expressions.js 6.9 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 = void 0;
  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 = void 0;
  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" || node.operator === "throw") {
  41. this.word(node.operator);
  42. this.space();
  43. } else {
  44. this.token(node.operator);
  45. }
  46. this.print(node.argument, node);
  47. }
  48. function DoExpression(node) {
  49. if (node.async) {
  50. this.word("async");
  51. this.space();
  52. }
  53. this.word("do");
  54. this.space();
  55. this.print(node.body, node);
  56. }
  57. function ParenthesizedExpression(node) {
  58. this.token("(");
  59. this.print(node.expression, node);
  60. this.token(")");
  61. }
  62. function UpdateExpression(node) {
  63. if (node.prefix) {
  64. this.token(node.operator);
  65. this.print(node.argument, node);
  66. } else {
  67. this.startTerminatorless(true);
  68. this.print(node.argument, node);
  69. this.endTerminatorless();
  70. this.token(node.operator);
  71. }
  72. }
  73. function ConditionalExpression(node) {
  74. this.print(node.test, node);
  75. this.space();
  76. this.token("?");
  77. this.space();
  78. this.print(node.consequent, node);
  79. this.space();
  80. this.token(":");
  81. this.space();
  82. this.print(node.alternate, node);
  83. }
  84. function NewExpression(node, parent) {
  85. this.word("new");
  86. this.space();
  87. this.print(node.callee, node);
  88. if (this.format.minified && node.arguments.length === 0 && !node.optional && !isCallExpression(parent, {
  89. callee: node
  90. }) && !isMemberExpression(parent) && !isNewExpression(parent)) {
  91. return;
  92. }
  93. this.print(node.typeArguments, node);
  94. this.print(node.typeParameters, node);
  95. if (node.optional) {
  96. this.token("?.");
  97. }
  98. this.token("(");
  99. this.printList(node.arguments, node);
  100. this.token(")");
  101. }
  102. function SequenceExpression(node) {
  103. this.printList(node.expressions, node);
  104. }
  105. function ThisExpression() {
  106. this.word("this");
  107. }
  108. function Super() {
  109. this.word("super");
  110. }
  111. function Decorator(node) {
  112. this.token("@");
  113. this.print(node.expression, node);
  114. this.newline();
  115. }
  116. function OptionalMemberExpression(node) {
  117. this.print(node.object, node);
  118. if (!node.computed && isMemberExpression(node.property)) {
  119. throw new TypeError("Got a MemberExpression for MemberExpression property");
  120. }
  121. let computed = node.computed;
  122. if (isLiteral(node.property) && typeof node.property.value === "number") {
  123. computed = true;
  124. }
  125. if (node.optional) {
  126. this.token("?.");
  127. }
  128. if (computed) {
  129. this.token("[");
  130. this.print(node.property, node);
  131. this.token("]");
  132. } else {
  133. if (!node.optional) {
  134. this.token(".");
  135. }
  136. this.print(node.property, node);
  137. }
  138. }
  139. function OptionalCallExpression(node) {
  140. this.print(node.callee, node);
  141. this.print(node.typeArguments, node);
  142. this.print(node.typeParameters, node);
  143. if (node.optional) {
  144. this.token("?.");
  145. }
  146. this.token("(");
  147. this.printList(node.arguments, node);
  148. this.token(")");
  149. }
  150. function CallExpression(node) {
  151. this.print(node.callee, node);
  152. this.print(node.typeArguments, node);
  153. this.print(node.typeParameters, node);
  154. this.token("(");
  155. this.printList(node.arguments, node);
  156. this.token(")");
  157. }
  158. function Import() {
  159. this.word("import");
  160. }
  161. function buildYieldAwait(keyword) {
  162. return function (node) {
  163. this.word(keyword);
  164. if (node.delegate) {
  165. this.token("*");
  166. }
  167. if (node.argument) {
  168. this.space();
  169. const terminatorState = this.startTerminatorless();
  170. this.print(node.argument, node);
  171. this.endTerminatorless(terminatorState);
  172. }
  173. };
  174. }
  175. const YieldExpression = buildYieldAwait("yield");
  176. exports.YieldExpression = YieldExpression;
  177. const AwaitExpression = buildYieldAwait("await");
  178. exports.AwaitExpression = AwaitExpression;
  179. function EmptyStatement() {
  180. this.semicolon(true);
  181. }
  182. function ExpressionStatement(node) {
  183. this.print(node.expression, node);
  184. this.semicolon();
  185. }
  186. function AssignmentPattern(node) {
  187. this.print(node.left, node);
  188. if (node.left.optional) this.token("?");
  189. this.print(node.left.typeAnnotation, node);
  190. this.space();
  191. this.token("=");
  192. this.space();
  193. this.print(node.right, node);
  194. }
  195. function AssignmentExpression(node, parent) {
  196. const parens = this.inForStatementInitCounter && node.operator === "in" && !n.needsParens(node, parent);
  197. if (parens) {
  198. this.token("(");
  199. }
  200. this.print(node.left, node);
  201. this.space();
  202. if (node.operator === "in" || node.operator === "instanceof") {
  203. this.word(node.operator);
  204. } else {
  205. this.token(node.operator);
  206. }
  207. this.space();
  208. this.print(node.right, node);
  209. if (parens) {
  210. this.token(")");
  211. }
  212. }
  213. function BindExpression(node) {
  214. this.print(node.object, node);
  215. this.token("::");
  216. this.print(node.callee, node);
  217. }
  218. function MemberExpression(node) {
  219. this.print(node.object, node);
  220. if (!node.computed && isMemberExpression(node.property)) {
  221. throw new TypeError("Got a MemberExpression for MemberExpression property");
  222. }
  223. let computed = node.computed;
  224. if (isLiteral(node.property) && typeof node.property.value === "number") {
  225. computed = true;
  226. }
  227. if (computed) {
  228. this.token("[");
  229. this.print(node.property, node);
  230. this.token("]");
  231. } else {
  232. this.token(".");
  233. this.print(node.property, node);
  234. }
  235. }
  236. function MetaProperty(node) {
  237. this.print(node.meta, node);
  238. this.token(".");
  239. this.print(node.property, node);
  240. }
  241. function PrivateName(node) {
  242. this.token("#");
  243. this.print(node.id, node);
  244. }
  245. function V8IntrinsicIdentifier(node) {
  246. this.token("%");
  247. this.word(node.name);
  248. }
  249. function ModuleExpression(node) {
  250. this.word("module");
  251. this.space();
  252. this.token("{");
  253. if (node.body.body.length === 0) {
  254. this.token("}");
  255. } else {
  256. this.newline();
  257. this.printSequence(node.body.body, node, {
  258. indent: true
  259. });
  260. this.rightBrace();
  261. }
  262. }