elliptical/lib-browser/phrases/placeholder.js

Interactive natural-language interfaces

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _regenerator = require('babel-runtime/regenerator');

var _regenerator2 = _interopRequireDefault(_regenerator);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var _marked = [visit, parseChild].map(_regenerator2.default.mark);

var defaultProps = {
  suppress: true,
  suppressEmpty: true
};

function visit(option, _ref, traverse) {
  var props = _ref.props;
  var children = _ref.children;
  var child;
  return _regenerator2.default.wrap(function visit$(_context) {
    while (1) {
      switch (_context.prev = _context.next) {
        case 0:
          props = _lodash2.default.defaults({}, props, defaultProps);
          child = children[0];

          if (!(props.suppress && option.text == null || props.suppressEmpty && option.text === '' || props.suppressWhen && props.suppressWhen(option.text))) {
            _context.next = 7;
            break;
          }

          _context.next = 5;
          return outputSelf(option, child, props);

        case 5:
          _context.next = 8;
          break;

        case 7:
          return _context.delegateYield(parseChild(option, child, props, traverse), 't0', 8);

        case 8:
        case 'end':
          return _context.stop();
      }
    }
  }, _marked[0], this);
}

function parseChild(option, child, props, traverse) {
  var _iteratorNormalCompletion, _didIteratorError, _iteratorError, _iterator, _step, output;

  return _regenerator2.default.wrap(function parseChild$(_context2) {
    while (1) {
      switch (_context2.prev = _context2.next) {
        case 0:
          _iteratorNormalCompletion = true;
          _didIteratorError = false;
          _iteratorError = undefined;
          _context2.prev = 3;
          _iterator = traverse(child, option)[Symbol.iterator]();

        case 5:
          if (_iteratorNormalCompletion = (_step = _iterator.next()).done) {
            _context2.next = 12;
            break;
          }

          output = _step.value;
          _context2.next = 9;
          return output;

        case 9:
          _iteratorNormalCompletion = true;
          _context2.next = 5;
          break;

        case 12:
          _context2.next = 18;
          break;

        case 14:
          _context2.prev = 14;
          _context2.t0 = _context2['catch'](3);
          _didIteratorError = true;
          _iteratorError = _context2.t0;

        case 18:
          _context2.prev = 18;
          _context2.prev = 19;

          if (!_iteratorNormalCompletion && _iterator.return) {
            _iterator.return();
          }

        case 21:
          _context2.prev = 21;

          if (!_didIteratorError) {
            _context2.next = 24;
            break;
          }

          throw _iteratorError;

        case 24:
          return _context2.finish(21);

        case 25:
          return _context2.finish(18);

        case 26:
        case 'end':
          return _context2.stop();
      }
    }
  }, _marked[1], this, [[3, 14, 18, 26], [19,, 21, 25]]);
}

function outputSelf(option, child, props) {
  var word = {
    label: props.label,
    placeholder: true
  };

  var modification = {
    score: 0.01,
    result: undefined,
    text: null,
    words: option.words.concat(word)
  };

  return _lodash2.default.assign({}, option, modification);
}

exports.default = { visit: visit };