use nitg to bootstrap; drop bootstrap of nitc

[nit.git] / c_src / standard___string._sep.c

diff --git a/c_src/standard___string._sep.c b/c_src/standard___string._sep.c
deleted file mode 100644 (file)
index 44581b9..0000000
--- a/c_src/standard___string._sep.c
+++ /dev/null
@@ -1,5845 +0,0 @@
-/* This C file is generated by NIT to compile module standard___string. */
-#include "standard___string._sep.h"
-static const char LOCATE_standard___string___AbstractString___items[] = "string::AbstractString::items";
-val_t standard___string___AbstractString___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_standard___string;
-  fra.me.line = 32;
-  fra.me.meth = LOCATE_standard___string___AbstractString___items;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:32 */
-  REGB0 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 32);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___AbstractString_____bra[] = "string::AbstractString::(abstract_collection::SequenceRead::[])";
-val_t standard___string___AbstractString_____bra(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_standard___string;
-  fra.me.line = 34;
-  fra.me.meth = LOCATE_standard___string___AbstractString_____bra;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:37 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 37);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:970 */
-  REGB0 = TAG_Char(UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB0)]);
-  /* ../lib/standard/string.nit:37 */
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___AbstractString___substring[] = "string::AbstractString::substring";
-val_t standard___string___AbstractString___substring(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;
-    static val_t once_value_3; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 39;
-  fra.me.meth = LOCATE_standard___string___AbstractString___substring;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  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;
-  /* ../lib/standard/string.nit:51 */
-  REGB2 = TAG_Int(0);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:51 */
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 51);
-  }
-  /* ../lib/standard/kernel.nit:245 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:52 */
-  REGB1 = REGB2;
-  /* ../lib/standard/string.nit:53 */
-  REGB2 = TAG_Int(0);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:53 */
-  if (UNTAG_Bool(REGB2)) {
-    REGB2 = TAG_Int(0);
-    REGB0 = REGB2;
-  }
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB1)>UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:54 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    /* ../lib/standard/string.nit:54 */
-    REGB1 = REGB2;
-  }
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:55 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/kernel.nit:247 */
-    REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:56 */
-    fra.me.REG[1] = NEW_Buffer_standard___string___Buffer___with_capacity(REGB2);
-    /* ../lib/standard/string.nit:57 */
-    while(1) {
-      REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB2)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:242 */
-      REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:57 */
-      if (UNTAG_Bool(REGB2)) {
-        /* ../lib/standard/string.nit:58 */
-        REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-        if (UNTAG_Bool(REGB2)) {
-        } else {
-          nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 58);
-        }
-        fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-        /* ../lib/standard/string.nit:970 */
-        REGB2 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB0)]);
-        /* ../lib/standard/string.nit:58 */
-        CALL_standard___collection___abstract_collection___Sequence___push(fra.me.REG[1])(fra.me.REG[1], REGB2);
-        /* ../lib/standard/string.nit:59 */
-        REGB2 = TAG_Int(1);
-        /* ../lib/standard/kernel.nit:245 */
-        REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
-        /* ../lib/standard/string.nit:59 */
-        REGB0 = REGB2;
-      } else {
-        /* ../lib/standard/string.nit:57 */
-        goto label1;
-      }
-    }
-    label1: while(0);
-    /* ../lib/standard/string.nit:61 */
-    fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-    goto label2;
-  } else {
-    /* ../lib/standard/string.nit:63 */
-    if (!once_value_3) {
-      fra.me.REG[0] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB0);
-      once_value_3 = fra.me.REG[0];
-      register_static_object(&once_value_3);
-    } else fra.me.REG[0] = once_value_3;
-    fra.me.REG[0] = fra.me.REG[0];
-    fra.me.REG[1] = fra.me.REG[0];
-    goto label2;
-  }
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___AbstractString___substring_from[] = "string::AbstractString::substring_from";
-val_t standard___string___AbstractString___substring_from(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_standard___string;
-  fra.me.line = 67;
-  fra.me.meth = LOCATE_standard___string___AbstractString___substring_from;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:76 */
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 76);
-  }
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:77 */
-  fra.me.REG[0] = CALL_standard___string___AbstractString___substring(fra.me.REG[0])(fra.me.REG[0], REGB0, REGB1);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___AbstractString___has_substring[] = "string::AbstractString::has_substring";
-val_t standard___string___AbstractString___has_substring(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 REGB3;
-  val_t REGB4;
-  val_t REGB5;
-  val_t REGB6;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 80;
-  fra.me.meth = LOCATE_standard___string___AbstractString___has_substring;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 4;
-  fra.me.nitni_local_ref_head = NULL;
-  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 = p2;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:86 */
-  REGB2 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
-  /* ../lib/standard/kernel.nit:245 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:88 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 88);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:89 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 89);
-  }
-  fra.me.REG[3] = ATTR_standard___string___AbstractString____items(fra.me.REG[1]);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB3 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:90 */
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-  } else {
-    REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:244 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB2)>UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:90 */
-    REGB1 = REGB3;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(0);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:91 */
-  REGB3 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 91);
-  }
-  REGB3 = ATTR_standard___string___String____index_from(fra.me.REG[1]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB4 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:92 */
-  REGB2 = REGB4;
-  /* ../lib/standard/string.nit:93 */
-  while(1) {
-    REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB4)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:243 */
-    REGB4 = TAG_Bool(UNTAG_Int(REGB2)>=UNTAG_Int(REGB3));
-    /* ../lib/standard/string.nit:93 */
-    if (UNTAG_Bool(REGB4)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB4 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB0)]);
-      REGB5 = TAG_Char(UNBOX_NativeString(fra.me.REG[3])[UNTAG_Int(REGB2)]);
-      /* ../lib/standard/string.nit:94 */
-      REGB6 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB5));
-      if (UNTAG_Bool(REGB6)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB5 = TAG_Bool((REGB4)==(REGB5));
-        /* ../lib/standard/string.nit:94 */
-        REGB6 = REGB5;
-      }
-      REGB6 = TAG_Bool(!UNTAG_Bool(REGB6));
-      if (UNTAG_Bool(REGB6)) {
-        REGB6 = TAG_Bool(0);
-        REGB1 = REGB6;
-        goto label1;
-      }
-      /* ../lib/standard/string.nit:95 */
-      REGB6 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB6 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB6));
-      /* ../lib/standard/string.nit:95 */
-      REGB0 = REGB6;
-      /* ../lib/standard/string.nit:96 */
-      REGB6 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB6 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB6));
-      /* ../lib/standard/string.nit:96 */
-      REGB2 = REGB6;
-    } else {
-      /* ../lib/standard/string.nit:93 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:98 */
-  REGB2 = TAG_Bool(1);
-  REGB1 = REGB2;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB1;
-}
-static const char LOCATE_standard___string___AbstractString___has_prefix[] = "string::AbstractString::has_prefix";
-val_t standard___string___AbstractString___has_prefix(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_standard___string;
-  fra.me.line = 101;
-  fra.me.meth = LOCATE_standard___string___AbstractString___has_prefix;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  /* ../lib/standard/string.nit:105 */
-  REGB0 = TAG_Int(0);
-  REGB0 = CALL_standard___string___AbstractString___has_substring(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB0);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___AbstractString___has_suffix[] = "string::AbstractString::has_suffix";
-val_t standard___string___AbstractString___has_suffix(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_standard___string;
-  fra.me.line = 107;
-  fra.me.meth = LOCATE_standard___string___AbstractString___has_suffix;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  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:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:111 */
-  REGB1 = CALL_standard___string___AbstractString___has_substring(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], REGB1);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB1;
-}
-static const char LOCATE_standard___string___AbstractString___to_i[] = "string::AbstractString::to_i";
-val_t standard___string___AbstractString___to_i(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_standard___string;
-  fra.me.line = 113;
-  fra.me.meth = LOCATE_standard___string___AbstractString___to_i;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:120 */
-  fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___String___to_cstring(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:981 */
-  REGB0 = TAG_Int(atoi(UNBOX_NativeString(fra.me.REG[0])));
-  /* ../lib/standard/string.nit:120 */
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___AbstractString___to_f[] = "string::AbstractString::to_f";
-val_t standard___string___AbstractString___to_f(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_standard___string;
-  fra.me.line = 123;
-  fra.me.meth = LOCATE_standard___string___AbstractString___to_f;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:131 */
-  fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___String___to_cstring(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___NativeString___atof(fra.me.REG[0])(fra.me.REG[0]);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___AbstractString___to_hex[] = "string::AbstractString::to_hex";
-val_t standard___string___AbstractString___to_hex(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_standard___string;
-  fra.me.line = 134;
-  fra.me.meth = LOCATE_standard___string___AbstractString___to_hex;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:135 */
-  REGB0 = TAG_Int(16);
-  REGB0 = CALL_standard___string___AbstractString___a_to(fra.me.REG[0])(fra.me.REG[0], REGB0);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___AbstractString___a_to[] = "string::AbstractString::a_to";
-val_t standard___string___AbstractString___a_to(val_t p0, val_t p1){
-  struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
-  val_t REGB0;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 137;
-  fra.me.meth = LOCATE_standard___string___AbstractString___a_to;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 4;
-  fra.me.nitni_local_ref_head = NULL;
-  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;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:137 */
-  fra.me.REG[1] = REGB0;
-  /* ../lib/standard/string.nit:142 */
-  REGB0 = TAG_Int(0);
-  fra.me.REG[2] = REGB0;
-  /* ../lib/standard/string.nit:143 */
-  REGB0 = TAG_Bool(0);
-  fra.me.REG[3] = REGB0;
-  CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___string___AbstractString___a_to_1));
-  switch ((&(fra.me))->has_broke) {
-    case 0: break;
-    case 1: (&(fra.me))->has_broke = 0; goto label3;
-  }
-  /* ../lib/standard/string.nit:160 */
-  if (UNTAG_Bool(fra.me.REG[3])) {
-    /* ../lib/standard/kernel.nit:246 */
-    REGB0 = TAG_Int(-UNTAG_Int(fra.me.REG[2]));
-    /* ../lib/standard/string.nit:161 */
-    fra.me.REG[0] = REGB0;
-    goto label3;
-  } else {
-    /* ../lib/standard/string.nit:163 */
-    fra.me.REG[0] = fra.me.REG[2];
-    goto label3;
-  }
-  label3: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-  void OC_standard___string___AbstractString___a_to_1(struct stack_frame_t *closctx, val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
-    struct {struct stack_frame_t me;} fra;
-    val_t REGB0;
-    val_t REGB1;
-    val_t REGB2;
-    fun_t CREG[1];
-    val_t tmp;
-    /* ../lib/standard/string.nit:145 */
-    fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-    fra.me.file = LOCATE_standard___string;
-    fra.me.line = 0;
-    fra.me.meth = LOCATE_standard___string___AbstractString___a_to;
-    fra.me.has_broke = 0;
-    fra.me.REG_size = 1;
-    fra.me.nitni_local_ref_head = NULL;
-    fra.me.REG[0] = NIT_NULL;
-    fra.me.closure_ctx = closctx_param;
-    fra.me.closure_funs = CREG;
-    fra.me.REG[0] = p0;
-    CREG[0] = clos_fun0;
-    REGB0 = fra.me.REG[0];
-    /* ../lib/standard/string.nit:147 */
-    REGB0 = CALL_standard___kernel___Char___to_i(REGB0)(REGB0);
-    REGB1 = TAG_Bool(VAL_ISA(closctx->REG[1], VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:244 */
-    REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(closctx->REG[1]));
-    /* ../lib/standard/string.nit:148 */
-    if (UNTAG_Bool(REGB1)) {
-      /* ../lib/standard/string.nit:149 */
-      if (UNTAG_Bool(closctx->REG[3])) {
-        /* ../lib/standard/kernel.nit:246 */
-        REGB1 = TAG_Int(-UNTAG_Int(closctx->REG[2]));
-        /* ../lib/standard/string.nit:150 */
-        closctx->REG[0] = REGB1;
-        closctx->has_broke = 1;
-        goto label2;
-      } else {
-        /* ../lib/standard/string.nit:152 */
-        closctx->REG[0] = closctx->REG[2];
-        closctx->has_broke = 1;
-        goto label2;
-      }
-    } else {
-      /* ../lib/standard/string.nit:154 */
-      REGB1 = TAG_Int(0);
-      REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB2)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:242 */
-      REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:154 */
-      if (UNTAG_Bool(REGB1)) {
-        /* ../lib/standard/string.nit:155 */
-        REGB1 = TAG_Bool(1);
-        closctx->REG[3] = REGB1;
-      } else {
-        /* ../lib/standard/kernel.nit:248 */
-        REGB1 = TAG_Int(UNTAG_Int(closctx->REG[2])*UNTAG_Int(closctx->REG[1]));
-        /* ../lib/standard/kernel.nit:245 */
-        REGB0 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB0));
-        /* ../lib/standard/string.nit:157 */
-        closctx->REG[2] = REGB0;
-      }
-    }
-    label2: while(0);
-    stack_frame_head = fra.me.prev;
-    return;
-  }
-static const char LOCATE_standard___string___AbstractString___is_numeric[] = "string::AbstractString::is_numeric";
-val_t standard___string___AbstractString___is_numeric(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_standard___string;
-  fra.me.line = 167;
-  fra.me.meth = LOCATE_standard___string___AbstractString___is_numeric;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:175 */
-  REGB0 = TAG_Bool(0);
-  fra.me.REG[1] = REGB0;
-  CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___string___AbstractString___is_numeric_1));
-  switch ((&(fra.me))->has_broke) {
-    case 0: break;
-    case 1: (&(fra.me))->has_broke = 0; goto label3;
-  }
-  /* ../lib/standard/string.nit:188 */
-  REGB0 = TAG_Bool(1);
-  fra.me.REG[0] = REGB0;
-  goto label3;
-  label3: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-  void OC_standard___string___AbstractString___is_numeric_1(struct stack_frame_t *closctx, val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
-    struct {struct stack_frame_t me;} fra;
-    val_t REGB0;
-    val_t REGB1;
-    val_t REGB2;
-    val_t REGB3;
-    fun_t CREG[1];
-    val_t tmp;
-    /* ../lib/standard/string.nit:176 */
-    fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-    fra.me.file = LOCATE_standard___string;
-    fra.me.line = 0;
-    fra.me.meth = LOCATE_standard___string___AbstractString___is_numeric;
-    fra.me.has_broke = 0;
-    fra.me.REG_size = 1;
-    fra.me.nitni_local_ref_head = NULL;
-    fra.me.REG[0] = NIT_NULL;
-    fra.me.closure_ctx = closctx_param;
-    fra.me.closure_funs = CREG;
-    fra.me.REG[0] = p0;
-    CREG[0] = clos_fun0;
-    REGB0 = fra.me.REG[0];
-    /* ../lib/standard/string.nit:178 */
-    REGB1 = CALL_standard___string___Char___is_numeric(REGB0)(REGB0);
-    REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
-    if (UNTAG_Bool(REGB1)) {
-      /* ../lib/standard/string.nit:180 */
-      REGB1 = TAG_Char('.');
-      REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
-      if (UNTAG_Bool(REGB2)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB1 = TAG_Bool((REGB0)==(REGB1));
-        /* ../lib/standard/string.nit:180 */
-        REGB2 = REGB1;
-      }
-      if (UNTAG_Bool(REGB2)) {
-        REGB2 = TAG_Bool(1);
-      } else {
-        REGB1 = TAG_Char(',');
-        REGB3 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
-        if (UNTAG_Bool(REGB3)) {
-        } else {
-          /* ../lib/standard/kernel.nit:434 */
-          REGB1 = TAG_Bool((REGB0)==(REGB1));
-          /* ../lib/standard/string.nit:180 */
-          REGB3 = REGB1;
-        }
-        REGB2 = REGB3;
-      }
-      if (UNTAG_Bool(REGB2)) {
-        REGB2 = TAG_Bool(!UNTAG_Bool(closctx->REG[1]));
-      } else {
-        REGB3 = TAG_Bool(0);
-        REGB2 = REGB3;
-      }
-      if (UNTAG_Bool(REGB2)) {
-        /* ../lib/standard/string.nit:182 */
-        REGB2 = TAG_Bool(1);
-        closctx->REG[1] = REGB2;
-      } else {
-        /* ../lib/standard/string.nit:184 */
-        REGB2 = TAG_Bool(0);
-        closctx->REG[0] = REGB2;
-        closctx->has_broke = 1;
-        goto label2;
-      }
-    }
-    label2: while(0);
-    stack_frame_head = fra.me.prev;
-    return;
-  }
-static const char LOCATE_standard___string___AbstractString___to_upper[] = "string::AbstractString::to_upper";
-val_t standard___string___AbstractString___to_upper(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_standard___string;
-  fra.me.line = 191;
-  fra.me.meth = LOCATE_standard___string___AbstractString___to_upper;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:196 */
-  fra.me.REG[1] = NEW_Buffer_standard___string___Buffer___with_capacity(REGB0);
-  CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___string___AbstractString___to_upper_1));
-  /* ../lib/standard/string.nit:198 */
-  fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-  void OC_standard___string___AbstractString___to_upper_1(struct stack_frame_t *closctx, val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
-    struct {struct stack_frame_t me;} fra;
-    val_t REGB0;
-    fun_t CREG[1];
-    val_t tmp;
-    /* ../lib/standard/string.nit:197 */
-    fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-    fra.me.file = LOCATE_standard___string;
-    fra.me.line = 0;
-    fra.me.meth = LOCATE_standard___string___AbstractString___to_upper;
-    fra.me.has_broke = 0;
-    fra.me.REG_size = 1;
-    fra.me.nitni_local_ref_head = NULL;
-    fra.me.REG[0] = NIT_NULL;
-    fra.me.closure_ctx = closctx_param;
-    fra.me.closure_funs = CREG;
-    fra.me.REG[0] = p0;
-    CREG[0] = clos_fun0;
-    REGB0 = fra.me.REG[0];
-    REGB0 = CALL_standard___kernel___Char___to_upper(REGB0)(REGB0);
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(closctx->REG[1])(closctx->REG[1], REGB0);
-    stack_frame_head = fra.me.prev;
-    return;
-  }
-static const char LOCATE_standard___string___AbstractString___to_lower[] = "string::AbstractString::to_lower";
-val_t standard___string___AbstractString___to_lower(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_standard___string;
-  fra.me.line = 201;
-  fra.me.meth = LOCATE_standard___string___AbstractString___to_lower;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:206 */
-  fra.me.REG[1] = NEW_Buffer_standard___string___Buffer___with_capacity(REGB0);
-  CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___string___AbstractString___to_lower_1));
-  /* ../lib/standard/string.nit:208 */
-  fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-  void OC_standard___string___AbstractString___to_lower_1(struct stack_frame_t *closctx, val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
-    struct {struct stack_frame_t me;} fra;
-    val_t REGB0;
-    fun_t CREG[1];
-    val_t tmp;
-    /* ../lib/standard/string.nit:207 */
-    fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-    fra.me.file = LOCATE_standard___string;
-    fra.me.line = 0;
-    fra.me.meth = LOCATE_standard___string___AbstractString___to_lower;
-    fra.me.has_broke = 0;
-    fra.me.REG_size = 1;
-    fra.me.nitni_local_ref_head = NULL;
-    fra.me.REG[0] = NIT_NULL;
-    fra.me.closure_ctx = closctx_param;
-    fra.me.closure_funs = CREG;
-    fra.me.REG[0] = p0;
-    CREG[0] = clos_fun0;
-    REGB0 = fra.me.REG[0];
-    REGB0 = CALL_standard___kernel___Char___to_lower(REGB0)(REGB0);
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(closctx->REG[1])(closctx->REG[1], REGB0);
-    stack_frame_head = fra.me.prev;
-    return;
-  }
-static const char LOCATE_standard___string___AbstractString___trim[] = "string::AbstractString::trim";
-val_t standard___string___AbstractString___trim(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 REGB3;
-  val_t REGB4;
-  val_t tmp;
-        static val_t once_value_2; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 211;
-  fra.me.meth = LOCATE_standard___string___AbstractString___trim;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:218 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 218);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB1 = TAG_Bool((REGB0)==(REGB1));
-    /* ../lib/standard/string.nit:218 */
-    REGB2 = REGB1;
-  }
-  if (UNTAG_Bool(REGB2)) {
-    fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:220 */
-  REGB2 = TAG_Int(0);
-  /* ../lib/standard/string.nit:221 */
-  while(1) {
-    REGB1 = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB2);
-    /* ../lib/standard/kernel.nit:471 */
-    REGB1 = TAG_Int((unsigned char)UNTAG_Char(REGB1));
-    /* ../lib/standard/string.nit:221 */
-    REGB0 = TAG_Int(32);
-    REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB0 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:221 */
-    if (UNTAG_Bool(REGB0)) {
-      /* ../lib/standard/string.nit:222 */
-      REGB0 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB0 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
-      /* ../lib/standard/string.nit:222 */
-      REGB2 = REGB0;
-      /* ../lib/standard/string.nit:223 */
-      REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-      if (UNTAG_Bool(REGB0)) {
-      } else {
-        nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 223);
-      }
-      REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-      REGB1 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB0));
-      if (UNTAG_Bool(REGB1)) {
-      } else {
-        /* ../lib/standard/kernel.nit:237 */
-        REGB0 = TAG_Bool((REGB2)==(REGB0));
-        /* ../lib/standard/string.nit:223 */
-        REGB1 = REGB0;
-      }
-      if (UNTAG_Bool(REGB1)) {
-        if (!once_value_2) {
-          fra.me.REG[2] = BOX_NativeString("");
-          REGB1 = TAG_Int(0);
-          fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB1);
-          once_value_2 = fra.me.REG[2];
-          register_static_object(&once_value_2);
-        } else fra.me.REG[2] = once_value_2;
-        fra.me.REG[2] = fra.me.REG[2];
-        fra.me.REG[1] = fra.me.REG[2];
-        goto label1;
-      }
-    } else {
-      /* ../lib/standard/string.nit:221 */
-      goto label3;
-    }
-  }
-  label3: while(0);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:226 */
-  REGB0 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:227 */
-  while(1) {
-    REGB1 = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
-    /* ../lib/standard/kernel.nit:471 */
-    REGB1 = TAG_Int((unsigned char)UNTAG_Char(REGB1));
-    /* ../lib/standard/string.nit:227 */
-    REGB3 = TAG_Int(32);
-    REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB4)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB3));
-    /* ../lib/standard/string.nit:227 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:228 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:228 */
-      REGB0 = REGB3;
-      /* ../lib/standard/string.nit:229 */
-      REGB3 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB2));
-      if (UNTAG_Bool(REGB3)) {
-      } else {
-        /* ../lib/standard/kernel.nit:237 */
-        REGB1 = TAG_Bool((REGB0)==(REGB2));
-        /* ../lib/standard/string.nit:229 */
-        REGB3 = REGB1;
-      }
-      if (UNTAG_Bool(REGB3)) {
-        REGB3 = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB2);
-        fra.me.REG[2] = CALL_standard___string___Object___to_s(REGB3)(REGB3);
-        fra.me.REG[1] = fra.me.REG[2];
-        goto label1;
-      }
-    } else {
-      /* ../lib/standard/string.nit:227 */
-      goto label4;
-    }
-  }
-  label4: while(0);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:231 */
-  REGB3 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:231 */
-  fra.me.REG[0] = CALL_standard___string___AbstractString___substring(fra.me.REG[0])(fra.me.REG[0], REGB2, REGB3);
-  fra.me.REG[1] = fra.me.REG[0];
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___AbstractString___output[] = "string::AbstractString::(kernel::Object::output)";
-void standard___string___AbstractString___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 tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 234;
-  fra.me.meth = LOCATE_standard___string___AbstractString___output;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:236 */
-  REGB0 = TAG_Int(0);
-  /* ../lib/standard/string.nit:237 */
-  while(1) {
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:237 */
-    if (UNTAG_Bool(REGB1)) {
-      /* ../lib/standard/string.nit:238 */
-      REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-      if (UNTAG_Bool(REGB1)) {
-      } else {
-        nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 238);
-      }
-      fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-      /* ../lib/standard/string.nit:970 */
-      REGB1 = TAG_Char(UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB0)]);
-      /* ../lib/standard/kernel.nit:436 */
-      printf("%c", (unsigned char)UNTAG_Char(REGB1));;
-      /* ../lib/standard/string.nit:239 */
-      REGB1 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:239 */
-      REGB0 = REGB1;
-    } else {
-      /* ../lib/standard/string.nit:237 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___String___index_from[] = "string::String::index_from";
-val_t standard___string___String___index_from(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_standard___string;
-  fra.me.line = 252;
-  fra.me.meth = LOCATE_standard___string___String___index_from;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:252 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 252);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___String___index_to[] = "string::String::index_to";
-val_t standard___string___String___index_to(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_standard___string;
-  fra.me.line = 255;
-  fra.me.meth = LOCATE_standard___string___String___index_to;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:255 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 255);
-  }
-  REGB0 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___String_____bra[] = "string::String::(abstract_collection::SequenceRead::[])";
-val_t standard___string___String_____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 REGB3;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 262;
-  fra.me.meth = LOCATE_standard___string___String_____bra;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:263 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:263 */
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 263);
-  }
-  /* ../lib/standard/string.nit:266 */
-  REGB1 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 266);
-  }
-  REGB1 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:266 */
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 266);
-  }
-  REGB2 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:241 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:266 */
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 266);
-  }
-  /* ../lib/standard/string.nit:267 */
-  REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 267);
-  }
-  fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 267);
-  }
-  REGB2 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:970 */
-  REGB2 = TAG_Char(UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB2)]);
-  /* ../lib/standard/string.nit:267 */
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB2;
-}
-static const char LOCATE_standard___string___String___substring[] = "string::String::(string::AbstractString::substring)";
-val_t standard___string___String___substring(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 REGB4;
-  val_t tmp;
-    static val_t once_value_2; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 270;
-  fra.me.meth = LOCATE_standard___string___String___substring;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  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;
-  /* ../lib/standard/string.nit:272 */
-  REGB2 = TAG_Int(0);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB1)>=UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:272 */
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 272);
-  }
-  /* ../lib/standard/string.nit:274 */
-  REGB2 = TAG_Int(0);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:274 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/kernel.nit:245 */
-    REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:275 */
-    REGB1 = REGB2;
-    /* ../lib/standard/string.nit:276 */
-    REGB2 = TAG_Int(0);
-    REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
-    /* ../lib/standard/string.nit:276 */
-    if (UNTAG_Bool(REGB2)) {
-      REGB2 = TAG_Int(0);
-      REGB1 = REGB2;
-    }
-    /* ../lib/standard/string.nit:277 */
-    REGB2 = TAG_Int(0);
-    REGB0 = REGB2;
-  }
-  /* ../lib/standard/string.nit:280 */
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 280);
-  }
-  REGB2 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
-  REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:282 */
-  REGB3 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 282);
-  }
-  REGB3 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB4)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB3 = TAG_Bool(UNTAG_Int(REGB2)>UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:282 */
-  if (UNTAG_Bool(REGB3)) {
-    REGB3 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 282);
-    }
-    REGB3 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-    REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 282);
-    }
-    fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-    fra.me.REG[1] = NEW_String_standard___string___String___from_substring(REGB0, REGB3, fra.me.REG[1]);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:284 */
-  REGB3 = TAG_Int(0);
-  REGB2 = TAG_Bool(IS_EQUAL_OO(REGB1,REGB3));
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB3 = TAG_Bool((REGB1)==(REGB3));
-    /* ../lib/standard/string.nit:284 */
-    REGB2 = REGB3;
-  }
-  if (UNTAG_Bool(REGB2)) {
-    if (!once_value_2) {
-      fra.me.REG[2] = BOX_NativeString("");
-      REGB2 = TAG_Int(0);
-      fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB2);
-      once_value_2 = fra.me.REG[2];
-      register_static_object(&once_value_2);
-    } else fra.me.REG[2] = once_value_2;
-    fra.me.REG[2] = fra.me.REG[2];
-    fra.me.REG[1] = fra.me.REG[2];
-    goto label1;
-  }
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:286 */
-  REGB2 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:286 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 286);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  fra.me.REG[0] = NEW_String_standard___string___String___from_substring(REGB0, REGB2, fra.me.REG[0]);
-  fra.me.REG[1] = fra.me.REG[0];
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___String___substring_from[] = "string::String::(string::AbstractString::substring_from)";
-val_t standard___string___String___substring_from(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;
-    static val_t once_value_1; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 289;
-  fra.me.meth = LOCATE_standard___string___String___substring_from;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:291 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 291);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:291 */
-  if (UNTAG_Bool(REGB1)) {
-    if (!once_value_1) {
-      fra.me.REG[1] = BOX_NativeString("");
-      REGB1 = TAG_Int(0);
-      fra.me.REG[1] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[1])(fra.me.REG[1], REGB1);
-      once_value_1 = fra.me.REG[1];
-      register_static_object(&once_value_1);
-    } else fra.me.REG[1] = once_value_1;
-    fra.me.REG[1] = fra.me.REG[1];
-    goto label2;
-  }
-  /* ../lib/standard/string.nit:292 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:292 */
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Int(0);
-    REGB0 = REGB1;
-  }
-  /* ../lib/standard/string.nit:293 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 293);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___AbstractString___substring(fra.me.REG[0])(fra.me.REG[0], REGB0, REGB1);
-  fra.me.REG[1] = fra.me.REG[0];
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___String___has_substring[] = "string::String::(string::AbstractString::has_substring)";
-val_t standard___string___String___has_substring(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 REGB3;
-  val_t REGB4;
-  val_t REGB5;
-  val_t REGB6;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 296;
-  fra.me.meth = LOCATE_standard___string___String___has_substring;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 4;
-  fra.me.nitni_local_ref_head = NULL;
-  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 = p2;
-  /* ../lib/standard/string.nit:298 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 298);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  REGB2 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
-  /* ../lib/standard/kernel.nit:245 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:301 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 301);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:303 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 303);
-  }
-  fra.me.REG[3] = ATTR_standard___string___AbstractString____items(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:305 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 305);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB3 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:305 */
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-  } else {
-    REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:244 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB2)>UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:305 */
-    REGB1 = REGB3;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(0);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:307 */
-  REGB3 = CALL_standard___string___String___index_from(fra.me.REG[1])(fra.me.REG[1]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB4 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:308 */
-  REGB2 = REGB4;
-  /* ../lib/standard/string.nit:309 */
-  REGB4 = CALL_standard___string___String___index_from(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB4 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB4));
-  /* ../lib/standard/string.nit:309 */
-  REGB0 = REGB4;
-  /* ../lib/standard/string.nit:311 */
-  while(1) {
-    REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB4)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:243 */
-    REGB4 = TAG_Bool(UNTAG_Int(REGB2)>=UNTAG_Int(REGB3));
-    /* ../lib/standard/string.nit:311 */
-    if (UNTAG_Bool(REGB4)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB4 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB0)]);
-      REGB5 = TAG_Char(UNBOX_NativeString(fra.me.REG[3])[UNTAG_Int(REGB2)]);
-      /* ../lib/standard/string.nit:312 */
-      REGB6 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB5));
-      if (UNTAG_Bool(REGB6)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB5 = TAG_Bool((REGB4)==(REGB5));
-        /* ../lib/standard/string.nit:312 */
-        REGB6 = REGB5;
-      }
-      REGB6 = TAG_Bool(!UNTAG_Bool(REGB6));
-      if (UNTAG_Bool(REGB6)) {
-        REGB6 = TAG_Bool(0);
-        REGB1 = REGB6;
-        goto label1;
-      }
-      /* ../lib/standard/string.nit:313 */
-      REGB6 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB6 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB6));
-      /* ../lib/standard/string.nit:313 */
-      REGB0 = REGB6;
-      /* ../lib/standard/string.nit:314 */
-      REGB6 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB6 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB6));
-      /* ../lib/standard/string.nit:314 */
-      REGB2 = REGB6;
-    } else {
-      /* ../lib/standard/string.nit:311 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:317 */
-  REGB2 = TAG_Bool(1);
-  REGB1 = REGB2;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB1;
-}
-static const char LOCATE_standard___string___String___to_upper[] = "string::String::(string::AbstractString::to_upper)";
-val_t standard___string___String___to_upper(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 REGB3;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 320;
-  fra.me.meth = LOCATE_standard___string___String___to_upper;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:322 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 322);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB1) * sizeof(char))));
-  /* ../lib/standard/string.nit:323 */
-  REGB1 = TAG_Int(0);
-  /* ../lib/standard/string.nit:325 */
-  REGB0 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 325);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:326 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 326);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:327 */
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 327);
-  }
-  REGB2 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:329 */
-  while(1) {
-    REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB0)<=UNTAG_Int(REGB2));
-    /* ../lib/standard/string.nit:329 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB3 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB0)]);
-      /* ../lib/standard/string.nit:330 */
-      REGB3 = CALL_standard___kernel___Char___to_upper(REGB3)(REGB3);
-      /* ../lib/standard/string.nit:971 */
-      UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB1)]=UNTAG_Char(REGB3);;
-      /* ../lib/standard/string.nit:331 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:331 */
-      REGB1 = REGB3;
-      /* ../lib/standard/string.nit:332 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:332 */
-      REGB0 = REGB3;
-    } else {
-      /* ../lib/standard/string.nit:329 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:335 */
-  REGB1 = TAG_Char('\0');
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB0)]=UNTAG_Char(REGB1);;
-  /* ../lib/standard/string.nit:337 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 337);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  fra.me.REG[1] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[1])(fra.me.REG[1], REGB1);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___String___to_lower[] = "string::String::(string::AbstractString::to_lower)";
-val_t standard___string___String___to_lower(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 REGB3;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 340;
-  fra.me.meth = LOCATE_standard___string___String___to_lower;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:342 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 342);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB1) * sizeof(char))));
-  /* ../lib/standard/string.nit:343 */
-  REGB1 = TAG_Int(0);
-  /* ../lib/standard/string.nit:345 */
-  REGB0 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 345);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:346 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 346);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:347 */
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 347);
-  }
-  REGB2 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:349 */
-  while(1) {
-    REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB0)<=UNTAG_Int(REGB2));
-    /* ../lib/standard/string.nit:349 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB3 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB0)]);
-      /* ../lib/standard/string.nit:350 */
-      REGB3 = CALL_standard___kernel___Char___to_lower(REGB3)(REGB3);
-      /* ../lib/standard/string.nit:971 */
-      UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB1)]=UNTAG_Char(REGB3);;
-      /* ../lib/standard/string.nit:351 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:351 */
-      REGB1 = REGB3;
-      /* ../lib/standard/string.nit:352 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:352 */
-      REGB0 = REGB3;
-    } else {
-      /* ../lib/standard/string.nit:349 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:355 */
-  REGB1 = TAG_Char('\0');
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB0)]=UNTAG_Char(REGB1);;
-  /* ../lib/standard/string.nit:357 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 357);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  fra.me.REG[1] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[1])(fra.me.REG[1], REGB1);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___String___trim[] = "string::String::(string::AbstractString::trim)";
-val_t standard___string___String___trim(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 REGB3;
-  val_t REGB4;
-  val_t tmp;
-        static val_t once_value_2; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 360;
-  fra.me.meth = LOCATE_standard___string___String___trim;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:362 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 362);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB1 = TAG_Bool((REGB0)==(REGB1));
-    /* ../lib/standard/string.nit:362 */
-    REGB2 = REGB1;
-  }
-  if (UNTAG_Bool(REGB2)) {
-    fra.me.REG[1] = fra.me.REG[0];
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:364 */
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 364);
-  }
-  REGB2 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:365 */
-  while(1) {
-    REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 365);
-    }
-    fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-    /* ../lib/standard/string.nit:970 */
-    REGB1 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB2)]);
-    /* ../lib/standard/kernel.nit:471 */
-    REGB1 = TAG_Int((unsigned char)UNTAG_Char(REGB1));
-    /* ../lib/standard/string.nit:365 */
-    REGB0 = TAG_Int(32);
-    REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB0 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:365 */
-    if (UNTAG_Bool(REGB0)) {
-      /* ../lib/standard/string.nit:366 */
-      REGB0 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB0 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
-      /* ../lib/standard/string.nit:366 */
-      REGB2 = REGB0;
-      /* ../lib/standard/string.nit:367 */
-      REGB0 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-      if (UNTAG_Bool(REGB0)) {
-      } else {
-        nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 367);
-      }
-      REGB0 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-      REGB1 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:367 */
-      REGB0 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB1));
-      if (UNTAG_Bool(REGB0)) {
-      } else {
-        /* ../lib/standard/kernel.nit:237 */
-        REGB1 = TAG_Bool((REGB2)==(REGB1));
-        /* ../lib/standard/string.nit:367 */
-        REGB0 = REGB1;
-      }
-      if (UNTAG_Bool(REGB0)) {
-        if (!once_value_2) {
-          fra.me.REG[2] = BOX_NativeString("");
-          REGB0 = TAG_Int(0);
-          fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB0);
-          once_value_2 = fra.me.REG[2];
-          register_static_object(&once_value_2);
-        } else fra.me.REG[2] = once_value_2;
-        fra.me.REG[2] = fra.me.REG[2];
-        fra.me.REG[1] = fra.me.REG[2];
-        goto label1;
-      }
-    } else {
-      /* ../lib/standard/string.nit:365 */
-      goto label3;
-    }
-  }
-  label3: while(0);
-  /* ../lib/standard/string.nit:370 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 370);
-  }
-  REGB0 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:371 */
-  while(1) {
-    REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 371);
-    }
-    fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-    /* ../lib/standard/string.nit:970 */
-    REGB1 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB0)]);
-    /* ../lib/standard/kernel.nit:471 */
-    REGB1 = TAG_Int((unsigned char)UNTAG_Char(REGB1));
-    /* ../lib/standard/string.nit:371 */
-    REGB3 = TAG_Int(32);
-    REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB4)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB3));
-    /* ../lib/standard/string.nit:371 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:372 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:372 */
-      REGB0 = REGB3;
-      /* ../lib/standard/string.nit:373 */
-      REGB3 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB2));
-      if (UNTAG_Bool(REGB3)) {
-      } else {
-        /* ../lib/standard/kernel.nit:237 */
-        REGB1 = TAG_Bool((REGB0)==(REGB2));
-        /* ../lib/standard/string.nit:373 */
-        REGB3 = REGB1;
-      }
-      if (UNTAG_Bool(REGB3)) {
-        REGB3 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-        if (UNTAG_Bool(REGB3)) {
-        } else {
-          nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 373);
-        }
-        fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-        /* ../lib/standard/string.nit:970 */
-        REGB3 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB2)]);
-        /* ../lib/standard/string.nit:373 */
-        fra.me.REG[2] = CALL_standard___string___Object___to_s(REGB3)(REGB3);
-        fra.me.REG[1] = fra.me.REG[2];
-        goto label1;
-      }
-    } else {
-      /* ../lib/standard/string.nit:371 */
-      goto label4;
-    }
-  }
-  label4: while(0);
-  /* ../lib/standard/string.nit:375 */
-  REGB3 = CALL_standard___string___String___index_from(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:375 */
-  REGB2 = REGB3;
-  /* ../lib/standard/string.nit:376 */
-  REGB3 = CALL_standard___string___String___index_from(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:376 */
-  REGB0 = REGB3;
-  /* ../lib/standard/kernel.nit:247 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:377 */
-  REGB3 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:377 */
-  fra.me.REG[0] = CALL_standard___string___AbstractString___substring(fra.me.REG[0])(fra.me.REG[0], REGB2, REGB3);
-  fra.me.REG[1] = fra.me.REG[0];
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___String___output[] = "string::String::(kernel::Object::output)";
-void standard___string___String___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 tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 380;
-  fra.me.meth = LOCATE_standard___string___String___output;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:382 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 382);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:383 */
-  REGB1 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 383);
-  }
-  REGB1 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:384 */
-  while(1) {
-    REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<=UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:384 */
-    if (UNTAG_Bool(REGB2)) {
-      /* ../lib/standard/string.nit:385 */
-      REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-      if (UNTAG_Bool(REGB2)) {
-      } else {
-        nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 385);
-      }
-      fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-      /* ../lib/standard/string.nit:970 */
-      REGB2 = TAG_Char(UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB0)]);
-      /* ../lib/standard/kernel.nit:436 */
-      printf("%c", (unsigned char)UNTAG_Char(REGB2));;
-      /* ../lib/standard/string.nit:386 */
-      REGB2 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
-      /* ../lib/standard/string.nit:386 */
-      REGB0 = REGB2;
-    } else {
-      /* ../lib/standard/string.nit:384 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___String___from_substring[] = "string::String::from_substring";
-void standard___string___String___from_substring(val_t p0, val_t p1, val_t p2, val_t p3, int* init_table){
-  int itpos0 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___string___String].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[itpos0]) return;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 394;
-  fra.me.meth = LOCATE_standard___string___String___from_substring;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  REGB1 = p2;
-  fra.me.REG[1] = p3;
-  /* ../lib/standard/string.nit:402 */
-  ATTR_standard___string___AbstractString____items(fra.me.REG[0]) = fra.me.REG[1];
-  /* ../lib/standard/string.nit:403 */
-  ATTR_standard___string___String____index_from(fra.me.REG[0]) = REGB0;
-  /* ../lib/standard/string.nit:404 */
-  ATTR_standard___string___String____index_to(fra.me.REG[0]) = REGB1;
-  /* ../lib/standard/kernel.nit:247 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:405 */
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:405 */
-  ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]) = REGB1;
-  stack_frame_head = fra.me.prev;
-  init_table[itpos0] = 1;
-  return;
-}
-static const char LOCATE_standard___string___String___with_infos[] = "string::String::with_infos";
-void standard___string___String___with_infos(val_t p0, val_t p1, val_t p2, val_t p3, val_t p4, int* init_table){
-  int itpos1 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___string___String].i;
-  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t REGB2;
-  val_t tmp;
-  if (init_table[itpos1]) return;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 408;
-  fra.me.meth = LOCATE_standard___string___String___with_infos;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  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 = p3;
-  REGB2 = p4;
-  /* ../lib/standard/string.nit:410 */
-  ATTR_standard___string___AbstractString____items(fra.me.REG[0]) = fra.me.REG[1];
-  /* ../lib/standard/string.nit:411 */
-  ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
-  /* ../lib/standard/string.nit:412 */
-  ATTR_standard___string___String____index_from(fra.me.REG[0]) = REGB1;
-  /* ../lib/standard/string.nit:413 */
-  ATTR_standard___string___String____index_to(fra.me.REG[0]) = REGB2;
-  stack_frame_head = fra.me.prev;
-  init_table[itpos1] = 1;
-  return;
-}
-static const char LOCATE_standard___string___String___to_cstring[] = "string::String::to_cstring";
-val_t standard___string___String___to_cstring(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 REGB3;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 416;
-  fra.me.meth = LOCATE_standard___string___String___to_cstring;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:419 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 419);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:419 */
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-  } else {
-    REGB0 = TAG_Bool(ATTR_standard___string___String____index_to(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB0)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_index_to", LOCATE_standard___string, 419);
-    }
-    REGB0 = ATTR_standard___string___String____index_to(fra.me.REG[0]);
-    fra.me.REG[1] = CALL_standard___string___AbstractString___items(fra.me.REG[0])(fra.me.REG[0]);
-    REGB2 = CALL_standard___string___NativeString___cstring_length(fra.me.REG[1])(fra.me.REG[1]);
-    REGB3 = TAG_Int(1);
-    /* ../lib/standard/kernel.nit:247 */
-    REGB3 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB3));
-    /* ../lib/standard/string.nit:419 */
-    REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB3));
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      /* ../lib/standard/kernel.nit:237 */
-      REGB3 = TAG_Bool((REGB0)==(REGB3));
-      /* ../lib/standard/string.nit:419 */
-      REGB2 = REGB3;
-    }
-    REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
-    REGB1 = REGB2;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    /* ../lib/standard/string.nit:420 */
-    REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 420);
-    }
-    REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    REGB2 = TAG_Int(1);
-    /* ../lib/standard/kernel.nit:245 */
-    REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
-    /* ../lib/standard/string.nit:1007 */
-    fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB2) * sizeof(char))));
-    /* ../lib/standard/string.nit:421 */
-    fra.me.REG[2] = CALL_standard___string___AbstractString___items(fra.me.REG[0])(fra.me.REG[0]);
-    REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 421);
-    }
-    REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    REGB1 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 421);
-    }
-    REGB1 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-    REGB3 = TAG_Int(0);
-    /* ../lib/standard/string.nit:972 */
-    (void)memcpy(UNBOX_NativeString(fra.me.REG[1])+UNTAG_Int(REGB3), UNBOX_NativeString(fra.me.REG[2])+UNTAG_Int(REGB1), UNTAG_Int(REGB2));;
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB3 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB3 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    /* ../lib/standard/string.nit:422 */
-    REGB1 = TAG_Char('\0');
-    /* ../lib/standard/string.nit:971 */
-    UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB3)]=UNTAG_Char(REGB1);;
-    /* ../lib/standard/string.nit:423 */
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:425 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 425);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  fra.me.REG[1] = fra.me.REG[0];
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___String_____eqeq[] = "string::String::(kernel::Object::==)";
-val_t standard___string___String_____eqeq(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 REGB4;
-  val_t REGB5;
-  val_t REGB6;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 428;
-  fra.me.meth = LOCATE_standard___string___String_____eqeq;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  /* ../lib/standard/string.nit:430 */
-  REGB0 = TAG_Bool((fra.me.REG[1]!=NIT_NULL) && VAL_ISA(fra.me.REG[1], COLOR_standard___string___String, ID_standard___string___String)) /*cast String*/;
-  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-  if (UNTAG_Bool(REGB0)) {
-    REGB0 = TAG_Bool(1);
-  } else {
-    REGB1 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
-    REGB0 = REGB1;
-  }
-  if (UNTAG_Bool(REGB0)) {
-    REGB0 = TAG_Bool(0);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:432 */
-  REGB1 = CALL_standard___kernel___Object___object_id(fra.me.REG[0])(fra.me.REG[0]);
-  REGB2 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-    nit_abort("Reciever is null", NULL, LOCATE_standard___string, 432);
-  }
-  REGB2 = CALL_standard___kernel___Object___object_id(fra.me.REG[1])(fra.me.REG[1]);
-  REGB3 = TAG_Bool(IS_EQUAL_OO(REGB1,REGB2));
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB2 = TAG_Bool((REGB1)==(REGB2));
-    /* ../lib/standard/string.nit:432 */
-    REGB3 = REGB2;
-  }
-  if (UNTAG_Bool(REGB3)) {
-    REGB3 = TAG_Bool(1);
-    REGB0 = REGB3;
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:434 */
-  REGB3 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 434);
-  }
-  REGB3 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:436 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 436);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  REGB1 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB3));
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB2 = TAG_Bool((REGB2)==(REGB3));
-    /* ../lib/standard/string.nit:436 */
-    REGB1 = REGB2;
-  }
-  REGB1 = TAG_Bool(!UNTAG_Bool(REGB1));
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(0);
-    REGB0 = REGB1;
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:438 */
-  REGB1 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 438);
-  }
-  REGB1 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:439 */
-  REGB2 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 439);
-  }
-  REGB2 = ATTR_standard___string___String____index_from(fra.me.REG[1]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:443 */
-  REGB4 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB4)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 443);
-  }
-  fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:444 */
-  REGB4 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB4)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 444);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:446 */
-  while(1) {
-    REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB4)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB4 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB3));
-    /* ../lib/standard/string.nit:446 */
-    if (UNTAG_Bool(REGB4)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB4 = TAG_Char(UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB1)]);
-      REGB5 = TAG_Char(UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB2)]);
-      /* ../lib/standard/string.nit:447 */
-      REGB6 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB5));
-      if (UNTAG_Bool(REGB6)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB5 = TAG_Bool((REGB4)==(REGB5));
-        /* ../lib/standard/string.nit:447 */
-        REGB6 = REGB5;
-      }
-      REGB6 = TAG_Bool(!UNTAG_Bool(REGB6));
-      if (UNTAG_Bool(REGB6)) {
-        REGB6 = TAG_Bool(0);
-        REGB0 = REGB6;
-        goto label1;
-      }
-      /* ../lib/standard/string.nit:448 */
-      REGB6 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB6 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB6));
-      /* ../lib/standard/string.nit:448 */
-      REGB1 = REGB6;
-      /* ../lib/standard/string.nit:449 */
-      REGB6 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB6 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB6));
-      /* ../lib/standard/string.nit:449 */
-      REGB2 = REGB6;
-    } else {
-      /* ../lib/standard/string.nit:446 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:452 */
-  REGB2 = TAG_Bool(1);
-  REGB0 = REGB2;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___String_____l[] = "string::String::(kernel::Comparable::<)";
-val_t standard___string___String_____l(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 REGB5;
-  val_t REGB6;
-  val_t REGB7;
-  val_t REGB8;
-  val_t REGB9;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 455;
-  fra.me.meth = LOCATE_standard___string___String_____l;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 4;
-  fra.me.nitni_local_ref_head = NULL;
-  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(VAL_ISA(fra.me.REG[1], VTCOLOR_standard___kernel___Comparable___OTHER(fra.me.REG[0]), VTID_standard___kernel___Comparable___OTHER(fra.me.REG[0]))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___string, 0);
-  }
-  /* ../lib/standard/string.nit:460 */
-  REGB0 = CALL_standard___kernel___Object___object_id(fra.me.REG[0])(fra.me.REG[0]);
-  REGB1 = CALL_standard___kernel___Object___object_id(fra.me.REG[1])(fra.me.REG[1]);
-  REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB1 = TAG_Bool((REGB0)==(REGB1));
-    /* ../lib/standard/string.nit:460 */
-    REGB2 = REGB1;
-  }
-  if (UNTAG_Bool(REGB2)) {
-    REGB2 = TAG_Bool(0);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:465 */
-  REGB1 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 465);
-  }
-  REGB1 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:466 */
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 466);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:468 */
-  REGB3 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 468);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:469 */
-  REGB3 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 469);
-  }
-  fra.me.REG[3] = ATTR_standard___string___AbstractString____items(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:471 */
-  REGB3 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 471);
-  }
-  REGB3 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:472 */
-  REGB4 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB4)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 472);
-  }
-  REGB4 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB5 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:476 */
-  while(1) {
-    REGB6 = TAG_Bool(VAL_ISA(REGB5, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB6)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB6 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB5));
-    /* ../lib/standard/string.nit:476 */
-    if (UNTAG_Bool(REGB6)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB6 = TAG_Char(UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB1)]);
-      REGB7 = TAG_Char(UNBOX_NativeString(fra.me.REG[3])[UNTAG_Int(REGB0)]);
-      /* ../lib/standard/string.nit:480 */
-      REGB8 = TAG_Bool(IS_EQUAL_OO(REGB6,REGB7));
-      if (UNTAG_Bool(REGB8)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB9 = TAG_Bool((REGB6)==(REGB7));
-        /* ../lib/standard/string.nit:480 */
-        REGB8 = REGB9;
-      }
-      REGB8 = TAG_Bool(!UNTAG_Bool(REGB8));
-      if (UNTAG_Bool(REGB8)) {
-        REGB8 = TAG_Bool(VAL_ISA(REGB7, VTCOLOR_standard___kernel___Comparable___OTHER(REGB6), VTID_standard___kernel___Comparable___OTHER(REGB6))) /*cast OTHER*/;
-        if (UNTAG_Bool(REGB8)) {
-        } else {
-          nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-        }
-        /* ../lib/standard/kernel.nit:439 */
-        REGB7 = TAG_Bool(UNTAG_Char(REGB6)<UNTAG_Char(REGB7));
-        /* ../lib/standard/string.nit:481 */
-        if (UNTAG_Bool(REGB7)) {
-          REGB7 = TAG_Bool(1);
-          REGB2 = REGB7;
-          goto label1;
-        }
-        /* ../lib/standard/string.nit:482 */
-        REGB7 = TAG_Bool(0);
-        REGB2 = REGB7;
-        goto label1;
-      }
-      /* ../lib/standard/string.nit:485 */
-      REGB7 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB7 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB7));
-      /* ../lib/standard/string.nit:485 */
-      REGB1 = REGB7;
-      /* ../lib/standard/string.nit:486 */
-      REGB7 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB7 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB7));
-      /* ../lib/standard/string.nit:486 */
-      REGB0 = REGB7;
-    } else {
-      /* ../lib/standard/string.nit:476 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  REGB0 = TAG_Bool(VAL_ISA(REGB4, VTCOLOR_standard___kernel___Comparable___OTHER(REGB3), VTID_standard___kernel___Comparable___OTHER(REGB3))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB4 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB4));
-  /* ../lib/standard/string.nit:489 */
-  REGB2 = REGB4;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB2;
-}
-static const char LOCATE_standard___string___String_____plus[] = "string::String::+";
-val_t standard___string___String_____plus(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_standard___string;
-  fra.me.line = 492;
-  fra.me.meth = LOCATE_standard___string___String_____plus;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 4;
-  fra.me.nitni_local_ref_head = NULL;
-  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;
-  /* ../lib/standard/string.nit:497 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 497);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:498 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 498);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:502 */
-  REGB4 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB4));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[2] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB4) * sizeof(char))));
-  /* ../lib/standard/string.nit:504 */
-  REGB4 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB4)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 504);
-  }
-  fra.me.REG[3] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  REGB4 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB4)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 504);
-  }
-  REGB4 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  REGB3 = TAG_Int(0);
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[2])+UNTAG_Int(REGB3), UNBOX_NativeString(fra.me.REG[3])+UNTAG_Int(REGB4), UNTAG_Int(REGB0));;
-  /* ../lib/standard/string.nit:505 */
-  REGB3 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 505);
-  }
-  fra.me.REG[3] = ATTR_standard___string___AbstractString____items(fra.me.REG[1]);
-  REGB3 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 505);
-  }
-  REGB3 = ATTR_standard___string___String____index_from(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[2])+UNTAG_Int(REGB0), UNBOX_NativeString(fra.me.REG[3])+UNTAG_Int(REGB3), UNTAG_Int(REGB1));;
-  /* ../lib/standard/string.nit:507 */
-  REGB0 = TAG_Char('\0');
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[2])[UNTAG_Int(REGB2)]=UNTAG_Char(REGB0);;
-  /* ../lib/standard/string.nit:509 */
-  fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB2);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[2];
-}
-static const char LOCATE_standard___string___String_____star[] = "string::String::*";
-val_t standard___string___String_____star(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 REGB4;
-  val_t REGB5;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 512;
-  fra.me.meth = LOCATE_standard___string___String_____star;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:519 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:519 */
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 519);
-  }
-  /* ../lib/standard/string.nit:521 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 521);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:248 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB1)*UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:525 */
-  REGB3 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 525);
-  }
-  fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:527 */
-  REGB3 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[0] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB3) * sizeof(char))));
-  /* ../lib/standard/string.nit:529 */
-  REGB3 = TAG_Char('\0');
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB2)]=UNTAG_Char(REGB3);;
-  /* ../lib/standard/string.nit:531 */
-  REGB3 = TAG_Int(0);
-  /* ../lib/standard/string.nit:533 */
-  REGB4 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:393 */
-  while(1) {
-    REGB5 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB4), VTID_standard___kernel___Comparable___OTHER(REGB4))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB5)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB5 = TAG_Bool(UNTAG_Int(REGB4)<=UNTAG_Int(REGB0));
-    /* ../lib/standard/kernel.nit:393 */
-    if (UNTAG_Bool(REGB5)) {
-      /* ../lib/standard/string.nit:534 */
-      REGB5 = TAG_Int(0);
-      /* ../lib/standard/string.nit:972 */
-      (void)memcpy(UNBOX_NativeString(fra.me.REG[0])+UNTAG_Int(REGB3), UNBOX_NativeString(fra.me.REG[1])+UNTAG_Int(REGB5), UNTAG_Int(REGB1));;
-      /* ../lib/standard/kernel.nit:245 */
-      REGB5 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:535 */
-      REGB3 = REGB5;
-      /* ../lib/standard/kernel.nit:395 */
-      REGB5 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB5 = TAG_Int(UNTAG_Int(REGB4)+UNTAG_Int(REGB5));
-      /* ../lib/standard/kernel.nit:395 */
-      REGB4 = REGB5;
-    } else {
-      /* ../lib/standard/kernel.nit:393 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  /* ../lib/standard/string.nit:538 */
-  fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB2);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___String___to_s[] = "string::String::(string::Object::to_s)";
-val_t standard___string___String___to_s(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_standard___string;
-  fra.me.line = 541;
-  fra.me.meth = LOCATE_standard___string___String___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:541 */
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___String___hash[] = "string::String::(hash::Object::hash)";
-val_t standard___string___String___hash(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 REGB4;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 543;
-  fra.me.meth = LOCATE_standard___string___String___hash;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:546 */
-  REGB0 = TAG_Int(5381);
-  /* ../lib/standard/string.nit:547 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 547);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB2 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:549 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 549);
-  }
-  fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:550 */
-  REGB1 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 550);
-  }
-  REGB1 = ATTR_standard___string___String____index_from(fra.me.REG[0]);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB3 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:552 */
-  REGB2 = REGB3;
-  /* ../lib/standard/string.nit:554 */
-  while(1) {
-    REGB3 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:243 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB2)>=UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:554 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:555 */
-      REGB3 = TAG_Int(32);
-      /* ../lib/standard/kernel.nit:248 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)*UNTAG_Int(REGB3));
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB0));
-      /* ../lib/standard/string.nit:555 */
-      REGB4 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-      if (UNTAG_Bool(REGB4)) {
-      } else {
-        nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 555);
-      }
-      fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-      /* ../lib/standard/string.nit:970 */
-      REGB4 = TAG_Char(UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB2)]);
-      /* ../lib/standard/kernel.nit:471 */
-      REGB4 = TAG_Int((unsigned char)UNTAG_Char(REGB4));
-      /* ../lib/standard/kernel.nit:245 */
-      REGB4 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB4));
-      /* ../lib/standard/string.nit:555 */
-      REGB0 = REGB4;
-      /* ../lib/standard/string.nit:556 */
-      REGB4 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB4 = TAG_Int(UNTAG_Int(REGB2)-UNTAG_Int(REGB4));
-      /* ../lib/standard/string.nit:556 */
-      REGB2 = REGB4;
-    } else {
-      /* ../lib/standard/string.nit:554 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  /* ../lib/standard/string.nit:559 */
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___Buffer_____braeq[] = "string::Buffer::(abstract_collection::Sequence::[]=)";
-void standard___string___Buffer_____braeq(val_t p0, val_t p1, val_t p2){
-  struct {struct stack_frame_t me;} 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_standard___string;
-  fra.me.line = 572;
-  fra.me.meth = LOCATE_standard___string___Buffer_____braeq;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  REGB1 = p2;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:574 */
-  REGB3 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB2));
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB2 = TAG_Bool((REGB0)==(REGB2));
-    /* ../lib/standard/string.nit:574 */
-    REGB3 = REGB2;
-  }
-  if (UNTAG_Bool(REGB3)) {
-    /* ../lib/standard/string.nit:575 */
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[0])(fra.me.REG[0], REGB1);
-    /* ../lib/standard/string.nit:576 */
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:578 */
-  REGB3 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB3 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB3));
-  /* ../lib/standard/string.nit:578 */
-  if (UNTAG_Bool(REGB3)) {
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB3 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB3 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    REGB2 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB3));
-  } else {
-    /* ../lib/standard/string.nit:578 */
-    REGB2 = TAG_Bool(0);
-    REGB3 = REGB2;
-  }
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 578);
-  }
-  /* ../lib/standard/string.nit:579 */
-  REGB3 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 579);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB0)]=UNTAG_Char(REGB1);;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___Buffer___add[] = "string::Buffer::(abstract_collection::SimpleCollection::add)";
-void standard___string___Buffer___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 REGB2;
-  val_t REGB3;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 582;
-  fra.me.meth = LOCATE_standard___string___Buffer___add;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:584 */
-  REGB1 = TAG_Bool(ATTR_standard___string___Buffer____capacity(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_capacity", LOCATE_standard___string, 584);
-  }
-  REGB1 = ATTR_standard___string___Buffer____capacity(fra.me.REG[0]);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:241 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:584 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-    /* ../lib/standard/string.nit:584 */
-    REGB1 = TAG_Int(5);
-    /* ../lib/standard/kernel.nit:245 */
-    REGB1 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:584 */
-    CALL_standard___collection___array___AbstractArray___enlarge(fra.me.REG[0])(fra.me.REG[0], REGB1);
-  }
-  /* ../lib/standard/string.nit:585 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 585);
-  }
-  fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB1)]=UNTAG_Char(REGB0);;
-  /* ../lib/standard/string.nit:586 */
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:586 */
-  ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]) = REGB1;
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___Buffer___enlarge[] = "string::Buffer::(array::AbstractArray::enlarge)";
-void standard___string___Buffer___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_standard___string;
-  fra.me.line = 589;
-  fra.me.meth = LOCATE_standard___string___Buffer___enlarge;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  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;
-  /* ../lib/standard/string.nit:591 */
-  REGB1 = TAG_Bool(ATTR_standard___string___Buffer____capacity(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_capacity", LOCATE_standard___string, 591);
-  }
-  REGB1 = ATTR_standard___string___Buffer____capacity(fra.me.REG[0]);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:241 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB0)<=UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:592 */
-  if (UNTAG_Bool(REGB2)) {
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:593 */
-  while(1) {
-    REGB2 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:593 */
-    if (UNTAG_Bool(REGB2)) {
-      REGB2 = TAG_Int(2);
-      /* ../lib/standard/kernel.nit:248 */
-      REGB2 = TAG_Int(UNTAG_Int(REGB1)*UNTAG_Int(REGB2));
-      /* ../lib/standard/string.nit:593 */
-      REGB3 = TAG_Int(2);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:593 */
-      REGB1 = REGB3;
-    } else {
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:594 */
-  REGB0 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB0 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB0) * sizeof(char))));
-  /* ../lib/standard/string.nit:595 */
-  REGB0 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 595);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:595 */
-  REGB3 = TAG_Int(0);
-  REGB2 = TAG_Int(0);
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[1])+UNTAG_Int(REGB2), UNBOX_NativeString(fra.me.REG[2])+UNTAG_Int(REGB3), UNTAG_Int(REGB0));;
-  /* ../lib/standard/string.nit:596 */
-  ATTR_standard___string___AbstractString____items(fra.me.REG[0]) = fra.me.REG[1];
-  /* ../lib/standard/string.nit:597 */
-  ATTR_standard___string___Buffer____capacity(fra.me.REG[0]) = REGB1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___Buffer___append[] = "string::Buffer::(abstract_collection::Sequence::append)";
-void standard___string___Buffer___append(val_t p0, val_t p1){
-  struct {struct stack_frame_t me; val_t MORE_REG[5];} 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_standard___string;
-  fra.me.line = 600;
-  fra.me.meth = LOCATE_standard___string___Buffer___append;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 6;
-  fra.me.nitni_local_ref_head = NULL;
-  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[4] = NIT_NULL;
-  fra.me.REG[5] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  /* ../lib/standard/string.nit:600 */
-  fra.me.REG[2] = fra.me.REG[0];
-  fra.me.REG[3] = fra.me.REG[1];
-  /* ../lib/standard/string.nit:602 */
-  REGB0 = TAG_Bool(VAL_ISA(fra.me.REG[3], COLOR_standard___string___String, ID_standard___string___String)) /*cast String*/;
-  if (UNTAG_Bool(REGB0)) {
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3])!=NIT_NULL);
-    if (UNTAG_Bool(REGB0)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[3]);
-    /* ../lib/standard/string.nit:604 */
-    REGB1 = TAG_Bool(ATTR_standard___string___Buffer____capacity(fra.me.REG[2])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_capacity", LOCATE_standard___string, 604);
-    }
-    REGB1 = ATTR_standard___string___Buffer____capacity(fra.me.REG[2]);
-    REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 604);
-    }
-    REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-    /* ../lib/standard/kernel.nit:245 */
-    REGB2 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
-    REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
-    /* ../lib/standard/string.nit:604 */
-    if (UNTAG_Bool(REGB2)) {
-      REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-      if (UNTAG_Bool(REGB2)) {
-      } else {
-        nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 604);
-      }
-      REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB2 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB0));
-      /* ../lib/standard/string.nit:604 */
-      CALL_standard___collection___array___AbstractArray___enlarge(fra.me.REG[2])(fra.me.REG[2], REGB2);
-    }
-    /* ../lib/standard/string.nit:605 */
-    fra.me.REG[4] = CALL_standard___string___AbstractString___items(fra.me.REG[3])(fra.me.REG[3]);
-    REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[2])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 605);
-    }
-    fra.me.REG[5] = ATTR_standard___string___AbstractString____items(fra.me.REG[2]);
-    REGB2 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[3])!=NIT_NULL);
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 605);
-    }
-    REGB2 = ATTR_standard___string___String____index_from(fra.me.REG[3]);
-    REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 605);
-    }
-    REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-    /* ../lib/standard/string.nit:972 */
-    (void)memcpy(UNBOX_NativeString(fra.me.REG[5])+UNTAG_Int(REGB1), UNBOX_NativeString(fra.me.REG[4])+UNTAG_Int(REGB2), UNTAG_Int(REGB0));;
-    /* ../lib/standard/string.nit:606 */
-    REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-    /* ../lib/standard/kernel.nit:245 */
-    REGB0 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:606 */
-    ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]) = REGB0;
-  } else {
-    /* ../lib/standard/string.nit:608 */
-    CALL_SUPER_standard___string___Buffer___append(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
-  }
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___Buffer___to_s[] = "string::Buffer::(string::Object::to_s)";
-val_t standard___string___Buffer___to_s(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_standard___string;
-  fra.me.line = 612;
-  fra.me.meth = LOCATE_standard___string___Buffer___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:615 */
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB1) * sizeof(char))));
-  /* ../lib/standard/string.nit:616 */
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 616);
-  }
-  fra.me.REG[2] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Int(0);
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[1])+UNTAG_Int(REGB2), UNBOX_NativeString(fra.me.REG[2])+UNTAG_Int(REGB1), UNTAG_Int(REGB0));;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:619 */
-  REGB1 = TAG_Char('\0');
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB2)]=UNTAG_Char(REGB1);;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:621 */
-  fra.me.REG[1] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[1])(fra.me.REG[1], REGB1);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Buffer_____l[] = "string::Buffer::(kernel::Comparable::<)";
-val_t standard___string___Buffer_____l(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 REGB4;
-  val_t REGB5;
-  val_t REGB6;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 624;
-  fra.me.meth = LOCATE_standard___string___Buffer_____l;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  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(VAL_ISA(fra.me.REG[1], VTCOLOR_standard___kernel___Comparable___OTHER(fra.me.REG[0]), VTID_standard___kernel___Comparable___OTHER(fra.me.REG[0]))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___string, 0);
-  }
-  /* ../lib/standard/string.nit:626 */
-  REGB0 = TAG_Int(0);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:629 */
-  while(1) {
-    REGB3 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:629 */
-    if (UNTAG_Bool(REGB3)) {
-      REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB3)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:242 */
-      REGB3 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
-    } else {
-      /* ../lib/standard/string.nit:629 */
-      REGB4 = TAG_Bool(0);
-      REGB3 = REGB4;
-    }
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:630 */
-      REGB3 = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
-      /* ../lib/standard/kernel.nit:471 */
-      REGB3 = TAG_Int((unsigned char)UNTAG_Char(REGB3));
-      /* ../lib/standard/string.nit:631 */
-      REGB4 = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[1])(fra.me.REG[1], REGB0);
-      /* ../lib/standard/kernel.nit:471 */
-      REGB4 = TAG_Int((unsigned char)UNTAG_Char(REGB4));
-      REGB5 = TAG_Bool(VAL_ISA(REGB4, VTCOLOR_standard___kernel___Comparable___OTHER(REGB3), VTID_standard___kernel___Comparable___OTHER(REGB3))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB5)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:242 */
-      REGB5 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB4));
-      /* ../lib/standard/string.nit:632 */
-      if (UNTAG_Bool(REGB5)) {
-        /* ../lib/standard/string.nit:633 */
-        REGB5 = TAG_Bool(1);
-        goto label1;
-      } else {
-        REGB6 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB4), VTID_standard___kernel___Comparable___OTHER(REGB4))) /*cast OTHER*/;
-        if (UNTAG_Bool(REGB6)) {
-        } else {
-          nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-        }
-        /* ../lib/standard/kernel.nit:242 */
-        REGB3 = TAG_Bool(UNTAG_Int(REGB4)<UNTAG_Int(REGB3));
-        /* ../lib/standard/string.nit:634 */
-        if (UNTAG_Bool(REGB3)) {
-          /* ../lib/standard/string.nit:635 */
-          REGB3 = TAG_Bool(0);
-          REGB5 = REGB3;
-          goto label1;
-        }
-      }
-      /* ../lib/standard/string.nit:637 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:637 */
-      REGB0 = REGB3;
-    } else {
-      /* ../lib/standard/string.nit:629 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  REGB0 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:639 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/string.nit:640 */
-    REGB2 = TAG_Bool(1);
-    REGB5 = REGB2;
-    goto label1;
-  } else {
-    /* ../lib/standard/string.nit:642 */
-    REGB2 = TAG_Bool(0);
-    REGB5 = REGB2;
-    goto label1;
-  }
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB5;
-}
-static const char LOCATE_standard___string___Buffer___init[] = "string::Buffer::init";
-void standard___string___Buffer___init(val_t p0, int* init_table){
-  int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___string___Buffer].i;
-  struct {struct stack_frame_t me;} 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_standard___string;
-  fra.me.line = 646;
-  fra.me.meth = LOCATE_standard___string___Buffer___init;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:649 */
-  REGB0 = TAG_Int(5);
-  CALL_standard___string___Buffer___with_capacity(fra.me.REG[0])(fra.me.REG[0], REGB0, init_table);
-  stack_frame_head = fra.me.prev;
-  init_table[itpos2] = 1;
-  return;
-}
-static const char LOCATE_standard___string___Buffer___from[] = "string::Buffer::from";
-void standard___string___Buffer___from(val_t p0, val_t p1, int* init_table){
-  int itpos3 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___string___Buffer].i;
-  struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t REGB2;
-  val_t tmp;
-  if (init_table[itpos3]) return;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 652;
-  fra.me.meth = LOCATE_standard___string___Buffer___from;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 4;
-  fra.me.nitni_local_ref_head = NULL;
-  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;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:654 */
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:654 */
-  ATTR_standard___string___Buffer____capacity(fra.me.REG[0]) = REGB1;
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:655 */
-  ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]) = REGB1;
-  /* ../lib/standard/string.nit:656 */
-  REGB1 = TAG_Bool(ATTR_standard___string___Buffer____capacity(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_capacity", LOCATE_standard___string, 656);
-  }
-  REGB1 = ATTR_standard___string___Buffer____capacity(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[2] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB1) * sizeof(char))));
-  /* ../lib/standard/string.nit:656 */
-  ATTR_standard___string___AbstractString____items(fra.me.REG[0]) = fra.me.REG[2];
-  /* ../lib/standard/string.nit:657 */
-  fra.me.REG[2] = CALL_standard___string___AbstractString___items(fra.me.REG[1])(fra.me.REG[1]);
-  REGB1 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 657);
-  }
-  fra.me.REG[3] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___string, 657);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  REGB0 = TAG_Bool(ATTR_standard___string___String____index_from(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_index_from", LOCATE_standard___string, 657);
-  }
-  REGB0 = ATTR_standard___string___String____index_from(fra.me.REG[1]);
-  REGB2 = TAG_Int(0);
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[3])+UNTAG_Int(REGB2), UNBOX_NativeString(fra.me.REG[2])+UNTAG_Int(REGB0), UNTAG_Int(REGB1));;
-  stack_frame_head = fra.me.prev;
-  init_table[itpos3] = 1;
-  return;
-}
-static const char LOCATE_standard___string___Buffer___with_capacity[] = "string::Buffer::with_capacity";
-void standard___string___Buffer___with_capacity(val_t p0, val_t p1, int* init_table){
-  int itpos4 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___string___Buffer].i;
-  struct {struct stack_frame_t me; val_t MORE_REG[1];} 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_standard___string;
-  fra.me.line = 660;
-  fra.me.meth = LOCATE_standard___string___Buffer___with_capacity;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:663 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:663 */
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 663);
-  }
-  /* ../lib/standard/string.nit:665 */
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB1) * sizeof(char))));
-  /* ../lib/standard/string.nit:665 */
-  ATTR_standard___string___AbstractString____items(fra.me.REG[0]) = fra.me.REG[1];
-  /* ../lib/standard/string.nit:666 */
-  ATTR_standard___string___Buffer____capacity(fra.me.REG[0]) = REGB0;
-  /* ../lib/standard/string.nit:667 */
-  REGB0 = TAG_Int(0);
-  ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]) = REGB0;
-  stack_frame_head = fra.me.prev;
-  init_table[itpos4] = 1;
-  return;
-}
-static const char LOCATE_standard___string___Buffer_____eqeq[] = "string::Buffer::(kernel::Object::==)";
-val_t standard___string___Buffer_____eqeq(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 REGB4;
-  val_t REGB5;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 670;
-  fra.me.meth = LOCATE_standard___string___Buffer_____eqeq;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  /* ../lib/standard/string.nit:672 */
-  REGB0 = TAG_Bool((fra.me.REG[1]!=NIT_NULL) && VAL_ISA(fra.me.REG[1], COLOR_standard___string___Buffer, ID_standard___string___Buffer)) /*cast Buffer*/;
-  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-  if (UNTAG_Bool(REGB0)) {
-    REGB0 = TAG_Bool(1);
-  } else {
-    REGB1 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
-    REGB0 = REGB1;
-  }
-  if (UNTAG_Bool(REGB0)) {
-    REGB0 = TAG_Bool(0);
-    goto label1;
-  }
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:674 */
-  REGB2 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-    nit_abort("Reciever is null", NULL, LOCATE_standard___string, 674);
-  }
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:674 */
-  REGB3 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB1));
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB2 = TAG_Bool((REGB2)==(REGB1));
-    /* ../lib/standard/string.nit:674 */
-    REGB3 = REGB2;
-  }
-  REGB3 = TAG_Bool(!UNTAG_Bool(REGB3));
-  if (UNTAG_Bool(REGB3)) {
-    REGB3 = TAG_Bool(0);
-    REGB0 = REGB3;
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:675 */
-  REGB3 = TAG_Int(0);
-  /* ../lib/standard/string.nit:676 */
-  REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 676);
-  }
-  fra.me.REG[0] = ATTR_standard___string___AbstractString____items(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:677 */
-  REGB2 = TAG_Bool(ATTR_standard___string___AbstractString____items(fra.me.REG[1])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_items", LOCATE_standard___string, 677);
-  }
-  fra.me.REG[1] = ATTR_standard___string___AbstractString____items(fra.me.REG[1]);
-  /* ../lib/standard/string.nit:678 */
-  while(1) {
-    REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB3), VTID_standard___kernel___Comparable___OTHER(REGB3))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB3)<UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:678 */
-    if (UNTAG_Bool(REGB2)) {
-      /* ../lib/standard/string.nit:970 */
-      REGB2 = TAG_Char(UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB3)]);
-      REGB4 = TAG_Char(UNBOX_NativeString(fra.me.REG[1])[UNTAG_Int(REGB3)]);
-      /* ../lib/standard/string.nit:679 */
-      REGB5 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB4));
-      if (UNTAG_Bool(REGB5)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB4 = TAG_Bool((REGB2)==(REGB4));
-        /* ../lib/standard/string.nit:679 */
-        REGB5 = REGB4;
-      }
-      REGB5 = TAG_Bool(!UNTAG_Bool(REGB5));
-      if (UNTAG_Bool(REGB5)) {
-        REGB5 = TAG_Bool(0);
-        REGB0 = REGB5;
-        goto label1;
-      }
-      /* ../lib/standard/string.nit:680 */
-      REGB5 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB5 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB5));
-      /* ../lib/standard/string.nit:680 */
-      REGB3 = REGB5;
-    } else {
-      /* ../lib/standard/string.nit:678 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:682 */
-  REGB3 = TAG_Bool(1);
-  REGB0 = REGB3;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___Buffer___capacity[] = "string::Buffer::capacity";
-val_t standard___string___Buffer___capacity(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_standard___string;
-  fra.me.line = 685;
-  fra.me.meth = LOCATE_standard___string___Buffer___capacity;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:685 */
-  REGB0 = TAG_Bool(ATTR_standard___string___Buffer____capacity(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_capacity", LOCATE_standard___string, 685);
-  }
-  REGB0 = ATTR_standard___string___Buffer____capacity(fra.me.REG[0]);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___Object___to_s[] = "string::Object::to_s";
-val_t standard___string___Object___to_s(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_standard___string;
-  fra.me.line = 693;
-  fra.me.meth = LOCATE_standard___string___Object___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:694 */
-  fra.me.REG[0] = CALL_standard___string___Object___inspect(fra.me.REG[0])(fra.me.REG[0]);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Object___native_class_name[] = "string::Object::native_class_name";
-val_t standard___string___Object___native_class_name(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_standard___string;
-  fra.me.line = 696;
-  fra.me.meth = LOCATE_standard___string___Object___native_class_name;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:696 */
-  fra.me.REG[0] = BOX_NativeString(VAL2VFT(fra.me.REG[0])[2].cname);;
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Object___class_name[] = "string::Object::class_name";
-val_t standard___string___Object___class_name(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_standard___string;
-  fra.me.line = 699;
-  fra.me.meth = LOCATE_standard___string___Object___class_name;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:702 */
-  fra.me.REG[0] = CALL_standard___string___Object___native_class_name(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Object___inspect[] = "string::Object::inspect";
-val_t standard___string___Object___inspect(val_t p0){
-  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
-  val_t REGB0;
-  val_t tmp;
-  static val_t once_value_1; /* Once value */
-  static val_t once_value_2; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 704;
-  fra.me.meth = LOCATE_standard___string___Object___inspect;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:708 */
-  REGB0 = TAG_Int(3);
-  fra.me.REG[1] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
-  if (!once_value_1) {
-    fra.me.REG[2] = BOX_NativeString("<");
-    REGB0 = TAG_Int(1);
-    fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB0);
-    once_value_1 = fra.me.REG[2];
-    register_static_object(&once_value_1);
-  } else fra.me.REG[2] = once_value_1;
-  fra.me.REG[2] = fra.me.REG[2];
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
-  fra.me.REG[0] = CALL_standard___string___Object___inspect_head(fra.me.REG[0])(fra.me.REG[0]);
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
-  if (!once_value_2) {
-    fra.me.REG[0] = BOX_NativeString(">");
-    REGB0 = TAG_Int(1);
-    fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB0);
-    once_value_2 = fra.me.REG[0];
-    register_static_object(&once_value_2);
-  } else fra.me.REG[0] = once_value_2;
-  fra.me.REG[0] = fra.me.REG[0];
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
-  fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-  goto label3;
-  label3: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Object___inspect_head[] = "string::Object::inspect_head";
-val_t standard___string___Object___inspect_head(val_t p0){
-  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
-  val_t REGB0;
-  val_t tmp;
-  static val_t once_value_1; /* Once value */
-  static val_t once_value_2; /* Once value */
-  static val_t once_value_3; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 711;
-  fra.me.meth = LOCATE_standard___string___Object___inspect_head;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:715 */
-  REGB0 = TAG_Int(5);
-  fra.me.REG[1] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
-  if (!once_value_1) {
-    fra.me.REG[2] = BOX_NativeString("");
-    REGB0 = TAG_Int(0);
-    fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB0);
-    once_value_1 = fra.me.REG[2];
-    register_static_object(&once_value_1);
-  } else fra.me.REG[2] = once_value_1;
-  fra.me.REG[2] = fra.me.REG[2];
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
-  fra.me.REG[2] = CALL_standard___string___Object___class_name(fra.me.REG[0])(fra.me.REG[0]);
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
-  if (!once_value_2) {
-    fra.me.REG[2] = BOX_NativeString(":#");
-    REGB0 = TAG_Int(2);
-    fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB0);
-    once_value_2 = fra.me.REG[2];
-    register_static_object(&once_value_2);
-  } else fra.me.REG[2] = once_value_2;
-  fra.me.REG[2] = fra.me.REG[2];
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
-  REGB0 = CALL_standard___kernel___Object___object_id(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___Int___to_hex(REGB0)(REGB0);
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
-  if (!once_value_3) {
-    fra.me.REG[0] = BOX_NativeString("");
-    REGB0 = TAG_Int(0);
-    fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB0);
-    once_value_3 = fra.me.REG[0];
-    register_static_object(&once_value_3);
-  } else fra.me.REG[0] = once_value_3;
-  fra.me.REG[0] = fra.me.REG[0];
-  CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[0]);
-  fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-  goto label4;
-  label4: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Object___args[] = "string::Object::args";
-val_t standard___string___Object___args(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_standard___string;
-  fra.me.line = 718;
-  fra.me.meth = LOCATE_standard___string___Object___args;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:720 */
-  fra.me.REG[0] = CALL_standard___kernel___Object___sys(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___Object___args(fra.me.REG[0])(fra.me.REG[0]);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Bool___to_s[] = "string::Bool::(string::Object::to_s)";
-val_t standard___string___Bool___to_s(val_t p0){
-  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
-  val_t REGB0;
-  val_t tmp;
-    static val_t once_value_1; /* Once value */
-      static val_t once_value_2; /* Once value */
-    static val_t once_value_4; /* Once value */
-      static val_t once_value_5; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 725;
-  fra.me.meth = LOCATE_standard___string___Bool___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:729 */
-  if (UNTAG_Bool(REGB0)) {
-    /* ../lib/standard/string.nit:730 */
-    if (!once_value_1) {
-      if (!once_value_2) {
-        fra.me.REG[0] = BOX_NativeString("true");
-        REGB0 = TAG_Int(4);
-        fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB0);
-        once_value_2 = fra.me.REG[0];
-        register_static_object(&once_value_2);
-      } else fra.me.REG[0] = once_value_2;
-      fra.me.REG[0] = fra.me.REG[0];
-      once_value_1 = fra.me.REG[0];
-      register_static_object(&once_value_1);
-    } else fra.me.REG[0] = once_value_1;
-    fra.me.REG[0] = fra.me.REG[0];
-    goto label3;
-  } else {
-    /* ../lib/standard/string.nit:732 */
-    if (!once_value_4) {
-      if (!once_value_5) {
-        fra.me.REG[1] = BOX_NativeString("false");
-        REGB0 = TAG_Int(5);
-        fra.me.REG[1] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[1])(fra.me.REG[1], REGB0);
-        once_value_5 = fra.me.REG[1];
-        register_static_object(&once_value_5);
-      } else fra.me.REG[1] = once_value_5;
-      fra.me.REG[1] = fra.me.REG[1];
-      once_value_4 = fra.me.REG[1];
-      register_static_object(&once_value_4);
-    } else fra.me.REG[1] = once_value_4;
-    fra.me.REG[1] = fra.me.REG[1];
-    fra.me.REG[0] = fra.me.REG[1];
-    goto label3;
-  }
-  label3: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Int___fill_buffer[] = "string::Int::fill_buffer";
-void standard___string___Int___fill_buffer(val_t p0, val_t p1, val_t p2, val_t p3){
-  struct {struct stack_frame_t me;} 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_standard___string;
-  fra.me.line = 738;
-  fra.me.meth = LOCATE_standard___string___Int___fill_buffer;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  REGB0 = p0;
-  fra.me.REG[0] = p1;
-  REGB1 = p2;
-  REGB2 = p3;
-  /* ../lib/standard/string.nit:744 */
-  REGB2 = TAG_Int(0);
-  REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:242 */
-  REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:744 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/kernel.nit:246 */
-    REGB2 = TAG_Int(-UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:746 */
-    REGB3 = TAG_Int(0);
-    REGB4 = TAG_Char('-');
-    CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB3, REGB4);
-  } else {
-    /* ../lib/standard/string.nit:747 */
-    REGB4 = TAG_Int(0);
-    REGB3 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB4));
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      /* ../lib/standard/kernel.nit:237 */
-      REGB4 = TAG_Bool((REGB0)==(REGB4));
-      /* ../lib/standard/string.nit:747 */
-      REGB3 = REGB4;
-    }
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:748 */
-      REGB3 = TAG_Int(0);
-      REGB4 = TAG_Char('0');
-      CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB3, REGB4);
-      /* ../lib/standard/string.nit:749 */
-      goto label1;
-    } else {
-      /* ../lib/standard/string.nit:751 */
-      REGB2 = REGB0;
-    }
-  }
-  /* ../lib/standard/string.nit:754 */
-  REGB0 = CALL_standard___kernel___Int___digit_count(REGB0)(REGB0, REGB1);
-  REGB4 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB4 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB4));
-  /* ../lib/standard/string.nit:755 */
-  while(1) {
-    REGB0 = TAG_Int(0);
-    REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB4), VTID_standard___kernel___Comparable___OTHER(REGB4))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:243 */
-    REGB0 = TAG_Bool(UNTAG_Int(REGB4)>=UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:755 */
-    if (UNTAG_Bool(REGB0)) {
-      REGB0 = TAG_Int(0);
-      REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB3)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:244 */
-      REGB0 = TAG_Bool(UNTAG_Int(REGB2)>UNTAG_Int(REGB0));
-    } else {
-      /* ../lib/standard/string.nit:755 */
-      REGB3 = TAG_Bool(0);
-      REGB0 = REGB3;
-    }
-    if (UNTAG_Bool(REGB0)) {
-      /* ../lib/standard/kernel.nit:250 */
-      REGB0 = TAG_Int(UNTAG_Int(REGB2)%UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:756 */
-      REGB0 = CALL_standard___kernel___Int___to_c(REGB0)(REGB0);
-      CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB4, REGB0);
-      /* ../lib/standard/kernel.nit:249 */
-      REGB0 = TAG_Int(UNTAG_Int(REGB2)/UNTAG_Int(REGB1));
-      /* ../lib/standard/string.nit:757 */
-      REGB2 = REGB0;
-      /* ../lib/standard/string.nit:758 */
-      REGB0 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB0 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB0));
-      /* ../lib/standard/string.nit:758 */
-      REGB4 = REGB0;
-    } else {
-      /* ../lib/standard/string.nit:755 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___Int___native_int_to_s[] = "string::Int::native_int_to_s";
-val_t standard___string___Int___native_int_to_s(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_standard___string;
-  fra.me.line = 762;
-  fra.me.meth = LOCATE_standard___string___Int___native_int_to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  REGB0 = p0;
-  REGB1 = p1;
-  /* ../lib/standard/string.nit:762 */
-  fra.me.REG[0] = Int_native_int_to_s___out(REGB0, REGB1);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Int___to_s[] = "string::Int::(string::Object::to_s)";
-val_t standard___string___Int___to_s(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_standard___string;
-  fra.me.line = 765;
-  fra.me.meth = LOCATE_standard___string___Int___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:770 */
-  REGB1 = TAG_Int(10);
-  REGB1 = CALL_standard___kernel___Int___digit_count(REGB0)(REGB0, REGB1);
-  /* ../lib/standard/string.nit:771 */
-  fra.me.REG[0] = CALL_standard___string___Int___native_int_to_s(REGB0)(REGB0, REGB1);
-  fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB1);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Int___to_hex[] = "string::Int::to_hex";
-val_t standard___string___Int___to_hex(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_standard___string;
-  fra.me.line = 774;
-  fra.me.meth = LOCATE_standard___string___Int___to_hex;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:775 */
-  REGB1 = TAG_Int(16);
-  REGB2 = TAG_Bool(0);
-  fra.me.REG[0] = CALL_standard___string___Int___to_base(REGB0)(REGB0, REGB1, REGB2);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Int___to_base[] = "string::Int::to_base";
-val_t standard___string___Int___to_base(val_t p0, val_t p1, val_t p2){
-  struct {struct stack_frame_t me;} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t REGB2;
-  val_t REGB3;
-  val_t REGB4;
-  val_t tmp;
-  static val_t once_value_1; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 777;
-  fra.me.meth = LOCATE_standard___string___Int___to_base;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  REGB0 = p0;
-  REGB1 = p1;
-  REGB2 = p2;
-  /* ../lib/standard/string.nit:780 */
-  REGB3 = CALL_standard___kernel___Int___digit_count(REGB0)(REGB0, REGB1);
-  /* ../lib/standard/string.nit:781 */
-  if (!once_value_1) {
-    fra.me.REG[0] = BOX_NativeString(" ");
-    REGB4 = TAG_Int(1);
-    fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB4);
-    once_value_1 = fra.me.REG[0];
-    register_static_object(&once_value_1);
-  } else fra.me.REG[0] = once_value_1;
-  fra.me.REG[0] = fra.me.REG[0];
-  fra.me.REG[0] = CALL_standard___string___String_____star(fra.me.REG[0])(fra.me.REG[0], REGB3);
-  fra.me.REG[0] = NEW_Buffer_standard___string___Buffer___from(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:782 */
-  CALL_standard___string___Int___fill_buffer(REGB0)(REGB0, fra.me.REG[0], REGB1, REGB2);
-  /* ../lib/standard/string.nit:783 */
-  fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Float___to_s[] = "string::Float::(string::Object::to_s)";
-val_t standard___string___Float___to_s(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 REGB3;
-  val_t REGB4;
-  val_t REGB5;
-  val_t REGB6;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 788;
-  fra.me.meth = LOCATE_standard___string___Float___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:790 */
-  REGB0 = TAG_Int(3);
-  fra.me.REG[0] = CALL_standard___string___Float___to_precision(fra.me.REG[0])(fra.me.REG[0], REGB0);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB0 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB0 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:792 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
-  /* ../lib/standard/kernel.nit:393 */
-  while(1) {
-    REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:241 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB1)<=UNTAG_Int(REGB2));
-    /* ../lib/standard/kernel.nit:393 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:792 */
-      REGB3 = REGB1;
-      /* ../lib/standard/string.nit:793 */
-      REGB4 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB4 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB4));
-      REGB3 = TAG_Int(UNTAG_Int(REGB4)-UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:794 */
-      REGB4 = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB3);
-      /* ../lib/standard/string.nit:795 */
-      REGB5 = TAG_Char('0');
-      REGB6 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB5));
-      if (UNTAG_Bool(REGB6)) {
-      } else {
-        /* ../lib/standard/kernel.nit:434 */
-        REGB5 = TAG_Bool((REGB4)==(REGB5));
-        /* ../lib/standard/string.nit:795 */
-        REGB6 = REGB5;
-      }
-      if (UNTAG_Bool(REGB6)) {
-        /* ../lib/standard/string.nit:796 */
-        goto label1;
-      } else {
-        /* ../lib/standard/string.nit:797 */
-        REGB6 = TAG_Char('.');
-        REGB5 = TAG_Bool(IS_EQUAL_OO(REGB4,REGB6));
-        if (UNTAG_Bool(REGB5)) {
-        } else {
-          /* ../lib/standard/kernel.nit:434 */
-          REGB6 = TAG_Bool((REGB4)==(REGB6));
-          /* ../lib/standard/string.nit:797 */
-          REGB5 = REGB6;
-        }
-        if (UNTAG_Bool(REGB5)) {
-          /* ../lib/standard/string.nit:798 */
-          REGB5 = TAG_Int(0);
-          REGB6 = TAG_Int(2);
-          /* ../lib/standard/kernel.nit:245 */
-          REGB6 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB6));
-          /* ../lib/standard/string.nit:798 */
-          fra.me.REG[1] = CALL_standard___string___AbstractString___substring(fra.me.REG[0])(fra.me.REG[0], REGB5, REGB6);
-          goto label2;
-        } else {
-          /* ../lib/standard/string.nit:800 */
-          REGB6 = TAG_Int(0);
-          REGB5 = TAG_Int(1);
-          /* ../lib/standard/kernel.nit:245 */
-          REGB5 = TAG_Int(UNTAG_Int(REGB3)+UNTAG_Int(REGB5));
-          /* ../lib/standard/string.nit:800 */
-          fra.me.REG[2] = CALL_standard___string___AbstractString___substring(fra.me.REG[0])(fra.me.REG[0], REGB6, REGB5);
-          fra.me.REG[1] = fra.me.REG[2];
-          goto label2;
-        }
-      }
-      label1: while(0);
-      /* ../lib/standard/kernel.nit:395 */
-      REGB5 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB5 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB5));
-      /* ../lib/standard/kernel.nit:395 */
-      REGB1 = REGB5;
-    } else {
-      /* ../lib/standard/kernel.nit:393 */
-      goto label3;
-    }
-  }
-  label3: while(0);
-  /* ../lib/standard/string.nit:803 */
-  fra.me.REG[1] = fra.me.REG[0];
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Float___to_precision[] = "string::Float::to_precision";
-val_t standard___string___Float___to_precision(val_t p0, val_t p1){
-  struct {struct stack_frame_t me; val_t MORE_REG[4];} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t REGB2;
-  val_t REGB3;
-  val_t tmp;
-    static val_t once_value_3; /* Once value */
-    static val_t once_value_4; /* Once value */
-    static val_t once_value_5; /* Once value */
-    static val_t once_value_6; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 806;
-  fra.me.meth = LOCATE_standard___string___Float___to_precision;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 5;
-  fra.me.nitni_local_ref_head = NULL;
-  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[4] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:809 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB1 = TAG_Bool((REGB0)==(REGB1));
-    /* ../lib/standard/string.nit:809 */
-    REGB2 = REGB1;
-  }
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/kernel.nit:220 */
-    REGB2 = TAG_Int((bigint)UNBOX_Float(fra.me.REG[0]));
-    /* ../lib/standard/string.nit:809 */
-    fra.me.REG[1] = CALL_standard___string___Object___to_s(REGB2)(REGB2);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:810 */
-  fra.me.REG[2] = fra.me.REG[0];
-  /* ../lib/standard/string.nit:811 */
-  REGB2 = TAG_Int(0);
-  /* ../lib/standard/kernel.nit:399 */
-  REGB1 = REGB0;
-  /* ../lib/standard/kernel.nit:404 */
-  while(1) {
-    REGB3 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB3 = TAG_Bool(UNTAG_Int(REGB2)<UNTAG_Int(REGB1));
-    /* ../lib/standard/kernel.nit:404 */
-    if (UNTAG_Bool(REGB3)) {
-      /* ../lib/standard/string.nit:811 */
-      fra.me.REG[3] = BOX_Float(10.0);
-      /* ../lib/standard/kernel.nit:217 */
-      fra.me.REG[3] = BOX_Float(UNBOX_Float(fra.me.REG[2])*UNBOX_Float(fra.me.REG[3]));
-      /* ../lib/standard/string.nit:811 */
-      fra.me.REG[2] = fra.me.REG[3];
-      /* ../lib/standard/kernel.nit:406 */
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB2)+UNTAG_Int(REGB3));
-      /* ../lib/standard/kernel.nit:406 */
-      REGB2 = REGB3;
-    } else {
-      /* ../lib/standard/kernel.nit:404 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:812 */
-  fra.me.REG[3] = BOX_Float(0.0);
-  /* ../lib/standard/kernel.nit:213 */
-  REGB2 = TAG_Bool(UNBOX_Float(fra.me.REG[0])>UNBOX_Float(fra.me.REG[3]));
-  /* ../lib/standard/string.nit:812 */
-  if (UNTAG_Bool(REGB2)) {
-    /* ../lib/standard/string.nit:813 */
-    fra.me.REG[3] = BOX_Float(0.5);
-    /* ../lib/standard/kernel.nit:214 */
-    fra.me.REG[3] = BOX_Float(UNBOX_Float(fra.me.REG[2])+UNBOX_Float(fra.me.REG[3]));
-    /* ../lib/standard/string.nit:813 */
-    fra.me.REG[2] = fra.me.REG[3];
-  } else {
-    /* ../lib/standard/string.nit:815 */
-    fra.me.REG[3] = BOX_Float(0.5);
-    /* ../lib/standard/kernel.nit:216 */
-    fra.me.REG[3] = BOX_Float(UNBOX_Float(fra.me.REG[2])-UNBOX_Float(fra.me.REG[3]));
-    /* ../lib/standard/string.nit:815 */
-    fra.me.REG[2] = fra.me.REG[3];
-  }
-  /* ../lib/standard/kernel.nit:220 */
-  REGB2 = TAG_Int((bigint)UNBOX_Float(fra.me.REG[2]));
-  /* ../lib/standard/string.nit:818 */
-  REGB1 = TAG_Int(0);
-  REGB3 = TAG_Bool(IS_EQUAL_OO(REGB2,REGB1));
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    /* ../lib/standard/kernel.nit:237 */
-    REGB1 = TAG_Bool((REGB2)==(REGB1));
-    /* ../lib/standard/string.nit:818 */
-    REGB3 = REGB1;
-  }
-  if (UNTAG_Bool(REGB3)) {
-    if (!once_value_3) {
-      fra.me.REG[2] = BOX_NativeString("0.0");
-      REGB3 = TAG_Int(3);
-      fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB3);
-      once_value_3 = fra.me.REG[2];
-      register_static_object(&once_value_3);
-    } else fra.me.REG[2] = once_value_3;
-    fra.me.REG[2] = fra.me.REG[2];
-    fra.me.REG[1] = fra.me.REG[2];
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:819 */
-  fra.me.REG[2] = CALL_standard___string___Object___to_s(REGB2)(REGB2);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB2 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB2 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-  REGB3 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB3)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:244 */
-  REGB3 = TAG_Bool(UNTAG_Int(REGB2)>UNTAG_Int(REGB0));
-  /* ../lib/standard/string.nit:821 */
-  if (UNTAG_Bool(REGB3)) {
-    /* ../lib/standard/string.nit:822 */
-    REGB3 = TAG_Int(0);
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-    /* ../lib/standard/kernel.nit:247 */
-    REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:822 */
-    fra.me.REG[3] = CALL_standard___string___AbstractString___substring(fra.me.REG[2])(fra.me.REG[2], REGB3, REGB1);
-    /* ../lib/standard/collection/array.nit:24 */
-    REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-    } else {
-      nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-    }
-    REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-    /* ../lib/standard/kernel.nit:247 */
-    REGB1 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:823 */
-    fra.me.REG[0] = CALL_standard___string___AbstractString___substring(fra.me.REG[2])(fra.me.REG[2], REGB1, REGB0);
-    /* ../lib/standard/string.nit:824 */
-    if (!once_value_4) {
-      fra.me.REG[4] = BOX_NativeString(".");
-      REGB1 = TAG_Int(1);
-      fra.me.REG[4] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[4])(fra.me.REG[4], REGB1);
-      once_value_4 = fra.me.REG[4];
-      register_static_object(&once_value_4);
-    } else fra.me.REG[4] = once_value_4;
-    fra.me.REG[4] = fra.me.REG[4];
-    fra.me.REG[4] = CALL_standard___string___String_____plus(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[4]);
-    fra.me.REG[0] = CALL_standard___string___String_____plus(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[0]);
-    fra.me.REG[1] = fra.me.REG[0];
-    goto label1;
-  } else {
-    /* ../lib/standard/string.nit:826 */
-    if (!once_value_5) {
-      fra.me.REG[0] = BOX_NativeString("0.");
-      REGB1 = TAG_Int(2);
-      fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB1);
-      once_value_5 = fra.me.REG[0];
-      register_static_object(&once_value_5);
-    } else fra.me.REG[0] = once_value_5;
-    fra.me.REG[0] = fra.me.REG[0];
-    if (!once_value_6) {
-      fra.me.REG[4] = BOX_NativeString("0");
-      REGB1 = TAG_Int(1);
-      fra.me.REG[4] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[4])(fra.me.REG[4], REGB1);
-      once_value_6 = fra.me.REG[4];
-      register_static_object(&once_value_6);
-    } else fra.me.REG[4] = once_value_6;
-    fra.me.REG[4] = fra.me.REG[4];
-    /* ../lib/standard/kernel.nit:247 */
-    REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
-    /* ../lib/standard/string.nit:826 */
-    fra.me.REG[4] = CALL_standard___string___String_____star(fra.me.REG[4])(fra.me.REG[4], REGB2);
-    fra.me.REG[4] = CALL_standard___string___String_____plus(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[4]);
-    fra.me.REG[2] = CALL_standard___string___String_____plus(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[2]);
-    fra.me.REG[1] = fra.me.REG[2];
-    goto label1;
-  }
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Float___to_precision_native[] = "string::Float::to_precision_native";
-val_t standard___string___Float___to_precision_native(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_standard___string;
-  fra.me.line = 830;
-  fra.me.meth = LOCATE_standard___string___Float___to_precision_native;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:830 */
-  fra.me.REG[0] = Float_to_precision_native___out(fra.me.REG[0], REGB0);
-  ;
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Char___to_s[] = "string::Char::(string::Object::to_s)";
-val_t standard___string___Char___to_s(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_standard___string;
-  fra.me.line = 843;
-  fra.me.meth = LOCATE_standard___string___Char___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:846 */
-  REGB1 = TAG_Int(1);
-  fra.me.REG[0] = NEW_Buffer_standard___string___Buffer___with_capacity(REGB1);
-  /* ../lib/standard/string.nit:847 */
-  REGB1 = TAG_Int(0);
-  CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB1, REGB0);
-  /* ../lib/standard/string.nit:848 */
-  fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Char___is_numeric[] = "string::Char::is_numeric";
-val_t standard___string___Char___is_numeric(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_standard___string;
-  fra.me.line = 851;
-  fra.me.meth = LOCATE_standard___string___Char___is_numeric;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 0;
-  fra.me.nitni_local_ref_head = NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:854 */
-  REGB1 = TAG_Char('0');
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:440 */
-  REGB1 = TAG_Bool(UNTAG_Char(REGB0)>=UNTAG_Char(REGB1));
-  /* ../lib/standard/string.nit:854 */
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Char('9');
-    REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:438 */
-    REGB1 = TAG_Bool(UNTAG_Char(REGB0)<=UNTAG_Char(REGB1));
-  } else {
-    /* ../lib/standard/string.nit:854 */
-    REGB0 = TAG_Bool(0);
-    REGB1 = REGB0;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    /* ../lib/standard/string.nit:856 */
-    REGB1 = TAG_Bool(1);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:858 */
-  REGB0 = TAG_Bool(0);
-  REGB1 = REGB0;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB1;
-}
-static const char LOCATE_standard___string___Char___is_alpha[] = "string::Char::is_alpha";
-val_t standard___string___Char___is_alpha(val_t p0){
-  struct {struct stack_frame_t me;} 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_standard___string;
-  fra.me.line = 861;
-  fra.me.meth = LOCATE_standard___string___Char___is_alpha;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 0;
-  fra.me.nitni_local_ref_head = NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:864 */
-  REGB1 = TAG_Char('a');
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:440 */
-  REGB1 = TAG_Bool(UNTAG_Char(REGB0)>=UNTAG_Char(REGB1));
-  /* ../lib/standard/string.nit:864 */
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Char('z');
-    REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:438 */
-    REGB1 = TAG_Bool(UNTAG_Char(REGB0)<=UNTAG_Char(REGB1));
-  } else {
-    /* ../lib/standard/string.nit:864 */
-    REGB2 = TAG_Bool(0);
-    REGB1 = REGB2;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-  } else {
-    REGB2 = TAG_Char('A');
-    REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:440 */
-    REGB2 = TAG_Bool(UNTAG_Char(REGB0)>=UNTAG_Char(REGB2));
-    /* ../lib/standard/string.nit:864 */
-    if (UNTAG_Bool(REGB2)) {
-      REGB2 = TAG_Char('Z');
-      REGB3 = TAG_Bool(VAL_ISA(REGB2, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB3)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:438 */
-      REGB2 = TAG_Bool(UNTAG_Char(REGB0)<=UNTAG_Char(REGB2));
-    } else {
-      /* ../lib/standard/string.nit:864 */
-      REGB0 = TAG_Bool(0);
-      REGB2 = REGB0;
-    }
-    REGB1 = REGB2;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:865 */
-  REGB2 = TAG_Bool(0);
-  REGB1 = REGB2;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB1;
-}
-static const char LOCATE_standard___string___Char___is_alphanumeric[] = "string::Char::is_alphanumeric";
-val_t standard___string___Char___is_alphanumeric(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_standard___string;
-  fra.me.line = 868;
-  fra.me.meth = LOCATE_standard___string___Char___is_alphanumeric;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 0;
-  fra.me.nitni_local_ref_head = NULL;
-  REGB0 = p0;
-  /* ../lib/standard/string.nit:871 */
-  REGB1 = CALL_standard___string___Char___is_numeric(REGB0)(REGB0);
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-  } else {
-    REGB0 = CALL_standard___string___Char___is_alpha(REGB0)(REGB0);
-    REGB1 = REGB0;
-  }
-  if (UNTAG_Bool(REGB1)) {
-    REGB1 = TAG_Bool(1);
-    goto label1;
-  }
-  /* ../lib/standard/string.nit:872 */
-  REGB0 = TAG_Bool(0);
-  REGB1 = REGB0;
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB1;
-}
-static const char LOCATE_standard___string___Collection___to_s[] = "string::Collection::(string::Object::to_s)";
-val_t standard___string___Collection___to_s(val_t p0){
-  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_standard___string;
-  fra.me.line = 877;
-  fra.me.meth = LOCATE_standard___string___Collection___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:880 */
-  fra.me.REG[1] = NEW_Buffer_standard___string___Buffer___init();
-  CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___string___Collection___to_s_1));
-  /* ../lib/standard/string.nit:882 */
-  fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-  void OC_standard___string___Collection___to_s_1(struct stack_frame_t *closctx, val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
-    struct {struct stack_frame_t me;} fra;
-    val_t REGB0;
-    val_t REGB1;
-    fun_t CREG[1];
-    val_t tmp;
-    /* ../lib/standard/string.nit:881 */
-    fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-    fra.me.file = LOCATE_standard___string;
-    fra.me.line = 0;
-    fra.me.meth = LOCATE_standard___string___Collection___to_s;
-    fra.me.has_broke = 0;
-    fra.me.REG_size = 1;
-    fra.me.nitni_local_ref_head = NULL;
-    fra.me.REG[0] = NIT_NULL;
-    fra.me.closure_ctx = closctx_param;
-    fra.me.closure_funs = CREG;
-    fra.me.REG[0] = p0;
-    CREG[0] = clos_fun0;
-    REGB0 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
-    if (UNTAG_Bool(REGB0)) {
-    } else {
-      REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
-      if (UNTAG_Bool(REGB1)) {
-        REGB1 = TAG_Bool(0);
-        REGB0 = REGB1;
-      } else {
-        REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], NIT_NULL);
-        REGB0 = REGB1;
-      }
-    }
-    REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-    if (UNTAG_Bool(REGB0)) {
-      REGB0 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
-      if (UNTAG_Bool(REGB0)) {
-        nit_abort("Reciever is null", NULL, LOCATE_standard___string, 881);
-      }
-      fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-      CALL_standard___collection___abstract_collection___Sequence___append(closctx->REG[1])(closctx->REG[1], fra.me.REG[0]);
-    }
-    stack_frame_head = fra.me.prev;
-    return;
-  }
-static const char LOCATE_standard___string___Collection___join[] = "string::Collection::join";
-val_t standard___string___Collection___join(val_t p0, val_t p1){
-  struct {struct stack_frame_t me; val_t MORE_REG[5];} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t tmp;
-    static val_t once_value_1; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 885;
-  fra.me.meth = LOCATE_standard___string___Collection___join;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 6;
-  fra.me.nitni_local_ref_head = NULL;
-  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[4] = NIT_NULL;
-  fra.me.REG[5] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  /* ../lib/standard/string.nit:891 */
-  REGB0 = CALL_standard___collection___abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
-  if (UNTAG_Bool(REGB0)) {
-    if (!once_value_1) {
-      fra.me.REG[2] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[2] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[2])(fra.me.REG[2], REGB0);
-      once_value_1 = fra.me.REG[2];
-      register_static_object(&once_value_1);
-    } else fra.me.REG[2] = once_value_1;
-    fra.me.REG[2] = fra.me.REG[2];
-    goto label2;
-  }
-  /* ../lib/standard/string.nit:893 */
-  fra.me.REG[3] = NEW_Buffer_standard___string___Buffer___init();
-  /* ../lib/standard/string.nit:896 */
-  fra.me.REG[0] = CALL_standard___collection___abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:897 */
-  fra.me.REG[4] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:898 */
-  REGB0 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(0);
-      REGB0 = REGB1;
-    } else {
-      REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[4])(fra.me.REG[4], NIT_NULL);
-      REGB0 = REGB1;
-    }
-  }
-  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-  if (UNTAG_Bool(REGB0)) {
-    REGB0 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
-    if (UNTAG_Bool(REGB0)) {
-      nit_abort("Reciever is null", NULL, LOCATE_standard___string, 898);
-    }
-    fra.me.REG[5] = CALL_standard___string___Object___to_s(fra.me.REG[4])(fra.me.REG[4]);
-    CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[5]);
-  }
-  /* ../lib/standard/string.nit:901 */
-  CALL_standard___collection___abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:902 */
-  while(1) {
-    REGB0 = CALL_standard___collection___abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
-    if (UNTAG_Bool(REGB0)) {
-      /* ../lib/standard/string.nit:903 */
-      CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[1]);
-      /* ../lib/standard/string.nit:904 */
-      fra.me.REG[5] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
-      fra.me.REG[4] = fra.me.REG[5];
-      /* ../lib/standard/string.nit:905 */
-      REGB0 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
-      if (UNTAG_Bool(REGB0)) {
-      } else {
-        REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
-        if (UNTAG_Bool(REGB1)) {
-          REGB1 = TAG_Bool(0);
-          REGB0 = REGB1;
-        } else {
-          REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[4])(fra.me.REG[4], NIT_NULL);
-          REGB0 = REGB1;
-        }
-      }
-      REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-      if (UNTAG_Bool(REGB0)) {
-        REGB0 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
-        if (UNTAG_Bool(REGB0)) {
-          nit_abort("Reciever is null", NULL, LOCATE_standard___string, 905);
-        }
-        fra.me.REG[5] = CALL_standard___string___Object___to_s(fra.me.REG[4])(fra.me.REG[4]);
-        CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[3])(fra.me.REG[3], fra.me.REG[5]);
-      }
-      /* ../lib/standard/string.nit:906 */
-      CALL_standard___collection___abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
-    } else {
-      /* ../lib/standard/string.nit:902 */
-      goto label3;
-    }
-  }
-  label3: while(0);
-  /* ../lib/standard/string.nit:908 */
-  fra.me.REG[3] = CALL_standard___string___Object___to_s(fra.me.REG[3])(fra.me.REG[3]);
-  fra.me.REG[2] = fra.me.REG[3];
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[2];
-}
-static const char LOCATE_standard___string___Array___to_s[] = "string::Array::(string::Object::to_s)";
-val_t standard___string___Array___to_s(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 REGB3;
-  val_t REGB4;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 913;
-  fra.me.meth = LOCATE_standard___string___Array___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:916 */
-  fra.me.REG[1] = NEW_Buffer_standard___string___Buffer___init();
-  /* ../lib/standard/string.nit:917 */
-  REGB0 = TAG_Int(0);
-  /* ../lib/standard/collection/array.nit:24 */
-  REGB1 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0])!=NIT_NULL);
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 24);
-  }
-  REGB1 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:919 */
-  while(1) {
-    REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB0)<UNTAG_Int(REGB1));
-    /* ../lib/standard/string.nit:919 */
-    if (UNTAG_Bool(REGB2)) {
-      /* ../lib/standard/collection/array.nit:279 */
-      fra.me.REG[2] = fra.me.REG[0];
-      REGB2 = REGB0;
-      /* ../lib/standard/collection/array.nit:281 */
-      REGB3 = TAG_Int(0);
-      REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-      if (UNTAG_Bool(REGB4)) {
-      } else {
-        nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-      }
-      /* ../lib/standard/kernel.nit:243 */
-      REGB3 = TAG_Bool(UNTAG_Int(REGB2)>=UNTAG_Int(REGB3));
-      /* ../lib/standard/collection/array.nit:281 */
-      if (UNTAG_Bool(REGB3)) {
-        REGB3 = TAG_Bool(ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2])!=NIT_NULL);
-        if (UNTAG_Bool(REGB3)) {
-        } else {
-          nit_abort("Uninitialized attribute %s", "_length", LOCATE_standard___collection___array, 281);
-        }
-        REGB3 = ATTR_standard___collection___array___AbstractArrayRead____length(fra.me.REG[2]);
-        REGB4 = TAG_Bool(VAL_ISA(REGB3, VTCOLOR_standard___kernel___Comparable___OTHER(REGB2), VTID_standard___kernel___Comparable___OTHER(REGB2))) /*cast OTHER*/;
-        if (UNTAG_Bool(REGB4)) {
-        } else {
-          nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-        }
-        /* ../lib/standard/kernel.nit:242 */
-        REGB3 = TAG_Bool(UNTAG_Int(REGB2)<UNTAG_Int(REGB3));
-      } else {
-        /* ../lib/standard/collection/array.nit:281 */
-        REGB4 = TAG_Bool(0);
-        REGB3 = REGB4;
-      }
-      if (UNTAG_Bool(REGB3)) {
-      } else {
-        nit_abort("Assert '%s' failed", "index", LOCATE_standard___collection___array, 281);
-      }
-      /* ../lib/standard/collection/array.nit:282 */
-      fra.me.REG[2] = ATTR_standard___collection___array___Array____items(fra.me.REG[2]);
-      REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
-      if (UNTAG_Bool(REGB3)) {
-        nit_abort("Reciever is null", NULL, LOCATE_standard___collection___array, 282);
-      }
-      /* ../lib/standard/collection/array.nit:725 */
-      fra.me.REG[2] = ((Nit_NativeArray)fra.me.REG[2])->val[UNTAG_Int(REGB2)];
-      /* ../lib/standard/collection/array.nit:282 */
-      goto label1;
-      label1: while(0);
-      /* ../lib/standard/string.nit:921 */
-      REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
-      if (UNTAG_Bool(REGB2)) {
-      } else {
-        REGB3 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
-        if (UNTAG_Bool(REGB3)) {
-          REGB3 = TAG_Bool(0);
-          REGB2 = REGB3;
-        } else {
-          REGB3 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
-          REGB2 = REGB3;
-        }
-      }
-      REGB2 = TAG_Bool(!UNTAG_Bool(REGB2));
-      if (UNTAG_Bool(REGB2)) {
-        REGB2 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
-        if (UNTAG_Bool(REGB2)) {
-          nit_abort("Reciever is null", NULL, LOCATE_standard___string, 921);
-        }
-        fra.me.REG[2] = CALL_standard___string___Object___to_s(fra.me.REG[2])(fra.me.REG[2]);
-        CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[1])(fra.me.REG[1], fra.me.REG[2]);
-      }
-      /* ../lib/standard/string.nit:922 */
-      REGB2 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB2 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB2));
-      /* ../lib/standard/string.nit:922 */
-      REGB0 = REGB2;
-    } else {
-      /* ../lib/standard/string.nit:919 */
-      goto label2;
-    }
-  }
-  label2: while(0);
-  /* ../lib/standard/string.nit:924 */
-  fra.me.REG[1] = CALL_standard___string___Object___to_s(fra.me.REG[1])(fra.me.REG[1]);
-  goto label3;
-  label3: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Map___join[] = "string::Map::join";
-val_t standard___string___Map___join(val_t p0, val_t p1, val_t p2){
-  struct {struct stack_frame_t me; val_t MORE_REG[8];} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t tmp;
-    static val_t once_value_1; /* Once value */
-    static val_t once_value_3; /* Once value */
-    static val_t once_value_4; /* Once value */
-    static val_t once_value_5; /* Once value */
-    static val_t once_value_6; /* Once value */
-        static val_t once_value_7; /* Once value */
-        static val_t once_value_8; /* Once value */
-        static val_t once_value_9; /* Once value */
-        static val_t once_value_10; /* Once value */
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 929;
-  fra.me.meth = LOCATE_standard___string___Map___join;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 9;
-  fra.me.nitni_local_ref_head = NULL;
-  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[4] = NIT_NULL;
-  fra.me.REG[5] = NIT_NULL;
-  fra.me.REG[6] = NIT_NULL;
-  fra.me.REG[7] = NIT_NULL;
-  fra.me.REG[8] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  fra.me.REG[2] = p2;
-  /* ../lib/standard/string.nit:939 */
-  REGB0 = CALL_standard___collection___abstract_collection___MapRead___is_empty(fra.me.REG[0])(fra.me.REG[0]);
-  if (UNTAG_Bool(REGB0)) {
-    if (!once_value_1) {
-      fra.me.REG[3] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[3] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[3])(fra.me.REG[3], REGB0);
-      once_value_1 = fra.me.REG[3];
-      register_static_object(&once_value_1);
-    } else fra.me.REG[3] = once_value_1;
-    fra.me.REG[3] = fra.me.REG[3];
-    goto label2;
-  }
-  /* ../lib/standard/string.nit:941 */
-  fra.me.REG[4] = NEW_Buffer_standard___string___Buffer___init();
-  /* ../lib/standard/string.nit:944 */
-  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapRead___iterator(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:945 */
-  fra.me.REG[5] = CALL_standard___collection___abstract_collection___MapIterator___key(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:946 */
-  fra.me.REG[6] = CALL_standard___collection___abstract_collection___MapIterator___item(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:947 */
-  REGB0 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    REGB1 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(0);
-      REGB0 = REGB1;
-    } else {
-      REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[6])(fra.me.REG[6], NIT_NULL);
-      REGB0 = REGB1;
-    }
-  }
-  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-  if (UNTAG_Bool(REGB0)) {
-    REGB0 = TAG_Int(7);
-    fra.me.REG[7] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
-    if (!once_value_3) {
-      fra.me.REG[8] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-      once_value_3 = fra.me.REG[8];
-      register_static_object(&once_value_3);
-    } else fra.me.REG[8] = once_value_3;
-    fra.me.REG[8] = fra.me.REG[8];
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-    fra.me.REG[8] = CALL_standard___string___Object___to_s(fra.me.REG[5])(fra.me.REG[5]);
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-    if (!once_value_4) {
-      fra.me.REG[8] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-      once_value_4 = fra.me.REG[8];
-      register_static_object(&once_value_4);
-    } else fra.me.REG[8] = once_value_4;
-    fra.me.REG[8] = fra.me.REG[8];
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[2]);
-    if (!once_value_5) {
-      fra.me.REG[8] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-      once_value_5 = fra.me.REG[8];
-      register_static_object(&once_value_5);
-    } else fra.me.REG[8] = once_value_5;
-    fra.me.REG[8] = fra.me.REG[8];
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-    fra.me.REG[8] = CALL_standard___string___Object___to_s(fra.me.REG[6])(fra.me.REG[6]);
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-    if (!once_value_6) {
-      fra.me.REG[8] = BOX_NativeString("");
-      REGB0 = TAG_Int(0);
-      fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-      once_value_6 = fra.me.REG[8];
-      register_static_object(&once_value_6);
-    } else fra.me.REG[8] = once_value_6;
-    fra.me.REG[8] = fra.me.REG[8];
-    CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-    fra.me.REG[7] = CALL_standard___string___Object___to_s(fra.me.REG[7])(fra.me.REG[7]);
-    CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[7]);
-  }
-  /* ../lib/standard/string.nit:950 */
-  CALL_standard___collection___abstract_collection___MapIterator___next(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:951 */
-  while(1) {
-    REGB0 = CALL_standard___collection___abstract_collection___MapIterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
-    if (UNTAG_Bool(REGB0)) {
-      /* ../lib/standard/string.nit:952 */
-      CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[1]);
-      /* ../lib/standard/string.nit:953 */
-      fra.me.REG[7] = CALL_standard___collection___abstract_collection___MapIterator___key(fra.me.REG[0])(fra.me.REG[0]);
-      fra.me.REG[5] = fra.me.REG[7];
-      /* ../lib/standard/string.nit:954 */
-      fra.me.REG[7] = CALL_standard___collection___abstract_collection___MapIterator___item(fra.me.REG[0])(fra.me.REG[0]);
-      fra.me.REG[6] = fra.me.REG[7];
-      /* ../lib/standard/string.nit:955 */
-      REGB0 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
-      if (UNTAG_Bool(REGB0)) {
-      } else {
-        REGB1 = TAG_Bool(fra.me.REG[6]==NIT_NULL);
-        if (UNTAG_Bool(REGB1)) {
-          REGB1 = TAG_Bool(0);
-          REGB0 = REGB1;
-        } else {
-          REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[6])(fra.me.REG[6], NIT_NULL);
-          REGB0 = REGB1;
-        }
-      }
-      REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-      if (UNTAG_Bool(REGB0)) {
-        REGB0 = TAG_Int(7);
-        fra.me.REG[7] = NEW_Array_standard___collection___array___Array___with_capacity(REGB0);
-        if (!once_value_7) {
-          fra.me.REG[8] = BOX_NativeString("");
-          REGB0 = TAG_Int(0);
-          fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-          once_value_7 = fra.me.REG[8];
-          register_static_object(&once_value_7);
-        } else fra.me.REG[8] = once_value_7;
-        fra.me.REG[8] = fra.me.REG[8];
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-        fra.me.REG[8] = CALL_standard___string___Object___to_s(fra.me.REG[5])(fra.me.REG[5]);
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-        if (!once_value_8) {
-          fra.me.REG[8] = BOX_NativeString("");
-          REGB0 = TAG_Int(0);
-          fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-          once_value_8 = fra.me.REG[8];
-          register_static_object(&once_value_8);
-        } else fra.me.REG[8] = once_value_8;
-        fra.me.REG[8] = fra.me.REG[8];
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[2]);
-        if (!once_value_9) {
-          fra.me.REG[8] = BOX_NativeString("");
-          REGB0 = TAG_Int(0);
-          fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-          once_value_9 = fra.me.REG[8];
-          register_static_object(&once_value_9);
-        } else fra.me.REG[8] = once_value_9;
-        fra.me.REG[8] = fra.me.REG[8];
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-        fra.me.REG[8] = CALL_standard___string___Object___to_s(fra.me.REG[6])(fra.me.REG[6]);
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-        if (!once_value_10) {
-          fra.me.REG[8] = BOX_NativeString("");
-          REGB0 = TAG_Int(0);
-          fra.me.REG[8] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[8])(fra.me.REG[8], REGB0);
-          once_value_10 = fra.me.REG[8];
-          register_static_object(&once_value_10);
-        } else fra.me.REG[8] = once_value_10;
-        fra.me.REG[8] = fra.me.REG[8];
-        CALL_standard___collection___abstract_collection___SimpleCollection___add(fra.me.REG[7])(fra.me.REG[7], fra.me.REG[8]);
-        fra.me.REG[7] = CALL_standard___string___Object___to_s(fra.me.REG[7])(fra.me.REG[7]);
-        CALL_standard___collection___abstract_collection___Sequence___append(fra.me.REG[4])(fra.me.REG[4], fra.me.REG[7]);
-      }
-      /* ../lib/standard/string.nit:956 */
-      CALL_standard___collection___abstract_collection___MapIterator___next(fra.me.REG[0])(fra.me.REG[0]);
-    } else {
-      /* ../lib/standard/string.nit:951 */
-      goto label11;
-    }
-  }
-  label11: while(0);
-  /* ../lib/standard/string.nit:958 */
-  fra.me.REG[4] = CALL_standard___string___Object___to_s(fra.me.REG[4])(fra.me.REG[4]);
-  fra.me.REG[3] = fra.me.REG[4];
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[3];
-}
-static const char LOCATE_standard___string___NativeString_____bra[] = "string::NativeString::[]";
-val_t standard___string___NativeString_____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_standard___string;
-  fra.me.line = 970;
-  fra.me.meth = LOCATE_standard___string___NativeString_____bra;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:970 */
-  REGB0 = TAG_Char(UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB0)]);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___NativeString_____braeq[] = "string::NativeString::[]=";
-void standard___string___NativeString_____braeq(val_t p0, val_t p1, val_t p2){
-  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_standard___string;
-  fra.me.line = 971;
-  fra.me.meth = LOCATE_standard___string___NativeString_____braeq;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  REGB1 = p2;
-  /* ../lib/standard/string.nit:971 */
-  UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB0)]=UNTAG_Char(REGB1);;
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___NativeString___copy_to[] = "string::NativeString::copy_to";
-void standard___string___NativeString___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[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_standard___string;
-  fra.me.line = 972;
-  fra.me.meth = LOCATE_standard___string___NativeString___copy_to;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  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 = p3;
-  REGB2 = p4;
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[1])+UNTAG_Int(REGB2), UNBOX_NativeString(fra.me.REG[0])+UNTAG_Int(REGB1), UNTAG_Int(REGB0));;
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___NativeString___cstring_length[] = "string::NativeString::cstring_length";
-val_t standard___string___NativeString___cstring_length(val_t p0){
-  struct {struct stack_frame_t me;} 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_standard___string;
-  fra.me.line = 974;
-  fra.me.meth = LOCATE_standard___string___NativeString___cstring_length;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:977 */
-  REGB0 = TAG_Int(0);
-  /* ../lib/standard/string.nit:978 */
-  while(1) {
-    /* ../lib/standard/string.nit:970 */
-    REGB1 = TAG_Char(UNBOX_NativeString(fra.me.REG[0])[UNTAG_Int(REGB0)]);
-    /* ../lib/standard/string.nit:978 */
-    REGB2 = TAG_Char('\0');
-    REGB3 = TAG_Bool(IS_EQUAL_OO(REGB1,REGB2));
-    if (UNTAG_Bool(REGB3)) {
-    } else {
-      /* ../lib/standard/kernel.nit:434 */
-      REGB2 = TAG_Bool((REGB1)==(REGB2));
-      /* ../lib/standard/string.nit:978 */
-      REGB3 = REGB2;
-    }
-    REGB3 = TAG_Bool(!UNTAG_Bool(REGB3));
-    if (UNTAG_Bool(REGB3)) {
-      REGB3 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB3 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB3));
-      /* ../lib/standard/string.nit:978 */
-      REGB0 = REGB3;
-    } else {
-      goto label1;
-    }
-  }
-  label1: while(0);
-  /* ../lib/standard/string.nit:979 */
-  goto label2;
-  label2: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___NativeString___atoi[] = "string::NativeString::atoi";
-val_t standard___string___NativeString___atoi(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_standard___string;
-  fra.me.line = 981;
-  fra.me.meth = LOCATE_standard___string___NativeString___atoi;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:981 */
-  REGB0 = TAG_Int(atoi(UNBOX_NativeString(fra.me.REG[0])));
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___NativeString___atof[] = "string::NativeString::atof";
-val_t standard___string___NativeString___atof(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_standard___string;
-  fra.me.line = 982;
-  fra.me.meth = LOCATE_standard___string___NativeString___atof;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:982 */
-  fra.me.REG[0] = NativeString_atof___out(fra.me.REG[0]);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___NativeString___to_s[] = "string::NativeString::(string::Object::to_s)";
-val_t standard___string___NativeString___to_s(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_standard___string;
-  fra.me.line = 984;
-  fra.me.meth = LOCATE_standard___string___NativeString___to_s;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:986 */
-  REGB0 = CALL_standard___string___NativeString___cstring_length(fra.me.REG[0])(fra.me.REG[0]);
-  fra.me.REG[0] = CALL_standard___string___NativeString___to_s_with_length(fra.me.REG[0])(fra.me.REG[0], REGB0);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___NativeString___to_s_with_length[] = "string::NativeString::to_s_with_length";
-val_t standard___string___NativeString___to_s_with_length(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_standard___string;
-  fra.me.line = 989;
-  fra.me.meth = LOCATE_standard___string___NativeString___to_s_with_length;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:991 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
-  if (UNTAG_Bool(REGB2)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-  }
-  /* ../lib/standard/kernel.nit:243 */
-  REGB1 = TAG_Bool(UNTAG_Int(REGB0)>=UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:991 */
-  if (UNTAG_Bool(REGB1)) {
-  } else {
-    nit_abort("Assert failed", NULL, LOCATE_standard___string, 991);
-  }
-  /* ../lib/standard/string.nit:992 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB2 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB2));
-  /* ../lib/standard/string.nit:992 */
-  fra.me.REG[0] = NEW_String_standard___string___String___with_infos(fra.me.REG[0], REGB0, REGB1, REGB2);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___NativeString___to_s_with_copy[] = "string::NativeString::to_s_with_copy";
-val_t standard___string___NativeString___to_s_with_copy(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 tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 995;
-  fra.me.meth = LOCATE_standard___string___NativeString___to_s_with_copy;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:997 */
-  REGB0 = CALL_standard___string___NativeString___cstring_length(fra.me.REG[0])(fra.me.REG[0]);
-  /* ../lib/standard/string.nit:998 */
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:245 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)+UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[1] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB1) * sizeof(char))));
-  /* ../lib/standard/string.nit:999 */
-  REGB1 = TAG_Int(0);
-  REGB2 = TAG_Int(0);
-  /* ../lib/standard/string.nit:972 */
-  (void)memcpy(UNBOX_NativeString(fra.me.REG[1])+UNTAG_Int(REGB2), UNBOX_NativeString(fra.me.REG[0])+UNTAG_Int(REGB1), UNTAG_Int(REGB0));;
-  /* ../lib/standard/string.nit:1000 */
-  REGB2 = TAG_Int(0);
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/kernel.nit:247 */
-  REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
-  /* ../lib/standard/string.nit:1000 */
-  fra.me.REG[1] = NEW_String_standard___string___String___with_infos(fra.me.REG[1], REGB0, REGB2, REGB1);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___NativeString___init[] = "string::NativeString::init";
-void standard___string___NativeString___init(val_t p0, int* init_table){
-  int itpos5 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___string___NativeString].i;
-  struct {struct stack_frame_t me;} fra;
-  val_t tmp;
-  if (init_table[itpos5]) return;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___string;
-  fra.me.line = 0;
-  fra.me.meth = LOCATE_standard___string___NativeString___init;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 0;
-  fra.me.nitni_local_ref_head = NULL;
-  stack_frame_head = fra.me.prev;
-  init_table[itpos5] = 1;
-  return;
-}
-static const char LOCATE_standard___string___StringCapable___calloc_string[] = "string::StringCapable::calloc_string";
-val_t standard___string___StringCapable___calloc_string(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_standard___string;
-  fra.me.line = 1007;
-  fra.me.meth = LOCATE_standard___string___StringCapable___calloc_string;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:1007 */
-  fra.me.REG[0] = BOX_NativeString((char*)raw_alloc((UNTAG_Int(REGB0) * sizeof(char))));
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Sys___args[] = "string::Sys::(string::Object::args)";
-val_t standard___string___Sys___args(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_standard___string;
-  fra.me.line = 1013;
-  fra.me.meth = LOCATE_standard___string___Sys___args;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:1013 */
-  fra.me.REG[1] = fra.me.REG[0];
-  /* ../lib/standard/string.nit:1015 */
-  fra.me.REG[2] = ATTR_standard___string___Sys____args_cache(fra.me.REG[1]);
-  REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(0);
-      REGB0 = REGB1;
-    } else {
-      REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], NIT_NULL);
-      REGB0 = REGB1;
-    }
-  }
-  if (UNTAG_Bool(REGB0)) {
-    CALL_standard___string___Sys___init_args(fra.me.REG[1])(fra.me.REG[1]);
-  }
-  /* ../lib/standard/string.nit:1016 */
-  fra.me.REG[1] = ATTR_standard___string___Sys____args_cache(fra.me.REG[1]);
-  REGB0 = TAG_Bool(fra.me.REG[1]!=NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    nit_abort("Cast failed", NULL, LOCATE_standard___string, 1016);
-  }
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[1];
-}
-static const char LOCATE_standard___string___Sys___program_name[] = "string::Sys::program_name";
-val_t standard___string___Sys___program_name(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_standard___string;
-  fra.me.line = 1019;
-  fra.me.meth = LOCATE_standard___string___Sys___program_name;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:1022 */
-  REGB0 = TAG_Int(0);
-  /* ../lib/standard/string.nit:1041 */
-  fra.me.REG[0] = BOX_NativeString(glob_argv[UNTAG_Int(REGB0)]);
-  /* ../lib/standard/string.nit:1022 */
-  fra.me.REG[0] = CALL_standard___string___Object___to_s(fra.me.REG[0])(fra.me.REG[0]);
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}
-static const char LOCATE_standard___string___Sys___init_args[] = "string::Sys::init_args";
-void standard___string___Sys___init_args(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_standard___string;
-  fra.me.line = 1025;
-  fra.me.meth = LOCATE_standard___string___Sys___init_args;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 3;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[2] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:1038 */
-  REGB0 = TAG_Int(glob_argc);
-  /* ../lib/standard/string.nit:1029 */
-  REGB1 = TAG_Int(0);
-  fra.me.REG[1] = NEW_Array_standard___collection___array___Array___with_capacity(REGB1);
-  /* ../lib/standard/string.nit:1030 */
-  REGB1 = TAG_Int(1);
-  /* ../lib/standard/string.nit:1031 */
-  while(1) {
-    REGB2 = TAG_Bool(VAL_ISA(REGB0, VTCOLOR_standard___kernel___Comparable___OTHER(REGB1), VTID_standard___kernel___Comparable___OTHER(REGB1))) /*cast OTHER*/;
-    if (UNTAG_Bool(REGB2)) {
-    } else {
-      nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
-    }
-    /* ../lib/standard/kernel.nit:242 */
-    REGB2 = TAG_Bool(UNTAG_Int(REGB1)<UNTAG_Int(REGB0));
-    /* ../lib/standard/string.nit:1031 */
-    if (UNTAG_Bool(REGB2)) {
-      /* ../lib/standard/string.nit:1032 */
-      REGB2 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:247 */
-      REGB2 = TAG_Int(UNTAG_Int(REGB1)-UNTAG_Int(REGB2));
-      /* ../lib/standard/string.nit:1041 */
-      fra.me.REG[2] = BOX_NativeString(glob_argv[UNTAG_Int(REGB1)]);
-      /* ../lib/standard/string.nit:1032 */
-      fra.me.REG[2] = CALL_standard___string___Object___to_s(fra.me.REG[2])(fra.me.REG[2]);
-      CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[1])(fra.me.REG[1], REGB2, fra.me.REG[2]);
-      /* ../lib/standard/string.nit:1033 */
-      REGB2 = TAG_Int(1);
-      /* ../lib/standard/kernel.nit:245 */
-      REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
-      /* ../lib/standard/string.nit:1033 */
-      REGB1 = REGB2;
-    } else {
-      /* ../lib/standard/string.nit:1031 */
-      goto label1;
-    }
-  }
-  label1: while(0);
-  /* ../lib/standard/string.nit:1035 */
-  ATTR_standard___string___Sys____args_cache(fra.me.REG[0]) = fra.me.REG[1];
-  stack_frame_head = fra.me.prev;
-  return;
-}
-static const char LOCATE_standard___string___Sys___native_argc[] = "string::Sys::native_argc";
-val_t standard___string___Sys___native_argc(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_standard___string;
-  fra.me.line = 1038;
-  fra.me.meth = LOCATE_standard___string___Sys___native_argc;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  /* ../lib/standard/string.nit:1038 */
-  REGB0 = TAG_Int(glob_argc);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
-static const char LOCATE_standard___string___Sys___native_argv[] = "string::Sys::native_argv";
-val_t standard___string___Sys___native_argv(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_standard___string;
-  fra.me.line = 1041;
-  fra.me.meth = LOCATE_standard___string___Sys___native_argv;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 1;
-  fra.me.nitni_local_ref_head = NULL;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  REGB0 = p1;
-  /* ../lib/standard/string.nit:1041 */
-  fra.me.REG[0] = BOX_NativeString(glob_argv[UNTAG_Int(REGB0)]);
-  stack_frame_head = fra.me.prev;
-  return fra.me.REG[0];
-}