index.js 3.4 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = void 0;
  6. var _helperPluginUtils = require("@babel/helper-plugin-utils");
  7. var _helperCompilationTargets = require("@babel/helper-compilation-targets");
  8. var _helperAnnotateAsPure = require("@babel/helper-annotate-as-pure");
  9. var _core = require("@babel/core");
  10. var _globals = require("globals");
  11. var _transformClass = require("./transformClass.js");
  12. const getBuiltinClasses = category => Object.keys(_globals[category]).filter(name => /^[A-Z]/.test(name));
  13. const builtinClasses = new Set([...getBuiltinClasses("builtin"), ...getBuiltinClasses("browser")]);
  14. var _default = exports.default = (0, _helperPluginUtils.declare)((api, options) => {
  15. var _api$assumption, _api$assumption2, _api$assumption3, _api$assumption4;
  16. api.assertVersion(7);
  17. const {
  18. loose = false
  19. } = options;
  20. const setClassMethods = (_api$assumption = api.assumption("setClassMethods")) != null ? _api$assumption : loose;
  21. const constantSuper = (_api$assumption2 = api.assumption("constantSuper")) != null ? _api$assumption2 : loose;
  22. const superIsCallableConstructor = (_api$assumption3 = api.assumption("superIsCallableConstructor")) != null ? _api$assumption3 : loose;
  23. const noClassCalls = (_api$assumption4 = api.assumption("noClassCalls")) != null ? _api$assumption4 : loose;
  24. const supportUnicodeId = !(0, _helperCompilationTargets.isRequired)("transform-unicode-escapes", api.targets());
  25. const VISITED = new WeakSet();
  26. return {
  27. name: "transform-classes",
  28. visitor: {
  29. ExportDefaultDeclaration(path) {
  30. if (!path.get("declaration").isClassDeclaration()) return;
  31. {
  32. var _path$splitExportDecl;
  33. (_path$splitExportDecl = path.splitExportDeclaration) != null ? _path$splitExportDecl : path.splitExportDeclaration = require("@babel/traverse").NodePath.prototype.splitExportDeclaration;
  34. }
  35. path.splitExportDeclaration();
  36. },
  37. ClassDeclaration(path) {
  38. const {
  39. node
  40. } = path;
  41. const ref = node.id ? _core.types.cloneNode(node.id) : path.scope.generateUidIdentifier("class");
  42. path.replaceWith(_core.types.variableDeclaration("let", [_core.types.variableDeclarator(ref, _core.types.toExpression(node))]));
  43. },
  44. ClassExpression(path, state) {
  45. const {
  46. node
  47. } = path;
  48. if (VISITED.has(node)) return;
  49. {
  50. var _path$ensureFunctionN;
  51. (_path$ensureFunctionN = path.ensureFunctionName) != null ? _path$ensureFunctionN : path.ensureFunctionName = require("@babel/traverse").NodePath.prototype.ensureFunctionName;
  52. }
  53. const replacement = path.ensureFunctionName(supportUnicodeId);
  54. if (replacement && replacement.node !== node) return;
  55. VISITED.add(node);
  56. const [replacedPath] = path.replaceWith((0, _transformClass.default)(path, state.file, builtinClasses, loose, {
  57. setClassMethods,
  58. constantSuper,
  59. superIsCallableConstructor,
  60. noClassCalls
  61. }, supportUnicodeId));
  62. if (replacedPath.isCallExpression()) {
  63. (0, _helperAnnotateAsPure.default)(replacedPath);
  64. const callee = replacedPath.get("callee");
  65. if (callee.isArrowFunctionExpression()) {
  66. callee.arrowFunctionToExpression();
  67. }
  68. }
  69. }
  70. }
  71. };
  72. });
  73. //# sourceMappingURL=index.js.map