| Path : /var/www/html/infraai.ai/frontend/node_modules/core-js-pure/modules/ |
|
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| Current File : /var/www/html/infraai.ai/frontend/node_modules/core-js-pure/modules/esnext.function.is-callable.js |
'use strict';
var $ = require('../internals/export');
var uncurryThis = require('../internals/function-uncurry-this');
var $isCallable = require('../internals/is-callable');
var inspectSource = require('../internals/inspect-source');
var hasOwn = require('../internals/has-own-property');
var DESCRIPTORS = require('../internals/descriptors');
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
var classRegExp = /^\s*class\b/;
var exec = uncurryThis(classRegExp.exec);
var isClassConstructor = function (argument) {
try {
// `Function#toString` throws on some built-it function in some legacy engines
// (for example, `DOMQuad` and similar in FF41-)
if (!DESCRIPTORS || !exec(classRegExp, inspectSource(argument))) return false;
} catch (error) { /* empty */ }
var prototype = getOwnPropertyDescriptor(argument, 'prototype');
return !!prototype && hasOwn(prototype, 'writable') && !prototype.writable;
};
// `Function.isCallable` method
// https://github.com/caitp/TC39-Proposals/blob/trunk/tc39-reflect-isconstructor-iscallable.md
$({ target: 'Function', stat: true, sham: true, forced: true }, {
isCallable: function isCallable(argument) {
return $isCallable(argument) && !isClassConstructor(argument);
}
});