exports-last.js 4.1 KB

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  1. 'use strict';
  2. var _docsUrl = require('../docsUrl');
  3. var _docsUrl2 = _interopRequireDefault(_docsUrl);
  4. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  5. function isNonExportStatement(_ref) {
  6. let type = _ref.type;
  7. return type !== 'ExportDefaultDeclaration' && type !== 'ExportNamedDeclaration' && type !== 'ExportAllDeclaration';
  8. }
  9. module.exports = {
  10. meta: {
  11. docs: {
  12. url: (0, _docsUrl2.default)('exports-last')
  13. }
  14. },
  15. create: function (context) {
  16. return {
  17. Program: function (_ref2) {
  18. let body = _ref2.body;
  19. const lastNonExportStatementIndex = body.reduce(function findLastIndex(acc, item, index) {
  20. if (isNonExportStatement(item)) {
  21. return index;
  22. }
  23. return acc;
  24. }, -1);
  25. if (lastNonExportStatementIndex !== -1) {
  26. body.slice(0, lastNonExportStatementIndex).forEach(function checkNonExport(node) {
  27. if (!isNonExportStatement(node)) {
  28. context.report({
  29. node,
  30. message: 'Export statements should appear at the end of the file'
  31. });
  32. }
  33. });
  34. }
  35. }
  36. };
  37. }
  38. };
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