14 lines
		
	
	
	
		
			450 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
	
		
			450 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
 | |
| var wellKnownSymbol = require('../internals/well-known-symbol');
 | |
| var defineProperty = require('../internals/object-define-property').f;
 | |
| 
 | |
| var METADATA = wellKnownSymbol('metadata');
 | |
| var FunctionPrototype = Function.prototype;
 | |
| 
 | |
| // Function.prototype[@@metadata]
 | |
| // https://github.com/tc39/proposal-decorator-metadata
 | |
| if (FunctionPrototype[METADATA] === undefined) {
 | |
|   defineProperty(FunctionPrototype, METADATA, {
 | |
|     value: null
 | |
|   });
 | |
| }
 |