index.js 20 KB

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  1. "use strict";
  2. exports.__esModule = true;
  3. var _keys = require("babel-runtime/core-js/object/keys");
  4. var _keys2 = _interopRequireDefault(_keys);
  5. var _create = require("babel-runtime/core-js/object/create");
  6. var _create2 = _interopRequireDefault(_create);
  7. var _getIterator2 = require("babel-runtime/core-js/get-iterator");
  8. var _getIterator3 = _interopRequireDefault(_getIterator2);
  9. var _symbol = require("babel-runtime/core-js/symbol");
  10. var _symbol2 = _interopRequireDefault(_symbol);
  11. exports.default = function () {
  12. var REASSIGN_REMAP_SKIP = (0, _symbol2.default)();
  13. var reassignmentVisitor = {
  14. ReferencedIdentifier: function ReferencedIdentifier(path) {
  15. var name = path.node.name;
  16. var remap = this.remaps[name];
  17. if (!remap) return;
  18. if (this.scope.getBinding(name) !== path.scope.getBinding(name)) return;
  19. if (path.parentPath.isCallExpression({ callee: path.node })) {
  20. path.replaceWith(t.sequenceExpression([t.numericLiteral(0), remap]));
  21. } else {
  22. path.replaceWith(remap);
  23. }
  24. this.requeueInParent(path);
  25. },
  26. AssignmentExpression: function AssignmentExpression(path) {
  27. var node = path.node;
  28. if (node[REASSIGN_REMAP_SKIP]) return;
  29. var left = path.get("left");
  30. if (!left.isIdentifier()) return;
  31. var name = left.node.name;
  32. var exports = this.exports[name];
  33. if (!exports) return;
  34. if (this.scope.getBinding(name) !== path.scope.getBinding(name)) return;
  35. node[REASSIGN_REMAP_SKIP] = true;
  36. for (var _iterator = exports, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
  37. var _ref;
  38. if (_isArray) {
  39. if (_i >= _iterator.length) break;
  40. _ref = _iterator[_i++];
  41. } else {
  42. _i = _iterator.next();
  43. if (_i.done) break;
  44. _ref = _i.value;
  45. }
  46. var reid = _ref;
  47. node = buildExportsAssignment(reid, node).expression;
  48. }
  49. path.replaceWith(node);
  50. this.requeueInParent(path);
  51. },
  52. UpdateExpression: function UpdateExpression(path) {
  53. var arg = path.get("argument");
  54. if (!arg.isIdentifier()) return;
  55. var name = arg.node.name;
  56. var exports = this.exports[name];
  57. if (!exports) return;
  58. if (this.scope.getBinding(name) !== path.scope.getBinding(name)) return;
  59. var node = t.assignmentExpression(path.node.operator[0] + "=", arg.node, t.numericLiteral(1));
  60. if (path.parentPath.isExpressionStatement() && !path.isCompletionRecord() || path.node.prefix) {
  61. path.replaceWith(node);
  62. this.requeueInParent(path);
  63. return;
  64. }
  65. var nodes = [];
  66. nodes.push(node);
  67. var operator = void 0;
  68. if (path.node.operator === "--") {
  69. operator = "+";
  70. } else {
  71. operator = "-";
  72. }
  73. nodes.push(t.binaryExpression(operator, arg.node, t.numericLiteral(1)));
  74. var newPaths = path.replaceWithMultiple(t.sequenceExpression(nodes));
  75. for (var _iterator2 = newPaths, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
  76. var _ref2;
  77. if (_isArray2) {
  78. if (_i2 >= _iterator2.length) break;
  79. _ref2 = _iterator2[_i2++];
  80. } else {
  81. _i2 = _iterator2.next();
  82. if (_i2.done) break;
  83. _ref2 = _i2.value;
  84. }
  85. var newPath = _ref2;
  86. this.requeueInParent(newPath);
  87. }
  88. }
  89. };
  90. return {
  91. inherits: require("babel-plugin-transform-strict-mode"),
  92. visitor: {
  93. ThisExpression: function ThisExpression(path, state) {
  94. if (this.ranCommonJS) return;
  95. if (state.opts.allowTopLevelThis !== true && !path.findParent(function (path) {
  96. return !path.is("shadow") && THIS_BREAK_KEYS.indexOf(path.type) >= 0;
  97. })) {
  98. path.replaceWith(t.identifier("undefined"));
  99. }
  100. },
  101. Program: {
  102. exit: function exit(path) {
  103. this.ranCommonJS = true;
  104. var strict = !!this.opts.strict;
  105. var scope = path.scope;
  106. scope.rename("module");
  107. scope.rename("exports");
  108. scope.rename("require");
  109. var hasExports = false;
  110. var hasImports = false;
  111. var body = path.get("body");
  112. var imports = (0, _create2.default)(null);
  113. var exports = (0, _create2.default)(null);
  114. var nonHoistedExportNames = (0, _create2.default)(null);
  115. var topNodes = [];
  116. var remaps = (0, _create2.default)(null);
  117. var requires = (0, _create2.default)(null);
  118. var exportDefaultFound = false;
  119. function addRequire(source, blockHoist) {
  120. var cached = requires[source];
  121. if (cached) return cached;
  122. var ref = path.scope.generateUidIdentifier((0, _path2.basename)(source, (0, _path2.extname)(source)));
  123. var varDecl = t.variableDeclaration("var", [t.variableDeclarator(ref, buildRequire(t.stringLiteral(source)).expression)]);
  124. if (imports[source]) {
  125. varDecl.loc = imports[source].loc;
  126. }
  127. if (typeof blockHoist === "number" && blockHoist > 0) {
  128. varDecl._blockHoist = blockHoist;
  129. }
  130. topNodes.push(varDecl);
  131. return requires[source] = ref;
  132. }
  133. function addTo(obj, key, arr) {
  134. var existing = obj[key] || [];
  135. obj[key] = existing.concat(arr);
  136. }
  137. for (var _iterator3 = body, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
  138. var _ref3;
  139. if (_isArray3) {
  140. if (_i3 >= _iterator3.length) break;
  141. _ref3 = _iterator3[_i3++];
  142. } else {
  143. _i3 = _iterator3.next();
  144. if (_i3.done) break;
  145. _ref3 = _i3.value;
  146. }
  147. var _path = _ref3;
  148. if (_path.isExportDeclaration()) {
  149. hasExports = true;
  150. var specifiers = [].concat(_path.get("declaration"), _path.get("specifiers"));
  151. for (var _iterator5 = specifiers, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
  152. var _ref5;
  153. if (_isArray5) {
  154. if (_i5 >= _iterator5.length) break;
  155. _ref5 = _iterator5[_i5++];
  156. } else {
  157. _i5 = _iterator5.next();
  158. if (_i5.done) break;
  159. _ref5 = _i5.value;
  160. }
  161. var _specifier2 = _ref5;
  162. var ids = _specifier2.getBindingIdentifiers();
  163. if (ids.__esModule) {
  164. throw _specifier2.buildCodeFrameError("Illegal export \"__esModule\"");
  165. }
  166. }
  167. }
  168. if (_path.isImportDeclaration()) {
  169. var _importsEntry$specifi;
  170. hasImports = true;
  171. var key = _path.node.source.value;
  172. var importsEntry = imports[key] || {
  173. specifiers: [],
  174. maxBlockHoist: 0,
  175. loc: _path.node.loc
  176. };
  177. (_importsEntry$specifi = importsEntry.specifiers).push.apply(_importsEntry$specifi, _path.node.specifiers);
  178. if (typeof _path.node._blockHoist === "number") {
  179. importsEntry.maxBlockHoist = Math.max(_path.node._blockHoist, importsEntry.maxBlockHoist);
  180. }
  181. imports[key] = importsEntry;
  182. _path.remove();
  183. } else if (_path.isExportDefaultDeclaration()) {
  184. if (exportDefaultFound) {
  185. throw _path.buildCodeFrameError("Only one default export allowed per module.");
  186. }
  187. var declaration = _path.get("declaration");
  188. if (declaration.isFunctionDeclaration()) {
  189. var id = declaration.node.id;
  190. var defNode = t.identifier("default");
  191. if (id) {
  192. addTo(exports, id.name, defNode);
  193. topNodes.push(buildExportsAssignment(defNode, id));
  194. _path.replaceWith(declaration.node);
  195. } else {
  196. topNodes.push(buildExportsAssignment(defNode, t.toExpression(declaration.node)));
  197. _path.remove();
  198. }
  199. } else if (declaration.isClassDeclaration()) {
  200. var _id = declaration.node.id;
  201. var _defNode = t.identifier("default");
  202. if (_id) {
  203. addTo(exports, _id.name, _defNode);
  204. _path.replaceWithMultiple([declaration.node, buildExportsAssignment(_defNode, _id)]);
  205. } else {
  206. _path.replaceWith(buildExportsAssignment(_defNode, t.toExpression(declaration.node)));
  207. }
  208. } else {
  209. _path.replaceWith(buildExportsAssignment(t.identifier("default"), declaration.node));
  210. _path.parentPath.requeue(_path.get("expression.left"));
  211. }
  212. exportDefaultFound = true;
  213. } else if (_path.isExportNamedDeclaration()) {
  214. var _declaration = _path.get("declaration");
  215. if (_declaration.node) {
  216. if (_declaration.isFunctionDeclaration()) {
  217. var _id2 = _declaration.node.id;
  218. addTo(exports, _id2.name, _id2);
  219. topNodes.push(buildExportsAssignment(_id2, _id2));
  220. _path.replaceWith(_declaration.node);
  221. } else if (_declaration.isClassDeclaration()) {
  222. var _id3 = _declaration.node.id;
  223. addTo(exports, _id3.name, _id3);
  224. _path.replaceWithMultiple([_declaration.node, buildExportsAssignment(_id3, _id3)]);
  225. nonHoistedExportNames[_id3.name] = true;
  226. } else if (_declaration.isVariableDeclaration()) {
  227. var declarators = _declaration.get("declarations");
  228. for (var _iterator6 = declarators, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
  229. var _ref6;
  230. if (_isArray6) {
  231. if (_i6 >= _iterator6.length) break;
  232. _ref6 = _iterator6[_i6++];
  233. } else {
  234. _i6 = _iterator6.next();
  235. if (_i6.done) break;
  236. _ref6 = _i6.value;
  237. }
  238. var decl = _ref6;
  239. var _id4 = decl.get("id");
  240. var init = decl.get("init");
  241. if (!init.node) init.replaceWith(t.identifier("undefined"));
  242. if (_id4.isIdentifier()) {
  243. addTo(exports, _id4.node.name, _id4.node);
  244. init.replaceWith(buildExportsAssignment(_id4.node, init.node).expression);
  245. nonHoistedExportNames[_id4.node.name] = true;
  246. } else {}
  247. }
  248. _path.replaceWith(_declaration.node);
  249. }
  250. continue;
  251. }
  252. var _specifiers = _path.get("specifiers");
  253. var nodes = [];
  254. var _source = _path.node.source;
  255. if (_source) {
  256. var ref = addRequire(_source.value, _path.node._blockHoist);
  257. for (var _iterator7 = _specifiers, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
  258. var _ref7;
  259. if (_isArray7) {
  260. if (_i7 >= _iterator7.length) break;
  261. _ref7 = _iterator7[_i7++];
  262. } else {
  263. _i7 = _iterator7.next();
  264. if (_i7.done) break;
  265. _ref7 = _i7.value;
  266. }
  267. var _specifier3 = _ref7;
  268. if (_specifier3.isExportNamespaceSpecifier()) {} else if (_specifier3.isExportDefaultSpecifier()) {} else if (_specifier3.isExportSpecifier()) {
  269. if (_specifier3.node.local.name === "default") {
  270. topNodes.push(buildExportsFrom(t.stringLiteral(_specifier3.node.exported.name), t.memberExpression(t.callExpression(this.addHelper("interopRequireDefault"), [ref]), _specifier3.node.local)));
  271. } else {
  272. topNodes.push(buildExportsFrom(t.stringLiteral(_specifier3.node.exported.name), t.memberExpression(ref, _specifier3.node.local)));
  273. }
  274. nonHoistedExportNames[_specifier3.node.exported.name] = true;
  275. }
  276. }
  277. } else {
  278. for (var _iterator8 = _specifiers, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
  279. var _ref8;
  280. if (_isArray8) {
  281. if (_i8 >= _iterator8.length) break;
  282. _ref8 = _iterator8[_i8++];
  283. } else {
  284. _i8 = _iterator8.next();
  285. if (_i8.done) break;
  286. _ref8 = _i8.value;
  287. }
  288. var _specifier4 = _ref8;
  289. if (_specifier4.isExportSpecifier()) {
  290. addTo(exports, _specifier4.node.local.name, _specifier4.node.exported);
  291. nonHoistedExportNames[_specifier4.node.exported.name] = true;
  292. nodes.push(buildExportsAssignment(_specifier4.node.exported, _specifier4.node.local));
  293. }
  294. }
  295. }
  296. _path.replaceWithMultiple(nodes);
  297. } else if (_path.isExportAllDeclaration()) {
  298. var exportNode = buildExportAll({
  299. OBJECT: addRequire(_path.node.source.value, _path.node._blockHoist)
  300. });
  301. exportNode.loc = _path.node.loc;
  302. topNodes.push(exportNode);
  303. _path.remove();
  304. }
  305. }
  306. for (var source in imports) {
  307. var _imports$source = imports[source];
  308. var specifiers = _imports$source.specifiers;
  309. var maxBlockHoist = _imports$source.maxBlockHoist;
  310. if (specifiers.length) {
  311. var uid = addRequire(source, maxBlockHoist);
  312. var wildcard = void 0;
  313. for (var i = 0; i < specifiers.length; i++) {
  314. var specifier = specifiers[i];
  315. if (t.isImportNamespaceSpecifier(specifier)) {
  316. if (strict) {
  317. remaps[specifier.local.name] = uid;
  318. } else {
  319. var varDecl = t.variableDeclaration("var", [t.variableDeclarator(specifier.local, t.callExpression(this.addHelper("interopRequireWildcard"), [uid]))]);
  320. if (maxBlockHoist > 0) {
  321. varDecl._blockHoist = maxBlockHoist;
  322. }
  323. topNodes.push(varDecl);
  324. }
  325. wildcard = specifier.local;
  326. } else if (t.isImportDefaultSpecifier(specifier)) {
  327. specifiers[i] = t.importSpecifier(specifier.local, t.identifier("default"));
  328. }
  329. }
  330. for (var _iterator4 = specifiers, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
  331. var _ref4;
  332. if (_isArray4) {
  333. if (_i4 >= _iterator4.length) break;
  334. _ref4 = _iterator4[_i4++];
  335. } else {
  336. _i4 = _iterator4.next();
  337. if (_i4.done) break;
  338. _ref4 = _i4.value;
  339. }
  340. var _specifier = _ref4;
  341. if (t.isImportSpecifier(_specifier)) {
  342. var target = uid;
  343. if (_specifier.imported.name === "default") {
  344. if (wildcard) {
  345. target = wildcard;
  346. } else {
  347. target = wildcard = path.scope.generateUidIdentifier(uid.name);
  348. var _varDecl = t.variableDeclaration("var", [t.variableDeclarator(target, t.callExpression(this.addHelper("interopRequireDefault"), [uid]))]);
  349. if (maxBlockHoist > 0) {
  350. _varDecl._blockHoist = maxBlockHoist;
  351. }
  352. topNodes.push(_varDecl);
  353. }
  354. }
  355. remaps[_specifier.local.name] = t.memberExpression(target, t.cloneWithoutLoc(_specifier.imported));
  356. }
  357. }
  358. } else {
  359. var requireNode = buildRequire(t.stringLiteral(source));
  360. requireNode.loc = imports[source].loc;
  361. topNodes.push(requireNode);
  362. }
  363. }
  364. if (hasImports && (0, _keys2.default)(nonHoistedExportNames).length) {
  365. var hoistedExportsNode = t.identifier("undefined");
  366. for (var name in nonHoistedExportNames) {
  367. hoistedExportsNode = buildExportsAssignment(t.identifier(name), hoistedExportsNode).expression;
  368. }
  369. var node = t.expressionStatement(hoistedExportsNode);
  370. node._blockHoist = 3;
  371. topNodes.unshift(node);
  372. }
  373. if (hasExports && !strict) {
  374. var buildTemplate = buildExportsModuleDeclaration;
  375. if (this.opts.loose) buildTemplate = buildLooseExportsModuleDeclaration;
  376. var declar = buildTemplate();
  377. declar._blockHoist = 3;
  378. topNodes.unshift(declar);
  379. }
  380. path.unshiftContainer("body", topNodes);
  381. path.traverse(reassignmentVisitor, {
  382. remaps: remaps,
  383. scope: scope,
  384. exports: exports,
  385. requeueInParent: function requeueInParent(newPath) {
  386. return path.requeue(newPath);
  387. }
  388. });
  389. }
  390. }
  391. }
  392. };
  393. };
  394. var _path2 = require("path");
  395. var _babelTemplate = require("babel-template");
  396. var _babelTemplate2 = _interopRequireDefault(_babelTemplate);
  397. var _babelTypes = require("babel-types");
  398. var t = _interopRequireWildcard(_babelTypes);
  399. 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; } }
  400. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  401. var buildRequire = (0, _babelTemplate2.default)("\n require($0);\n");
  402. var buildExportsModuleDeclaration = (0, _babelTemplate2.default)("\n Object.defineProperty(exports, \"__esModule\", {\n value: true\n });\n");
  403. var buildExportsFrom = (0, _babelTemplate2.default)("\n Object.defineProperty(exports, $0, {\n enumerable: true,\n get: function () {\n return $1;\n }\n });\n");
  404. var buildLooseExportsModuleDeclaration = (0, _babelTemplate2.default)("\n exports.__esModule = true;\n");
  405. var buildExportsAssignment = (0, _babelTemplate2.default)("\n exports.$0 = $1;\n");
  406. var buildExportAll = (0, _babelTemplate2.default)("\n Object.keys(OBJECT).forEach(function (key) {\n if (key === \"default\" || key === \"__esModule\") return;\n Object.defineProperty(exports, key, {\n enumerable: true,\n get: function () {\n return OBJECT[key];\n }\n });\n });\n");
  407. var THIS_BREAK_KEYS = ["FunctionExpression", "FunctionDeclaration", "ClassProperty", "ClassMethod", "ObjectMethod"];
  408. module.exports = exports["default"];