index.js 1.7 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 _helperAnnotateAsPure = _interopRequireDefault(require("@babel/helper-annotate-as-pure"));
  8. var _core = require("@babel/core");
  9. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  10. const PURE_CALLS = new Map([["react", ["cloneElement", "createContext", "createElement", "createFactory", "createRef", "forwardRef", "isValidElement", "memo", "lazy"]], ["react-dom", ["createPortal"]]]);
  11. var _default = (0, _helperPluginUtils.declare)(api => {
  12. api.assertVersion(7);
  13. return {
  14. name: "transform-react-pure-annotations",
  15. visitor: {
  16. CallExpression(path) {
  17. if (isReactCall(path)) {
  18. (0, _helperAnnotateAsPure.default)(path);
  19. }
  20. }
  21. }
  22. };
  23. });
  24. exports.default = _default;
  25. function isReactCall(path) {
  26. if (!_core.types.isMemberExpression(path.node.callee)) {
  27. const callee = path.get("callee");
  28. for (const [module, methods] of PURE_CALLS) {
  29. for (const method of methods) {
  30. if (callee.referencesImport(module, method)) {
  31. return true;
  32. }
  33. }
  34. }
  35. return false;
  36. }
  37. for (const [module, methods] of PURE_CALLS) {
  38. const object = path.get("callee.object");
  39. if (object.referencesImport(module, "default") || object.referencesImport(module, "*")) {
  40. for (const method of methods) {
  41. if (_core.types.isIdentifier(path.node.callee.property, {
  42. name: method
  43. })) {
  44. return true;
  45. }
  46. }
  47. return false;
  48. }
  49. }
  50. return false;
  51. }