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  1. "use strict";
  2. exports.__esModule = true;
  3. exports.createTypeAnnotationBasedOnTypeof = exports.removeTypeDuplicates = exports.createUnionTypeAnnotation = exports.valueToNode = exports.toBlock = exports.toExpression = exports.toStatement = exports.toBindingIdentifierName = exports.toIdentifier = exports.toKeyAlias = exports.toSequenceExpression = exports.toComputedKey = exports.isNodesEquivalent = exports.isImmutable = exports.isScope = exports.isSpecifierDefault = exports.isVar = exports.isBlockScoped = exports.isLet = exports.isValidIdentifier = exports.isReferenced = exports.isBinding = exports.getOuterBindingIdentifiers = exports.getBindingIdentifiers = exports.TYPES = exports.react = exports.DEPRECATED_KEYS = exports.BUILDER_KEYS = exports.NODE_FIELDS = exports.ALIAS_KEYS = exports.VISITOR_KEYS = exports.NOT_LOCAL_BINDING = exports.BLOCK_SCOPED_SYMBOL = exports.INHERIT_KEYS = exports.UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = exports.BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = exports.UPDATE_OPERATORS = exports.LOGICAL_OPERATORS = exports.COMMENT_KEYS = exports.FOR_INIT_KEYS = exports.FLATTENABLE_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = undefined;
  4. var _getOwnPropertySymbols = require("babel-runtime/core-js/object/get-own-property-symbols");
  5. var _getOwnPropertySymbols2 = _interopRequireDefault(_getOwnPropertySymbols);
  6. var _getIterator2 = require("babel-runtime/core-js/get-iterator");
  7. var _getIterator3 = _interopRequireDefault(_getIterator2);
  8. var _keys = require("babel-runtime/core-js/object/keys");
  9. var _keys2 = _interopRequireDefault(_keys);
  10. var _stringify = require("babel-runtime/core-js/json/stringify");
  11. var _stringify2 = _interopRequireDefault(_stringify);
  12. var _constants = require("./constants");
  13. Object.defineProperty(exports, "STATEMENT_OR_BLOCK_KEYS", {
  14. enumerable: true,
  15. get: function get() {
  16. return _constants.STATEMENT_OR_BLOCK_KEYS;
  17. }
  18. });
  19. Object.defineProperty(exports, "FLATTENABLE_KEYS", {
  20. enumerable: true,
  21. get: function get() {
  22. return _constants.FLATTENABLE_KEYS;
  23. }
  24. });
  25. Object.defineProperty(exports, "FOR_INIT_KEYS", {
  26. enumerable: true,
  27. get: function get() {
  28. return _constants.FOR_INIT_KEYS;
  29. }
  30. });
  31. Object.defineProperty(exports, "COMMENT_KEYS", {
  32. enumerable: true,
  33. get: function get() {
  34. return _constants.COMMENT_KEYS;
  35. }
  36. });
  37. Object.defineProperty(exports, "LOGICAL_OPERATORS", {
  38. enumerable: true,
  39. get: function get() {
  40. return _constants.LOGICAL_OPERATORS;
  41. }
  42. });
  43. Object.defineProperty(exports, "UPDATE_OPERATORS", {
  44. enumerable: true,
  45. get: function get() {
  46. return _constants.UPDATE_OPERATORS;
  47. }
  48. });
  49. Object.defineProperty(exports, "BOOLEAN_NUMBER_BINARY_OPERATORS", {
  50. enumerable: true,
  51. get: function get() {
  52. return _constants.BOOLEAN_NUMBER_BINARY_OPERATORS;
  53. }
  54. });
  55. Object.defineProperty(exports, "EQUALITY_BINARY_OPERATORS", {
  56. enumerable: true,
  57. get: function get() {
  58. return _constants.EQUALITY_BINARY_OPERATORS;
  59. }
  60. });
  61. Object.defineProperty(exports, "COMPARISON_BINARY_OPERATORS", {
  62. enumerable: true,
  63. get: function get() {
  64. return _constants.COMPARISON_BINARY_OPERATORS;
  65. }
  66. });
  67. Object.defineProperty(exports, "BOOLEAN_BINARY_OPERATORS", {
  68. enumerable: true,
  69. get: function get() {
  70. return _constants.BOOLEAN_BINARY_OPERATORS;
  71. }
  72. });
  73. Object.defineProperty(exports, "NUMBER_BINARY_OPERATORS", {
  74. enumerable: true,
  75. get: function get() {
  76. return _constants.NUMBER_BINARY_OPERATORS;
  77. }
  78. });
  79. Object.defineProperty(exports, "BINARY_OPERATORS", {
  80. enumerable: true,
  81. get: function get() {
  82. return _constants.BINARY_OPERATORS;
  83. }
  84. });
  85. Object.defineProperty(exports, "BOOLEAN_UNARY_OPERATORS", {
  86. enumerable: true,
  87. get: function get() {
  88. return _constants.BOOLEAN_UNARY_OPERATORS;
  89. }
  90. });
  91. Object.defineProperty(exports, "NUMBER_UNARY_OPERATORS", {
  92. enumerable: true,
  93. get: function get() {
  94. return _constants.NUMBER_UNARY_OPERATORS;
  95. }
  96. });
  97. Object.defineProperty(exports, "STRING_UNARY_OPERATORS", {
  98. enumerable: true,
  99. get: function get() {
  100. return _constants.STRING_UNARY_OPERATORS;
  101. }
  102. });
  103. Object.defineProperty(exports, "UNARY_OPERATORS", {
  104. enumerable: true,
  105. get: function get() {
  106. return _constants.UNARY_OPERATORS;
  107. }
  108. });
  109. Object.defineProperty(exports, "INHERIT_KEYS", {
  110. enumerable: true,
  111. get: function get() {
  112. return _constants.INHERIT_KEYS;
  113. }
  114. });
  115. Object.defineProperty(exports, "BLOCK_SCOPED_SYMBOL", {
  116. enumerable: true,
  117. get: function get() {
  118. return _constants.BLOCK_SCOPED_SYMBOL;
  119. }
  120. });
  121. Object.defineProperty(exports, "NOT_LOCAL_BINDING", {
  122. enumerable: true,
  123. get: function get() {
  124. return _constants.NOT_LOCAL_BINDING;
  125. }
  126. });
  127. exports.is = is;
  128. exports.isType = isType;
  129. exports.validate = validate;
  130. exports.shallowEqual = shallowEqual;
  131. exports.appendToMemberExpression = appendToMemberExpression;
  132. exports.prependToMemberExpression = prependToMemberExpression;
  133. exports.ensureBlock = ensureBlock;
  134. exports.clone = clone;
  135. exports.cloneWithoutLoc = cloneWithoutLoc;
  136. exports.cloneDeep = cloneDeep;
  137. exports.buildMatchMemberExpression = buildMatchMemberExpression;
  138. exports.removeComments = removeComments;
  139. exports.inheritsComments = inheritsComments;
  140. exports.inheritTrailingComments = inheritTrailingComments;
  141. exports.inheritLeadingComments = inheritLeadingComments;
  142. exports.inheritInnerComments = inheritInnerComments;
  143. exports.inherits = inherits;
  144. exports.assertNode = assertNode;
  145. exports.isNode = isNode;
  146. exports.traverseFast = traverseFast;
  147. exports.removeProperties = removeProperties;
  148. exports.removePropertiesDeep = removePropertiesDeep;
  149. var _retrievers = require("./retrievers");
  150. Object.defineProperty(exports, "getBindingIdentifiers", {
  151. enumerable: true,
  152. get: function get() {
  153. return _retrievers.getBindingIdentifiers;
  154. }
  155. });
  156. Object.defineProperty(exports, "getOuterBindingIdentifiers", {
  157. enumerable: true,
  158. get: function get() {
  159. return _retrievers.getOuterBindingIdentifiers;
  160. }
  161. });
  162. var _validators = require("./validators");
  163. Object.defineProperty(exports, "isBinding", {
  164. enumerable: true,
  165. get: function get() {
  166. return _validators.isBinding;
  167. }
  168. });
  169. Object.defineProperty(exports, "isReferenced", {
  170. enumerable: true,
  171. get: function get() {
  172. return _validators.isReferenced;
  173. }
  174. });
  175. Object.defineProperty(exports, "isValidIdentifier", {
  176. enumerable: true,
  177. get: function get() {
  178. return _validators.isValidIdentifier;
  179. }
  180. });
  181. Object.defineProperty(exports, "isLet", {
  182. enumerable: true,
  183. get: function get() {
  184. return _validators.isLet;
  185. }
  186. });
  187. Object.defineProperty(exports, "isBlockScoped", {
  188. enumerable: true,
  189. get: function get() {
  190. return _validators.isBlockScoped;
  191. }
  192. });
  193. Object.defineProperty(exports, "isVar", {
  194. enumerable: true,
  195. get: function get() {
  196. return _validators.isVar;
  197. }
  198. });
  199. Object.defineProperty(exports, "isSpecifierDefault", {
  200. enumerable: true,
  201. get: function get() {
  202. return _validators.isSpecifierDefault;
  203. }
  204. });
  205. Object.defineProperty(exports, "isScope", {
  206. enumerable: true,
  207. get: function get() {
  208. return _validators.isScope;
  209. }
  210. });
  211. Object.defineProperty(exports, "isImmutable", {
  212. enumerable: true,
  213. get: function get() {
  214. return _validators.isImmutable;
  215. }
  216. });
  217. Object.defineProperty(exports, "isNodesEquivalent", {
  218. enumerable: true,
  219. get: function get() {
  220. return _validators.isNodesEquivalent;
  221. }
  222. });
  223. var _converters = require("./converters");
  224. Object.defineProperty(exports, "toComputedKey", {
  225. enumerable: true,
  226. get: function get() {
  227. return _converters.toComputedKey;
  228. }
  229. });
  230. Object.defineProperty(exports, "toSequenceExpression", {
  231. enumerable: true,
  232. get: function get() {
  233. return _converters.toSequenceExpression;
  234. }
  235. });
  236. Object.defineProperty(exports, "toKeyAlias", {
  237. enumerable: true,
  238. get: function get() {
  239. return _converters.toKeyAlias;
  240. }
  241. });
  242. Object.defineProperty(exports, "toIdentifier", {
  243. enumerable: true,
  244. get: function get() {
  245. return _converters.toIdentifier;
  246. }
  247. });
  248. Object.defineProperty(exports, "toBindingIdentifierName", {
  249. enumerable: true,
  250. get: function get() {
  251. return _converters.toBindingIdentifierName;
  252. }
  253. });
  254. Object.defineProperty(exports, "toStatement", {
  255. enumerable: true,
  256. get: function get() {
  257. return _converters.toStatement;
  258. }
  259. });
  260. Object.defineProperty(exports, "toExpression", {
  261. enumerable: true,
  262. get: function get() {
  263. return _converters.toExpression;
  264. }
  265. });
  266. Object.defineProperty(exports, "toBlock", {
  267. enumerable: true,
  268. get: function get() {
  269. return _converters.toBlock;
  270. }
  271. });
  272. Object.defineProperty(exports, "valueToNode", {
  273. enumerable: true,
  274. get: function get() {
  275. return _converters.valueToNode;
  276. }
  277. });
  278. var _flow = require("./flow");
  279. Object.defineProperty(exports, "createUnionTypeAnnotation", {
  280. enumerable: true,
  281. get: function get() {
  282. return _flow.createUnionTypeAnnotation;
  283. }
  284. });
  285. Object.defineProperty(exports, "removeTypeDuplicates", {
  286. enumerable: true,
  287. get: function get() {
  288. return _flow.removeTypeDuplicates;
  289. }
  290. });
  291. Object.defineProperty(exports, "createTypeAnnotationBasedOnTypeof", {
  292. enumerable: true,
  293. get: function get() {
  294. return _flow.createTypeAnnotationBasedOnTypeof;
  295. }
  296. });
  297. var _toFastProperties = require("to-fast-properties");
  298. var _toFastProperties2 = _interopRequireDefault(_toFastProperties);
  299. var _clone = require("lodash/clone");
  300. var _clone2 = _interopRequireDefault(_clone);
  301. var _uniq = require("lodash/uniq");
  302. var _uniq2 = _interopRequireDefault(_uniq);
  303. require("./definitions/init");
  304. var _definitions = require("./definitions");
  305. var _react2 = require("./react");
  306. var _react = _interopRequireWildcard(_react2);
  307. function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
  308. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  309. var t = exports;
  310. function registerType(type) {
  311. var is = t["is" + type];
  312. if (!is) {
  313. is = t["is" + type] = function (node, opts) {
  314. return t.is(type, node, opts);
  315. };
  316. }
  317. t["assert" + type] = function (node, opts) {
  318. opts = opts || {};
  319. if (!is(node, opts)) {
  320. throw new Error("Expected type " + (0, _stringify2.default)(type) + " with option " + (0, _stringify2.default)(opts));
  321. }
  322. };
  323. }
  324. exports.VISITOR_KEYS = _definitions.VISITOR_KEYS;
  325. exports.ALIAS_KEYS = _definitions.ALIAS_KEYS;
  326. exports.NODE_FIELDS = _definitions.NODE_FIELDS;
  327. exports.BUILDER_KEYS = _definitions.BUILDER_KEYS;
  328. exports.DEPRECATED_KEYS = _definitions.DEPRECATED_KEYS;
  329. exports.react = _react;
  330. for (var type in t.VISITOR_KEYS) {
  331. registerType(type);
  332. }
  333. t.FLIPPED_ALIAS_KEYS = {};
  334. (0, _keys2.default)(t.ALIAS_KEYS).forEach(function (type) {
  335. t.ALIAS_KEYS[type].forEach(function (alias) {
  336. var types = t.FLIPPED_ALIAS_KEYS[alias] = t.FLIPPED_ALIAS_KEYS[alias] || [];
  337. types.push(type);
  338. });
  339. });
  340. (0, _keys2.default)(t.FLIPPED_ALIAS_KEYS).forEach(function (type) {
  341. t[type.toUpperCase() + "_TYPES"] = t.FLIPPED_ALIAS_KEYS[type];
  342. registerType(type);
  343. });
  344. var TYPES = exports.TYPES = (0, _keys2.default)(t.VISITOR_KEYS).concat((0, _keys2.default)(t.FLIPPED_ALIAS_KEYS)).concat((0, _keys2.default)(t.DEPRECATED_KEYS));
  345. function is(type, node, opts) {
  346. if (!node) return false;
  347. var matches = isType(node.type, type);
  348. if (!matches) return false;
  349. if (typeof opts === "undefined") {
  350. return true;
  351. } else {
  352. return t.shallowEqual(node, opts);
  353. }
  354. }
  355. function isType(nodeType, targetType) {
  356. if (nodeType === targetType) return true;
  357. if (t.ALIAS_KEYS[targetType]) return false;
  358. var aliases = t.FLIPPED_ALIAS_KEYS[targetType];
  359. if (aliases) {
  360. if (aliases[0] === nodeType) return true;
  361. for (var _iterator = aliases, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
  362. var _ref;
  363. if (_isArray) {
  364. if (_i >= _iterator.length) break;
  365. _ref = _iterator[_i++];
  366. } else {
  367. _i = _iterator.next();
  368. if (_i.done) break;
  369. _ref = _i.value;
  370. }
  371. var alias = _ref;
  372. if (nodeType === alias) return true;
  373. }
  374. }
  375. return false;
  376. }
  377. (0, _keys2.default)(t.BUILDER_KEYS).forEach(function (type) {
  378. var keys = t.BUILDER_KEYS[type];
  379. function builder() {
  380. if (arguments.length > keys.length) {
  381. throw new Error("t." + type + ": Too many arguments passed. Received " + arguments.length + " but can receive " + ("no more than " + keys.length));
  382. }
  383. var node = {};
  384. node.type = type;
  385. var i = 0;
  386. for (var _iterator2 = keys, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
  387. var _ref2;
  388. if (_isArray2) {
  389. if (_i2 >= _iterator2.length) break;
  390. _ref2 = _iterator2[_i2++];
  391. } else {
  392. _i2 = _iterator2.next();
  393. if (_i2.done) break;
  394. _ref2 = _i2.value;
  395. }
  396. var _key = _ref2;
  397. var field = t.NODE_FIELDS[type][_key];
  398. var arg = arguments[i++];
  399. if (arg === undefined) arg = (0, _clone2.default)(field.default);
  400. node[_key] = arg;
  401. }
  402. for (var key in node) {
  403. validate(node, key, node[key]);
  404. }
  405. return node;
  406. }
  407. t[type] = builder;
  408. t[type[0].toLowerCase() + type.slice(1)] = builder;
  409. });
  410. var _loop = function _loop(_type) {
  411. var newType = t.DEPRECATED_KEYS[_type];
  412. function proxy(fn) {
  413. return function () {
  414. console.trace("The node type " + _type + " has been renamed to " + newType);
  415. return fn.apply(this, arguments);
  416. };
  417. }
  418. t[_type] = t[_type[0].toLowerCase() + _type.slice(1)] = proxy(t[newType]);
  419. t["is" + _type] = proxy(t["is" + newType]);
  420. t["assert" + _type] = proxy(t["assert" + newType]);
  421. };
  422. for (var _type in t.DEPRECATED_KEYS) {
  423. _loop(_type);
  424. }
  425. function validate(node, key, val) {
  426. if (!node) return;
  427. var fields = t.NODE_FIELDS[node.type];
  428. if (!fields) return;
  429. var field = fields[key];
  430. if (!field || !field.validate) return;
  431. if (field.optional && val == null) return;
  432. field.validate(node, key, val);
  433. }
  434. function shallowEqual(actual, expected) {
  435. var keys = (0, _keys2.default)(expected);
  436. for (var _iterator3 = keys, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
  437. var _ref3;
  438. if (_isArray3) {
  439. if (_i3 >= _iterator3.length) break;
  440. _ref3 = _iterator3[_i3++];
  441. } else {
  442. _i3 = _iterator3.next();
  443. if (_i3.done) break;
  444. _ref3 = _i3.value;
  445. }
  446. var key = _ref3;
  447. if (actual[key] !== expected[key]) {
  448. return false;
  449. }
  450. }
  451. return true;
  452. }
  453. function appendToMemberExpression(member, append, computed) {
  454. member.object = t.memberExpression(member.object, member.property, member.computed);
  455. member.property = append;
  456. member.computed = !!computed;
  457. return member;
  458. }
  459. function prependToMemberExpression(member, prepend) {
  460. member.object = t.memberExpression(prepend, member.object);
  461. return member;
  462. }
  463. function ensureBlock(node) {
  464. var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "body";
  465. return node[key] = t.toBlock(node[key], node);
  466. }
  467. function clone(node) {
  468. if (!node) return node;
  469. var newNode = {};
  470. for (var key in node) {
  471. if (key[0] === "_") continue;
  472. newNode[key] = node[key];
  473. }
  474. return newNode;
  475. }
  476. function cloneWithoutLoc(node) {
  477. var newNode = clone(node);
  478. delete newNode.loc;
  479. return newNode;
  480. }
  481. function cloneDeep(node) {
  482. if (!node) return node;
  483. var newNode = {};
  484. for (var key in node) {
  485. if (key[0] === "_") continue;
  486. var val = node[key];
  487. if (val) {
  488. if (val.type) {
  489. val = t.cloneDeep(val);
  490. } else if (Array.isArray(val)) {
  491. val = val.map(t.cloneDeep);
  492. }
  493. }
  494. newNode[key] = val;
  495. }
  496. return newNode;
  497. }
  498. function buildMatchMemberExpression(match, allowPartial) {
  499. var parts = match.split(".");
  500. return function (member) {
  501. if (!t.isMemberExpression(member)) return false;
  502. var search = [member];
  503. var i = 0;
  504. while (search.length) {
  505. var node = search.shift();
  506. if (allowPartial && i === parts.length) {
  507. return true;
  508. }
  509. if (t.isIdentifier(node)) {
  510. if (parts[i] !== node.name) return false;
  511. } else if (t.isStringLiteral(node)) {
  512. if (parts[i] !== node.value) return false;
  513. } else if (t.isMemberExpression(node)) {
  514. if (node.computed && !t.isStringLiteral(node.property)) {
  515. return false;
  516. } else {
  517. search.push(node.object);
  518. search.push(node.property);
  519. continue;
  520. }
  521. } else {
  522. return false;
  523. }
  524. if (++i > parts.length) {
  525. return false;
  526. }
  527. }
  528. return true;
  529. };
  530. }
  531. function removeComments(node) {
  532. for (var _iterator4 = t.COMMENT_KEYS, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
  533. var _ref4;
  534. if (_isArray4) {
  535. if (_i4 >= _iterator4.length) break;
  536. _ref4 = _iterator4[_i4++];
  537. } else {
  538. _i4 = _iterator4.next();
  539. if (_i4.done) break;
  540. _ref4 = _i4.value;
  541. }
  542. var key = _ref4;
  543. delete node[key];
  544. }
  545. return node;
  546. }
  547. function inheritsComments(child, parent) {
  548. inheritTrailingComments(child, parent);
  549. inheritLeadingComments(child, parent);
  550. inheritInnerComments(child, parent);
  551. return child;
  552. }
  553. function inheritTrailingComments(child, parent) {
  554. _inheritComments("trailingComments", child, parent);
  555. }
  556. function inheritLeadingComments(child, parent) {
  557. _inheritComments("leadingComments", child, parent);
  558. }
  559. function inheritInnerComments(child, parent) {
  560. _inheritComments("innerComments", child, parent);
  561. }
  562. function _inheritComments(key, child, parent) {
  563. if (child && parent) {
  564. child[key] = (0, _uniq2.default)([].concat(child[key], parent[key]).filter(Boolean));
  565. }
  566. }
  567. function inherits(child, parent) {
  568. if (!child || !parent) return child;
  569. for (var _iterator5 = t.INHERIT_KEYS.optional, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
  570. var _ref5;
  571. if (_isArray5) {
  572. if (_i5 >= _iterator5.length) break;
  573. _ref5 = _iterator5[_i5++];
  574. } else {
  575. _i5 = _iterator5.next();
  576. if (_i5.done) break;
  577. _ref5 = _i5.value;
  578. }
  579. var _key2 = _ref5;
  580. if (child[_key2] == null) {
  581. child[_key2] = parent[_key2];
  582. }
  583. }
  584. for (var key in parent) {
  585. if (key[0] === "_") child[key] = parent[key];
  586. }
  587. for (var _iterator6 = t.INHERIT_KEYS.force, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
  588. var _ref6;
  589. if (_isArray6) {
  590. if (_i6 >= _iterator6.length) break;
  591. _ref6 = _iterator6[_i6++];
  592. } else {
  593. _i6 = _iterator6.next();
  594. if (_i6.done) break;
  595. _ref6 = _i6.value;
  596. }
  597. var _key3 = _ref6;
  598. child[_key3] = parent[_key3];
  599. }
  600. t.inheritsComments(child, parent);
  601. return child;
  602. }
  603. function assertNode(node) {
  604. if (!isNode(node)) {
  605. throw new TypeError("Not a valid node " + (node && node.type));
  606. }
  607. }
  608. function isNode(node) {
  609. return !!(node && _definitions.VISITOR_KEYS[node.type]);
  610. }
  611. (0, _toFastProperties2.default)(t);
  612. (0, _toFastProperties2.default)(t.VISITOR_KEYS);
  613. function traverseFast(node, enter, opts) {
  614. if (!node) return;
  615. var keys = t.VISITOR_KEYS[node.type];
  616. if (!keys) return;
  617. opts = opts || {};
  618. enter(node, opts);
  619. for (var _iterator7 = keys, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
  620. var _ref7;
  621. if (_isArray7) {
  622. if (_i7 >= _iterator7.length) break;
  623. _ref7 = _iterator7[_i7++];
  624. } else {
  625. _i7 = _iterator7.next();
  626. if (_i7.done) break;
  627. _ref7 = _i7.value;
  628. }
  629. var key = _ref7;
  630. var subNode = node[key];
  631. if (Array.isArray(subNode)) {
  632. for (var _iterator8 = subNode, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
  633. var _ref8;
  634. if (_isArray8) {
  635. if (_i8 >= _iterator8.length) break;
  636. _ref8 = _iterator8[_i8++];
  637. } else {
  638. _i8 = _iterator8.next();
  639. if (_i8.done) break;
  640. _ref8 = _i8.value;
  641. }
  642. var _node = _ref8;
  643. traverseFast(_node, enter, opts);
  644. }
  645. } else {
  646. traverseFast(subNode, enter, opts);
  647. }
  648. }
  649. }
  650. var CLEAR_KEYS = ["tokens", "start", "end", "loc", "raw", "rawValue"];
  651. var CLEAR_KEYS_PLUS_COMMENTS = t.COMMENT_KEYS.concat(["comments"]).concat(CLEAR_KEYS);
  652. function removeProperties(node, opts) {
  653. opts = opts || {};
  654. var map = opts.preserveComments ? CLEAR_KEYS : CLEAR_KEYS_PLUS_COMMENTS;
  655. for (var _iterator9 = map, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : (0, _getIterator3.default)(_iterator9);;) {
  656. var _ref9;
  657. if (_isArray9) {
  658. if (_i9 >= _iterator9.length) break;
  659. _ref9 = _iterator9[_i9++];
  660. } else {
  661. _i9 = _iterator9.next();
  662. if (_i9.done) break;
  663. _ref9 = _i9.value;
  664. }
  665. var _key4 = _ref9;
  666. if (node[_key4] != null) node[_key4] = undefined;
  667. }
  668. for (var key in node) {
  669. if (key[0] === "_" && node[key] != null) node[key] = undefined;
  670. }
  671. var syms = (0, _getOwnPropertySymbols2.default)(node);
  672. for (var _iterator10 = syms, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : (0, _getIterator3.default)(_iterator10);;) {
  673. var _ref10;
  674. if (_isArray10) {
  675. if (_i10 >= _iterator10.length) break;
  676. _ref10 = _iterator10[_i10++];
  677. } else {
  678. _i10 = _iterator10.next();
  679. if (_i10.done) break;
  680. _ref10 = _i10.value;
  681. }
  682. var sym = _ref10;
  683. node[sym] = null;
  684. }
  685. }
  686. function removePropertiesDeep(tree, opts) {
  687. traverseFast(tree, removeProperties, opts);
  688. return tree;
  689. }