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.nitni_local_ref_head = NULL;
  17   fra.me.REG[0] = NIT_NULL;
  18   fra.me.REG[1] = NIT_NULL;
  19   fra.me.REG[2] = NIT_NULL;
  20   fra.me.REG[3] = NIT_NULL;
  21   fra.me.REG[4] = NIT_NULL;
  22   fra.me.REG[0] = p0;
  23   fra.me.REG[1] = p1;
  24   fra.me.REG[2] = p2;
  25   /* syntax/flow.nit:37 */
  26   REGB0 = CALL_syntax___flow___Variable___must_be_set(fra.me.REG[2])(fra.me.REG[2]);
  27   if (UNTAG_Bool(REGB0)) {
  28     REGB0 = CALL_syntax___flow___FlowContext___is_set(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2]);
  29     REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
  30   } else {
  31     REGB1 = TAG_Bool(false);
  32     REGB0 = REGB1;
  33   }
  34   if (UNTAG_Bool(REGB0)) {
  35     /* syntax/flow.nit:38 */
  36     REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0])!=NIT_NULL);
  37     if (UNTAG_Bool(REGB0)) {
  38     } else {
  39       nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 38);
  40     }
  41     fra.me.REG[0] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0]);
  42     REGB0 = TAG_Int(3);
  43     fra.me.REG[3] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
  44     if (!once_value_1) {
  45       fra.me.REG[4] = BOX_NativeString("Error: variable '");
  46       REGB0 = TAG_Int(17);
  47       fra.me.REG[4] = NEW_String_standard___string___String___with_native(fra.me.REG[4], REGB0);
  48       once_value_1 = fra.me.REG[4];
  49       register_static_object(&once_value_1);
  50     } else fra.me.REG[4] = once_value_1;
  51     fra.me.REG[4] = fra.me.REG[4];
  52     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[4]);
  53     fra.me.REG[2] = CALL_standard___string___Object___to_s(fra.me.REG[2])(fra.me.REG[2]);
  54     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[2]);
  55     if (!once_value_2) {
  56       fra.me.REG[2] = BOX_NativeString("' is possibly unset.");
  57       REGB0 = TAG_Int(20);
  58       fra.me.REG[2] = NEW_String_standard___string___String___with_native(fra.me.REG[2], REGB0);
  59       once_value_2 = fra.me.REG[2];
  60       register_static_object(&once_value_2);
  61     } else fra.me.REG[2] = once_value_2;
  62     fra.me.REG[2] = fra.me.REG[2];
  63     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[2]);
  64     fra.me.REG[3] = CALL_standard___string___Object___to_s(fra.me.REG[3])(fra.me.REG[3]);
  65     CALL_syntax___syntax_base___AbsSyntaxVisitor___error(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[3]);
  66   }
  67   stack_frame_head = fra.me.prev;
  68   return;
  69 }
  70 val_t syntax___flow___FlowContext___stype(val_t p0, val_t p1){
  71   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
  72   val_t tmp;
  73   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
  74   fra.me.file = LOCATE_syntax___flow;
  75   fra.me.line = 42;
  76   fra.me.meth = LOCATE_syntax___flow___FlowContext___stype;
  77   fra.me.has_broke = 0;
  78   fra.me.REG_size = 2;
  79   fra.me.nitni_local_ref_head = NULL;
  80   fra.me.REG[0] = NIT_NULL;
  81   fra.me.REG[1] = NIT_NULL;
  82   fra.me.REG[0] = p0;
  83   fra.me.REG[1] = p1;
  84   /* syntax/flow.nit:46 */
  85   fra.me.REG[1] = CALL_syntax___syntax_base___Variable___stype(fra.me.REG[1])(fra.me.REG[1]);
  86   goto label1;
  87   label1: while(0);
  88   stack_frame_head = fra.me.prev;
  89   return fra.me.REG[1];
  90 }
  91 val_t syntax___flow___FlowContext___sub_setvariable(val_t p0, val_t p1){
  92   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
  93   val_t REGB0;
  94   val_t tmp;
  95   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
  96   fra.me.file = LOCATE_syntax___flow;
  97   fra.me.line = 49;
  98   fra.me.meth = LOCATE_syntax___flow___FlowContext___sub_setvariable;
  99   fra.me.has_broke = 0;
 100   fra.me.REG_size = 3;
 101   fra.me.nitni_local_ref_head = NULL;
 102   fra.me.REG[0] = NIT_NULL;
 103   fra.me.REG[1] = NIT_NULL;
 104   fra.me.REG[2] = NIT_NULL;
 105   fra.me.REG[0] = p0;
 106   fra.me.REG[1] = p1;
 107   /* syntax/flow.nit:52 */
 108   fra.me.REG[2] = CALL_syntax___flow___FlowContext___node(fra.me.REG[0])(fra.me.REG[0]);
 109   fra.me.REG[2] = NEW_SubFlowContext_syntax___flow___SubFlowContext___with_prev(fra.me.REG[0], fra.me.REG[2]);
 110   /* syntax/flow.nit:53 */
 111   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[2])!=NIT_NULL);
 112   if (UNTAG_Bool(REGB0)) {
 113   } else {
 114     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 53);
 115   }
 116   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[2]);
 117   CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 118   /* syntax/flow.nit:54 */
 119   goto label1;
 120   label1: while(0);
 121   stack_frame_head = fra.me.prev;
 122   return fra.me.REG[2];
 123 }
 124 val_t syntax___flow___FlowContext___sub_unreash(val_t p0, val_t p1){
 125   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
 126   val_t REGB0;
 127   val_t tmp;
 128   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 129   fra.me.file = LOCATE_syntax___flow;
 130   fra.me.line = 57;
 131   fra.me.meth = LOCATE_syntax___flow___FlowContext___sub_unreash;
 132   fra.me.has_broke = 0;
 133   fra.me.REG_size = 2;
 134   fra.me.nitni_local_ref_head = NULL;
 135   fra.me.REG[0] = NIT_NULL;
 136   fra.me.REG[1] = NIT_NULL;
 137   fra.me.REG[0] = p0;
 138   fra.me.REG[1] = p1;
 139   /* syntax/flow.nit:60 */
 140   fra.me.REG[1] = NEW_SubFlowContext_syntax___flow___SubFlowContext___with_prev(fra.me.REG[0], fra.me.REG[1]);
 141   /* syntax/flow.nit:61 */
 142   REGB0 = TAG_Bool(true);
 143   ATTR_syntax___flow___FlowContext____unreash(fra.me.REG[1]) = REGB0;
 144   /* syntax/flow.nit:62 */
 145   goto label1;
 146   label1: while(0);
 147   stack_frame_head = fra.me.prev;
 148   return fra.me.REG[1];
 149 }
 150 val_t syntax___flow___FlowContext___sub_with(val_t p0, val_t p1, val_t p2, val_t p3){
 151   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
 152   val_t tmp;
 153   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 154   fra.me.file = LOCATE_syntax___flow;
 155   fra.me.line = 65;
 156   fra.me.meth = LOCATE_syntax___flow___FlowContext___sub_with;
 157   fra.me.has_broke = 0;
 158   fra.me.REG_size = 4;
 159   fra.me.nitni_local_ref_head = NULL;
 160   fra.me.REG[0] = NIT_NULL;
 161   fra.me.REG[1] = NIT_NULL;
 162   fra.me.REG[2] = NIT_NULL;
 163   fra.me.REG[3] = NIT_NULL;
 164   fra.me.REG[0] = p0;
 165   fra.me.REG[1] = p1;
 166   fra.me.REG[2] = p2;
 167   fra.me.REG[3] = p3;
 168   /* syntax/flow.nit:68 */
 169   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]);
 170   goto label1;
 171   label1: while(0);
 172   stack_frame_head = fra.me.prev;
 173   return fra.me.REG[3];
 174 }
 175 val_t syntax___flow___FlowContext___merge(val_t p0, val_t p1, val_t p2){
 176   struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
 177   val_t REGB0;
 178   val_t REGB1;
 179   val_t REGB2;
 180   val_t tmp;
 181   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 182   fra.me.file = LOCATE_syntax___flow;
 183   fra.me.line = 71;
 184   fra.me.meth = LOCATE_syntax___flow___FlowContext___merge;
 185   fra.me.has_broke = 0;
 186   fra.me.REG_size = 6;
 187   fra.me.nitni_local_ref_head = NULL;
 188   fra.me.REG[0] = NIT_NULL;
 189   fra.me.REG[1] = NIT_NULL;
 190   fra.me.REG[2] = NIT_NULL;
 191   fra.me.REG[3] = NIT_NULL;
 192   fra.me.REG[4] = NIT_NULL;
 193   fra.me.REG[5] = NIT_NULL;
 194   fra.me.REG[0] = p0;
 195   fra.me.REG[1] = p1;
 196   fra.me.REG[2] = p2;
 197   /* ../lib/standard/collection/array.nit:266 */
 198   fra.me.REG[3] = fra.me.REG[2];
 199   /* ../lib/standard/collection/array.nit:269 */
 200   REGB0 = TAG_Int(0);
 201   /* ../lib/standard/collection/array.nit:270 */
 202   REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
 203   if (UNTAG_Bool(REGB1)) {
 204   } else {
 205     nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
 206   }
 207   REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
 208   /* ../lib/standard/collection/array.nit:271 */
 209   fra.me.REG[4] = ATTR_standard___collection___array___Array____items(fra.me.REG[3]);
 210   /* ../lib/standard/collection/array.nit:272 */
 211   while(1) {
 212     /* ../lib/standard/collection/array.nit:24 */
 213     REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
 214     if (UNTAG_Bool(REGB1)) {
 215     } else {
 216       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
 217     }
 218     REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
 219     REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
 220     if (UNTAG_Bool(REGB2)) {
 221     } else {
 222       nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
 223     }
 224     /* ../lib/standard/kernel.nit:232 */
 225     REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
 226     /* ../lib/standard/collection/array.nit:272 */
 227     if (UNTAG_Bool(REGB1)) {
 228       /* ../lib/standard/collection/array.nit:273 */
 229       REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
 230       if (UNTAG_Bool(REGB1)) {
 231         nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
 232       }
 233       /* ../lib/standard/collection/array.nit:718 */
 234       fra.me.REG[5] = ((Nit_NativeArray)fra.me.REG[4])->val[UNTAG_Int(REGB0)];
 235       /* syntax/flow.nit:76 */
 236       REGB1 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[5])(fra.me.REG[5]);
 237       REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
 238       if (UNTAG_Bool(REGB1)) {
 239       } else {
 240         nit_abort("Assert failed", NULL, LOCATE_syntax___flow, 76);
 241       }
 242       /* ../lib/standard/collection/array.nit:274 */
 243       REGB1 = TAG_Int(1);
 244       /* ../lib/standard/kernel.nit:235 */
 245       REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
 246       /* ../lib/standard/collection/array.nit:274 */
 247       REGB0 = REGB1;
 248     } else {
 249       /* ../lib/standard/collection/array.nit:272 */
 250       goto label1;
 251     }
 252   }
 253   label1: while(0);
 254   /* ../lib/standard/collection/array.nit:24 */
 255   REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
 256   if (UNTAG_Bool(REGB0)) {
 257   } else {
 258     nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
 259   }
 260   REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
 261   /* syntax/flow.nit:77 */
 262   REGB1 = TAG_Int(1);
 263   REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
 264   if (UNTAG_Bool(REGB2)) {
 265   } else {
 266     /* ../lib/standard/kernel.nit:227 */
 267     REGB1 = TAG_Bool((REGB0)==(REGB1));
 268     /* syntax/flow.nit:77 */
 269     REGB2 = REGB1;
 270   }
 271   if (UNTAG_Bool(REGB2)) {
 272     fra.me.REG[4] = CALL_standard___collection___abstract_collection___Collection___first(fra.me.REG[2])(fra.me.REG[2]);
 273     goto label2;
 274   }
 275   /* syntax/flow.nit:78 */
 276   fra.me.REG[2] = NEW_MergeFlowContext_syntax___flow___MergeFlowContext___init(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2]);
 277   fra.me.REG[4] = fra.me.REG[2];
 278   goto label2;
 279   label2: while(0);
 280   stack_frame_head = fra.me.prev;
 281   return fra.me.REG[4];
 282 }
 283 val_t syntax___flow___FlowContext___merge_reash(val_t p0, val_t p1, val_t p2, val_t p3){
 284   struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
 285   val_t REGB0;
 286   val_t REGB1;
 287   val_t REGB2;
 288   val_t tmp;
 289   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 290   fra.me.file = LOCATE_syntax___flow;
 291   fra.me.line = 81;
 292   fra.me.meth = LOCATE_syntax___flow___FlowContext___merge_reash;
 293   fra.me.has_broke = 0;
 294   fra.me.REG_size = 6;
 295   fra.me.nitni_local_ref_head = NULL;
 296   fra.me.REG[0] = NIT_NULL;
 297   fra.me.REG[1] = NIT_NULL;
 298   fra.me.REG[2] = NIT_NULL;
 299   fra.me.REG[3] = NIT_NULL;
 300   fra.me.REG[4] = NIT_NULL;
 301   fra.me.REG[5] = NIT_NULL;
 302   fra.me.REG[0] = p0;
 303   fra.me.REG[1] = p1;
 304   fra.me.REG[2] = p2;
 305   fra.me.REG[3] = p3;
 306   /* syntax/flow.nit:86 */
 307   REGB0 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[2])(fra.me.REG[2]);
 308   if (UNTAG_Bool(REGB0)) {
 309     /* syntax/flow.nit:87 */
 310     REGB0 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[3])(fra.me.REG[3]);
 311     if (UNTAG_Bool(REGB0)) {
 312       /* syntax/flow.nit:88 */
 313       fra.me.REG[4] = CALL_syntax___flow___FlowContext___sub_unreash(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 314       goto label1;
 315     } else {
 316       /* syntax/flow.nit:90 */
 317       fra.me.REG[5] = fra.me.REG[3];
 318       /* syntax/flow.nit:91 */
 319       fra.me.REG[3] = fra.me.REG[2];
 320       /* syntax/flow.nit:92 */
 321       fra.me.REG[2] = fra.me.REG[5];
 322     }
 323   }
 324   /* syntax/flow.nit:96 */
 325   REGB0 = CALL_syntax___flow___FlowContext___unreash(fra.me.REG[3])(fra.me.REG[3]);
 326   if (UNTAG_Bool(REGB0)) {
 327     REGB0 = TAG_Bool(true);
 328   } else {
 329     REGB1 = TAG_Bool(IS_EQUAL_OO(fra.me.REG[2],fra.me.REG[3]));
 330     if (UNTAG_Bool(REGB1)) {
 331     } else {
 332       REGB2 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[3]);
 333       REGB1 = REGB2;
 334     }
 335     REGB0 = REGB1;
 336   }
 337   if (UNTAG_Bool(REGB0)) {
 338     /* syntax/flow.nit:97 */
 339     fra.me.REG[4] = fra.me.REG[2];
 340     goto label1;
 341   } else {
 342     /* syntax/flow.nit:104 */
 343     REGB0 = TAG_Int(2);
 344     fra.me.REG[5] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
 345     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[5])(fra.me.REG[5], fra.me.REG[2]);
 346     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[5])(fra.me.REG[5], fra.me.REG[3]);
 347     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]);
 348     fra.me.REG[4] = fra.me.REG[5];
 349     goto label1;
 350   }
 351   label1: while(0);
 352   stack_frame_head = fra.me.prev;
 353   return fra.me.REG[4];
 354 }
 355 val_t syntax___flow___FlowContext___node(val_t p0){
 356   struct {struct stack_frame_t me;} fra;
 357   val_t REGB0;
 358   val_t tmp;
 359   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 360   fra.me.file = LOCATE_syntax___flow;
 361   fra.me.line = 111;
 362   fra.me.meth = LOCATE_syntax___flow___FlowContext___node;
 363   fra.me.has_broke = 0;
 364   fra.me.REG_size = 1;
 365   fra.me.nitni_local_ref_head = NULL;
 366   fra.me.REG[0] = NIT_NULL;
 367   fra.me.REG[0] = p0;
 368   /* syntax/flow.nit:111 */
 369   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____node(fra.me.REG[0])!=NIT_NULL);
 370   if (UNTAG_Bool(REGB0)) {
 371   } else {
 372     nit_abort("Uninitialized attribute %s", "_node", LOCATE_syntax___flow, 111);
 373   }
 374   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____node(fra.me.REG[0]);
 375   stack_frame_head = fra.me.prev;
 376   return fra.me.REG[0];
 377 }
 378 void syntax___flow___FlowContext___init(val_t p0, val_t p1, val_t p2, int* init_table){
 379   int itpos0 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___FlowContext].i;
 380   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 381   val_t tmp;
 382   if (init_table[itpos0]) return;
 383   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 384   fra.me.file = LOCATE_syntax___flow;
 385   fra.me.line = 114;
 386   fra.me.meth = LOCATE_syntax___flow___FlowContext___init;
 387   fra.me.has_broke = 0;
 388   fra.me.REG_size = 3;
 389   fra.me.nitni_local_ref_head = NULL;
 390   fra.me.REG[0] = NIT_NULL;
 391   fra.me.REG[1] = NIT_NULL;
 392   fra.me.REG[2] = NIT_NULL;
 393   fra.me.REG[0] = p0;
 394   fra.me.REG[1] = p1;
 395   fra.me.REG[2] = p2;
 396   /* syntax/flow.nit:116 */
 397   ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0]) = fra.me.REG[1];
 398   /* syntax/flow.nit:117 */
 399   ATTR_syntax___flow___FlowContext____node(fra.me.REG[0]) = fra.me.REG[2];
 400   stack_frame_head = fra.me.prev;
 401   init_table[itpos0] = 1;
 402   return;
 403 }
 404 val_t syntax___flow___FlowContext___unreash(val_t p0){
 405   struct {struct stack_frame_t me;} fra;
 406   val_t REGB0;
 407   val_t tmp;
 408   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 409   fra.me.file = LOCATE_syntax___flow;
 410   fra.me.line = 120;
 411   fra.me.meth = LOCATE_syntax___flow___FlowContext___unreash;
 412   fra.me.has_broke = 0;
 413   fra.me.REG_size = 1;
 414   fra.me.nitni_local_ref_head = NULL;
 415   fra.me.REG[0] = NIT_NULL;
 416   fra.me.REG[0] = p0;
 417   /* syntax/flow.nit:120 */
 418   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____unreash(fra.me.REG[0])!=NIT_NULL);
 419   if (UNTAG_Bool(REGB0)) {
 420   } else {
 421     nit_abort("Uninitialized attribute %s", "_unreash", LOCATE_syntax___flow, 120);
 422   }
 423   REGB0 = ATTR_syntax___flow___FlowContext____unreash(fra.me.REG[0]);
 424   stack_frame_head = fra.me.prev;
 425   return REGB0;
 426 }
 427 val_t syntax___flow___FlowContext___already_unreash(val_t p0){
 428   struct {struct stack_frame_t me;} fra;
 429   val_t REGB0;
 430   val_t tmp;
 431   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 432   fra.me.file = LOCATE_syntax___flow;
 433   fra.me.line = 123;
 434   fra.me.meth = LOCATE_syntax___flow___FlowContext___already_unreash;
 435   fra.me.has_broke = 0;
 436   fra.me.REG_size = 1;
 437   fra.me.nitni_local_ref_head = NULL;
 438   fra.me.REG[0] = NIT_NULL;
 439   fra.me.REG[0] = p0;
 440   /* syntax/flow.nit:123 */
 441   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____already_unreash(fra.me.REG[0])!=NIT_NULL);
 442   if (UNTAG_Bool(REGB0)) {
 443   } else {
 444     nit_abort("Uninitialized attribute %s", "_already_unreash", LOCATE_syntax___flow, 123);
 445   }
 446   REGB0 = ATTR_syntax___flow___FlowContext____already_unreash(fra.me.REG[0]);
 447   stack_frame_head = fra.me.prev;
 448   return REGB0;
 449 }
 450 void syntax___flow___FlowContext___already_unreash__eq(val_t p0, val_t p1){
 451   struct {struct stack_frame_t me;} fra;
 452   val_t REGB0;
 453   val_t tmp;
 454   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 455   fra.me.file = LOCATE_syntax___flow;
 456   fra.me.line = 123;
 457   fra.me.meth = LOCATE_syntax___flow___FlowContext___already_unreash__eq;
 458   fra.me.has_broke = 0;
 459   fra.me.REG_size = 1;
 460   fra.me.nitni_local_ref_head = NULL;
 461   fra.me.REG[0] = NIT_NULL;
 462   fra.me.REG[0] = p0;
 463   REGB0 = p1;
 464   /* syntax/flow.nit:123 */
 465   ATTR_syntax___flow___FlowContext____already_unreash(fra.me.REG[0]) = REGB0;
 466   stack_frame_head = fra.me.prev;
 467   return;
 468 }
 469 val_t syntax___flow___FlowContext___set_variables(val_t p0){
 470   struct {struct stack_frame_t me;} fra;
 471   val_t REGB0;
 472   val_t tmp;
 473   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 474   fra.me.file = LOCATE_syntax___flow;
 475   fra.me.line = 127;
 476   fra.me.meth = LOCATE_syntax___flow___FlowContext___set_variables;
 477   fra.me.has_broke = 0;
 478   fra.me.REG_size = 1;
 479   fra.me.nitni_local_ref_head = NULL;
 480   fra.me.REG[0] = NIT_NULL;
 481   fra.me.REG[0] = p0;
 482   /* syntax/flow.nit:127 */
 483   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
 484   if (UNTAG_Bool(REGB0)) {
 485   } else {
 486     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 127);
 487   }
 488   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
 489   stack_frame_head = fra.me.prev;
 490   return fra.me.REG[0];
 491 }
 492 val_t syntax___flow___FlowContext___is_set(val_t p0, val_t p1){
 493   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
 494   val_t REGB0;
 495   val_t tmp;
 496   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 497   fra.me.file = LOCATE_syntax___flow;
 498   fra.me.line = 130;
 499   fra.me.meth = LOCATE_syntax___flow___FlowContext___is_set;
 500   fra.me.has_broke = 0;
 501   fra.me.REG_size = 2;
 502   fra.me.nitni_local_ref_head = NULL;
 503   fra.me.REG[0] = NIT_NULL;
 504   fra.me.REG[1] = NIT_NULL;
 505   fra.me.REG[0] = p0;
 506   fra.me.REG[1] = p1;
 507   /* syntax/flow.nit:133 */
 508   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
 509   if (UNTAG_Bool(REGB0)) {
 510   } else {
 511     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 133);
 512   }
 513   fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
 514   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 515   goto label1;
 516   label1: while(0);
 517   stack_frame_head = fra.me.prev;
 518   return REGB0;
 519 }
 520 void syntax___flow___RootFlowContext___init(val_t p0, val_t p1, val_t p2, int* init_table){
 521   int itpos1 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___RootFlowContext].i;
 522   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 523   val_t tmp;
 524   if (init_table[itpos1]) return;
 525   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 526   fra.me.file = LOCATE_syntax___flow;
 527   fra.me.line = 140;
 528   fra.me.meth = LOCATE_syntax___flow___RootFlowContext___init;
 529   fra.me.has_broke = 0;
 530   fra.me.REG_size = 3;
 531   fra.me.nitni_local_ref_head = NULL;
 532   fra.me.REG[0] = NIT_NULL;
 533   fra.me.REG[1] = NIT_NULL;
 534   fra.me.REG[2] = NIT_NULL;
 535   fra.me.REG[0] = p0;
 536   fra.me.REG[1] = p1;
 537   fra.me.REG[2] = p2;
 538   /* syntax/flow.nit:142 */
 539   CALL_syntax___flow___FlowContext___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
 540   stack_frame_head = fra.me.prev;
 541   init_table[itpos1] = 1;
 542   return;
 543 }
 544 val_t syntax___flow___SubFlowContext___prev(val_t p0){
 545   struct {struct stack_frame_t me;} fra;
 546   val_t REGB0;
 547   val_t tmp;
 548   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 549   fra.me.file = LOCATE_syntax___flow;
 550   fra.me.line = 149;
 551   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___prev;
 552   fra.me.has_broke = 0;
 553   fra.me.REG_size = 1;
 554   fra.me.nitni_local_ref_head = NULL;
 555   fra.me.REG[0] = NIT_NULL;
 556   fra.me.REG[0] = p0;
 557   /* syntax/flow.nit:149 */
 558   REGB0 = TAG_Bool(ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0])!=NIT_NULL);
 559   if (UNTAG_Bool(REGB0)) {
 560   } else {
 561     nit_abort("Uninitialized attribute %s", "_prev", LOCATE_syntax___flow, 149);
 562   }
 563   fra.me.REG[0] = ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0]);
 564   stack_frame_head = fra.me.prev;
 565   return fra.me.REG[0];
 566 }
 567 val_t syntax___flow___SubFlowContext___is_set(val_t p0, val_t p1){
 568   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 569   val_t REGB0;
 570   val_t REGB1;
 571   val_t tmp;
 572   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 573   fra.me.file = LOCATE_syntax___flow;
 574   fra.me.line = 151;
 575   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___is_set;
 576   fra.me.has_broke = 0;
 577   fra.me.REG_size = 3;
 578   fra.me.nitni_local_ref_head = NULL;
 579   fra.me.REG[0] = NIT_NULL;
 580   fra.me.REG[1] = NIT_NULL;
 581   fra.me.REG[2] = NIT_NULL;
 582   fra.me.REG[0] = p0;
 583   fra.me.REG[1] = p1;
 584   /* syntax/flow.nit:153 */
 585   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
 586   if (UNTAG_Bool(REGB0)) {
 587   } else {
 588     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 153);
 589   }
 590   fra.me.REG[2] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
 591   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
 592   if (UNTAG_Bool(REGB0)) {
 593     REGB0 = TAG_Bool(true);
 594   } else {
 595     REGB1 = TAG_Bool(ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0])!=NIT_NULL);
 596     if (UNTAG_Bool(REGB1)) {
 597     } else {
 598       nit_abort("Uninitialized attribute %s", "_prev", LOCATE_syntax___flow, 153);
 599     }
 600     fra.me.REG[0] = ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0]);
 601     REGB1 = CALL_syntax___flow___FlowContext___is_set(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 602     REGB0 = REGB1;
 603   }
 604   goto label1;
 605   label1: while(0);
 606   stack_frame_head = fra.me.prev;
 607   return REGB0;
 608 }
 609 val_t syntax___flow___SubFlowContext___stype(val_t p0, val_t p1){
 610   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
 611   val_t tmp;
 612   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 613   fra.me.file = LOCATE_syntax___flow;
 614   fra.me.line = 156;
 615   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___stype;
 616   fra.me.has_broke = 0;
 617   fra.me.REG_size = 2;
 618   fra.me.nitni_local_ref_head = NULL;
 619   fra.me.REG[0] = NIT_NULL;
 620   fra.me.REG[1] = NIT_NULL;
 621   fra.me.REG[0] = p0;
 622   fra.me.REG[1] = p1;
 623   /* syntax/flow.nit:158 */
 624   fra.me.REG[0] = CALL_syntax___flow___SubFlowContext___prev(fra.me.REG[0])(fra.me.REG[0]);
 625   fra.me.REG[1] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 626   goto label1;
 627   label1: while(0);
 628   stack_frame_head = fra.me.prev;
 629   return fra.me.REG[1];
 630 }
 631 void syntax___flow___SubFlowContext___with_prev(val_t p0, val_t p1, val_t p2, int* init_table){
 632   int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___SubFlowContext].i;
 633   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
 634   val_t REGB0;
 635   val_t tmp;
 636   if (init_table[itpos2]) return;
 637   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 638   fra.me.file = LOCATE_syntax___flow;
 639   fra.me.line = 161;
 640   fra.me.meth = LOCATE_syntax___flow___SubFlowContext___with_prev;
 641   fra.me.has_broke = 0;
 642   fra.me.REG_size = 4;
 643   fra.me.nitni_local_ref_head = NULL;
 644   fra.me.REG[0] = NIT_NULL;
 645   fra.me.REG[1] = NIT_NULL;
 646   fra.me.REG[2] = NIT_NULL;
 647   fra.me.REG[3] = NIT_NULL;
 648   fra.me.REG[0] = p0;
 649   fra.me.REG[1] = p1;
 650   fra.me.REG[2] = p2;
 651   /* syntax/flow.nit:163 */
 652   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1])!=NIT_NULL);
 653   if (UNTAG_Bool(REGB0)) {
 654   } else {
 655     nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 163);
 656   }
 657   fra.me.REG[3] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1]);
 658   CALL_syntax___flow___FlowContext___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[3], fra.me.REG[2], init_table);
 659   /* syntax/flow.nit:164 */
 660   ATTR_syntax___flow___SubFlowContext____prev(fra.me.REG[0]) = fra.me.REG[1];
 661   stack_frame_head = fra.me.prev;
 662   init_table[itpos2] = 1;
 663   return;
 664 }
 665 val_t syntax___flow___CastFlowContext___stype(val_t p0, val_t p1){
 666   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
 667   val_t REGB0;
 668   val_t REGB1;
 669   val_t tmp;
 670   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 671   fra.me.file = LOCATE_syntax___flow;
 672   fra.me.line = 177;
 673   fra.me.meth = LOCATE_syntax___flow___CastFlowContext___stype;
 674   fra.me.has_broke = 0;
 675   fra.me.REG_size = 3;
 676   fra.me.nitni_local_ref_head = NULL;
 677   fra.me.REG[0] = NIT_NULL;
 678   fra.me.REG[1] = NIT_NULL;
 679   fra.me.REG[2] = NIT_NULL;
 680   fra.me.REG[0] = p0;
 681   fra.me.REG[1] = p1;
 682   /* syntax/flow.nit:179 */
 683   REGB0 = TAG_Bool(ATTR_syntax___flow___CastFlowContext____variable(fra.me.REG[0])!=NIT_NULL);
 684   if (UNTAG_Bool(REGB0)) {
 685   } else {
 686     nit_abort("Uninitialized attribute %s", "_variable", LOCATE_syntax___flow, 179);
 687   }
 688   fra.me.REG[2] = ATTR_syntax___flow___CastFlowContext____variable(fra.me.REG[0]);
 689   REGB0 = TAG_Bool(IS_EQUAL_OO(fra.me.REG[1],fra.me.REG[2]));
 690   if (UNTAG_Bool(REGB0)) {
 691   } else {
 692     REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
 693     REGB0 = REGB1;
 694   }
 695   if (UNTAG_Bool(REGB0)) {
 696     /* syntax/flow.nit:180 */
 697     fra.me.REG[2] = ATTR_syntax___flow___CastFlowContext____stype(fra.me.REG[0]);
 698     goto label1;
 699   } else {
 700     /* syntax/flow.nit:182 */
 701     fra.me.REG[0] = CALL_syntax___flow___SubFlowContext___prev(fra.me.REG[0])(fra.me.REG[0]);
 702     fra.me.REG[1] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 703     fra.me.REG[2] = fra.me.REG[1];
 704     goto label1;
 705   }
 706   label1: while(0);
 707   stack_frame_head = fra.me.prev;
 708   return fra.me.REG[2];
 709 }
 710 void syntax___flow___CastFlowContext___init(val_t p0, val_t p1, val_t p2, val_t p3, val_t p4, int* init_table){
 711   int itpos3 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___CastFlowContext].i;
 712   struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
 713   val_t tmp;
 714   if (init_table[itpos3]) return;
 715   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 716   fra.me.file = LOCATE_syntax___flow;
 717   fra.me.line = 186;
 718   fra.me.meth = LOCATE_syntax___flow___CastFlowContext___init;
 719   fra.me.has_broke = 0;
 720   fra.me.REG_size = 5;
 721   fra.me.nitni_local_ref_head = NULL;
 722   fra.me.REG[0] = NIT_NULL;
 723   fra.me.REG[1] = NIT_NULL;
 724   fra.me.REG[2] = NIT_NULL;
 725   fra.me.REG[3] = NIT_NULL;
 726   fra.me.REG[4] = NIT_NULL;
 727   fra.me.REG[0] = p0;
 728   fra.me.REG[1] = p1;
 729   fra.me.REG[2] = p2;
 730   fra.me.REG[3] = p3;
 731   fra.me.REG[4] = p4;
 732   /* syntax/flow.nit:188 */
 733   CALL_syntax___flow___SubFlowContext___with_prev(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
 734   /* syntax/flow.nit:189 */
 735   ATTR_syntax___flow___CastFlowContext____variable(fra.me.REG[0]) = fra.me.REG[3];
 736   /* syntax/flow.nit:190 */
 737   ATTR_syntax___flow___CastFlowContext____stype(fra.me.REG[0]) = fra.me.REG[4];
 738   stack_frame_head = fra.me.prev;
 739   init_table[itpos3] = 1;
 740   return;
 741 }
 742 void syntax___flow___MergeFlowContext___init(val_t p0, val_t p1, val_t p2, val_t p3, int* init_table){
 743   int itpos4 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_syntax___flow___MergeFlowContext].i;
 744   struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
 745   val_t REGB0;
 746   val_t tmp;
 747   if (init_table[itpos4]) return;
 748   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 749   fra.me.file = LOCATE_syntax___flow;
 750   fra.me.line = 204;
 751   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___init;
 752   fra.me.has_broke = 0;
 753   fra.me.REG_size = 6;
 754   fra.me.nitni_local_ref_head = NULL;
 755   fra.me.REG[0] = NIT_NULL;
 756   fra.me.REG[1] = NIT_NULL;
 757   fra.me.REG[2] = NIT_NULL;
 758   fra.me.REG[3] = NIT_NULL;
 759   fra.me.REG[4] = NIT_NULL;
 760   fra.me.REG[5] = NIT_NULL;
 761   fra.me.REG[0] = p0;
 762   fra.me.REG[1] = p1;
 763   fra.me.REG[2] = p2;
 764   fra.me.REG[3] = p3;
 765   /* syntax/flow.nit:204 */
 766   fra.me.REG[4] = fra.me.REG[0];
 767   /* syntax/flow.nit:206 */
 768   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1])!=NIT_NULL);
 769   if (UNTAG_Bool(REGB0)) {
 770   } else {
 771     nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 206);
 772   }
 773   fra.me.REG[5] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[1]);
 774   CALL_syntax___flow___FlowContext___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[5], fra.me.REG[2], init_table);
 775   /* syntax/flow.nit:207 */
 776   ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[4]) = fra.me.REG[3];
 777   /* syntax/flow.nit:208 */
 778   ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[4]) = fra.me.REG[1];
 779   stack_frame_head = fra.me.prev;
 780   init_table[itpos4] = 1;
 781   return;
 782 }
 783 val_t syntax___flow___MergeFlowContext___stype(val_t p0, val_t p1){
 784   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
 785   val_t REGB0;
 786   val_t tmp;
 787   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 788   fra.me.file = LOCATE_syntax___flow;
 789   fra.me.line = 211;
 790   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___stype;
 791   fra.me.has_broke = 0;
 792   fra.me.REG_size = 4;
 793   fra.me.nitni_local_ref_head = NULL;
 794   fra.me.REG[0] = NIT_NULL;
 795   fra.me.REG[1] = NIT_NULL;
 796   fra.me.REG[2] = NIT_NULL;
 797   fra.me.REG[3] = NIT_NULL;
 798   fra.me.REG[0] = p0;
 799   fra.me.REG[1] = p1;
 800   /* syntax/flow.nit:213 */
 801   REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0])!=NIT_NULL);
 802   if (UNTAG_Bool(REGB0)) {
 803   } else {
 804     nit_abort("Uninitialized attribute %s", "_stypes", LOCATE_syntax___flow, 213);
 805   }
 806   fra.me.REG[2] = ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0]);
 807   REGB0 = CALL_standard___collection___abstract_collection___MapRead___has_key(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
 808   if (UNTAG_Bool(REGB0)) {
 809     /* syntax/flow.nit:214 */
 810     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0])!=NIT_NULL);
 811     if (UNTAG_Bool(REGB0)) {
 812     } else {
 813       nit_abort("Uninitialized attribute %s", "_stypes", LOCATE_syntax___flow, 214);
 814     }
 815     fra.me.REG[2] = ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0]);
 816     fra.me.REG[2] = CALL_standard___collection___abstract_collection___MapRead_____bra(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
 817     goto label1;
 818   } else {
 819     /* syntax/flow.nit:216 */
 820     fra.me.REG[3] = CALL_syntax___flow___MergeFlowContext___merge_stype(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
 821     /* syntax/flow.nit:217 */
 822     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0])!=NIT_NULL);
 823     if (UNTAG_Bool(REGB0)) {
 824     } else {
 825       nit_abort("Uninitialized attribute %s", "_stypes", LOCATE_syntax___flow, 217);
 826     }
 827     fra.me.REG[0] = ATTR_syntax___flow___MergeFlowContext____stypes(fra.me.REG[0]);
 828     CALL_standard___collection___abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[3]);
 829     /* syntax/flow.nit:218 */
 830     fra.me.REG[2] = fra.me.REG[3];
 831     goto label1;
 832   }
 833   label1: while(0);
 834   stack_frame_head = fra.me.prev;
 835   return fra.me.REG[2];
 836 }
 837 val_t syntax___flow___MergeFlowContext___merge_stype(val_t p0, val_t p1){
 838   struct {struct stack_frame_t me; val_t MORE_REG[8];} fra;
 839   val_t REGB0;
 840   val_t REGB1;
 841   val_t REGB2;
 842   val_t REGB3;
 843   val_t tmp;
 844   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
 845   fra.me.file = LOCATE_syntax___flow;
 846   fra.me.line = 222;
 847   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___merge_stype;
 848   fra.me.has_broke = 0;
 849   fra.me.REG_size = 9;
 850   fra.me.nitni_local_ref_head = NULL;
 851   fra.me.REG[0] = NIT_NULL;
 852   fra.me.REG[1] = NIT_NULL;
 853   fra.me.REG[2] = NIT_NULL;
 854   fra.me.REG[3] = NIT_NULL;
 855   fra.me.REG[4] = NIT_NULL;
 856   fra.me.REG[5] = NIT_NULL;
 857   fra.me.REG[6] = NIT_NULL;
 858   fra.me.REG[7] = NIT_NULL;
 859   fra.me.REG[8] = NIT_NULL;
 860   fra.me.REG[0] = p0;
 861   fra.me.REG[1] = p1;
 862   /* syntax/flow.nit:224 */
 863   fra.me.REG[2] = NIT_NULL;
 864   /* syntax/flow.nit:225 */
 865   REGB0 = TAG_Bool(false);
 866   /* syntax/flow.nit:226 */
 867   REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
 868   if (UNTAG_Bool(REGB1)) {
 869   } else {
 870     nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 226);
 871   }
 872   fra.me.REG[3] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
 873   fra.me.REG[3] = CALL_standard___collection___abstract_collection___Collection___first(fra.me.REG[3])(fra.me.REG[3]);
 874   REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
 875   if (UNTAG_Bool(REGB1)) {
 876     nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 226);
 877   }
 878   fra.me.REG[3] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[1]);
 879   /* syntax/flow.nit:227 */
 880   REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
 881   if (UNTAG_Bool(REGB1)) {
 882   } else {
 883     nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 227);
 884   }
 885   fra.me.REG[4] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
 886   /* ../lib/standard/collection/array.nit:269 */
 887   REGB1 = TAG_Int(0);
 888   /* ../lib/standard/collection/array.nit:270 */
 889   REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4])!=NIT_NULL);
 890   if (UNTAG_Bool(REGB2)) {
 891   } else {
 892     nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
 893   }
 894   REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4]);
 895   /* ../lib/standard/collection/array.nit:271 */
 896   fra.me.REG[5] = ATTR_standard___collection___array___Array____items(fra.me.REG[4]);
 897   /* ../lib/standard/collection/array.nit:272 */
 898   while(1) {
 899     /* ../lib/standard/collection/array.nit:24 */
 900     REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4])!=NIT_NULL);
 901     if (UNTAG_Bool(REGB2)) {
 902     } else {
 903       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
 904     }
 905     REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[4]);
 906     REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
 907     if (UNTAG_Bool(REGB3)) {
 908     } else {
 909       nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
 910     }
 911     /* ../lib/standard/kernel.nit:232 */
 912     REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
 913     /* ../lib/standard/collection/array.nit:272 */
 914     if (UNTAG_Bool(REGB2)) {
 915       /* ../lib/standard/collection/array.nit:273 */
 916       REGB2 = TAG_Bool(fra.me.REG[5]==NIT_NULL);
 917       if (UNTAG_Bool(REGB2)) {
 918         nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
 919       }
 920       /* ../lib/standard/collection/array.nit:718 */
 921       fra.me.REG[6] = ((Nit_NativeArray)fra.me.REG[5])->val[UNTAG_Int(REGB1)];
 922       /* syntax/flow.nit:228 */
 923       fra.me.REG[6] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[6])(fra.me.REG[6], fra.me.REG[1]);
 924       /* syntax/flow.nit:229 */
 925       REGB2 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 926       if (UNTAG_Bool(REGB2)) {
 927       } else {
 928         REGB3 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 929         if (UNTAG_Bool(REGB3)) {
 930           REGB3 = TAG_Bool(false);
 931           REGB2 = REGB3;
 932         } else {
 933           REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[6])(fra.me.REG[6], NIT_NULL);
 934           REGB2 = REGB3;
 935         }
 936       }
 937       if (UNTAG_Bool(REGB2)) {
 938         /* syntax/flow.nit:230 */
 939         fra.me.REG[7] = NIT_NULL;
 940         goto label1;
 941       }
 942       /* syntax/flow.nit:232 */
 943       REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[6],fra.me.REG[3]));
 944       if (UNTAG_Bool(REGB2)) {
 945       } else {
 946         REGB3 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 947         if (UNTAG_Bool(REGB3)) {
 948           REGB3 = TAG_Bool(false);
 949           REGB2 = REGB3;
 950         } else {
 951           REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[6])(fra.me.REG[6], fra.me.REG[3]);
 952           REGB2 = REGB3;
 953         }
 954       }
 955       REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
 956       if (UNTAG_Bool(REGB2)) {
 957         /* syntax/flow.nit:233 */
 958         fra.me.REG[3] = NIT_NULL;
 959       }
 960       /* syntax/flow.nit:235 */
 961       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*/;
 962       if (UNTAG_Bool(REGB2)) {
 963         /* syntax/flow.nit:236 */
 964         REGB2 = TAG_Bool(true);
 965         REGB0 = REGB2;
 966         /* syntax/flow.nit:237 */
 967         goto label2;
 968       }
 969       /* syntax/flow.nit:239 */
 970       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*/;
 971       if (UNTAG_Bool(REGB2)) {
 972         /* syntax/flow.nit:240 */
 973         REGB2 = TAG_Bool(true);
 974         REGB0 = REGB2;
 975         /* syntax/flow.nit:241 */
 976         REGB2 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
 977         if (UNTAG_Bool(REGB2)) {
 978           nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 241);
 979         }
 980         fra.me.REG[8] = CALL_metamodel___static_type___MMType___as_notnull(fra.me.REG[6])(fra.me.REG[6]);
 981         fra.me.REG[6] = fra.me.REG[8];
 982       }
 983       /* syntax/flow.nit:243 */
 984       REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
 985       if (UNTAG_Bool(REGB2)) {
 986       } else {
 987         REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
 988         if (UNTAG_Bool(REGB3)) {
 989           REGB3 = TAG_Bool(false);
 990           REGB2 = REGB3;
 991         } else {
 992           REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
 993           REGB2 = REGB3;
 994         }
 995       }
 996       if (UNTAG_Bool(REGB2)) {
 997         REGB2 = TAG_Bool(true);
 998       } else {
 999         REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1000         if (UNTAG_Bool(REGB3)) {
1001           nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 243);
1002         }
1003         REGB3 = CALL_metamodel___static_type___MMType_____l(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[6]);
1004         REGB2 = REGB3;
1005       }
1006       if (UNTAG_Bool(REGB2)) {
1007         /* syntax/flow.nit:244 */
1008         fra.me.REG[2] = fra.me.REG[6];
1009       }
1010       label2: while(0);
1011       /* ../lib/standard/collection/array.nit:274 */
1012       REGB2 = TAG_Int(1);
1013       /* ../lib/standard/kernel.nit:235 */
1014       REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
1015       /* ../lib/standard/collection/array.nit:274 */
1016       REGB1 = REGB2;
1017     } else {
1018       /* ../lib/standard/collection/array.nit:272 */
1019       goto label3;
1020     }
1021   }
1022   label3: while(0);
1023   /* syntax/flow.nit:247 */
1024   REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
1025   if (UNTAG_Bool(REGB1)) {
1026   } else {
1027     REGB2 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
1028     if (UNTAG_Bool(REGB2)) {
1029       REGB2 = TAG_Bool(false);
1030       REGB1 = REGB2;
1031     } else {
1032       REGB2 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[3])(fra.me.REG[3], NIT_NULL);
1033       REGB1 = REGB2;
1034     }
1035   }
1036   REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
1037   if (UNTAG_Bool(REGB1)) {
1038     /* syntax/flow.nit:248 */
1039     fra.me.REG[7] = fra.me.REG[3];
1040     goto label1;
1041   }
1042   /* syntax/flow.nit:250 */
1043   if (UNTAG_Bool(REGB0)) {
1044     /* syntax/flow.nit:251 */
1045     REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1046     if (UNTAG_Bool(REGB0)) {
1047     } else {
1048       REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1049       if (UNTAG_Bool(REGB1)) {
1050         REGB1 = TAG_Bool(false);
1051         REGB0 = REGB1;
1052       } else {
1053         REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
1054         REGB0 = REGB1;
1055       }
1056     }
1057     if (UNTAG_Bool(REGB0)) {
1058       /* syntax/flow.nit:252 */
1059       REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0])!=NIT_NULL);
1060       if (UNTAG_Bool(REGB0)) {
1061       } else {
1062         nit_abort("Uninitialized attribute %s", "_visitor", LOCATE_syntax___flow, 252);
1063       }
1064       fra.me.REG[3] = ATTR_syntax___flow___FlowContext____visitor(fra.me.REG[0]);
1065       fra.me.REG[3] = CALL_syntax___syntax_base___AbsSyntaxVisitor___type_none(fra.me.REG[3])(fra.me.REG[3]);
1066       fra.me.REG[7] = fra.me.REG[3];
1067       goto label1;
1068     } else {
1069       /* syntax/flow.nit:254 */
1070       REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1071       if (UNTAG_Bool(REGB0)) {
1072         nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 254);
1073       }
1074       fra.me.REG[3] = CALL_metamodel___static_type___MMType___as_nullable(fra.me.REG[2])(fra.me.REG[2]);
1075       fra.me.REG[2] = fra.me.REG[3];
1076     }
1077   }
1078   /* syntax/flow.nit:257 */
1079   REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1080   if (UNTAG_Bool(REGB0)) {
1081   } else {
1082     REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
1083     if (UNTAG_Bool(REGB1)) {
1084       REGB1 = TAG_Bool(false);
1085       REGB0 = REGB1;
1086     } else {
1087       REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
1088       REGB0 = REGB1;
1089     }
1090   }
1091   if (UNTAG_Bool(REGB0)) {
1092     /* syntax/flow.nit:258 */
1093     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0])!=NIT_NULL);
1094     if (UNTAG_Bool(REGB0)) {
1095     } else {
1096       nit_abort("Uninitialized attribute %s", "_base", LOCATE_syntax___flow, 258);
1097     }
1098     fra.me.REG[3] = ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0]);
1099     fra.me.REG[3] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[1]);
1100     fra.me.REG[7] = fra.me.REG[3];
1101     goto label1;
1102   } else {
1103     /* syntax/flow.nit:260 */
1104     REGB0 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
1105     if (UNTAG_Bool(REGB0)) {
1106     } else {
1107       nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 260);
1108     }
1109     fra.me.REG[3] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
1110     /* ../lib/standard/collection/array.nit:269 */
1111     REGB0 = TAG_Int(0);
1112     /* ../lib/standard/collection/array.nit:270 */
1113     REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
1114     if (UNTAG_Bool(REGB1)) {
1115     } else {
1116       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
1117     }
1118     REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
1119     /* ../lib/standard/collection/array.nit:271 */
1120     fra.me.REG[5] = ATTR_standard___collection___array___Array____items(fra.me.REG[3]);
1121     /* ../lib/standard/collection/array.nit:272 */
1122     while(1) {
1123       /* ../lib/standard/collection/array.nit:24 */
1124       REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
1125       if (UNTAG_Bool(REGB1)) {
1126       } else {
1127         nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
1128       }
1129       REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
1130       REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
1131       if (UNTAG_Bool(REGB2)) {
1132       } else {
1133         nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
1134       }
1135       /* ../lib/standard/kernel.nit:232 */
1136       REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
1137       /* ../lib/standard/collection/array.nit:272 */
1138       if (UNTAG_Bool(REGB1)) {
1139         /* ../lib/standard/collection/array.nit:273 */
1140         REGB1 = TAG_Bool(fra.me.REG[5]==NIT_NULL);
1141         if (UNTAG_Bool(REGB1)) {
1142           nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
1143         }
1144         /* ../lib/standard/collection/array.nit:718 */
1145         fra.me.REG[4] = ((Nit_NativeArray)fra.me.REG[5])->val[UNTAG_Int(REGB0)];
1146         /* syntax/flow.nit:261 */
1147         fra.me.REG[4] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
1148         /* syntax/flow.nit:262 */
1149         REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
1150         if (UNTAG_Bool(REGB1)) {
1151           nit_abort("Reciever is null", NULL, LOCATE_syntax___flow, 262);
1152         }
1153         REGB1 = CALL_metamodel___static_type___MMType_____l(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[2]);
1154         REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
1155         if (UNTAG_Bool(REGB1)) {
1156           /* syntax/flow.nit:263 */
1157           REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0])!=NIT_NULL);
1158           if (UNTAG_Bool(REGB1)) {
1159           } else {
1160             nit_abort("Uninitialized attribute %s", "_base", LOCATE_syntax___flow, 263);
1161           }
1162           fra.me.REG[4] = ATTR_syntax___flow___MergeFlowContext____base(fra.me.REG[0]);
1163           fra.me.REG[4] = CALL_syntax___flow___FlowContext___stype(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
1164           fra.me.REG[7] = fra.me.REG[4];
1165           goto label1;
1166         }
1167         /* ../lib/standard/collection/array.nit:274 */
1168         REGB1 = TAG_Int(1);
1169         /* ../lib/standard/kernel.nit:235 */
1170         REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
1171         /* ../lib/standard/collection/array.nit:274 */
1172         REGB0 = REGB1;
1173       } else {
1174         /* ../lib/standard/collection/array.nit:272 */
1175         goto label4;
1176       }
1177     }
1178     label4: while(0);
1179   }
1180   /* syntax/flow.nit:267 */
1181   fra.me.REG[7] = fra.me.REG[2];
1182   goto label1;
1183   label1: while(0);
1184   stack_frame_head = fra.me.prev;
1185   return fra.me.REG[7];
1186 }
1187 val_t syntax___flow___MergeFlowContext___is_set(val_t p0, val_t p1){
1188   struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
1189   val_t REGB0;
1190   val_t REGB1;
1191   val_t REGB2;
1192   val_t REGB3;
1193   val_t tmp;
1194   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
1195   fra.me.file = LOCATE_syntax___flow;
1196   fra.me.line = 270;
1197   fra.me.meth = LOCATE_syntax___flow___MergeFlowContext___is_set;
1198   fra.me.has_broke = 0;
1199   fra.me.REG_size = 5;
1200   fra.me.nitni_local_ref_head = NULL;
1201   fra.me.REG[0] = NIT_NULL;
1202   fra.me.REG[1] = NIT_NULL;
1203   fra.me.REG[2] = NIT_NULL;
1204   fra.me.REG[3] = NIT_NULL;
1205   fra.me.REG[4] = NIT_NULL;
1206   fra.me.REG[0] = p0;
1207   fra.me.REG[1] = p1;
1208   /* syntax/flow.nit:272 */
1209   REGB0 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
1210   if (UNTAG_Bool(REGB0)) {
1211   } else {
1212     nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 272);
1213   }
1214   fra.me.REG[2] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
1215   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
1216   if (UNTAG_Bool(REGB0)) {
1217     /* syntax/flow.nit:273 */
1218     REGB0 = TAG_Bool(true);
1219     goto label1;
1220   } else {
1221     /* syntax/flow.nit:275 */
1222     REGB1 = TAG_Bool(ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0])!=NIT_NULL);
1223     if (UNTAG_Bool(REGB1)) {
1224     } else {
1225       nit_abort("Uninitialized attribute %s", "_alts", LOCATE_syntax___flow, 275);
1226     }
1227     fra.me.REG[2] = ATTR_syntax___flow___MergeFlowContext____alts(fra.me.REG[0]);
1228     /* ../lib/standard/collection/array.nit:269 */
1229     REGB1 = TAG_Int(0);
1230     /* ../lib/standard/collection/array.nit:270 */
1231     REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
1232     if (UNTAG_Bool(REGB2)) {
1233     } else {
1234       nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 270);
1235     }
1236     REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
1237     /* ../lib/standard/collection/array.nit:271 */
1238     fra.me.REG[3] = ATTR_standard___collection___array___Array____items(fra.me.REG[2]);
1239     /* ../lib/standard/collection/array.nit:272 */
1240     while(1) {
1241       /* ../lib/standard/collection/array.nit:24 */
1242       REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
1243       if (UNTAG_Bool(REGB2)) {
1244       } else {
1245         nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
1246       }
1247       REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
1248       REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
1249       if (UNTAG_Bool(REGB3)) {
1250       } else {
1251         nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
1252       }
1253       /* ../lib/standard/kernel.nit:232 */
1254       REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
1255       /* ../lib/standard/collection/array.nit:272 */
1256       if (UNTAG_Bool(REGB2)) {
1257         /* ../lib/standard/collection/array.nit:273 */
1258         REGB2 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
1259         if (UNTAG_Bool(REGB2)) {
1260           nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 273);
1261         }
1262         /* ../lib/standard/collection/array.nit:718 */
1263         fra.me.REG[4] = ((Nit_NativeArray)fra.me.REG[3])->val[UNTAG_Int(REGB1)];
1264         /* syntax/flow.nit:276 */
1265         REGB2 = CALL_syntax___flow___FlowContext___is_set(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
1266         REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
1267         if (UNTAG_Bool(REGB2)) {
1268           /* syntax/flow.nit:277 */
1269           REGB2 = TAG_Bool(false);
1270           REGB0 = REGB2;
1271           goto label1;
1272         }
1273         /* ../lib/standard/collection/array.nit:274 */
1274         REGB2 = TAG_Int(1);
1275         /* ../lib/standard/kernel.nit:235 */
1276         REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
1277         /* ../lib/standard/collection/array.nit:274 */
1278         REGB1 = REGB2;
1279       } else {
1280         /* ../lib/standard/collection/array.nit:272 */
1281         goto label2;
1282       }
1283     }
1284     label2: while(0);
1285     /* syntax/flow.nit:280 */
1286     REGB1 = TAG_Bool(ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0])!=NIT_NULL);
1287     if (UNTAG_Bool(REGB1)) {
1288     } else {
1289       nit_abort("Uninitialized attribute %s", "_set_variables", LOCATE_syntax___flow, 280);
1290     }
1291     fra.me.REG[0] = ATTR_syntax___flow___FlowContext____set_variables(fra.me.REG[0]);
1292     CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
1293     /* syntax/flow.nit:281 */
1294     REGB1 = TAG_Bool(true);
1295     REGB0 = REGB1;
1296     goto label1;
1297   }
1298   label1: while(0);
1299   stack_frame_head = fra.me.prev;
1300   return REGB0;
1301 }
1302 val_t syntax___flow___Variable___must_be_set(val_t p0){
1303   struct {struct stack_frame_t me;} fra;
1304   val_t REGB0;
1305   val_t tmp;
1306   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
1307   fra.me.file = LOCATE_syntax___flow;
1308   fra.me.line = 288;
1309   fra.me.meth = LOCATE_syntax___flow___Variable___must_be_set;
1310   fra.me.has_broke = 0;
1311   fra.me.REG_size = 1;
1312   fra.me.nitni_local_ref_head = NULL;
1313   fra.me.REG[0] = NIT_NULL;
1314   fra.me.REG[0] = p0;
1315   /* syntax/flow.nit:289 */
1316   REGB0 = TAG_Bool(false);
1317   goto label1;
1318   label1: while(0);
1319   stack_frame_head = fra.me.prev;
1320   return REGB0;
1321 }
1322 val_t syntax___flow___VarVariable___must_be_set(val_t p0){
1323   struct {struct stack_frame_t me;} fra;
1324   val_t REGB0;
1325   val_t tmp;
1326   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
1327   fra.me.file = LOCATE_syntax___flow;
1328   fra.me.line = 293;
1329   fra.me.meth = LOCATE_syntax___flow___VarVariable___must_be_set;
1330   fra.me.has_broke = 0;
1331   fra.me.REG_size = 1;
1332   fra.me.nitni_local_ref_head = NULL;
1333   fra.me.REG[0] = NIT_NULL;
1334   fra.me.REG[0] = p0;
1335   /* syntax/flow.nit:293 */
1336   REGB0 = TAG_Bool(true);
1337   goto label1;
1338   label1: while(0);
1339   stack_frame_head = fra.me.prev;
1340   return REGB0;
1341 }