lang.js 2.0 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768
  1. "use strict";
  2. var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
  3. Object.defineProperty(exports, "__esModule", {
  4. value: true
  5. });
  6. exports["default"] = void 0;
  7. var _jsxAstUtils = require("jsx-ast-utils");
  8. var _languageTags = _interopRequireDefault(require("language-tags"));
  9. var _schemas = require("../util/schemas");
  10. var _getElementType = _interopRequireDefault(require("../util/getElementType"));
  11. /**
  12. * @fileoverview Enforce lang attribute has a valid value.
  13. * @author Ethan Cohen
  14. */
  15. // ----------------------------------------------------------------------------
  16. // Rule Definition
  17. // ----------------------------------------------------------------------------
  18. var errorMessage = 'lang attribute must have a valid value.';
  19. var schema = (0, _schemas.generateObjSchema)();
  20. var _default = exports["default"] = {
  21. meta: {
  22. docs: {
  23. url: 'https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/tree/HEAD/docs/rules/lang.md',
  24. description: 'Enforce lang attribute has a valid value.'
  25. },
  26. schema: [schema]
  27. },
  28. create: function create(context) {
  29. var elementType = (0, _getElementType["default"])(context);
  30. return {
  31. JSXAttribute: function JSXAttribute(node) {
  32. var name = (0, _jsxAstUtils.propName)(node);
  33. if (name && name.toUpperCase() !== 'LANG') {
  34. return;
  35. }
  36. var parent = node.parent;
  37. var type = elementType(parent);
  38. if (type && type !== 'html') {
  39. return;
  40. }
  41. var value = (0, _jsxAstUtils.getLiteralPropValue)(node);
  42. // Don't check identifiers
  43. if (value === null) {
  44. return;
  45. }
  46. if (value === undefined) {
  47. context.report({
  48. node,
  49. message: errorMessage
  50. });
  51. return;
  52. }
  53. if (_languageTags["default"].check(value)) {
  54. return;
  55. }
  56. context.report({
  57. node,
  58. message: errorMessage
  59. });
  60. }
  61. };
  62. }
  63. };
  64. module.exports = exports.default;