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- /**
- * Rule: no-callback-in-promise
- * Avoid calling back inside of a promise
- */
- 'use strict'
- const getDocsUrl = require('./lib/get-docs-url')
- const hasPromiseCallback = require('./lib/has-promise-callback')
- const isInsidePromise = require('./lib/is-inside-promise')
- const isCallback = require('./lib/is-callback')
- module.exports = {
- meta: {
- type: 'suggestion',
- docs: {
- url: getDocsUrl('no-callback-in-promise'),
- },
- messages: {
- callback: 'Avoid calling back inside of a promise.',
- },
- schema: [
- {
- type: 'object',
- properties: {
- exceptions: {
- type: 'array',
- items: {
- type: 'string',
- },
- },
- },
- additionalProperties: false,
- },
- ],
- },
- create(context) {
- return {
- CallExpression(node) {
- const options = context.options[0] || {}
- const exceptions = options.exceptions || []
- if (!isCallback(node, exceptions)) {
- // in general we send you packing if you're not a callback
- // but we also need to watch out for whatever.then(cb)
- if (hasPromiseCallback(node)) {
- const name =
- node.arguments && node.arguments[0] && node.arguments[0].name
- if (
- name === 'callback' ||
- name === 'cb' ||
- name === 'next' ||
- name === 'done'
- ) {
- context.report({
- node: node.arguments[0],
- messageId: 'callback',
- })
- }
- }
- return
- }
- if (context.getAncestors().some(isInsidePromise)) {
- context.report({
- node,
- messageId: 'callback',
- })
- }
- },
- }
- },
- }
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