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							47 lines
						
					
					
						
							1.3 KiB
						
					
					
				
			
		
		
	
	
							47 lines
						
					
					
						
							1.3 KiB
						
					
					
				'use strict'; | 
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var bind = require('function-bind'); | 
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var GetIntrinsic = require('get-intrinsic'); | 
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var $apply = GetIntrinsic('%Function.prototype.apply%'); | 
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var $call = GetIntrinsic('%Function.prototype.call%'); | 
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var $reflectApply = GetIntrinsic('%Reflect.apply%', true) || bind.call($call, $apply); | 
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var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%', true); | 
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var $defineProperty = GetIntrinsic('%Object.defineProperty%', true); | 
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var $max = GetIntrinsic('%Math.max%'); | 
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 | 
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if ($defineProperty) { | 
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	try { | 
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		$defineProperty({}, 'a', { value: 1 }); | 
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	} catch (e) { | 
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		// IE 8 has a broken defineProperty | 
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		$defineProperty = null; | 
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	} | 
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} | 
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module.exports = function callBind(originalFunction) { | 
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	var func = $reflectApply(bind, $call, arguments); | 
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	if ($gOPD && $defineProperty) { | 
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		var desc = $gOPD(func, 'length'); | 
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		if (desc.configurable) { | 
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			// original length, plus the receiver, minus any additional arguments (after the receiver) | 
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			$defineProperty( | 
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				func, | 
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				'length', | 
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				{ value: 1 + $max(0, originalFunction.length - (arguments.length - 1)) } | 
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			); | 
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		} | 
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	} | 
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	return func; | 
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}; | 
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var applyBind = function applyBind() { | 
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	return $reflectApply(bind, $apply, arguments); | 
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}; | 
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if ($defineProperty) { | 
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	$defineProperty(module.exports, 'apply', { value: applyBind }); | 
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} else { | 
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	module.exports.apply = applyBind; | 
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}
 | 
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