francesco448
28 lines
845 B
JavaScript
28 lines
845 B
JavaScript
'use strict';
|
|
|
|
var reflectGetProto = require('get-proto/Reflect.getPrototypeOf');
|
|
var originalGetProto = require('get-proto/Object.getPrototypeOf');
|
|
|
|
var getDunderProto = require('dunder-proto/get');
|
|
|
|
/** @type {import('get-proto')} */
|
|
module.exports = reflectGetProto
|
|
? function getProto(O) {
|
|
// @ts-expect-error TS can't narrow inside a closure, for some reason
|
|
return reflectGetProto(O);
|
|
}
|
|
: originalGetProto
|
|
? function getProto(O) {
|
|
if (!O || (typeof O !== 'object' && typeof O !== 'function')) {
|
|
throw new TypeError('getProto: not an object');
|
|
}
|
|
// @ts-expect-error TS can't narrow inside a closure, for some reason
|
|
return originalGetProto(O);
|
|
}
|
|
: getDunderProto
|
|
? function getProto(O) {
|
|
// @ts-expect-error TS can't narrow inside a closure, for some reason
|
|
return getDunderProto(O);
|
|
}
|
|
: null;
|