expressions.js 8.0 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.LogicalExpression = exports.BinaryExpression = exports.AssignmentExpression = AssignmentExpression;
  6. exports.AssignmentPattern = AssignmentPattern;
  7. exports.AwaitExpression = AwaitExpression;
  8. exports.BindExpression = BindExpression;
  9. exports.CallExpression = CallExpression;
  10. exports.ConditionalExpression = ConditionalExpression;
  11. exports.Decorator = Decorator;
  12. exports.DoExpression = DoExpression;
  13. exports.EmptyStatement = EmptyStatement;
  14. exports.ExpressionStatement = ExpressionStatement;
  15. exports.Import = Import;
  16. exports.MemberExpression = MemberExpression;
  17. exports.MetaProperty = MetaProperty;
  18. exports.ModuleExpression = ModuleExpression;
  19. exports.NewExpression = NewExpression;
  20. exports.OptionalCallExpression = OptionalCallExpression;
  21. exports.OptionalMemberExpression = OptionalMemberExpression;
  22. exports.ParenthesizedExpression = ParenthesizedExpression;
  23. exports.PrivateName = PrivateName;
  24. exports.SequenceExpression = SequenceExpression;
  25. exports.Super = Super;
  26. exports.ThisExpression = ThisExpression;
  27. exports.UnaryExpression = UnaryExpression;
  28. exports.UpdateExpression = UpdateExpression;
  29. exports.V8IntrinsicIdentifier = V8IntrinsicIdentifier;
  30. exports.YieldExpression = YieldExpression;
  31. exports._shouldPrintDecoratorsBeforeExport = _shouldPrintDecoratorsBeforeExport;
  32. var _t = require("@babel/types");
  33. var n = require("../node/index.js");
  34. const {
  35. isCallExpression,
  36. isLiteral,
  37. isMemberExpression,
  38. isNewExpression
  39. } = _t;
  40. function UnaryExpression(node) {
  41. const {
  42. operator
  43. } = node;
  44. if (operator === "void" || operator === "delete" || operator === "typeof" || operator === "throw") {
  45. this.word(operator);
  46. this.space();
  47. } else {
  48. this.token(operator);
  49. }
  50. this.print(node.argument, node);
  51. }
  52. function DoExpression(node) {
  53. if (node.async) {
  54. this.word("async", true);
  55. this.space();
  56. }
  57. this.word("do");
  58. this.space();
  59. this.print(node.body, node);
  60. }
  61. function ParenthesizedExpression(node) {
  62. this.tokenChar(40);
  63. this.print(node.expression, node);
  64. this.rightParens(node);
  65. }
  66. function UpdateExpression(node) {
  67. if (node.prefix) {
  68. this.token(node.operator);
  69. this.print(node.argument, node);
  70. } else {
  71. this.printTerminatorless(node.argument, node, true);
  72. this.token(node.operator);
  73. }
  74. }
  75. function ConditionalExpression(node) {
  76. this.print(node.test, node);
  77. this.space();
  78. this.tokenChar(63);
  79. this.space();
  80. this.print(node.consequent, node);
  81. this.space();
  82. this.tokenChar(58);
  83. this.space();
  84. this.print(node.alternate, node);
  85. }
  86. function NewExpression(node, parent) {
  87. this.word("new");
  88. this.space();
  89. this.print(node.callee, node);
  90. if (this.format.minified && node.arguments.length === 0 && !node.optional && !isCallExpression(parent, {
  91. callee: node
  92. }) && !isMemberExpression(parent) && !isNewExpression(parent)) {
  93. return;
  94. }
  95. this.print(node.typeArguments, node);
  96. this.print(node.typeParameters, node);
  97. if (node.optional) {
  98. this.token("?.");
  99. }
  100. this.tokenChar(40);
  101. this.printList(node.arguments, node);
  102. this.rightParens(node);
  103. }
  104. function SequenceExpression(node) {
  105. this.printList(node.expressions, node);
  106. }
  107. function ThisExpression() {
  108. this.word("this");
  109. }
  110. function Super() {
  111. this.word("super");
  112. }
  113. function isDecoratorMemberExpression(node) {
  114. switch (node.type) {
  115. case "Identifier":
  116. return true;
  117. case "MemberExpression":
  118. return !node.computed && node.property.type === "Identifier" && isDecoratorMemberExpression(node.object);
  119. default:
  120. return false;
  121. }
  122. }
  123. function shouldParenthesizeDecoratorExpression(node) {
  124. if (node.type === "ParenthesizedExpression") {
  125. return false;
  126. }
  127. return !isDecoratorMemberExpression(node.type === "CallExpression" ? node.callee : node);
  128. }
  129. function _shouldPrintDecoratorsBeforeExport(node) {
  130. if (typeof this.format.decoratorsBeforeExport === "boolean") {
  131. return this.format.decoratorsBeforeExport;
  132. }
  133. return typeof node.start === "number" && node.start === node.declaration.start;
  134. }
  135. function Decorator(node) {
  136. this.tokenChar(64);
  137. const {
  138. expression
  139. } = node;
  140. if (shouldParenthesizeDecoratorExpression(expression)) {
  141. this.tokenChar(40);
  142. this.print(expression, node);
  143. this.tokenChar(41);
  144. } else {
  145. this.print(expression, node);
  146. }
  147. this.newline();
  148. }
  149. function OptionalMemberExpression(node) {
  150. let {
  151. computed
  152. } = node;
  153. const {
  154. optional,
  155. property
  156. } = node;
  157. this.print(node.object, node);
  158. if (!computed && isMemberExpression(property)) {
  159. throw new TypeError("Got a MemberExpression for MemberExpression property");
  160. }
  161. if (isLiteral(property) && typeof property.value === "number") {
  162. computed = true;
  163. }
  164. if (optional) {
  165. this.token("?.");
  166. }
  167. if (computed) {
  168. this.tokenChar(91);
  169. this.print(property, node);
  170. this.tokenChar(93);
  171. } else {
  172. if (!optional) {
  173. this.tokenChar(46);
  174. }
  175. this.print(property, node);
  176. }
  177. }
  178. function OptionalCallExpression(node) {
  179. this.print(node.callee, node);
  180. this.print(node.typeParameters, node);
  181. if (node.optional) {
  182. this.token("?.");
  183. }
  184. this.print(node.typeArguments, node);
  185. this.tokenChar(40);
  186. this.printList(node.arguments, node);
  187. this.rightParens(node);
  188. }
  189. function CallExpression(node) {
  190. this.print(node.callee, node);
  191. this.print(node.typeArguments, node);
  192. this.print(node.typeParameters, node);
  193. this.tokenChar(40);
  194. this.printList(node.arguments, node);
  195. this.rightParens(node);
  196. }
  197. function Import() {
  198. this.word("import");
  199. }
  200. function AwaitExpression(node) {
  201. this.word("await");
  202. if (node.argument) {
  203. this.space();
  204. this.printTerminatorless(node.argument, node, false);
  205. }
  206. }
  207. function YieldExpression(node) {
  208. this.word("yield", true);
  209. if (node.delegate) {
  210. this.tokenChar(42);
  211. if (node.argument) {
  212. this.space();
  213. this.print(node.argument, node);
  214. }
  215. } else {
  216. if (node.argument) {
  217. this.space();
  218. this.printTerminatorless(node.argument, node, false);
  219. }
  220. }
  221. }
  222. function EmptyStatement() {
  223. this.semicolon(true);
  224. }
  225. function ExpressionStatement(node) {
  226. this.print(node.expression, node);
  227. this.semicolon();
  228. }
  229. function AssignmentPattern(node) {
  230. this.print(node.left, node);
  231. if (node.left.optional) this.tokenChar(63);
  232. this.print(node.left.typeAnnotation, node);
  233. this.space();
  234. this.tokenChar(61);
  235. this.space();
  236. this.print(node.right, node);
  237. }
  238. function AssignmentExpression(node, parent) {
  239. const parens = this.inForStatementInitCounter && node.operator === "in" && !n.needsParens(node, parent);
  240. if (parens) {
  241. this.tokenChar(40);
  242. }
  243. this.print(node.left, node);
  244. this.space();
  245. if (node.operator === "in" || node.operator === "instanceof") {
  246. this.word(node.operator);
  247. } else {
  248. this.token(node.operator);
  249. }
  250. this.space();
  251. this.print(node.right, node);
  252. if (parens) {
  253. this.tokenChar(41);
  254. }
  255. }
  256. function BindExpression(node) {
  257. this.print(node.object, node);
  258. this.token("::");
  259. this.print(node.callee, node);
  260. }
  261. function MemberExpression(node) {
  262. this.print(node.object, node);
  263. if (!node.computed && isMemberExpression(node.property)) {
  264. throw new TypeError("Got a MemberExpression for MemberExpression property");
  265. }
  266. let computed = node.computed;
  267. if (isLiteral(node.property) && typeof node.property.value === "number") {
  268. computed = true;
  269. }
  270. if (computed) {
  271. this.tokenChar(91);
  272. this.print(node.property, node);
  273. this.tokenChar(93);
  274. } else {
  275. this.tokenChar(46);
  276. this.print(node.property, node);
  277. }
  278. }
  279. function MetaProperty(node) {
  280. this.print(node.meta, node);
  281. this.tokenChar(46);
  282. this.print(node.property, node);
  283. }
  284. function PrivateName(node) {
  285. this.tokenChar(35);
  286. this.print(node.id, node);
  287. }
  288. function V8IntrinsicIdentifier(node) {
  289. this.tokenChar(37);
  290. this.word(node.name);
  291. }
  292. function ModuleExpression(node) {
  293. this.word("module", true);
  294. this.space();
  295. this.tokenChar(123);
  296. this.indent();
  297. const {
  298. body
  299. } = node;
  300. if (body.body.length || body.directives.length) {
  301. this.newline();
  302. }
  303. this.print(body, node);
  304. this.dedent();
  305. this.rightBrace(node);
  306. }
  307. //# sourceMappingURL=expressions.js.map