🐛 bug report

Running --experimental-scope-hoisting will fail to bundle an app claiming that an library is not exporting a file. I checked node modules to see if this was the case, but it’s not. The function is being exported.

Error when bucklescript outputs es modules:

Error when bucklescript outputs commonjs:

Code the error refers to node_modules/react-infinite-calendar/es/Calendar/withDateSelection.js:

import _withState from 'recompose/withState';
import _withPropsOnChange from 'recompose/withPropsOnChange';
import _withProps from 'recompose/withProps';
import _compose from 'recompose/compose';

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

import { withDefaultProps } from './';
import { sanitizeDate, withImmutableProps } from '../utils';
import format from 'date-fns/format';
import parse from 'date-fns/parse';

export var enhanceDay = _withPropsOnChange(['selected'], function (props) {
  return {
    isSelected: props.selected === props.date
  };
});

var enhanceYear = _withPropsOnChange(['selected'], function (_ref) {
  var selected = _ref.selected;
  return {
    selected: parse(selected)
  };
});

// Enhancer to handle selecting and displaying a single date
var withDateSelection = _compose(withDefaultProps, withImmutableProps(function (_ref2) {
  var DayComponent = _ref2.DayComponent,
      onSelect = _ref2.onSelect,
      setScrollDate = _ref2.setScrollDate,
      YearsComponent = _ref2.YearsComponent;
  return {
    DayComponent: enhanceDay(DayComponent),
    YearsComponent: enhanceYear(YearsComponent)
  };
}), _withState('scrollDate', 'setScrollDate', function (props) {
  return props.selected || new Date();
}), _withProps(function (_ref3) {
  var _onSelect = _ref3.onSelect,
      setScrollDate = _ref3.setScrollDate,
      props = _objectWithoutProperties(_ref3, ['onSelect', 'setScrollDate']);

  var selected = sanitizeDate(props.selected, props);

  return {
    passThrough: {
      Day: {
        onClick: _onSelect
      },
      Years: {
        onSelect: function onSelect(year) {
          return handleYearSelect(year, { onSelect: _onSelect, selected: selected, setScrollDate: setScrollDate });
        }
      }
    },
    selected: selected && format(selected, 'YYYY-MM-DD')
  };
}));

export { withDateSelection };
function handleYearSelect(date, _ref4) {
  var setScrollDate = _ref4.setScrollDate,
      selected = _ref4.selected,
      onSelect = _ref4.onSelect;

  var newDate = parse(date);

  onSelect(newDate);
  setScrollDate(newDate);
}

🎛 Configuration (.babelrc, package.json, cli command)

bsconfig:

{
  "name": "...",
  "bs-dependencies": [
    "reason-react",
    "bs-fetch",
    "@glennsl/bs-json",
    "bs-css",
    "regql"
  ],
  "ppx-flags": ["graphql_ppx/ppx"],
  "reason": {
    "react-jsx": 2
  },
  "refmt": 3,
  "sources": ["vcomponents", "components", "pages", "styles"],
  // "package-specs": ["es6-global"],
  "bsc-flags": ["-bs-super-errors"]
}

package.json:

{
  "name": "....",
  "version": "0.1.0",
  "description": "....",
  "main": "index.js",
  "private": true,
  "dependencies": {
    "@glennsl/bs-json": "^2.0.0",
    "bs-css": "^6.7.0",
    "bs-fetch": "^0.3.0",
    "cross-env": "^5.2.0",
    "graphql_ppx": "^0.2.3",
    "prismjs": "^1.14.0",
    "react-addons-css-transition-group": "^15.6.2",
    "react-infinite-calendar": "^2.3.1",
    "react-markdown": "^3.3.3",
    "reason-react": "0.4.2",
    "regql": "0.5.0-beta.10",
    "serve": "^8.2.0",
    "stijs": "^1.0.0",
    "typeface-catamaran": "^0.0.54",
    "typeface-montserrat": "^0.0.54"
  },
  "devDependencies": {
    "bs-platform": "3.1.5",
    "parcel-bundler": "1.9.0"
  }
}

🤔 Expected Behavior

Should bundle application

😯 Current Behavior

fails to bundle application

🔦 Context

Trying to add tree shaking to existing applications using parcel. Hope this helps find bugs in the new scope hoisting feature.

🌍 Your Environment

Software	Version(s)
Parcel	1.9.0
Node	10.4.0
npm/Yarn	1.7.0
Operating System	macOS