expressions.js 7.7 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. var _t = require("@babel/types");
  32. var n = require("../node");
  33. const {
  34. isCallExpression,
  35. isLiteral,
  36. isMemberExpression,
  37. isNewExpression
  38. } = _t;
  39. function UnaryExpression(node) {
  40. if (node.operator === "void" || node.operator === "delete" || node.operator === "typeof" ||
  41. 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 Decorator(node) {
  127. this.tokenChar(64);
  128. const {
  129. expression
  130. } = node;
  131. if (shouldParenthesizeDecoratorExpression(expression)) {
  132. this.tokenChar(40);
  133. this.print(expression, node);
  134. this.tokenChar(41);
  135. } else {
  136. this.print(expression, node);
  137. }
  138. this.newline();
  139. }
  140. function OptionalMemberExpression(node) {
  141. this.print(node.object, node);
  142. if (!node.computed && isMemberExpression(node.property)) {
  143. throw new TypeError("Got a MemberExpression for MemberExpression property");
  144. }
  145. let computed = node.computed;
  146. if (isLiteral(node.property) && typeof node.property.value === "number") {
  147. computed = true;
  148. }
  149. if (node.optional) {
  150. this.token("?.");
  151. }
  152. if (computed) {
  153. this.tokenChar(91);
  154. this.print(node.property, node);
  155. this.tokenChar(93);
  156. } else {
  157. if (!node.optional) {
  158. this.tokenChar(46);
  159. }
  160. this.print(node.property, node);
  161. }
  162. }
  163. function OptionalCallExpression(node) {
  164. this.print(node.callee, node);
  165. this.print(node.typeParameters, node);
  166. if (node.optional) {
  167. this.token("?.");
  168. }
  169. this.print(node.typeArguments, node);
  170. this.tokenChar(40);
  171. this.printList(node.arguments, node);
  172. this.tokenChar(41);
  173. }
  174. function CallExpression(node) {
  175. this.print(node.callee, node);
  176. this.print(node.typeArguments, node);
  177. this.print(node.typeParameters, node);
  178. this.tokenChar(40);
  179. this.printList(node.arguments, node);
  180. this.tokenChar(41);
  181. }
  182. function Import() {
  183. this.word("import");
  184. }
  185. function AwaitExpression(node) {
  186. this.word("await");
  187. if (node.argument) {
  188. this.space();
  189. this.printTerminatorless(node.argument, node, false);
  190. }
  191. }
  192. function YieldExpression(node) {
  193. this.word("yield", true);
  194. if (node.delegate) {
  195. this.tokenChar(42);
  196. if (node.argument) {
  197. this.space();
  198. this.print(node.argument, node);
  199. }
  200. } else {
  201. if (node.argument) {
  202. this.space();
  203. this.printTerminatorless(node.argument, node, false);
  204. }
  205. }
  206. }
  207. function EmptyStatement() {
  208. this.semicolon(true);
  209. }
  210. function ExpressionStatement(node) {
  211. this.print(node.expression, node);
  212. this.semicolon();
  213. }
  214. function AssignmentPattern(node) {
  215. this.print(node.left, node);
  216. if (node.left.optional) this.tokenChar(63);
  217. this.print(node.left.typeAnnotation, node);
  218. this.space();
  219. this.tokenChar(61);
  220. this.space();
  221. this.print(node.right, node);
  222. }
  223. function AssignmentExpression(node, parent) {
  224. const parens = this.inForStatementInitCounter && node.operator === "in" && !n.needsParens(node, parent);
  225. if (parens) {
  226. this.tokenChar(40);
  227. }
  228. this.print(node.left, node);
  229. this.space();
  230. if (node.operator === "in" || node.operator === "instanceof") {
  231. this.word(node.operator);
  232. } else {
  233. this.token(node.operator);
  234. }
  235. this.space();
  236. this.print(node.right, node);
  237. if (parens) {
  238. this.tokenChar(41);
  239. }
  240. }
  241. function BindExpression(node) {
  242. this.print(node.object, node);
  243. this.token("::");
  244. this.print(node.callee, node);
  245. }
  246. function MemberExpression(node) {
  247. this.print(node.object, node);
  248. if (!node.computed && isMemberExpression(node.property)) {
  249. throw new TypeError("Got a MemberExpression for MemberExpression property");
  250. }
  251. let computed = node.computed;
  252. if (isLiteral(node.property) && typeof node.property.value === "number") {
  253. computed = true;
  254. }
  255. if (computed) {
  256. this.tokenChar(91);
  257. this.print(node.property, node);
  258. this.tokenChar(93);
  259. } else {
  260. this.tokenChar(46);
  261. this.print(node.property, node);
  262. }
  263. }
  264. function MetaProperty(node) {
  265. this.print(node.meta, node);
  266. this.tokenChar(46);
  267. this.print(node.property, node);
  268. }
  269. function PrivateName(node) {
  270. this.tokenChar(35);
  271. this.print(node.id, node);
  272. }
  273. function V8IntrinsicIdentifier(node) {
  274. this.tokenChar(37);
  275. this.word(node.name);
  276. }
  277. function ModuleExpression(node) {
  278. this.word("module", true);
  279. this.space();
  280. this.tokenChar(123);
  281. this.indent();
  282. const {
  283. body
  284. } = node;
  285. if (body.body.length || body.directives.length) {
  286. this.newline();
  287. }
  288. this.print(body, node);
  289. this.dedent();
  290. this.sourceWithOffset("end", node.loc, 0, -1);
  291. this.rightBrace();
  292. }
  293. //# sourceMappingURL=expressions.js.map