Пример #1
0
  ESBase slice(Call eval, int length) throws Throwable {
    ESObject obj = eval.getArg(-1).toObject();

    ESBase lenObj = obj.getProperty(LENGTH);
    int len = lenObj.toInt32();

    ESArray array = Global.getGlobalProto().createArray();
    if (len <= 0) return array;

    int start = 0;
    if (length > 0) start = eval.getArg(0).toInt32();
    if (start < 0) start += len;
    if (start < 0) start = 0;
    if (start > len) return array;

    int end = len;
    if (length > 1) end = eval.getArg(1).toInt32();
    if (end < 0) end += len;
    if (end < 0) return array;
    if (end > len) end = len;

    if (start >= end) return array;

    for (int i = 0; i < end - start; i++) {
      ESBase value = obj.hasProperty(start + i);

      if (value != null) array.setProperty(i, value);
    }

    array.setProperty(LENGTH, ESNumber.create(end - start));

    return array;
  }
Пример #2
0
  /** Creates the native Array object */
  static ESObject create(Global resin) {
    Native nativeArray = new NativeArray("Array", NEW, 1);
    ESArray proto = new ESArray();
    proto.prototype = resin.objProto;
    NativeWrapper array = new NativeWrapper(resin, nativeArray, proto, ESThunk.ARRAY_THUNK);
    resin.arrayProto = proto;

    put(proto, "join", JOIN, 1);
    put(proto, "toString", TO_STRING, 0);
    put(proto, "reverse", REVERSE, 0);
    put(proto, "sort", SORT, 0);

    // js1.2
    put(proto, "concat", CONCAT, 0);
    put(proto, "pop", POP, 0);
    put(proto, "push", PUSH, 0);
    put(proto, "shift", SHIFT, 0);
    put(proto, "unshift", UNSHIFT, 0);
    put(proto, "slice", SLICE, 2);
    put(proto, "splice", SPLICE, 0);

    proto.setClean();
    array.setClean();

    return array;
  }
Пример #3
0
  ESBase concat(Call eval, int length) throws Throwable {
    ESArray array = Global.getGlobalProto().createArray();

    int k = 0;
    for (int i = -1; i < length; i++) {
      ESBase arg = eval.getArg(i);

      if (arg == esNull || arg == esUndefined || arg == esEmpty) continue;

      ESBase arglen = arg.hasProperty(LENGTH);

      if (arglen == null) {
        array.setProperty(k++, arg);
        continue;
      }

      int len = (int) arglen.toInt32();

      if (len < 0) {
        array.setProperty(k++, arg);
        continue;
      }

      for (int j = 0; j < len; j++) {
        ESBase obj = arg.hasProperty(j);

        if (obj != null) array.setProperty(k, obj);
        k++;
      }
    }
    array.setProperty(LENGTH, ESNumber.create(k));

    return array;
  }