array.js

'use strict';

var Curry                   = require("./curry.js");
var Js_exn                  = require("./js_exn.js");
var Caml_array              = require("./caml_array.js");
var Caml_exceptions         = require("./caml_exceptions.js");
var Caml_builtin_exceptions = require("./caml_builtin_exceptions.js");

function init(l, f) {
  if (l) {
    if (l < 0) {
      throw [
            Caml_builtin_exceptions.invalid_argument,
            "Array.init"
          ];
    } else {
      var res = Caml_array.caml_make_vect(l, Curry._1(f, 0));
      for(var i = 1 ,i_finish = l - 1 | 0; i <= i_finish; ++i){
        res[i] = Curry._1(f, i);
      }
      return res;
    }
  } else {
    return /* array */[];
  }
}

function make_matrix(sx, sy, init) {
  var res = Caml_array.caml_make_vect(sx, /* array */[]);
  for(var x = 0 ,x_finish = sx - 1 | 0; x <= x_finish; ++x){
    res[x] = Caml_array.caml_make_vect(sy, init);
  }
  return res;
}

function copy(a) {
  var l = a.length;
  if (l) {
    return Caml_array.caml_array_sub(a, 0, l);
  } else {
    return /* array */[];
  }
}

function append(a1, a2) {
  var l1 = a1.length;
  if (l1) {
    if (a2.length) {
      return a1.concat(a2);
    } else {
      return Caml_array.caml_array_sub(a1, 0, l1);
    }
  } else {
    return copy(a2);
  }
}

function sub(a, ofs, len) {
  if (len < 0 || ofs > (a.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "Array.sub"
        ];
  } else {
    return Caml_array.caml_array_sub(a, ofs, len);
  }
}

function fill(a, ofs, len, v) {
  if (ofs < 0 || len < 0 || ofs > (a.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "Array.fill"
        ];
  } else {
    for(var i = ofs ,i_finish = (ofs + len | 0) - 1 | 0; i <= i_finish; ++i){
      a[i] = v;
    }
    return /* () */0;
  }
}

function blit(a1, ofs1, a2, ofs2, len) {
  if (len < 0 || ofs1 < 0 || ofs1 > (a1.length - len | 0) || ofs2 < 0 || ofs2 > (a2.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "Array.blit"
        ];
  } else {
    return Caml_array.caml_array_blit(a1, ofs1, a2, ofs2, len);
  }
}

function iter(f, a) {
  for(var i = 0 ,i_finish = a.length - 1 | 0; i <= i_finish; ++i){
    Curry._1(f, a[i]);
  }
  return /* () */0;
}

function map(f, a) {
  var l = a.length;
  if (l) {
    var r = Caml_array.caml_make_vect(l, Curry._1(f, a[0]));
    for(var i = 1 ,i_finish = l - 1 | 0; i <= i_finish; ++i){
      r[i] = Curry._1(f, a[i]);
    }
    return r;
  } else {
    return /* array */[];
  }
}

function iteri(f, a) {
  for(var i = 0 ,i_finish = a.length - 1 | 0; i <= i_finish; ++i){
    Curry._2(f, i, a[i]);
  }
  return /* () */0;
}

function mapi(f, a) {
  var l = a.length;
  if (l) {
    var r = Caml_array.caml_make_vect(l, Curry._2(f, 0, a[0]));
    for(var i = 1 ,i_finish = l - 1 | 0; i <= i_finish; ++i){
      r[i] = Curry._2(f, i, a[i]);
    }
    return r;
  } else {
    return /* array */[];
  }
}

function to_list(a) {
  var _i = a.length - 1 | 0;
  var _res = /* [] */0;
  while(true) {
    var res = _res;
    var i = _i;
    if (i < 0) {
      return res;
    } else {
      _res = /* :: */[
        a[i],
        res
      ];
      _i = i - 1 | 0;
      continue ;
      
    }
  };
}

function list_length(_accu, _param) {
  while(true) {
    var param = _param;
    var accu = _accu;
    if (param) {
      _param = param[1];
      _accu = accu + 1 | 0;
      continue ;
      
    } else {
      return accu;
    }
  };
}

function of_list(l) {
  if (l) {
    var a = Caml_array.caml_make_vect(list_length(0, l), l[0]);
    var _i = 1;
    var _param = l[1];
    while(true) {
      var param = _param;
      var i = _i;
      if (param) {
        a[i] = param[0];
        _param = param[1];
        _i = i + 1 | 0;
        continue ;
        
      } else {
        return a;
      }
    };
  } else {
    return /* array */[];
  }
}

function fold_left(f, x, a) {
  var r = x;
  for(var i = 0 ,i_finish = a.length - 1 | 0; i <= i_finish; ++i){
    r = Curry._2(f, r, a[i]);
  }
  return r;
}

function fold_right(f, a, x) {
  var r = x;
  for(var i = a.length - 1 | 0; i >= 0; --i){
    r = Curry._2(f, a[i], r);
  }
  return r;
}

var Bottom = Caml_exceptions.create("Array.Bottom");

function sort(cmp, a) {
  var maxson = function (l, i) {
    var i31 = ((i + i | 0) + i | 0) + 1 | 0;
    var x = i31;
    if ((i31 + 2 | 0) < l) {
      if (Curry._2(cmp, Caml_array.caml_array_get(a, i31), Caml_array.caml_array_get(a, i31 + 1 | 0)) < 0) {
        x = i31 + 1 | 0;
      }
      if (Curry._2(cmp, Caml_array.caml_array_get(a, x), Caml_array.caml_array_get(a, i31 + 2 | 0)) < 0) {
        x = i31 + 2 | 0;
      }
      return x;
    } else if ((i31 + 1 | 0) < l && Curry._2(cmp, Caml_array.caml_array_get(a, i31), Caml_array.caml_array_get(a, i31 + 1 | 0)) < 0) {
      return i31 + 1 | 0;
    } else if (i31 < l) {
      return i31;
    } else {
      throw [
            Bottom,
            i
          ];
    }
  };
  var trickle = function (l, i, e) {
    try {
      var l$1 = l;
      var _i = i;
      var e$1 = e;
      while(true) {
        var i$1 = _i;
        var j = maxson(l$1, i$1);
        if (Curry._2(cmp, Caml_array.caml_array_get(a, j), e$1) > 0) {
          Caml_array.caml_array_set(a, i$1, Caml_array.caml_array_get(a, j));
          _i = j;
          continue ;
          
        } else {
          return Caml_array.caml_array_set(a, i$1, e$1);
        }
      };
    }
    catch (raw_exn){
      var exn = Js_exn.internalToOCamlException(raw_exn);
      if (exn[0] === Bottom) {
        return Caml_array.caml_array_set(a, exn[1], e);
      } else {
        throw exn;
      }
    }
  };
  var bubble = function (l, i) {
    try {
      var l$1 = l;
      var _i = i;
      while(true) {
        var i$1 = _i;
        var j = maxson(l$1, i$1);
        Caml_array.caml_array_set(a, i$1, Caml_array.caml_array_get(a, j));
        _i = j;
        continue ;
        
      };
    }
    catch (raw_exn){
      var exn = Js_exn.internalToOCamlException(raw_exn);
      if (exn[0] === Bottom) {
        return exn[1];
      } else {
        throw exn;
      }
    }
  };
  var trickleup = function (_i, e) {
    while(true) {
      var i = _i;
      var father = (i - 1 | 0) / 3 | 0;
      if (i === father) {
        throw [
              Caml_builtin_exceptions.assert_failure,
              [
                "array.ml",
                168,
                4
              ]
            ];
      }
      if (Curry._2(cmp, Caml_array.caml_array_get(a, father), e) < 0) {
        Caml_array.caml_array_set(a, i, Caml_array.caml_array_get(a, father));
        if (father > 0) {
          _i = father;
          continue ;
          
        } else {
          return Caml_array.caml_array_set(a, 0, e);
        }
      } else {
        return Caml_array.caml_array_set(a, i, e);
      }
    };
  };
  var l = a.length;
  for(var i = ((l + 1 | 0) / 3 | 0) - 1 | 0; i >= 0; --i){
    trickle(l, i, Caml_array.caml_array_get(a, i));
  }
  for(var i$1 = l - 1 | 0; i$1 >= 2; --i$1){
    var e = Caml_array.caml_array_get(a, i$1);
    Caml_array.caml_array_set(a, i$1, Caml_array.caml_array_get(a, 0));
    trickleup(bubble(i$1, 0), e);
  }
  if (l > 1) {
    var e$1 = Caml_array.caml_array_get(a, 1);
    Caml_array.caml_array_set(a, 1, Caml_array.caml_array_get(a, 0));
    return Caml_array.caml_array_set(a, 0, e$1);
  } else {
    return 0;
  }
}

function stable_sort(cmp, a) {
  var merge = function (src1ofs, src1len, src2, src2ofs, src2len, dst, dstofs) {
    var src1r = src1ofs + src1len | 0;
    var src2r = src2ofs + src2len | 0;
    var _i1 = src1ofs;
    var _s1 = Caml_array.caml_array_get(a, src1ofs);
    var _i2 = src2ofs;
    var _s2 = Caml_array.caml_array_get(src2, src2ofs);
    var _d = dstofs;
    while(true) {
      var d = _d;
      var s2 = _s2;
      var i2 = _i2;
      var s1 = _s1;
      var i1 = _i1;
      if (Curry._2(cmp, s1, s2) <= 0) {
        Caml_array.caml_array_set(dst, d, s1);
        var i1$1 = i1 + 1 | 0;
        if (i1$1 < src1r) {
          _d = d + 1 | 0;
          _s1 = Caml_array.caml_array_get(a, i1$1);
          _i1 = i1$1;
          continue ;
          
        } else {
          return blit(src2, i2, dst, d + 1 | 0, src2r - i2 | 0);
        }
      } else {
        Caml_array.caml_array_set(dst, d, s2);
        var i2$1 = i2 + 1 | 0;
        if (i2$1 < src2r) {
          _d = d + 1 | 0;
          _s2 = Caml_array.caml_array_get(src2, i2$1);
          _i2 = i2$1;
          continue ;
          
        } else {
          return blit(a, i1, dst, d + 1 | 0, src1r - i1 | 0);
        }
      }
    };
  };
  var isortto = function (srcofs, dst, dstofs, len) {
    for(var i = 0 ,i_finish = len - 1 | 0; i <= i_finish; ++i){
      var e = Caml_array.caml_array_get(a, srcofs + i | 0);
      var j = (dstofs + i | 0) - 1 | 0;
      while(j >= dstofs && Curry._2(cmp, Caml_array.caml_array_get(dst, j), e) > 0) {
        Caml_array.caml_array_set(dst, j + 1 | 0, Caml_array.caml_array_get(dst, j));
        j = j - 1 | 0;
      };
      Caml_array.caml_array_set(dst, j + 1 | 0, e);
    }
    return /* () */0;
  };
  var sortto = function (srcofs, dst, dstofs, len) {
    if (len <= 5) {
      return isortto(srcofs, dst, dstofs, len);
    } else {
      var l1 = len / 2 | 0;
      var l2 = len - l1 | 0;
      sortto(srcofs + l1 | 0, dst, dstofs + l1 | 0, l2);
      sortto(srcofs, a, srcofs + l2 | 0, l1);
      return merge(srcofs + l2 | 0, l1, dst, dstofs + l1 | 0, l2, dst, dstofs);
    }
  };
  var l = a.length;
  if (l <= 5) {
    return isortto(0, a, 0, l);
  } else {
    var l1 = l / 2 | 0;
    var l2 = l - l1 | 0;
    var t = Caml_array.caml_make_vect(l2, Caml_array.caml_array_get(a, 0));
    sortto(l1, t, 0, l2);
    sortto(0, a, l2, l1);
    return merge(l2, l1, t, 0, l2, a, 0);
  }
}

var create_matrix = make_matrix;

var concat = Caml_array.caml_array_concat;

var fast_sort = stable_sort;

exports.init          = init;
exports.make_matrix   = make_matrix;
exports.create_matrix = create_matrix;
exports.append        = append;
exports.concat        = concat;
exports.sub           = sub;
exports.copy          = copy;
exports.fill          = fill;
exports.blit          = blit;
exports.to_list       = to_list;
exports.of_list       = of_list;
exports.iter          = iter;
exports.map           = map;
exports.iteri         = iteri;
exports.mapi          = mapi;
exports.fold_left     = fold_left;
exports.fold_right    = fold_right;
exports.sort          = sort;
exports.stable_sort   = stable_sort;
exports.fast_sort     = fast_sort;
/* No side effect */