X-Git-Url: http://nitlanguage.org

diff --git a/c_src/array._sep.c b/c_src/array._sep.c
index 88ecd47..4508ab7 100644
--- a/c_src/array._sep.c
+++ b/c_src/array._sep.c
@@ -1,1686 +1,3774 @@
 /* This C file is generated by NIT to compile module array. */
 #include "array._sep.h"
-void array___AbstractArray___enlarge(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 23, LOCATE_array___AbstractArray___enlarge};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  fprintf(stderr, "Deferred method %s called");
-  fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
-  nit_exit(1);
-  tracehead = trace.prev;
+val_t array___AbstractArrayRead_____eqeq(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 128;
+  fra.me.meth = LOCATE_array___AbstractArrayRead_____eqeq;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 4;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[3] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool((fra.me.REG[1]!=NIT_NULL) && VAL_ISA(fra.me.REG[1], COLOR_AbstractArray, ID_AbstractArray)) /*cast AbstractArray[E]*/;
+  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
+  /* ./../lib/standard//collection//array.nit:131 */
+  if (UNTAG_Bool(REGB0)) {
+    REGB0 = TAG_Bool(true);
+  } else {
+    REGB1 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
+    REGB0 = REGB1;
+  }
+  if (UNTAG_Bool(REGB0)) {
+    REGB0 = TAG_Bool(false);
+    goto label1;
+  }
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB2 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:133 */
+  if (UNTAG_Bool(REGB2)) {
+    fprintf(stderr, "Reciever is null");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 133);
+    nit_exit(1);
+  }
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  REGB3 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB1));
+  /* ./../lib/standard//collection//array.nit:133 */
+  if (UNTAG_Bool(REGB3)) {
+  } else {
+    REGB2 = TAG_Bool((REGB2)==(REGB1));
+    REGB3 = REGB2;
+  /* ./../lib/standard//collection//array.nit:133 */
+  }
+  REGB3 = TAG_Bool(!UNTAG_Bool(REGB3));
+  if (UNTAG_Bool(REGB3)) {
+    REGB3 = TAG_Bool(false);
+    REGB0 = REGB3;
+    goto label1;
+  }
+  REGB3 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:135 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:135 */
+    if (UNTAG_Bool(REGB2)) {
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB3);
+      REGB2 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:136 */
+      if (UNTAG_Bool(REGB2)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 136);
+        nit_exit(1);
+      }
+      fra.me.REG[3] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB3);
+      REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[3]));
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        REGB4 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB4)) {
+          REGB4 = TAG_Bool(false);
+          REGB2 = REGB4;
+        } else {
+          REGB4 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[3]);
+          REGB2 = REGB4;
+        }
+      }
+      REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(false);
+        REGB0 = REGB2;
+        goto label1;
+      }
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB2));
+      REGB3 = REGB2;
+    /* ./../lib/standard//collection//array.nit:137 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:135 */
+      goto label2;
+    }
+  }
+  label2: while(0);
+  REGB3 = TAG_Bool(true);
+  REGB0 = REGB3;
+  /* ./../lib/standard//collection//array.nit:139 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+void array___AbstractArrayRead___output(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 115;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___output;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Int(0);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:119 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:119 */
+    if (UNTAG_Bool(REGB2)) {
+      fra.me.REG[1] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      REGB2 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:121 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        REGB3 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(false);
+          REGB2 = REGB3;
+        } else {
+          REGB3 = CALL_kernel___Object_____eqeq(fra.me.REG[1])(fra.me.REG[1], NIT_NULL);
+          REGB2 = REGB3;
+        }
+      }
+      REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+          fprintf(stderr, "Reciever is null");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 121);
+          nit_exit(1);
+        }
+        CALL_kernel___Object___output(fra.me.REG[1])(fra.me.REG[1]);
+      }
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
+      REGB0 = REGB2;
+    /* ./../lib/standard//collection//array.nit:122 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:119 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___AbstractArray___length(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 25, LOCATE_array___AbstractArray___length};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  tracehead = trace.prev;
-  return ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-}
-val_t array___AbstractArray___is_empty(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 28, LOCATE_array___AbstractArray___is_empty};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-  variable0 = TAG_Bool((variable0)==( TAG_Int(0)));
-  goto return_label0;
-  return_label0: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___AbstractArray___push(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 30, LOCATE_array___AbstractArray___push};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  ((array___AbstractArray___add_t)CALL( self,COLOR_abstract_collection___SimpleCollection___add))( self,  variable0 /*item*/) /*AbstractArray::add*/;
-  tracehead = trace.prev;
+val_t array___AbstractArrayRead___iterator(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 126;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___iterator;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[0] = NEW_ArrayIterator_array___ArrayIterator___init(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:126 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___AbstractArrayRead___is_empty(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 26;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___is_empty;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:26 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 26);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB1 = TAG_Int(0);
+  REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    REGB1 = TAG_Bool((REGB0)==(REGB1));
+    REGB2 = REGB1;
+  /* ./../lib/standard//collection//array.nit:26 */
+  }
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB2;
+}
+val_t array___AbstractArrayRead___length(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 23;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___length;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___AbstractArrayRead___has(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 28;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___has;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Int(0);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:32 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:32 */
+    if (UNTAG_Bool(REGB2)) {
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      /* ./../lib/standard//collection//array.nit:33 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(false);
+          REGB2 = REGB3;
+        } else {
+          REGB3 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB2 = REGB3;
+        }
+      }
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(true);
+        goto label1;
+      }
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
+      REGB0 = REGB3;
+    /* ./../lib/standard//collection//array.nit:34 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:32 */
+      goto label2;
+    }
+  }
+  label2: while(0);
+  REGB0 = TAG_Bool(false);
+  REGB2 = REGB0;
+  /* ./../lib/standard//collection//array.nit:36 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB2;
+}
+val_t array___AbstractArrayRead___has_only(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 39;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___has_only;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Int(0);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:43 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:43 */
+    if (UNTAG_Bool(REGB2)) {
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      /* ./../lib/standard//collection//array.nit:44 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(false);
+          REGB2 = REGB3;
+        } else {
+          REGB3 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB2 = REGB3;
+        }
+      }
+      REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(false);
+        goto label1;
+      }
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
+      REGB0 = REGB3;
+    /* ./../lib/standard//collection//array.nit:45 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:43 */
+      goto label2;
+    }
+  }
+  label2: while(0);
+  REGB0 = TAG_Bool(true);
+  REGB2 = REGB0;
+  /* ./../lib/standard//collection//array.nit:47 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB2;
+}
+val_t array___AbstractArrayRead___count(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 52;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___count;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Int(0);
+  REGB1 = TAG_Int(0);
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:57 */
+  while(1) {
+    REGB3 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:57 */
+    if (UNTAG_Bool(REGB3)) {
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB1);
+      REGB3 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      /* ./../lib/standard//collection//array.nit:58 */
+      if (UNTAG_Bool(REGB3)) {
+      } else {
+        REGB4 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB4)) {
+          REGB4 = TAG_Bool(false);
+          REGB3 = REGB4;
+        } else {
+          REGB4 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB3 = REGB4;
+        }
+      }
+      if (UNTAG_Bool(REGB3)) {
+        REGB3 = TAG_Int(1);
+        REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
+        REGB0 = REGB3;
+      /* ./../lib/standard//collection//array.nit:58 */
+      }
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
+      REGB1 = REGB3;
+    /* ./../lib/standard//collection//array.nit:59 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:57 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  /* ./../lib/standard//collection//array.nit:61 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___AbstractArrayRead___has_key(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 50;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___has_key;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:50 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:23 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+      nit_exit(1);
+    }
+    REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:50 */
+  } else {
+    REGB0 = TAG_Bool(false);
+    REGB1 = REGB0;
+  }
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB1;
+}
+val_t array___AbstractArrayRead___index_of(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 64;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___index_of;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Int(0);
+  REGB0 = CALL_array___AbstractArrayRead___index_of_from(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+  /* ./../lib/standard//collection//array.nit:64 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___AbstractArrayRead___last_index_of(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 66;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___last_index_of;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+  REGB1 = CALL_array___AbstractArrayRead___last_index_of_from(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB1);
+  /* ./../lib/standard//collection//array.nit:66 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB1;
+}
+val_t array___AbstractArrayRead___index_of_from(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 68;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___index_of_from;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:72 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:72 */
+    if (UNTAG_Bool(REGB2)) {
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      /* ./../lib/standard//collection//array.nit:73 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(false);
+          REGB2 = REGB3;
+        } else {
+          REGB3 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB2 = REGB3;
+        }
+      }
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = REGB0;
+        /* ./../lib/standard//collection//array.nit:74 */
+        goto label1;
+      }
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
+      REGB0 = REGB3;
+    /* ./../lib/standard//collection//array.nit:76 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:72 */
+      goto label2;
+    }
+  }
+  label2: while(0);
+  REGB0 = TAG_Int(1);
+  REGB0 = TAG_Int(-UNTAG_Int(REGB0));
+  REGB2 = REGB0;
+  /* ./../lib/standard//collection//array.nit:78 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB2;
+}
+val_t array___AbstractArrayRead___last_index_of_from(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 81;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___last_index_of_from;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//collection//array.nit:84 */
+  while(1) {
+    REGB1 = TAG_Int(0);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:84 */
+    if (UNTAG_Bool(REGB1)) {
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      REGB1 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      /* ./../lib/standard//collection//array.nit:85 */
+      if (UNTAG_Bool(REGB1)) {
+      } else {
+        REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+          REGB2 = TAG_Bool(false);
+          REGB1 = REGB2;
+        } else {
+          REGB2 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB1 = REGB2;
+        }
+      }
+      if (UNTAG_Bool(REGB1)) {
+        REGB1 = REGB0;
+        /* ./../lib/standard//collection//array.nit:86 */
+        goto label1;
+      } else {
+        REGB2 = TAG_Int(1);
+        REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+        REGB0 = REGB2;
+      /* ./../lib/standard//collection//array.nit:88 */
+      }
+    } else {
+      /* ./../lib/standard//collection//array.nit:84 */
+      goto label2;
+    }
+  }
+  label2: while(0);
+  REGB0 = TAG_Int(1);
+  REGB0 = TAG_Int(-UNTAG_Int(REGB0));
+  REGB1 = REGB0;
+  /* ./../lib/standard//collection//array.nit:91 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB1;
+}
+val_t array___AbstractArrayRead___reversed(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 94;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___reversed;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:96 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 96);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  fra.me.REG[1] = NEW_Array_array___Array___with_capacity(REGB0);
+  /* ./../lib/standard//collection//array.nit:98 */
+  while(1) {
+    REGB1 = TAG_Int(0);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:98 */
+    if (UNTAG_Bool(REGB1)) {
+      REGB1 = TAG_Int(1);
+      REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+      REGB0 = REGB1;
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      /* ./../lib/standard//collection//array.nit:100 */
+      array___Array___add(fra.me.REG[1], fra.me.REG[2]);
+    } else {
+      /* ./../lib/standard//collection//array.nit:98 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  /* ./../lib/standard//collection//array.nit:102 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
+}
+void array___AbstractArrayRead___copy_to(val_t p0, val_t p1, val_t p2, val_t p3, val_t p4){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 105;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___copy_to;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = p2;
+  fra.me.REG[1] = p3;
+  REGB2 = p4;
+  /* ./../lib/standard//collection//array.nit:109 */
+  while(1) {
+    REGB3 = TAG_Int(0);
+    REGB3 = TAG_Bool(UNTAG_Int(REGB1)>UNTAG_Int(REGB3));
+    /* ./../lib/standard//collection//array.nit:109 */
+    if (UNTAG_Bool(REGB3)) {
+      REGB3 = TAG_Int(1);
+      REGB3 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB3));
+      REGB1 = REGB3;
+      REGB3 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB1));
+      REGB4 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB4);
+      /* ./../lib/standard//collection//array.nit:111 */
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[1])(fra.me.REG[1], REGB3, fra.me.REG[2]);
+    } else {
+      /* ./../lib/standard//collection//array.nit:109 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___AbstractArray___pop(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 32, LOCATE_array___AbstractArray___pop};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ((array___AbstractArray___is_empty_t)CALL( self,COLOR_abstract_collection___Collection___is_empty))( self) /*AbstractArray::is_empty*/;
-  if (!UNTAG_Bool( TAG_Bool(!UNTAG_Bool(variable0)))) { fprintf(stderr, "Assert%s failed", " 'not_empty' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___AbstractArray___pop, LOCATE_array, 34); nit_exit(1);}
-  variable1 = ((abstract_collection___IndexedCollection___last_t)CALL( self,COLOR_abstract_collection___IndexedCollection___last))( self) /*IndexedCollection::last*/;
-  variable0 = variable1;
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ = TAG_Int(UNTAG_Int(ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/)-UNTAG_Int( TAG_Int(1)));
-  variable0 =  variable0 /*r*/;
-  goto return_label2;
-  return_label2: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___AbstractArray___shift(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 40, LOCATE_array___AbstractArray___shift};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ((array___AbstractArray___is_empty_t)CALL( self,COLOR_abstract_collection___Collection___is_empty))( self) /*AbstractArray::is_empty*/;
-  if (!UNTAG_Bool( TAG_Bool(!UNTAG_Bool(variable0)))) { fprintf(stderr, "Assert%s failed", " 'not_empty' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___AbstractArray___shift, LOCATE_array, 42); nit_exit(1);}
-  variable1 = ((abstract_collection___IndexedCollection___first_t)CALL( self,COLOR_abstract_collection___Collection___first))( self) /*IndexedCollection::first*/;
-  variable0 = variable1;
-  variable1 =  TAG_Int(1);
-  variable3 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable2 = variable3;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable1 /*i*/)<UNTAG_Int( variable2 /*l*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = TAG_Int(UNTAG_Int( variable1 /*i*/)-UNTAG_Int( TAG_Int(1)));
-    variable4 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable1 /*i*/) /*Map::[]*/;
-    ((abstract_collection___Map_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self, variable3, variable4) /*Map::[]=*/;
-    variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_4: while(0);
-  }
-  break_4: while(0);
-  variable3 = TAG_Int(UNTAG_Int( variable2 /*l*/)-UNTAG_Int( TAG_Int(1)));
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ = variable3;
-  variable0 =  variable0 /*r*/;
-  goto return_label3;
-  return_label3: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___AbstractArray___unshift(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 54, LOCATE_array___AbstractArray___unshift};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable2 = TAG_Int(UNTAG_Int(variable2)-UNTAG_Int( TAG_Int(1)));
-  variable1 = variable2;
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    variable2 = TAG_Int(UNTAG_Int( variable1 /*i*/)+UNTAG_Int( TAG_Int(1)));
-    variable3 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable1 /*i*/) /*Map::[]*/;
-    ((abstract_collection___Map_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self, variable2, variable3) /*Map::[]=*/;
-    variable1 = TAG_Int(UNTAG_Int(variable1)-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_6: while(0);
-  }
-  break_6: while(0);
-  ((abstract_collection___Map_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self,  TAG_Int(0),  variable0 /*item*/) /*Map::[]=*/;
-  tracehead = trace.prev;
+void array___AbstractArrayRead___init(val_t p0, int* init_table){
+  int itpos0 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_AbstractArrayRead].i;
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  if (init_table[itpos0]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 0;
+  fra.me.meth = LOCATE_array___AbstractArrayRead___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos0] = 1;
   return;
 }
-void array___AbstractArray___insert(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 64, LOCATE_array___AbstractArray___insert};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1)));
-  ((array___AbstractArray___enlarge_t)CALL( self,COLOR_array___AbstractArray___enlarge))( self, variable2) /*AbstractArray::enlarge*/;
-  variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable2 = TAG_Int(UNTAG_Int(variable2)-UNTAG_Int( variable1 /*pos*/));
-  variable3 = TAG_Int(UNTAG_Int( variable1 /*pos*/)+UNTAG_Int( TAG_Int(1)));
-  ((array___AbstractArray___copy_to_t)CALL( self,COLOR_array___AbstractArray___copy_to))( self,  variable1 /*pos*/, variable2,  self, variable3) /*AbstractArray::copy_to*/;
-  ((abstract_collection___Map_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self,  variable1 /*pos*/,  variable0 /*item*/) /*Map::[]=*/;
-  tracehead = trace.prev;
+void array___AbstractArray___clear(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 192;
+  fra.me.meth = LOCATE_array___AbstractArray___clear;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:192 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___AbstractArray___add(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 71, LOCATE_array___AbstractArray___add};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  ((abstract_collection___Map_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self, variable1,  variable0 /*item*/) /*Map::[]=*/;
-  tracehead = trace.prev;
+void array___AbstractArray___remove(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 194;
+  fra.me.meth = LOCATE_array___AbstractArray___remove;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = CALL_abstract_collection___SequenceRead___index_of(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  /* ./../lib/standard//collection//array.nit:194 */
+  CALL_abstract_collection___Map___remove_at(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___AbstractArray___clear(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 73, LOCATE_array___AbstractArray___clear};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ =  TAG_Int(0);
-  tracehead = trace.prev;
+void array___AbstractArray___remove_all(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 196;
+  fra.me.meth = LOCATE_array___AbstractArray___remove_all;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = CALL_abstract_collection___SequenceRead___index_of(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  /* ./../lib/standard//collection//array.nit:199 */
+  while(1) {
+    REGB1 = TAG_Int(0);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:199 */
+    if (UNTAG_Bool(REGB1)) {
+      /* ./../lib/standard//collection//array.nit:200 */
+      CALL_abstract_collection___Map___remove_at(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      REGB1 = CALL_array___AbstractArrayRead___index_of_from(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
+      REGB0 = REGB1;
+    /* ./../lib/standard//collection//array.nit:201 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:199 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___AbstractArray___has(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 75, LOCATE_array___AbstractArray___has};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  TAG_Int(0);
-  variable3 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable2 = variable3;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable1 /*i*/)<UNTAG_Int( variable2 /*l*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable1 /*i*/) /*Map::[]*/;
-    variable3 = TAG_Bool((variable3 ==  variable0 /*item*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable1 =  TAG_Bool(true);
-      goto return_label10;
-    }
-    variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_11: while(0);
-  }
-  break_11: while(0);
-  variable1 =  TAG_Bool(false);
-  goto return_label10;
-  return_label10: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___AbstractArray___has_only(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 86, LOCATE_array___AbstractArray___has_only};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  TAG_Int(0);
-  variable3 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable2 = variable3;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable1 /*i*/)<UNTAG_Int( variable2 /*l*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable1 /*i*/) /*Map::[]*/;
-    variable3 = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable3 ==  variable0 /*item*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*item*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable1 =  TAG_Bool(false);
-      goto return_label12;
-    }
-    variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_13: while(0);
-  }
-  break_13: while(0);
-  variable1 =  TAG_Bool(true);
-  goto return_label12;
-  return_label12: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___AbstractArray___has_key(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 97, LOCATE_array___AbstractArray___has_key};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = TAG_Bool(UNTAG_Int( variable0 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-  variable2 = variable1;
-  if (UNTAG_Bool(variable2)) { /* and */
-    variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-    variable2 = TAG_Bool(UNTAG_Int( variable0 /*index*/)<UNTAG_Int(variable2));
-  }
-  variable1 = variable2;
-  goto return_label14;
-  return_label14: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___AbstractArray___count(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 99, LOCATE_array___AbstractArray___count};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  TAG_Int(0);
-  variable2 =  TAG_Int(0);
-  variable4 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable3 = variable4;
-  while (true) { /*while*/
-    variable4 = TAG_Bool(UNTAG_Int( variable2 /*i*/)<UNTAG_Int( variable3 /*l*/));
-    if (!UNTAG_Bool(variable4)) break; /* while*/
-    variable4 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable2 /*i*/) /*Map::[]*/;
-    variable4 = TAG_Bool((variable4 ==  variable0 /*item*/) || ((variable4 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable4,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable4, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable4,COLOR_kernel___Object_____eqeq))(variable4,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable4)) { /*if*/
-      variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*res*/;
-    }
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_16: while(0);
-  }
-  break_16: while(0);
-  variable1 =  variable1 /*res*/;
-  goto return_label15;
-  return_label15: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___AbstractArray___index_of(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 111, LOCATE_array___AbstractArray___index_of};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ((array___AbstractArray___index_of_from_t)CALL( self,COLOR_array___AbstractArray___index_of_from))( self,  variable0 /*item*/,  TAG_Int(0)) /*AbstractArray::index_of_from*/;
-  goto return_label17;
-  return_label17: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___AbstractArray___last_index_of(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 113, LOCATE_array___AbstractArray___last_index_of};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable1 = TAG_Int(UNTAG_Int(variable1)-UNTAG_Int( TAG_Int(1)));
-  variable1 = ((array___AbstractArray___last_index_of_from_t)CALL( self,COLOR_array___AbstractArray___last_index_of_from))( self,  variable0 /*item*/, variable1) /*AbstractArray::last_index_of_from*/;
-  goto return_label18;
-  return_label18: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___AbstractArray___index_of_from(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 115, LOCATE_array___AbstractArray___index_of_from};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 =  variable1 /*pos*/;
-  variable4 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable3 = variable4;
-  while (true) { /*while*/
-    variable4 = TAG_Bool(UNTAG_Int( variable2 /*i*/)<UNTAG_Int( variable3 /*len*/));
-    if (!UNTAG_Bool(variable4)) break; /* while*/
-    variable4 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable2 /*i*/) /*Map::[]*/;
-    variable4 = TAG_Bool((variable4 ==  variable0 /*item*/) || ((variable4 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable4,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable4, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable4,COLOR_kernel___Object_____eqeq))(variable4,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable4)) { /*if*/
-      variable2 =  variable2 /*i*/;
-      goto return_label19;
-    }
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_20: while(0);
-  }
-  break_20: while(0);
-  variable4 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable2 = variable4;
-  goto return_label19;
-  return_label19: while(false);
-  tracehead = trace.prev;
-  return variable2;
-}
-val_t array___AbstractArray___last_index_of_from(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 128, LOCATE_array___AbstractArray___last_index_of_from};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 =  variable1 /*pos*/;
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable2 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable2 /*i*/) /*Map::[]*/;
-    variable3 = TAG_Bool((variable3 ==  variable0 /*item*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable2 =  variable2 /*i*/;
-      goto return_label21;
-    } else { /*if*/
-      variable2 = TAG_Int(UNTAG_Int(variable2)-UNTAG_Int( TAG_Int(1))) /*i*/;
+void array___AbstractArray___remove_at(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 205;
+  fra.me.meth = LOCATE_array___AbstractArray___remove_at;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB2 = TAG_Int(0);
+  REGB2 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB2));
+  /* ./../lib/standard//collection//array.nit:208 */
+  if (UNTAG_Bool(REGB2)) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:208 */
+  } else {
+    REGB3 = TAG_Bool(false);
+    REGB2 = REGB3;
+  }
+  if (UNTAG_Bool(REGB2)) {
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:210 */
+    while(1) {
+      REGB0 = TAG_Bool(UNTAG_Int(REGB2)<UNTAG_Int(REGB1));
+      /* ./../lib/standard//collection//array.nit:210 */
+      if (UNTAG_Bool(REGB0)) {
+        REGB0 = TAG_Int(1);
+        REGB0 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB0));
+        fra.me.REG[1] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB2);
+        /* ./../lib/standard//collection//array.nit:211 */
+        CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB0, fra.me.REG[1]);
+        REGB0 = TAG_Int(1);
+        REGB0 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
+        REGB2 = REGB0;
+      /* ./../lib/standard//collection//array.nit:212 */
+      } else {
+        /* ./../lib/standard//collection//array.nit:210 */
+        goto label1;
+      }
     }
-    continue_22: while(0);
-  }
-  break_22: while(0);
-  variable3 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable2 = variable3;
-  goto return_label21;
-  return_label21: while(false);
-  tracehead = trace.prev;
-  return variable2;
-}
-val_t array___AbstractArray___reversed(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 141, LOCATE_array___AbstractArray___reversed};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable1 = ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-  variable0 = variable1;
-  variable2 = NEW_Array_array___Array___with_capacity( variable0 /*cmp*/); /*new Array[E]*/
-  variable1 = variable2;
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable0 /*cmp*/)>UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    variable0 = TAG_Int(UNTAG_Int(variable0)-UNTAG_Int( TAG_Int(1))) /*cmp*/;
-    variable2 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable0 /*cmp*/) /*Map::[]*/;
-    ((array___AbstractArray___add_t)CALL( variable1 /*result*/,COLOR_abstract_collection___SimpleCollection___add))( variable1 /*result*/, variable2) /*AbstractArray::add*/;
-    continue_24: while(0);
-  }
-  break_24: while(0);
-  variable0 =  variable1 /*result*/;
-  goto return_label23;
-  return_label23: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___AbstractArray___remove(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 152, LOCATE_array___AbstractArray___remove};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ((array___AbstractArray___index_of_t)CALL( self,COLOR_abstract_collection___IndexedCollection___index_of))( self,  variable0 /*item*/) /*AbstractArray::index_of*/;
-  ((array___AbstractArray___remove_at_t)CALL( self,COLOR_abstract_collection___Map___remove_at))( self, variable1) /*AbstractArray::remove_at*/;
-  tracehead = trace.prev;
+    label1: while(0);
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:214 */
+    ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB2;
+  }
+  stack_frame_head = fra.me.prev;
+  return;
+}
+void array___AbstractArray___add(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 190;
+  fra.me.meth = LOCATE_array___AbstractArray___add;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:190 */
+  CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB0, fra.me.REG[1]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___AbstractArray___remove_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 154, LOCATE_array___AbstractArray___remove_all};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ((array___AbstractArray___index_of_t)CALL( self,COLOR_abstract_collection___IndexedCollection___index_of))( self,  variable0 /*item*/) /*AbstractArray::index_of*/;
-  variable1 = variable2;
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    ((array___AbstractArray___remove_at_t)CALL( self,COLOR_abstract_collection___Map___remove_at))( self,  variable1 /*i*/) /*AbstractArray::remove_at*/;
-    variable2 = ((array___AbstractArray___index_of_from_t)CALL( self,COLOR_array___AbstractArray___index_of_from))( self,  variable0 /*item*/,  variable1 /*i*/) /*AbstractArray::index_of_from*/;
-    variable1 = variable2 /*i=*/;
-    continue_27: while(0);
-  }
-  break_27: while(0);
-  tracehead = trace.prev;
+void array___AbstractArray___push(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 149;
+  fra.me.meth = LOCATE_array___AbstractArray___push;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//collection//array.nit:149 */
+  CALL_abstract_collection___SimpleCollection___add(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___AbstractArray___remove_at(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 163, LOCATE_array___AbstractArray___remove_at};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-      val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable1 = variable2;
-  variable2 = TAG_Bool(UNTAG_Int( variable0 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-  variable3 = variable2;
-  if (UNTAG_Bool(variable3)) { /* and */
-    variable3 = TAG_Bool(UNTAG_Int( variable0 /*i*/)<UNTAG_Int( variable1 /*l*/));
-  }
-  variable2 = variable3;
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable3 = TAG_Int(UNTAG_Int( variable0 /*i*/)+UNTAG_Int( TAG_Int(1)));
-    variable2 = variable3;
-    while (true) { /*while*/
-      variable3 = TAG_Bool(UNTAG_Int( variable2 /*j*/)<UNTAG_Int( variable1 /*l*/));
-      if (!UNTAG_Bool(variable3)) break; /* while*/
-      variable3 = TAG_Int(UNTAG_Int( variable2 /*j*/)-UNTAG_Int( TAG_Int(1)));
-      variable4 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable2 /*j*/) /*Map::[]*/;
-      ((abstract_collection___Map_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self, variable3, variable4) /*Map::[]=*/;
-      variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*j*/;
-      continue_29: while(0);
+val_t array___AbstractArray___pop(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 151;
+  fra.me.meth = LOCATE_array___AbstractArray___pop;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = CALL_abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
+  /* ./../lib/standard//collection//array.nit:153 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'not_empty'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 153);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = CALL_abstract_collection___SequenceRead___last(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:155 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB1;
+  /* ./../lib/standard//collection//array.nit:156 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
+}
+void array___AbstractArray___unshift(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 173;
+  fra.me.meth = LOCATE_array___AbstractArray___unshift;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:176 */
+  while(1) {
+    REGB0 = TAG_Int(0);
+    REGB0 = TAG_Bool(UNTAG_Int(REGB1)>UNTAG_Int(REGB0));
+    /* ./../lib/standard//collection//array.nit:176 */
+    if (UNTAG_Bool(REGB0)) {
+      REGB0 = TAG_Int(1);
+      REGB0 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB0));
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB1);
+      /* ./../lib/standard//collection//array.nit:177 */
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB0, fra.me.REG[2]);
+      REGB0 = TAG_Int(1);
+      REGB0 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+      REGB1 = REGB0;
+    /* ./../lib/standard//collection//array.nit:178 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:176 */
+      goto label1;
     }
-    break_29: while(0);
-    variable3 = TAG_Int(UNTAG_Int( variable1 /*l*/)-UNTAG_Int( TAG_Int(1)));
-    ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ = variable3;
   }
-  tracehead = trace.prev;
+  label1: while(0);
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:180 */
+  CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB1, fra.me.REG[1]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___AbstractArray___copy_to(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3) {
-  struct trace_t trace = {NULL, NULL, 176, LOCATE_array___AbstractArray___copy_to};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  val_t variable4;
-    val_t variable5;
-    val_t variable6;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 =  param2;
-  variable3 =  param3;
-  variable4 =  variable1 /*len*/;
-  while (true) { /*while*/
-    variable5 = TAG_Bool(UNTAG_Int( variable4 /*i*/)>UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable5)) break; /* while*/
-    variable4 = TAG_Int(UNTAG_Int(variable4)-UNTAG_Int( TAG_Int(1))) /*i*/;
-    variable5 = TAG_Int(UNTAG_Int( variable3 /*new_start*/)+UNTAG_Int( variable4 /*i*/));
-    variable6 = TAG_Int(UNTAG_Int( variable0 /*start*/)+UNTAG_Int( variable4 /*i*/));
-    variable6 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self, variable6) /*Map::[]*/;
-    ((abstract_collection___Map_____braeq_t)CALL( variable2 /*dest*/,COLOR_abstract_collection___Map_____braeq))( variable2 /*dest*/, variable5, variable6) /*Map::[]=*/;
-    continue_31: while(0);
-  }
-  break_31: while(0);
-  tracehead = trace.prev;
+val_t array___AbstractArray___shift(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 159;
+  fra.me.meth = LOCATE_array___AbstractArray___shift;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = CALL_abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
+  /* ./../lib/standard//collection//array.nit:161 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'not_empty'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 161);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = CALL_abstract_collection___Collection___first(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = TAG_Int(1);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:165 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:165 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
+      fra.me.REG[2] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
+      /* ./../lib/standard//collection//array.nit:166 */
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB2, fra.me.REG[2]);
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
+      REGB0 = REGB2;
+    /* ./../lib/standard//collection//array.nit:167 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:165 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  REGB0 = TAG_Int(1);
+  REGB0 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+  /* ./../lib/standard//collection//array.nit:169 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  /* ./../lib/standard//collection//array.nit:170 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
+}
+void array___AbstractArray___enlarge(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 147;
+  fra.me.meth = LOCATE_array___AbstractArray___enlarge;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  /* ./../lib/standard//collection//array.nit:147 */
+  fprintf(stderr, "Deferred method called");
+  fprintf(stderr, " (%s:%d)\n", LOCATE_array, 147);
+  nit_exit(1);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___AbstractArray___output(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 186, LOCATE_array___AbstractArray___output};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  TAG_Int(0);
-  variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable1 = variable2;
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable0 /*i*/)<UNTAG_Int( variable1 /*l*/));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    variable3 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable0 /*i*/) /*Map::[]*/;
-    variable2 = variable3;
-    variable3 = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable2 /*e*/ ==  NIT_NULL /*null*/) || (( variable2 /*e*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable2 /*e*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable2 /*e*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable2 /*e*/,COLOR_kernel___Object_____eqeq))( variable2 /*e*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      ((kernel___Object___output_t)CALL( variable2 /*e*/,COLOR_kernel___Object___output))( variable2 /*e*/) /*Object::output*/;
-    }
-    variable0 = TAG_Int(UNTAG_Int(variable0)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_33: while(0);
+void array___AbstractArray___insert(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 183;
+  fra.me.meth = LOCATE_array___AbstractArray___insert;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
   }
-  break_33: while(0);
-  tracehead = trace.prev;
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB2 = TAG_Int(1);
+  REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
+  /* ./../lib/standard//collection//array.nit:185 */
+  CALL_array___AbstractArray___enlarge(fra.me.REG[0])(fra.me.REG[0], REGB2);
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB2 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB0));
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:186 */
+  CALL_array___AbstractArrayRead___copy_to(fra.me.REG[0])(fra.me.REG[0], REGB0, REGB2, fra.me.REG[0], REGB1);
+  /* ./../lib/standard//collection//array.nit:187 */
+  CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB0, fra.me.REG[1]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___AbstractArray___iterator(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 197, LOCATE_array___AbstractArray___iterator};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = NEW_ArrayIterator_array___ArrayIterator___init( self); /*new ArrayIterator[E]*/
-  goto return_label34;
-  return_label34: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___AbstractArray_____eqeq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 199, LOCATE_array___AbstractArray_____eqeq};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = TAG_Bool(( variable0 /*o*/==NIT_NULL) || VAL_ISA( variable0 /*o*/, COLOR_AbstractArray, ID_AbstractArray)) /*cast AbstractArray[E]*/;
-  variable1 =  TAG_Bool(!UNTAG_Bool(variable1));
-  if (!UNTAG_Bool(variable1)) { /* or */
-    variable1 = TAG_Bool(IS_EQUAL_NN( variable0 /*o*/, NIT_NULL /*null*/));
-  }
-  if (UNTAG_Bool(variable1)) { /*if*/
-    variable1 =  TAG_Bool(false);
-    goto return_label35;
-  }
-  variable1 = TAG_Bool(( variable0 /*o*/==NIT_NULL) || VAL_ISA( variable0 /*o*/, COLOR_AbstractArray, ID_AbstractArray)) /*cast AbstractArray[E]*/;
-  if (!UNTAG_Bool(variable1)) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___AbstractArray_____eqeq, LOCATE_array, 203); nit_exit(1);}
-  variable2 = ((array___AbstractArray___length_t)CALL( self,COLOR_abstract_collection___Collection___length))( self) /*AbstractArray::length*/;
-  variable1 = variable2;
-  variable2 = ((array___AbstractArray___length_t)CALL( variable0 /*o*/,COLOR_abstract_collection___Collection___length))( variable0 /*o*/) /*AbstractArray::length*/;
-  variable2 = TAG_Bool((variable2)!=( variable1 /*l*/));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable1 =  TAG_Bool(false);
-    goto return_label35;
-  }
-  variable2 =  TAG_Int(0);
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable2 /*i*/)<UNTAG_Int( variable1 /*l*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ((abstract_collection___Map_____bra_t)CALL( self,COLOR_abstract_collection___Map_____bra))( self,  variable2 /*i*/) /*Map::[]*/;
-    variable4 = ((abstract_collection___Map_____bra_t)CALL( variable0 /*o*/,COLOR_abstract_collection___Map_____bra))( variable0 /*o*/,  variable2 /*i*/) /*Map::[]*/;
-    variable3 = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable3 == variable4) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3,variable4)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3, variable4) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable1 =  TAG_Bool(false);
-      goto return_label35;
+val_t array___Array_____bra(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 231;
+  fra.me.meth = LOCATE_array___Array_____bra;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:233 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+      nit_exit(1);
     }
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_36: while(0);
-  }
-  break_36: while(0);
-  variable1 =  TAG_Bool(true);
-  goto return_label35;
-  return_label35: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void array___AbstractArray___init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 0, LOCATE_array___AbstractArray___init};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  tracehead = trace.prev;
+    REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:233 */
+  } else {
+    REGB2 = TAG_Bool(false);
+    REGB1 = REGB2;
+  }
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'index'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___Array____items(fra.me.REG[0]);
+  REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:234 */
+  if (UNTAG_Bool(REGB1)) {
+    fprintf(stderr, "Reciever is null");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)];
+  /* ./../lib/standard//collection//array.nit:234 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+void array___Array_____braeq(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 237;
+  fra.me.meth = LOCATE_array___Array_____braeq;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  fra.me.REG[1] = p2;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:239 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 239);
+      nit_exit(1);
+    }
+    REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
+    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
+  /* ./../lib/standard//collection//array.nit:239 */
+  } else {
+    REGB1 = TAG_Bool(false);
+    REGB2 = REGB1;
+  }
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'index'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 239);
+    nit_exit(1);
+  }
+  REGB2 = TAG_Bool(ATTR_array___Array____capacity(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:240 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_capacity");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 240);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___Array____capacity(fra.me.REG[0]);
+  REGB2 = TAG_Bool(UNTAG_Int(REGB2)<=UNTAG_Int(REGB0));
+  /* ./../lib/standard//collection//array.nit:240 */
+  if (UNTAG_Bool(REGB2)) {
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:241 */
+    CALL_array___AbstractArray___enlarge(fra.me.REG[0])(fra.me.REG[0], REGB2);
+  }
+  REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:243 */
+  if (UNTAG_Bool(REGB2)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 243);
+    nit_exit(1);
+  }
+  REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB2 = TAG_Bool(UNTAG_Int(REGB2)<=UNTAG_Int(REGB0));
+  /* ./../lib/standard//collection//array.nit:243 */
+  if (UNTAG_Bool(REGB2)) {
+    REGB2 = TAG_Int(1);
+    REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:244 */
+    ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB2;
+  }
+  fra.me.REG[0] = ATTR_array___Array____items(fra.me.REG[0]);
+  REGB2 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:246 */
+  if (UNTAG_Bool(REGB2)) {
+    fprintf(stderr, "Reciever is null");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 246);
+    nit_exit(1);
+  }
+  /* ./../lib/standard//collection//array.nit:591 */
+  ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)]=fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___Array_____bra(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 227, LOCATE_array___Array_____bra};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = TAG_Bool(UNTAG_Int( variable0 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-  variable2 = variable1;
-  if (UNTAG_Bool(variable2)) { /* and */
-    variable2 = ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-    variable2 = TAG_Bool(UNTAG_Int( variable0 /*index*/)<UNTAG_Int(variable2));
-  }
-  variable1 = variable2;
-  if (!UNTAG_Bool(variable1)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-  variable1 = ATTR_array___Array____items( self) /*Array::_items*/;
-  variable1 = UNBOX_NativeArray(variable1)[UNTAG_Int( variable0 /*index*/)];
-  goto return_label37;
-  return_label37: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void array___Array_____braeq(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 233, LOCATE_array___Array_____braeq};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable2 = TAG_Bool(UNTAG_Int( variable0 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-  variable3 = variable2;
-  if (UNTAG_Bool(variable3)) { /* and */
-    variable3 = ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-    variable3 = TAG_Int(UNTAG_Int(variable3)+UNTAG_Int( TAG_Int(1)));
-    variable3 = TAG_Bool(UNTAG_Int( variable0 /*index*/)<UNTAG_Int(variable3));
-  }
-  variable2 = variable3;
-  if (!UNTAG_Bool(variable2)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____braeq, LOCATE_array, 235); nit_exit(1);}
-  variable2 = ATTR_array___Array____capacity( self) /*Array::_capacity*/;
-  variable2 = TAG_Bool(UNTAG_Int(variable2)<=UNTAG_Int( variable0 /*index*/));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable2 = TAG_Int(UNTAG_Int( variable0 /*index*/)+UNTAG_Int( TAG_Int(1)));
-    ((array___Array___enlarge_t)CALL( self,COLOR_array___AbstractArray___enlarge))( self, variable2) /*Array::enlarge*/;
-  }
-  variable2 = ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-  variable2 = TAG_Bool(UNTAG_Int(variable2)<=UNTAG_Int( variable0 /*index*/));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable2 = TAG_Int(UNTAG_Int( variable0 /*index*/)+UNTAG_Int( TAG_Int(1)));
-    ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ = variable2;
-  }
-  variable2 = ATTR_array___Array____items( self) /*Array::_items*/;
-  UNBOX_NativeArray(variable2)[UNTAG_Int( variable0 /*index*/)]= variable1 /*item*/;
-  tracehead = trace.prev;
+void array___Array___add(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 249;
+  fra.me.meth = LOCATE_array___Array___add;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:251 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 251);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___Array____capacity(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:252 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_capacity");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 252);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___Array____capacity(fra.me.REG[0]);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB0));
+  /* ./../lib/standard//collection//array.nit:252 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Int(1);
+    REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:253 */
+    CALL_array___AbstractArray___enlarge(fra.me.REG[0])(fra.me.REG[0], REGB1);
+  }
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:255 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB1;
+  fra.me.REG[0] = ATTR_array___Array____items(fra.me.REG[0]);
+  REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:256 */
+  if (UNTAG_Bool(REGB1)) {
+    fprintf(stderr, "Reciever is null");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 256);
+    nit_exit(1);
+  }
+  /* ./../lib/standard//collection//array.nit:591 */
+  ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)]=fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___Array___enlarge(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 245, LOCATE_array___Array___enlarge};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ATTR_array___Array____capacity( self) /*Array::_capacity*/;
-  variable1 = variable2;
-  variable2 = TAG_Bool(UNTAG_Int( variable0 /*cap*/)<=UNTAG_Int( variable1 /*c*/));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    goto return_label39;
-  }
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable1 /*c*/)<=UNTAG_Int( variable0 /*cap*/));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    variable2 = TAG_Int(UNTAG_Int( variable1 /*c*/)*UNTAG_Int( TAG_Int(2)));
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(2)));
-    variable1 = variable2 /*c=*/;
-    continue_40: while(0);
-  }
-  break_40: while(0);
-  variable3 = BOX_NativeArray((val_t*)malloc((UNTAG_Int( variable1 /*c*/) * sizeof(val_t))));
-  variable2 = variable3;
-  variable3 = ATTR_array___Array____capacity( self) /*Array::_capacity*/;
-  variable3 = TAG_Bool(UNTAG_Int(variable3)>UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable3)) { /*if*/
-    variable3 = ATTR_array___Array____items( self) /*Array::_items*/;
-    variable4 = ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/;
-    (void)memcpy(UNBOX_NativeArray( variable2 /*a*/), UNBOX_NativeArray(variable3), UNTAG_Int(variable4)*sizeof(val_t));
-  }
-  ATTR_array___Array____items( self) /*Array::_items*/ =  variable2 /*a*/;
-  ATTR_array___Array____capacity( self) /*Array::_capacity*/ =  variable1 /*c*/;
-  return_label39: while(false);
-  tracehead = trace.prev;
+void array___Array___enlarge(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 259;
+  fra.me.meth = LOCATE_array___Array___enlarge;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Bool(ATTR_array___Array____capacity(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:261 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_capacity");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 261);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___Array____capacity(fra.me.REG[0]);
+  REGB2 = TAG_Bool(UNTAG_Int(REGB0)<=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:262 */
+  if (UNTAG_Bool(REGB2)) {
+    goto label1;
+  }
+  /* ./../lib/standard//collection//array.nit:263 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB0));
+    /* ./../lib/standard//collection//array.nit:263 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Int(2);
+      REGB2 = TAG_Int(UNTAG_Int(REGB1)*UNTAG_Int(REGB2));
+      REGB3 = TAG_Int(2);
+      REGB3 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB3));
+      REGB1 = REGB3;
+    /* ./../lib/standard//collection//array.nit:263 */
+    } else {
+      goto label2;
+    }
+  }
+  label2: while(0);
+  fra.me.REG[1] = NEW_NativeArray(UNTAG_Int(REGB1), sizeof(val_t));
+  REGB0 = TAG_Bool(ATTR_array___Array____capacity(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:265 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_capacity");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 265);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___Array____capacity(fra.me.REG[0]);
+  REGB3 = TAG_Int(0);
+  REGB3 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB3));
+  /* ./../lib/standard//collection//array.nit:265 */
+  if (UNTAG_Bool(REGB3)) {
+    fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[0]);
+    REGB3 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB3)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 265);
+      nit_exit(1);
+    }
+    REGB3 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+    REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+    if (UNTAG_Bool(REGB0)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 265);
+      nit_exit(1);
+    }
+    /* ./../lib/standard//collection//array.nit:592 */
+    (void)memcpy(((Nit_NativeArray )fra.me.REG[1])->val, ((Nit_NativeArray)fra.me.REG[2])->val, UNTAG_Int(REGB3)*sizeof(val_t));
+  }
+  /* ./../lib/standard//collection//array.nit:266 */
+  ATTR_array___Array____items(fra.me.REG[0]) = fra.me.REG[1];
+  /* ./../lib/standard//collection//array.nit:267 */
+  ATTR_array___Array____capacity(fra.me.REG[0]) = REGB1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___Array___init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 256, LOCATE_array___Array___init};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i]) return;
-  ATTR_array___Array____capacity( self) /*Array::_capacity*/ =  TAG_Int(0);
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ =  TAG_Int(0);
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i] = 1;
-  tracehead = trace.prev;
+void array___Array___init(val_t p0, int* init_table){
+  int itpos1 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Array].i;
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  if (init_table[itpos1]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 270;
+  fra.me.meth = LOCATE_array___Array___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:273 */
+  ATTR_array___Array____capacity(fra.me.REG[0]) = REGB0;
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:274 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos1] = 1;
   return;
 }
-void array___Array___with(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 263, LOCATE_array___Array___with};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  /* check if p<Array[E] with p:E */
-  if (( param0!=NIT_NULL) && !VAL_ISA( param0, COLOR_Array, ID_Array)) { fprintf(stderr, "Cast failled"); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array___init, LOCATE_array, 264); nit_exit(1); } /*cast Array[E]*/;
-  variable0 =  param0;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i]) return;
-  variable1 = ATTR_array___Array____items( variable0 /*objects*/) /*Array::_items*/;
-  ATTR_array___Array____items( self) /*Array::_items*/ = variable1;
-  variable1 = ATTR_array___Array____capacity( variable0 /*objects*/) /*Array::_capacity*/;
-  ATTR_array___Array____capacity( self) /*Array::_capacity*/ = variable1;
-  variable1 = ((array___AbstractArray___length_t)CALL( variable0 /*objects*/,COLOR_abstract_collection___Collection___length))( variable0 /*objects*/) /*AbstractArray::length*/;
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ = variable1;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i] = 1;
-  tracehead = trace.prev;
+void array___Array___with_items(val_t p0, val_t p1, int* init_table){
+  int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Array].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t tmp;
+  if (init_table[itpos2]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 277;
+  fra.me.meth = LOCATE_array___Array___with_items;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool((fra.me.REG[1]!=NIT_NULL) && VAL_ISA(fra.me.REG[1], COLOR_Array, ID_Array)) /*cast Array[E]*/;
+  /* ./../lib/standard//collection//array.nit:277 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Cast failed");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 277);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[1]);
+  /* ./../lib/standard//collection//array.nit:280 */
+  ATTR_array___Array____items(fra.me.REG[0]) = fra.me.REG[2];
+  REGB0 = TAG_Bool(ATTR_array___Array____capacity(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:281 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_capacity");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 281);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___Array____capacity(fra.me.REG[1]);
+  ATTR_array___Array____capacity(fra.me.REG[0]) = REGB0;
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  /* ./../lib/standard//collection//array.nit:282 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos2] = 1;
   return;
 }
-void array___Array___with_capacity(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 271, LOCATE_array___Array___with_capacity};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i]) return;
-  variable1 = TAG_Bool(UNTAG_Int( variable0 /*cap*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable1)) { fprintf(stderr, "Assert%s failed", " 'positive' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array___with_capacity, LOCATE_array, 274); nit_exit(1);}
-  variable1 = BOX_NativeArray((val_t*)malloc((UNTAG_Int( variable0 /*cap*/) * sizeof(val_t))));
-  ATTR_array___Array____items( self) /*Array::_items*/ = variable1;
-  ATTR_array___Array____capacity( self) /*Array::_capacity*/ =  variable0 /*cap*/;
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ =  TAG_Int(0);
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i] = 1;
-  tracehead = trace.prev;
+void array___Array___with_capacity(val_t p0, val_t p1, int* init_table){
+  int itpos3 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Array].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  if (init_table[itpos3]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 285;
+  fra.me.meth = LOCATE_array___Array___with_capacity;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:288 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'positive'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 288);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = NEW_NativeArray(UNTAG_Int(REGB0), sizeof(val_t));
+  /* ./../lib/standard//collection//array.nit:289 */
+  ATTR_array___Array____items(fra.me.REG[0]) = fra.me.REG[1];
+  /* ./../lib/standard//collection//array.nit:290 */
+  ATTR_array___Array____capacity(fra.me.REG[0]) = REGB0;
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:291 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos3] = 1;
   return;
 }
-void array___Array___filled_with(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 280, LOCATE_array___Array___filled_with};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i]) return;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*count*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable2)) { fprintf(stderr, "Assert%s failed", " 'positive' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array___filled_with, LOCATE_array, 283); nit_exit(1);}
-  variable2 = BOX_NativeArray((val_t*)malloc((UNTAG_Int( variable1 /*count*/) * sizeof(val_t))));
-  ATTR_array___Array____items( self) /*Array::_items*/ = variable2;
-  ATTR_array___Array____capacity( self) /*Array::_capacity*/ =  variable1 /*count*/;
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ =  variable1 /*count*/;
-  variable2 =  TAG_Int(0);
-  while (true) { /*while*/
-    variable3 = TAG_Bool(UNTAG_Int( variable2 /*i*/)<UNTAG_Int( variable1 /*count*/));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    ((array___Array_____braeq_t)CALL( self,COLOR_abstract_collection___Map_____braeq))( self,  variable2 /*i*/,  variable0 /*value*/) /*Array::[]=*/;
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_45: while(0);
-  }
-  break_45: while(0);
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i] = 1;
-  tracehead = trace.prev;
+void array___Array___filled_with(val_t p0, val_t p1, val_t p2, int* init_table){
+  int itpos4 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Array].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  if (init_table[itpos4]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 294;
+  fra.me.meth = LOCATE_array___Array___filled_with;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:297 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'positive'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 297);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = NEW_NativeArray(UNTAG_Int(REGB0), sizeof(val_t));
+  /* ./../lib/standard//collection//array.nit:298 */
+  ATTR_array___Array____items(fra.me.REG[0]) = fra.me.REG[2];
+  /* ./../lib/standard//collection//array.nit:299 */
+  ATTR_array___Array____capacity(fra.me.REG[0]) = REGB0;
+  /* ./../lib/standard//collection//array.nit:300 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:302 */
+  while(1) {
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB0));
+    /* ./../lib/standard//collection//array.nit:302 */
+    if (UNTAG_Bool(REGB2)) {
+      /* ./../lib/standard//collection//array.nit:303 */
+      CALL_abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB1, fra.me.REG[1]);
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
+      REGB1 = REGB2;
+    /* ./../lib/standard//collection//array.nit:304 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:302 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  init_table[itpos4] = 1;
   return;
 }
-void array___Array___with_native(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 294, LOCATE_array___Array___with_native};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i]) return;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*size*/)>=UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable2)) { fprintf(stderr, "Assert%s failed", " 'positive' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array___with_native, LOCATE_array, 297); nit_exit(1);}
-  ATTR_array___Array____items( self) /*Array::_items*/ =  variable0 /*nat*/;
-  ATTR_array___Array____capacity( self) /*Array::_capacity*/ =  variable1 /*size*/;
-  ATTR_array___AbstractArray____length( self) /*AbstractArray::_length*/ =  variable1 /*size*/;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_Array].i] = 1;
-  tracehead = trace.prev;
+void array___Array___with_native(val_t p0, val_t p1, val_t p2, int* init_table){
+  int itpos5 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_Array].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  if (init_table[itpos5]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 308;
+  fra.me.meth = LOCATE_array___Array___with_native;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:311 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert %s  failed", "'positive'");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 311);
+    nit_exit(1);
+  }
+  /* ./../lib/standard//collection//array.nit:312 */
+  ATTR_array___Array____items(fra.me.REG[0]) = fra.me.REG[1];
+  /* ./../lib/standard//collection//array.nit:313 */
+  ATTR_array___Array____capacity(fra.me.REG[0]) = REGB0;
+  /* ./../lib/standard//collection//array.nit:314 */
+  ATTR_array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos5] = 1;
   return;
 }
-val_t array___ArrayIterator___item(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 313, LOCATE_array___ArrayIterator___item};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayIterator____array( self) /*ArrayIterator::_array*/;
-  variable1 = ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/;
-  variable0 = ((abstract_collection___Map_____bra_t)CALL(variable0,COLOR_abstract_collection___Map_____bra))(variable0, variable1) /*Map::[]*/;
-  goto return_label47;
-  return_label47: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArrayIterator___item__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 315, LOCATE_array___ArrayIterator___item__eq};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArrayIterator____array( self) /*ArrayIterator::_array*/;
-  variable2 = ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/;
-  ((abstract_collection___Map_____braeq_t)CALL(variable1,COLOR_abstract_collection___Map_____braeq))(variable1, variable2,  variable0 /*e*/) /*Map::[]=*/;
-  tracehead = trace.prev;
+val_t array___Array___intern_items(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 320;
+  fra.me.meth = LOCATE_array___Array___intern_items;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[0] = ATTR_array___Array____items(fra.me.REG[0]);
+  REGB0 = TAG_Bool(fra.me.REG[0]!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:322 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Cast failed");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 322);
+    nit_exit(1);
+  }
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___ArrayIterator___item(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 331;
+  fra.me.meth = LOCATE_array___ArrayIterator___item;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayIterator____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:331 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 331);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_array___ArrayIterator____array(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___ArrayIterator____index(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_index");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 331);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___ArrayIterator____index(fra.me.REG[0]);
+  fra.me.REG[1] = CALL_abstract_collection___MapRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB0);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
+}
+void array___ArrayIterator___next(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 337;
+  fra.me.meth = LOCATE_array___ArrayIterator___next;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = ATTR_array___ArrayIterator____index(fra.me.REG[0]);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:337 */
+  ATTR_array___ArrayIterator____index(fra.me.REG[0]) = REGB1;
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArrayIterator___is_ok(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 317, LOCATE_array___ArrayIterator___is_ok};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/;
-  variable1 = ATTR_array___ArrayIterator____array( self) /*ArrayIterator::_array*/;
-  variable1 = ((array___AbstractArray___length_t)CALL(variable1,COLOR_abstract_collection___Collection___length))(variable1) /*AbstractArray::length*/;
-  variable0 = TAG_Bool(UNTAG_Int(variable0)<UNTAG_Int(variable1));
-  goto return_label49;
-  return_label49: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArrayIterator___next(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 319, LOCATE_array___ArrayIterator___next};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/ = TAG_Int(UNTAG_Int(ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/)+UNTAG_Int( TAG_Int(1)));
-  tracehead = trace.prev;
+val_t array___ArrayIterator___is_ok(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 335;
+  fra.me.meth = LOCATE_array___ArrayIterator___is_ok;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayIterator____index(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:335 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_index");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 335);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___ArrayIterator____index(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___ArrayIterator____array(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 335);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayIterator____array(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:335 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB1;
+}
+val_t array___ArrayIterator___index(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 345;
+  fra.me.meth = LOCATE_array___ArrayIterator___index;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayIterator____index(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:345 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_index");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 345);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___ArrayIterator____index(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+void array___ArrayIterator___init(val_t p0, val_t p1, int* init_table){
+  int itpos6 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_ArrayIterator].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  if (init_table[itpos6]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 339;
+  fra.me.meth = LOCATE_array___ArrayIterator___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//collection//array.nit:341 */
+  ATTR_array___ArrayIterator____array(fra.me.REG[0]) = fra.me.REG[1];
+  REGB0 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:342 */
+  ATTR_array___ArrayIterator____index(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
+  init_table[itpos6] = 1;
   return;
 }
-void array___ArrayIterator___init(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 321, LOCATE_array___ArrayIterator___init};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArrayIterator].i]) return;
-  variable1 = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable0 /*a*/ ==  NIT_NULL /*null*/) || (( variable0 /*a*/ != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL( variable0 /*a*/,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable0 /*a*/, NIT_NULL /*null*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL( variable0 /*a*/,COLOR_kernel___Object_____eqeq))( variable0 /*a*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable1)) { fprintf(stderr, "Assert%s failed", " 'not_nil' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___ArrayIterator___init, LOCATE_array, 323); nit_exit(1);}
-  ATTR_array___ArrayIterator____array( self) /*ArrayIterator::_array*/ =  variable0 /*a*/;
-  ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/ =  TAG_Int(0);
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArrayIterator].i] = 1;
-  tracehead = trace.prev;
+val_t array___ArraySet___iterator(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 381;
+  fra.me.meth = LOCATE_array___ArraySet___iterator;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:381 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 381);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  fra.me.REG[0] = NEW_ArraySetIterator_array___ArraySetIterator___init(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___ArraySet___is_empty(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 361;
+  fra.me.meth = LOCATE_array___ArraySet___is_empty;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:361 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 361);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB0 = CALL_abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArraySet___length(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 363;
+  fra.me.meth = LOCATE_array___ArraySet___length;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:363 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 363);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:363 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArraySet___has(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 357;
+  fra.me.meth = LOCATE_array___ArraySet___has;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:357 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 357);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB0 = CALL_abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArraySet___first(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 365;
+  fra.me.meth = LOCATE_array___ArraySet___first;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:367 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 367);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:367 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Assert failed");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 367);
+    nit_exit(1);
+  }
+  REGB1 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:368 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 368);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___first(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+void array___ArraySet___clear(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 379;
+  fra.me.meth = LOCATE_array___ArraySet___clear;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:379 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 379);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  CALL_abstract_collection___RemovableCollection___clear(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArrayIterator___index(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 328, LOCATE_array___ArrayIterator___index};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  tracehead = trace.prev;
-  return ATTR_array___ArrayIterator____index( self) /*ArrayIterator::_index*/;
-}
-val_t array___ArraySet___has(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 340, LOCATE_array___ArraySet___has};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable1 = ((array___AbstractArray___has_t)CALL(variable1,COLOR_abstract_collection___Collection___has))(variable1,  variable0 /*e*/) /*AbstractArray::has*/;
-  goto return_label52;
-  return_label52: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void array___ArraySet___add(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 342, LOCATE_array___ArraySet___add};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable1 = ((array___AbstractArray___has_t)CALL(variable1,COLOR_abstract_collection___Collection___has))(variable1,  variable0 /*e*/) /*AbstractArray::has*/;
-  if (UNTAG_Bool( TAG_Bool(!UNTAG_Bool(variable1)))) { /*if*/
-    variable1 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-    ((array___AbstractArray___add_t)CALL(variable1,COLOR_abstract_collection___SimpleCollection___add))(variable1,  variable0 /*e*/) /*AbstractArray::add*/;
-  }
-  tracehead = trace.prev;
+void array___ArraySet___remove(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 371;
+  fra.me.meth = LOCATE_array___ArraySet___remove;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:373 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 373);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB0 = CALL_abstract_collection___SequenceRead___index_of(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:374 */
+  if (UNTAG_Bool(REGB1)) {
+    CALL_array___ArraySet___remove_at(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  }
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArraySet___is_empty(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 344, LOCATE_array___ArraySet___is_empty};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable0 = ((array___AbstractArray___is_empty_t)CALL(variable0,COLOR_abstract_collection___Collection___is_empty))(variable0) /*AbstractArray::is_empty*/;
-  goto return_label54;
-  return_label54: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___ArraySet___length(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 346, LOCATE_array___ArraySet___length};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable0 = ((array___AbstractArray___length_t)CALL(variable0,COLOR_abstract_collection___Collection___length))(variable0) /*AbstractArray::length*/;
-  goto return_label55;
-  return_label55: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___ArraySet___first(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 348, LOCATE_array___ArraySet___first};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable0 = ((array___AbstractArray___length_t)CALL(variable0,COLOR_abstract_collection___Collection___length))(variable0) /*AbstractArray::length*/;
-  variable0 = TAG_Bool(UNTAG_Int(variable0)>UNTAG_Int( TAG_Int(0)));
-  if (!UNTAG_Bool(variable0)) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___ArraySet___first, LOCATE_array, 350); nit_exit(1);}
-  variable0 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable0 = ((abstract_collection___IndexedCollection___first_t)CALL(variable0,COLOR_abstract_collection___Collection___first))(variable0) /*IndexedCollection::first*/;
-  goto return_label56;
-  return_label56: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArraySet___remove(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 354, LOCATE_array___ArraySet___remove};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable2 = ((array___AbstractArray___index_of_t)CALL(variable2,COLOR_abstract_collection___IndexedCollection___index_of))(variable2,  variable0 /*item*/) /*AbstractArray::index_of*/;
-  variable1 = variable2;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    ((array___ArraySet___remove_at_t)CALL( self,COLOR_array___ArraySet___remove_at))( self,  variable1 /*i*/) /*ArraySet::remove_at*/;
-  }
-  tracehead = trace.prev;
+void array___ArraySet___remove_all(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 377;
+  fra.me.meth = LOCATE_array___ArraySet___remove_all;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//collection//array.nit:377 */
+  CALL_abstract_collection___RemovableCollection___remove(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___ArraySet___remove_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 360, LOCATE_array___ArraySet___remove_all};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  ((array___ArraySet___remove_t)CALL( self,COLOR_abstract_collection___RemovableCollection___remove))( self,  variable0 /*item*/) /*ArraySet::remove*/;
-  tracehead = trace.prev;
+void array___ArraySet___add(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 359;
+  fra.me.meth = LOCATE_array___ArraySet___add;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:359 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 359);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB0 = CALL_abstract_collection___Collection___has(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
+  if (UNTAG_Bool(REGB0)) {
+    REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB0)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_array");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 359);
+      nit_exit(1);
+    }
+    fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+    array___Array___add(fra.me.REG[0], fra.me.REG[1]);
+  }
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___ArraySet___clear(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 362, LOCATE_array___ArraySet___clear};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  ((array___AbstractArray___clear_t)CALL(variable0,COLOR_abstract_collection___RemovableCollection___clear))(variable0) /*AbstractArray::clear*/;
-  tracehead = trace.prev;
+void array___ArraySet___enlarge(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 383;
+  fra.me.meth = LOCATE_array___ArraySet___enlarge;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:384 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 384);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  CALL_array___AbstractArray___enlarge(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArraySet___iterator(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 364, LOCATE_array___ArraySet___iterator};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable0 = ((array___AbstractArray___iterator_t)CALL(variable0,COLOR_abstract_collection___Collection___iterator))(variable0) /*AbstractArray::iterator*/;
-  variable1 = NEW_ArraySetIterator_array___ArraySetIterator___init(variable0); /*new ArraySetIterator[E]*/
-  variable0 = variable1;
-  goto return_label60;
-  return_label60: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArraySet___enlarge(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 366, LOCATE_array___ArraySet___enlarge};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  ((array___Array___enlarge_t)CALL(variable1,COLOR_array___AbstractArray___enlarge))(variable1,  variable0 /*cap*/) /*Array::enlarge*/;
-  tracehead = trace.prev;
+void array___ArraySet___remove_at(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 386;
+  fra.me.meth = LOCATE_array___ArraySet___remove_at;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:388 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 388);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 388);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  fra.me.REG[2] = CALL_abstract_collection___SequenceRead___last(fra.me.REG[2])(fra.me.REG[2]);
+  CALL_abstract_collection___Map_____braeq(fra.me.REG[1])(fra.me.REG[1], REGB0, fra.me.REG[2]);
+  REGB0 = TAG_Bool(ATTR_array___ArraySet____array(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:389 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_array");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 389);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySet____array(fra.me.REG[0]);
+  CALL_abstract_collection___Sequence___pop(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___ArraySet___remove_at(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 369, LOCATE_array___ArraySet___remove_at};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable2 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  variable2 = ((abstract_collection___IndexedCollection___last_t)CALL(variable2,COLOR_abstract_collection___IndexedCollection___last))(variable2) /*IndexedCollection::last*/;
-  ((array___Array_____braeq_t)CALL(variable1,COLOR_abstract_collection___Map_____braeq))(variable1,  variable0 /*i*/, variable2) /*Array::[]=*/;
-  variable1 = ATTR_array___ArraySet____array( self) /*ArraySet::_array*/;
-  ((array___AbstractArray___pop_t)CALL(variable1,COLOR_abstract_collection___IndexedCollection___pop))(variable1) /*AbstractArray::pop*/;
-  tracehead = trace.prev;
+void array___ArraySet___init(val_t p0, int* init_table){
+  int itpos7 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_ArraySet].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  if (init_table[itpos7]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 392;
+  fra.me.meth = LOCATE_array___ArraySet___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = NEW_Array_array___Array___init();
+  /* ./../lib/standard//collection//array.nit:393 */
+  ATTR_array___ArraySet____array(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  init_table[itpos7] = 1;
   return;
 }
-void array___ArraySet___init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 375, LOCATE_array___ArraySet___init};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArraySet].i]) return;
-  variable0 = NEW_Array_array___Array___init(); /*new Array[E]*/
-  ATTR_array___ArraySet____array( self) /*ArraySet::_array*/ = variable0;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArraySet].i] = 1;
-  tracehead = trace.prev;
+void array___ArraySet___with_capacity(val_t p0, val_t p1, int* init_table){
+  int itpos8 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_ArraySet].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  if (init_table[itpos8]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 395;
+  fra.me.meth = LOCATE_array___ArraySet___with_capacity;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  fra.me.REG[1] = NEW_Array_array___Array___with_capacity(REGB0);
+  /* ./../lib/standard//collection//array.nit:396 */
+  ATTR_array___ArraySet____array(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  init_table[itpos8] = 1;
   return;
 }
-void array___ArraySet___with_capacity(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 378, LOCATE_array___ArraySet___with_capacity};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArraySet].i]) return;
-  variable1 = NEW_Array_array___Array___with_capacity( variable0 /*i*/); /*new Array[E]*/
-  ATTR_array___ArraySet____array( self) /*ArraySet::_array*/ = variable1;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArraySet].i] = 1;
-  tracehead = trace.prev;
+val_t array___ArraySetIterator___item(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 407;
+  fra.me.meth = LOCATE_array___ArraySetIterator___item;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySetIterator____iter(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:407 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_iter");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 407);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySetIterator____iter(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+void array___ArraySetIterator___next(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 405;
+  fra.me.meth = LOCATE_array___ArraySetIterator___next;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySetIterator____iter(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:405 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_iter");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 405);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySetIterator____iter(fra.me.REG[0]);
+  CALL_abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArraySetIterator___is_ok(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 386, LOCATE_array___ArraySetIterator___is_ok};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySetIterator____iter( self) /*ArraySetIterator::_iter*/;
-  variable0 = ((array___ArrayIterator___is_ok_t)CALL(variable0,COLOR_abstract_collection___Iterator___is_ok))(variable0) /*ArrayIterator::is_ok*/;
-  goto return_label65;
-  return_label65: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArraySetIterator___next(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 388, LOCATE_array___ArraySetIterator___next};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySetIterator____iter( self) /*ArraySetIterator::_iter*/;
-  ((array___ArrayIterator___next_t)CALL(variable0,COLOR_abstract_collection___Iterator___next))(variable0) /*ArrayIterator::next*/;
-  tracehead = trace.prev;
+val_t array___ArraySetIterator___is_ok(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 403;
+  fra.me.meth = LOCATE_array___ArraySetIterator___is_ok;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArraySetIterator____iter(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:403 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_iter");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 403);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArraySetIterator____iter(fra.me.REG[0]);
+  REGB0 = CALL_abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+void array___ArraySetIterator___init(val_t p0, val_t p1, int* init_table){
+  int itpos9 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_ArraySetIterator].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  if (init_table[itpos9]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 409;
+  fra.me.meth = LOCATE_array___ArraySetIterator___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  /* ./../lib/standard//collection//array.nit:409 */
+  ATTR_array___ArraySetIterator____iter(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  init_table[itpos9] = 1;
   return;
 }
-val_t array___ArraySetIterator___item(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 390, LOCATE_array___ArraySetIterator___item};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArraySetIterator____iter( self) /*ArraySetIterator::_iter*/;
-  variable0 = ((array___ArrayIterator___item_t)CALL(variable0,COLOR_abstract_collection___Iterator___item))(variable0) /*ArrayIterator::item*/;
-  goto return_label67;
-  return_label67: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArraySetIterator___init(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 392, LOCATE_array___ArraySetIterator___init};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArraySetIterator].i]) return;
-  ATTR_array___ArraySetIterator____iter( self) /*ArraySetIterator::_iter*/ =  variable0 /*iter*/;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArraySetIterator].i] = 1;
-  tracehead = trace.prev;
+val_t array___ArrayMap___iterator(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 471;
+  fra.me.meth = LOCATE_array___ArrayMap___iterator;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:471 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 471);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  fra.me.REG[0] = NEW_CoupleMapIterator_abstract_collection___CoupleMapIterator___init(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___ArrayMap___is_empty(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 473;
+  fra.me.meth = LOCATE_array___ArrayMap___is_empty;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:473 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 473);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  REGB0 = CALL_abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArrayMap___length(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 458;
+  fra.me.meth = LOCATE_array___ArrayMap___length;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:459 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 459);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:459 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArrayMap___has(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 444;
+  fra.me.meth = LOCATE_array___ArrayMap___has;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:447 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 447);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  while(1) {
+    REGB0 = CALL_abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+    if (UNTAG_Bool(REGB0)) {
+      fra.me.REG[2] = CALL_abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
+      fra.me.REG[2] = CALL_abstract_collection___Couple___second(fra.me.REG[2])(fra.me.REG[2]);
+      REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      if (UNTAG_Bool(REGB0)) {
+      } else {
+        REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB1)) {
+          REGB1 = TAG_Bool(false);
+          REGB0 = REGB1;
+        } else {
+          REGB1 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB0 = REGB1;
+        }
+      }
+      if (UNTAG_Bool(REGB0)) {
+        REGB0 = TAG_Bool(true);
+        goto label1;
+      }
+    } else {
+      goto label2;
+    }
+    CALL_abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  }
+  label2: while(0);
+  REGB1 = TAG_Bool(false);
+  REGB0 = REGB1;
+  /* ./../lib/standard//collection//array.nit:448 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArrayMap___has_only(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 451;
+  fra.me.meth = LOCATE_array___ArrayMap___has_only;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:454 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 454);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  while(1) {
+    REGB0 = CALL_abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+    if (UNTAG_Bool(REGB0)) {
+      fra.me.REG[2] = CALL_abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
+      fra.me.REG[2] = CALL_abstract_collection___Couple___second(fra.me.REG[2])(fra.me.REG[2]);
+      REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      if (UNTAG_Bool(REGB0)) {
+      } else {
+        REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB1)) {
+          REGB1 = TAG_Bool(false);
+          REGB0 = REGB1;
+        } else {
+          REGB1 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB0 = REGB1;
+        }
+      }
+      REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
+      if (UNTAG_Bool(REGB0)) {
+        REGB0 = TAG_Bool(false);
+        goto label1;
+      }
+    } else {
+      goto label2;
+    }
+    CALL_abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  }
+  label2: while(0);
+  REGB1 = TAG_Bool(true);
+  REGB0 = REGB1;
+  /* ./../lib/standard//collection//array.nit:455 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArrayMap___count(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 463;
+  fra.me.meth = LOCATE_array___ArrayMap___count;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Int(0);
+  REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:467 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 467);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  while(1) {
+    REGB1 = CALL_abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+    if (UNTAG_Bool(REGB1)) {
+      fra.me.REG[2] = CALL_abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
+      fra.me.REG[2] = CALL_abstract_collection___Couple___second(fra.me.REG[2])(fra.me.REG[2]);
+      REGB1 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      if (UNTAG_Bool(REGB1)) {
+      } else {
+        REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+          REGB2 = TAG_Bool(false);
+          REGB1 = REGB2;
+        } else {
+          REGB2 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB1 = REGB2;
+        }
+      }
+      if (UNTAG_Bool(REGB1)) {
+        REGB1 = TAG_Int(1);
+        REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
+        REGB0 = REGB1;
+      /* ./../lib/standard//collection//array.nit:467 */
+      }
+    } else {
+      goto label1;
+    }
+    CALL_abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  }
+  label1: while(0);
+  /* ./../lib/standard//collection//array.nit:468 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+val_t array___ArrayMap___first(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 461;
+  fra.me.meth = LOCATE_array___ArrayMap___first;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:461 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 461);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_abstract_collection___Collection___first(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+    fprintf(stderr, "Reciever is null");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 461);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = CALL_abstract_collection___Couple___first(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+void array___ArrayMap___clear(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 504;
+  fra.me.meth = LOCATE_array___ArrayMap___clear;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:504 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 504);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  CALL_abstract_collection___RemovableCollection___clear(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArrayMap_____bra(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 402, LOCATE_array___ArrayMap_____bra};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ((array___ArrayMap___index_t)CALL( self,COLOR_array___ArrayMap___index))( self,  variable0 /*key*/) /*ArrayMap::index*/;
-  variable1 = variable2;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable3 =  variable1 /*i*/;
-    variable4 = TAG_Bool(UNTAG_Int( variable3 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable5 = variable4;
-    if (UNTAG_Bool(variable5)) { /* and */
-      variable5 = variable2;
-      variable5 = ATTR_array___AbstractArray____length(variable5) /*AbstractArray::_length*/;
-      variable5 = TAG_Bool(UNTAG_Int( variable3 /*index*/)<UNTAG_Int(variable5));
+void array___ArrayMap___remove(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 475;
+  fra.me.meth = LOCATE_array___ArrayMap___remove;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:477 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 477);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:478 */
+  while(1) {
+    REGB0 = TAG_Int(0);
+    REGB0 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB0));
+    /* ./../lib/standard//collection//array.nit:478 */
+    if (UNTAG_Bool(REGB0)) {
+      REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:479 */
+      if (UNTAG_Bool(REGB0)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_items");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 479);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+      REGB0 = REGB1;
+      REGB2 = TAG_Int(0);
+      REGB2 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB2));
+      /* ./../lib/standard//collection//array.nit:233 */
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+        } else {
+          fprintf(stderr, "Uninitialized attribute %s", "_length");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+        REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
+      /* ./../lib/standard//collection//array.nit:233 */
+      } else {
+        REGB3 = TAG_Bool(false);
+        REGB2 = REGB3;
+      }
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Assert %s  failed", "'index'");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+      REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:234 */
+      if (UNTAG_Bool(REGB2)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB0)];
+      /* ./../lib/standard//collection//array.nit:234 */
+      goto label1;
+      label1: while(0);
+      REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:479 */
+      if (UNTAG_Bool(REGB0)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 479);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = CALL_abstract_collection___Couple___second(fra.me.REG[2])(fra.me.REG[2]);
+      REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      if (UNTAG_Bool(REGB0)) {
+      } else {
+        REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+          REGB2 = TAG_Bool(false);
+          REGB0 = REGB2;
+        } else {
+          REGB2 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB0 = REGB2;
+        }
+      }
+      if (UNTAG_Bool(REGB0)) {
+        /* ./../lib/standard//collection//array.nit:480 */
+        CALL_array___ArrayMap___remove_at_index(fra.me.REG[0])(fra.me.REG[0], REGB1);
+        /* ./../lib/standard//collection//array.nit:481 */
+        goto label2;
+      }
+      REGB0 = TAG_Int(1);
+      REGB0 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+      REGB1 = REGB0;
+    /* ./../lib/standard//collection//array.nit:483 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:478 */
+      goto label3;
     }
-    variable4 = variable5;
-    if (!UNTAG_Bool(variable4)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable4 = variable2;
-    variable4 = ATTR_array___Array____items(variable4) /*Array::_items*/;
-    variable4 = UNBOX_NativeArray(variable4)[UNTAG_Int( variable3 /*index*/)];
-    goto return_label70;
-    return_label70: while(false);
-    variable2 = variable4;
-    variable2 = ((abstract_collection___Couple___second_t)CALL(variable2,COLOR_abstract_collection___Couple___second))(variable2) /*Couple::second*/;
-    variable1 = variable2;
-    goto return_label69;
-  } else { /*if*/
-    variable1 =  NIT_NULL /*null*/;
-    goto return_label69;
-  }
-  return_label69: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void array___ArrayMap_____braeq(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 413, LOCATE_array___ArrayMap_____braeq};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-    val_t variable5;
-    val_t variable6;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  param1;
-  variable3 = ((array___ArrayMap___index_t)CALL( self,COLOR_array___ArrayMap___index))( self,  variable0 /*key*/) /*ArrayMap::index*/;
-  variable2 = variable3;
-  variable3 = TAG_Bool(UNTAG_Int( variable2 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable3)) { /*if*/
-    variable3 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable4 =  variable2 /*i*/;
-    variable5 = TAG_Bool(UNTAG_Int( variable4 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable6 = variable5;
-    if (UNTAG_Bool(variable6)) { /* and */
-      variable6 = variable3;
-      variable6 = ATTR_array___AbstractArray____length(variable6) /*AbstractArray::_length*/;
-      variable6 = TAG_Bool(UNTAG_Int( variable4 /*index*/)<UNTAG_Int(variable6));
+  }
+  label3: while(0);
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+void array___ArrayMap___remove_all(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 487;
+  fra.me.meth = LOCATE_array___ArrayMap___remove_all;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:489 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 489);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  REGB0 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:490 */
+  while(1) {
+    REGB0 = TAG_Int(0);
+    REGB0 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB0));
+    /* ./../lib/standard//collection//array.nit:490 */
+    if (UNTAG_Bool(REGB0)) {
+      REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:491 */
+      if (UNTAG_Bool(REGB0)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_items");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 491);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+      REGB0 = REGB1;
+      REGB2 = TAG_Int(0);
+      REGB2 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB2));
+      /* ./../lib/standard//collection//array.nit:233 */
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+        } else {
+          fprintf(stderr, "Uninitialized attribute %s", "_length");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+        REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
+      /* ./../lib/standard//collection//array.nit:233 */
+      } else {
+        REGB3 = TAG_Bool(false);
+        REGB2 = REGB3;
+      }
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Assert %s  failed", "'index'");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+      REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:234 */
+      if (UNTAG_Bool(REGB2)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB0)];
+      /* ./../lib/standard//collection//array.nit:234 */
+      goto label1;
+      label1: while(0);
+      REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:491 */
+      if (UNTAG_Bool(REGB0)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 491);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = CALL_abstract_collection___Couple___second(fra.me.REG[2])(fra.me.REG[2]);
+      REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      if (UNTAG_Bool(REGB0)) {
+      } else {
+        REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB2)) {
+          REGB2 = TAG_Bool(false);
+          REGB0 = REGB2;
+        } else {
+          REGB2 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB0 = REGB2;
+        }
+      }
+      if (UNTAG_Bool(REGB0)) {
+        /* ./../lib/standard//collection//array.nit:492 */
+        CALL_array___ArrayMap___remove_at_index(fra.me.REG[0])(fra.me.REG[0], REGB1);
+      }
+      REGB0 = TAG_Int(1);
+      REGB0 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
+      REGB1 = REGB0;
+    /* ./../lib/standard//collection//array.nit:494 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:490 */
+      goto label2;
     }
-    variable5 = variable6;
-    if (!UNTAG_Bool(variable5)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable5 = variable3;
-    variable5 = ATTR_array___Array____items(variable5) /*Array::_items*/;
-    variable5 = UNBOX_NativeArray(variable5)[UNTAG_Int( variable4 /*index*/)];
-    goto return_label72;
-    return_label72: while(false);
-    variable3 = variable5;
-    ((abstract_collection___Couple___second__eq_t)CALL(variable3,COLOR_abstract_collection___Couple___second__eq))(variable3,  variable1 /*item*/) /*Couple::second=*/;
-  } else { /*if*/
-    variable3 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable4 = NEW_Couple_abstract_collection___Couple___init( variable0 /*key*/,  variable1 /*item*/); /*new Couple[K, E]*/
-    ((array___AbstractArray___push_t)CALL(variable3,COLOR_abstract_collection___IndexedCollection___push))(variable3, variable4) /*AbstractArray::push*/;
-  }
-  tracehead = trace.prev;
+  }
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArrayMap___has_key(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 424, LOCATE_array___ArrayMap___has_key};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ((array___ArrayMap___index_t)CALL( self,COLOR_array___ArrayMap___index))( self,  variable0 /*key*/) /*ArrayMap::index*/;
-  variable1 = TAG_Bool(UNTAG_Int(variable1)>=UNTAG_Int( TAG_Int(0)));
-  goto return_label73;
-  return_label73: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___ArrayMap___has(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 427, LOCATE_array___ArrayMap___has};
-  val_t variable0;
-  val_t variable1;
-    val_t variable2;
-    val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable1 = ((array___AbstractArray___iterator_t)CALL(variable1,COLOR_abstract_collection___Collection___iterator))(variable1) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable2 = ((array___ArrayIterator___is_ok_t)CALL(variable1,COLOR_abstract_collection___Iterator___is_ok))(variable1) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable2)) break; /*for*/
-    variable2 = ((array___ArrayIterator___item_t)CALL(variable1,COLOR_abstract_collection___Iterator___item))(variable1) /*ArrayIterator::item*/;
-    variable3 = ((abstract_collection___Couple___second_t)CALL( variable2 /*i*/,COLOR_abstract_collection___Couple___second))( variable2 /*i*/) /*Couple::second*/;
-    variable3 = TAG_Bool((variable3 ==  variable0 /*item*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable1 =  TAG_Bool(true);
-      goto return_label74;
+val_t array___ArrayMap_____bra(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 419;
+  fra.me.meth = LOCATE_array___ArrayMap_____bra;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = CALL_array___ArrayMap___index(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:423 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:424 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_items");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 424);
+      nit_exit(1);
     }
-    continue_75: while(0);
-    ((array___ArrayIterator___next_t)CALL(variable1,COLOR_abstract_collection___Iterator___next))(variable1) /*ArrayIterator::next*/;
-  }
-  break_75: while(0);
-  variable1 =  TAG_Bool(false);
-  goto return_label74;
-  return_label74: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___ArrayMap___has_only(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 434, LOCATE_array___ArrayMap___has_only};
-  val_t variable0;
-  val_t variable1;
-    val_t variable2;
-    val_t variable3;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable1 = ((array___AbstractArray___iterator_t)CALL(variable1,COLOR_abstract_collection___Collection___iterator))(variable1) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable2 = ((array___ArrayIterator___is_ok_t)CALL(variable1,COLOR_abstract_collection___Iterator___is_ok))(variable1) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable2)) break; /*for*/
-    variable2 = ((array___ArrayIterator___item_t)CALL(variable1,COLOR_abstract_collection___Iterator___item))(variable1) /*ArrayIterator::item*/;
-    variable3 = ((abstract_collection___Couple___second_t)CALL( variable2 /*i*/,COLOR_abstract_collection___Couple___second))( variable2 /*i*/) /*Couple::second*/;
-    variable3 = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable3 ==  variable0 /*item*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*item*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      variable1 =  TAG_Bool(false);
-      goto return_label76;
+    fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+    REGB1 = TAG_Int(0);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:233 */
+    if (UNTAG_Bool(REGB1)) {
+      REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_length");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+      REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:233 */
+    } else {
+      REGB2 = TAG_Bool(false);
+      REGB1 = REGB2;
     }
-    continue_77: while(0);
-    ((array___ArrayIterator___next_t)CALL(variable1,COLOR_abstract_collection___Iterator___next))(variable1) /*ArrayIterator::next*/;
-  }
-  break_77: while(0);
-  variable1 =  TAG_Bool(true);
-  goto return_label76;
-  return_label76: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___ArrayMap___length(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 441, LOCATE_array___ArrayMap___length};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable0 = ((array___AbstractArray___length_t)CALL(variable0,COLOR_abstract_collection___Collection___length))(variable0) /*AbstractArray::length*/;
-  goto return_label78;
-  return_label78: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___ArrayMap___first(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 444, LOCATE_array___ArrayMap___first};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable0 = ((abstract_collection___IndexedCollection___first_t)CALL(variable0,COLOR_abstract_collection___Collection___first))(variable0) /*IndexedCollection::first*/;
-  variable0 = ((abstract_collection___Couple___first_t)CALL(variable0,COLOR_abstract_collection___Couple___first))(variable0) /*Couple::first*/;
-  goto return_label79;
-  return_label79: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___ArrayMap___count(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 446, LOCATE_array___ArrayMap___count};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 =  TAG_Int(0);
-  variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable2 = ((array___AbstractArray___iterator_t)CALL(variable2,COLOR_abstract_collection___Collection___iterator))(variable2) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable3 = ((array___ArrayIterator___is_ok_t)CALL(variable2,COLOR_abstract_collection___Iterator___is_ok))(variable2) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable3)) break; /*for*/
-    variable3 = ((array___ArrayIterator___item_t)CALL(variable2,COLOR_abstract_collection___Iterator___item))(variable2) /*ArrayIterator::item*/;
-    variable4 = ((abstract_collection___Couple___second_t)CALL( variable3 /*i*/,COLOR_abstract_collection___Couple___second))( variable3 /*i*/) /*Couple::second*/;
-    variable4 = TAG_Bool((variable4 ==  variable0 /*item*/) || ((variable4 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable4,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable4, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable4,COLOR_kernel___Object_____eqeq))(variable4,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable4)) { /*if*/
-      variable1 = TAG_Int(UNTAG_Int(variable1)+UNTAG_Int( TAG_Int(1))) /*nb*/;
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Assert %s  failed", "'index'");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+      nit_exit(1);
     }
-    continue_81: while(0);
-    ((array___ArrayIterator___next_t)CALL(variable2,COLOR_abstract_collection___Iterator___next))(variable2) /*ArrayIterator::next*/;
-  }
-  break_81: while(0);
-  variable1 =  variable1 /*nb*/;
-  goto return_label80;
-  return_label80: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-val_t array___ArrayMap___iterator(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 454, LOCATE_array___ArrayMap___iterator};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable0 = ((array___AbstractArray___iterator_t)CALL(variable0,COLOR_abstract_collection___Collection___iterator))(variable0) /*AbstractArray::iterator*/;
-  variable1 = NEW_CoupleMapIterator_abstract_collection___CoupleMapIterator___init(variable0); /*new CoupleMapIterator[K, E]*/
-  variable0 = variable1;
-  goto return_label82;
-  return_label82: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___ArrayMap___is_empty(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 456, LOCATE_array___ArrayMap___is_empty};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable0 = ((array___AbstractArray___is_empty_t)CALL(variable0,COLOR_abstract_collection___Collection___is_empty))(variable0) /*AbstractArray::is_empty*/;
-  goto return_label83;
-  return_label83: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-void array___ArrayMap___remove(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 458, LOCATE_array___ArrayMap___remove};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable2 = ((array___AbstractArray___length_t)CALL(variable2,COLOR_abstract_collection___Collection___length))(variable2) /*AbstractArray::length*/;
-  variable2 = TAG_Int(UNTAG_Int(variable2)-UNTAG_Int( TAG_Int(1)));
-  variable1 = variable2;
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable3 =  variable1 /*i*/;
-    variable4 = TAG_Bool(UNTAG_Int( variable3 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable5 = variable4;
-    if (UNTAG_Bool(variable5)) { /* and */
-      variable5 = variable2;
-      variable5 = ATTR_array___AbstractArray____length(variable5) /*AbstractArray::_length*/;
-      variable5 = TAG_Bool(UNTAG_Int( variable3 /*index*/)<UNTAG_Int(variable5));
+    fra.me.REG[0] = ATTR_array___Array____items(fra.me.REG[0]);
+    REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:234 */
+    if (UNTAG_Bool(REGB1)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+      nit_exit(1);
     }
-    variable4 = variable5;
-    if (!UNTAG_Bool(variable4)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable4 = variable2;
-    variable4 = ATTR_array___Array____items(variable4) /*Array::_items*/;
-    variable4 = UNBOX_NativeArray(variable4)[UNTAG_Int( variable3 /*index*/)];
-    goto return_label86;
-    return_label86: while(false);
-    variable2 = variable4;
-    variable2 = ((abstract_collection___Couple___second_t)CALL(variable2,COLOR_abstract_collection___Couple___second))(variable2) /*Couple::second*/;
-    variable2 = TAG_Bool((variable2 ==  variable0 /*item*/) || ((variable2 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable2,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable2, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable2,COLOR_kernel___Object_____eqeq))(variable2,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable2)) { /*if*/
-      ((array___ArrayMap___remove_at_index_t)CALL( self,COLOR_array___ArrayMap___remove_at_index))( self,  variable1 /*i*/) /*ArrayMap::remove_at_index*/;
-      goto return_label84;
+    fra.me.REG[0] = ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)];
+    /* ./../lib/standard//collection//array.nit:234 */
+    goto label1;
+    label1: while(0);
+    REGB0 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:424 */
+    if (UNTAG_Bool(REGB0)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 424);
+      nit_exit(1);
     }
-    variable1 = TAG_Int(UNTAG_Int(variable1)-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_85: while(0);
+    fra.me.REG[0] = CALL_abstract_collection___Couple___second(fra.me.REG[0])(fra.me.REG[0]);
+    goto label2;
+  } else {
+    /* ./../lib/standard//collection//array.nit:426 */
+    fprintf(stderr, "Aborted");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 426);
+    nit_exit(1);
   }
-  break_85: while(0);
-  return_label84: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void array___ArrayMap___remove_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 470, LOCATE_array___ArrayMap___remove_all};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable2 = ((array___AbstractArray___length_t)CALL(variable2,COLOR_abstract_collection___Collection___length))(variable2) /*AbstractArray::length*/;
-  variable2 = TAG_Int(UNTAG_Int(variable2)-UNTAG_Int( TAG_Int(1)));
-  variable1 = variable2;
-  while (true) { /*while*/
-    variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable2)) break; /* while*/
-    variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable3 =  variable1 /*i*/;
-    variable4 = TAG_Bool(UNTAG_Int( variable3 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable5 = variable4;
-    if (UNTAG_Bool(variable5)) { /* and */
-      variable5 = variable2;
-      variable5 = ATTR_array___AbstractArray____length(variable5) /*AbstractArray::_length*/;
-      variable5 = TAG_Bool(UNTAG_Int( variable3 /*index*/)<UNTAG_Int(variable5));
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___ArrayMap___has_key(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 441;
+  fra.me.meth = LOCATE_array___ArrayMap___has_key;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = CALL_array___ArrayMap___index(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:442 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB1;
+}
+void array___ArrayMap_____braeq(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 430;
+  fra.me.meth = LOCATE_array___ArrayMap_____braeq;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 4;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[3] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  fra.me.REG[2] = p2;
+  REGB0 = CALL_array___ArrayMap___index(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:434 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:435 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_items");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 435);
+      nit_exit(1);
+    }
+    fra.me.REG[3] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+    REGB1 = TAG_Int(0);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:233 */
+    if (UNTAG_Bool(REGB1)) {
+      REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_length");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[3]);
+      REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:233 */
+    } else {
+      REGB2 = TAG_Bool(false);
+      REGB1 = REGB2;
+    }
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Assert %s  failed", "'index'");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+      nit_exit(1);
+    }
+    fra.me.REG[3] = ATTR_array___Array____items(fra.me.REG[3]);
+    REGB1 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:234 */
+    if (UNTAG_Bool(REGB1)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+      nit_exit(1);
     }
-    variable4 = variable5;
-    if (!UNTAG_Bool(variable4)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable4 = variable2;
-    variable4 = ATTR_array___Array____items(variable4) /*Array::_items*/;
-    variable4 = UNBOX_NativeArray(variable4)[UNTAG_Int( variable3 /*index*/)];
-    goto return_label89;
-    return_label89: while(false);
-    variable2 = variable4;
-    variable2 = ((abstract_collection___Couple___second_t)CALL(variable2,COLOR_abstract_collection___Couple___second))(variable2) /*Couple::second*/;
-    variable2 = TAG_Bool((variable2 ==  variable0 /*item*/) || ((variable2 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable2,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable2, variable0 /*item*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable2,COLOR_kernel___Object_____eqeq))(variable2,  variable0 /*item*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable2)) { /*if*/
-      ((array___ArrayMap___remove_at_index_t)CALL( self,COLOR_array___ArrayMap___remove_at_index))( self,  variable1 /*i*/) /*ArrayMap::remove_at_index*/;
+    fra.me.REG[3] = ((Nit_NativeArray)fra.me.REG[3])->val[UNTAG_Int(REGB0)];
+    /* ./../lib/standard//collection//array.nit:234 */
+    goto label1;
+    label1: while(0);
+    REGB0 = TAG_Bool(fra.me.REG[3]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:435 */
+    if (UNTAG_Bool(REGB0)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 435);
+      nit_exit(1);
     }
-    variable1 = TAG_Int(UNTAG_Int(variable1)-UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_88: while(0);
+    CALL_abstract_collection___Couple___second__eq(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[2]);
+  } else {
+    REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:437 */
+    if (UNTAG_Bool(REGB0)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_items");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 437);
+      nit_exit(1);
+    }
+    fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+    fra.me.REG[2] = NEW_Couple_abstract_collection___Couple___init(fra.me.REG[1], fra.me.REG[2]);
+    CALL_abstract_collection___Sequence___push(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2]);
   }
-  break_88: while(0);
-  tracehead = trace.prev;
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___ArrayMap___remove_at(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 481, LOCATE_array___ArrayMap___remove_at};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ((array___ArrayMap___index_t)CALL( self,COLOR_array___ArrayMap___index))( self,  variable0 /*key*/) /*ArrayMap::index*/;
-  variable1 = variable2;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    ((array___ArrayMap___remove_at_index_t)CALL( self,COLOR_array___ArrayMap___remove_at_index))( self,  variable1 /*i*/) /*ArrayMap::remove_at_index*/;
-  }
-  tracehead = trace.prev;
+void array___ArrayMap___remove_at(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 498;
+  fra.me.meth = LOCATE_array___ArrayMap___remove_at;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = CALL_array___ArrayMap___index(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:501 */
+  if (UNTAG_Bool(REGB1)) {
+    CALL_array___ArrayMap___remove_at_index(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  }
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___ArrayMap___clear(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 487, LOCATE_array___ArrayMap___clear};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  ((array___AbstractArray___clear_t)CALL(variable0,COLOR_abstract_collection___RemovableCollection___clear))(variable0) /*AbstractArray::clear*/;
-  tracehead = trace.prev;
+val_t array___ArrayMap___couple_at(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 509;
+  fra.me.meth = LOCATE_array___ArrayMap___couple_at;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = CALL_array___ArrayMap___index(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  REGB1 = TAG_Int(0);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:512 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:513 */
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_items");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 513);
+      nit_exit(1);
+    }
+    fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+    REGB1 = TAG_Int(0);
+    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:233 */
+    if (UNTAG_Bool(REGB1)) {
+      REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
+      if (UNTAG_Bool(REGB1)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_length");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[0]);
+      REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+    /* ./../lib/standard//collection//array.nit:233 */
+    } else {
+      REGB2 = TAG_Bool(false);
+      REGB1 = REGB2;
+    }
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Assert %s  failed", "'index'");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+      nit_exit(1);
+    }
+    fra.me.REG[0] = ATTR_array___Array____items(fra.me.REG[0]);
+    REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:234 */
+    if (UNTAG_Bool(REGB1)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+      nit_exit(1);
+    }
+    fra.me.REG[0] = ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)];
+    /* ./../lib/standard//collection//array.nit:234 */
+    goto label1;
+    label1: while(0);
+    /* ./../lib/standard//collection//array.nit:513 */
+    goto label2;
+  } else {
+    fra.me.REG[0] = NIT_NULL;
+    /* ./../lib/standard//collection//array.nit:515 */
+    goto label2;
+  }
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+void array___ArrayMap___enlarge(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 506;
+  fra.me.meth = LOCATE_array___ArrayMap___enlarge;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:507 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 507);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  CALL_array___AbstractArray___enlarge(fra.me.REG[0])(fra.me.REG[0], REGB0);
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___ArrayMap___enlarge(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 489, LOCATE_array___ArrayMap___enlarge};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  ((array___Array___enlarge_t)CALL(variable1,COLOR_array___AbstractArray___enlarge))(variable1,  variable0 /*cap*/) /*Array::enlarge*/;
-  tracehead = trace.prev;
+void array___ArrayMap___remove_at_index(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 522;
+  fra.me.meth = LOCATE_array___ArrayMap___remove_at_index;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:525 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 525);
+    nit_exit(1);
+  }
+  fra.me.REG[1] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 525);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  fra.me.REG[2] = CALL_abstract_collection___SequenceRead___last(fra.me.REG[2])(fra.me.REG[2]);
+  CALL_abstract_collection___Map_____braeq(fra.me.REG[1])(fra.me.REG[1], REGB0, fra.me.REG[2]);
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:526 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 526);
+    nit_exit(1);
+  }
+  fra.me.REG[0] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  CALL_abstract_collection___Sequence___pop(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
   return;
 }
-val_t array___ArrayMap___couple_at(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 492, LOCATE_array___ArrayMap___couple_at};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-    val_t variable3;
-    val_t variable4;
-    val_t variable5;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ((array___ArrayMap___index_t)CALL( self,COLOR_array___ArrayMap___index))( self,  variable0 /*key*/) /*ArrayMap::index*/;
-  variable1 = variable2;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*i*/)>=UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable3 =  variable1 /*i*/;
-    variable4 = TAG_Bool(UNTAG_Int( variable3 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable5 = variable4;
-    if (UNTAG_Bool(variable5)) { /* and */
-      variable5 = variable2;
-      variable5 = ATTR_array___AbstractArray____length(variable5) /*AbstractArray::_length*/;
-      variable5 = TAG_Bool(UNTAG_Int( variable3 /*index*/)<UNTAG_Int(variable5));
+val_t array___ArrayMap___index(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t REGB1;
+  val_t REGB2;
+  val_t REGB3;
+  val_t REGB4;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 532;
+  fra.me.meth = LOCATE_array___ArrayMap___index;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = TAG_Bool(ATTR_array___ArrayMap____last_index(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:536 */
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_last_index");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 536);
+    nit_exit(1);
+  }
+  REGB0 = ATTR_array___ArrayMap____last_index(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:537 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_items");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 537);
+    nit_exit(1);
+  }
+  fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+  REGB1 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+  /* ./../lib/standard//collection//array.nit:23 */
+  if (UNTAG_Bool(REGB1)) {
+  } else {
+    fprintf(stderr, "Uninitialized attribute %s", "_length");
+    fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+    nit_exit(1);
+  }
+  REGB1 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
+  /* ./../lib/standard//collection//array.nit:537 */
+  if (UNTAG_Bool(REGB1)) {
+    REGB1 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_items");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 537);
+      nit_exit(1);
     }
-    variable4 = variable5;
-    if (!UNTAG_Bool(variable4)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable4 = variable2;
-    variable4 = ATTR_array___Array____items(variable4) /*Array::_items*/;
-    variable4 = UNBOX_NativeArray(variable4)[UNTAG_Int( variable3 /*index*/)];
-    goto return_label94;
-    return_label94: while(false);
-    variable2 = variable4;
-    variable1 = variable2;
-    goto return_label93;
-  } else { /*if*/
-    variable1 =  NIT_NULL /*null*/;
-    goto return_label93;
-  }
-  return_label93: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void array___ArrayMap___remove_at_index(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 505, LOCATE_array___ArrayMap___remove_at_index};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable1 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable2 = ((abstract_collection___IndexedCollection___last_t)CALL(variable2,COLOR_abstract_collection___IndexedCollection___last))(variable2) /*IndexedCollection::last*/;
-  ((array___Array_____braeq_t)CALL(variable1,COLOR_abstract_collection___Map_____braeq))(variable1,  variable0 /*i*/, variable2) /*Array::[]=*/;
-  variable1 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  ((array___AbstractArray___pop_t)CALL(variable1,COLOR_abstract_collection___IndexedCollection___pop))(variable1) /*AbstractArray::pop*/;
-  tracehead = trace.prev;
-  return;
-}
-val_t array___ArrayMap___index(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 515, LOCATE_array___ArrayMap___index};
-  val_t variable0;
-  val_t variable1;
-  val_t variable2;
-  val_t variable3;
-    val_t variable4;
-    val_t variable5;
-    val_t variable6;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 =  param0;
-  variable2 = ATTR_array___ArrayMap____last_index( self) /*ArrayMap::_last_index*/;
-  variable1 = variable2;
-  variable2 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-  variable2 = ((array___AbstractArray___length_t)CALL(variable2,COLOR_abstract_collection___Collection___length))(variable2) /*AbstractArray::length*/;
-  variable2 = TAG_Bool(UNTAG_Int( variable1 /*l*/)<UNTAG_Int(variable2));
-  variable3 = variable2;
-  if (UNTAG_Bool(variable3)) { /* and */
-    variable3 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable4 =  variable1 /*l*/;
-    variable5 = TAG_Bool(UNTAG_Int( variable4 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable6 = variable5;
-    if (UNTAG_Bool(variable6)) { /* and */
-      variable6 = variable3;
-      variable6 = ATTR_array___AbstractArray____length(variable6) /*AbstractArray::_length*/;
-      variable6 = TAG_Bool(UNTAG_Int( variable4 /*index*/)<UNTAG_Int(variable6));
+    fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+    REGB1 = REGB0;
+    REGB2 = TAG_Int(0);
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:233 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_length");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+      REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:233 */
+    } else {
+      REGB3 = TAG_Bool(false);
+      REGB2 = REGB3;
     }
-    variable5 = variable6;
-    if (!UNTAG_Bool(variable5)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable5 = variable3;
-    variable5 = ATTR_array___Array____items(variable5) /*Array::_items*/;
-    variable5 = UNBOX_NativeArray(variable5)[UNTAG_Int( variable4 /*index*/)];
-    goto return_label97;
-    return_label97: while(false);
-    variable3 = variable5;
-    variable3 = ((abstract_collection___Couple___first_t)CALL(variable3,COLOR_abstract_collection___Couple___first))(variable3) /*Couple::first*/;
-    variable3 = TAG_Bool((variable3 ==  variable0 /*key*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*key*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*key*/) /*Object::==*/)))));
-  }
-  variable2 = variable3;
-  if (UNTAG_Bool(variable2)) { /*if*/
-    variable1 =  variable1 /*l*/;
-    goto return_label96;
-  }
-  variable2 =  TAG_Int(0);
-  while (true) { /*while*/
-    variable3 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable3 = ((array___AbstractArray___length_t)CALL(variable3,COLOR_abstract_collection___Collection___length))(variable3) /*AbstractArray::length*/;
-    variable3 = TAG_Bool(UNTAG_Int( variable2 /*i*/)<UNTAG_Int(variable3));
-    if (!UNTAG_Bool(variable3)) break; /* while*/
-    variable3 = ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/;
-    variable4 =  variable2 /*i*/;
-    variable5 = TAG_Bool(UNTAG_Int( variable4 /*index*/)>=UNTAG_Int( TAG_Int(0)));
-    variable6 = variable5;
-    if (UNTAG_Bool(variable6)) { /* and */
-      variable6 = variable3;
-      variable6 = ATTR_array___AbstractArray____length(variable6) /*AbstractArray::_length*/;
-      variable6 = TAG_Bool(UNTAG_Int( variable4 /*index*/)<UNTAG_Int(variable6));
+    if (UNTAG_Bool(REGB2)) {
+    } else {
+      fprintf(stderr, "Assert %s  failed", "'index'");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+      nit_exit(1);
     }
-    variable5 = variable6;
-    if (!UNTAG_Bool(variable5)) { fprintf(stderr, "Assert%s failed", " 'index' "); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_array___Array_____bra, LOCATE_array, 229); nit_exit(1);}
-    variable5 = variable3;
-    variable5 = ATTR_array___Array____items(variable5) /*Array::_items*/;
-    variable5 = UNBOX_NativeArray(variable5)[UNTAG_Int( variable4 /*index*/)];
-    goto return_label99;
-    return_label99: while(false);
-    variable3 = variable5;
-    variable3 = ((abstract_collection___Couple___first_t)CALL(variable3,COLOR_abstract_collection___Couple___first))(variable3) /*Couple::first*/;
-    variable3 = TAG_Bool((variable3 ==  variable0 /*key*/) || ((variable3 != NIT_NULL) && ((((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable3, variable0 /*key*/)):(UNTAG_Bool(((kernel___Object_____eqeq_t)CALL(variable3,COLOR_kernel___Object_____eqeq))(variable3,  variable0 /*key*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable3)) { /*if*/
-      ATTR_array___ArrayMap____last_index( self) /*ArrayMap::_last_index*/ =  variable2 /*i*/;
-      variable1 =  variable2 /*i*/;
-      goto return_label96;
+    fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+    REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:234 */
+    if (UNTAG_Bool(REGB2)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+      nit_exit(1);
     }
-    variable2 = TAG_Int(UNTAG_Int(variable2)+UNTAG_Int( TAG_Int(1))) /*i*/;
-    continue_98: while(0);
-  }
-  break_98: while(0);
-  variable3 = TAG_Int(-UNTAG_Int( TAG_Int(1)));
-  variable1 = variable3;
-  goto return_label96;
-  return_label96: while(false);
-  tracehead = trace.prev;
-  return variable1;
-}
-void array___ArrayMap___init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 533, LOCATE_array___ArrayMap___init};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  if (init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArrayMap].i]) return;
-  variable0 = NEW_Array_array___Array___init(); /*new Array[Couple[K, E]]*/
-  ATTR_array___ArrayMap____items( self) /*ArrayMap::_items*/ = variable0;
-  init_table[VAL2OBJ( self)->vft[INIT_TABLE_POS_ArrayMap].i] = 1;
-  tracehead = trace.prev;
+    fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB1)];
+    /* ./../lib/standard//collection//array.nit:234 */
+    goto label1;
+    label1: while(0);
+    REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:537 */
+    if (UNTAG_Bool(REGB1)) {
+      fprintf(stderr, "Reciever is null");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 537);
+      nit_exit(1);
+    }
+    fra.me.REG[2] = CALL_abstract_collection___Couple___first(fra.me.REG[2])(fra.me.REG[2]);
+    REGB1 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+    if (UNTAG_Bool(REGB1)) {
+    } else {
+      REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      if (UNTAG_Bool(REGB2)) {
+        REGB2 = TAG_Bool(false);
+        REGB1 = REGB2;
+      } else {
+        REGB2 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+        REGB1 = REGB2;
+      }
+    }
+  } else {
+    REGB2 = TAG_Bool(false);
+    REGB1 = REGB2;
+  }
+  if (UNTAG_Bool(REGB1)) {
+    goto label2;
+  }
+  REGB1 = TAG_Int(0);
+  /* ./../lib/standard//collection//array.nit:540 */
+  while(1) {
+    REGB2 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+    if (UNTAG_Bool(REGB2)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_items");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 540);
+      nit_exit(1);
+    }
+    fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+    REGB2 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+    /* ./../lib/standard//collection//array.nit:23 */
+    if (UNTAG_Bool(REGB2)) {
+    } else {
+      fprintf(stderr, "Uninitialized attribute %s", "_length");
+      fprintf(stderr, " (%s:%d)\n", LOCATE_array, 23);
+      nit_exit(1);
+    }
+    REGB2 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
+    /* ./../lib/standard//collection//array.nit:540 */
+    if (UNTAG_Bool(REGB2)) {
+      REGB2 = TAG_Bool(ATTR_array___ArrayMap____items(fra.me.REG[0])!=NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:541 */
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        fprintf(stderr, "Uninitialized attribute %s", "_items");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 541);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_array___ArrayMap____items(fra.me.REG[0]);
+      REGB2 = REGB1;
+      REGB3 = TAG_Int(0);
+      REGB3 = TAG_Bool(UNTAG_Int(REGB2)>=UNTAG_Int(REGB3));
+      /* ./../lib/standard//collection//array.nit:233 */
+      if (UNTAG_Bool(REGB3)) {
+        REGB3 = TAG_Bool(ATTR_array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+        } else {
+          fprintf(stderr, "Uninitialized attribute %s", "_length");
+          fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+          nit_exit(1);
+        }
+        REGB3 = ATTR_array___AbstractArrayRead____length(fra.me.REG[2]);
+        REGB3 = TAG_Bool(UNTAG_Int(REGB2)<UNTAG_Int(REGB3));
+      /* ./../lib/standard//collection//array.nit:233 */
+      } else {
+        REGB4 = TAG_Bool(false);
+        REGB3 = REGB4;
+      }
+      if (UNTAG_Bool(REGB3)) {
+      } else {
+        fprintf(stderr, "Assert %s  failed", "'index'");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 233);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ATTR_array___Array____items(fra.me.REG[2]);
+      REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:234 */
+      if (UNTAG_Bool(REGB3)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 234);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB2)];
+      /* ./../lib/standard//collection//array.nit:234 */
+      goto label3;
+      label3: while(0);
+      REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+      /* ./../lib/standard//collection//array.nit:541 */
+      if (UNTAG_Bool(REGB2)) {
+        fprintf(stderr, "Reciever is null");
+        fprintf(stderr, " (%s:%d)\n", LOCATE_array, 541);
+        nit_exit(1);
+      }
+      fra.me.REG[2] = CALL_abstract_collection___Couple___first(fra.me.REG[2])(fra.me.REG[2]);
+      REGB2 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
+      if (UNTAG_Bool(REGB2)) {
+      } else {
+        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
+        if (UNTAG_Bool(REGB3)) {
+          REGB3 = TAG_Bool(false);
+          REGB2 = REGB3;
+        } else {
+          REGB3 = CALL_kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
+          REGB2 = REGB3;
+        }
+      }
+      if (UNTAG_Bool(REGB2)) {
+        /* ./../lib/standard//collection//array.nit:542 */
+        ATTR_array___ArrayMap____last_index(fra.me.REG[0]) = REGB1;
+        REGB0 = REGB1;
+        /* ./../lib/standard//collection//array.nit:543 */
+        goto label2;
+      }
+      REGB2 = TAG_Int(1);
+      REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
+      REGB1 = REGB2;
+    /* ./../lib/standard//collection//array.nit:545 */
+    } else {
+      /* ./../lib/standard//collection//array.nit:540 */
+      goto label4;
+    }
+  }
+  label4: while(0);
+  REGB1 = TAG_Int(1);
+  REGB1 = TAG_Int(-UNTAG_Int(REGB1));
+  REGB0 = REGB1;
+  /* ./../lib/standard//collection//array.nit:547 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+void array___ArrayMap___init(val_t p0, int* init_table){
+  int itpos10 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_ArrayMap].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  if (init_table[itpos10]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 550;
+  fra.me.meth = LOCATE_array___ArrayMap___init;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = NEW_Array_array___Array___init();
+  /* ./../lib/standard//collection//array.nit:553 */
+  ATTR_array___ArrayMap____items(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  init_table[itpos10] = 1;
   return;
 }
-val_t array___Iterator___to_a(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 543, LOCATE_array___Iterator___to_a};
-  val_t variable0;
-  val_t variable1;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable1 = NEW_Array_array___Array___init(); /*new Array[E]*/
-  variable0 = variable1;
-  while (true) { /*while*/
-    variable1 = ((abstract_collection___Iterator___is_ok_t)CALL( self,COLOR_abstract_collection___Iterator___is_ok))( self) /*Iterator::is_ok*/;
-    if (!UNTAG_Bool(variable1)) break; /* while*/
-    variable1 = ((abstract_collection___Iterator___item_t)CALL( self,COLOR_abstract_collection___Iterator___item))( self) /*Iterator::item*/;
-    ((array___AbstractArray___add_t)CALL( variable0 /*res*/,COLOR_abstract_collection___SimpleCollection___add))( variable0 /*res*/, variable1) /*AbstractArray::add*/;
-    ((abstract_collection___Iterator___next_t)CALL( self,COLOR_abstract_collection___Iterator___next))( self) /*Iterator::next*/;
-    continue_102: while(0);
-  }
-  break_102: while(0);
-  variable0 =  variable0 /*res*/;
-  goto return_label101;
-  return_label101: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___Collection___to_a(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 556, LOCATE_array___Collection___to_a};
-  val_t variable0;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  variable0 = ((abstract_collection___Collection___iterator_t)CALL( self,COLOR_abstract_collection___Collection___iterator))( self) /*Collection::iterator*/;
-  variable0 = ((array___Iterator___to_a_t)CALL(variable0,COLOR_array___Iterator___to_a))(variable0) /*Iterator::to_a*/;
-  goto return_label103;
-  return_label103: while(false);
-  tracehead = trace.prev;
-  return variable0;
-}
-val_t array___ArrayCapable___calloc_array(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 567, LOCATE_array___ArrayCapable___calloc_array};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  tracehead = trace.prev;
-  return BOX_NativeArray((val_t*)malloc((UNTAG_Int( param0) * sizeof(val_t))));
-}
-val_t array___NativeArray_____bra(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 573, LOCATE_array___NativeArray_____bra};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  tracehead = trace.prev;
-  return UNBOX_NativeArray( self)[UNTAG_Int( param0)];
-}
-void array___NativeArray_____braeq(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 574, LOCATE_array___NativeArray_____braeq};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  UNBOX_NativeArray( self)[UNTAG_Int( param0)]= param1;
-  tracehead = trace.prev;
+val_t array___Iterator___to_a(val_t p0){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 560;
+  fra.me.meth = LOCATE_array___Iterator___to_a;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 3;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[2] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = NEW_Array_array___Array___init();
+  /* ./../lib/standard//collection//array.nit:564 */
+  while(1) {
+    REGB0 = CALL_abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+    if (UNTAG_Bool(REGB0)) {
+      fra.me.REG[2] = CALL_abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
+      /* ./../lib/standard//collection//array.nit:565 */
+      array___Array___add(fra.me.REG[1], fra.me.REG[2]);
+      /* ./../lib/standard//collection//array.nit:566 */
+      CALL_abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
+    } else {
+      /* ./../lib/standard//collection//array.nit:564 */
+      goto label1;
+    }
+  }
+  label1: while(0);
+  /* ./../lib/standard//collection//array.nit:568 */
+  goto label2;
+  label2: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[1];
+}
+val_t array___Collection___to_a(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 573;
+  fra.me.meth = LOCATE_array___Collection___to_a;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[0] = CALL_abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_array___Iterator___to_a(fra.me.REG[0])(fra.me.REG[0]);
+  /* ./../lib/standard//collection//array.nit:576 */
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___ArrayCapable___calloc_array(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 584;
+  fra.me.meth = LOCATE_array___ArrayCapable___calloc_array;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  REGB0 = p1;
+  fra.me.REG[0] = NEW_NativeArray(UNTAG_Int(REGB0), sizeof(val_t));
+  /* ./../lib/standard//collection//array.nit:584 */
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+val_t array___NativeArray_____bra(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 590;
+  fra.me.meth = LOCATE_array___NativeArray_____bra;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  fra.me.REG[0] = ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)];
+  /* ./../lib/standard//collection//array.nit:590 */
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+void array___NativeArray_____braeq(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 591;
+  fra.me.meth = LOCATE_array___NativeArray_____braeq;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  fra.me.REG[1] = p2;
+  /* ./../lib/standard//collection//array.nit:591 */
+  ((Nit_NativeArray)fra.me.REG[0])->val[UNTAG_Int(REGB0)]=fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
   return;
 }
-void array___NativeArray___copy_to(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 575, LOCATE_array___NativeArray___copy_to};
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_array;
-  (void)memcpy(UNBOX_NativeArray( param0), UNBOX_NativeArray( self), UNTAG_Int( param1)*sizeof(val_t));
-  tracehead = trace.prev;
+void array___NativeArray___copy_to(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_array;
+  fra.me.line = 592;
+  fra.me.meth = LOCATE_array___NativeArray___copy_to;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 2;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[1] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  fra.me.REG[1] = p1;
+  REGB0 = p2;
+  /* ./../lib/standard//collection//array.nit:592 */
+  (void)memcpy(((Nit_NativeArray )fra.me.REG[1])->val, ((Nit_NativeArray)fra.me.REG[0])->val, UNTAG_Int(REGB0)*sizeof(val_t));
+  stack_frame_head = fra.me.prev;
   return;
 }