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node_modules.9
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is-async-function
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EDIT :: index.js
'use strict'; var callBound = require('call-bound'); var safeRegexTest = require('safe-regex-test'); var toStr = callBound('Object.prototype.toString'); var fnToStr = callBound('Function.prototype.toString'); var isFnRegex = safeRegexTest(/^\s*async(?:\s+function(?:\s+|\()|\s*\()/); var hasToStringTag = require('has-tostringtag/shams')(); var getProto = require('get-proto'); var getAsyncFunc = require('async-function'); /** @type {import('.')} */ module.exports = function isAsyncFunction(fn) { if (typeof fn !== 'function') { return false; } if (isFnRegex(fnToStr(fn))) { return true; } if (!hasToStringTag) { var str = toStr(fn); return str === '[object AsyncFunction]'; } if (!getProto) { return false; } var asyncFunc = getAsyncFunc(); return asyncFunc && asyncFunc.prototype === getProto(fn); };
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