JavaScript/archive/code/node_modules/call-bind/index.js at main · iu5git/JavaScript · GitHub

History

executable file

47 lines (40 loc) · 1.28 KB

Raw

'use strict';

var bind = require('function-bind');

var GetIntrinsic = require('get-intrinsic');

var $apply = GetIntrinsic('%Function.prototype.apply%');

var $call = GetIntrinsic('%Function.prototype.call%');

var $reflectApply = GetIntrinsic('%Reflect.apply%', true) || bind.call($call, $apply);

var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%', true);

var $defineProperty = GetIntrinsic('%Object.defineProperty%', true);

var $max = GetIntrinsic('%Math.max%');

if ($defineProperty) {

try {

$defineProperty({}, 'a', { value: 1 });

} catch (e) {

// IE 8 has a broken defineProperty

$defineProperty = null;

}

module.exports = function callBind(originalFunction) {

var func = $reflectApply(bind, $call, arguments);

if ($gOPD && $defineProperty) {

var desc = $gOPD(func, 'length');

if (desc.configurable) {

// original length, plus the receiver, minus any additional arguments (after the receiver)

$defineProperty(

func,

'length',

{ value: 1 + $max(0, originalFunction.length - (arguments.length - 1)) }

);

}

return func;

};

var applyBind = function applyBind() {

return $reflectApply(bind, $apply, arguments);

};

if ($defineProperty) {

$defineProperty(module.exports, 'apply', { value: applyBind });

} else {

module.exports.apply = applyBind;

}

JavaScript/archive/code/node_modules/call-bind/index.js at main · iu5git/JavaScript · GitHub

Expand file tree

Breadcrumbs

index.js

Latest commit

History

Breadcrumbs

index.js

File metadata and controls