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