type.js

/*
 * Simple data function to store type information
 * @param {string} type Usually what is returned from typeof
 * @param {string} cls  Sanitized @Class via Object.prototype.toString
 * @param {string} sub  If type and cls the same, and need to specify somehow
 * @private
 * @example
 *
 * //for null
 * new Type('null');
 *
 * //for Date
 * new Type('object', 'date');
 *
 * //for Uint8Array
 *
 * new Type('object', 'typed-array', 'uint8');
 */
export function Type(type, cls, sub) {
  if (!type) {
    throw new Error('Type class must be initialized at least with `type` information');
  }
  this.type = type;
  this.cls = cls;
  this.sub = sub;
}

Type.prototype = {
  toString: function(sep) {
    sep = sep || ';';
    var str = [this.type];
    if (this.cls) {
      str.push(this.cls);
    }
    if (this.sub) {
      str.push(this.sub);
    }
    return str.join(sep);
  },

  toTryTypes: function() {
    var _types = [];
    if (this.sub) {
      _types.push(new Type(this.type, this.cls, this.sub));
    }
    if (this.cls) {
      _types.push(new Type(this.type, this.cls));
    }
    _types.push(new Type(this.type));

    return _types;
  }
};