deep-iterator/lib/generators.js

Deep iteration of any object or iterable collection.

"use strict";

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

var _getIterator2 = require("babel-runtime/core-js/get-iterator");

var _getIterator3 = _interopRequireDefault(_getIterator2);

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

var _regenerator2 = _interopRequireDefault(_regenerator);

exports.objectIterator = objectIterator;
exports.arrayIterator = arrayIterator;
exports.genericIterator = genericIterator;
exports.mapIterator = mapIterator;

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

var _marked = [objectIterator, arrayIterator, genericIterator, mapIterator].map(_regenerator2.default.mark);

function objectIterator(obj) {
  var key;
  return _regenerator2.default.wrap(function objectIterator$(_context) {
    while (1) {
      switch (_context.prev = _context.next) {
        case 0:
          _context.t0 = _regenerator2.default.keys(obj);

        case 1:
          if ((_context.t1 = _context.t0()).done) {
            _context.next = 7;
            break;
          }

          key = _context.t1.value;
          _context.next = 5;
          return [key, obj[key]];

        case 5:
          _context.next = 1;
          break;

        case 7:
        case "end":
          return _context.stop();
      }
    }
  }, _marked[0], this);
}

function arrayIterator(arr) {
  var i;
  return _regenerator2.default.wrap(function arrayIterator$(_context2) {
    while (1) {
      switch (_context2.prev = _context2.next) {
        case 0:
          i = 0;

        case 1:
          if (!(i < arr.length)) {
            _context2.next = 7;
            break;
          }

          _context2.next = 4;
          return [i, arr[i]];

        case 4:
          i++;
          _context2.next = 1;
          break;

        case 7:
        case "end":
          return _context2.stop();
      }
    }
  }, _marked[1], this);
}

// transpiled generator has uncovered branches
// istanbul issue #645
/* istanbul ignore next */
function genericIterator(iterator) {
  var _iteratorNormalCompletion, _didIteratorError, _iteratorError, _iterator, _step, value;

  return _regenerator2.default.wrap(function genericIterator$(_context3) {
    while (1) {
      switch (_context3.prev = _context3.next) {
        case 0:
          _iteratorNormalCompletion = true;
          _didIteratorError = false;
          _iteratorError = undefined;
          _context3.prev = 3;
          _iterator = (0, _getIterator3.default)(iterator);

        case 5:
          if (_iteratorNormalCompletion = (_step = _iterator.next()).done) {
            _context3.next = 12;
            break;
          }

          value = _step.value;
          _context3.next = 9;
          return [undefined, value];

        case 9:
          _iteratorNormalCompletion = true;
          _context3.next = 5;
          break;

        case 12:
          _context3.next = 18;
          break;

        case 14:
          _context3.prev = 14;
          _context3.t0 = _context3["catch"](3);
          _didIteratorError = true;
          _iteratorError = _context3.t0;

        case 18:
          _context3.prev = 18;
          _context3.prev = 19;

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

        case 21:
          _context3.prev = 21;

          if (!_didIteratorError) {
            _context3.next = 24;
            break;
          }

          throw _iteratorError;

        case 24:
          return _context3.finish(21);

        case 25:
          return _context3.finish(18);

        case 26:
        case "end":
          return _context3.stop();
      }
    }
  }, _marked[2], this, [[3, 14, 18, 26], [19,, 21, 25]]);
}

// transpiled generator has uncovered branches
// istanbul issue #645
/* istanbul ignore next */
function mapIterator(iterator) {
  var _iteratorNormalCompletion2, _didIteratorError2, _iteratorError2, _iterator2, _step2, element;

  return _regenerator2.default.wrap(function mapIterator$(_context4) {
    while (1) {
      switch (_context4.prev = _context4.next) {
        case 0:
          _iteratorNormalCompletion2 = true;
          _didIteratorError2 = false;
          _iteratorError2 = undefined;
          _context4.prev = 3;
          _iterator2 = (0, _getIterator3.default)(iterator);

        case 5:
          if (_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done) {
            _context4.next = 12;
            break;
          }

          element = _step2.value;
          _context4.next = 9;
          return element;

        case 9:
          _iteratorNormalCompletion2 = true;
          _context4.next = 5;
          break;

        case 12:
          _context4.next = 18;
          break;

        case 14:
          _context4.prev = 14;
          _context4.t0 = _context4["catch"](3);
          _didIteratorError2 = true;
          _iteratorError2 = _context4.t0;

        case 18:
          _context4.prev = 18;
          _context4.prev = 19;

          if (!_iteratorNormalCompletion2 && _iterator2.return) {
            _iterator2.return();
          }

        case 21:
          _context4.prev = 21;

          if (!_didIteratorError2) {
            _context4.next = 24;
            break;
          }

          throw _iteratorError2;

        case 24:
          return _context4.finish(21);

        case 25:
          return _context4.finish(18);

        case 26:
        case "end":
          return _context4.stop();
      }
    }
  }, _marked[3], this, [[3, 14, 18, 26], [19,, 21, 25]]);
}

var LEAF = exports.LEAF = null;
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