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- 'use strict';
- const MESSAGE_ID_IDENTIFIER = 'identifier';
- const MESSAGE_ID_NON_IDENTIFIER = 'non-identifier';
- const messages = {
- [MESSAGE_ID_IDENTIFIER]: 'Do not use an object literal as default for parameter `{{parameter}}`.',
- [MESSAGE_ID_NON_IDENTIFIER]: 'Do not use an object literal as default.',
- };
- const objectParameterSelector = [
- ':function > AssignmentPattern.params',
- '[right.type="ObjectExpression"]',
- '[right.properties.length>0]',
- ].join('');
- /** @param {import('eslint').Rule.RuleContext} context */
- const create = () => ({
- [objectParameterSelector]: node => {
- const {left, right} = node;
- if (left.type === 'Identifier') {
- return {
- node: left,
- messageId: MESSAGE_ID_IDENTIFIER,
- data: {parameter: left.name},
- };
- }
- return {
- node: right,
- messageId: MESSAGE_ID_NON_IDENTIFIER,
- };
- },
- });
- /** @type {import('eslint').Rule.RuleModule} */
- module.exports = {
- create,
- meta: {
- type: 'problem',
- docs: {
- description: 'Disallow the use of objects as default parameters.',
- },
- messages,
- },
- };
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