atom-nuclide/pkg/nuclide-reprint-js/lib/printers/simple/printProperty.js

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/*
 * Copyright (c) 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the license found in the LICENSE file in
 * the root directory of this source tree.
 */

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

var _utilsFlatten2;

function _utilsFlatten() {
  return _utilsFlatten2 = _interopRequireDefault(require('../../utils/flatten'));
}

var _constantsMarkers2;

function _constantsMarkers() {
  return _constantsMarkers2 = _interopRequireDefault(require('../../constants/markers'));
}

function printProperty(print, node) {
  var parts = [];

  if (node.kind === 'get') {
    parts = parts.concat(['get', (_constantsMarkers2 || _constantsMarkers()).default.noBreak, (_constantsMarkers2 || _constantsMarkers()).default.space]);
  } else if (node.kind === 'set') {
    parts = parts.concat(['set', (_constantsMarkers2 || _constantsMarkers()).default.noBreak, (_constantsMarkers2 || _constantsMarkers()).default.space]);
  }

  if (node.value && node.value.async) {
    parts = parts.concat(['async', (_constantsMarkers2 || _constantsMarkers()).default.noBreak, (_constantsMarkers2 || _constantsMarkers()).default.space]);
  }

  if (node.value && node.value.generator) {
    parts = parts.concat(['*', (_constantsMarkers2 || _constantsMarkers()).default.noBreak]);
  }

  if (node.computed) {
    parts = parts.concat(['[', (_constantsMarkers2 || _constantsMarkers()).default.noBreak, print(node.key), (_constantsMarkers2 || _constantsMarkers()).default.noBreak, ']', (_constantsMarkers2 || _constantsMarkers()).default.noBreak]);
  } else {
    parts = parts.concat([print(node.key), (_constantsMarkers2 || _constantsMarkers()).default.noBreak]);
  }

  // TODO: Force the scope to break when a property is a method. Or if the
  // value is a function expression.
  if (node.method) {
    parts = parts.concat([(_constantsMarkers2 || _constantsMarkers()).default.noBreak, print(node.value)]);
  } else if (!node.shorthand) {
    parts = parts.concat([':', (_constantsMarkers2 || _constantsMarkers()).default.noBreak, (_constantsMarkers2 || _constantsMarkers()).default.space, print(node.value)]);
  } else if (node.key.type !== node.value.type) {
    // This is a very strange case in the AST where we are in a shorthand
    // property but key and value do not have the same type. This can happen
    // when using defaults in an object pattern. E.g:
    //
    //   var {x = 4} = a;
    //
    // x is shorthand but its value is an assignment expression. In this case
    // we will just print the value.
    parts = [print(node.value)];
  }

  return (0, (_utilsFlatten2 || _utilsFlatten()).default)(parts);
}

module.exports = printProperty;