no-named-as-default.js

'use strict';

var _ExportMap = require('../ExportMap');

var _ExportMap2 = _interopRequireDefault(_ExportMap);

var _importDeclaration = require('../importDeclaration');

var _importDeclaration2 = _interopRequireDefault(_importDeclaration);

var _docsUrl = require('../docsUrl');

var _docsUrl2 = _interopRequireDefault(_docsUrl);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

module.exports = {
  meta: {
    docs: {
      url: (0, _docsUrl2.default)('no-named-as-default')
    }
  },

  create: function (context) {
    function checkDefault(nameKey, defaultSpecifier) {
      // #566: default is a valid specifier
      if (defaultSpecifier[nameKey].name === 'default') return;

      var declaration = (0, _importDeclaration2.default)(context);

      var imports = _ExportMap2.default.get(declaration.source.value, context);
      if (imports == null) return;

      if (imports.errors.length) {
        imports.reportErrors(context, declaration);
        return;
      }

      if (imports.has('default') && imports.has(defaultSpecifier[nameKey].name)) {

        context.report(defaultSpecifier, 'Using exported name \'' + defaultSpecifier[nameKey].name + '\' as identifier for default export.');
      }
    }
    return {
      'ImportDefaultSpecifier': checkDefault.bind(null, 'local'),
      'ExportDefaultSpecifier': checkDefault.bind(null, 'exported')
    };
  }
};
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