntax___flow___MergeFlowContext___merge_stype(val_t p0, val_t p1){
 815   struct {struct stack_frame_t me; val_t MORE_REG[8];} fra;
 816   val_t REGB0;
 817   val_t REGB1;
 818   val_t REGB2;
 819   val_t REGB3;
 820   val_t tmp;
 821   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 822   fra.me.file = LOCATE_syntax___flow;
 823   fra.me.line = 222;
 824   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___merge_stype;
 825   fra.me.has_broke = 0;
 826   fra.me.REG_size = 9;
 827   fra.me.REG[0] = NIT_NULL;
 828   fra.me.REG[1] = NIT_NULL;
 829   fra.me.REG[2] = NIT_NULL;
 830   fra.me.REG[3] = NIT_NULL;
 831   fra.me.REG[4] = NIT_NULL;
 832   fra.me.REG[5] = NIT_NULL;
 833   fra.me.REG[6] = NIT_NULL;
 834   fra.me.REG[7] = NIT_NULL;
 835   fra.me.REG[8] = NIT_NULL;
 836   fra.me.REG[0] = p0;
 837   fra.me.REG[1] = p1;
 838   /* ./syntax//flow.nit:224 */
 839   fra.me.REG[2] = NIT_NULL;
 840   /* ./syntax//flow.nit:225 */
 841   REGB0 = TAG_Bool(false);
 842   /* ./syntax//flow.nit:226 */
 843   REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
 844   if (UNTAG_Bool(REGB1)) {
 845   } else {
 846     nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 226);
 847   }
 848   fra.me.REG[3] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
 849   fra.me.REG[3] = CALL_standard___collection___abstract_collection___Collection___first(fra.me.REG[3])(fra.me.REG[3]);
 850   REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
 851   if (UNTAG_Bool(REGB1)) {
 852     nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 226);
 853   }
 854   fra.me.REG[3] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[1]);
 855   /* ./syntax//flow.nit:227 */
 856   REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
 857   if (UNTAG_Bool(REGB1)) {
 858   } else {
 859     nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 227);
 860   }
 861   fra.me.REG[4] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
 862   /* ./../lib/standard//collection//array.nit:269 */
 863   REGB1 = TAG_Int(0);
 864   /* ./../lib/standard//collection//array.nit:270 */
 865   REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4])!=NIT_NULL);
 866   if (UNTAG_Bool(REGB2)) {
 867   } else {
 868     nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
 869   }
 870   REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4]);
 871   /* ./../lib/standard//collection//array.nit:271 */
 872   fra.me.REG[5] = ATTR_standard___collection___array___Array____items(fra.me.REG[4]);
 873   /* ./../lib/standard//collection//array.nit:272 */
 874   while(1) {
 875     /* ./../lib/standard//collection//array.nit:24 */
 876     REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4])!=NIT_NULL);
 877     if (UNTAG_Bool(REGB2)) {
 878     } else {
 879       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
 880     }
 881     REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4]);
 882     REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
 883     if (UNTAG_Bool(REGB3)) {
 884     } else {
 885       nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
 886     }
 887     /* ./../lib/standard//kernel.nit:232 */
 888     REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
 889     /* ./../lib/standard//collection//array.nit:272 */
 890     if (UNTAG_Bool(REGB2)) {
 891       /* ./../lib/standard//collection//array.nit:273 */
 892       REGB2 = TAG_Bool(fra.me.REG[5]==NIT_NULL);
 893       if (UNTAG_Bool(REGB2)) {
 894         nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
 895       }
 896       /* ./../lib/standard//collection//array.nit:718 */
 897       fra.me.REG[6] = ((Nit_NativeArray)fra.me.REG[5])->val[UNTAG_Int(REGB1)];
 898       /* ./syntax//flow.nit:228 */
 899       fra.me.REG[6] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[6])(fra.me.REG[6], fra.me.REG[1]);
 900       /* ./syntax//flow.nit:229 */
 901       REGB2 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 902       if (UNTAG_Bool(REGB2)) {
 903       } else {
 904         REGB3 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 905         if (UNTAG_Bool(REGB3)) {
 906           REGB3 = TAG_Bool(false);
 907           REGB2 = REGB3;
 908         } else {
 909           REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[6])(fra.me.REG[6], NIT_NULL);
 910           REGB2 = REGB3;
 911         }
 912       }
 913       if (UNTAG_Bool(REGB2)) {
 914         /* ./syntax//flow.nit:230 */
 915         fra.me.REG[7] = NIT_NULL;
 916         goto label1;
 917       }
 918       /* ./syntax//flow.nit:232 */
 919       REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[6],fra.me.REG[3]));
 920       if (UNTAG_Bool(REGB2)) {
 921       } else {
 922         REGB3 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 923         if (UNTAG_Bool(REGB3)) {
 924           REGB3 = TAG_Bool(false);
 925           REGB2 = REGB3;
 926         } else {
 927           REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[6])(fra.me.REG[6], fra.me.REG[3]);
 928           REGB2 = REGB3;
 929         }
 930       }
 931       REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
 932       if (UNTAG_Bool(REGB2)) {
 933         /* ./syntax//flow.nit:233 */
 934         fra.me.REG[3] = NIT_NULL;
 935       }
 936       /* ./syntax//flow.nit:235 */
 937       REGB2 = TAG_Bool((fra.me.REG[6]!=NIT_NULL) && VAL_ISA(fra.me.REG[6], COLOR_metamodel___static_type___MMTypeNone, ID_metamodel___static_type___MMTypeNone)) /*cast MMTypeNone*/;
 938       if (UNTAG_Bool(REGB2)) {
 939         /* ./syntax//flow.nit:236 */
 940         REGB2 = TAG_Bool(true);
 941         REGB0 = REGB2;
 942         /* ./syntax//flow.nit:237 */
 943         goto label2;
 944       }
 945       /* ./syntax//flow.nit:239 */
 946       REGB2 = TAG_Bool((fra.me.REG[6]!=NIT_NULL) && VAL_ISA(fra.me.REG[6], COLOR_metamodel___static_type___MMNullableType, ID_metamodel___static_type___MMNullableType)) /*cast MMNullableType*/;
 947       if (UNTAG_Bool(REGB2)) {
 948         /* ./syntax//flow.nit:240 */
 949         REGB2 = TAG_Bool(true);
 950         REGB0 = REGB2;
 951         /* ./syntax//flow.nit:241 */
 952         REGB2 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 953         if (UNTAG_Bool(REGB2)) {
 954           nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 241);
 955         }
 956         fra.me.REG[8] = CALL_metamodel___static_type___MMType___as_notnull(fra.me.REG[6])(fra.me.REG[6]);
 957         fra.me.REG[6] = fra.me.REG[8];
 958       }
 959       /* ./syntax//flow.nit:243 */
 960       REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
 961       if (UNTAG_Bool(REGB2)) {
 962       } else {
 963         REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
 964         if (UNTAG_Bool(REGB3)) {
 965           REGB3 = TAG_Bool(false);
 966           REGB2 = REGB3;
 967         } else {
 968           REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
 969           REGB2 = REGB3;
 970         }
 971       }
 972       if (UNTAG_Bool(REGB2)) {
 973         REGB2 = TAG_Bool(true);
 974       } else {
 975         REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
 976         if (UNTAG_Bool(REGB3)) {
 977           nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 243);
 978         }
 979         REGB3 = CALL_metamodel___static_type___MMType_____l(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[6]);
 980         REGB2 = REGB3;
 981       }
 982       if (UNTAG_Bool(REGB2)) {
 983         /* ./syntax//flow.nit:244 */
 984         fra.me.REG[2] = fra.me.REG[6];
 985       }
 986       label2: while(0);
 987       /* ./../lib/standard//collection//array.nit:274 */
 988       REGB2 = TAG_Int(1);
 989       /* ./../lib/standard//kernel.nit:235 */
 990       REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
 991       /* ./../lib/standard//collection//array.nit:274 */
 992       REGB1 = REGB2;
 993     } else {
 994       /* ./../lib/standard//collection//array.nit:272 */
 995       goto label3;
 996     }
 997   }
 998   label3: while(0);
 999   /* ./syntax//flow.nit:247 */
1000   REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
1001   if (UNTAG_Bool(REGB1)) {
1002   } else {
1003     REGB2 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
1004     if (UNTAG_Bool(REGB2)) {
1005       REGB2 = TAG_Bool(false);
1006       REGB1 = REGB2;
1007     } else {
1008       REGB2 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[3])(fra.me.REG[3], NIT_NULL);
1009       REGB1 = REGB2;
1010     }
1011   }
1012   REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
1013   if (UNTAG_Bool(REGB1)) {
1014     /* ./syntax//flow.nit:248 */
1015     fra.me.REG[7] = fra.me.REG[3];
1016     goto label1;
1017   }
1018   /* ./syntax//flow.nit:250 */
1019   if (UNTAG_Bool(REGB0)) {
1020     /* ./syntax//flow.nit:251 */
1021     REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1022     if (UNTAG_Bool(REGB0)) {
1023     } else {
1024       REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1025       if (UNTAG_Bool(REGB1)) {
1026         REGB1 = TAG_Bool(false);
1027         REGB0 = REGB1;
1028       } else {
1029         REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
1030         REGB0 = REGB1;
1031       }
1032     }
1033     if (UNTAG_Bool(REGB0)) {
1034       /* ./syntax//flow.nit:252 */
1035       REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0])!=NIT_NULL);
1036       if (UNTAG_Bool(REGB0)) {
1037       } else {
1038         nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 252);
1039       }
1040       fra.me.REG[3] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0]);
1041       fra.me.REG[3] = CALL_syntax___syntax_base___AbsSyntaxVisitor___type_none(fra.me.REG[3])(fra.me.REG[3]);
1042       fra.me.REG[7] = fra.me.REG[3];
1043       goto label1;
1044     } else {
1045       /* ./syntax//flow.nit:254 */
1046       REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1047       if (UNTAG_Bool(REGB0)) {
1048         nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 254);
1049       }
1050       fra.me.REG[3] = CALL_metamodel___static_type___MMType___as_nullable(fra.me.REG[2])(fra.me.REG[2]);
1051       fra.me.REG[2] = fra.me.REG[3];
1052     }
1053   }
1054   /* ./syntax//flow.nit:257 */
1055   REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1056   if (UNTAG_Bool(REGB0)) {
1057   } else {
1058     REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1059     if (UNTAG_Bool(REGB1)) {
1060       REGB1 = TAG_Bool(false);
1061       REGB0 = REGB1;
1062     } else {
1063       REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
1064       REGB0 = REGB1;
1065     }
1066   }
1067   if (UNTAG_Bool(REGB0)) {
1068     /* ./syntax//flow.nit:258 */
1069     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0])!=NIT_NULL);
1070     if (UNTAG_Bool(REGB0)) {
1071     } else {
1072       nit_abort("Uninitialized attribute %s", "_base", LOCATE_syntax___flow, 258);
1073     }
1074     fra.me.REG[3] = ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0]);
1075     fra.me.REG[3] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[1]);
1076     fra.me.REG[7] = fra.me.REG[3];
1077     goto label1;
1078   } else {
1079     /* ./syntax//flow.nit:260 */
1080     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
1081     if (UNTAG_Bool(REGB0)) {
1082     } else {
1083       nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 260);
1084     }
1085     fra.me.REG[3] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
1086     /* ./../lib/standard//collection//array.nit:269 */
1087     REGB0 = TAG_Int(0);
1088     /* ./../lib/standard//collection//array.nit:270 */
1089     REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
1090     if (UNTAG_Bool(REGB1)) {
1091     } else {
1092       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
1093     }
1094     REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
1095     /* ./../lib/standard//collection//array.nit:271 */
1096     fra.me.REG[5] = ATTR_standard___collection___array___Array____items(fra.me.REG[3]);
1097     /* ./../lib/standard//collection//array.nit:272 */
1098     while(1) {
1099       /* ./../lib/standard//collection//array.nit:24 */
1100       REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
1101       if (UNTAG_Bool(REGB1)) {
1102       } else {
1103         nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
1104       }
1105       REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
1106       REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
1107       if (UNTAG_Bool(REGB2)) {
1108       } else {
1109         nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
1110       }
1111       /* ./../lib/standard//kernel.nit:232 */
1112       REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
1113       /* ./../lib/standard//collection//array.nit:272 */
1114       if (UNTAG_Bool(REGB1)) {
1115         /* ./../lib/standard//collection//array.nit:273 */
1116         REGB1 = TAG_Bool(fra.me.REG[5]==NIT_NULL);
1117         if (UNTAG_Bool(REGB1)) {
1118           nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
1119         }
1120         /* ./../lib/standard//collection//array.nit:718 */
1121         fra.me.REG[4] = ((Nit_NativeArray)fra.me.REG[5])->val[UNTAG_Int(REGB0)];
1122         /* ./syntax//flow.nit:261 */
1123         fra.me.REG[4] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
1124         /* ./syntax//flow.nit:262 */
1125         REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
1126         if (UNTAG_Bool(REGB1)) {
1127           nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 262);
1128         }
1129         REGB1 = CALL_metamodel___static_type___MMType_____l(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[2]);
1130         REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
1131         if (UNTAG_Bool(REGB1)) {
1132           /* ./syntax//flow.nit:263 */
1133           REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0])!=NIT_NULL);
1134           if (UNTAG_Bool(REGB1)) {
1135           } else {
1136             nit_abort("Uninitialized attribute %s", "_base", LOCATE_syntax___flow, 263);
1137           }
1138           fra.me.REG[4] = ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0]);
1139           fra.me.REG[4] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
1140           fra.me.REG[7] = fra.me.REG[4];
1141           goto label1;
1142         }
1143         /* ./../lib/standard//collection//array.nit:274 */
1144         REGB1 = TAG_Int(1);
1145         /* ./../lib/standard//kernel.nit:235 */
1146         REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
1147         /* ./../lib/standard//collection//array.nit:274 */
1148         REGB0 = REGB1;
1149       } else {
1150         /* ./../lib/standard//collection//array.nit:272 */
1151         goto label4;
1152       }
1153     }
1154     label4: while(0);
1155   }
1156   /* ./syntax//flow.nit:267 */
1157   fra.me.REG[7] = fra.me.REG[2];
1158   goto label1;
1159   label1: while(0);
1160   stack_frame_head = fra.me.prev;
1161   return fra.me.REG[7];
1162 }
1163 val_t syntax___flow___MergeFlowContext___is_set(val_t p0, val_t p1){
1164   struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
1165   val_t REGB0;
1166   val_t REGB1;
1167   val_t REGB2;
1168   val_t REGB3;
1169   val_t tmp;
1170   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
1171   fra.me.file = LOCATE_syntax___flow;
1172   fra.me.line = 270;
1173   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___is_set;
1174   fra.me.has_broke = 0;
1175   fra.me.REG_size = 5;
1176   fra.me.REG[0] = NIT_NULL;
1177   fra.me.REG[1] = NIT_NULL;
1178   fra.me.REG[2] = NIT_NULL;
1179   fra.me.REG[3] = NIT_NULL;
1180   fra.me.REG[4] = NIT_NULL;
1181   fra.me.REG[0] = p0;
1182   fra.me.REG[1] = p1;
1183   /* ./syntax//flow.nit:272 */
1184   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
1185   if (UNTAG_Bool(REGB0)) {
1186   } else {
1187     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 272);
1188   }
1189   fra.me.REG[2] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
1190   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
1191   if (UNTAG_Bool(REGB0)) {
1192     /* ./syntax//flow.nit:273 */
1193     REGB0 = TAG_Bool(true);
1194     goto label1;
1195   } else {
1196     /* ./syntax//flow.nit:275 */
1197     REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
1198     if (UNTAG_Bool(REGB1)) {
1199     } else {
1200       nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 275);
1201     }
1202     fra.me.REG[2] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
1203     /* ./../lib/standard//collection//array.nit:269 */
1204     REGB1 = TAG_Int(0);
1205     /* ./../lib/standard//collection//array.nit:270 */
1206     REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
1207     if (UNTAG_Bool(REGB2)) {
1208     } else {
1209       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
1210     }
1211     REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
1212     /* ./../lib/standard//collection//array.nit:271 */
1213     fra.me.REG[3] = ATTR_standard___collection___array___Array____items(fra.me.REG[2]);
1214     /* ./../lib/standard//collection//array.nit:272 */
1215     while(1) {
1216       /* ./../lib/standard//collection//array.nit:24 */
1217       REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
1218       if (UNTAG_Bool(REGB2)) {
1219       } else {
1220         nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
1221       }
1222       REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
1223       REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
1224       if (UNTAG_Bool(REGB3)) {
1225       } else {
1226         nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
1227       }
1228       /* ./../lib/standard//kernel.nit:232 */
1229       REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
1230       /* ./../lib/standard//collection//array.nit:272 */
1231       if (UNTAG_Bool(REGB2)) {
1232         /* ./../lib/standard//collection//array.nit:273 */
1233         REGB2 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
1234         if (UNTAG_Bool(REGB2)) {
1235           nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
1236         }
1237         /* ./../lib/standard//collection//array.nit:718 */
1238         fra.me.REG[4] = ((Nit_NativeArray)fra.me.REG[3])->val[UNTAG_Int(REGB1)];
1239         /* ./syntax//flow.nit:276 */
1240         REGB2 = CALL_syntax___flow___FlowContext___is_set(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
1241         REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
1242         if (UNTAG_Bool(REGB2)) {
1243           /* ./syntax//flow.nit:277 */
1244           REGB2 = TAG_Bool(false);
1245           REGB0 = REGB2;
1246           goto label1;
1247         }
1248         /* ./../lib/standard//collection//array.nit:274 */
1249         REGB2 = TAG_Int(1);
1250         /* ./../lib/standard//kernel.nit:235 */
1251         REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
1252         /* ./../lib/standard//collection//array.nit:274 */
1253         REGB1 = REGB2;
1254       } else {
1255         /* ./../lib/standard//collection//array.nit:272 */
1256         goto label2;
1257       }
1258     }
1259     label2: while(0);
1260     /* ./syntax//flow.nit:280 */
1261     REGB1 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
1262     if (UNTAG_Bool(REGB1)) {
1263     } else {
1264       nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 280);
1265     }
1266     fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
1267     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
1268     /* ./syntax//flow.nit:281 */
1269     REGB1 = TAG_Bool(true);
1270     REGB0 = REGB1;
1271     goto label1;
1272   }
1273   label1: while(0);
1274   stack_frame_head = fra.me.prev;
1275   return REGB0;
1276 }
1277 val_t syntax___flow___Variable___must_be_set(val_t p0){
1278   struct {struct stack_frame_t me;} fra;
1279   val_t REGB0;
1280   val_t tmp;
1281   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
1282   fra.me.file = LOCATE_syntax___flow;
1283   fra.me.line = 288;
1284   fra.me.meth = LOCATE_syntax___flow___Variable___must_be_set;
1285   fra.me.has_broke = 0;
1286   fra.me.REG_size = 1;
1287   fra.me.REG[0] = NIT_NULL;
1288   fra.me.REG[0] = p0;
1289   /* ./syntax//flow.nit:289 */
1290   REGB0 = TAG_Bool(false);
1291   goto label1;
1292   label1: while(0);
1293   stack_frame_head = fra.me.prev;
1294   return REGB0;
1295 }
1296 val_t syntax___flow___VarVariable___must_be_set(val_t p0){
1297   struct {struct stack_frame_t me;} fra;
1298   val_t REGB0;
1299   val_t tmp;
1300   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
1301   fra.me.file = LOCATE_syntax___flow;
1302   fra.me.line = 293;
1303   fra.me.meth = LOCATE_syntax___flow___VarVariable___must_be_set;
1304   fra.me.has_broke = 0;
1305   fra.me.REG_size = 1;
1306   fra.me.REG[0] = NIT_NULL;
1307   fra.me.REG[0] = p0;
1308   /* ./syntax//flow.nit:293 */
1309   REGB0 = TAG_Bool(true);
1310   goto label1;
1311   label1: while(0);
1312   stack_frame_head = fra.me.prev;
1313   return REGB0;
1314 }