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eslint-plugin-promise
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Filename :
no-promise-in-callback.js
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/** * Rule: no-promise-in-callback * Discourage using promises inside of callbacks. */ 'use strict' const getDocsUrl = require('./lib/get-docs-url') const isPromise = require('./lib/is-promise') const isInsideCallback = require('./lib/is-inside-callback') module.exports = { meta: { type: 'suggestion', docs: { url: getDocsUrl('no-promise-in-callback'), }, }, create(context) { return { CallExpression(node) { if (!isPromise(node)) return // if i'm returning the promise, it's probably not really a callback // function, and I should be okay.... if (node.parent.type === 'ReturnStatement') return // what about if the parent is an ArrowFunctionExpression // would that imply an implicit return? if (context.getAncestors().some(isInsideCallback)) { context.report({ node: node.callee, message: 'Avoid using promises inside of callbacks.', }) } }, } }, }