21 lines
		
	
	
		
			562 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			562 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| "use strict";
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| 
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| module.exports.mixin = function mixin(target, source) {
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|   const keys = Object.getOwnPropertyNames(source);
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|   for (let i = 0; i < keys.length; ++i) {
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|     Object.defineProperty(target, keys[i], Object.getOwnPropertyDescriptor(source, keys[i]));
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|   }
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| };
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| 
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| module.exports.wrapperSymbol = Symbol("wrapper");
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| module.exports.implSymbol = Symbol("impl");
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| 
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| module.exports.wrapperForImpl = function (impl) {
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|   return impl[module.exports.wrapperSymbol];
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| };
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| 
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| module.exports.implForWrapper = function (wrapper) {
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|   return wrapper[module.exports.implSymbol];
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| };
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| 
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