15 lines
		
	
	
		
			304 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			304 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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var global   = require('es5-ext/global')
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  , polyfill = require('../polyfill');
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module.exports = function (t, a) {
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	var cache;
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	a(typeof t(), 'boolean');
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	cache = global.Set;
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	global.Set = polyfill;
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	a(t(), true);
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	if (cache === undefined) delete global.Set;
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	else global.Set = cache;
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};
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